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Code Issues Releases Wiki Activity

Update libpng, libogg, libvorbis to newest versions

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This also fixes a sneaky divide by zero in glpng, because some PNG's width was read incorrectly by the old libpng. (I wonder why it worked anyway...)
This commit is contained in:
fgenesis 2012-01-10 18:43:28 +00:00
parent b2517ec38b
commit 2d795b5bf7
547 changed files with 27688 additions and 165753 deletions
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4
CMakeLists.txt
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@ -29,8 +29,8 @@ SET(FREETYPE2DIR ${EXTLIBDIR}/freetype2)
SET(FREETYPE2SRCDIR ${FREETYPE2DIR}/src)
SET(LUADIR ${EXTLIBDIR}/lua-5.1.4)
SET(LUASRCDIR ${LUADIR}/src)
SET(LIBOGGDIR ${EXTLIBDIR}/libogg-1.2.0)
SET(LIBVORBISDIR ${EXTLIBDIR}/libvorbis-1.3.1)
SET(LIBOGGDIR ${EXTLIBDIR}/libogg-1.3.0)
SET(LIBVORBISDIR ${EXTLIBDIR}/libvorbis-1.3.2)
SET(ZLIBDIR ${EXTLIBDIR}/glpng/zlib)
SET(PNGDIR ${EXTLIBDIR}/glpng/png)

3179
ExternalLibs/glpng/png/png.c
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File diff suppressed because it is too large Load diff

4708
ExternalLibs/glpng/png/png.h
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File diff suppressed because it is too large Load diff

1066
ExternalLibs/glpng/png/pngconf.h
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157
ExternalLibs/glpng/png/pngdebug.h Normal file
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@ -0,0 +1,157 @@
/* pngdebug.h - Debugging macros for libpng, also used in pngtest.c
*
* Copyright (c) 1998-2011 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
*
* Last changed in libpng 1.5.0 [January 6, 2011]
*
* This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer
* and license in png.h
*/
/* Define PNG_DEBUG at compile time for debugging information. Higher
* numbers for PNG_DEBUG mean more debugging information. This has
* only been added since version 0.95 so it is not implemented throughout
* libpng yet, but more support will be added as needed.
*
* png_debug[1-2]?(level, message ,arg{0-2})
* Expands to a statement (either a simple expression or a compound
* do..while(0) statement) that outputs a message with parameter
* substitution if PNG_DEBUG is defined to 2 or more. If PNG_DEBUG
* is undefined, 0 or 1 every png_debug expands to a simple expression
* (actually ((void)0)).
*
* level: level of detail of message, starting at 0. A level 'n'
* message is preceded by 'n' tab characters (not implemented
* on Microsoft compilers unless PNG_DEBUG_FILE is also
* defined, to allow debug DLL compilation with no standard IO).
* message: a printf(3) style text string. A trailing '\n' is added
* to the message.
* arg: 0 to 2 arguments for printf(3) style substitution in message.
*/
#ifndef PNGDEBUG_H
#define PNGDEBUG_H
/* These settings control the formatting of messages in png.c and pngerror.c */
/* Moved to pngdebug.h at 1.5.0 */
# ifndef PNG_LITERAL_SHARP
# define PNG_LITERAL_SHARP 0x23
# endif
# ifndef PNG_LITERAL_LEFT_SQUARE_BRACKET
# define PNG_LITERAL_LEFT_SQUARE_BRACKET 0x5b
# endif
# ifndef PNG_LITERAL_RIGHT_SQUARE_BRACKET
# define PNG_LITERAL_RIGHT_SQUARE_BRACKET 0x5d
# endif
# ifndef PNG_STRING_NEWLINE
# define PNG_STRING_NEWLINE "\n"
# endif
#ifdef PNG_DEBUG
# if (PNG_DEBUG > 0)
# if !defined(PNG_DEBUG_FILE) && defined(_MSC_VER)
# include <crtdbg.h>
# if (PNG_DEBUG > 1)
# ifndef _DEBUG
# define _DEBUG
# endif
# ifndef png_debug
# define png_debug(l,m) _RPT0(_CRT_WARN,m PNG_STRING_NEWLINE)
# endif
# ifndef png_debug1
# define png_debug1(l,m,p1) _RPT1(_CRT_WARN,m PNG_STRING_NEWLINE,p1)
# endif
# ifndef png_debug2
# define png_debug2(l,m,p1,p2) \
_RPT2(_CRT_WARN,m PNG_STRING_NEWLINE,p1,p2)
# endif
# endif
# else /* PNG_DEBUG_FILE || !_MSC_VER */
# ifndef PNG_STDIO_SUPPORTED
# include <stdio.h> /* not included yet */
# endif
# ifndef PNG_DEBUG_FILE
# define PNG_DEBUG_FILE stderr
# endif /* PNG_DEBUG_FILE */
# if (PNG_DEBUG > 1)
/* Note: ["%s"m PNG_STRING_NEWLINE] probably does not work on
* non-ISO compilers
*/
# ifdef __STDC__
# ifndef png_debug
# define png_debug(l,m) \
do { \
int num_tabs=l; \
fprintf(PNG_DEBUG_FILE,"%s"m PNG_STRING_NEWLINE,(num_tabs==1 ? "\t" : \
(num_tabs==2 ? "\t\t":(num_tabs>2 ? "\t\t\t":"")))); \
} while (0)
# endif
# ifndef png_debug1
# define png_debug1(l,m,p1) \
do { \
int num_tabs=l; \
fprintf(PNG_DEBUG_FILE,"%s"m PNG_STRING_NEWLINE,(num_tabs==1 ? "\t" : \
(num_tabs==2 ? "\t\t":(num_tabs>2 ? "\t\t\t":""))),p1); \
} while (0)
# endif
# ifndef png_debug2
# define png_debug2(l,m,p1,p2) \
do { \
int num_tabs=l; \
fprintf(PNG_DEBUG_FILE,"%s"m PNG_STRING_NEWLINE,(num_tabs==1 ? "\t" : \
(num_tabs==2 ? "\t\t":(num_tabs>2 ? "\t\t\t":""))),p1,p2); \
} while (0)
# endif
# else /* __STDC __ */
# ifndef png_debug
# define png_debug(l,m) \
do { \
int num_tabs=l; \
char format[256]; \
snprintf(format,256,"%s%s%s",(num_tabs==1 ? "\t" : \
(num_tabs==2 ? "\t\t":(num_tabs>2 ? "\t\t\t":""))), \
m,PNG_STRING_NEWLINE); \
fprintf(PNG_DEBUG_FILE,format); \
} while (0)
# endif
# ifndef png_debug1
# define png_debug1(l,m,p1) \
do { \
int num_tabs=l; \
char format[256]; \
snprintf(format,256,"%s%s%s",(num_tabs==1 ? "\t" : \
(num_tabs==2 ? "\t\t":(num_tabs>2 ? "\t\t\t":""))), \
m,PNG_STRING_NEWLINE); \
fprintf(PNG_DEBUG_FILE,format,p1); \
} while (0)
# endif
# ifndef png_debug2
# define png_debug2(l,m,p1,p2) \
do { \
int num_tabs=l; \
char format[256]; \
snprintf(format,256,"%s%s%s",(num_tabs==1 ? "\t" : \
(num_tabs==2 ? "\t\t":(num_tabs>2 ? "\t\t\t":""))), \
m,PNG_STRING_NEWLINE); \
fprintf(PNG_DEBUG_FILE,format,p1,p2); \
} while (0)
# endif
# endif /* __STDC __ */
# endif /* (PNG_DEBUG > 1) */
# endif /* _MSC_VER */
# endif /* (PNG_DEBUG > 0) */
#endif /* PNG_DEBUG */
#ifndef png_debug
# define png_debug(l, m) ((void)0)
#endif
#ifndef png_debug1
# define png_debug1(l, m, p1) ((void)0)
#endif
#ifndef png_debug2
# define png_debug2(l, m, p1, p2) ((void)0)
#endif
#endif /* PNGDEBUG_H */

836
ExternalLibs/glpng/png/pngerror.c
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@ -1,160 +1,676 @@
/* pngerror.c - stub functions for i/o and memory allocation
*
* libpng 1.0.2 - June 14, 1998
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
* Copyright (c) 1996, 1997 Andreas Dilger
* Copyright (c) 1998, Glenn Randers-Pehrson
*
* This file provides a location for all error handling. Users who
* need special error handling are expected to write replacement functions
* and use png_set_error_fn() to use those functions. See the instructions
* at each function.
*/
#define PNG_INTERNAL
#include "png.h"
static void png_default_error PNGARG((png_structp png_ptr,
png_const_charp message));
static void png_default_warning PNGARG((png_structp png_ptr,
png_const_charp message));
/* This function is called whenever there is a fatal error. This function
* should not be changed. If there is a need to handle errors differently,
* you should supply a replacement error function and use png_set_error_fn()
* to replace the error function at run-time.
*/
void
png_error(png_structp png_ptr, png_const_charp message)
{
if (png_ptr->error_fn != NULL)
(*(png_ptr->error_fn))(png_ptr, message);
/* if the following returns or doesn't exist, use the default function,
which will not return */
png_default_error(png_ptr, message);
}
/* This function is called whenever there is a non-fatal error. This function
* should not be changed. If there is a need to handle warnings differently,
* you should supply a replacement warning function and use
* png_set_error_fn() to replace the warning function at run-time.
*/
void
png_warning(png_structp png_ptr, png_const_charp message)
{
if (png_ptr->warning_fn != NULL)
(*(png_ptr->warning_fn))(png_ptr, message);
else
png_default_warning(png_ptr, message);
}
/* These utilities are used internally to build an error message that relates
* to the current chunk. The chunk name comes from png_ptr->chunk_name,
* this is used to prefix the message. The message is limited in length
* to 63 bytes, the name characters are output as hex digits wrapped in []
* if the character is invalid.
*/
#define isnonalpha(c) ((c) < 41 || (c) > 122 || ((c) > 90 && (c) < 97))
static PNG_CONST char png_digit[16] = {
'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F'
};
static void
png_format_buffer(png_structp png_ptr, png_charp buffer, png_const_charp message)
{
int iout = 0, iin = 0;
while (iin < 4) {
int c = png_ptr->chunk_name[iin++];
if (isnonalpha(c)) {
buffer[iout++] = '[';
buffer[iout++] = png_digit[(c & 0xf0) >> 4];
buffer[iout++] = png_digit[c & 0xf];
buffer[iout++] = ']';
} else {
buffer[iout++] = c;
}
}
if (message == NULL)
buffer[iout] = 0;
else {
buffer[iout++] = ':';
buffer[iout++] = ' ';
png_memcpy(buffer+iout, message, 64);
buffer[iout+63] = 0;
}
}
void
png_chunk_error(png_structp png_ptr, png_const_charp message)
{
char msg[16+64];
png_format_buffer(png_ptr, msg, message);
png_error(png_ptr, msg);
}
void
png_chunk_warning(png_structp png_ptr, png_const_charp message)
{
char msg[16+64];
png_format_buffer(png_ptr, msg, message);
png_warning(png_ptr, msg);
}
/* This is the default error handling function. Note that replacements for
* this function MUST NOT RETURN, or the program will likely crash. This
* function is used by default, or if the program supplies NULL for the
* error function pointer in png_set_error_fn().
*/
static void
png_default_error(png_structp png_ptr, png_const_charp message)
{
#ifndef PNG_NO_STDIO
fprintf(stderr, "libpng error: %s\n", message);
#endif
#ifdef USE_FAR_KEYWORD
{
jmp_buf jmpbuf;
png_memcpy(jmpbuf,png_ptr->jmpbuf,sizeof(jmp_buf));
longjmp(jmpbuf, 1);
}
#else
longjmp(png_ptr->jmpbuf, 1);
#endif
}
/* This function is called when there is a warning, but the library thinks
* it can continue anyway. Replacement functions don't have to do anything
* here if you don't want them to. In the default configuration, png_ptr is
* not used, but it is passed in case it may be useful.
*/
static void
png_default_warning(png_structp png_ptr, png_const_charp message)
{
if (png_ptr == NULL)
return;
#ifndef PNG_NO_STDIO
fprintf(stderr, "libpng warning: %s\n", message);
#endif
}
/* This function is called when the application wants to use another method
* of handling errors and warnings. Note that the error function MUST NOT
* return to the calling routine or serious problems will occur. The return
* method used in the default routine calls longjmp(png_ptr->jmpbuf, 1)
*/
void
png_set_error_fn(png_structp png_ptr, png_voidp error_ptr,
png_error_ptr error_fn, png_error_ptr warning_fn)
{
png_ptr->error_ptr = error_ptr;
png_ptr->error_fn = error_fn;
png_ptr->warning_fn = warning_fn;
}
/* pngerror.c - stub functions for i/o and memory allocation
*
* Last changed in libpng 1.5.7 [December 15, 2011]
* Copyright (c) 1998-2011 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
*
* This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer
* and license in png.h
*
* This file provides a location for all error handling. Users who
* need special error handling are expected to write replacement functions
* and use png_set_error_fn() to use those functions. See the instructions
* at each function.
*/
#include "pngpriv.h"
#if defined(PNG_READ_SUPPORTED) || defined(PNG_WRITE_SUPPORTED)
static PNG_FUNCTION(void, png_default_error,PNGARG((png_structp png_ptr,
png_const_charp error_message)),PNG_NORETURN);
#ifdef PNG_WARNINGS_SUPPORTED
static void /* PRIVATE */
png_default_warning PNGARG((png_structp png_ptr,
png_const_charp warning_message));
#endif /* PNG_WARNINGS_SUPPORTED */
/* This function is called whenever there is a fatal error. This function
* should not be changed. If there is a need to handle errors differently,
* you should supply a replacement error function and use png_set_error_fn()
* to replace the error function at run-time.
*/
#ifdef PNG_ERROR_TEXT_SUPPORTED
PNG_FUNCTION(void,PNGAPI
png_error,(png_structp png_ptr, png_const_charp error_message),PNG_NORETURN)
{
#ifdef PNG_ERROR_NUMBERS_SUPPORTED
char msg[16];
if (png_ptr != NULL)
{
if (png_ptr->flags&
(PNG_FLAG_STRIP_ERROR_NUMBERS|PNG_FLAG_STRIP_ERROR_TEXT))
{
if (*error_message == PNG_LITERAL_SHARP)
{
/* Strip "#nnnn " from beginning of error message. */
int offset;
for (offset = 1; offset<15; offset++)
if (error_message[offset] == ' ')
break;
if (png_ptr->flags&PNG_FLAG_STRIP_ERROR_TEXT)
{
int i;
for (i = 0; i < offset - 1; i++)
msg[i] = error_message[i + 1];
msg[i - 1] = '\0';
error_message = msg;
}
else
error_message += offset;
}
else
{
if (png_ptr->flags&PNG_FLAG_STRIP_ERROR_TEXT)
{
msg[0] = '0';
msg[1] = '\0';
error_message = msg;
}
}
}
}
#endif
if (png_ptr != NULL && png_ptr->error_fn != NULL)
(*(png_ptr->error_fn))(png_ptr, error_message);
/* If the custom handler doesn't exist, or if it returns,
use the default handler, which will not return. */
png_default_error(png_ptr, error_message);
}
#else
PNG_FUNCTION(void,PNGAPI
png_err,(png_structp png_ptr),PNG_NORETURN)
{
/* Prior to 1.5.2 the error_fn received a NULL pointer, expressed
* erroneously as '\0', instead of the empty string "". This was
* apparently an error, introduced in libpng-1.2.20, and png_default_error
* will crash in this case.
*/
if (png_ptr != NULL && png_ptr->error_fn != NULL)
(*(png_ptr->error_fn))(png_ptr, "");
/* If the custom handler doesn't exist, or if it returns,
use the default handler, which will not return. */
png_default_error(png_ptr, "");
}
#endif /* PNG_ERROR_TEXT_SUPPORTED */
/* Utility to safely appends strings to a buffer. This never errors out so
* error checking is not required in the caller.
*/
size_t
png_safecat(png_charp buffer, size_t bufsize, size_t pos,
png_const_charp string)
{
if (buffer != NULL && pos < bufsize)
{
if (string != NULL)
while (*string != '\0' && pos < bufsize-1)
buffer[pos++] = *string++;
buffer[pos] = '\0';
}
return pos;
}
#if defined(PNG_WARNINGS_SUPPORTED) || defined(PNG_TIME_RFC1123_SUPPORTED)
/* Utility to dump an unsigned value into a buffer, given a start pointer and
* and end pointer (which should point just *beyond* the end of the buffer!)
* Returns the pointer to the start of the formatted string.
*/
png_charp
png_format_number(png_const_charp start, png_charp end, int format,
png_alloc_size_t number)
{
int count = 0; /* number of digits output */
int mincount = 1; /* minimum number required */
int output = 0; /* digit output (for the fixed point format) */
*--end = '\0';
/* This is written so that the loop always runs at least once, even with
* number zero.
*/
while (end > start && (number != 0 || count < mincount))
{
static const char digits[] = "0123456789ABCDEF";
switch (format)
{
case PNG_NUMBER_FORMAT_fixed:
/* Needs five digits (the fraction) */
mincount = 5;
if (output || number % 10 != 0)
{
*--end = digits[number % 10];
output = 1;
}
number /= 10;
break;
case PNG_NUMBER_FORMAT_02u:
/* Expects at least 2 digits. */
mincount = 2;
/* fall through */
case PNG_NUMBER_FORMAT_u:
*--end = digits[number % 10];
number /= 10;
break;
case PNG_NUMBER_FORMAT_02x:
/* This format expects at least two digits */
mincount = 2;
/* fall through */
case PNG_NUMBER_FORMAT_x:
*--end = digits[number & 0xf];
number >>= 4;
break;
default: /* an error */
number = 0;
break;
}
/* Keep track of the number of digits added */
++count;
/* Float a fixed number here: */
if (format == PNG_NUMBER_FORMAT_fixed) if (count == 5) if (end > start)
{
/* End of the fraction, but maybe nothing was output? In that case
* drop the decimal point. If the number is a true zero handle that
* here.
*/
if (output)
*--end = '.';
else if (number == 0) /* and !output */
*--end = '0';
}
}
return end;
}
#endif
#ifdef PNG_WARNINGS_SUPPORTED
/* This function is called whenever there is a non-fatal error. This function
* should not be changed. If there is a need to handle warnings differently,
* you should supply a replacement warning function and use
* png_set_error_fn() to replace the warning function at run-time.
*/
void PNGAPI
png_warning(png_structp png_ptr, png_const_charp warning_message)
{
int offset = 0;
if (png_ptr != NULL)
{
#ifdef PNG_ERROR_NUMBERS_SUPPORTED
if (png_ptr->flags&
(PNG_FLAG_STRIP_ERROR_NUMBERS|PNG_FLAG_STRIP_ERROR_TEXT))
#endif
{
if (*warning_message == PNG_LITERAL_SHARP)
{
for (offset = 1; offset < 15; offset++)
if (warning_message[offset] == ' ')
break;
}
}
}
if (png_ptr != NULL && png_ptr->warning_fn != NULL)
(*(png_ptr->warning_fn))(png_ptr, warning_message + offset);
else
png_default_warning(png_ptr, warning_message + offset);
}
/* These functions support 'formatted' warning messages with up to
* PNG_WARNING_PARAMETER_COUNT parameters. In the format string the parameter
* is introduced by @<number>, where 'number' starts at 1. This follows the
* standard established by X/Open for internationalizable error messages.
*/
void
png_warning_parameter(png_warning_parameters p, int number,
png_const_charp string)
{
if (number > 0 && number <= PNG_WARNING_PARAMETER_COUNT)
(void)png_safecat(p[number-1], (sizeof p[number-1]), 0, string);
}
void
png_warning_parameter_unsigned(png_warning_parameters p, int number, int format,
png_alloc_size_t value)
{
char buffer[PNG_NUMBER_BUFFER_SIZE];
png_warning_parameter(p, number, PNG_FORMAT_NUMBER(buffer, format, value));
}
void
png_warning_parameter_signed(png_warning_parameters p, int number, int format,
png_int_32 value)
{
png_alloc_size_t u;
png_charp str;
char buffer[PNG_NUMBER_BUFFER_SIZE];
/* Avoid overflow by doing the negate in a png_alloc_size_t: */
u = (png_alloc_size_t)value;
if (value < 0)
u = ~u + 1;
str = PNG_FORMAT_NUMBER(buffer, format, u);
if (value < 0 && str > buffer)
*--str = '-';
png_warning_parameter(p, number, str);
}
void
png_formatted_warning(png_structp png_ptr, png_warning_parameters p,
png_const_charp message)
{
/* The internal buffer is just 128 bytes - enough for all our messages,
* overflow doesn't happen because this code checks!
*/
size_t i;
char msg[128];
for (i=0; i<(sizeof msg)-1 && *message != '\0'; ++i)
{
if (*message == '@')
{
int parameter = -1;
switch (*++message)
{
case '1':
parameter = 0;
break;
case '2':
parameter = 1;
break;
case '\0':
continue; /* To break out of the for loop above. */
default:
break;
}
if (parameter >= 0 && parameter < PNG_WARNING_PARAMETER_COUNT)
{
/* Append this parameter */
png_const_charp parm = p[parameter];
png_const_charp pend = p[parameter] + (sizeof p[parameter]);
/* No need to copy the trailing '\0' here, but there is no guarantee
* that parm[] has been initialized, so there is no guarantee of a
* trailing '\0':
*/
for (; i<(sizeof msg)-1 && parm != '\0' && parm < pend; ++i)
msg[i] = *parm++;
++message;
continue;
}
/* else not a parameter and there is a character after the @ sign; just
* copy that.
*/
}
/* At this point *message can't be '\0', even in the bad parameter case
* above where there is a lone '@' at the end of the message string.
*/
msg[i] = *message++;
}
/* i is always less than (sizeof msg), so: */
msg[i] = '\0';
/* And this is the formatted message: */
png_warning(png_ptr, msg);
}
#endif /* PNG_WARNINGS_SUPPORTED */
#ifdef PNG_BENIGN_ERRORS_SUPPORTED
void PNGAPI
png_benign_error(png_structp png_ptr, png_const_charp error_message)
{
if (png_ptr->flags & PNG_FLAG_BENIGN_ERRORS_WARN)
png_warning(png_ptr, error_message);
else
png_error(png_ptr, error_message);
}
#endif
/* These utilities are used internally to build an error message that relates
* to the current chunk. The chunk name comes from png_ptr->chunk_name,
* this is used to prefix the message. The message is limited in length
* to 63 bytes, the name characters are output as hex digits wrapped in []
* if the character is invalid.
*/
#define isnonalpha(c) ((c) < 65 || (c) > 122 || ((c) > 90 && (c) < 97))
static PNG_CONST char png_digit[16] = {
'0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
'A', 'B', 'C', 'D', 'E', 'F'
};
#define PNG_MAX_ERROR_TEXT 64
#if defined(PNG_WARNINGS_SUPPORTED) || defined(PNG_ERROR_TEXT_SUPPORTED)
static void /* PRIVATE */
png_format_buffer(png_structp png_ptr, png_charp buffer, png_const_charp
error_message)
{
png_uint_32 chunk_name = png_ptr->chunk_name;
int iout = 0, ishift = 24;
while (ishift >= 0)
{
int c = (int)(chunk_name >> ishift) & 0xff;
ishift -= 8;
if (isnonalpha(c))
{
buffer[iout++] = PNG_LITERAL_LEFT_SQUARE_BRACKET;
buffer[iout++] = png_digit[(c & 0xf0) >> 4];
buffer[iout++] = png_digit[c & 0x0f];
buffer[iout++] = PNG_LITERAL_RIGHT_SQUARE_BRACKET;
}
else
{
buffer[iout++] = (char)c;
}
}
if (error_message == NULL)
buffer[iout] = '\0';
else
{
int iin = 0;
buffer[iout++] = ':';
buffer[iout++] = ' ';
while (iin < PNG_MAX_ERROR_TEXT-1 && error_message[iin] != '\0')
buffer[iout++] = error_message[iin++];
/* iin < PNG_MAX_ERROR_TEXT, so the following is safe: */
buffer[iout] = '\0';
}
}
#endif /* PNG_WARNINGS_SUPPORTED || PNG_ERROR_TEXT_SUPPORTED */
#if defined(PNG_READ_SUPPORTED) && defined(PNG_ERROR_TEXT_SUPPORTED)
PNG_FUNCTION(void,PNGAPI
png_chunk_error,(png_structp png_ptr, png_const_charp error_message),
PNG_NORETURN)
{
char msg[18+PNG_MAX_ERROR_TEXT];
if (png_ptr == NULL)
png_error(png_ptr, error_message);
else
{
png_format_buffer(png_ptr, msg, error_message);
png_error(png_ptr, msg);
}
}
#endif /* PNG_READ_SUPPORTED && PNG_ERROR_TEXT_SUPPORTED */
#ifdef PNG_WARNINGS_SUPPORTED
void PNGAPI
png_chunk_warning(png_structp png_ptr, png_const_charp warning_message)
{
char msg[18+PNG_MAX_ERROR_TEXT];
if (png_ptr == NULL)
png_warning(png_ptr, warning_message);
else
{
png_format_buffer(png_ptr, msg, warning_message);
png_warning(png_ptr, msg);
}
}
#endif /* PNG_WARNINGS_SUPPORTED */
#ifdef PNG_READ_SUPPORTED
#ifdef PNG_BENIGN_ERRORS_SUPPORTED
void PNGAPI
png_chunk_benign_error(png_structp png_ptr, png_const_charp error_message)
{
if (png_ptr->flags & PNG_FLAG_BENIGN_ERRORS_WARN)
png_chunk_warning(png_ptr, error_message);
else
png_chunk_error(png_ptr, error_message);
}
#endif
#endif /* PNG_READ_SUPPORTED */
#ifdef PNG_ERROR_TEXT_SUPPORTED
#ifdef PNG_FLOATING_POINT_SUPPORTED
PNG_FUNCTION(void,
png_fixed_error,(png_structp png_ptr, png_const_charp name),PNG_NORETURN)
{
# define fixed_message "fixed point overflow in "
# define fixed_message_ln ((sizeof fixed_message)-1)
int iin;
char msg[fixed_message_ln+PNG_MAX_ERROR_TEXT];
png_memcpy(msg, fixed_message, fixed_message_ln);
iin = 0;
if (name != NULL) while (iin < (PNG_MAX_ERROR_TEXT-1) && name[iin] != 0)
{
msg[fixed_message_ln + iin] = name[iin];
++iin;
}
msg[fixed_message_ln + iin] = 0;
png_error(png_ptr, msg);
}
#endif
#endif
#ifdef PNG_SETJMP_SUPPORTED
/* This API only exists if ANSI-C style error handling is used,
* otherwise it is necessary for png_default_error to be overridden.
*/
jmp_buf* PNGAPI
png_set_longjmp_fn(png_structp png_ptr, png_longjmp_ptr longjmp_fn,
size_t jmp_buf_size)
{
if (png_ptr == NULL || jmp_buf_size != png_sizeof(jmp_buf))
return NULL;
png_ptr->longjmp_fn = longjmp_fn;
return &png_ptr->longjmp_buffer;
}
#endif
/* This is the default error handling function. Note that replacements for
* this function MUST NOT RETURN, or the program will likely crash. This
* function is used by default, or if the program supplies NULL for the
* error function pointer in png_set_error_fn().
*/
static PNG_FUNCTION(void /* PRIVATE */,
png_default_error,(png_structp png_ptr, png_const_charp error_message),
PNG_NORETURN)
{
#ifdef PNG_CONSOLE_IO_SUPPORTED
#ifdef PNG_ERROR_NUMBERS_SUPPORTED
/* Check on NULL only added in 1.5.4 */
if (error_message != NULL && *error_message == PNG_LITERAL_SHARP)
{
/* Strip "#nnnn " from beginning of error message. */
int offset;
char error_number[16];
for (offset = 0; offset<15; offset++)
{
error_number[offset] = error_message[offset + 1];
if (error_message[offset] == ' ')
break;
}
if ((offset > 1) && (offset < 15))
{
error_number[offset - 1] = '\0';
fprintf(stderr, "libpng error no. %s: %s",
error_number, error_message + offset + 1);
fprintf(stderr, PNG_STRING_NEWLINE);
}
else
{
fprintf(stderr, "libpng error: %s, offset=%d",
error_message, offset);
fprintf(stderr, PNG_STRING_NEWLINE);
}
}
else
#endif
{
fprintf(stderr, "libpng error: %s", error_message ? error_message :
"undefined");
fprintf(stderr, PNG_STRING_NEWLINE);
}
#else
PNG_UNUSED(error_message) /* Make compiler happy */
#endif
png_longjmp(png_ptr, 1);
}
PNG_FUNCTION(void,PNGAPI
png_longjmp,(png_structp png_ptr, int val),PNG_NORETURN)
{
#ifdef PNG_SETJMP_SUPPORTED
if (png_ptr && png_ptr->longjmp_fn)
{
# ifdef USE_FAR_KEYWORD
{
jmp_buf tmp_jmpbuf;
png_memcpy(tmp_jmpbuf, png_ptr->longjmp_buffer, png_sizeof(jmp_buf));
png_ptr->longjmp_fn(tmp_jmpbuf, val);
}
# else
png_ptr->longjmp_fn(png_ptr->longjmp_buffer, val);
# endif
}
#endif
/* Here if not setjmp support or if png_ptr is null. */
PNG_ABORT();
}
#ifdef PNG_WARNINGS_SUPPORTED
/* This function is called when there is a warning, but the library thinks
* it can continue anyway. Replacement functions don't have to do anything
* here if you don't want them to. In the default configuration, png_ptr is
* not used, but it is passed in case it may be useful.
*/
static void /* PRIVATE */
png_default_warning(png_structp png_ptr, png_const_charp warning_message)
{
#ifdef PNG_CONSOLE_IO_SUPPORTED
# ifdef PNG_ERROR_NUMBERS_SUPPORTED
if (*warning_message == PNG_LITERAL_SHARP)
{
int offset;
char warning_number[16];
for (offset = 0; offset < 15; offset++)
{
warning_number[offset] = warning_message[offset + 1];
if (warning_message[offset] == ' ')
break;
}
if ((offset > 1) && (offset < 15))
{
warning_number[offset + 1] = '\0';
fprintf(stderr, "libpng warning no. %s: %s",
warning_number, warning_message + offset);
fprintf(stderr, PNG_STRING_NEWLINE);
}
else
{
fprintf(stderr, "libpng warning: %s",
warning_message);
fprintf(stderr, PNG_STRING_NEWLINE);
}
}
else
# endif
{
fprintf(stderr, "libpng warning: %s", warning_message);
fprintf(stderr, PNG_STRING_NEWLINE);
}
#else
PNG_UNUSED(warning_message) /* Make compiler happy */
#endif
PNG_UNUSED(png_ptr) /* Make compiler happy */
}
#endif /* PNG_WARNINGS_SUPPORTED */
/* This function is called when the application wants to use another method
* of handling errors and warnings. Note that the error function MUST NOT
* return to the calling routine or serious problems will occur. The return
* method used in the default routine calls longjmp(png_ptr->longjmp_buffer, 1)
*/
void PNGAPI
png_set_error_fn(png_structp png_ptr, png_voidp error_ptr,
png_error_ptr error_fn, png_error_ptr warning_fn)
{
if (png_ptr == NULL)
return;
png_ptr->error_ptr = error_ptr;
png_ptr->error_fn = error_fn;
#ifdef PNG_WARNINGS_SUPPORTED
png_ptr->warning_fn = warning_fn;
#else
PNG_UNUSED(warning_fn)
#endif
}
/* This function returns a pointer to the error_ptr associated with the user
* functions. The application should free any memory associated with this
* pointer before png_write_destroy and png_read_destroy are called.
*/
png_voidp PNGAPI
png_get_error_ptr(png_const_structp png_ptr)
{
if (png_ptr == NULL)
return NULL;
return ((png_voidp)png_ptr->error_ptr);
}
#ifdef PNG_ERROR_NUMBERS_SUPPORTED
void PNGAPI
png_set_strip_error_numbers(png_structp png_ptr, png_uint_32 strip_mode)
{
if (png_ptr != NULL)
{
png_ptr->flags &=
((~(PNG_FLAG_STRIP_ERROR_NUMBERS |
PNG_FLAG_STRIP_ERROR_TEXT))&strip_mode);
}
}
#endif
#endif /* PNG_READ_SUPPORTED || PNG_WRITE_SUPPORTED */

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ExternalLibs/glpng/png/pngget.c
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/* pnginfo.h - header file for PNG reference library
*
* Copyright (c) 1998-2011 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
*
* Last changed in libpng 1.5.0 [January 6, 2011]
*
* This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer
* and license in png.h
*/
/* png_info is a structure that holds the information in a PNG file so
* that the application can find out the characteristics of the image.
* If you are reading the file, this structure will tell you what is
* in the PNG file. If you are writing the file, fill in the information
* you want to put into the PNG file, using png_set_*() functions, then
* call png_write_info().
*
* The names chosen should be very close to the PNG specification, so
* consult that document for information about the meaning of each field.
*
* With libpng < 0.95, it was only possible to directly set and read the
* the values in the png_info_struct, which meant that the contents and
* order of the values had to remain fixed. With libpng 0.95 and later,
* however, there are now functions that abstract the contents of
* png_info_struct from the application, so this makes it easier to use
* libpng with dynamic libraries, and even makes it possible to use
* libraries that don't have all of the libpng ancillary chunk-handing
* functionality. In libpng-1.5.0 this was moved into a separate private
* file that is not visible to applications.
*
* The following members may have allocated storage attached that should be
* cleaned up before the structure is discarded: palette, trans, text,
* pcal_purpose, pcal_units, pcal_params, hist, iccp_name, iccp_profile,
* splt_palettes, scal_unit, row_pointers, and unknowns. By default, these
* are automatically freed when the info structure is deallocated, if they were
* allocated internally by libpng. This behavior can be changed by means
* of the png_data_freer() function.
*
* More allocation details: all the chunk-reading functions that
* change these members go through the corresponding png_set_*
* functions. A function to clear these members is available: see
* png_free_data(). The png_set_* functions do not depend on being
* able to point info structure members to any of the storage they are
* passed (they make their own copies), EXCEPT that the png_set_text
* functions use the same storage passed to them in the text_ptr or
* itxt_ptr structure argument, and the png_set_rows and png_set_unknowns
* functions do not make their own copies.
*/
#ifndef PNGINFO_H
#define PNGINFO_H
struct png_info_def
{
/* the following are necessary for every PNG file */
png_uint_32 width; /* width of image in pixels (from IHDR) */
png_uint_32 height; /* height of image in pixels (from IHDR) */
png_uint_32 valid; /* valid chunk data (see PNG_INFO_ below) */
png_size_t rowbytes; /* bytes needed to hold an untransformed row */
png_colorp palette; /* array of color values (valid & PNG_INFO_PLTE) */
png_uint_16 num_palette; /* number of color entries in "palette" (PLTE) */
png_uint_16 num_trans; /* number of transparent palette color (tRNS) */
png_byte bit_depth; /* 1, 2, 4, 8, or 16 bits/channel (from IHDR) */
png_byte color_type; /* see PNG_COLOR_TYPE_ below (from IHDR) */
/* The following three should have been named *_method not *_type */
png_byte compression_type; /* must be PNG_COMPRESSION_TYPE_BASE (IHDR) */
png_byte filter_type; /* must be PNG_FILTER_TYPE_BASE (from IHDR) */
png_byte interlace_type; /* One of PNG_INTERLACE_NONE, PNG_INTERLACE_ADAM7 */
/* The following is informational only on read, and not used on writes. */
png_byte channels; /* number of data channels per pixel (1, 2, 3, 4) */
png_byte pixel_depth; /* number of bits per pixel */
png_byte spare_byte; /* to align the data, and for future use */
png_byte signature[8]; /* magic bytes read by libpng from start of file */
/* The rest of the data is optional. If you are reading, check the
* valid field to see if the information in these are valid. If you
* are writing, set the valid field to those chunks you want written,
* and initialize the appropriate fields below.
*/
#if defined(PNG_gAMA_SUPPORTED)
/* The gAMA chunk describes the gamma characteristics of the system
* on which the image was created, normally in the range [1.0, 2.5].
* Data is valid if (valid & PNG_INFO_gAMA) is non-zero.
*/
png_fixed_point gamma;
#endif
#ifdef PNG_sRGB_SUPPORTED
/* GR-P, 0.96a */
/* Data valid if (valid & PNG_INFO_sRGB) non-zero. */
png_byte srgb_intent; /* sRGB rendering intent [0, 1, 2, or 3] */
#endif
#ifdef PNG_TEXT_SUPPORTED
/* The tEXt, and zTXt chunks contain human-readable textual data in
* uncompressed, compressed, and optionally compressed forms, respectively.
* The data in "text" is an array of pointers to uncompressed,
* null-terminated C strings. Each chunk has a keyword that describes the
* textual data contained in that chunk. Keywords are not required to be
* unique, and the text string may be empty. Any number of text chunks may
* be in an image.
*/
int num_text; /* number of comments read or comments to write */
int max_text; /* current size of text array */
png_textp text; /* array of comments read or comments to write */
#endif /* PNG_TEXT_SUPPORTED */
#ifdef PNG_tIME_SUPPORTED
/* The tIME chunk holds the last time the displayed image data was
* modified. See the png_time struct for the contents of this struct.
*/
png_time mod_time;
#endif
#ifdef PNG_sBIT_SUPPORTED
/* The sBIT chunk specifies the number of significant high-order bits
* in the pixel data. Values are in the range [1, bit_depth], and are
* only specified for the channels in the pixel data. The contents of
* the low-order bits is not specified. Data is valid if
* (valid & PNG_INFO_sBIT) is non-zero.
*/
png_color_8 sig_bit; /* significant bits in color channels */
#endif
#if defined(PNG_tRNS_SUPPORTED) || defined(PNG_READ_EXPAND_SUPPORTED) || \
defined(PNG_READ_BACKGROUND_SUPPORTED)
/* The tRNS chunk supplies transparency data for paletted images and
* other image types that don't need a full alpha channel. There are
* "num_trans" transparency values for a paletted image, stored in the
* same order as the palette colors, starting from index 0. Values
* for the data are in the range [0, 255], ranging from fully transparent
* to fully opaque, respectively. For non-paletted images, there is a
* single color specified that should be treated as fully transparent.
* Data is valid if (valid & PNG_INFO_tRNS) is non-zero.
*/
png_bytep trans_alpha; /* alpha values for paletted image */
png_color_16 trans_color; /* transparent color for non-palette image */
#endif
#if defined(PNG_bKGD_SUPPORTED) || defined(PNG_READ_BACKGROUND_SUPPORTED)
/* The bKGD chunk gives the suggested image background color if the
* display program does not have its own background color and the image
* is needs to composited onto a background before display. The colors
* in "background" are normally in the same color space/depth as the
* pixel data. Data is valid if (valid & PNG_INFO_bKGD) is non-zero.
*/
png_color_16 background;
#endif
#ifdef PNG_oFFs_SUPPORTED
/* The oFFs chunk gives the offset in "offset_unit_type" units rightwards
* and downwards from the top-left corner of the display, page, or other
* application-specific co-ordinate space. See the PNG_OFFSET_ defines
* below for the unit types. Valid if (valid & PNG_INFO_oFFs) non-zero.
*/
png_int_32 x_offset; /* x offset on page */
png_int_32 y_offset; /* y offset on page */
png_byte offset_unit_type; /* offset units type */
#endif
#ifdef PNG_pHYs_SUPPORTED
/* The pHYs chunk gives the physical pixel density of the image for
* display or printing in "phys_unit_type" units (see PNG_RESOLUTION_
* defines below). Data is valid if (valid & PNG_INFO_pHYs) is non-zero.
*/
png_uint_32 x_pixels_per_unit; /* horizontal pixel density */
png_uint_32 y_pixels_per_unit; /* vertical pixel density */
png_byte phys_unit_type; /* resolution type (see PNG_RESOLUTION_ below) */
#endif
#ifdef PNG_hIST_SUPPORTED
/* The hIST chunk contains the relative frequency or importance of the
* various palette entries, so that a viewer can intelligently select a
* reduced-color palette, if required. Data is an array of "num_palette"
* values in the range [0,65535]. Data valid if (valid & PNG_INFO_hIST)
* is non-zero.
*/
png_uint_16p hist;
#endif
#ifdef PNG_cHRM_SUPPORTED
/* The cHRM chunk describes the CIE color characteristics of the monitor
* on which the PNG was created. This data allows the viewer to do gamut
* mapping of the input image to ensure that the viewer sees the same
* colors in the image as the creator. Values are in the range
* [0.0, 0.8]. Data valid if (valid & PNG_INFO_cHRM) non-zero.
*/
png_fixed_point x_white;
png_fixed_point y_white;
png_fixed_point x_red;
png_fixed_point y_red;
png_fixed_point x_green;
png_fixed_point y_green;
png_fixed_point x_blue;
png_fixed_point y_blue;
#endif
#ifdef PNG_pCAL_SUPPORTED
/* The pCAL chunk describes a transformation between the stored pixel
* values and original physical data values used to create the image.
* The integer range [0, 2^bit_depth - 1] maps to the floating-point
* range given by [pcal_X0, pcal_X1], and are further transformed by a
* (possibly non-linear) transformation function given by "pcal_type"
* and "pcal_params" into "pcal_units". Please see the PNG_EQUATION_
* defines below, and the PNG-Group's PNG extensions document for a
* complete description of the transformations and how they should be
* implemented, and for a description of the ASCII parameter strings.
* Data values are valid if (valid & PNG_INFO_pCAL) non-zero.
*/
png_charp pcal_purpose; /* pCAL chunk description string */
png_int_32 pcal_X0; /* minimum value */
png_int_32 pcal_X1; /* maximum value */
png_charp pcal_units; /* Latin-1 string giving physical units */
png_charpp pcal_params; /* ASCII strings containing parameter values */
png_byte pcal_type; /* equation type (see PNG_EQUATION_ below) */
png_byte pcal_nparams; /* number of parameters given in pcal_params */
#endif
/* New members added in libpng-1.0.6 */
png_uint_32 free_me; /* flags items libpng is responsible for freeing */
#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) || \
defined(PNG_HANDLE_AS_UNKNOWN_SUPPORTED)
/* Storage for unknown chunks that the library doesn't recognize. */
png_unknown_chunkp unknown_chunks;
int unknown_chunks_num;
#endif
#ifdef PNG_iCCP_SUPPORTED
/* iCCP chunk data. */
png_charp iccp_name; /* profile name */
png_bytep iccp_profile; /* International Color Consortium profile data */
png_uint_32 iccp_proflen; /* ICC profile data length */
png_byte iccp_compression; /* Always zero */
#endif
#ifdef PNG_sPLT_SUPPORTED
/* Data on sPLT chunks (there may be more than one). */
png_sPLT_tp splt_palettes;
png_uint_32 splt_palettes_num;
#endif
#ifdef PNG_sCAL_SUPPORTED
/* The sCAL chunk describes the actual physical dimensions of the
* subject matter of the graphic. The chunk contains a unit specification
* a byte value, and two ASCII strings representing floating-point
* values. The values are width and height corresponsing to one pixel
* in the image. Data values are valid if (valid & PNG_INFO_sCAL) is
* non-zero.
*/
png_byte scal_unit; /* unit of physical scale */
png_charp scal_s_width; /* string containing height */
png_charp scal_s_height; /* string containing width */
#endif
#ifdef PNG_INFO_IMAGE_SUPPORTED
/* Memory has been allocated if (valid & PNG_ALLOCATED_INFO_ROWS)
non-zero */
/* Data valid if (valid & PNG_INFO_IDAT) non-zero */
png_bytepp row_pointers; /* the image bits */
#endif
};
#endif /* PNGINFO_H */

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/* libpng STANDARD API DEFINITION */
/* pnglibconf.h - library build configuration */
/* Libpng 1.5.7 - December 15, 2011 */
/* Copyright (c) 1998-2011 Glenn Randers-Pehrson */
/* This code is released under the libpng license. */
/* For conditions of distribution and use, see the disclaimer */
/* and license in png.h */
/* pnglibconf.h */
/* Derived from: scripts/pnglibconf.dfa */
/* If you edit this file by hand you must obey the rules expressed in */
/* pnglibconf.dfa with respect to the dependencies between the following */
/* symbols. It is much better to generate a new file using */
/* scripts/libpngconf.mak */
#ifndef PNGLCONF_H
#define PNGLCONF_H
/* settings */
#define PNG_API_RULE 0
#define PNG_CALLOC_SUPPORTED
#define PNG_COST_SHIFT 3
#define PNG_DEFAULT_READ_MACROS 1
#define PNG_GAMMA_THRESHOLD_FIXED 5000
#define PNG_MAX_GAMMA_8 11
#define PNG_QUANTIZE_BLUE_BITS 5
#define PNG_QUANTIZE_GREEN_BITS 5
#define PNG_QUANTIZE_RED_BITS 5
#define PNG_sCAL_PRECISION 5
#define PNG_USER_CHUNK_CACHE_MAX 0
#define PNG_USER_CHUNK_MALLOC_MAX 0
#define PNG_USER_HEIGHT_MAX 1000000
#define PNG_USER_WIDTH_MAX 1000000
#define PNG_WEIGHT_SHIFT 8
#define PNG_ZBUF_SIZE 8192
/* end of settings */
/* options */
#define PNG_16BIT_SUPPORTED
#define PNG_ALIGN_MEMORY_SUPPORTED
#define PNG_BENIGN_ERRORS_SUPPORTED
#define PNG_bKGD_SUPPORTED
#define PNG_BUILD_GRAYSCALE_PALETTE_SUPPORTED
#define PNG_CHECK_cHRM_SUPPORTED
#define PNG_cHRM_SUPPORTED
#define PNG_CONSOLE_IO_SUPPORTED
#define PNG_CONVERT_tIME_SUPPORTED
#define PNG_EASY_ACCESS_SUPPORTED
/*#undef PNG_ERROR_NUMBERS_SUPPORTED*/
#define PNG_ERROR_TEXT_SUPPORTED
#define PNG_FIXED_POINT_SUPPORTED
#define PNG_FLOATING_ARITHMETIC_SUPPORTED
#define PNG_FLOATING_POINT_SUPPORTED
#define PNG_FORMAT_AFIRST_SUPPORTED
#define PNG_FORMAT_BGR_SUPPORTED
#define PNG_gAMA_SUPPORTED
#define PNG_HANDLE_AS_UNKNOWN_SUPPORTED
#define PNG_hIST_SUPPORTED
#define PNG_iCCP_SUPPORTED
#define PNG_INCH_CONVERSIONS_SUPPORTED
#define PNG_INFO_IMAGE_SUPPORTED
#define PNG_IO_STATE_SUPPORTED
#define PNG_iTXt_SUPPORTED
#define PNG_MNG_FEATURES_SUPPORTED
#define PNG_oFFs_SUPPORTED
#define PNG_pCAL_SUPPORTED
#define PNG_pHYs_SUPPORTED
#define PNG_POINTER_INDEXING_SUPPORTED
#define PNG_PROGRESSIVE_READ_SUPPORTED
#define PNG_READ_16BIT_SUPPORTED
#define PNG_READ_ALPHA_MODE_SUPPORTED
#define PNG_READ_ANCILLARY_CHUNKS_SUPPORTED
#define PNG_READ_BACKGROUND_SUPPORTED
#define PNG_READ_BGR_SUPPORTED
#define PNG_READ_bKGD_SUPPORTED
#define PNG_READ_cHRM_SUPPORTED
#define PNG_READ_COMPOSITE_NODIV_SUPPORTED
#define PNG_READ_COMPRESSED_TEXT_SUPPORTED
#define PNG_READ_EXPAND_16_SUPPORTED
#define PNG_READ_EXPAND_SUPPORTED
#define PNG_READ_FILLER_SUPPORTED
#define PNG_READ_gAMA_SUPPORTED
#define PNG_READ_GAMMA_SUPPORTED
#define PNG_READ_GRAY_TO_RGB_SUPPORTED
#define PNG_READ_hIST_SUPPORTED
#define PNG_READ_iCCP_SUPPORTED
#define PNG_READ_INTERLACING_SUPPORTED
#define PNG_READ_INT_FUNCTIONS_SUPPORTED
#define PNG_READ_INVERT_ALPHA_SUPPORTED
#define PNG_READ_INVERT_SUPPORTED
#define PNG_READ_iTXt_SUPPORTED
#define PNG_READ_oFFs_SUPPORTED
#define PNG_READ_OPT_PLTE_SUPPORTED
#define PNG_READ_PACK_SUPPORTED
#define PNG_READ_PACKSWAP_SUPPORTED
#define PNG_READ_pCAL_SUPPORTED
#define PNG_READ_pHYs_SUPPORTED
#define PNG_READ_QUANTIZE_SUPPORTED
#define PNG_READ_RGB_TO_GRAY_SUPPORTED
#define PNG_READ_sBIT_SUPPORTED
#define PNG_READ_SCALE_16_TO_8_SUPPORTED
#define PNG_READ_sCAL_SUPPORTED
#define PNG_READ_SHIFT_SUPPORTED
#define PNG_READ_sPLT_SUPPORTED
#define PNG_READ_sRGB_SUPPORTED
#define PNG_READ_STRIP_16_TO_8_SUPPORTED
#define PNG_READ_STRIP_ALPHA_SUPPORTED
#define PNG_READ_SUPPORTED
#define PNG_READ_SWAP_ALPHA_SUPPORTED
#define PNG_READ_SWAP_SUPPORTED
#define PNG_READ_tEXt_SUPPORTED
#define PNG_READ_TEXT_SUPPORTED
#define PNG_READ_tIME_SUPPORTED
#define PNG_READ_TRANSFORMS_SUPPORTED
#define PNG_READ_tRNS_SUPPORTED
#define PNG_READ_UNKNOWN_CHUNKS_SUPPORTED
#define PNG_READ_USER_CHUNKS_SUPPORTED
#define PNG_READ_USER_TRANSFORM_SUPPORTED
#define PNG_READ_zTXt_SUPPORTED
#define PNG_SAVE_INT_32_SUPPORTED
#define PNG_sBIT_SUPPORTED
#define PNG_sCAL_SUPPORTED
#define PNG_SEQUENTIAL_READ_SUPPORTED
#define PNG_SET_CHUNK_CACHE_LIMIT_SUPPORTED
#define PNG_SET_CHUNK_MALLOC_LIMIT_SUPPORTED
#define PNG_SETJMP_SUPPORTED
#define PNG_SET_USER_LIMITS_SUPPORTED
#define PNG_sPLT_SUPPORTED
#define PNG_sRGB_SUPPORTED
#define PNG_STDIO_SUPPORTED
#define PNG_tEXt_SUPPORTED
#define PNG_TEXT_SUPPORTED
#define PNG_TIME_RFC1123_SUPPORTED
#define PNG_tIME_SUPPORTED
#define PNG_tRNS_SUPPORTED
#define PNG_UNKNOWN_CHUNKS_SUPPORTED
#define PNG_USER_CHUNKS_SUPPORTED
#define PNG_USER_LIMITS_SUPPORTED
#define PNG_USER_MEM_SUPPORTED
#define PNG_USER_TRANSFORM_INFO_SUPPORTED
#define PNG_USER_TRANSFORM_PTR_SUPPORTED
#define PNG_WARNINGS_SUPPORTED
#define PNG_WRITE_16BIT_SUPPORTED
#define PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED
#define PNG_WRITE_BGR_SUPPORTED
#define PNG_WRITE_bKGD_SUPPORTED
#define PNG_WRITE_cHRM_SUPPORTED
#define PNG_WRITE_COMPRESSED_TEXT_SUPPORTED
#define PNG_WRITE_CUSTOMIZE_ZTXT_COMPRESSION_SUPPORTED
#define PNG_WRITE_FILLER_SUPPORTED
#define PNG_WRITE_FILTER_SUPPORTED
#define PNG_WRITE_FLUSH_SUPPORTED
#define PNG_WRITE_gAMA_SUPPORTED
#define PNG_WRITE_hIST_SUPPORTED
#define PNG_WRITE_iCCP_SUPPORTED
#define PNG_WRITE_INTERLACING_SUPPORTED
#define PNG_WRITE_INT_FUNCTIONS_SUPPORTED
#define PNG_WRITE_INVERT_ALPHA_SUPPORTED
#define PNG_WRITE_INVERT_SUPPORTED
#define PNG_WRITE_iTXt_SUPPORTED
#define PNG_WRITE_oFFs_SUPPORTED
#define PNG_WRITE_OPTIMIZE_CMF_SUPPORTED
#define PNG_WRITE_PACK_SUPPORTED
#define PNG_WRITE_PACKSWAP_SUPPORTED
#define PNG_WRITE_pCAL_SUPPORTED
#define PNG_WRITE_pHYs_SUPPORTED
#define PNG_WRITE_sBIT_SUPPORTED
#define PNG_WRITE_sCAL_SUPPORTED
#define PNG_WRITE_SHIFT_SUPPORTED
#define PNG_WRITE_sPLT_SUPPORTED
#define PNG_WRITE_sRGB_SUPPORTED
#define PNG_WRITE_SUPPORTED
#define PNG_WRITE_SWAP_ALPHA_SUPPORTED
#define PNG_WRITE_SWAP_SUPPORTED
#define PNG_WRITE_tEXt_SUPPORTED
#define PNG_WRITE_TEXT_SUPPORTED
#define PNG_WRITE_tIME_SUPPORTED
#define PNG_WRITE_TRANSFORMS_SUPPORTED
#define PNG_WRITE_tRNS_SUPPORTED
#define PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED
#define PNG_WRITE_USER_TRANSFORM_SUPPORTED
#define PNG_WRITE_WEIGHTED_FILTER_SUPPORTED
#define PNG_WRITE_zTXt_SUPPORTED
#define PNG_zTXt_SUPPORTED
/* end of options */
#endif /* PNGLCONF_H */

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/* pngrio.c - functions for data input
*
* libpng 1.0.2 - June 14, 1998
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
* Copyright (c) 1996, 1997 Andreas Dilger
* Copyright (c) 1998, Glenn Randers-Pehrson
*
* This file provides a location for all input. Users who need
* special handling are expected to write a function that has the same
* arguments as this and performs a similar function, but that possibly
* has a different input method. Note that you shouldn't change this
* function, but rather write a replacement function and then make
* libpng use it at run time with png_set_read_fn(...).
*/
#define PNG_INTERNAL
#include "png.h"
/* Read the data from whatever input you are using. The default routine
reads from a file pointer. Note that this routine sometimes gets called
with very small lengths, so you should implement some kind of simple
buffering if you are using unbuffered reads. This should never be asked
to read more then 64K on a 16 bit machine. */
void
png_read_data(png_structp png_ptr, png_bytep data, png_size_t length)
{
png_debug1(4,"reading %d bytes\n", length);
if (png_ptr->read_data_fn != NULL)
(*(png_ptr->read_data_fn))(png_ptr, data, length);
else
png_error(png_ptr, "Call to NULL read function");
}
#if !defined(PNG_NO_STDIO)
/* This is the function that does the actual reading of data. If you are
not reading from a standard C stream, you should create a replacement
read_data function and use it at run time with png_set_read_fn(), rather
than changing the library. */
#ifndef USE_FAR_KEYWORD
static void
png_default_read_data(png_structp png_ptr, png_bytep data, png_size_t length)
{
png_size_t check;
/* fread() returns 0 on error, so it is OK to store this in a png_size_t
* instead of an int, which is what fread() actually returns.
*/
check = (png_size_t)fread(data, (png_size_t)1, length,
(FILE *)png_ptr->io_ptr);
if (check != length)
{
png_error(png_ptr, "Read Error");
}
}
#else
/* this is the model-independent version. Since the standard I/O library
can't handle far buffers in the medium and small models, we have to copy
the data.
*/
#define NEAR_BUF_SIZE 1024
#define MIN(a,b) (a <= b ? a : b)
static void
png_default_read_data(png_structp png_ptr, png_bytep data, png_size_t length)
{
int check;
png_byte *n_data;
FILE *io_ptr;
/* Check if data really is near. If so, use usual code. */
n_data = (png_byte *)CVT_PTR_NOCHECK(data);
io_ptr = (FILE *)CVT_PTR(png_ptr->io_ptr);
if ((png_bytep)n_data == data)
{
check = fread(n_data, 1, length, io_ptr);
}
else
{
png_byte buf[NEAR_BUF_SIZE];
png_size_t read, remaining, err;
check = 0;
remaining = length;
do
{
read = MIN(NEAR_BUF_SIZE, remaining);
err = fread(buf, (png_size_t)1, read, io_ptr);
png_memcpy(data, buf, read); /* copy far buffer to near buffer */
if(err != read)
break;
else
check += err;
data += read;
remaining -= read;
}
while (remaining != 0);
}
if ((png_uint_32)check != (png_uint_32)length)
{
png_error(png_ptr, "read Error");
}
}
#endif
#endif
/* This function allows the application to supply a new input function
for libpng if standard C streams aren't being used.
This function takes as its arguments:
png_ptr - pointer to a png input data structure
io_ptr - pointer to user supplied structure containing info about
the input functions. May be NULL.
read_data_fn - pointer to a new input function that takes as its
arguments a pointer to a png_struct, a pointer to
a location where input data can be stored, and a 32-bit
unsigned int that is the number of bytes to be read.
To exit and output any fatal error messages the new write
function should call png_error(png_ptr, "Error msg"). */
void
png_set_read_fn(png_structp png_ptr, png_voidp io_ptr,
png_rw_ptr read_data_fn)
{
png_ptr->io_ptr = io_ptr;
#if !defined(PNG_NO_STDIO)
if (read_data_fn != NULL)
png_ptr->read_data_fn = read_data_fn;
else
png_ptr->read_data_fn = png_default_read_data;
#else
png_ptr->read_data_fn = read_data_fn;
#endif
/* It is an error to write to a read device */
if (png_ptr->write_data_fn != NULL)
{
png_ptr->write_data_fn = NULL;
png_warning(png_ptr,
"It's an error to set both read_data_fn and write_data_fn in the ");
png_warning(png_ptr,
"same structure. Resetting write_data_fn to NULL.");
}
#if defined(PNG_WRITE_FLUSH_SUPPORTED)
png_ptr->output_flush_fn = NULL;
#endif /* PNG_WRITE_FLUSH_SUPPORTED */
}
/* pngrio.c - functions for data input
*
* Last changed in libpng 1.5.0 [January 6, 2011]
* Copyright (c) 1998-2011 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
*
* This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer
* and license in png.h
*
* This file provides a location for all input. Users who need
* special handling are expected to write a function that has the same
* arguments as this and performs a similar function, but that possibly
* has a different input method. Note that you shouldn't change this
* function, but rather write a replacement function and then make
* libpng use it at run time with png_set_read_fn(...).
*/
#include "pngpriv.h"
#ifdef PNG_READ_SUPPORTED
/* Read the data from whatever input you are using. The default routine
* reads from a file pointer. Note that this routine sometimes gets called
* with very small lengths, so you should implement some kind of simple
* buffering if you are using unbuffered reads. This should never be asked
* to read more then 64K on a 16 bit machine.
*/
void /* PRIVATE */
png_read_data(png_structp png_ptr, png_bytep data, png_size_t length)
{
png_debug1(4, "reading %d bytes", (int)length);
if (png_ptr->read_data_fn != NULL)
(*(png_ptr->read_data_fn))(png_ptr, data, length);
else
png_error(png_ptr, "Call to NULL read function");
}
#ifdef PNG_STDIO_SUPPORTED
/* This is the function that does the actual reading of data. If you are
* not reading from a standard C stream, you should create a replacement
* read_data function and use it at run time with png_set_read_fn(), rather
* than changing the library.
*/
# ifndef USE_FAR_KEYWORD
void PNGCBAPI
png_default_read_data(png_structp png_ptr, png_bytep data, png_size_t length)
{
png_size_t check;
if (png_ptr == NULL)
return;
/* fread() returns 0 on error, so it is OK to store this in a png_size_t
* instead of an int, which is what fread() actually returns.
*/
check = fread(data, 1, length, (png_FILE_p)png_ptr->io_ptr);
if (check != length)
png_error(png_ptr, "Read Error");
}
# else
/* This is the model-independent version. Since the standard I/O library
can't handle far buffers in the medium and small models, we have to copy
the data.
*/
#define NEAR_BUF_SIZE 1024
#define MIN(a,b) (a <= b ? a : b)
static void PNGCBAPI
png_default_read_data(png_structp png_ptr, png_bytep data, png_size_t length)
{
png_size_t check;
png_byte *n_data;
png_FILE_p io_ptr;
if (png_ptr == NULL)
return;
/* Check if data really is near. If so, use usual code. */
n_data = (png_byte *)CVT_PTR_NOCHECK(data);
io_ptr = (png_FILE_p)CVT_PTR(png_ptr->io_ptr);
if ((png_bytep)n_data == data)
{
check = fread(n_data, 1, length, io_ptr);
}
else
{
png_byte buf[NEAR_BUF_SIZE];
png_size_t read, remaining, err;
check = 0;
remaining = length;
do
{
read = MIN(NEAR_BUF_SIZE, remaining);
err = fread(buf, 1, read, io_ptr);
png_memcpy(data, buf, read); /* copy far buffer to near buffer */
if (err != read)
break;
else
check += err;
data += read;
remaining -= read;
}
while (remaining != 0);
}
if ((png_uint_32)check != (png_uint_32)length)
png_error(png_ptr, "read Error");
}
# endif
#endif
/* This function allows the application to supply a new input function
* for libpng if standard C streams aren't being used.
*
* This function takes as its arguments:
*
* png_ptr - pointer to a png input data structure
*
* io_ptr - pointer to user supplied structure containing info about
* the input functions. May be NULL.
*
* read_data_fn - pointer to a new input function that takes as its
* arguments a pointer to a png_struct, a pointer to
* a location where input data can be stored, and a 32-bit
* unsigned int that is the number of bytes to be read.
* To exit and output any fatal error messages the new write
* function should call png_error(png_ptr, "Error msg").
* May be NULL, in which case libpng's default function will
* be used.
*/
void PNGAPI
png_set_read_fn(png_structp png_ptr, png_voidp io_ptr,
png_rw_ptr read_data_fn)
{
if (png_ptr == NULL)
return;
png_ptr->io_ptr = io_ptr;
#ifdef PNG_STDIO_SUPPORTED
if (read_data_fn != NULL)
png_ptr->read_data_fn = read_data_fn;
else
png_ptr->read_data_fn = png_default_read_data;
#else
png_ptr->read_data_fn = read_data_fn;
#endif
/* It is an error to write to a read device */
if (png_ptr->write_data_fn != NULL)
{
png_ptr->write_data_fn = NULL;
png_warning(png_ptr,
"Can't set both read_data_fn and write_data_fn in the"
" same structure");
}
#ifdef PNG_WRITE_FLUSH_SUPPORTED
png_ptr->output_flush_fn = NULL;
#endif
}
#endif /* PNG_READ_SUPPORTED */

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/* pngstruct.h - header file for PNG reference library
*
* Copyright (c) 1998-2011 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
*
* Last changed in libpng 1.5.5 [September 22, 2011]
*
* This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer
* and license in png.h
*/
/* The structure that holds the information to read and write PNG files.
* The only people who need to care about what is inside of this are the
* people who will be modifying the library for their own special needs.
* It should NOT be accessed directly by an application.
*/
#ifndef PNGSTRUCT_H
#define PNGSTRUCT_H
/* zlib.h defines the structure z_stream, an instance of which is included
* in this structure and is required for decompressing the LZ compressed
* data in PNG files.
*/
#include "zlib.h"
struct png_struct_def
{
#ifdef PNG_SETJMP_SUPPORTED
jmp_buf longjmp_buffer; /* used in png_error */
png_longjmp_ptr longjmp_fn;/* setjmp non-local goto function. */
#endif
png_error_ptr error_fn; /* function for printing errors and aborting */
#ifdef PNG_WARNINGS_SUPPORTED
png_error_ptr warning_fn; /* function for printing warnings */
#endif
png_voidp error_ptr; /* user supplied struct for error functions */
png_rw_ptr write_data_fn; /* function for writing output data */
png_rw_ptr read_data_fn; /* function for reading input data */
png_voidp io_ptr; /* ptr to application struct for I/O functions */
#ifdef PNG_READ_USER_TRANSFORM_SUPPORTED
png_user_transform_ptr read_user_transform_fn; /* user read transform */
#endif
#ifdef PNG_WRITE_USER_TRANSFORM_SUPPORTED
png_user_transform_ptr write_user_transform_fn; /* user write transform */
#endif
/* These were added in libpng-1.0.2 */
#ifdef PNG_USER_TRANSFORM_PTR_SUPPORTED
#if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) || \
defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED)
png_voidp user_transform_ptr; /* user supplied struct for user transform */
png_byte user_transform_depth; /* bit depth of user transformed pixels */
png_byte user_transform_channels; /* channels in user transformed pixels */
#endif
#endif
png_uint_32 mode; /* tells us where we are in the PNG file */
png_uint_32 flags; /* flags indicating various things to libpng */
png_uint_32 transformations; /* which transformations to perform */
z_stream zstream; /* pointer to decompression structure (below) */
png_bytep zbuf; /* buffer for zlib */
uInt zbuf_size; /* size of zbuf (typically 65536) */
#ifdef PNG_WRITE_SUPPORTED
/* Added in 1.5.4: state to keep track of whether the zstream has been
* initialized and if so whether it is for IDAT or some other chunk.
*/
#define PNG_ZLIB_UNINITIALIZED 0
#define PNG_ZLIB_FOR_IDAT 1
#define PNG_ZLIB_FOR_TEXT 2 /* anything other than IDAT */
#define PNG_ZLIB_USE_MASK 3 /* bottom two bits */
#define PNG_ZLIB_IN_USE 4 /* a flag value */
png_uint_32 zlib_state; /* State of zlib initialization */
/* End of material added at libpng 1.5.4 */
int zlib_level; /* holds zlib compression level */
int zlib_method; /* holds zlib compression method */
int zlib_window_bits; /* holds zlib compression window bits */
int zlib_mem_level; /* holds zlib compression memory level */
int zlib_strategy; /* holds zlib compression strategy */
#endif
/* Added at libpng 1.5.4 */
#if defined(PNG_WRITE_COMPRESSED_TEXT_SUPPORTED) || \
defined(PNG_WRITE_CUSTOMIZE_ZTXT_COMPRESSION_SUPPORTED)
int zlib_text_level; /* holds zlib compression level */
int zlib_text_method; /* holds zlib compression method */
int zlib_text_window_bits; /* holds zlib compression window bits */
int zlib_text_mem_level; /* holds zlib compression memory level */
int zlib_text_strategy; /* holds zlib compression strategy */
#endif
/* End of material added at libpng 1.5.4 */
png_uint_32 width; /* width of image in pixels */
png_uint_32 height; /* height of image in pixels */
png_uint_32 num_rows; /* number of rows in current pass */
png_uint_32 usr_width; /* width of row at start of write */
png_size_t rowbytes; /* size of row in bytes */
png_uint_32 iwidth; /* width of current interlaced row in pixels */
png_uint_32 row_number; /* current row in interlace pass */
png_uint_32 chunk_name; /* PNG_CHUNK() id of current chunk */
png_bytep prev_row; /* buffer to save previous (unfiltered) row.
* This is a pointer into big_prev_row
*/
png_bytep row_buf; /* buffer to save current (unfiltered) row.
* This is a pointer into big_row_buf
*/
png_bytep sub_row; /* buffer to save "sub" row when filtering */
png_bytep up_row; /* buffer to save "up" row when filtering */
png_bytep avg_row; /* buffer to save "avg" row when filtering */
png_bytep paeth_row; /* buffer to save "Paeth" row when filtering */
png_size_t info_rowbytes; /* Added in 1.5.4: cache of updated row bytes */
png_uint_32 idat_size; /* current IDAT size for read */
png_uint_32 crc; /* current chunk CRC value */
png_colorp palette; /* palette from the input file */
png_uint_16 num_palette; /* number of color entries in palette */
png_uint_16 num_trans; /* number of transparency values */
png_byte compression; /* file compression type (always 0) */
png_byte filter; /* file filter type (always 0) */
png_byte interlaced; /* PNG_INTERLACE_NONE, PNG_INTERLACE_ADAM7 */
png_byte pass; /* current interlace pass (0 - 6) */
png_byte do_filter; /* row filter flags (see PNG_FILTER_ below ) */
png_byte color_type; /* color type of file */
png_byte bit_depth; /* bit depth of file */
png_byte usr_bit_depth; /* bit depth of users row: write only */
png_byte pixel_depth; /* number of bits per pixel */
png_byte channels; /* number of channels in file */
png_byte usr_channels; /* channels at start of write: write only */
png_byte sig_bytes; /* magic bytes read/written from start of file */
png_byte maximum_pixel_depth;
/* pixel depth used for the row buffers */
png_byte transformed_pixel_depth;
/* pixel depth after read/write transforms */
png_byte io_chunk_string[5];
/* string name of chunk */
#if defined(PNG_READ_FILLER_SUPPORTED) || defined(PNG_WRITE_FILLER_SUPPORTED)
png_uint_16 filler; /* filler bytes for pixel expansion */
#endif
#if defined(PNG_bKGD_SUPPORTED) || defined(PNG_READ_BACKGROUND_SUPPORTED) ||\
defined(PNG_READ_ALPHA_MODE_SUPPORTED)
png_byte background_gamma_type;
png_fixed_point background_gamma;
png_color_16 background; /* background color in screen gamma space */
#ifdef PNG_READ_GAMMA_SUPPORTED
png_color_16 background_1; /* background normalized to gamma 1.0 */
#endif
#endif /* PNG_bKGD_SUPPORTED */
#ifdef PNG_WRITE_FLUSH_SUPPORTED
png_flush_ptr output_flush_fn; /* Function for flushing output */
png_uint_32 flush_dist; /* how many rows apart to flush, 0 - no flush */
png_uint_32 flush_rows; /* number of rows written since last flush */
#endif
#ifdef PNG_READ_GAMMA_SUPPORTED
int gamma_shift; /* number of "insignificant" bits in 16-bit gamma */
png_fixed_point gamma; /* file gamma value */
png_fixed_point screen_gamma; /* screen gamma value (display_exponent) */
png_bytep gamma_table; /* gamma table for 8-bit depth files */
png_uint_16pp gamma_16_table; /* gamma table for 16-bit depth files */
#if defined(PNG_READ_BACKGROUND_SUPPORTED) || \
defined(PNG_READ_ALPHA_MODE_SUPPORTED) || \
defined(PNG_READ_RGB_TO_GRAY_SUPPORTED)
png_bytep gamma_from_1; /* converts from 1.0 to screen */
png_bytep gamma_to_1; /* converts from file to 1.0 */
png_uint_16pp gamma_16_from_1; /* converts from 1.0 to screen */
png_uint_16pp gamma_16_to_1; /* converts from file to 1.0 */
#endif /* READ_BACKGROUND || READ_ALPHA_MODE || RGB_TO_GRAY */
#endif
#if defined(PNG_READ_GAMMA_SUPPORTED) || defined(PNG_sBIT_SUPPORTED)
png_color_8 sig_bit; /* significant bits in each available channel */
#endif
#if defined(PNG_READ_SHIFT_SUPPORTED) || defined(PNG_WRITE_SHIFT_SUPPORTED)
png_color_8 shift; /* shift for significant bit tranformation */
#endif
#if defined(PNG_tRNS_SUPPORTED) || defined(PNG_READ_BACKGROUND_SUPPORTED) \
|| defined(PNG_READ_EXPAND_SUPPORTED) || defined(PNG_READ_BACKGROUND_SUPPORTED)
png_bytep trans_alpha; /* alpha values for paletted files */
png_color_16 trans_color; /* transparent color for non-paletted files */
#endif
png_read_status_ptr read_row_fn; /* called after each row is decoded */
png_write_status_ptr write_row_fn; /* called after each row is encoded */
#ifdef PNG_PROGRESSIVE_READ_SUPPORTED
png_progressive_info_ptr info_fn; /* called after header data fully read */
png_progressive_row_ptr row_fn; /* called after a prog. row is decoded */
png_progressive_end_ptr end_fn; /* called after image is complete */
png_bytep save_buffer_ptr; /* current location in save_buffer */
png_bytep save_buffer; /* buffer for previously read data */
png_bytep current_buffer_ptr; /* current location in current_buffer */
png_bytep current_buffer; /* buffer for recently used data */
png_uint_32 push_length; /* size of current input chunk */
png_uint_32 skip_length; /* bytes to skip in input data */
png_size_t save_buffer_size; /* amount of data now in save_buffer */
png_size_t save_buffer_max; /* total size of save_buffer */
png_size_t buffer_size; /* total amount of available input data */
png_size_t current_buffer_size; /* amount of data now in current_buffer */
int process_mode; /* what push library is currently doing */
int cur_palette; /* current push library palette index */
# ifdef PNG_TEXT_SUPPORTED
png_size_t current_text_size; /* current size of text input data */
png_size_t current_text_left; /* how much text left to read in input */
png_charp current_text; /* current text chunk buffer */
png_charp current_text_ptr; /* current location in current_text */
# endif /* PNG_PROGRESSIVE_READ_SUPPORTED && PNG_TEXT_SUPPORTED */
#endif /* PNG_PROGRESSIVE_READ_SUPPORTED */
#if defined(__TURBOC__) && !defined(_Windows) && !defined(__FLAT__)
/* For the Borland special 64K segment handler */
png_bytepp offset_table_ptr;
png_bytep offset_table;
png_uint_16 offset_table_number;
png_uint_16 offset_table_count;
png_uint_16 offset_table_count_free;
#endif
#ifdef PNG_READ_QUANTIZE_SUPPORTED
png_bytep palette_lookup; /* lookup table for quantizing */
png_bytep quantize_index; /* index translation for palette files */
#endif
#if defined(PNG_READ_QUANTIZE_SUPPORTED) || defined(PNG_hIST_SUPPORTED)
png_uint_16p hist; /* histogram */
#endif
#ifdef PNG_WRITE_WEIGHTED_FILTER_SUPPORTED
png_byte heuristic_method; /* heuristic for row filter selection */
png_byte num_prev_filters; /* number of weights for previous rows */
png_bytep prev_filters; /* filter type(s) of previous row(s) */
png_uint_16p filter_weights; /* weight(s) for previous line(s) */
png_uint_16p inv_filter_weights; /* 1/weight(s) for previous line(s) */
png_uint_16p filter_costs; /* relative filter calculation cost */
png_uint_16p inv_filter_costs; /* 1/relative filter calculation cost */
#endif
#ifdef PNG_TIME_RFC1123_SUPPORTED
char time_buffer[29]; /* String to hold RFC 1123 time text */
#endif
/* New members added in libpng-1.0.6 */
png_uint_32 free_me; /* flags items libpng is responsible for freeing */
#ifdef PNG_USER_CHUNKS_SUPPORTED
png_voidp user_chunk_ptr;
png_user_chunk_ptr read_user_chunk_fn; /* user read chunk handler */
#endif
#ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED
int num_chunk_list;
png_bytep chunk_list;
#endif
#ifdef PNG_READ_sRGB_SUPPORTED
/* Added in 1.5.5 to record an sRGB chunk in the png. */
png_byte is_sRGB;
#endif
/* New members added in libpng-1.0.3 */
#ifdef PNG_READ_RGB_TO_GRAY_SUPPORTED
png_byte rgb_to_gray_status;
/* Added in libpng 1.5.5 to record setting of coefficients: */
png_byte rgb_to_gray_coefficients_set;
/* These were changed from png_byte in libpng-1.0.6 */
png_uint_16 rgb_to_gray_red_coeff;
png_uint_16 rgb_to_gray_green_coeff;
/* deleted in 1.5.5: rgb_to_gray_blue_coeff; */
#endif
/* New member added in libpng-1.0.4 (renamed in 1.0.9) */
#if defined(PNG_MNG_FEATURES_SUPPORTED) || \
defined(PNG_READ_EMPTY_PLTE_SUPPORTED) || \
defined(PNG_WRITE_EMPTY_PLTE_SUPPORTED)
/* Changed from png_byte to png_uint_32 at version 1.2.0 */
png_uint_32 mng_features_permitted;
#endif
/* New member added in libpng-1.0.9, ifdef'ed out in 1.0.12, enabled in 1.2.0 */
#ifdef PNG_MNG_FEATURES_SUPPORTED
png_byte filter_type;
#endif
/* New members added in libpng-1.2.0 */
/* New members added in libpng-1.0.2 but first enabled by default in 1.2.0 */
#ifdef PNG_USER_MEM_SUPPORTED
png_voidp mem_ptr; /* user supplied struct for mem functions */
png_malloc_ptr malloc_fn; /* function for allocating memory */
png_free_ptr free_fn; /* function for freeing memory */
#endif
/* New member added in libpng-1.0.13 and 1.2.0 */
png_bytep big_row_buf; /* buffer to save current (unfiltered) row */
#ifdef PNG_READ_QUANTIZE_SUPPORTED
/* The following three members were added at version 1.0.14 and 1.2.4 */
png_bytep quantize_sort; /* working sort array */
png_bytep index_to_palette; /* where the original index currently is
in the palette */
png_bytep palette_to_index; /* which original index points to this
palette color */
#endif
/* New members added in libpng-1.0.16 and 1.2.6 */
png_byte compression_type;
#ifdef PNG_USER_LIMITS_SUPPORTED
png_uint_32 user_width_max;
png_uint_32 user_height_max;
/* Added in libpng-1.4.0: Total number of sPLT, text, and unknown
* chunks that can be stored (0 means unlimited).
*/
png_uint_32 user_chunk_cache_max;
/* Total memory that a zTXt, sPLT, iTXt, iCCP, or unknown chunk
* can occupy when decompressed. 0 means unlimited.
*/
png_alloc_size_t user_chunk_malloc_max;
#endif
/* New member added in libpng-1.0.25 and 1.2.17 */
#ifdef PNG_UNKNOWN_CHUNKS_SUPPORTED
/* Storage for unknown chunk that the library doesn't recognize. */
png_unknown_chunk unknown_chunk;
#endif
/* New member added in libpng-1.2.26 */
png_size_t old_big_row_buf_size;
/* New member added in libpng-1.2.30 */
png_charp chunkdata; /* buffer for reading chunk data */
#ifdef PNG_IO_STATE_SUPPORTED
/* New member added in libpng-1.4.0 */
png_uint_32 io_state;
#endif
/* New member added in libpng-1.5.6 */
png_bytep big_prev_row;
void (*read_filter[PNG_FILTER_VALUE_LAST-1])(png_row_infop row_info,
png_bytep row, png_const_bytep prev_row);
};
#endif /* PNGSTRUCT_H */

1233
ExternalLibs/glpng/png/pngtrans.c
View file

File diff suppressed because it is too large Load diff

37
ExternalLibs/glpng/zlib/adler32.c
View file

@ -1,12 +1,15 @@
/* adler32.c -- compute the Adler-32 checksum of a data stream
* Copyright (C) 1995-2004 Mark Adler
* Copyright (C) 1995-2007 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*/
/* @(#) $Id$ */
#define ZLIB_INTERNAL
#include "zlib.h"
#include "zutil.h"
#define local static
local uLong adler32_combine_(uLong adler1, uLong adler2, z_off64_t len2);
#define BASE 65521UL /* largest prime smaller than 65536 */
#define NMAX 5552
@ -125,10 +128,10 @@ uLong ZEXPORT adler32(adler, buf, len)
}
/* ========================================================================= */
uLong ZEXPORT adler32_combine(adler1, adler2, len2)
local uLong adler32_combine_(adler1, adler2, len2)
uLong adler1;
uLong adler2;
z_off_t len2;
z_off64_t len2;
{
unsigned long sum1;
unsigned long sum2;
@ -141,10 +144,26 @@ uLong ZEXPORT adler32_combine(adler1, adler2, len2)
MOD(sum2);
sum1 += (adler2 & 0xffff) + BASE - 1;
sum2 += ((adler1 >> 16) & 0xffff) + ((adler2 >> 16) & 0xffff) + BASE - rem;
if (sum1 > BASE) sum1 -= BASE;
if (sum1 > BASE) sum1 -= BASE;
if (sum2 > (BASE << 1)) sum2 -= (BASE << 1);
if (sum2 > BASE) sum2 -= BASE;
if (sum1 >= BASE) sum1 -= BASE;
if (sum1 >= BASE) sum1 -= BASE;
if (sum2 >= (BASE << 1)) sum2 -= (BASE << 1);
if (sum2 >= BASE) sum2 -= BASE;
return sum1 | (sum2 << 16);
}
/* ========================================================================= */
uLong ZEXPORT adler32_combine(adler1, adler2, len2)
uLong adler1;
uLong adler2;
z_off_t len2;
{
return adler32_combine_(adler1, adler2, len2);
}
uLong ZEXPORT adler32_combine64(adler1, adler2, len2)
uLong adler1;
uLong adler2;
z_off64_t len2;
{
return adler32_combine_(adler1, adler2, len2);
}

6
ExternalLibs/glpng/zlib/compress.c
View file

@ -1,5 +1,5 @@
/* compress.c -- compress a memory buffer
* Copyright (C) 1995-2003 Jean-loup Gailly.
* Copyright (C) 1995-2005 Jean-loup Gailly.
* For conditions of distribution and use, see copyright notice in zlib.h
*/
@ -75,6 +75,6 @@ int ZEXPORT compress (dest, destLen, source, sourceLen)
uLong ZEXPORT compressBound (sourceLen)
uLong sourceLen;
{
return sourceLen + (sourceLen >> 12) + (sourceLen >> 14) + 11;
return sourceLen + (sourceLen >> 12) + (sourceLen >> 14) +
(sourceLen >> 25) + 13;
}

34
ExternalLibs/glpng/zlib/crc32.c
View file

@ -1,5 +1,5 @@
/* crc32.c -- compute the CRC-32 of a data stream
* Copyright (C) 1995-2005 Mark Adler
* Copyright (C) 1995-2006, 2010 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*
* Thanks to Rodney Brown <rbrown64@csc.com.au> for his contribution of faster
@ -53,7 +53,7 @@
/* Definitions for doing the crc four data bytes at a time. */
#ifdef BYFOUR
# define REV(w) (((w)>>24)+(((w)>>8)&0xff00)+ \
# define REV(w) ((((w)>>24)&0xff)+(((w)>>8)&0xff00)+ \
(((w)&0xff00)<<8)+(((w)&0xff)<<24))
local unsigned long crc32_little OF((unsigned long,
const unsigned char FAR *, unsigned));
@ -68,6 +68,8 @@
local unsigned long gf2_matrix_times OF((unsigned long *mat,
unsigned long vec));
local void gf2_matrix_square OF((unsigned long *square, unsigned long *mat));
local uLong crc32_combine_(uLong crc1, uLong crc2, z_off64_t len2);
#ifdef DYNAMIC_CRC_TABLE
@ -219,7 +221,7 @@ const unsigned long FAR * ZEXPORT get_crc_table()
unsigned long ZEXPORT crc32(crc, buf, len)
unsigned long crc;
const unsigned char FAR *buf;
unsigned len;
uInt len;
{
if (buf == Z_NULL) return 0UL;
@ -367,22 +369,22 @@ local void gf2_matrix_square(square, mat)
}
/* ========================================================================= */
uLong ZEXPORT crc32_combine(crc1, crc2, len2)
local uLong crc32_combine_(crc1, crc2, len2)
uLong crc1;
uLong crc2;
z_off_t len2;
z_off64_t len2;
{
int n;
unsigned long row;
unsigned long even[GF2_DIM]; /* even-power-of-two zeros operator */
unsigned long odd[GF2_DIM]; /* odd-power-of-two zeros operator */
/* degenerate case */
if (len2 == 0)
/* degenerate case (also disallow negative lengths) */
if (len2 <= 0)
return crc1;
/* put operator for one zero bit in odd */
odd[0] = 0xedb88320L; /* CRC-32 polynomial */
odd[0] = 0xedb88320UL; /* CRC-32 polynomial */
row = 1;
for (n = 1; n < GF2_DIM; n++) {
odd[n] = row;
@ -422,3 +424,19 @@ uLong ZEXPORT crc32_combine(crc1, crc2, len2)
return crc1;
}
/* ========================================================================= */
uLong ZEXPORT crc32_combine(crc1, crc2, len2)
uLong crc1;
uLong crc2;
z_off_t len2;
{
return crc32_combine_(crc1, crc2, len2);
}
uLong ZEXPORT crc32_combine64(crc1, crc2, len2)
uLong crc1;
uLong crc2;
z_off64_t len2;
{
return crc32_combine_(crc1, crc2, len2);
}

267
ExternalLibs/glpng/zlib/deflate.c
View file

@ -1,5 +1,5 @@
/* deflate.c -- compress data using the deflation algorithm
* Copyright (C) 1995-2005 Jean-loup Gailly.
* Copyright (C) 1995-2010 Jean-loup Gailly and Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*/
@ -52,7 +52,7 @@
#include "deflate.h"
const char deflate_copyright[] =
" deflate 1.2.3 Copyright 1995-2005 Jean-loup Gailly ";
" deflate 1.2.5 Copyright 1995-2010 Jean-loup Gailly and Mark Adler ";
/*
If you use the zlib library in a product, an acknowledgment is welcome
in the documentation of your product. If for some reason you cannot
@ -79,19 +79,18 @@ local block_state deflate_fast OF((deflate_state *s, int flush));
#ifndef FASTEST
local block_state deflate_slow OF((deflate_state *s, int flush));
#endif
local block_state deflate_rle OF((deflate_state *s, int flush));
local block_state deflate_huff OF((deflate_state *s, int flush));
local void lm_init OF((deflate_state *s));
local void putShortMSB OF((deflate_state *s, uInt b));
local void flush_pending OF((z_streamp strm));
local int read_buf OF((z_streamp strm, Bytef *buf, unsigned size));
#ifndef FASTEST
#ifdef ASMV
void match_init OF((void)); /* asm code initialization */
uInt longest_match OF((deflate_state *s, IPos cur_match));
#else
local uInt longest_match OF((deflate_state *s, IPos cur_match));
#endif
#endif
local uInt longest_match_fast OF((deflate_state *s, IPos cur_match));
#ifdef DEBUG
local void check_match OF((deflate_state *s, IPos start, IPos match,
@ -110,11 +109,6 @@ local void check_match OF((deflate_state *s, IPos start, IPos match,
#endif
/* Matches of length 3 are discarded if their distance exceeds TOO_FAR */
#define MIN_LOOKAHEAD (MAX_MATCH+MIN_MATCH+1)
/* Minimum amount of lookahead, except at the end of the input file.
* See deflate.c for comments about the MIN_MATCH+1.
*/
/* Values for max_lazy_match, good_match and max_chain_length, depending on
* the desired pack level (0..9). The values given below have been tuned to
* exclude worst case performance for pathological files. Better values may be
@ -288,6 +282,8 @@ int ZEXPORT deflateInit2_(strm, level, method, windowBits, memLevel, strategy,
s->prev = (Posf *) ZALLOC(strm, s->w_size, sizeof(Pos));
s->head = (Posf *) ZALLOC(strm, s->hash_size, sizeof(Pos));
s->high_water = 0; /* nothing written to s->window yet */
s->lit_bufsize = 1 << (memLevel + 6); /* 16K elements by default */
overlay = (ushf *) ZALLOC(strm, s->lit_bufsize, sizeof(ush)+2);
@ -332,8 +328,8 @@ int ZEXPORT deflateSetDictionary (strm, dictionary, dictLength)
strm->adler = adler32(strm->adler, dictionary, dictLength);
if (length < MIN_MATCH) return Z_OK;
if (length > MAX_DIST(s)) {
length = MAX_DIST(s);
if (length > s->w_size) {
length = s->w_size;
dictionary += dictLength - length; /* use the tail of the dictionary */
}
zmemcpy(s->window, dictionary, length);
@ -435,9 +431,10 @@ int ZEXPORT deflateParams(strm, level, strategy)
}
func = configuration_table[s->level].func;
if (func != configuration_table[level].func && strm->total_in != 0) {
if ((strategy != s->strategy || func != configuration_table[level].func) &&
strm->total_in != 0) {
/* Flush the last buffer: */
err = deflate(strm, Z_PARTIAL_FLUSH);
err = deflate(strm, Z_BLOCK);
}
if (s->level != level) {
s->level = level;
@ -481,33 +478,66 @@ int ZEXPORT deflateTune(strm, good_length, max_lazy, nice_length, max_chain)
* resulting from using fixed blocks instead of stored blocks, which deflate
* can emit on compressed data for some combinations of the parameters.
*
* This function could be more sophisticated to provide closer upper bounds
* for every combination of windowBits and memLevel, as well as wrap.
* But even the conservative upper bound of about 14% expansion does not
* seem onerous for output buffer allocation.
* This function could be more sophisticated to provide closer upper bounds for
* every combination of windowBits and memLevel. But even the conservative
* upper bound of about 14% expansion does not seem onerous for output buffer
* allocation.
*/
uLong ZEXPORT deflateBound(strm, sourceLen)
z_streamp strm;
uLong sourceLen;
{
deflate_state *s;
uLong destLen;
uLong complen, wraplen;
Bytef *str;
/* conservative upper bound */
destLen = sourceLen +
((sourceLen + 7) >> 3) + ((sourceLen + 63) >> 6) + 11;
/* conservative upper bound for compressed data */
complen = sourceLen +
((sourceLen + 7) >> 3) + ((sourceLen + 63) >> 6) + 5;
/* if can't get parameters, return conservative bound */
/* if can't get parameters, return conservative bound plus zlib wrapper */
if (strm == Z_NULL || strm->state == Z_NULL)
return destLen;
return complen + 6;
/* compute wrapper length */
s = strm->state;
switch (s->wrap) {
case 0: /* raw deflate */
wraplen = 0;
break;
case 1: /* zlib wrapper */
wraplen = 6 + (s->strstart ? 4 : 0);
break;
case 2: /* gzip wrapper */
wraplen = 18;
if (s->gzhead != Z_NULL) { /* user-supplied gzip header */
if (s->gzhead->extra != Z_NULL)
wraplen += 2 + s->gzhead->extra_len;
str = s->gzhead->name;
if (str != Z_NULL)
do {
wraplen++;
} while (*str++);
str = s->gzhead->comment;
if (str != Z_NULL)
do {
wraplen++;
} while (*str++);
if (s->gzhead->hcrc)
wraplen += 2;
}
break;
default: /* for compiler happiness */
wraplen = 6;
}
/* if not default parameters, return conservative bound */
s = strm->state;
if (s->w_bits != 15 || s->hash_bits != 8 + 7)
return destLen;
return complen + wraplen;
/* default settings: return tight bound for that case */
return compressBound(sourceLen);
return sourceLen + (sourceLen >> 12) + (sourceLen >> 14) +
(sourceLen >> 25) + 13 - 6 + wraplen;
}
/* =========================================================================
@ -557,7 +587,7 @@ int ZEXPORT deflate (strm, flush)
deflate_state *s;
if (strm == Z_NULL || strm->state == Z_NULL ||
flush > Z_FINISH || flush < 0) {
flush > Z_BLOCK || flush < 0) {
return Z_STREAM_ERROR;
}
s = strm->state;
@ -581,7 +611,7 @@ int ZEXPORT deflate (strm, flush)
put_byte(s, 31);
put_byte(s, 139);
put_byte(s, 8);
if (s->gzhead == NULL) {
if (s->gzhead == Z_NULL) {
put_byte(s, 0);
put_byte(s, 0);
put_byte(s, 0);
@ -608,7 +638,7 @@ int ZEXPORT deflate (strm, flush)
(s->strategy >= Z_HUFFMAN_ONLY || s->level < 2 ?
4 : 0));
put_byte(s, s->gzhead->os & 0xff);
if (s->gzhead->extra != NULL) {
if (s->gzhead->extra != Z_NULL) {
put_byte(s, s->gzhead->extra_len & 0xff);
put_byte(s, (s->gzhead->extra_len >> 8) & 0xff);
}
@ -650,7 +680,7 @@ int ZEXPORT deflate (strm, flush)
}
#ifdef GZIP
if (s->status == EXTRA_STATE) {
if (s->gzhead->extra != NULL) {
if (s->gzhead->extra != Z_NULL) {
uInt beg = s->pending; /* start of bytes to update crc */
while (s->gzindex < (s->gzhead->extra_len & 0xffff)) {
@ -678,7 +708,7 @@ int ZEXPORT deflate (strm, flush)
s->status = NAME_STATE;
}
if (s->status == NAME_STATE) {
if (s->gzhead->name != NULL) {
if (s->gzhead->name != Z_NULL) {
uInt beg = s->pending; /* start of bytes to update crc */
int val;
@ -709,7 +739,7 @@ int ZEXPORT deflate (strm, flush)
s->status = COMMENT_STATE;
}
if (s->status == COMMENT_STATE) {
if (s->gzhead->comment != NULL) {
if (s->gzhead->comment != Z_NULL) {
uInt beg = s->pending; /* start of bytes to update crc */
int val;
@ -787,7 +817,9 @@ int ZEXPORT deflate (strm, flush)
(flush != Z_NO_FLUSH && s->status != FINISH_STATE)) {
block_state bstate;
bstate = (*(configuration_table[s->level].func))(s, flush);
bstate = s->strategy == Z_HUFFMAN_ONLY ? deflate_huff(s, flush) :
(s->strategy == Z_RLE ? deflate_rle(s, flush) :
(*(configuration_table[s->level].func))(s, flush));
if (bstate == finish_started || bstate == finish_done) {
s->status = FINISH_STATE;
@ -808,13 +840,17 @@ int ZEXPORT deflate (strm, flush)
if (bstate == block_done) {
if (flush == Z_PARTIAL_FLUSH) {
_tr_align(s);
} else { /* FULL_FLUSH or SYNC_FLUSH */
} else if (flush != Z_BLOCK) { /* FULL_FLUSH or SYNC_FLUSH */
_tr_stored_block(s, (char*)0, 0L, 0);
/* For a full flush, this empty block will be recognized
* as a special marker by inflate_sync().
*/
if (flush == Z_FULL_FLUSH) {
CLEAR_HASH(s); /* forget history */
if (s->lookahead == 0) {
s->strstart = 0;
s->block_start = 0L;
}
}
}
flush_pending(strm);
@ -1167,12 +1203,13 @@ local uInt longest_match(s, cur_match)
return s->lookahead;
}
#endif /* ASMV */
#endif /* FASTEST */
#else /* FASTEST */
/* ---------------------------------------------------------------------------
* Optimized version for level == 1 or strategy == Z_RLE only
* Optimized version for FASTEST only
*/
local uInt longest_match_fast(s, cur_match)
local uInt longest_match(s, cur_match)
deflate_state *s;
IPos cur_match; /* current match */
{
@ -1225,6 +1262,8 @@ local uInt longest_match_fast(s, cur_match)
return (uInt)len <= s->lookahead ? (uInt)len : s->lookahead;
}
#endif /* FASTEST */
#ifdef DEBUG
/* ===========================================================================
* Check that the match at match_start is indeed a match.
@ -1303,7 +1342,6 @@ local void fill_window(s)
later. (Using level 0 permanently is not an optimal usage of
zlib, so we don't care about this pathological case.)
*/
/* %%% avoid this when Z_RLE */
n = s->hash_size;
p = &s->head[n];
do {
@ -1355,27 +1393,61 @@ local void fill_window(s)
*/
} while (s->lookahead < MIN_LOOKAHEAD && s->strm->avail_in != 0);
/* If the WIN_INIT bytes after the end of the current data have never been
* written, then zero those bytes in order to avoid memory check reports of
* the use of uninitialized (or uninitialised as Julian writes) bytes by
* the longest match routines. Update the high water mark for the next
* time through here. WIN_INIT is set to MAX_MATCH since the longest match
* routines allow scanning to strstart + MAX_MATCH, ignoring lookahead.
*/
if (s->high_water < s->window_size) {
ulg curr = s->strstart + (ulg)(s->lookahead);
ulg init;
if (s->high_water < curr) {
/* Previous high water mark below current data -- zero WIN_INIT
* bytes or up to end of window, whichever is less.
*/
init = s->window_size - curr;
if (init > WIN_INIT)
init = WIN_INIT;
zmemzero(s->window + curr, (unsigned)init);
s->high_water = curr + init;
}
else if (s->high_water < (ulg)curr + WIN_INIT) {
/* High water mark at or above current data, but below current data
* plus WIN_INIT -- zero out to current data plus WIN_INIT, or up
* to end of window, whichever is less.
*/
init = (ulg)curr + WIN_INIT - s->high_water;
if (init > s->window_size - s->high_water)
init = s->window_size - s->high_water;
zmemzero(s->window + s->high_water, (unsigned)init);
s->high_water += init;
}
}
}
/* ===========================================================================
* Flush the current block, with given end-of-file flag.
* IN assertion: strstart is set to the end of the current match.
*/
#define FLUSH_BLOCK_ONLY(s, eof) { \
#define FLUSH_BLOCK_ONLY(s, last) { \
_tr_flush_block(s, (s->block_start >= 0L ? \
(charf *)&s->window[(unsigned)s->block_start] : \
(charf *)Z_NULL), \
(ulg)((long)s->strstart - s->block_start), \
(eof)); \
(last)); \
s->block_start = s->strstart; \
flush_pending(s->strm); \
Tracev((stderr,"[FLUSH]")); \
}
/* Same but force premature exit if necessary. */
#define FLUSH_BLOCK(s, eof) { \
FLUSH_BLOCK_ONLY(s, eof); \
if (s->strm->avail_out == 0) return (eof) ? finish_started : need_more; \
#define FLUSH_BLOCK(s, last) { \
FLUSH_BLOCK_ONLY(s, last); \
if (s->strm->avail_out == 0) return (last) ? finish_started : need_more; \
}
/* ===========================================================================
@ -1449,7 +1521,7 @@ local block_state deflate_fast(s, flush)
deflate_state *s;
int flush;
{
IPos hash_head = NIL; /* head of the hash chain */
IPos hash_head; /* head of the hash chain */
int bflush; /* set if current block must be flushed */
for (;;) {
@ -1469,6 +1541,7 @@ local block_state deflate_fast(s, flush)
/* Insert the string window[strstart .. strstart+2] in the
* dictionary, and set hash_head to the head of the hash chain:
*/
hash_head = NIL;
if (s->lookahead >= MIN_MATCH) {
INSERT_STRING(s, s->strstart, hash_head);
}
@ -1481,19 +1554,8 @@ local block_state deflate_fast(s, flush)
* of window index 0 (in particular we have to avoid a match
* of the string with itself at the start of the input file).
*/
#ifdef FASTEST
if ((s->strategy != Z_HUFFMAN_ONLY && s->strategy != Z_RLE) ||
(s->strategy == Z_RLE && s->strstart - hash_head == 1)) {
s->match_length = longest_match_fast (s, hash_head);
}
#else
if (s->strategy != Z_HUFFMAN_ONLY && s->strategy != Z_RLE) {
s->match_length = longest_match (s, hash_head);
} else if (s->strategy == Z_RLE && s->strstart - hash_head == 1) {
s->match_length = longest_match_fast (s, hash_head);
}
#endif
/* longest_match() or longest_match_fast() sets match_start */
s->match_length = longest_match (s, hash_head);
/* longest_match() sets match_start */
}
if (s->match_length >= MIN_MATCH) {
check_match(s, s->strstart, s->match_start, s->match_length);
@ -1555,7 +1617,7 @@ local block_state deflate_slow(s, flush)
deflate_state *s;
int flush;
{
IPos hash_head = NIL; /* head of hash chain */
IPos hash_head; /* head of hash chain */
int bflush; /* set if current block must be flushed */
/* Process the input block. */
@ -1576,6 +1638,7 @@ local block_state deflate_slow(s, flush)
/* Insert the string window[strstart .. strstart+2] in the
* dictionary, and set hash_head to the head of the hash chain:
*/
hash_head = NIL;
if (s->lookahead >= MIN_MATCH) {
INSERT_STRING(s, s->strstart, hash_head);
}
@ -1591,12 +1654,8 @@ local block_state deflate_slow(s, flush)
* of window index 0 (in particular we have to avoid a match
* of the string with itself at the start of the input file).
*/
if (s->strategy != Z_HUFFMAN_ONLY && s->strategy != Z_RLE) {
s->match_length = longest_match (s, hash_head);
} else if (s->strategy == Z_RLE && s->strstart - hash_head == 1) {
s->match_length = longest_match_fast (s, hash_head);
}
/* longest_match() or longest_match_fast() sets match_start */
s->match_length = longest_match (s, hash_head);
/* longest_match() sets match_start */
if (s->match_length <= 5 && (s->strategy == Z_FILTERED
#if TOO_FAR <= 32767
@ -1674,7 +1733,6 @@ local block_state deflate_slow(s, flush)
}
#endif /* FASTEST */
#if 0
/* ===========================================================================
* For Z_RLE, simply look for runs of bytes, generate matches only of distance
* one. Do not maintain a hash table. (It will be regenerated if this run of
@ -1684,11 +1742,9 @@ local block_state deflate_rle(s, flush)
deflate_state *s;
int flush;
{
int bflush; /* set if current block must be flushed */
uInt run; /* length of run */
uInt max; /* maximum length of run */
uInt prev; /* byte at distance one to match */
Bytef *scan; /* scan for end of run */
int bflush; /* set if current block must be flushed */
uInt prev; /* byte at distance one to match */
Bytef *scan, *strend; /* scan goes up to strend for length of run */
for (;;) {
/* Make sure that we always have enough lookahead, except
@ -1704,23 +1760,33 @@ local block_state deflate_rle(s, flush)
}
/* See how many times the previous byte repeats */
run = 0;
if (s->strstart > 0) { /* if there is a previous byte, that is */
max = s->lookahead < MAX_MATCH ? s->lookahead : MAX_MATCH;
s->match_length = 0;
if (s->lookahead >= MIN_MATCH && s->strstart > 0) {
scan = s->window + s->strstart - 1;
prev = *scan++;
do {
if (*scan++ != prev)
break;
} while (++run < max);
prev = *scan;
if (prev == *++scan && prev == *++scan && prev == *++scan) {
strend = s->window + s->strstart + MAX_MATCH;
do {
} while (prev == *++scan && prev == *++scan &&
prev == *++scan && prev == *++scan &&
prev == *++scan && prev == *++scan &&
prev == *++scan && prev == *++scan &&
scan < strend);
s->match_length = MAX_MATCH - (int)(strend - scan);
if (s->match_length > s->lookahead)
s->match_length = s->lookahead;
}
}
/* Emit match if have run of MIN_MATCH or longer, else emit literal */
if (run >= MIN_MATCH) {
check_match(s, s->strstart, s->strstart - 1, run);
_tr_tally_dist(s, 1, run - MIN_MATCH, bflush);
s->lookahead -= run;
s->strstart += run;
if (s->match_length >= MIN_MATCH) {
check_match(s, s->strstart, s->strstart - 1, s->match_length);
_tr_tally_dist(s, 1, s->match_length - MIN_MATCH, bflush);
s->lookahead -= s->match_length;
s->strstart += s->match_length;
s->match_length = 0;
} else {
/* No match, output a literal byte */
Tracevv((stderr,"%c", s->window[s->strstart]));
@ -1733,5 +1799,36 @@ local block_state deflate_rle(s, flush)
FLUSH_BLOCK(s, flush == Z_FINISH);
return flush == Z_FINISH ? finish_done : block_done;
}
#endif
/* ===========================================================================
* For Z_HUFFMAN_ONLY, do not look for matches. Do not maintain a hash table.
* (It will be regenerated if this run of deflate switches away from Huffman.)
*/
local block_state deflate_huff(s, flush)
deflate_state *s;
int flush;
{
int bflush; /* set if current block must be flushed */
for (;;) {
/* Make sure that we have a literal to write. */
if (s->lookahead == 0) {
fill_window(s);
if (s->lookahead == 0) {
if (flush == Z_NO_FLUSH)
return need_more;
break; /* flush the current block */
}
}
/* Output a literal byte */
s->match_length = 0;
Tracevv((stderr,"%c", s->window[s->strstart]));
_tr_tally_lit (s, s->window[s->strstart], bflush);
s->lookahead--;
s->strstart++;
if (bflush) FLUSH_BLOCK(s, 0);
}
FLUSH_BLOCK(s, flush == Z_FINISH);
return flush == Z_FINISH ? finish_done : block_done;
}

35
ExternalLibs/glpng/zlib/deflate.h
View file

@ -1,5 +1,5 @@
/* deflate.h -- internal compression state
* Copyright (C) 1995-2004 Jean-loup Gailly
* Copyright (C) 1995-2010 Jean-loup Gailly
* For conditions of distribution and use, see copyright notice in zlib.h
*/
@ -260,6 +260,13 @@ typedef struct internal_state {
* are always zero.
*/
ulg high_water;
/* High water mark offset in window for initialized bytes -- bytes above
* this are set to zero in order to avoid memory check warnings when
* longest match routines access bytes past the input. This is then
* updated to the new high water mark.
*/
} FAR deflate_state;
/* Output a byte on the stream.
@ -278,14 +285,18 @@ typedef struct internal_state {
* distances are limited to MAX_DIST instead of WSIZE.
*/
#define WIN_INIT MAX_MATCH
/* Number of bytes after end of data in window to initialize in order to avoid
memory checker errors from longest match routines */
/* in trees.c */
void _tr_init OF((deflate_state *s));
int _tr_tally OF((deflate_state *s, unsigned dist, unsigned lc));
void _tr_flush_block OF((deflate_state *s, charf *buf, ulg stored_len,
int eof));
void _tr_align OF((deflate_state *s));
void _tr_stored_block OF((deflate_state *s, charf *buf, ulg stored_len,
int eof));
void ZLIB_INTERNAL _tr_init OF((deflate_state *s));
int ZLIB_INTERNAL _tr_tally OF((deflate_state *s, unsigned dist, unsigned lc));
void ZLIB_INTERNAL _tr_flush_block OF((deflate_state *s, charf *buf,
ulg stored_len, int last));
void ZLIB_INTERNAL _tr_align OF((deflate_state *s));
void ZLIB_INTERNAL _tr_stored_block OF((deflate_state *s, charf *buf,
ulg stored_len, int last));
#define d_code(dist) \
((dist) < 256 ? _dist_code[dist] : _dist_code[256+((dist)>>7)])
@ -298,11 +309,11 @@ void _tr_stored_block OF((deflate_state *s, charf *buf, ulg stored_len,
/* Inline versions of _tr_tally for speed: */
#if defined(GEN_TREES_H) || !defined(STDC)
extern uch _length_code[];
extern uch _dist_code[];
extern uch ZLIB_INTERNAL _length_code[];
extern uch ZLIB_INTERNAL _dist_code[];
#else
extern const uch _length_code[];
extern const uch _dist_code[];
extern const uch ZLIB_INTERNAL _length_code[];
extern const uch ZLIB_INTERNAL _dist_code[];
#endif
# define _tr_tally_lit(s, c, flush) \

566
ExternalLibs/glpng/zlib/example.c
View file

@ -1,566 +0,0 @@
/* example.c -- usage example of the zlib compression library
* Copyright (C) 1995-2004 Jean-loup Gailly.
* For conditions of distribution and use, see copyright notice in zlib.h
*/
/* @(#) $Id$ */
#include <stdio.h>
#include "zlib.h"
#ifdef STDC
# include <string.h>
# include <stdlib.h>
#endif
#if defined(VMS) || defined(RISCOS)
# define TESTFILE "foo-gz"
#else
# define TESTFILE "foo.gz"
#endif
#define CHECK_ERR(err, msg) { \
if (err != Z_OK) { \
fprintf(stderr, "%s error: %d\n", msg, err); \
exit(1); \
} \
}
const char hello[] = "hello, hello!";
/* "hello world" would be more standard, but the repeated "hello"
* stresses the compression code better, sorry...
*/
const char dictionary[] = "hello";
uLong dictId; /* Adler32 value of the dictionary */
void test_compress OF((Byte *compr, uLong comprLen,
Byte *uncompr, uLong uncomprLen));
void test_gzio OF((const char *fname,
Byte *uncompr, uLong uncomprLen));
void test_deflate OF((Byte *compr, uLong comprLen));
void test_inflate OF((Byte *compr, uLong comprLen,
Byte *uncompr, uLong uncomprLen));
void test_large_deflate OF((Byte *compr, uLong comprLen,
Byte *uncompr, uLong uncomprLen));
void test_large_inflate OF((Byte *compr, uLong comprLen,
Byte *uncompr, uLong uncomprLen));
void test_flush OF((Byte *compr, uLong *comprLen));
void test_sync OF((Byte *compr, uLong comprLen,
Byte *uncompr, uLong uncomprLen));
void test_dict_deflate OF((Byte *compr, uLong comprLen));
void test_dict_inflate OF((Byte *compr, uLong comprLen,
Byte *uncompr, uLong uncomprLen));
int main OF((int argc, char *argv[]));
/* ===========================================================================
* Test compress() and uncompress()
*/
void test_compress(compr, comprLen, uncompr, uncomprLen)
Byte *compr, *uncompr;
uLong comprLen, uncomprLen;
{
int err;
uLong len = (uLong)strlen(hello)+1;
err = compress(compr, &comprLen, (const Bytef*)hello, len);
CHECK_ERR(err, "compress");
strcpy((char*)uncompr, "garbage");
err = uncompress(uncompr, &uncomprLen, compr, comprLen);
CHECK_ERR(err, "uncompress");
if (strcmp((char*)uncompr, hello)) {
fprintf(stderr, "bad uncompress\n");
exit(1);
} else {
printf("uncompress(): %s\n", (char *)uncompr);
}
}
/* ===========================================================================
* Test read/write of .gz files
*/
void test_gzio(fname, uncompr, uncomprLen)
const char *fname; /* compressed file name */
Byte *uncompr;
uLong uncomprLen;
{
#ifdef NO_GZCOMPRESS
fprintf(stderr, "NO_GZCOMPRESS -- gz* functions cannot compress\n");
#else
int err;
int len = (int)strlen(hello)+1;
gzFile file;
z_off_t pos;
file = gzopen(fname, "wb");
if (file == NULL) {
fprintf(stderr, "gzopen error\n");
exit(1);
}
gzputc(file, 'h');
if (gzputs(file, "ello") != 4) {
fprintf(stderr, "gzputs err: %s\n", gzerror(file, &err));
exit(1);
}
if (gzprintf(file, ", %s!", "hello") != 8) {
fprintf(stderr, "gzprintf err: %s\n", gzerror(file, &err));
exit(1);
}
gzseek(file, 1L, SEEK_CUR); /* add one zero byte */
gzclose(file);
file = gzopen(fname, "rb");
if (file == NULL) {
fprintf(stderr, "gzopen error\n");
exit(1);
}
strcpy((char*)uncompr, "garbage");
if (gzread(file, uncompr, (unsigned)uncomprLen) != len) {
fprintf(stderr, "gzread err: %s\n", gzerror(file, &err));
exit(1);
}
if (strcmp((char*)uncompr, hello)) {
fprintf(stderr, "bad gzread: %s\n", (char*)uncompr);
exit(1);
} else {
printf("gzread(): %s\n", (char*)uncompr);
}
pos = gzseek(file, -8L, SEEK_CUR);
if (pos != 6 || gztell(file) != pos) {
fprintf(stderr, "gzseek error, pos=%ld, gztell=%ld\n",
(long)pos, (long)gztell(file));
exit(1);
}
if (gzgetc(file) != ' ') {
fprintf(stderr, "gzgetc error\n");
exit(1);
}
if (gzungetc(' ', file) != ' ') {
fprintf(stderr, "gzungetc error\n");
exit(1);
}
gzgets(file, (char*)uncompr, (int)uncomprLen);
if (strlen((char*)uncompr) != 7) { /* " hello!" */
fprintf(stderr, "gzgets err after gzseek: %s\n", gzerror(file, &err));
exit(1);
}
if (strcmp((char*)uncompr, hello + 6)) {
fprintf(stderr, "bad gzgets after gzseek\n");
exit(1);
} else {
printf("gzgets() after gzseek: %s\n", (char*)uncompr);
}
gzclose(file);
#endif
}
/* ===========================================================================
* Test deflate() with small buffers
*/
void test_deflate(compr, comprLen)
Byte *compr;
uLong comprLen;
{
z_stream c_stream; /* compression stream */
int err;
uLong len = (uLong)strlen(hello)+1;
c_stream.zalloc = (alloc_func)0;
c_stream.zfree = (free_func)0;
c_stream.opaque = (voidpf)0;
err = deflateInit(&c_stream, Z_DEFAULT_COMPRESSION);
CHECK_ERR(err, "deflateInit");
c_stream.next_in = (Bytef*)hello;
c_stream.next_out = compr;
while (c_stream.total_in != len && c_stream.total_out < comprLen) {
c_stream.avail_in = c_stream.avail_out = 1; /* force small buffers */
err = deflate(&c_stream, Z_NO_FLUSH);
CHECK_ERR(err, "deflate");
}
/* Finish the stream, still forcing small buffers: */
for (;;) {
c_stream.avail_out = 1;
err = deflate(&c_stream, Z_FINISH);
if (err == Z_STREAM_END) break;
CHECK_ERR(err, "deflate");
}
err = deflateEnd(&c_stream);
CHECK_ERR(err, "deflateEnd");
}
/* ===========================================================================
* Test inflate() with small buffers
*/
void test_inflate(compr, comprLen, uncompr, uncomprLen)
Byte *compr, *uncompr;
uLong comprLen, uncomprLen;
{
int err;
z_stream d_stream; /* decompression stream */
strcpy((char*)uncompr, "garbage");
d_stream.zalloc = (alloc_func)0;
d_stream.zfree = (free_func)0;
d_stream.opaque = (voidpf)0;
d_stream.next_in = compr;
d_stream.avail_in = 0;
d_stream.next_out = uncompr;
err = inflateInit(&d_stream);
CHECK_ERR(err, "inflateInit");
while (d_stream.total_out < uncomprLen && d_stream.total_in < comprLen) {
d_stream.avail_in = d_stream.avail_out = 1; /* force small buffers */
err = inflate(&d_stream, Z_NO_FLUSH);
if (err == Z_STREAM_END) break;
CHECK_ERR(err, "inflate");
}
err = inflateEnd(&d_stream);
CHECK_ERR(err, "inflateEnd");
if (strcmp((char*)uncompr, hello)) {
fprintf(stderr, "bad inflate\n");
exit(1);
} else {
printf("inflate(): %s\n", (char *)uncompr);
}
}
/* ===========================================================================
* Test deflate() with large buffers and dynamic change of compression level
*/
void test_large_deflate(compr, comprLen, uncompr, uncomprLen)
Byte *compr, *uncompr;
uLong comprLen, uncomprLen;
{
z_stream c_stream; /* compression stream */
int err;
c_stream.zalloc = (alloc_func)0;
c_stream.zfree = (free_func)0;
c_stream.opaque = (voidpf)0;
err = deflateInit(&c_stream, Z_BEST_SPEED);
CHECK_ERR(err, "deflateInit");
c_stream.next_out = compr;
c_stream.avail_out = (uInt)comprLen;
/* At this point, uncompr is still mostly zeroes, so it should compress
* very well:
*/
c_stream.next_in = uncompr;
c_stream.avail_in = (uInt)uncomprLen;
err = deflate(&c_stream, Z_NO_FLUSH);
CHECK_ERR(err, "deflate");
if (c_stream.avail_in != 0) {
fprintf(stderr, "deflate not greedy\n");
exit(1);
}
/* Feed in already compressed data and switch to no compression: */
deflateParams(&c_stream, Z_NO_COMPRESSION, Z_DEFAULT_STRATEGY);
c_stream.next_in = compr;
c_stream.avail_in = (uInt)comprLen/2;
err = deflate(&c_stream, Z_NO_FLUSH);
CHECK_ERR(err, "deflate");
/* Switch back to compressing mode: */
deflateParams(&c_stream, Z_BEST_COMPRESSION, Z_FILTERED);
c_stream.next_in = uncompr;
c_stream.avail_in = (uInt)uncomprLen;
err = deflate(&c_stream, Z_NO_FLUSH);
CHECK_ERR(err, "deflate");
err = deflate(&c_stream, Z_FINISH);
if (err != Z_STREAM_END) {
fprintf(stderr, "deflate should report Z_STREAM_END\n");
exit(1);
}
err = deflateEnd(&c_stream);
CHECK_ERR(err, "deflateEnd");
}
/* ===========================================================================
* Test inflate() with large buffers
*/
void test_large_inflate(compr, comprLen, uncompr, uncomprLen)
Byte *compr, *uncompr;
uLong comprLen, uncomprLen;
{
int err;
z_stream d_stream; /* decompression stream */
strcpy((char*)uncompr, "garbage");
d_stream.zalloc = (alloc_func)0;
d_stream.zfree = (free_func)0;
d_stream.opaque = (voidpf)0;
d_stream.next_in = compr;
d_stream.avail_in = (uInt)comprLen;
err = inflateInit(&d_stream);
CHECK_ERR(err, "inflateInit");
for (;;) {
d_stream.next_out = uncompr; /* discard the output */
d_stream.avail_out = (uInt)uncomprLen;
err = inflate(&d_stream, Z_NO_FLUSH);
if (err == Z_STREAM_END) break;
CHECK_ERR(err, "large inflate");
}
err = inflateEnd(&d_stream);
CHECK_ERR(err, "inflateEnd");
if (d_stream.total_out != 2*uncomprLen + comprLen/2) {
fprintf(stderr, "bad large inflate: %ld\n", d_stream.total_out);
exit(1);
} else {
printf("large_inflate(): OK\n");
}
}
/* ===========================================================================
* Test deflate() with full flush
*/
void test_flush(compr, comprLen)
Byte *compr;
uLong *comprLen;
{
z_stream c_stream; /* compression stream */
int err;
uInt len = (uInt)strlen(hello)+1;
c_stream.zalloc = (alloc_func)0;
c_stream.zfree = (free_func)0;
c_stream.opaque = (voidpf)0;
err = deflateInit(&c_stream, Z_DEFAULT_COMPRESSION);
CHECK_ERR(err, "deflateInit");
c_stream.next_in = (Bytef*)hello;
c_stream.next_out = compr;
c_stream.avail_in = 3;
c_stream.avail_out = (uInt)*comprLen;
err = deflate(&c_stream, Z_FULL_FLUSH);
CHECK_ERR(err, "deflate");
compr[3]++; /* force an error in first compressed block */
c_stream.avail_in = len - 3;
err = deflate(&c_stream, Z_FINISH);
if (err != Z_STREAM_END) {
CHECK_ERR(err, "deflate");
}
err = deflateEnd(&c_stream);
CHECK_ERR(err, "deflateEnd");
*comprLen = c_stream.total_out;
}
/* ===========================================================================
* Test inflateSync()
*/
void test_sync(compr, comprLen, uncompr, uncomprLen)
Byte *compr, *uncompr;
uLong comprLen, uncomprLen;
{
int err;
z_stream d_stream; /* decompression stream */
strcpy((char*)uncompr, "garbage");
d_stream.zalloc = (alloc_func)0;
d_stream.zfree = (free_func)0;
d_stream.opaque = (voidpf)0;
d_stream.next_in = compr;
d_stream.avail_in = 2; /* just read the zlib header */
err = inflateInit(&d_stream);
CHECK_ERR(err, "inflateInit");
d_stream.next_out = uncompr;
d_stream.avail_out = (uInt)uncomprLen;
inflate(&d_stream, Z_NO_FLUSH);
CHECK_ERR(err, "inflate");
d_stream.avail_in = (uInt)comprLen-2; /* read all compressed data */
err = inflateSync(&d_stream); /* but skip the damaged part */
CHECK_ERR(err, "inflateSync");
err = inflate(&d_stream, Z_FINISH);
if (err != Z_DATA_ERROR) {
fprintf(stderr, "inflate should report DATA_ERROR\n");
/* Because of incorrect adler32 */
exit(1);
}
err = inflateEnd(&d_stream);
CHECK_ERR(err, "inflateEnd");
printf("after inflateSync(): hel%s\n", (char *)uncompr);
}
/* ===========================================================================
* Test deflate() with preset dictionary
*/
void test_dict_deflate(compr, comprLen)
Byte *compr;
uLong comprLen;
{
z_stream c_stream; /* compression stream */
int err;
c_stream.zalloc = (alloc_func)0;
c_stream.zfree = (free_func)0;
c_stream.opaque = (voidpf)0;
err = deflateInit(&c_stream, Z_BEST_COMPRESSION);
CHECK_ERR(err, "deflateInit");
err = deflateSetDictionary(&c_stream,
(const Bytef*)dictionary, sizeof(dictionary));
CHECK_ERR(err, "deflateSetDictionary");
dictId = c_stream.adler;
c_stream.next_out = compr;
c_stream.avail_out = (uInt)comprLen;
c_stream.next_in = (Bytef*)hello;
c_stream.avail_in = (uInt)strlen(hello)+1;
err = deflate(&c_stream, Z_FINISH);
if (err != Z_STREAM_END) {
fprintf(stderr, "deflate should report Z_STREAM_END\n");
exit(1);
}
err = deflateEnd(&c_stream);
CHECK_ERR(err, "deflateEnd");
}
/* ===========================================================================
* Test inflate() with a preset dictionary
*/
void test_dict_inflate(compr, comprLen, uncompr, uncomprLen)
Byte *compr, *uncompr;
uLong comprLen, uncomprLen;
{
int err;
z_stream d_stream; /* decompression stream */
strcpy((char*)uncompr, "garbage");
d_stream.zalloc = (alloc_func)0;
d_stream.zfree = (free_func)0;
d_stream.opaque = (voidpf)0;
d_stream.next_in = compr;
d_stream.avail_in = (uInt)comprLen;
err = inflateInit(&d_stream);
CHECK_ERR(err, "inflateInit");
d_stream.next_out = uncompr;
d_stream.avail_out = (uInt)uncomprLen;
for (;;) {
err = inflate(&d_stream, Z_NO_FLUSH);
if (err == Z_STREAM_END) break;
if (err == Z_NEED_DICT) {
if (d_stream.adler != dictId) {
fprintf(stderr, "unexpected dictionary");
exit(1);
}
err = inflateSetDictionary(&d_stream, (const Bytef*)dictionary,
sizeof(dictionary));
}
CHECK_ERR(err, "inflate with dict");
}
err = inflateEnd(&d_stream);
CHECK_ERR(err, "inflateEnd");
if (strcmp((char*)uncompr, hello)) {
fprintf(stderr, "bad inflate with dict\n");
exit(1);
} else {
printf("inflate with dictionary: %s\n", (char *)uncompr);
}
}
/* ===========================================================================
* Usage: example [output.gz [input.gz]]
*/
int main(argc, argv)
int argc;
char *argv[];
{
Byte *compr, *uncompr;
uLong comprLen = 10000*sizeof(int); /* don't overflow on MSDOS */
uLong uncomprLen = comprLen;
static const char* myVersion = ZLIB_VERSION;
if (zlibVersion()[0] != myVersion[0]) {
fprintf(stderr, "incompatible zlib version\n");
exit(1);
} else if (strcmp(zlibVersion(), ZLIB_VERSION) != 0) {
fprintf(stderr, "warning: different zlib version\n");
}
printf("zlib version %s = 0x%04x, compile flags = 0x%lx\n",
ZLIB_VERSION, ZLIB_VERNUM, zlibCompileFlags());
compr = (Byte*)calloc((uInt)comprLen, 1);
uncompr = (Byte*)calloc((uInt)uncomprLen, 1);
/* compr and uncompr are cleared to avoid reading uninitialized
* data and to ensure that uncompr compresses well.
*/
if (compr == Z_NULL || uncompr == Z_NULL) {
printf("out of memory\n");
exit(1);
}
test_compress(compr, comprLen, uncompr, uncomprLen);
test_gzio((argc > 1 ? argv[1] : TESTFILE),
uncompr, uncomprLen);
test_deflate(compr, comprLen);
test_inflate(compr, comprLen, uncompr, uncomprLen);
test_large_deflate(compr, comprLen, uncompr, uncomprLen);
test_large_inflate(compr, comprLen, uncompr, uncomprLen);
test_flush(compr, &comprLen);
test_sync(compr, comprLen, uncompr, uncomprLen);
comprLen = uncomprLen;
test_dict_deflate(compr, comprLen);
test_dict_inflate(compr, comprLen, uncompr, uncomprLen);
free(compr);
free(uncompr);
return 0;
}

1027
ExternalLibs/glpng/zlib/gzio.c
View file

File diff suppressed because it is too large Load diff

94
ExternalLibs/glpng/zlib/infback.c
View file

@ -1,5 +1,5 @@
/* infback.c -- inflate using a call-back interface
* Copyright (C) 1995-2005 Mark Adler
* Copyright (C) 1995-2009 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*/
@ -55,7 +55,7 @@ int stream_size;
state->wbits = windowBits;
state->wsize = 1U << windowBits;
state->window = window;
state->write = 0;
state->wnext = 0;
state->whave = 0;
return Z_OK;
}
@ -253,7 +253,7 @@ void FAR *out_desc;
unsigned bits; /* bits in bit buffer */
unsigned copy; /* number of stored or match bytes to copy */
unsigned char FAR *from; /* where to copy match bytes from */
code this; /* current decoding table entry */
code here; /* current decoding table entry */
code last; /* parent table entry */
unsigned len; /* length to copy for repeats, bits to drop */
int ret; /* return code */
@ -389,19 +389,19 @@ void FAR *out_desc;
state->have = 0;
while (state->have < state->nlen + state->ndist) {
for (;;) {
this = state->lencode[BITS(state->lenbits)];
if ((unsigned)(this.bits) <= bits) break;
here = state->lencode[BITS(state->lenbits)];
if ((unsigned)(here.bits) <= bits) break;
PULLBYTE();
}
if (this.val < 16) {
NEEDBITS(this.bits);
DROPBITS(this.bits);
state->lens[state->have++] = this.val;
if (here.val < 16) {
NEEDBITS(here.bits);
DROPBITS(here.bits);
state->lens[state->have++] = here.val;
}
else {
if (this.val == 16) {
NEEDBITS(this.bits + 2);
DROPBITS(this.bits);
if (here.val == 16) {
NEEDBITS(here.bits + 2);
DROPBITS(here.bits);
if (state->have == 0) {
strm->msg = (char *)"invalid bit length repeat";
state->mode = BAD;
@ -411,16 +411,16 @@ void FAR *out_desc;
copy = 3 + BITS(2);
DROPBITS(2);
}
else if (this.val == 17) {
NEEDBITS(this.bits + 3);
DROPBITS(this.bits);
else if (here.val == 17) {
NEEDBITS(here.bits + 3);
DROPBITS(here.bits);
len = 0;
copy = 3 + BITS(3);
DROPBITS(3);
}
else {
NEEDBITS(this.bits + 7);
DROPBITS(this.bits);
NEEDBITS(here.bits + 7);
DROPBITS(here.bits);
len = 0;
copy = 11 + BITS(7);
DROPBITS(7);
@ -438,7 +438,16 @@ void FAR *out_desc;
/* handle error breaks in while */
if (state->mode == BAD) break;
/* build code tables */
/* check for end-of-block code (better have one) */
if (state->lens[256] == 0) {
strm->msg = (char *)"invalid code -- missing end-of-block";
state->mode = BAD;
break;
}
/* build code tables -- note: do not change the lenbits or distbits
values here (9 and 6) without reading the comments in inftrees.h
concerning the ENOUGH constants, which depend on those values */
state->next = state->codes;
state->lencode = (code const FAR *)(state->next);
state->lenbits = 9;
@ -474,28 +483,28 @@ void FAR *out_desc;
/* get a literal, length, or end-of-block code */
for (;;) {
this = state->lencode[BITS(state->lenbits)];
if ((unsigned)(this.bits) <= bits) break;
here = state->lencode[BITS(state->lenbits)];
if ((unsigned)(here.bits) <= bits) break;
PULLBYTE();
}
if (this.op && (this.op & 0xf0) == 0) {
last = this;
if (here.op && (here.op & 0xf0) == 0) {
last = here;
for (;;) {
this = state->lencode[last.val +
here = state->lencode[last.val +
(BITS(last.bits + last.op) >> last.bits)];
if ((unsigned)(last.bits + this.bits) <= bits) break;
if ((unsigned)(last.bits + here.bits) <= bits) break;
PULLBYTE();
}
DROPBITS(last.bits);
}
DROPBITS(this.bits);
state->length = (unsigned)this.val;
DROPBITS(here.bits);
state->length = (unsigned)here.val;
/* process literal */
if (this.op == 0) {
Tracevv((stderr, this.val >= 0x20 && this.val < 0x7f ?
if (here.op == 0) {
Tracevv((stderr, here.val >= 0x20 && here.val < 0x7f ?
"inflate: literal '%c'\n" :
"inflate: literal 0x%02x\n", this.val));
"inflate: literal 0x%02x\n", here.val));
ROOM();
*put++ = (unsigned char)(state->length);
left--;
@ -504,21 +513,21 @@ void FAR *out_desc;
}
/* process end of block */
if (this.op & 32) {
if (here.op & 32) {
Tracevv((stderr, "inflate: end of block\n"));
state->mode = TYPE;
break;
}
/* invalid code */
if (this.op & 64) {
if (here.op & 64) {
strm->msg = (char *)"invalid literal/length code";
state->mode = BAD;
break;
}
/* length code -- get extra bits, if any */
state->extra = (unsigned)(this.op) & 15;
state->extra = (unsigned)(here.op) & 15;
if (state->extra != 0) {
NEEDBITS(state->extra);
state->length += BITS(state->extra);
@ -528,30 +537,30 @@ void FAR *out_desc;
/* get distance code */
for (;;) {
this = state->distcode[BITS(state->distbits)];
if ((unsigned)(this.bits) <= bits) break;
here = state->distcode[BITS(state->distbits)];
if ((unsigned)(here.bits) <= bits) break;
PULLBYTE();
}
if ((this.op & 0xf0) == 0) {
last = this;
if ((here.op & 0xf0) == 0) {
last = here;
for (;;) {
this = state->distcode[last.val +
here = state->distcode[last.val +
(BITS(last.bits + last.op) >> last.bits)];
if ((unsigned)(last.bits + this.bits) <= bits) break;
if ((unsigned)(last.bits + here.bits) <= bits) break;
PULLBYTE();
}
DROPBITS(last.bits);
}
DROPBITS(this.bits);
if (this.op & 64) {
DROPBITS(here.bits);
if (here.op & 64) {
strm->msg = (char *)"invalid distance code";
state->mode = BAD;
break;
}
state->offset = (unsigned)this.val;
state->offset = (unsigned)here.val;
/* get distance extra bits, if any */
state->extra = (unsigned)(this.op) & 15;
state->extra = (unsigned)(here.op) & 15;
if (state->extra != 0) {
NEEDBITS(state->extra);
state->offset += BITS(state->extra);
@ -621,4 +630,3 @@ z_streamp strm;
Tracev((stderr, "inflate: end\n"));
return Z_OK;
}

81
ExternalLibs/glpng/zlib/inffast.c
View file

@ -1,5 +1,5 @@
/* inffast.c -- fast decoding
* Copyright (C) 1995-2004 Mark Adler
* Copyright (C) 1995-2008, 2010 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*/
@ -64,7 +64,7 @@
requires strm->avail_out >= 258 for each loop to avoid checking for
output space.
*/
void inflate_fast(strm, start)
void ZLIB_INTERNAL inflate_fast(strm, start)
z_streamp strm;
unsigned start; /* inflate()'s starting value for strm->avail_out */
{
@ -79,7 +79,7 @@ unsigned start; /* inflate()'s starting value for strm->avail_out */
#endif
unsigned wsize; /* window size or zero if not using window */
unsigned whave; /* valid bytes in the window */
unsigned write; /* window write index */
unsigned wnext; /* window write index */
unsigned char FAR *window; /* allocated sliding window, if wsize != 0 */
unsigned long hold; /* local strm->hold */
unsigned bits; /* local strm->bits */
@ -87,7 +87,7 @@ unsigned start; /* inflate()'s starting value for strm->avail_out */
code const FAR *dcode; /* local strm->distcode */
unsigned lmask; /* mask for first level of length codes */
unsigned dmask; /* mask for first level of distance codes */
code this; /* retrieved table entry */
code here; /* retrieved table entry */
unsigned op; /* code bits, operation, extra bits, or */
/* window position, window bytes to copy */
unsigned len; /* match length, unused bytes */
@ -106,7 +106,7 @@ unsigned start; /* inflate()'s starting value for strm->avail_out */
#endif
wsize = state->wsize;
whave = state->whave;
write = state->write;
wnext = state->wnext;
window = state->window;
hold = state->hold;
bits = state->bits;
@ -124,20 +124,20 @@ unsigned start; /* inflate()'s starting value for strm->avail_out */
hold += (unsigned long)(PUP(in)) << bits;
bits += 8;
}
this = lcode[hold & lmask];
here = lcode[hold & lmask];
dolen:
op = (unsigned)(this.bits);
op = (unsigned)(here.bits);
hold >>= op;
bits -= op;
op = (unsigned)(this.op);
op = (unsigned)(here.op);
if (op == 0) { /* literal */
Tracevv((stderr, this.val >= 0x20 && this.val < 0x7f ?
Tracevv((stderr, here.val >= 0x20 && here.val < 0x7f ?
"inflate: literal '%c'\n" :
"inflate: literal 0x%02x\n", this.val));
PUP(out) = (unsigned char)(this.val);
"inflate: literal 0x%02x\n", here.val));
PUP(out) = (unsigned char)(here.val);
}
else if (op & 16) { /* length base */
len = (unsigned)(this.val);
len = (unsigned)(here.val);
op &= 15; /* number of extra bits */
if (op) {
if (bits < op) {
@ -155,14 +155,14 @@ unsigned start; /* inflate()'s starting value for strm->avail_out */
hold += (unsigned long)(PUP(in)) << bits;
bits += 8;
}
this = dcode[hold & dmask];
here = dcode[hold & dmask];
dodist:
op = (unsigned)(this.bits);
op = (unsigned)(here.bits);
hold >>= op;
bits -= op;
op = (unsigned)(this.op);
op = (unsigned)(here.op);
if (op & 16) { /* distance base */
dist = (unsigned)(this.val);
dist = (unsigned)(here.val);
op &= 15; /* number of extra bits */
if (bits < op) {
hold += (unsigned long)(PUP(in)) << bits;
@ -187,12 +187,34 @@ unsigned start; /* inflate()'s starting value for strm->avail_out */
if (dist > op) { /* see if copy from window */
op = dist - op; /* distance back in window */
if (op > whave) {
strm->msg = (char *)"invalid distance too far back";
state->mode = BAD;
break;
if (state->sane) {
strm->msg =
(char *)"invalid distance too far back";
state->mode = BAD;
break;
}
#ifdef INFLATE_ALLOW_INVALID_DISTANCE_TOOFAR_ARRR
if (len <= op - whave) {
do {
PUP(out) = 0;
} while (--len);
continue;
}
len -= op - whave;
do {
PUP(out) = 0;
} while (--op > whave);
if (op == 0) {
from = out - dist;
do {
PUP(out) = PUP(from);
} while (--len);
continue;
}
#endif
}
from = window - OFF;
if (write == 0) { /* very common case */
if (wnext == 0) { /* very common case */
from += wsize - op;
if (op < len) { /* some from window */
len -= op;
@ -202,17 +224,17 @@ unsigned start; /* inflate()'s starting value for strm->avail_out */
from = out - dist; /* rest from output */
}
}
else if (write < op) { /* wrap around window */
from += wsize + write - op;
op -= write;
else if (wnext < op) { /* wrap around window */
from += wsize + wnext - op;
op -= wnext;
if (op < len) { /* some from end of window */
len -= op;
do {
PUP(out) = PUP(from);
} while (--op);
from = window - OFF;
if (write < len) { /* some from start of window */
op = write;
if (wnext < len) { /* some from start of window */
op = wnext;
len -= op;
do {
PUP(out) = PUP(from);
@ -222,7 +244,7 @@ unsigned start; /* inflate()'s starting value for strm->avail_out */
}
}
else { /* contiguous in window */
from += write - op;
from += wnext - op;
if (op < len) { /* some from window */
len -= op;
do {
@ -259,7 +281,7 @@ unsigned start; /* inflate()'s starting value for strm->avail_out */
}
}
else if ((op & 64) == 0) { /* 2nd level distance code */
this = dcode[this.val + (hold & ((1U << op) - 1))];
here = dcode[here.val + (hold & ((1U << op) - 1))];
goto dodist;
}
else {
@ -269,7 +291,7 @@ unsigned start; /* inflate()'s starting value for strm->avail_out */
}
}
else if ((op & 64) == 0) { /* 2nd level length code */
this = lcode[this.val + (hold & ((1U << op) - 1))];
here = lcode[here.val + (hold & ((1U << op) - 1))];
goto dolen;
}
else if (op & 32) { /* end-of-block */
@ -305,7 +327,7 @@ unsigned start; /* inflate()'s starting value for strm->avail_out */
inflate_fast() speedups that turned out slower (on a PowerPC G3 750CXe):
- Using bit fields for code structure
- Different op definition to avoid & for extra bits (do & for table bits)
- Three separate decoding do-loops for direct, window, and write == 0
- Three separate decoding do-loops for direct, window, and wnext == 0
- Special case for distance > 1 copies to do overlapped load and store copy
- Explicit branch predictions (based on measured branch probabilities)
- Deferring match copy and interspersed it with decoding subsequent codes
@ -316,4 +338,3 @@ unsigned start; /* inflate()'s starting value for strm->avail_out */
*/
#endif /* !ASMINF */

4
ExternalLibs/glpng/zlib/inffast.h
View file

@ -1,5 +1,5 @@
/* inffast.h -- header to use inffast.c
* Copyright (C) 1995-2003 Mark Adler
* Copyright (C) 1995-2003, 2010 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*/
@ -8,4 +8,4 @@
subject to change. Applications should only use zlib.h.
*/
void inflate_fast OF((z_streamp strm, unsigned start));
void ZLIB_INTERNAL inflate_fast OF((z_streamp strm, unsigned start));

281
ExternalLibs/glpng/zlib/inflate.c
View file

@ -1,5 +1,5 @@
/* inflate.c -- zlib decompression
* Copyright (C) 1995-2005 Mark Adler
* Copyright (C) 1995-2010 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*/
@ -45,7 +45,7 @@
* - Rearrange window copies in inflate_fast() for speed and simplification
* - Unroll last copy for window match in inflate_fast()
* - Use local copies of window variables in inflate_fast() for speed
* - Pull out common write == 0 case for speed in inflate_fast()
* - Pull out common wnext == 0 case for speed in inflate_fast()
* - Make op and len in inflate_fast() unsigned for consistency
* - Add FAR to lcode and dcode declarations in inflate_fast()
* - Simplified bad distance check in inflate_fast()
@ -117,28 +117,52 @@ z_streamp strm;
state->head = Z_NULL;
state->wsize = 0;
state->whave = 0;
state->write = 0;
state->wnext = 0;
state->hold = 0;
state->bits = 0;
state->lencode = state->distcode = state->next = state->codes;
state->sane = 1;
state->back = -1;
Tracev((stderr, "inflate: reset\n"));
return Z_OK;
}
int ZEXPORT inflatePrime(strm, bits, value)
int ZEXPORT inflateReset2(strm, windowBits)
z_streamp strm;
int bits;
int value;
int windowBits;
{
int wrap;
struct inflate_state FAR *state;
/* get the state */
if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR;
state = (struct inflate_state FAR *)strm->state;
if (bits > 16 || state->bits + bits > 32) return Z_STREAM_ERROR;
value &= (1L << bits) - 1;
state->hold += value << state->bits;
state->bits += bits;
return Z_OK;
/* extract wrap request from windowBits parameter */
if (windowBits < 0) {
wrap = 0;
windowBits = -windowBits;
}
else {
wrap = (windowBits >> 4) + 1;
#ifdef GUNZIP
if (windowBits < 48)
windowBits &= 15;
#endif
}
/* set number of window bits, free window if different */
if (windowBits && (windowBits < 8 || windowBits > 15))
return Z_STREAM_ERROR;
if (state->window != Z_NULL && state->wbits != (unsigned)windowBits) {
ZFREE(strm, state->window);
state->window = Z_NULL;
}
/* update state and reset the rest of it */
state->wrap = wrap;
state->wbits = (unsigned)windowBits;
return inflateReset(strm);
}
int ZEXPORT inflateInit2_(strm, windowBits, version, stream_size)
@ -147,6 +171,7 @@ int windowBits;
const char *version;
int stream_size;
{
int ret;
struct inflate_state FAR *state;
if (version == Z_NULL || version[0] != ZLIB_VERSION[0] ||
@ -164,24 +189,13 @@ int stream_size;
if (state == Z_NULL) return Z_MEM_ERROR;
Tracev((stderr, "inflate: allocated\n"));
strm->state = (struct internal_state FAR *)state;
if (windowBits < 0) {
state->wrap = 0;
windowBits = -windowBits;
}
else {
state->wrap = (windowBits >> 4) + 1;
#ifdef GUNZIP
if (windowBits < 48) windowBits &= 15;
#endif
}
if (windowBits < 8 || windowBits > 15) {
state->window = Z_NULL;
ret = inflateReset2(strm, windowBits);
if (ret != Z_OK) {
ZFREE(strm, state);
strm->state = Z_NULL;
return Z_STREAM_ERROR;
}
state->wbits = (unsigned)windowBits;
state->window = Z_NULL;
return inflateReset(strm);
return ret;
}
int ZEXPORT inflateInit_(strm, version, stream_size)
@ -192,6 +206,27 @@ int stream_size;
return inflateInit2_(strm, DEF_WBITS, version, stream_size);
}
int ZEXPORT inflatePrime(strm, bits, value)
z_streamp strm;
int bits;
int value;
{
struct inflate_state FAR *state;
if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR;
state = (struct inflate_state FAR *)strm->state;
if (bits < 0) {
state->hold = 0;
state->bits = 0;
return Z_OK;
}
if (bits > 16 || state->bits + bits > 32) return Z_STREAM_ERROR;
value &= (1L << bits) - 1;
state->hold += value << state->bits;
state->bits += bits;
return Z_OK;
}
/*
Return state with length and distance decoding tables and index sizes set to
fixed code decoding. Normally this returns fixed tables from inffixed.h.
@ -340,7 +375,7 @@ unsigned out;
/* if window not in use yet, initialize */
if (state->wsize == 0) {
state->wsize = 1U << state->wbits;
state->write = 0;
state->wnext = 0;
state->whave = 0;
}
@ -348,22 +383,22 @@ unsigned out;
copy = out - strm->avail_out;
if (copy >= state->wsize) {
zmemcpy(state->window, strm->next_out - state->wsize, state->wsize);
state->write = 0;
state->wnext = 0;
state->whave = state->wsize;
}
else {
dist = state->wsize - state->write;
dist = state->wsize - state->wnext;
if (dist > copy) dist = copy;
zmemcpy(state->window + state->write, strm->next_out - copy, dist);
zmemcpy(state->window + state->wnext, strm->next_out - copy, dist);
copy -= dist;
if (copy) {
zmemcpy(state->window, strm->next_out - copy, copy);
state->write = copy;
state->wnext = copy;
state->whave = state->wsize;
}
else {
state->write += dist;
if (state->write == state->wsize) state->write = 0;
state->wnext += dist;
if (state->wnext == state->wsize) state->wnext = 0;
if (state->whave < state->wsize) state->whave += dist;
}
}
@ -564,7 +599,7 @@ int flush;
unsigned in, out; /* save starting available input and output */
unsigned copy; /* number of stored or match bytes to copy */
unsigned char FAR *from; /* where to copy match bytes from */
code this; /* current decoding table entry */
code here; /* current decoding table entry */
code last; /* parent table entry */
unsigned len; /* length to copy for repeats, bits to drop */
int ret; /* return code */
@ -619,7 +654,9 @@ int flush;
}
DROPBITS(4);
len = BITS(4) + 8;
if (len > state->wbits) {
if (state->wbits == 0)
state->wbits = len;
else if (len > state->wbits) {
strm->msg = (char *)"invalid window size";
state->mode = BAD;
break;
@ -771,7 +808,7 @@ int flush;
strm->adler = state->check = adler32(0L, Z_NULL, 0);
state->mode = TYPE;
case TYPE:
if (flush == Z_BLOCK) goto inf_leave;
if (flush == Z_BLOCK || flush == Z_TREES) goto inf_leave;
case TYPEDO:
if (state->last) {
BYTEBITS();
@ -791,7 +828,11 @@ int flush;
fixedtables(state);
Tracev((stderr, "inflate: fixed codes block%s\n",
state->last ? " (last)" : ""));
state->mode = LEN; /* decode codes */
state->mode = LEN_; /* decode codes */
if (flush == Z_TREES) {
DROPBITS(2);
goto inf_leave;
}
break;
case 2: /* dynamic block */
Tracev((stderr, "inflate: dynamic codes block%s\n",
@ -816,6 +857,9 @@ int flush;
Tracev((stderr, "inflate: stored length %u\n",
state->length));
INITBITS();
state->mode = COPY_;
if (flush == Z_TREES) goto inf_leave;
case COPY_:
state->mode = COPY;
case COPY:
copy = state->length;
@ -876,19 +920,19 @@ int flush;
case CODELENS:
while (state->have < state->nlen + state->ndist) {
for (;;) {
this = state->lencode[BITS(state->lenbits)];
if ((unsigned)(this.bits) <= bits) break;
here = state->lencode[BITS(state->lenbits)];
if ((unsigned)(here.bits) <= bits) break;
PULLBYTE();
}
if (this.val < 16) {
NEEDBITS(this.bits);
DROPBITS(this.bits);
state->lens[state->have++] = this.val;
if (here.val < 16) {
NEEDBITS(here.bits);
DROPBITS(here.bits);
state->lens[state->have++] = here.val;
}
else {
if (this.val == 16) {
NEEDBITS(this.bits + 2);
DROPBITS(this.bits);
if (here.val == 16) {
NEEDBITS(here.bits + 2);
DROPBITS(here.bits);
if (state->have == 0) {
strm->msg = (char *)"invalid bit length repeat";
state->mode = BAD;
@ -898,16 +942,16 @@ int flush;
copy = 3 + BITS(2);
DROPBITS(2);
}
else if (this.val == 17) {
NEEDBITS(this.bits + 3);
DROPBITS(this.bits);
else if (here.val == 17) {
NEEDBITS(here.bits + 3);
DROPBITS(here.bits);
len = 0;
copy = 3 + BITS(3);
DROPBITS(3);
}
else {
NEEDBITS(this.bits + 7);
DROPBITS(this.bits);
NEEDBITS(here.bits + 7);
DROPBITS(here.bits);
len = 0;
copy = 11 + BITS(7);
DROPBITS(7);
@ -925,7 +969,16 @@ int flush;
/* handle error breaks in while */
if (state->mode == BAD) break;
/* build code tables */
/* check for end-of-block code (better have one) */
if (state->lens[256] == 0) {
strm->msg = (char *)"invalid code -- missing end-of-block";
state->mode = BAD;
break;
}
/* build code tables -- note: do not change the lenbits or distbits
values here (9 and 6) without reading the comments in inftrees.h
concerning the ENOUGH constants, which depend on those values */
state->next = state->codes;
state->lencode = (code const FAR *)(state->next);
state->lenbits = 9;
@ -946,88 +999,102 @@ int flush;
break;
}
Tracev((stderr, "inflate: codes ok\n"));
state->mode = LEN_;
if (flush == Z_TREES) goto inf_leave;
case LEN_:
state->mode = LEN;
case LEN:
if (have >= 6 && left >= 258) {
RESTORE();
inflate_fast(strm, out);
LOAD();
if (state->mode == TYPE)
state->back = -1;
break;
}
state->back = 0;
for (;;) {
this = state->lencode[BITS(state->lenbits)];
if ((unsigned)(this.bits) <= bits) break;
here = state->lencode[BITS(state->lenbits)];
if ((unsigned)(here.bits) <= bits) break;
PULLBYTE();
}
if (this.op && (this.op & 0xf0) == 0) {
last = this;
if (here.op && (here.op & 0xf0) == 0) {
last = here;
for (;;) {
this = state->lencode[last.val +
here = state->lencode[last.val +
(BITS(last.bits + last.op) >> last.bits)];
if ((unsigned)(last.bits + this.bits) <= bits) break;
if ((unsigned)(last.bits + here.bits) <= bits) break;
PULLBYTE();
}
DROPBITS(last.bits);
state->back += last.bits;
}
DROPBITS(this.bits);
state->length = (unsigned)this.val;
if ((int)(this.op) == 0) {
Tracevv((stderr, this.val >= 0x20 && this.val < 0x7f ?
DROPBITS(here.bits);
state->back += here.bits;
state->length = (unsigned)here.val;
if ((int)(here.op) == 0) {
Tracevv((stderr, here.val >= 0x20 && here.val < 0x7f ?
"inflate: literal '%c'\n" :
"inflate: literal 0x%02x\n", this.val));
"inflate: literal 0x%02x\n", here.val));
state->mode = LIT;
break;
}
if (this.op & 32) {
if (here.op & 32) {
Tracevv((stderr, "inflate: end of block\n"));
state->back = -1;
state->mode = TYPE;
break;
}
if (this.op & 64) {
if (here.op & 64) {
strm->msg = (char *)"invalid literal/length code";
state->mode = BAD;
break;
}
state->extra = (unsigned)(this.op) & 15;
state->extra = (unsigned)(here.op) & 15;
state->mode = LENEXT;
case LENEXT:
if (state->extra) {
NEEDBITS(state->extra);
state->length += BITS(state->extra);
DROPBITS(state->extra);
state->back += state->extra;
}
Tracevv((stderr, "inflate: length %u\n", state->length));
state->was = state->length;
state->mode = DIST;
case DIST:
for (;;) {
this = state->distcode[BITS(state->distbits)];
if ((unsigned)(this.bits) <= bits) break;
here = state->distcode[BITS(state->distbits)];
if ((unsigned)(here.bits) <= bits) break;
PULLBYTE();
}
if ((this.op & 0xf0) == 0) {
last = this;
if ((here.op & 0xf0) == 0) {
last = here;
for (;;) {
this = state->distcode[last.val +
here = state->distcode[last.val +
(BITS(last.bits + last.op) >> last.bits)];
if ((unsigned)(last.bits + this.bits) <= bits) break;
if ((unsigned)(last.bits + here.bits) <= bits) break;
PULLBYTE();
}
DROPBITS(last.bits);
state->back += last.bits;
}
DROPBITS(this.bits);
if (this.op & 64) {
DROPBITS(here.bits);
state->back += here.bits;
if (here.op & 64) {
strm->msg = (char *)"invalid distance code";
state->mode = BAD;
break;
}
state->offset = (unsigned)this.val;
state->extra = (unsigned)(this.op) & 15;
state->offset = (unsigned)here.val;
state->extra = (unsigned)(here.op) & 15;
state->mode = DISTEXT;
case DISTEXT:
if (state->extra) {
NEEDBITS(state->extra);
state->offset += BITS(state->extra);
DROPBITS(state->extra);
state->back += state->extra;
}
#ifdef INFLATE_STRICT
if (state->offset > state->dmax) {
@ -1036,11 +1103,6 @@ int flush;
break;
}
#endif
if (state->offset > state->whave + out - left) {
strm->msg = (char *)"invalid distance too far back";
state->mode = BAD;
break;
}
Tracevv((stderr, "inflate: distance %u\n", state->offset));
state->mode = MATCH;
case MATCH:
@ -1048,12 +1110,32 @@ int flush;
copy = out - left;
if (state->offset > copy) { /* copy from window */
copy = state->offset - copy;
if (copy > state->write) {
copy -= state->write;
if (copy > state->whave) {
if (state->sane) {
strm->msg = (char *)"invalid distance too far back";
state->mode = BAD;
break;
}
#ifdef INFLATE_ALLOW_INVALID_DISTANCE_TOOFAR_ARRR
Trace((stderr, "inflate.c too far\n"));
copy -= state->whave;
if (copy > state->length) copy = state->length;
if (copy > left) copy = left;
left -= copy;
state->length -= copy;
do {
*put++ = 0;
} while (--copy);
if (state->length == 0) state->mode = LEN;
break;
#endif
}
if (copy > state->wnext) {
copy -= state->wnext;
from = state->window + (state->wsize - copy);
}
else
from = state->window + (state->write - copy);
from = state->window + (state->wnext - copy);
if (copy > state->length) copy = state->length;
}
else { /* copy from output */
@ -1146,7 +1228,8 @@ int flush;
strm->adler = state->check =
UPDATE(state->check, strm->next_out - out, out);
strm->data_type = state->bits + (state->last ? 64 : 0) +
(state->mode == TYPE ? 128 : 0);
(state->mode == TYPE ? 128 : 0) +
(state->mode == LEN_ || state->mode == COPY_ ? 256 : 0);
if (((in == 0 && out == 0) || flush == Z_FINISH) && ret == Z_OK)
ret = Z_BUF_ERROR;
return ret;
@ -1367,3 +1450,31 @@ z_streamp source;
return Z_OK;
}
int ZEXPORT inflateUndermine(strm, subvert)
z_streamp strm;
int subvert;
{
struct inflate_state FAR *state;
if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR;
state = (struct inflate_state FAR *)strm->state;
state->sane = !subvert;
#ifdef INFLATE_ALLOW_INVALID_DISTANCE_TOOFAR_ARRR
return Z_OK;
#else
state->sane = 1;
return Z_DATA_ERROR;
#endif
}
long ZEXPORT inflateMark(strm)
z_streamp strm;
{
struct inflate_state FAR *state;
if (strm == Z_NULL || strm->state == Z_NULL) return -1L << 16;
state = (struct inflate_state FAR *)strm->state;
return ((long)(state->back) << 16) +
(state->mode == COPY ? state->length :
(state->mode == MATCH ? state->was - state->length : 0));
}

31
ExternalLibs/glpng/zlib/inflate.h
View file

@ -1,5 +1,5 @@
/* inflate.h -- internal inflate state definition
* Copyright (C) 1995-2004 Mark Adler
* Copyright (C) 1995-2009 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*/
@ -32,11 +32,13 @@ typedef enum {
TYPE, /* i: waiting for type bits, including last-flag bit */
TYPEDO, /* i: same, but skip check to exit inflate on new block */
STORED, /* i: waiting for stored size (length and complement) */
COPY_, /* i/o: same as COPY below, but only first time in */
COPY, /* i/o: waiting for input or output to copy stored block */
TABLE, /* i: waiting for dynamic block table lengths */
LENLENS, /* i: waiting for code length code lengths */
CODELENS, /* i: waiting for length/lit and distance code lengths */
LEN, /* i: waiting for length/lit code */
LEN_, /* i: same as LEN below, but only first time in */
LEN, /* i: waiting for length/lit/eob code */
LENEXT, /* i: waiting for length extra bits */
DIST, /* i: waiting for distance code */
DISTEXT, /* i: waiting for distance extra bits */
@ -53,19 +55,21 @@ typedef enum {
/*
State transitions between above modes -
(most modes can go to the BAD or MEM mode -- not shown for clarity)
(most modes can go to BAD or MEM on error -- not shown for clarity)
Process header:
HEAD -> (gzip) or (zlib)
(gzip) -> FLAGS -> TIME -> OS -> EXLEN -> EXTRA -> NAME
NAME -> COMMENT -> HCRC -> TYPE
HEAD -> (gzip) or (zlib) or (raw)
(gzip) -> FLAGS -> TIME -> OS -> EXLEN -> EXTRA -> NAME -> COMMENT ->
HCRC -> TYPE
(zlib) -> DICTID or TYPE
DICTID -> DICT -> TYPE
(raw) -> TYPEDO
Read deflate blocks:
TYPE -> STORED or TABLE or LEN or CHECK
STORED -> COPY -> TYPE
TABLE -> LENLENS -> CODELENS -> LEN
Read deflate codes:
TYPE -> TYPEDO -> STORED or TABLE or LEN_ or CHECK
STORED -> COPY_ -> COPY -> TYPE
TABLE -> LENLENS -> CODELENS -> LEN_
LEN_ -> LEN
Read deflate codes in fixed or dynamic block:
LEN -> LENEXT or LIT or TYPE
LENEXT -> DIST -> DISTEXT -> MATCH -> LEN
LIT -> LEN
@ -73,7 +77,7 @@ typedef enum {
CHECK -> LENGTH -> DONE
*/
/* state maintained between inflate() calls. Approximately 7K bytes. */
/* state maintained between inflate() calls. Approximately 10K bytes. */
struct inflate_state {
inflate_mode mode; /* current inflate mode */
int last; /* true if processing last block */
@ -88,7 +92,7 @@ struct inflate_state {
unsigned wbits; /* log base 2 of requested window size */
unsigned wsize; /* window size or zero if not using window */
unsigned whave; /* valid bytes in the window */
unsigned write; /* window write index */
unsigned wnext; /* window write index */
unsigned char FAR *window; /* allocated sliding window, if needed */
/* bit accumulator */
unsigned long hold; /* input bit accumulator */
@ -112,4 +116,7 @@ struct inflate_state {
unsigned short lens[320]; /* temporary storage for code lengths */
unsigned short work[288]; /* work area for code table building */
code codes[ENOUGH]; /* space for code tables */
int sane; /* if false, allow invalid distance too far */
int back; /* bits back of last unprocessed length/lit */
unsigned was; /* initial length of match */
};

64
ExternalLibs/glpng/zlib/inftrees.c
View file

@ -1,5 +1,5 @@
/* inftrees.c -- generate Huffman trees for efficient decoding
* Copyright (C) 1995-2005 Mark Adler
* Copyright (C) 1995-2010 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*/
@ -9,7 +9,7 @@
#define MAXBITS 15
const char inflate_copyright[] =
" inflate 1.2.3 Copyright 1995-2005 Mark Adler ";
" inflate 1.2.5 Copyright 1995-2010 Mark Adler ";
/*
If you use the zlib library in a product, an acknowledgment is welcome
in the documentation of your product. If for some reason you cannot
@ -29,7 +29,7 @@ const char inflate_copyright[] =
table index bits. It will differ if the request is greater than the
longest code or if it is less than the shortest code.
*/
int inflate_table(type, lens, codes, table, bits, work)
int ZLIB_INTERNAL inflate_table(type, lens, codes, table, bits, work)
codetype type;
unsigned short FAR *lens;
unsigned codes;
@ -50,7 +50,7 @@ unsigned short FAR *work;
unsigned fill; /* index for replicating entries */
unsigned low; /* low bits for current root entry */
unsigned mask; /* mask for low root bits */
code this; /* table entry for duplication */
code here; /* table entry for duplication */
code FAR *next; /* next available space in table */
const unsigned short FAR *base; /* base value table to use */
const unsigned short FAR *extra; /* extra bits table to use */
@ -62,7 +62,7 @@ unsigned short FAR *work;
35, 43, 51, 59, 67, 83, 99, 115, 131, 163, 195, 227, 258, 0, 0};
static const unsigned short lext[31] = { /* Length codes 257..285 extra */
16, 16, 16, 16, 16, 16, 16, 16, 17, 17, 17, 17, 18, 18, 18, 18,
19, 19, 19, 19, 20, 20, 20, 20, 21, 21, 21, 21, 16, 201, 196};
19, 19, 19, 19, 20, 20, 20, 20, 21, 21, 21, 21, 16, 73, 195};
static const unsigned short dbase[32] = { /* Distance codes 0..29 base */
1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33, 49, 65, 97, 129, 193,
257, 385, 513, 769, 1025, 1537, 2049, 3073, 4097, 6145,
@ -115,15 +115,15 @@ unsigned short FAR *work;
if (count[max] != 0) break;
if (root > max) root = max;
if (max == 0) { /* no symbols to code at all */
this.op = (unsigned char)64; /* invalid code marker */
this.bits = (unsigned char)1;
this.val = (unsigned short)0;
*(*table)++ = this; /* make a table to force an error */
*(*table)++ = this;
here.op = (unsigned char)64; /* invalid code marker */
here.bits = (unsigned char)1;
here.val = (unsigned short)0;
*(*table)++ = here; /* make a table to force an error */
*(*table)++ = here;
*bits = 1;
return 0; /* no symbols, but wait for decoding to report error */
}
for (min = 1; min <= MAXBITS; min++)
for (min = 1; min < max; min++)
if (count[min] != 0) break;
if (root < min) root = min;
@ -166,11 +166,10 @@ unsigned short FAR *work;
entered in the tables.
used keeps track of how many table entries have been allocated from the
provided *table space. It is checked when a LENS table is being made
against the space in *table, ENOUGH, minus the maximum space needed by
the worst case distance code, MAXD. This should never happen, but the
sufficiency of ENOUGH has not been proven exhaustively, hence the check.
This assumes that when type == LENS, bits == 9.
provided *table space. It is checked for LENS and DIST tables against
the constants ENOUGH_LENS and ENOUGH_DISTS to guard against changes in
the initial root table size constants. See the comments in inftrees.h
for more information.
sym increments through all symbols, and the loop terminates when
all codes of length max, i.e. all codes, have been processed. This
@ -209,24 +208,25 @@ unsigned short FAR *work;
mask = used - 1; /* mask for comparing low */
/* check available table space */
if (type == LENS && used >= ENOUGH - MAXD)
if ((type == LENS && used >= ENOUGH_LENS) ||
(type == DISTS && used >= ENOUGH_DISTS))
return 1;
/* process all codes and make table entries */
for (;;) {
/* create table entry */
this.bits = (unsigned char)(len - drop);
here.bits = (unsigned char)(len - drop);
if ((int)(work[sym]) < end) {
this.op = (unsigned char)0;
this.val = work[sym];
here.op = (unsigned char)0;
here.val = work[sym];
}
else if ((int)(work[sym]) > end) {
this.op = (unsigned char)(extra[work[sym]]);
this.val = base[work[sym]];
here.op = (unsigned char)(extra[work[sym]]);
here.val = base[work[sym]];
}
else {
this.op = (unsigned char)(32 + 64); /* end of block */
this.val = 0;
here.op = (unsigned char)(32 + 64); /* end of block */
here.val = 0;
}
/* replicate for those indices with low len bits equal to huff */
@ -235,7 +235,7 @@ unsigned short FAR *work;
min = fill; /* save offset to next table */
do {
fill -= incr;
next[(huff >> drop) + fill] = this;
next[(huff >> drop) + fill] = here;
} while (fill != 0);
/* backwards increment the len-bit code huff */
@ -277,7 +277,8 @@ unsigned short FAR *work;
/* check for enough space */
used += 1U << curr;
if (type == LENS && used >= ENOUGH - MAXD)
if ((type == LENS && used >= ENOUGH_LENS) ||
(type == DISTS && used >= ENOUGH_DISTS))
return 1;
/* point entry in root table to sub-table */
@ -295,20 +296,20 @@ unsigned short FAR *work;
through high index bits. When the current sub-table is filled, the loop
drops back to the root table to fill in any remaining entries there.
*/
this.op = (unsigned char)64; /* invalid code marker */
this.bits = (unsigned char)(len - drop);
this.val = (unsigned short)0;
here.op = (unsigned char)64; /* invalid code marker */
here.bits = (unsigned char)(len - drop);
here.val = (unsigned short)0;
while (huff != 0) {
/* when done with sub-table, drop back to root table */
if (drop != 0 && (huff & mask) != low) {
drop = 0;
len = root;
next = *table;
this.bits = (unsigned char)len;
here.bits = (unsigned char)len;
}
/* put invalid code marker in table */
next[huff >> drop] = this;
next[huff >> drop] = here;
/* backwards increment the len-bit code huff */
incr = 1U << (len - 1);
@ -327,4 +328,3 @@ unsigned short FAR *work;
*bits = root;
return 0;
}

27
ExternalLibs/glpng/zlib/inftrees.h
View file

@ -1,5 +1,5 @@
/* inftrees.h -- header to use inftrees.c
* Copyright (C) 1995-2005 Mark Adler
* Copyright (C) 1995-2005, 2010 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*/
@ -35,21 +35,28 @@ typedef struct {
01000000 - invalid code
*/
/* Maximum size of dynamic tree. The maximum found in a long but non-
exhaustive search was 1444 code structures (852 for length/literals
and 592 for distances, the latter actually the result of an
exhaustive search). The true maximum is not known, but the value
below is more than safe. */
#define ENOUGH 2048
#define MAXD 592
/* Maximum size of the dynamic table. The maximum number of code structures is
1444, which is the sum of 852 for literal/length codes and 592 for distance
codes. These values were found by exhaustive searches using the program
examples/enough.c found in the zlib distribtution. The arguments to that
program are the number of symbols, the initial root table size, and the
maximum bit length of a code. "enough 286 9 15" for literal/length codes
returns returns 852, and "enough 30 6 15" for distance codes returns 592.
The initial root table size (9 or 6) is found in the fifth argument of the
inflate_table() calls in inflate.c and infback.c. If the root table size is
changed, then these maximum sizes would be need to be recalculated and
updated. */
#define ENOUGH_LENS 852
#define ENOUGH_DISTS 592
#define ENOUGH (ENOUGH_LENS+ENOUGH_DISTS)
/* Type of code to build for inftable() */
/* Type of code to build for inflate_table() */
typedef enum {
CODES,
LENS,
DISTS
} codetype;
extern int inflate_table OF((codetype type, unsigned short FAR *lens,
int ZLIB_INTERNAL inflate_table OF((codetype type, unsigned short FAR *lens,
unsigned codes, code FAR * FAR *table,
unsigned FAR *bits, unsigned short FAR *work));

323
ExternalLibs/glpng/zlib/minigzip.c
View file

@ -1,323 +0,0 @@
/* minigzip.c -- simulate gzip using the zlib compression library
* Copyright (C) 1995-2005 Jean-loup Gailly.
* For conditions of distribution and use, see copyright notice in zlib.h
*/
/*
* minigzip is a minimal implementation of the gzip utility. This is
* only an example of using zlib and isn't meant to replace the
* full-featured gzip. No attempt is made to deal with file systems
* limiting names to 14 or 8+3 characters, etc... Error checking is
* very limited. So use minigzip only for testing; use gzip for the
* real thing. On MSDOS, use only on file names without extension
* or in pipe mode.
*/
/* @(#) $Id$ */
#include <stdio.h>
#include "zlib.h"
#ifdef STDC
# include <string.h>
# include <stdlib.h>
#endif
#ifdef USE_MMAP
# include <sys/types.h>
# include <sys/mman.h>
# include <sys/stat.h>
#endif
#if defined(MSDOS) || defined(OS2) || defined(WIN32) || defined(__CYGWIN__)
# include <fcntl.h>
# include <io.h>
# define SET_BINARY_MODE(file) setmode(fileno(file), O_BINARY)
#else
# define SET_BINARY_MODE(file)
#endif
#ifdef VMS
# define unlink delete
# define GZ_SUFFIX "-gz"
#endif
#ifdef RISCOS
# define unlink remove
# define GZ_SUFFIX "-gz"
# define fileno(file) file->__file
#endif
#if defined(__MWERKS__) && __dest_os != __be_os && __dest_os != __win32_os
# include <unix.h> /* for fileno */
#endif
#ifndef WIN32 /* unlink already in stdio.h for WIN32 */
extern int unlink OF((const char *));
#endif
#ifndef GZ_SUFFIX
# define GZ_SUFFIX ".gz"
#endif
#define SUFFIX_LEN (sizeof(GZ_SUFFIX)-1)
#define BUFLEN 16384
#define MAX_NAME_LEN 1024
#ifdef MAXSEG_64K
# define local static
/* Needed for systems with limitation on stack size. */
#else
# define local
#endif
char *prog;
void error OF((const char *msg));
void gz_compress OF((FILE *in, gzFile out));
#ifdef USE_MMAP
int gz_compress_mmap OF((FILE *in, gzFile out));
#endif
void gz_uncompress OF((gzFile in, FILE *out));
void file_compress OF((char *file, char *mode));
void file_uncompress OF((char *file));
int main OF((int argc, char *argv[]));
/* ===========================================================================
* Display error message and exit
*/
void error(msg)
const char *msg;
{
fprintf(stderr, "%s: %s\n", prog, msg);
exit(1);
}
/* ===========================================================================
* Compress input to output then close both files.
*/
void gz_compress(in, out)
FILE *in;
gzFile out;
{
local char buf[BUFLEN];
int len;
int err;
#ifdef USE_MMAP
/* Try first compressing with mmap. If mmap fails (minigzip used in a
* pipe), use the normal fread loop.
*/
if (gz_compress_mmap(in, out) == Z_OK) return;
#endif
for (;;) {
len = (int)fread(buf, 1, sizeof(buf), in);
if (ferror(in)) {
perror("fread");
exit(1);
}
if (len == 0) break;
if (gzwrite(out, buf, (unsigned)len) != len) error(gzerror(out, &err));
}
fclose(in);
if (gzclose(out) != Z_OK) error("failed gzclose");
}
#ifdef USE_MMAP /* MMAP version, Miguel Albrecht <malbrech@eso.org> */
/* Try compressing the input file at once using mmap. Return Z_OK if
* if success, Z_ERRNO otherwise.
*/
int gz_compress_mmap(in, out)
FILE *in;
gzFile out;
{
int len;
int err;
int ifd = fileno(in);
caddr_t buf; /* mmap'ed buffer for the entire input file */
off_t buf_len; /* length of the input file */
struct stat sb;
/* Determine the size of the file, needed for mmap: */
if (fstat(ifd, &sb) < 0) return Z_ERRNO;
buf_len = sb.st_size;
if (buf_len <= 0) return Z_ERRNO;
/* Now do the actual mmap: */
buf = mmap((caddr_t) 0, buf_len, PROT_READ, MAP_SHARED, ifd, (off_t)0);
if (buf == (caddr_t)(-1)) return Z_ERRNO;
/* Compress the whole file at once: */
len = gzwrite(out, (char *)buf, (unsigned)buf_len);
if (len != (int)buf_len) error(gzerror(out, &err));
munmap(buf, buf_len);
fclose(in);
if (gzclose(out) != Z_OK) error("failed gzclose");
return Z_OK;
}
#endif /* USE_MMAP */
/* ===========================================================================
* Uncompress input to output then close both files.
*/
void gz_uncompress(in, out)
gzFile in;
FILE *out;
{
local char buf[BUFLEN];
int len;
int err;
for (;;) {
len = gzread(in, buf, sizeof(buf));
if (len < 0) error (gzerror(in, &err));
if (len == 0) break;
if ((int)fwrite(buf, 1, (unsigned)len, out) != len) {
error("failed fwrite");
}
}
if (fclose(out)) error("failed fclose");
if (gzclose(in) != Z_OK) error("failed gzclose");
}
/* ===========================================================================
* Compress the given file: create a corresponding .gz file and remove the
* original.
*/
void file_compress(file, mode)
char *file;
char *mode;
{
local char outfile[MAX_NAME_LEN];
FILE *in;
gzFile out;
strcpy(outfile, file);
strcat(outfile, GZ_SUFFIX);
in = fopen(file, "rb");
if (in == NULL) {
perror(file);
exit(1);
}
out = gzopen(outfile, mode);
if (out == NULL) {
fprintf(stderr, "%s: can't gzopen %s\n", prog, outfile);
exit(1);
}
gz_compress(in, out);
unlink(file);
}
/* ===========================================================================
* Uncompress the given file and remove the original.
*/
void file_uncompress(file)
char *file;
{
local char buf[MAX_NAME_LEN];
char *infile, *outfile;
FILE *out;
gzFile in;
uInt len = (uInt)strlen(file);
strcpy(buf, file);
if (len > SUFFIX_LEN && strcmp(file+len-SUFFIX_LEN, GZ_SUFFIX) == 0) {
infile = file;
outfile = buf;
outfile[len-3] = '\0';
} else {
outfile = file;
infile = buf;
strcat(infile, GZ_SUFFIX);
}
in = gzopen(infile, "rb");
if (in == NULL) {
fprintf(stderr, "%s: can't gzopen %s\n", prog, infile);
exit(1);
}
out = fopen(outfile, "wb");
if (out == NULL) {
perror(file);
exit(1);
}
gz_uncompress(in, out);
unlink(infile);
}
/* ===========================================================================
* Usage: minigzip [-d] [-f] [-h] [-r] [-1 to -9] [files...]
* -d : decompress
* -f : compress with Z_FILTERED
* -h : compress with Z_HUFFMAN_ONLY
* -r : compress with Z_RLE
* -1 to -9 : compression level
*/
int main(argc, argv)
int argc;
char *argv[];
{
int uncompr = 0;
gzFile file;
char outmode[20];
strcpy(outmode, "wb6 ");
prog = argv[0];
argc--, argv++;
while (argc > 0) {
if (strcmp(*argv, "-d") == 0)
uncompr = 1;
else if (strcmp(*argv, "-f") == 0)
outmode[3] = 'f';
else if (strcmp(*argv, "-h") == 0)
outmode[3] = 'h';
else if (strcmp(*argv, "-r") == 0)
outmode[3] = 'R';
else if ((*argv)[0] == '-' && (*argv)[1] >= '1' && (*argv)[1] <= '9' &&
(*argv)[2] == 0)
outmode[2] = (*argv)[1];
else
break;
argc--, argv++;
}
if (outmode[3] == ' ')
outmode[3] = 0;
if (argc == 0) {
SET_BINARY_MODE(stdin);
SET_BINARY_MODE(stdout);
if (uncompr) {
file = gzdopen(fileno(stdin), "rb");
if (file == NULL) error("can't gzdopen stdin");
gz_uncompress(file, stdout);
} else {
file = gzdopen(fileno(stdout), outmode);
if (file == NULL) error("can't gzdopen stdout");
gz_compress(stdin, file);
}
} else {
do {
if (uncompr) {
file_uncompress(*argv);
} else {
file_compress(*argv, outmode);
}
} while (argv++, --argc);
}
return 0;
}

94
ExternalLibs/glpng/zlib/trees.c
View file

@ -1,5 +1,6 @@
/* trees.c -- output deflated data using Huffman coding
* Copyright (C) 1995-2005 Jean-loup Gailly
* Copyright (C) 1995-2010 Jean-loup Gailly
* detect_data_type() function provided freely by Cosmin Truta, 2006
* For conditions of distribution and use, see copyright notice in zlib.h
*/
@ -152,7 +153,7 @@ local void send_all_trees OF((deflate_state *s, int lcodes, int dcodes,
int blcodes));
local void compress_block OF((deflate_state *s, ct_data *ltree,
ct_data *dtree));
local void set_data_type OF((deflate_state *s));
local int detect_data_type OF((deflate_state *s));
local unsigned bi_reverse OF((unsigned value, int length));
local void bi_windup OF((deflate_state *s));
local void bi_flush OF((deflate_state *s));
@ -203,12 +204,12 @@ local void send_bits(s, value, length)
* unused bits in value.
*/
if (s->bi_valid > (int)Buf_size - length) {
s->bi_buf |= (value << s->bi_valid);
s->bi_buf |= (ush)value << s->bi_valid;
put_short(s, s->bi_buf);
s->bi_buf = (ush)value >> (Buf_size - s->bi_valid);
s->bi_valid += length - Buf_size;
} else {
s->bi_buf |= value << s->bi_valid;
s->bi_buf |= (ush)value << s->bi_valid;
s->bi_valid += length;
}
}
@ -218,12 +219,12 @@ local void send_bits(s, value, length)
{ int len = length;\
if (s->bi_valid > (int)Buf_size - len) {\
int val = value;\
s->bi_buf |= (val << s->bi_valid);\
s->bi_buf |= (ush)val << s->bi_valid;\
put_short(s, s->bi_buf);\
s->bi_buf = (ush)val >> (Buf_size - s->bi_valid);\
s->bi_valid += len - Buf_size;\
} else {\
s->bi_buf |= (value) << s->bi_valid;\
s->bi_buf |= (ush)(value) << s->bi_valid;\
s->bi_valid += len;\
}\
}
@ -250,11 +251,13 @@ local void tr_static_init()
if (static_init_done) return;
/* For some embedded targets, global variables are not initialized: */
#ifdef NO_INIT_GLOBAL_POINTERS
static_l_desc.static_tree = static_ltree;
static_l_desc.extra_bits = extra_lbits;
static_d_desc.static_tree = static_dtree;
static_d_desc.extra_bits = extra_dbits;
static_bl_desc.extra_bits = extra_blbits;
#endif
/* Initialize the mapping length (0..255) -> length code (0..28) */
length = 0;
@ -348,13 +351,14 @@ void gen_trees_header()
static_dtree[i].Len, SEPARATOR(i, D_CODES-1, 5));
}
fprintf(header, "const uch _dist_code[DIST_CODE_LEN] = {\n");
fprintf(header, "const uch ZLIB_INTERNAL _dist_code[DIST_CODE_LEN] = {\n");
for (i = 0; i < DIST_CODE_LEN; i++) {
fprintf(header, "%2u%s", _dist_code[i],
SEPARATOR(i, DIST_CODE_LEN-1, 20));
}
fprintf(header, "const uch _length_code[MAX_MATCH-MIN_MATCH+1]= {\n");
fprintf(header,
"const uch ZLIB_INTERNAL _length_code[MAX_MATCH-MIN_MATCH+1]= {\n");
for (i = 0; i < MAX_MATCH-MIN_MATCH+1; i++) {
fprintf(header, "%2u%s", _length_code[i],
SEPARATOR(i, MAX_MATCH-MIN_MATCH, 20));
@ -379,7 +383,7 @@ void gen_trees_header()
/* ===========================================================================
* Initialize the tree data structures for a new zlib stream.
*/
void _tr_init(s)
void ZLIB_INTERNAL _tr_init(s)
deflate_state *s;
{
tr_static_init();
@ -864,13 +868,13 @@ local void send_all_trees(s, lcodes, dcodes, blcodes)
/* ===========================================================================
* Send a stored block
*/
void _tr_stored_block(s, buf, stored_len, eof)
void ZLIB_INTERNAL _tr_stored_block(s, buf, stored_len, last)
deflate_state *s;
charf *buf; /* input block */
ulg stored_len; /* length of input block */
int eof; /* true if this is the last block for a file */
int last; /* one if this is the last block for a file */
{
send_bits(s, (STORED_BLOCK<<1)+eof, 3); /* send block type */
send_bits(s, (STORED_BLOCK<<1)+last, 3); /* send block type */
#ifdef DEBUG
s->compressed_len = (s->compressed_len + 3 + 7) & (ulg)~7L;
s->compressed_len += (stored_len + 4) << 3;
@ -889,7 +893,7 @@ void _tr_stored_block(s, buf, stored_len, eof)
* To simplify the code, we assume the worst case of last real code encoded
* on one bit only.
*/
void _tr_align(s)
void ZLIB_INTERNAL _tr_align(s)
deflate_state *s;
{
send_bits(s, STATIC_TREES<<1, 3);
@ -918,11 +922,11 @@ void _tr_align(s)
* Determine the best encoding for the current block: dynamic trees, static
* trees or store, and output the encoded block to the zip file.
*/
void _tr_flush_block(s, buf, stored_len, eof)
void ZLIB_INTERNAL _tr_flush_block(s, buf, stored_len, last)
deflate_state *s;
charf *buf; /* input block, or NULL if too old */
ulg stored_len; /* length of input block */
int eof; /* true if this is the last block for a file */
int last; /* one if this is the last block for a file */
{
ulg opt_lenb, static_lenb; /* opt_len and static_len in bytes */
int max_blindex = 0; /* index of last bit length code of non zero freq */
@ -931,8 +935,8 @@ void _tr_flush_block(s, buf, stored_len, eof)
if (s->level > 0) {
/* Check if the file is binary or text */
if (stored_len > 0 && s->strm->data_type == Z_UNKNOWN)
set_data_type(s);
if (s->strm->data_type == Z_UNKNOWN)
s->strm->data_type = detect_data_type(s);
/* Construct the literal and distance trees */
build_tree(s, (tree_desc *)(&(s->l_desc)));
@ -978,20 +982,20 @@ void _tr_flush_block(s, buf, stored_len, eof)
* successful. If LIT_BUFSIZE <= WSIZE, it is never too late to
* transform a block into a stored block.
*/
_tr_stored_block(s, buf, stored_len, eof);
_tr_stored_block(s, buf, stored_len, last);
#ifdef FORCE_STATIC
} else if (static_lenb >= 0) { /* force static trees */
#else
} else if (s->strategy == Z_FIXED || static_lenb == opt_lenb) {
#endif
send_bits(s, (STATIC_TREES<<1)+eof, 3);
send_bits(s, (STATIC_TREES<<1)+last, 3);
compress_block(s, (ct_data *)static_ltree, (ct_data *)static_dtree);
#ifdef DEBUG
s->compressed_len += 3 + s->static_len;
#endif
} else {
send_bits(s, (DYN_TREES<<1)+eof, 3);
send_bits(s, (DYN_TREES<<1)+last, 3);
send_all_trees(s, s->l_desc.max_code+1, s->d_desc.max_code+1,
max_blindex+1);
compress_block(s, (ct_data *)s->dyn_ltree, (ct_data *)s->dyn_dtree);
@ -1005,21 +1009,21 @@ void _tr_flush_block(s, buf, stored_len, eof)
*/
init_block(s);
if (eof) {
if (last) {
bi_windup(s);
#ifdef DEBUG
s->compressed_len += 7; /* align on byte boundary */
#endif
}
Tracev((stderr,"\ncomprlen %lu(%lu) ", s->compressed_len>>3,
s->compressed_len-7*eof));
s->compressed_len-7*last));
}
/* ===========================================================================
* Save the match info and tally the frequency counts. Return true if
* the current block must be flushed.
*/
int _tr_tally (s, dist, lc)
int ZLIB_INTERNAL _tr_tally (s, dist, lc)
deflate_state *s;
unsigned dist; /* distance of matched string */
unsigned lc; /* match length-MIN_MATCH or unmatched char (if dist==0) */
@ -1118,24 +1122,45 @@ local void compress_block(s, ltree, dtree)
}
/* ===========================================================================
* Set the data type to BINARY or TEXT, using a crude approximation:
* set it to Z_TEXT if all symbols are either printable characters (33 to 255)
* or white spaces (9 to 13, or 32); or set it to Z_BINARY otherwise.
* Check if the data type is TEXT or BINARY, using the following algorithm:
* - TEXT if the two conditions below are satisfied:
* a) There are no non-portable control characters belonging to the
* "black list" (0..6, 14..25, 28..31).
* b) There is at least one printable character belonging to the
* "white list" (9 {TAB}, 10 {LF}, 13 {CR}, 32..255).
* - BINARY otherwise.
* - The following partially-portable control characters form a
* "gray list" that is ignored in this detection algorithm:
* (7 {BEL}, 8 {BS}, 11 {VT}, 12 {FF}, 26 {SUB}, 27 {ESC}).
* IN assertion: the fields Freq of dyn_ltree are set.
*/
local void set_data_type(s)
local int detect_data_type(s)
deflate_state *s;
{
/* black_mask is the bit mask of black-listed bytes
* set bits 0..6, 14..25, and 28..31
* 0xf3ffc07f = binary 11110011111111111100000001111111
*/
unsigned long black_mask = 0xf3ffc07fUL;
int n;
for (n = 0; n < 9; n++)
/* Check for non-textual ("black-listed") bytes. */
for (n = 0; n <= 31; n++, black_mask >>= 1)
if ((black_mask & 1) && (s->dyn_ltree[n].Freq != 0))
return Z_BINARY;
/* Check for textual ("white-listed") bytes. */
if (s->dyn_ltree[9].Freq != 0 || s->dyn_ltree[10].Freq != 0
|| s->dyn_ltree[13].Freq != 0)
return Z_TEXT;
for (n = 32; n < LITERALS; n++)
if (s->dyn_ltree[n].Freq != 0)
break;
if (n == 9)
for (n = 14; n < 32; n++)
if (s->dyn_ltree[n].Freq != 0)
break;
s->strm->data_type = (n == 32) ? Z_TEXT : Z_BINARY;
return Z_TEXT;
/* There are no "black-listed" or "white-listed" bytes:
* this stream either is empty or has tolerated ("gray-listed") bytes only.
*/
return Z_BINARY;
}
/* ===========================================================================
@ -1217,4 +1242,3 @@ local void copy_block(s, buf, len, header)
put_byte(s, *buf++);
}
}

4
ExternalLibs/glpng/zlib/trees.h
View file

@ -70,7 +70,7 @@ local const ct_data static_dtree[D_CODES] = {
{{19},{ 5}}, {{11},{ 5}}, {{27},{ 5}}, {{ 7},{ 5}}, {{23},{ 5}}
};
const uch _dist_code[DIST_CODE_LEN] = {
const uch ZLIB_INTERNAL _dist_code[DIST_CODE_LEN] = {
0, 1, 2, 3, 4, 4, 5, 5, 6, 6, 6, 6, 7, 7, 7, 7, 8, 8, 8, 8,
8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 9, 9, 10, 10, 10, 10, 10, 10, 10, 10,
10, 10, 10, 10, 10, 10, 10, 10, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11,
@ -99,7 +99,7 @@ const uch _dist_code[DIST_CODE_LEN] = {
29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29
};
const uch _length_code[MAX_MATCH-MIN_MATCH+1]= {
const uch ZLIB_INTERNAL _length_code[MAX_MATCH-MIN_MATCH+1]= {
0, 1, 2, 3, 4, 5, 6, 7, 8, 8, 9, 9, 10, 10, 11, 11, 12, 12, 12, 12,
13, 13, 13, 13, 14, 14, 14, 14, 15, 15, 15, 15, 16, 16, 16, 16, 16, 16, 16, 16,
17, 17, 17, 17, 17, 17, 17, 17, 18, 18, 18, 18, 18, 18, 18, 18, 19, 19, 19, 19,

5
ExternalLibs/glpng/zlib/uncompr.c
View file

@ -1,5 +1,5 @@
/* uncompr.c -- decompress a memory buffer
* Copyright (C) 1995-2003 Jean-loup Gailly.
* Copyright (C) 1995-2003, 2010 Jean-loup Gailly.
* For conditions of distribution and use, see copyright notice in zlib.h
*/
@ -16,8 +16,6 @@
been saved previously by the compressor and transmitted to the decompressor
by some mechanism outside the scope of this compression library.)
Upon exit, destLen is the actual size of the compressed buffer.
This function can be used to decompress a whole file at once if the
input file is mmap'ed.
uncompress returns Z_OK if success, Z_MEM_ERROR if there was not
enough memory, Z_BUF_ERROR if there was not enough room in the output
@ -59,4 +57,3 @@ int ZEXPORT uncompress (dest, destLen, source, sourceLen)
err = inflateEnd(&stream);
return err;
}

206
ExternalLibs/glpng/zlib/zconf.h
View file

@ -1,5 +1,5 @@
/* zconf.h -- configuration of the zlib compression library
* Copyright (C) 1995-2005 Jean-loup Gailly.
* Copyright (C) 1995-2010 Jean-loup Gailly.
* For conditions of distribution and use, see copyright notice in zlib.h
*/
@ -11,52 +11,124 @@
/*
* If you *really* need a unique prefix for all types and library functions,
* compile with -DZ_PREFIX. The "standard" zlib should be compiled without it.
* Even better than compiling with -DZ_PREFIX would be to use configure to set
* this permanently in zconf.h using "./configure --zprefix".
*/
#ifdef Z_PREFIX
# define deflateInit_ z_deflateInit_
# define deflate z_deflate
# define deflateEnd z_deflateEnd
# define inflateInit_ z_inflateInit_
# define inflate z_inflate
# define inflateEnd z_inflateEnd
# define deflateInit2_ z_deflateInit2_
# define deflateSetDictionary z_deflateSetDictionary
# define deflateCopy z_deflateCopy
# define deflateReset z_deflateReset
# define deflateParams z_deflateParams
# define deflateBound z_deflateBound
# define deflatePrime z_deflatePrime
# define inflateInit2_ z_inflateInit2_
# define inflateSetDictionary z_inflateSetDictionary
# define inflateSync z_inflateSync
# define inflateSyncPoint z_inflateSyncPoint
# define inflateCopy z_inflateCopy
# define inflateReset z_inflateReset
# define inflateBack z_inflateBack
# define inflateBackEnd z_inflateBackEnd
#ifdef Z_PREFIX /* may be set to #if 1 by ./configure */
/* all linked symbols */
# define _dist_code z__dist_code
# define _length_code z__length_code
# define _tr_align z__tr_align
# define _tr_flush_block z__tr_flush_block
# define _tr_init z__tr_init
# define _tr_stored_block z__tr_stored_block
# define _tr_tally z__tr_tally
# define adler32 z_adler32
# define adler32_combine z_adler32_combine
# define adler32_combine64 z_adler32_combine64
# define compress z_compress
# define compress2 z_compress2
# define compressBound z_compressBound
# define uncompress z_uncompress
# define adler32 z_adler32
# define crc32 z_crc32
# define crc32_combine z_crc32_combine
# define crc32_combine64 z_crc32_combine64
# define deflate z_deflate
# define deflateBound z_deflateBound
# define deflateCopy z_deflateCopy
# define deflateEnd z_deflateEnd
# define deflateInit2_ z_deflateInit2_
# define deflateInit_ z_deflateInit_
# define deflateParams z_deflateParams
# define deflatePrime z_deflatePrime
# define deflateReset z_deflateReset
# define deflateSetDictionary z_deflateSetDictionary
# define deflateSetHeader z_deflateSetHeader
# define deflateTune z_deflateTune
# define deflate_copyright z_deflate_copyright
# define get_crc_table z_get_crc_table
# define gz_error z_gz_error
# define gz_intmax z_gz_intmax
# define gz_strwinerror z_gz_strwinerror
# define gzbuffer z_gzbuffer
# define gzclearerr z_gzclearerr
# define gzclose z_gzclose
# define gzclose_r z_gzclose_r
# define gzclose_w z_gzclose_w
# define gzdirect z_gzdirect
# define gzdopen z_gzdopen
# define gzeof z_gzeof
# define gzerror z_gzerror
# define gzflush z_gzflush
# define gzgetc z_gzgetc
# define gzgets z_gzgets
# define gzoffset z_gzoffset
# define gzoffset64 z_gzoffset64
# define gzopen z_gzopen
# define gzopen64 z_gzopen64
# define gzprintf z_gzprintf
# define gzputc z_gzputc
# define gzputs z_gzputs
# define gzread z_gzread
# define gzrewind z_gzrewind
# define gzseek z_gzseek
# define gzseek64 z_gzseek64
# define gzsetparams z_gzsetparams
# define gztell z_gztell
# define gztell64 z_gztell64
# define gzungetc z_gzungetc
# define gzwrite z_gzwrite
# define inflate z_inflate
# define inflateBack z_inflateBack
# define inflateBackEnd z_inflateBackEnd
# define inflateBackInit_ z_inflateBackInit_
# define inflateCopy z_inflateCopy
# define inflateEnd z_inflateEnd
# define inflateGetHeader z_inflateGetHeader
# define inflateInit2_ z_inflateInit2_
# define inflateInit_ z_inflateInit_
# define inflateMark z_inflateMark
# define inflatePrime z_inflatePrime
# define inflateReset z_inflateReset
# define inflateReset2 z_inflateReset2
# define inflateSetDictionary z_inflateSetDictionary
# define inflateSync z_inflateSync
# define inflateSyncPoint z_inflateSyncPoint
# define inflateUndermine z_inflateUndermine
# define inflate_copyright z_inflate_copyright
# define inflate_fast z_inflate_fast
# define inflate_table z_inflate_table
# define uncompress z_uncompress
# define zError z_zError
# define zcalloc z_zcalloc
# define zcfree z_zcfree
# define zlibCompileFlags z_zlibCompileFlags
# define zlibVersion z_zlibVersion
# define alloc_func z_alloc_func
# define free_func z_free_func
# define in_func z_in_func
# define out_func z_out_func
/* all zlib typedefs in zlib.h and zconf.h */
# define Byte z_Byte
# define uInt z_uInt
# define uLong z_uLong
# define Bytef z_Bytef
# define alloc_func z_alloc_func
# define charf z_charf
# define free_func z_free_func
# define gzFile z_gzFile
# define gz_header z_gz_header
# define gz_headerp z_gz_headerp
# define in_func z_in_func
# define intf z_intf
# define out_func z_out_func
# define uInt z_uInt
# define uIntf z_uIntf
# define uLong z_uLong
# define uLongf z_uLongf
# define voidpf z_voidpf
# define voidp z_voidp
# define voidpc z_voidpc
# define voidpf z_voidpf
/* all zlib structs in zlib.h and zconf.h */
# define gz_header_s z_gz_header_s
# define internal_state z_internal_state
#endif
#if defined(__MSDOS__) && !defined(MSDOS)
@ -284,49 +356,73 @@ typedef uLong FAR uLongf;
typedef Byte *voidp;
#endif
#if 0 /* HAVE_UNISTD_H -- this line is updated by ./configure */
# include <sys/types.h> /* for off_t */
# include <unistd.h> /* for SEEK_* and off_t */
# ifdef VMS
# include <unixio.h> /* for off_t */
# endif
# define z_off_t off_t
#ifdef HAVE_UNISTD_H /* may be set to #if 1 by ./configure */
# define Z_HAVE_UNISTD_H
#endif
#ifdef STDC
# include <sys/types.h> /* for off_t */
#endif
/* a little trick to accommodate both "#define _LARGEFILE64_SOURCE" and
* "#define _LARGEFILE64_SOURCE 1" as requesting 64-bit operations, (even
* though the former does not conform to the LFS document), but considering
* both "#undef _LARGEFILE64_SOURCE" and "#define _LARGEFILE64_SOURCE 0" as
* equivalently requesting no 64-bit operations
*/
#if -_LARGEFILE64_SOURCE - -1 == 1
# undef _LARGEFILE64_SOURCE
#endif
#if defined(Z_HAVE_UNISTD_H) || defined(_LARGEFILE64_SOURCE)
# include <unistd.h> /* for SEEK_* and off_t */
# ifdef VMS
# include <unixio.h> /* for off_t */
# endif
# ifndef z_off_t
# define z_off_t off_t
# endif
#endif
#ifndef SEEK_SET
# define SEEK_SET 0 /* Seek from beginning of file. */
# define SEEK_CUR 1 /* Seek from current position. */
# define SEEK_END 2 /* Set file pointer to EOF plus "offset" */
#endif
#ifndef z_off_t
# define z_off_t long
#endif
#if defined(_LARGEFILE64_SOURCE) && _LFS64_LARGEFILE-0
# define z_off64_t off64_t
#else
# define z_off64_t z_off_t
#endif
#if defined(__OS400__)
# define NO_vsnprintf
#endif
#if defined(__MVS__)
# define NO_vsnprintf
# ifdef FAR
# undef FAR
# endif
#endif
/* MVS linker does not support external names larger than 8 bytes */
#if defined(__MVS__)
# pragma map(deflateInit_,"DEIN")
# pragma map(deflateInit2_,"DEIN2")
# pragma map(deflateEnd,"DEEND")
# pragma map(deflateBound,"DEBND")
# pragma map(inflateInit_,"ININ")
# pragma map(inflateInit2_,"ININ2")
# pragma map(inflateEnd,"INEND")
# pragma map(inflateSync,"INSY")
# pragma map(inflateSetDictionary,"INSEDI")
# pragma map(compressBound,"CMBND")
# pragma map(inflate_table,"INTABL")
# pragma map(inflate_fast,"INFA")
# pragma map(inflate_copyright,"INCOPY")
#pragma map(deflateInit_,"DEIN")
#pragma map(deflateInit2_,"DEIN2")
#pragma map(deflateEnd,"DEEND")
#pragma map(deflateBound,"DEBND")
#pragma map(inflateInit_,"ININ")
#pragma map(inflateInit2_,"ININ2")
#pragma map(inflateEnd,"INEND")
#pragma map(inflateSync,"INSY")
#pragma map(inflateSetDictionary,"INSEDI")
#pragma map(compressBound,"CMBND")
#pragma map(inflate_table,"INTABL")
#pragma map(inflate_fast,"INFA")
#pragma map(inflate_copyright,"INCOPY")
#endif
#endif /* ZCONF_H */

1152
ExternalLibs/glpng/zlib/zlib.h
View file

File diff suppressed because it is too large Load diff

33
ExternalLibs/glpng/zlib/zutil.c
View file

@ -1,5 +1,5 @@
/* zutil.c -- target dependent utility functions for the compression library
* Copyright (C) 1995-2005 Jean-loup Gailly.
* Copyright (C) 1995-2005, 2010 Jean-loup Gailly.
* For conditions of distribution and use, see copyright notice in zlib.h
*/
@ -34,25 +34,25 @@ uLong ZEXPORT zlibCompileFlags()
uLong flags;
flags = 0;
switch (sizeof(uInt)) {
switch ((int)(sizeof(uInt))) {
case 2: break;
case 4: flags += 1; break;
case 8: flags += 2; break;
default: flags += 3;
}
switch (sizeof(uLong)) {
switch ((int)(sizeof(uLong))) {
case 2: break;
case 4: flags += 1 << 2; break;
case 8: flags += 2 << 2; break;
default: flags += 3 << 2;
}
switch (sizeof(voidpf)) {
switch ((int)(sizeof(voidpf))) {
case 2: break;
case 4: flags += 1 << 4; break;
case 8: flags += 2 << 4; break;
default: flags += 3 << 4;
}
switch (sizeof(z_off_t)) {
switch ((int)(sizeof(z_off_t))) {
case 2: break;
case 4: flags += 1 << 6; break;
case 8: flags += 2 << 6; break;
@ -117,9 +117,9 @@ uLong ZEXPORT zlibCompileFlags()
# ifndef verbose
# define verbose 0
# endif
int z_verbose = verbose;
int ZLIB_INTERNAL z_verbose = verbose;
void z_error (m)
void ZLIB_INTERNAL z_error (m)
char *m;
{
fprintf(stderr, "%s\n", m);
@ -146,7 +146,7 @@ const char * ZEXPORT zError(err)
#ifndef HAVE_MEMCPY
void zmemcpy(dest, source, len)
void ZLIB_INTERNAL zmemcpy(dest, source, len)
Bytef* dest;
const Bytef* source;
uInt len;
@ -157,7 +157,7 @@ void zmemcpy(dest, source, len)
} while (--len != 0);
}
int zmemcmp(s1, s2, len)
int ZLIB_INTERNAL zmemcmp(s1, s2, len)
const Bytef* s1;
const Bytef* s2;
uInt len;
@ -170,7 +170,7 @@ int zmemcmp(s1, s2, len)
return 0;
}
void zmemzero(dest, len)
void ZLIB_INTERNAL zmemzero(dest, len)
Bytef* dest;
uInt len;
{
@ -213,7 +213,7 @@ local ptr_table table[MAX_PTR];
* a protected system like OS/2. Use Microsoft C instead.
*/
voidpf zcalloc (voidpf opaque, unsigned items, unsigned size)
voidpf ZLIB_INTERNAL zcalloc (voidpf opaque, unsigned items, unsigned size)
{
voidpf buf = opaque; /* just to make some compilers happy */
ulg bsize = (ulg)items*size;
@ -237,7 +237,7 @@ voidpf zcalloc (voidpf opaque, unsigned items, unsigned size)
return buf;
}
void zcfree (voidpf opaque, voidpf ptr)
void ZLIB_INTERNAL zcfree (voidpf opaque, voidpf ptr)
{
int n;
if (*(ush*)&ptr != 0) { /* object < 64K */
@ -272,13 +272,13 @@ void zcfree (voidpf opaque, voidpf ptr)
# define _hfree hfree
#endif
voidpf zcalloc (voidpf opaque, unsigned items, unsigned size)
voidpf ZLIB_INTERNAL zcalloc (voidpf opaque, uInt items, uInt size)
{
if (opaque) opaque = 0; /* to make compiler happy */
return _halloc((long)items, size);
}
void zcfree (voidpf opaque, voidpf ptr)
void ZLIB_INTERNAL zcfree (voidpf opaque, voidpf ptr)
{
if (opaque) opaque = 0; /* to make compiler happy */
_hfree(ptr);
@ -297,7 +297,7 @@ extern voidp calloc OF((uInt items, uInt size));
extern void free OF((voidpf ptr));
#endif
voidpf zcalloc (opaque, items, size)
voidpf ZLIB_INTERNAL zcalloc (opaque, items, size)
voidpf opaque;
unsigned items;
unsigned size;
@ -307,7 +307,7 @@ voidpf zcalloc (opaque, items, size)
(voidpf)calloc(items, size);
}
void zcfree (opaque, ptr)
void ZLIB_INTERNAL zcfree (opaque, ptr)
voidpf opaque;
voidpf ptr;
{
@ -316,4 +316,3 @@ void zcfree (opaque, ptr)
}
#endif /* MY_ZCALLOC */

63
ExternalLibs/glpng/zlib/zutil.h
View file

@ -1,5 +1,5 @@
/* zutil.h -- internal interface and configuration of the compression library
* Copyright (C) 1995-2005 Jean-loup Gailly.
* Copyright (C) 1995-2010 Jean-loup Gailly.
* For conditions of distribution and use, see copyright notice in zlib.h
*/
@ -13,31 +13,21 @@
#ifndef ZUTIL_H
#define ZUTIL_H
#define ZLIB_INTERNAL
#if ((__GNUC__-0) * 10 + __GNUC_MINOR__-0 >= 33) && !defined(NO_VIZ)
# define ZLIB_INTERNAL __attribute__((visibility ("hidden")))
#else
# define ZLIB_INTERNAL
#endif
#include "zlib.h"
#ifdef STDC
# ifndef _WIN32_WCE
# if !(defined(_WIN32_WCE) && defined(_MSC_VER))
# include <stddef.h>
# endif
# include <string.h>
# include <stdlib.h>
#endif
#ifdef NO_ERRNO_H
# ifdef _WIN32_WCE
/* The Microsoft C Run-Time Library for Windows CE doesn't have
* errno. We define it as a global variable to simplify porting.
* Its value is always 0 and should not be used. We rename it to
* avoid conflict with other libraries that use the same workaround.
*/
# define errno z_errno
# endif
extern int errno;
#else
# ifndef _WIN32_WCE
# include <errno.h>
# endif
#endif
#ifndef local
# define local static
@ -89,7 +79,7 @@ extern const char * const z_errmsg[10]; /* indexed by 2-zlib_error */
#if defined(MSDOS) || (defined(WINDOWS) && !defined(WIN32))
# define OS_CODE 0x00
# if defined(__TURBOC__) || defined(__BORLANDC__)
# if(__STDC__ == 1) && (defined(__LARGE__) || defined(__COMPACT__))
# if (__STDC__ == 1) && (defined(__LARGE__) || defined(__COMPACT__))
/* Allow compilation with ANSI keywords only enabled */
void _Cdecl farfree( void *block );
void *_Cdecl farmalloc( unsigned long nbytes );
@ -118,7 +108,7 @@ extern const char * const z_errmsg[10]; /* indexed by 2-zlib_error */
#ifdef OS2
# define OS_CODE 0x06
# ifdef M_I86
#include <malloc.h>
# include <malloc.h>
# endif
#endif
@ -151,7 +141,7 @@ extern const char * const z_errmsg[10]; /* indexed by 2-zlib_error */
# define fdopen(fd,mode) NULL /* No fdopen() */
#endif
#if (defined(_MSC_VER) && (_MSC_VER > 600))
#if (defined(_MSC_VER) && (_MSC_VER > 600)) && !defined __INTERIX
# if defined(_WIN32_WCE)
# define fdopen(fd,mode) NULL /* No fdopen() */
# ifndef _PTRDIFF_T_DEFINED
@ -163,6 +153,18 @@ extern const char * const z_errmsg[10]; /* indexed by 2-zlib_error */
# endif
#endif
#if defined(__BORLANDC__)
#pragma warn -8004
#pragma warn -8008
#pragma warn -8066
#endif
/* provide prototypes for these when building zlib without LFS */
#if !defined(_LARGEFILE64_SOURCE) || _LFS64_LARGEFILE-0 == 0
ZEXTERN uLong ZEXPORT adler32_combine64 OF((uLong, uLong, z_off_t));
ZEXTERN uLong ZEXPORT crc32_combine64 OF((uLong, uLong, z_off_t));
#endif
/* common defaults */
#ifndef OS_CODE
@ -197,7 +199,9 @@ extern const char * const z_errmsg[10]; /* indexed by 2-zlib_error */
# ifdef WIN32
/* In Win32, vsnprintf is available as the "non-ANSI" _vsnprintf. */
# if !defined(vsnprintf) && !defined(NO_vsnprintf)
# define vsnprintf _vsnprintf
# if !defined(_MSC_VER) || ( defined(_MSC_VER) && _MSC_VER < 1500 )
# define vsnprintf _vsnprintf
# endif
# endif
# endif
# ifdef __SASC
@ -232,16 +236,16 @@ extern const char * const z_errmsg[10]; /* indexed by 2-zlib_error */
# define zmemzero(dest, len) memset(dest, 0, len)
# endif
#else
extern void zmemcpy OF((Bytef* dest, const Bytef* source, uInt len));
extern int zmemcmp OF((const Bytef* s1, const Bytef* s2, uInt len));
extern void zmemzero OF((Bytef* dest, uInt len));
void ZLIB_INTERNAL zmemcpy OF((Bytef* dest, const Bytef* source, uInt len));
int ZLIB_INTERNAL zmemcmp OF((const Bytef* s1, const Bytef* s2, uInt len));
void ZLIB_INTERNAL zmemzero OF((Bytef* dest, uInt len));
#endif
/* Diagnostic functions */
#ifdef DEBUG
# include <stdio.h>
extern int z_verbose;
extern void z_error OF((char *m));
extern int ZLIB_INTERNAL z_verbose;
extern void ZLIB_INTERNAL z_error OF((char *m));
# define Assert(cond,msg) {if(!(cond)) z_error(msg);}
# define Trace(x) {if (z_verbose>=0) fprintf x ;}
# define Tracev(x) {if (z_verbose>0) fprintf x ;}
@ -258,8 +262,9 @@ extern const char * const z_errmsg[10]; /* indexed by 2-zlib_error */
#endif
voidpf zcalloc OF((voidpf opaque, unsigned items, unsigned size));
void zcfree OF((voidpf opaque, voidpf ptr));
voidpf ZLIB_INTERNAL zcalloc OF((voidpf opaque, unsigned items,
unsigned size));
void ZLIB_INTERNAL zcfree OF((voidpf opaque, voidpf ptr));
#define ZALLOC(strm, items, size) \
(*((strm)->zalloc))((strm)->opaque, (items), (size))

4
ExternalLibs/libogg-1.2.0/AUTHORS
View file

@ -1,4 +0,0 @@
Monty <monty@xiph.org>
and the rest of the Xiph.Org Foundation.

49
ExternalLibs/libogg-1.2.0/CHANGES
View file

@ -1,49 +0,0 @@
Version 1.2.0 (2010 March 25)
* Alter default flushing behavior to span less often and use larger page
sizes when packet sizes are large.
* Build fixes for additional compilers
* Documentation updates
Version 1.1.4 (2009 June 24)
* New async error reporting mechanism. Calls made after a fatal error are
now safely handled in the event an error code is ignored
* Added allocation checks useful to some embedded applications
* fix possible read past end of buffer when reading 0 bits
* Updates to API documentation
* Build fixes
Version 1.1.3 (2005 November 27)
* Correct a bug in the granulepos field of pages where no packet ends
* New VS2003 and XCode builds, minor fixes to other builds
* documentation fixes and cleanup
Version 1.1.2 (2004 September 23)
* fix a bug with multipage packet assembly after seek
Version 1.1.1 (2004 September 12)
* various bugfixes
* important bugfix for 64-bit platforms
* various portability fixes
* autotools cleanup from Thomas Vander Stichele
* Symbian OS build support from Colin Ward at CSIRO
* new multiplexed Ogg stream documentation
Version 1.1 (2003 November 17)
* big-endian bitpacker routines for Theora
* various portability fixes
* improved API documenation
* RFC 3533 documentation of the format by Silvia Pfeiffer at CSIRO
* RFC 3534 documentation of the application/ogg mime-type by Linus Walleij
Version 1.0 (2002 July 19)
* First stable release
* little-endian bitpacker routines for Vorbis
* basic Ogg bitstream sync and coding support

30
ExternalLibs/libogg-1.2.0/Makefile.am
View file

@ -1,30 +0,0 @@
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SUBDIRS = src include doc
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m4data_DATA = ogg.m4
pkgconfigdir = $(libdir)/pkgconfig
pkgconfig_DATA = ogg.pc
EXTRA_DIST = README AUTHORS CHANGES COPYING \
libogg.spec libogg.spec.in \
ogg.m4 ogg.pc.in ogg-uninstalled.pc.in \
macos macosx win32
dist-hook:
for item in $(EXTRA_DIST); do \
if test -d $$item; then \
echo -n "cleaning dir $$item for distribution..."; \
rm -rf `find $(distdir)/$$item -name .svn`; \
echo "OK"; \
fi; \
done
debug:
$(MAKE) all CFLAGS="@DEBUG@"
profile:
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717
ExternalLibs/libogg-1.2.0/Makefile.in
View file

@ -1,717 +0,0 @@
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********************************************************************
* *
* THIS FILE IS PART OF THE OggVorbis SOFTWARE CODEC SOURCE CODE. *
* USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS *
* GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE *
* IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. *
* *
* THE OggVorbis SOURCE CODE IS (C) COPYRIGHT 1994-2002 *
* by the Xiph.Org Foundation http://www.xiph.org/ *
* *
********************************************************************
WHAT'S HERE:
This source distribution includes libogg and nothing else. Other modules
(eg, the modules vorbis, vorbis-tools and vorbis-plugins for the Vorbis
codec) contain the codec libraries for use with Ogg bitstreams.
Directory:
./src The source for libogg, a BSD-license inplementation of
the public domain Ogg bitstream format
./include Library API headers and codebooks
./doc Ogg specification documents
./win32 Win32 projects and build automation
./macosx MacOS X project and build files
./macos Classic MacOS 9 projects and build automation
./debian Rules/spec files for building Debian .deb packages
(may not be present, depending on your distribution)
WHAT IS OGG?:
Ogg project codecs use the Ogg bitstream format to arrange the raw,
compressed bitstream into a more robust, useful form. For example,
the Ogg bitstream makes seeking, time stamping and error recovery
possible, as well as mixing several sepearate, concurrent media
streams into a single physical bitstream.
CONTACT:
The Ogg homepage is located at 'http://www.xiph.org/ogg/'.
Up to date technical documents, contact information, source code and
pre-built utilities may be found there.
BUILDING FROM REPOSITORY SOURCE:
A standard svn build should consist of nothing more than:
./autogen.sh
make
and as root if desired :
make install
This will install the Ogg libraries (static and shared) into
/usr/local/lib, includes into /usr/local/include and API manpages
(once we write some) into /usr/local/man.
BUILDING FROM TARBALL DISTRIBUTIONS:
./configure
make
and optionally (as root):
make install
BUILDING RPMS:
RPMs may be built by:
make dist
rpm -ta libogg-<version>.tar.gz
BUILDING ON WIN32:
Use the project file in the win32 directory. It should compile out of the box.
You can also run one of the batch files from the commandline.
E.g.: build_ogg_dynamic
CROSS COMPILING FROM LINUX TO WIN32:
It is also possible to cross compile from Linux to windows using the MinGW
cross tools and even to run the test suite under Wine, the Linux/*nix
windows emulator.
On Debian and Ubuntu systems, these cross compiler tools can be installed
by doing:
sudo apt-get mingw32 mingw32-binutils mingw32-runtime wine
Once these tools are installed its possible to compile and test by
executing the following commands:
./configure --host=i586-mingw32msvc --target=i586-mingw32msvc \
--build=i586-linux
make
make check
The above has been tested with the following versions of the tools on
Ubuntu's Hardy Heron release:
mingw32 4.2.1.dfsg-1ubuntu1
mingw32-binutils 2.17.50-20070129.1-1
mingw32-runtime 3.13-1
wine 0.9.59-0ubuntu4
BUILDING ON MACOS 9:
Ogg on MacOS 9 is built using CodeWarrior 5.3. To build it, first
open ogg/mac/libogg.mcp, switch to the "Targets" pane, select
everything, and make the project. In ogg/mac/Output you will now have
both debug and final versions of Ogg shared libraries to link your
projects against.
To build a project using Ogg, add access paths to your CodeWarrior
project for the ogg/include and ogg/mac/Output folders. Be sure that
"interpret DOS and Unix paths" is turned on in your project; it can be
found in the "access paths" pane in your project settings. Now simply
add the shared libraries you need to your project (OggLib at least)
and #include "ogg/ogg.h" wherever you need to acces Ogg functionality.
(Build instructions for Ogg codecs such as vorbis are similar and may
be found in those source modules' README files)
$Id: README 14726 2008-04-14 08:40:46Z erikd $

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ExternalLibs/libogg-1.2.0/compile
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#! /bin/sh
# Wrapper for compilers which do not understand `-c -o'.
scriptversion=2005-05-14.22
# Copyright (C) 1999, 2000, 2003, 2004, 2005 Free Software Foundation, Inc.
# Written by Tom Tromey <tromey@cygnus.com>.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2, or (at your option)
# any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
# As a special exception to the GNU General Public License, if you
# distribute this file as part of a program that contains a
# configuration script generated by Autoconf, you may include it under
# the same distribution terms that you use for the rest of that program.
# This file is maintained in Automake, please report
# bugs to <bug-automake@gnu.org> or send patches to
# <automake-patches@gnu.org>.
case $1 in
'')
echo "$0: No command. Try \`$0 --help' for more information." 1>&2
exit 1;
;;
-h | --h*)
cat <<\EOF
Usage: compile [--help] [--version] PROGRAM [ARGS]
Wrapper for compilers which do not understand `-c -o'.
Remove `-o dest.o' from ARGS, run PROGRAM with the remaining
arguments, and rename the output as expected.
If you are trying to build a whole package this is not the
right script to run: please start by reading the file `INSTALL'.
Report bugs to <bug-automake@gnu.org>.
EOF
exit $?
;;
-v | --v*)
echo "compile $scriptversion"
exit $?
;;
esac
ofile=
cfile=
eat=
for arg
do
if test -n "$eat"; then
eat=
else
case $1 in
-o)
# configure might choose to run compile as `compile cc -o foo foo.c'.
# So we strip `-o arg' only if arg is an object.
eat=1
case $2 in
*.o | *.obj)
ofile=$2
;;
*)
set x "$@" -o "$2"
shift
;;
esac
;;
*.c)
cfile=$1
set x "$@" "$1"
shift
;;
*)
set x "$@" "$1"
shift
;;
esac
fi
shift
done
if test -z "$ofile" || test -z "$cfile"; then
# If no `-o' option was seen then we might have been invoked from a
# pattern rule where we don't need one. That is ok -- this is a
# normal compilation that the losing compiler can handle. If no
# `.c' file was seen then we are probably linking. That is also
# ok.
exec "$@"
fi
# Name of file we expect compiler to create.
cofile=`echo "$cfile" | sed -e 's|^.*/||' -e 's/\.c$/.o/'`
# Create the lock directory.
# Note: use `[/.-]' here to ensure that we don't use the same name
# that we are using for the .o file. Also, base the name on the expected
# object file name, since that is what matters with a parallel build.
lockdir=`echo "$cofile" | sed -e 's|[/.-]|_|g'`.d
while true; do
if mkdir "$lockdir" >/dev/null 2>&1; then
break
fi
sleep 1
done
# FIXME: race condition here if user kills between mkdir and trap.
trap "rmdir '$lockdir'; exit 1" 1 2 15
# Run the compile.
"$@"
ret=$?
if test -f "$cofile"; then
mv "$cofile" "$ofile"
elif test -f "${cofile}bj"; then
mv "${cofile}bj" "$ofile"
fi
rmdir "$lockdir"
exit $ret
# Local Variables:
# mode: shell-script
# sh-indentation: 2
# eval: (add-hook 'write-file-hooks 'time-stamp)
# time-stamp-start: "scriptversion="
# time-stamp-format: "%:y-%02m-%02d.%02H"
# time-stamp-end: "$"
# End:

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ExternalLibs/libogg-1.2.0/config.h.in
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/* config.h.in. Generated from configure.in by autoheader. */
/* Define to 1 if you have the <dlfcn.h> header file. */
#undef HAVE_DLFCN_H
/* Define to 1 if you have the <inttypes.h> header file. */
#undef HAVE_INTTYPES_H
/* Define to 1 if you have the <memory.h> header file. */
#undef HAVE_MEMORY_H
/* Define to 1 if you have the <stdint.h> header file. */
#undef HAVE_STDINT_H
/* Define to 1 if you have the <stdlib.h> header file. */
#undef HAVE_STDLIB_H
/* Define to 1 if you have the <strings.h> header file. */
#undef HAVE_STRINGS_H
/* Define to 1 if you have the <string.h> header file. */
#undef HAVE_STRING_H
/* Define to 1 if you have the <sys/stat.h> header file. */
#undef HAVE_SYS_STAT_H
/* Define to 1 if you have the <sys/types.h> header file. */
#undef HAVE_SYS_TYPES_H
/* Define to 1 if you have the <unistd.h> header file. */
#undef HAVE_UNISTD_H
/* Define to the sub-directory in which libtool stores uninstalled libraries.
*/
#undef LT_OBJDIR
/* Define to 1 if your C compiler doesn't accept -c and -o together. */
#undef NO_MINUS_C_MINUS_O
/* Name of package */
#undef PACKAGE
/* Define to the address where bug reports for this package should be sent. */
#undef PACKAGE_BUGREPORT
/* Define to the full name of this package. */
#undef PACKAGE_NAME
/* Define to the full name and version of this package. */
#undef PACKAGE_STRING
/* Define to the one symbol short name of this package. */
#undef PACKAGE_TARNAME
/* Define to the version of this package. */
#undef PACKAGE_VERSION
/* The size of `int', as computed by sizeof. */
#undef SIZEOF_INT
/* The size of `long', as computed by sizeof. */
#undef SIZEOF_LONG
/* The size of `long long', as computed by sizeof. */
#undef SIZEOF_LONG_LONG
/* The size of `short', as computed by sizeof. */
#undef SIZEOF_SHORT
/* Define to 1 if you have the ANSI C header files. */
#undef STDC_HEADERS
/* Version number of package */
#undef VERSION
/* Define to empty if `const' does not conform to ANSI C. */
#undef const

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310
ExternalLibs/libogg-1.2.0/configure.in
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@ -1,310 +0,0 @@
dnl Process this file with autoconf to produce a configure script.
AC_INIT(src/framing.c)
AM_INIT_AUTOMAKE(libogg,1.2.0)
AM_MAINTAINER_MODE
dnl Library versioning
LIB_CURRENT=7
LIB_REVISION=0
LIB_AGE=7
AC_SUBST(LIB_CURRENT)
AC_SUBST(LIB_REVISION)
AC_SUBST(LIB_AGE)
AC_PROG_CC
AM_PROG_LIBTOOL
AM_PROG_CC_C_O
dnl config.h
AM_CONFIG_HEADER(config.h)
dnl Set some options based on environment
cflags_save="$CFLAGS"
if test -z "$GCC"; then
case $host in
*-*-irix*)
DEBUG="-g -signed"
CFLAGS="-O2 -w -signed"
PROFILE="-p -g3 -O2 -signed"
;;
sparc-sun-solaris*)
DEBUG="-v -g"
CFLAGS="-xO4 -fast -w -fsimple -native -xcg92"
PROFILE="-v -xpg -g -xO4 -fast -native -fsimple -xcg92 -Dsuncc"
;;
*)
DEBUG="-g"
CFLAGS="-O"
PROFILE="-g -p"
;;
esac
else
case $host in
*-*-linux*)
DEBUG="-g -Wall -fsigned-char"
CFLAGS="-O20 -ffast-math -fsigned-char"
PROFILE="-Wall -W -pg -g -O20 -ffast-math -fsigned-char"
;;
sparc-sun-*)
sparc_cpu=""
AC_MSG_CHECKING([if gcc supports -mv8])
old_cflags="$CFLAGS"
CFLAGS="$CFLAGS -mv8"
AC_TRY_COMPILE(, [return 0;], [
AC_MSG_RESULT([yes])
sparc_cpu="-mv8"
])
CFLAGS="$old_cflags"
DEBUG="-g -Wall -fsigned-char $sparc_cpu"
CFLAGS="-O20 -ffast-math -fsigned-char $sparc_cpu"
PROFILE="-pg -g -O20 -fsigned-char $sparc_cpu"
;;
*-*-darwin*)
DEBUG="-fno-common -g -Wall -fsigned-char"
CFLAGS="-fno-common -O4 -Wall -fsigned-char -ffast-math"
PROFILE="-fno-common -O4 -Wall -pg -g -fsigned-char -ffast-math"
;;
*)
DEBUG="-g -Wall -fsigned-char"
CFLAGS="-O20 -fsigned-char"
PROFILE="-O20 -g -pg -fsigned-char"
;;
esac
fi
CFLAGS="$CFLAGS $cflags_save"
DEBUG="$DEBUG $cflags_save"
PROFILE="$PROFILE $cflags_save"
dnl Checks for programs.
dnl Checks for libraries.
dnl Checks for header files.
AC_HEADER_STDC
dnl Checks for typedefs, structures, and compiler characteristics.
AC_C_CONST
dnl Check for types
AC_MSG_CHECKING(for int16_t)
AC_CACHE_VAL(has_cv_int16_t,
[AC_TRY_RUN([
#if defined __BEOS__ && !defined __HAIKU__
#include <inttypes.h>
#endif
#include <sys/types.h>
int16_t foo;
int main() {return 0;}
],
has_cv_int16_t=yes,
has_cv_int16_t=no,
has_cv_int16_t=no
)])
AC_MSG_RESULT($has_cv_int16_t)
AC_MSG_CHECKING(for int32_t)
AC_CACHE_VAL(has_cv_int32_t,
[AC_TRY_RUN([
#if defined __BEOS__ && !defined __HAIKU__
#include <inttypes.h>
#endif
#include <sys/types.h>
int32_t foo;
int main() {return 0;}
],
has_cv_int32_t=yes,
has_cv_int32_t=no,
has_cv_int32_t=no
)])
AC_MSG_RESULT($has_cv_int32_t)
AC_MSG_CHECKING(for uint32_t)
AC_CACHE_VAL(has_cv_uint32_t,
[AC_TRY_RUN([
#if defined __BEOS__ && !defined __HAIKU__
#include <inttypes.h>
#endif
#include <sys/types.h>
uint32_t foo;
int main() {return 0;}
],
has_cv_uint32_t=yes,
has_cv_uint32_t=no,
has_cv_uint32_t=no
)])
AC_MSG_RESULT($has_cv_uint32_t)
AC_MSG_CHECKING(for uint16_t)
AC_CACHE_VAL(has_cv_uint16_t,
[AC_TRY_RUN([
#if defined __BEOS__ && !defined __HAIKU__
#include <inttypes.h>
#endif
#include <sys/types.h>
uint16_t foo;
int main() {return 0;}
],
has_cv_uint16_t=yes,
has_cv_uint16_t=no,
has_cv_uint16_t=no
)])
AC_MSG_RESULT($has_cv_uint16_t)
AC_MSG_CHECKING(for u_int32_t)
AC_CACHE_VAL(has_cv_u_int32_t,
[AC_TRY_RUN([
#if defined __BEOS__ && !defined __HAIKU__
#include <inttypes.h>
#endif
#include <sys/types.h>
u_int32_t foo;
int main() {return 0;}
],
has_cv_u_int32_t=yes,
has_cv_u_int32_t=no,
has_cv_u_int32_t=no
)])
AC_MSG_RESULT($has_cv_u_int32_t)
AC_MSG_CHECKING(for u_int16_t)
AC_CACHE_VAL(has_cv_u_int16_t,
[AC_TRY_RUN([
#if defined __BEOS__ && !defined __HAIKU__
#include <inttypes.h>
#endif
#include <sys/types.h>
u_int16_t foo;
int main() {return 0;}
],
has_cv_u_int16_t=yes,
has_cv_u_int16_t=no,
has_cv_u_int16_t=no
)])
AC_MSG_RESULT($has_cv_u_int16_t)
AC_MSG_CHECKING(for int64_t)
AC_CACHE_VAL(has_cv_int64_t,
[AC_TRY_RUN([
#if defined __BEOS__ && !defined __HAIKU__
#include <inttypes.h>
#endif
#include <sys/types.h>
int64_t foo;
int main() {return 0;}
],
has_cv_int64_t=yes,
has_cv_int64_t=no,
has_cv_int64_t=no
)])
AC_MSG_RESULT($has_cv_int64_t)
AC_CHECK_SIZEOF(short,2)
AC_CHECK_SIZEOF(int,4)
AC_CHECK_SIZEOF(long,4)
AC_CHECK_SIZEOF(long long,8)
if test x$has_cv_int16_t = "xyes" ; then
SIZE16="int16_t"
else
case 2 in
$ac_cv_sizeof_short) SIZE16="short";;
$ac_cv_sizeof_int) SIZE16="int";;
esac
fi
if test x$has_cv_int32_t = "xyes" ; then
SIZE32="int32_t"
else
case 4 in
$ac_cv_sizeof_short) SIZE32="short";;
$ac_cv_sizeof_int) SIZE32="int";;
$ac_cv_sizeof_long) SIZE32="long";;
esac
fi
if test x$has_cv_uint32_t = "xyes" ; then
USIZE32="uint32_t"
else
if test x$has_cv_u_int32_t = "xyes" ; then
USIZE32="u_int32_t"
else
case 4 in
$ac_cv_sizeof_short) USIZE32="unsigned short";;
$ac_cv_sizeof_int) USIZE32="unsigned int";;
$ac_cv_sizeof_long) USIZE32="unsigned long";;
esac
fi
fi
if test x$has_cv_uint16_t = "xyes" ; then
USIZE16="uint16_t"
else
if test x$has_cv_u_int16_t = "xyes" ; then
USIZE16="u_int16_t"
else
case 2 in
$ac_cv_sizeof_short) USIZE16="unsigned short";;
$ac_cv_sizeof_int) USIZE16="unsigned int";;
$ac_cv_sizeof_long) USIZE16="unsigned long";;
esac
fi
fi
if test x$has_cv_int64_t = "xyes" ; then
SIZE64="int64_t"
else
case 8 in
$ac_cv_sizeof_int) SIZE64="int";;
$ac_cv_sizeof_long) SIZE64="long";;
$ac_cv_sizeof_long_long) SIZE64="long long";;
esac
fi
if test -z "$SIZE16"; then
AC_MSG_ERROR(No 16 bit type found on this platform!)
fi
if test -z "$USIZE16"; then
AC_MSG_ERROR(No unsigned 16 bit type found on this platform!)
fi
if test -z "$SIZE32"; then
AC_MSG_ERROR(No 32 bit type found on this platform!)
fi
if test -z "$USIZE32"; then
AC_MSG_ERROR(No unsigned 32 bit type found on this platform!)
fi
if test -z "$SIZE64"; then
AC_MSG_WARN(No 64 bit type found on this platform!)
fi
dnl Checks for library functions.
AC_FUNC_MEMCMP
dnl Make substitutions
AC_SUBST(LIBTOOL_DEPS)
AC_SUBST(SIZE16)
AC_SUBST(USIZE16)
AC_SUBST(SIZE32)
AC_SUBST(USIZE32)
AC_SUBST(SIZE64)
AC_SUBST(OPT)
AC_SUBST(LIBS)
AC_SUBST(DEBUG)
AC_SUBST(CFLAGS)
AC_SUBST(PROFILE)
AC_OUTPUT([
Makefile
src/Makefile
doc/Makefile doc/libogg/Makefile
include/Makefile include/ogg/Makefile include/ogg/config_types.h
libogg.spec
ogg.pc
ogg-uninstalled.pc
])

530
ExternalLibs/libogg-1.2.0/depcomp
View file

@ -1,530 +0,0 @@
#! /bin/sh
# depcomp - compile a program generating dependencies as side-effects
scriptversion=2005-07-09.11
# Copyright (C) 1999, 2000, 2003, 2004, 2005 Free Software Foundation, Inc.
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2, or (at your option)
# any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
# 02110-1301, USA.
# As a special exception to the GNU General Public License, if you
# distribute this file as part of a program that contains a
# configuration script generated by Autoconf, you may include it under
# the same distribution terms that you use for the rest of that program.
# Originally written by Alexandre Oliva <oliva@dcc.unicamp.br>.
case $1 in
'')
echo "$0: No command. Try \`$0 --help' for more information." 1>&2
exit 1;
;;
-h | --h*)
cat <<\EOF
Usage: depcomp [--help] [--version] PROGRAM [ARGS]
Run PROGRAMS ARGS to compile a file, generating dependencies
as side-effects.
Environment variables:
depmode Dependency tracking mode.
source Source file read by `PROGRAMS ARGS'.
object Object file output by `PROGRAMS ARGS'.
DEPDIR directory where to store dependencies.
depfile Dependency file to output.
tmpdepfile Temporary file to use when outputing dependencies.
libtool Whether libtool is used (yes/no).
Report bugs to <bug-automake@gnu.org>.
EOF
exit $?
;;
-v | --v*)
echo "depcomp $scriptversion"
exit $?
;;
esac
if test -z "$depmode" || test -z "$source" || test -z "$object"; then
echo "depcomp: Variables source, object and depmode must be set" 1>&2
exit 1
fi
# Dependencies for sub/bar.o or sub/bar.obj go into sub/.deps/bar.Po.
depfile=${depfile-`echo "$object" |
sed 's|[^\\/]*$|'${DEPDIR-.deps}'/&|;s|\.\([^.]*\)$|.P\1|;s|Pobj$|Po|'`}
tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`}
rm -f "$tmpdepfile"
# Some modes work just like other modes, but use different flags. We
# parameterize here, but still list the modes in the big case below,
# to make depend.m4 easier to write. Note that we *cannot* use a case
# here, because this file can only contain one case statement.
if test "$depmode" = hp; then
# HP compiler uses -M and no extra arg.
gccflag=-M
depmode=gcc
fi
if test "$depmode" = dashXmstdout; then
# This is just like dashmstdout with a different argument.
dashmflag=-xM
depmode=dashmstdout
fi
case "$depmode" in
gcc3)
## gcc 3 implements dependency tracking that does exactly what
## we want. Yay! Note: for some reason libtool 1.4 doesn't like
## it if -MD -MP comes after the -MF stuff. Hmm.
"$@" -MT "$object" -MD -MP -MF "$tmpdepfile"
stat=$?
if test $stat -eq 0; then :
else
rm -f "$tmpdepfile"
exit $stat
fi
mv "$tmpdepfile" "$depfile"
;;
gcc)
## There are various ways to get dependency output from gcc. Here's
## why we pick this rather obscure method:
## - Don't want to use -MD because we'd like the dependencies to end
## up in a subdir. Having to rename by hand is ugly.
## (We might end up doing this anyway to support other compilers.)
## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like
## -MM, not -M (despite what the docs say).
## - Using -M directly means running the compiler twice (even worse
## than renaming).
if test -z "$gccflag"; then
gccflag=-MD,
fi
"$@" -Wp,"$gccflag$tmpdepfile"
stat=$?
if test $stat -eq 0; then :
else
rm -f "$tmpdepfile"
exit $stat
fi
rm -f "$depfile"
echo "$object : \\" > "$depfile"
alpha=ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz
## The second -e expression handles DOS-style file names with drive letters.
sed -e 's/^[^:]*: / /' \
-e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile"
## This next piece of magic avoids the `deleted header file' problem.
## The problem is that when a header file which appears in a .P file
## is deleted, the dependency causes make to die (because there is
## typically no way to rebuild the header). We avoid this by adding
## dummy dependencies for each header file. Too bad gcc doesn't do
## this for us directly.
tr ' ' '
' < "$tmpdepfile" |
## Some versions of gcc put a space before the `:'. On the theory
## that the space means something, we add a space to the output as
## well.
## Some versions of the HPUX 10.20 sed can't process this invocation
## correctly. Breaking it into two sed invocations is a workaround.
sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
rm -f "$tmpdepfile"
;;
hp)
# This case exists only to let depend.m4 do its work. It works by
# looking at the text of this script. This case will never be run,
# since it is checked for above.
exit 1
;;
sgi)
if test "$libtool" = yes; then
"$@" "-Wp,-MDupdate,$tmpdepfile"
else
"$@" -MDupdate "$tmpdepfile"
fi
stat=$?
if test $stat -eq 0; then :
else
rm -f "$tmpdepfile"
exit $stat
fi
rm -f "$depfile"
if test -f "$tmpdepfile"; then # yes, the sourcefile depend on other files
echo "$object : \\" > "$depfile"
# Clip off the initial element (the dependent). Don't try to be
# clever and replace this with sed code, as IRIX sed won't handle
# lines with more than a fixed number of characters (4096 in
# IRIX 6.2 sed, 8192 in IRIX 6.5). We also remove comment lines;
# the IRIX cc adds comments like `#:fec' to the end of the
# dependency line.
tr ' ' '
' < "$tmpdepfile" \
| sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' | \
tr '
' ' ' >> $depfile
echo >> $depfile
# The second pass generates a dummy entry for each header file.
tr ' ' '
' < "$tmpdepfile" \
| sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' -e 's/$/:/' \
>> $depfile
else
# The sourcefile does not contain any dependencies, so just
# store a dummy comment line, to avoid errors with the Makefile
# "include basename.Plo" scheme.
echo "#dummy" > "$depfile"
fi
rm -f "$tmpdepfile"
;;
aix)
# The C for AIX Compiler uses -M and outputs the dependencies
# in a .u file. In older versions, this file always lives in the
# current directory. Also, the AIX compiler puts `$object:' at the
# start of each line; $object doesn't have directory information.
# Version 6 uses the directory in both cases.
stripped=`echo "$object" | sed 's/\(.*\)\..*$/\1/'`
tmpdepfile="$stripped.u"
if test "$libtool" = yes; then
"$@" -Wc,-M
else
"$@" -M
fi
stat=$?
if test -f "$tmpdepfile"; then :
else
stripped=`echo "$stripped" | sed 's,^.*/,,'`
tmpdepfile="$stripped.u"
fi
if test $stat -eq 0; then :
else
rm -f "$tmpdepfile"
exit $stat
fi
if test -f "$tmpdepfile"; then
outname="$stripped.o"
# Each line is of the form `foo.o: dependent.h'.
# Do two passes, one to just change these to
# `$object: dependent.h' and one to simply `dependent.h:'.
sed -e "s,^$outname:,$object :," < "$tmpdepfile" > "$depfile"
sed -e "s,^$outname: \(.*\)$,\1:," < "$tmpdepfile" >> "$depfile"
else
# The sourcefile does not contain any dependencies, so just
# store a dummy comment line, to avoid errors with the Makefile
# "include basename.Plo" scheme.
echo "#dummy" > "$depfile"
fi
rm -f "$tmpdepfile"
;;
icc)
# Intel's C compiler understands `-MD -MF file'. However on
# icc -MD -MF foo.d -c -o sub/foo.o sub/foo.c
# ICC 7.0 will fill foo.d with something like
# foo.o: sub/foo.c
# foo.o: sub/foo.h
# which is wrong. We want:
# sub/foo.o: sub/foo.c
# sub/foo.o: sub/foo.h
# sub/foo.c:
# sub/foo.h:
# ICC 7.1 will output
# foo.o: sub/foo.c sub/foo.h
# and will wrap long lines using \ :
# foo.o: sub/foo.c ... \
# sub/foo.h ... \
# ...
"$@" -MD -MF "$tmpdepfile"
stat=$?
if test $stat -eq 0; then :
else
rm -f "$tmpdepfile"
exit $stat
fi
rm -f "$depfile"
# Each line is of the form `foo.o: dependent.h',
# or `foo.o: dep1.h dep2.h \', or ` dep3.h dep4.h \'.
# Do two passes, one to just change these to
# `$object: dependent.h' and one to simply `dependent.h:'.
sed "s,^[^:]*:,$object :," < "$tmpdepfile" > "$depfile"
# Some versions of the HPUX 10.20 sed can't process this invocation
# correctly. Breaking it into two sed invocations is a workaround.
sed 's,^[^:]*: \(.*\)$,\1,;s/^\\$//;/^$/d;/:$/d' < "$tmpdepfile" |
sed -e 's/$/ :/' >> "$depfile"
rm -f "$tmpdepfile"
;;
tru64)
# The Tru64 compiler uses -MD to generate dependencies as a side
# effect. `cc -MD -o foo.o ...' puts the dependencies into `foo.o.d'.
# At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put
# dependencies in `foo.d' instead, so we check for that too.
# Subdirectories are respected.
dir=`echo "$object" | sed -e 's|/[^/]*$|/|'`
test "x$dir" = "x$object" && dir=
base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'`
if test "$libtool" = yes; then
# With Tru64 cc, shared objects can also be used to make a
# static library. This mecanism is used in libtool 1.4 series to
# handle both shared and static libraries in a single compilation.
# With libtool 1.4, dependencies were output in $dir.libs/$base.lo.d.
#
# With libtool 1.5 this exception was removed, and libtool now
# generates 2 separate objects for the 2 libraries. These two
# compilations output dependencies in in $dir.libs/$base.o.d and
# in $dir$base.o.d. We have to check for both files, because
# one of the two compilations can be disabled. We should prefer
# $dir$base.o.d over $dir.libs/$base.o.d because the latter is
# automatically cleaned when .libs/ is deleted, while ignoring
# the former would cause a distcleancheck panic.
tmpdepfile1=$dir.libs/$base.lo.d # libtool 1.4
tmpdepfile2=$dir$base.o.d # libtool 1.5
tmpdepfile3=$dir.libs/$base.o.d # libtool 1.5
tmpdepfile4=$dir.libs/$base.d # Compaq CCC V6.2-504
"$@" -Wc,-MD
else
tmpdepfile1=$dir$base.o.d
tmpdepfile2=$dir$base.d
tmpdepfile3=$dir$base.d
tmpdepfile4=$dir$base.d
"$@" -MD
fi
stat=$?
if test $stat -eq 0; then :
else
rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" "$tmpdepfile4"
exit $stat
fi
for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" "$tmpdepfile4"
do
test -f "$tmpdepfile" && break
done
if test -f "$tmpdepfile"; then
sed -e "s,^.*\.[a-z]*:,$object:," < "$tmpdepfile" > "$depfile"
# That's a tab and a space in the [].
sed -e 's,^.*\.[a-z]*:[ ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile"
else
echo "#dummy" > "$depfile"
fi
rm -f "$tmpdepfile"
;;
#nosideeffect)
# This comment above is used by automake to tell side-effect
# dependency tracking mechanisms from slower ones.
dashmstdout)
# Important note: in order to support this mode, a compiler *must*
# always write the preprocessed file to stdout, regardless of -o.
"$@" || exit $?
# Remove the call to Libtool.
if test "$libtool" = yes; then
while test $1 != '--mode=compile'; do
shift
done
shift
fi
# Remove `-o $object'.
IFS=" "
for arg
do
case $arg in
-o)
shift
;;
$object)
shift
;;
*)
set fnord "$@" "$arg"
shift # fnord
shift # $arg
;;
esac
done
test -z "$dashmflag" && dashmflag=-M
# Require at least two characters before searching for `:'
# in the target name. This is to cope with DOS-style filenames:
# a dependency such as `c:/foo/bar' could be seen as target `c' otherwise.
"$@" $dashmflag |
sed 's:^[ ]*[^: ][^:][^:]*\:[ ]*:'"$object"'\: :' > "$tmpdepfile"
rm -f "$depfile"
cat < "$tmpdepfile" > "$depfile"
tr ' ' '
' < "$tmpdepfile" | \
## Some versions of the HPUX 10.20 sed can't process this invocation
## correctly. Breaking it into two sed invocations is a workaround.
sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
rm -f "$tmpdepfile"
;;
dashXmstdout)
# This case only exists to satisfy depend.m4. It is never actually
# run, as this mode is specially recognized in the preamble.
exit 1
;;
makedepend)
"$@" || exit $?
# Remove any Libtool call
if test "$libtool" = yes; then
while test $1 != '--mode=compile'; do
shift
done
shift
fi
# X makedepend
shift
cleared=no
for arg in "$@"; do
case $cleared in
no)
set ""; shift
cleared=yes ;;
esac
case "$arg" in
-D*|-I*)
set fnord "$@" "$arg"; shift ;;
# Strip any option that makedepend may not understand. Remove
# the object too, otherwise makedepend will parse it as a source file.
-*|$object)
;;
*)
set fnord "$@" "$arg"; shift ;;
esac
done
obj_suffix="`echo $object | sed 's/^.*\././'`"
touch "$tmpdepfile"
${MAKEDEPEND-makedepend} -o"$obj_suffix" -f"$tmpdepfile" "$@"
rm -f "$depfile"
cat < "$tmpdepfile" > "$depfile"
sed '1,2d' "$tmpdepfile" | tr ' ' '
' | \
## Some versions of the HPUX 10.20 sed can't process this invocation
## correctly. Breaking it into two sed invocations is a workaround.
sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
rm -f "$tmpdepfile" "$tmpdepfile".bak
;;
cpp)
# Important note: in order to support this mode, a compiler *must*
# always write the preprocessed file to stdout.
"$@" || exit $?
# Remove the call to Libtool.
if test "$libtool" = yes; then
while test $1 != '--mode=compile'; do
shift
done
shift
fi
# Remove `-o $object'.
IFS=" "
for arg
do
case $arg in
-o)
shift
;;
$object)
shift
;;
*)
set fnord "$@" "$arg"
shift # fnord
shift # $arg
;;
esac
done
"$@" -E |
sed -n -e '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \
-e '/^#line [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' |
sed '$ s: \\$::' > "$tmpdepfile"
rm -f "$depfile"
echo "$object : \\" > "$depfile"
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<h1>Ogg logical bitstream framing</h1>
<h2>Ogg bitstreams</h2>
<p>The Ogg transport bitstream is designed to provide framing, error
protection and seeking structure for higher-level codec streams that
consist of raw, unencapsulated data packets, such as the Vorbis audio
codec or Theora video codec.</p>
<h2>Application example: Vorbis</h2>
<p>Vorbis encodes short-time blocks of PCM data into raw packets of
bit-packed data. These raw packets may be used directly by transport
mechanisms that provide their own framing and packet-separation
mechanisms (such as UDP datagrams). For stream based storage (such as
files) and transport (such as TCP streams or pipes), Vorbis uses the
Ogg bitstream format to provide framing/sync, sync recapture
after error, landmarks during seeking, and enough information to
properly separate data back into packets at the original packet
boundaries without relying on decoding to find packet boundaries.</p>
<h2>Design constraints for Ogg bitstreams</h2>
<ol>
<li>True streaming; we must not need to seek to build a 100%
complete bitstream.</li>
<li>Use no more than approximately 1-2% of bitstream bandwidth for
packet boundary marking, high-level framing, sync and seeking.</li>
<li>Specification of absolute position within the original sample
stream.</li>
<li>Simple mechanism to ease limited editing, such as a simplified
concatenation mechanism.</li>
<li>Detection of corruption, recapture after error and direct, random
access to data at arbitrary positions in the bitstream.</li>
</ol>
<h2>Logical and Physical Bitstreams</h2>
<p>A <em>logical</em> Ogg bitstream is a contiguous stream of
sequential pages belonging only to the logical bitstream. A
<em>physical</em> Ogg bitstream is constructed from one or more
than one logical Ogg bitstream (the simplest physical bitstream
is simply a single logical bitstream). We describe below the exact
formatting of an Ogg logical bitstream. Combining logical
bitstreams into more complex physical bitstreams is described in the
<a href="oggstream.html">Ogg bitstream overview</a>. The exact
mapping of raw Vorbis packets into a valid Ogg Vorbis physical
bitstream is described in the Vorbis I Specification.</p>
<h2>Bitstream structure</h2>
<p>An Ogg stream is structured by dividing incoming packets into
segments of up to 255 bytes and then wrapping a group of contiguous
packet segments into a variable length page preceded by a page
header. Both the header size and page size are variable; the page
header contains sizing information and checksum data to determine
header/page size and data integrity.</p>
<p>The bitstream is captured (or recaptured) by looking for the beginning
of a page, specifically the capture pattern. Once the capture pattern
is found, the decoder verifies page sync and integrity by computing
and comparing the checksum. At that point, the decoder can extract the
packets themselves.</p>
<h3>Packet segmentation</h3>
<p>Packets are logically divided into multiple segments before encoding
into a page. Note that the segmentation and fragmentation process is a
logical one; it's used to compute page header values and the original
page data need not be disturbed, even when a packet spans page
boundaries.</p>
<p>The raw packet is logically divided into [n] 255 byte segments and a
last fractional segment of &lt; 255 bytes. A packet size may well
consist only of the trailing fractional segment, and a fractional
segment may be zero length. These values, called "lacing values" are
then saved and placed into the header segment table.</p>
<p>An example should make the basic concept clear:</p>
<pre>
<tt>
raw packet:
___________________________________________
|______________packet data__________________| 753 bytes
lacing values for page header segment table: 255,255,243
</tt>
</pre>
<p>We simply add the lacing values for the total size; the last lacing
value for a packet is always the value that is less than 255. Note
that this encoding both avoids imposing a maximum packet size as well
as imposing minimum overhead on small packets (as opposed to, eg,
simply using two bytes at the head of every packet and having a max
packet size of 32k. Small packets (&lt;255, the typical case) are
penalized with twice the segmentation overhead). Using the lacing
values as suggested, small packets see the minimum possible
byte-aligned overhead (1 byte) and large packets, over 512 bytes or
so, see a fairly constant ~.5% overhead on encoding space.</p>
<p>Note that a lacing value of 255 implies that a second lacing value
follows in the packet, and a value of &lt; 255 marks the end of the
packet after that many additional bytes. A packet of 255 bytes (or a
multiple of 255 bytes) is terminated by a lacing value of 0:</p>
<pre><tt>
raw packet:
_______________________________
|________packet data____________| 255 bytes
lacing values: 255, 0
</tt></pre>
<p>Note also that a 'nil' (zero length) packet is not an error; it
consists of nothing more than a lacing value of zero in the header.</p>
<h3>Packets spanning pages</h3>
<p>Packets are not restricted to beginning and ending within a page,
although individual segments are, by definition, required to do so.
Packets are not restricted to a maximum size, although excessively
large packets in the data stream are discouraged; the Ogg
bitstream specification strongly recommends nominal page size of
approximately 4-8kB (large packets are foreseen as being useful for
initialization data at the beginning of a logical bitstream).</p>
<p>After segmenting a packet, the encoder may decide not to place all the
resulting segments into the current page; to do so, the encoder places
the lacing values of the segments it wishes to belong to the current
page into the current segment table, then finishes the page. The next
page is begun with the first value in the segment table belonging to
the next packet segment, thus continuing the packet (data in the
packet body must also correspond properly to the lacing values in the
spanned pages. The segment data in the first packet corresponding to
the lacing values of the first page belong in that page; packet
segments listed in the segment table of the following page must begin
the page body of the subsequent page).</p>
<p>The last mechanic to spanning a page boundary is to set the header
flag in the new page to indicate that the first lacing value in the
segment table continues rather than begins a packet; a header flag of
0x01 is set to indicate a continued packet. Although mandatory, it
is not actually algorithmically necessary; one could inspect the
preceding segment table to determine if the packet is new or
continued. Adding the information to the packet_header flag allows a
simpler design (with no overhead) that needs only inspect the current
page header after frame capture. This also allows faster error
recovery in the event that the packet originates in a corrupt
preceding page, implying that the previous page's segment table
cannot be trusted.</p>
<p>Note that a packet can span an arbitrary number of pages; the above
spanning process is repeated for each spanned page boundary. Also a
'zero termination' on a packet size that is an even multiple of 255
must appear even if the lacing value appears in the next page as a
zero-length continuation of the current packet. The header flag
should be set to 0x01 to indicate that the packet spanned, even though
the span is a nil case as far as data is concerned.</p>
<p>The encoding looks odd, but is properly optimized for speed and the
expected case of the majority of packets being between 50 and 200
bytes (note that it is designed such that packets of wildly different
sizes can be handled within the model; placing packet size
restrictions on the encoder would have only slightly simplified design
in page generation and increased overall encoder complexity).</p>
<p>The main point behind tracking individual packets (and packet
segments) is to allow more flexible encoding tricks that requiring
explicit knowledge of packet size. An example is simple bandwidth
limiting, implemented by simply truncating packets in the nominal case
if the packet is arranged so that the least sensitive portion of the
data comes last.</p>
<h3>Page header</h3>
<p>The headering mechanism is designed to avoid copying and re-assembly
of the packet data (ie, making the packet segmentation process a
logical one); the header can be generated directly from incoming
packet data. The encoder buffers packet data until it finishes a
complete page at which point it writes the header followed by the
buffered packet segments.</p>
<h4>capture_pattern</h4>
<p>A header begins with a capture pattern that simplifies identifying
pages; once the decoder has found the capture pattern it can do a more
intensive job of verifying that it has in fact found a page boundary
(as opposed to an inadvertent coincidence in the byte stream).</p>
<pre><tt>
byte value
0 0x4f 'O'
1 0x67 'g'
2 0x67 'g'
3 0x53 'S'
</tt></pre>
<h4>stream_structure_version</h4>
<p>The capture pattern is followed by the stream structure revision:</p>
<pre><tt>
byte value
4 0x00
</tt></pre>
<h4>header_type_flag</h4>
<p>The header type flag identifies this page's context in the bitstream:</p>
<pre><tt>
byte value
5 bitflags: 0x01: unset = fresh packet
set = continued packet
0x02: unset = not first page of logical bitstream
set = first page of logical bitstream (bos)
0x04: unset = not last page of logical bitstream
set = last page of logical bitstream (eos)
</tt></pre>
<h4>absolute granule position</h4>
<p>(This is packed in the same way the rest of Ogg data is packed; LSb
of LSB first. Note that the 'position' data specifies a 'sample'
number (eg, in a CD quality sample is four octets, 16 bits for left
and 16 bits for right; in video it would likely be the frame number.
It is up to the specific codec in use to define the semantic meaning
of the granule position value). The position specified is the total
samples encoded after including all packets finished on this page
(packets begun on this page but continuing on to the next page do not
count). The rationale here is that the position specified in the
frame header of the last page tells how long the data coded by the
bitstream is. A truncated stream will still return the proper number
of samples that can be decoded fully.</p>
<p>A special value of '-1' (in two's complement) indicates that no packets
finish on this page.</p>
<pre><tt>
byte value
6 0xXX LSB
7 0xXX
8 0xXX
9 0xXX
10 0xXX
11 0xXX
12 0xXX
13 0xXX MSB
</tt></pre>
<h4>stream serial number</h4>
<p>Ogg allows for separate logical bitstreams to be mixed at page
granularity in a physical bitstream. The most common case would be
sequential arrangement, but it is possible to interleave pages for
two separate bitstreams to be decoded concurrently. The serial
number is the means by which pages physical pages are associated with
a particular logical stream. Each logical stream must have a unique
serial number within a physical stream:</p>
<pre><tt>
byte value
14 0xXX LSB
15 0xXX
16 0xXX
17 0xXX MSB
</tt></pre>
<h4>page sequence no</h4>
<p>Page counter; lets us know if a page is lost (useful where packets
span page boundaries).</p>
<pre><tt>
byte value
18 0xXX LSB
19 0xXX
20 0xXX
21 0xXX MSB
</tt></pre>
<h4>page checksum</h4>
<p>32 bit CRC value (direct algorithm, initial val and final XOR = 0,
generator polynomial=0x04c11db7). The value is computed over the
entire header (with the CRC field in the header set to zero) and then
continued over the page. The CRC field is then filled with the
computed value.</p>
<p>(A thorough discussion of CRC algorithms can be found in <a
href="http://www.ross.net/crc/download/crc_v3.txt">"A
Painless Guide to CRC Error Detection Algorithms"</a> by Ross
Williams <a href="mailto:ross@ross.net">ross@ross.net</a>.)</p>
<pre><tt>
byte value
22 0xXX LSB
23 0xXX
24 0xXX
25 0xXX MSB
</tt></pre>
<h4>page_segments</h4>
<p>The number of segment entries to appear in the segment table. The
maximum number of 255 segments (255 bytes each) sets the maximum
possible physical page size at 65307 bytes or just under 64kB (thus
we know that a header corrupted so as destroy sizing/alignment
information will not cause a runaway bitstream. We'll read in the
page according to the corrupted size information that's guaranteed to
be a reasonable size regardless, notice the checksum mismatch, drop
sync and then look for recapture).</p>
<pre><tt>
byte value
26 0x00-0xff (0-255)
</tt></pre>
<h4>segment_table (containing packet lacing values)</h4>
<p>The lacing values for each packet segment physically appearing in
this page are listed in contiguous order.</p>
<pre><tt>
byte value
27 0x00-0xff (0-255)
[...]
n 0x00-0xff (0-255, n=page_segments+26)
</tt></pre>
<p>Total page size is calculated directly from the known header size and
lacing values in the segment table. Packet data segments follow
immediately after the header.</p>
<p>Page headers typically impose a flat .25-.5% space overhead assuming
nominal ~8k page sizes. The segmentation table needed for exact
packet recovery in the streaming layer adds approximately .5-1%
nominal assuming expected encoder behavior in the 44.1kHz, 128kbps
stereo encodings.</p>
<div id="copyright">
The Xiph Fish Logo is a
trademark (&trade;) of Xiph.Org.<br/>
These pages &copy; 1994 - 2005 Xiph.Org. All rights reserved.
</div>
</body>
</html>

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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-15"/>
<title>Ogg Documentation</title>
<style type="text/css">
body {
margin: 0 18px 0 18px;
padding-bottom: 30px;
font-family: Verdana, Arial, Helvetica, sans-serif;
color: #333333;
font-size: .8em;
}
a {
color: #3366cc;
}
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border: 0;
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margin: 30px 0 16px 0;
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line-height: 1.4;
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font-weight: bold;
color: #ff9900;
margin: 1.3em 0 8px 0;
}
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font-size: 1.3em;
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font-size: 1.2em;
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#copyright {
margin-top: 30px;
line-height: 1.5em;
text-align: center;
font-size: .8em;
color: #888888;
clear: both;
}
</style>
</head>
<body>
<div id="xiphlogo">
<a href="http://www.xiph.org/"><img src="fish_xiph_org.png" alt="Fish Logo and Xiph.org"/></a>
</div>
<h1>Ogg Documentation</h1>
<h2>Ogg programming documentation</h2>
<ul>
<li><a href="libogg/index.html">Programming with ogg</a></li>
</ul>
<h2>Ogg bitsream documentation</h2>
<ul>
<li><a href="oggstream.html">Ogg bitstream overview</a></li>
<li><a href="framing.html">Ogg bitstream framing</a></li>
<li><a href="ogg-multiplex.html">Ogg multi-stream multiplexing</a></li>
<li><a href="skeleton.html">The Ogg Skeleton Metadata Bitstream</a></li>
</ul>
<h2>RFC documentation</h2>
<ul>
<li><a href="rfc3533.txt">rfc3533: The Ogg Encapsulation Format Version 0</a></li>
<li><a href="rfc5334.txt">rfc5334: Ogg Media Types</a></li>
</ul>
<div id="copyright">
The Xiph Fish Logo is a
trademark (&trade;) of Xiph.Org.<br/>
These pages &copy; 1994 - 2010 Xiph.Org. All rights reserved.
</div>
</body>
</html>

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<html>
<head>
<title>libogg - Bitpacking Functions</title>
<link rel=stylesheet href="style.css" type="text/css">
</head>
<body bgcolor=white text=black link="#5555ff" alink="#5555ff" vlink="#5555ff">
<table border=0 width=100%>
<tr>
<td><p class=tiny>libogg documentation</p></td>
<td align=right><p class=tiny>libogg release 1.2.0 - 20100325</p></td>
</tr>
</table>
<h1>Bitpacking Functions</h1>
<p>Libogg contains a basic bitpacking library that is useful for manipulating data within a buffer.
<p>
All the <b>libogg</b> specific functions are declared in "ogg/ogg.h".
<p>
<table border=1 color=black width=50% cellspacing=0 cellpadding=7>
<tr bgcolor=#cccccc>
<td><b>function</b></td>
<td><b>purpose</b></td>
</tr>
<tr valign=top>
<td><a href="oggpack_writeinit.html">oggpack_writeinit</a></td>
<td>Initializes a buffer for writing using this bitpacking library.</td>
</tr>
<tr valign=top>
<td><a href="oggpack_writecheck.html">oggpack_writecheck</a></td>
<td>Asynchronously checks error status of bitpacker write buffer.</td>
</tr>
<tr valign=top>
<td><a href="oggpack_reset.html">oggpack_reset</a></td>
<td>Clears and resets the buffer to the initial position.</td>
</tr>
<tr valign=top>
<td><a href="oggpack_writeclear.html">oggpack_writeclear</a></td>
<td>Frees the memory used by the buffer.</td>
</tr>
<tr valign=top>
<td><a href="oggpack_readinit.html">oggpack_readinit</a></td>
<td>Initializes a buffer for reading using this bitpacking library.</td>
</tr>
<tr valign=top>
<td><a href="oggpack_write.html">oggpack_write</a></td>
<td>Writes bytes to the specified location within the buffer.</td>
</tr>
<tr valign=top>
<td><a href="oggpack_look.html">oggpack_look</a></td>
<td>Look at a specified number of bits, <=32, without advancing the location pointer.</td>
</tr>
<tr valign=top>
<td><a href="oggpack_look1.html">oggpack_look1</a></td>
<td>Looks at one bit without advancing the location pointer.</td>
</tr>
<tr valign=top>
<td><a href="oggpack_adv.html">oggpack_adv</a></td>
<td>Advances the location pointer by a specified number of bits.</td>
</tr>
<tr valign=top>
<td><a href="oggpack_adv1.html">oggpack_adv1</a></td>
<td>Advances the location pointer by one bit.</td>
</tr>
<tr valign=top>
<td><a href="oggpack_read.html">oggpack_read</a></td>
<td>Reads a specified number of bits from the buffer.</td>
</tr>
<tr valign=top>
<td><a href="oggpack_read1.html">oggpack_read1</a></td>
<td>Reads one bit from the buffer.</td>
</tr>
<tr valign=top>
<td><a href="oggpack_bytes.html">oggpack_bytes</a></td>
<td>Returns the total number of bytes contained within the buffer.</td>
</tr>
<tr valign=top>
<td><a href="oggpack_bits.html">oggpack_bits</a></td>
<td>Returns the total number of bits contained within the buffer.</td>
</tr>
<tr valign=top>
<td><a href="oggpack_get_buffer.html">oggpack_get_buffer</a></td>
<td>Returns a pointer to the buffer encapsulated within the <a href="oggpack_buffer.html">oggpack_buffer</a> struct.</td>
</tr>
</table>
<br><br>
<hr noshade>
<table border=0 width=100%>
<tr valign=top>
<td><p class=tiny>copyright &copy; 2000-2010 Xiph.Org</p></td>
<td align=right><p class=tiny><a href="http://www.xiph.org/ogg/">Ogg Container Format</a></p></td>
</tr><tr>
<td><p class=tiny>libogg documentation</p></td>
<td align=right><p class=tiny>libogg release 1.2.0 - 20100325</p></td>
</tr>
</table>
</body>
</html>

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<html>
<head>
<title>libogg - Base Data Structures</title>
<link rel=stylesheet href="style.css" type="text/css">
</head>
<body bgcolor=white text=black link="#5555ff" alink="#5555ff" vlink="#5555ff">
<table border=0 width=100%>
<tr>
<td><p class=tiny>libogg documentation</p></td>
<td align=right><p class=tiny>libogg release 1.2.0 - 20100325</p></td>
</tr>
</table>
<h1>Base Data Structures</h1>
<p>Libogg uses several data structures to hold data and state information.
<p>
All the <b>libogg</b> specific data structures are declared in "ogg/ogg.h".
<p>
<table border=1 color=black width=50% cellspacing=0 cellpadding=7>
<tr bgcolor=#cccccc>
<td><b>datatype</b></td>
<td><b>purpose</b></td>
</tr>
<tr valign=top>
<td><a href="ogg_page.html">ogg_page</a></td>
<td>This structure encapsulates data into one ogg bitstream page.</td>
</tr>
<tr valign=top>
<td><a href="ogg_stream_state.html">ogg_stream_state</a></td>
<td>This structure contains current encode/decode data for a logical bitstream.</td>
</tr>
<tr valign=top>
<td><a href="ogg_packet.html">ogg_packet</a></td>
<td>This structure encapsulates the data and metadata for a single Ogg packet.</td>
</tr>
<tr valign=top>
<td><a href="ogg_sync_state.html">ogg_sync_state</a></td>
<td>Contains bitstream synchronization information.</td>
</tr>
</table>
<br><br>
<hr noshade>
<table border=0 width=100%>
<tr valign=top>
<td><p class=tiny>copyright &copy; 2000-2010 Xiph.Org</p></td>
<td align=right><p class=tiny><a href="http://www.xiph.org/ogg/">Ogg Container Format</a></p></td>
</tr><tr>
<td><p class=tiny>libogg documentation</p></td>
<td align=right><p class=tiny>libogg release 1.2.0 - 20100325</p></td>
</tr>
</table>
</body>
</html>

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ExternalLibs/libogg-1.2.0/doc/libogg/decoding.html
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<html>
<head>
<title>libogg - Decoding</title>
<link rel=stylesheet href="style.css" type="text/css">
</head>
<body bgcolor=white text=black link="#5555ff" alink="#5555ff" vlink="#5555ff">
<table border=0 width=100%>
<tr>
<td><p class=tiny>libogg documentation</p></td>
<td align=right><p class=tiny>libogg release 1.2.0 - 20100325</p></td>
</tr>
</table>
<h1>Decoding</h1>
<p>Libogg contains a set of functions used in the decoding process.
<p>
All the <b>libogg</b> specific functions are declared in "ogg/ogg.h".
<p>
<p>Decoding is based around the ogg synchronization layer. The <a href="ogg_sync_state.html">ogg_sync_state</a> struct coordinates between incoming data and the decoder. We read data into the synchronization layer, submit the data to the stream, and output raw packets to the decoder.
<p>Decoding through the Ogg layer follows a specific logical sequence. A read loop follows these logical steps:
<ul>
<li>Expose a buffer using <a href="ogg_sync_buffer.html">ogg_sync_buffer()</a>.
<li>Read data into the buffer, using fread() or a similar function.
<li>Call <a href="ogg_sync_wrote.html">ogg_sync_wrote()</a> to tell the synchronization layer how many bytes you wrote into the buffer.
<li>Write out the data using <a href="ogg_sync_pageout.html">ogg_sync_pageout</a>.
<li>Submit the completed page to the streaming layer with <a href="ogg_stream_pagein.html">ogg_stream_pagein</a>.
<li>Output a packet of data to the codec-specific decoding layer using <a href="ogg_stream_packetout.html">ogg_stream_packetout</a>.
</ul>
<p>In practice, streams are more complex, and Ogg also must handle headers, incomplete or dropped pages, and other errors in input.
<br><br>
<table border=1 color=black width=50% cellspacing=0 cellpadding=7>
<tr bgcolor=#cccccc>
<td><b>function</b></td>
<td><b>purpose</b></td>
</tr>
<tr valign=top>
<td><a href="ogg_sync_init.html">ogg_sync_init</a></td>
<td>Initializes an Ogg bitstream.</td>
</tr>
<tr valign=top>
<td><a href="ogg_sync_clear.html">ogg_sync_clear</a></td>
<td>Clears the status information from the synchronization struct.<td>
</tr>
<tr valign=top>
<td><a href="ogg_sync_reset.html">ogg_sync_reset</a></td>
<td>Resets the synchronization status to initial values.</td>
</tr>
<tr valign=top>
<td><a href="ogg_sync_destroy.html">ogg_sync_destroy</a></td>
<td>Frees the synchronization struct.</td>
</tr>
<tr valign=top>
<td><a href="ogg_sync_check.html">ogg_sync_check</a></td>
<td>Check for asynchronous errors.</td>
</tr>
<tr valign=top>
<td><a href="ogg_sync_buffer.html">ogg_sync_buffer</a></td>
<td>Exposes a buffer from the synchronization layer in order to read data.</td>
</tr>
<tr valign=top>
<td><a href="ogg_sync_wrote.html">ogg_sync_wrote</a></td>
<td>Tells the synchronization layer how many bytes were written into the buffer.</td>
</tr>
<tr valign=top>
<td><a href="ogg_sync_pageseek.html">ogg_sync_pageseek</a></td>
<td>Finds the borders of pages and resynchronizes the stream.</td>
</tr>
<tr valign=top>
<td><a href="ogg_sync_pageout.html">ogg_sync_pageout</a></td>
<td>Outputs a page from the synchronization layer.</td>
</tr>
<tr valign=top>
<td><a href="ogg_stream_pagein.html">ogg_stream_pagein</a></td>
<td>Submits a complete page to the stream layer.</td>
</tr>
<tr valign=top>
<td><a href="ogg_stream_packetout.html">ogg_stream_packetout</a></td>
<td>Outputs a packet to the codec-specific decoding engine.</td>
</tr>
<tr valign=top>
<td><a href="ogg_stream_packetpeek.html">ogg_stream_packetpeek</a></td>
<td>Provides access to the next packet in the bitstream without
advancing decoding.</td>
</tr>
</table>
<br><br>
<hr noshade>
<table border=0 width=100%>
<tr valign=top>
<td><p class=tiny>copyright &copy; 2000-2010 Xiph.Org</p></td>
<td align=right><p class=tiny><a href="http://www.xiph.org/ogg/">Ogg Container Format</a></p></td>
</tr><tr>
<td><p class=tiny>libogg documentation</p></td>
<td align=right><p class=tiny>libogg release 1.2.0 - 20100325</p></td>
</tr>
</table>
</body>
</html>

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<html>
<head>
<title>libogg - Encoding</title>
<link rel=stylesheet href="style.css" type="text/css">
</head>
<body bgcolor=white text=black link="#5555ff" alink="#5555ff" vlink="#5555ff">
<table border=0 width=100%>
<tr>
<td><p class=tiny>libogg documentation</p></td>
<td align=right><p class=tiny>libogg release 1.2.0 - 20100325</p></td>
</tr>
</table>
<h1>Encoding</h1>
<p>Libogg contains a set of functions used in the encoding process.
<p>
All the <b>libogg</b> specific functions are declared in "ogg/ogg.h".
<p>
<p>When encoding, the encoding engine will output raw packets which must be placed into an Ogg bitstream.
<p>Raw packets are inserted into the stream, and an <a href="ogg_page.html">ogg_page</a> is output when enough packets have been written to create a full page. The pages output are pointers to buffered packet segments, and can then be written out and saved as an ogg stream.
<p>There are a couple of basic steps:
<ul>
<li>Use the encoding engine to produce a raw packet of data.
<li>Call <a href="ogg_stream_packetin.html">ogg_stream_packetin</a> to submit a raw packet to the stream.
<li>Use <a href="ogg_stream_pageout.html">ogg_stream_pageout</a> to output a page, if enough data has been submitted. Otherwise, continue submitting data.
</ul>
<br><br>
<table border=1 color=black width=50% cellspacing=0 cellpadding=7>
<tr bgcolor=#cccccc>
<td><b>function</b></td>
<td><b>purpose</b></td>
</tr>
<tr valign=top>
<td><a href="ogg_stream_packetin.html">ogg_stream_packetin</a></td>
<td>Submits a raw packet to the streaming layer, so that it can be formed into a page.</td>
</tr>
<tr valign=top>
<td><a href="ogg_stream_iovecin.html">ogg_stream_iovecin</a></td>
<td>iovec version of ogg_stream_packetin() above.</td>
</tr>
<tr valign=top>
<td><a href="ogg_stream_pageout.html">ogg_stream_pageout</a></td>
<td>Outputs a completed page if the stream contains enough packets to form a full page.<td>
</tr>
<tr valign=top>
<td><a href="ogg_stream_flush.html">ogg_stream_flush</a></td>
<td>Forces any remaining packets in the stream to be returned as a page of any size.<td>
</tr>
</table>
<br><br>
<hr noshade>
<table border=0 width=100%>
<tr valign=top>
<td><p class=tiny>copyright &copy; 2000-2010 Xiph.Org</p></td>
<td align=right><p class=tiny><a href="http://www.xiph.org/ogg/">Ogg Container Format</a></p></td>
</tr><tr>
<td><p class=tiny>libogg documentation</p></td>
<td align=right><p class=tiny>libogg release 1.2.0 - 20100325</p></td>
</tr>
</table>
</body>
</html>

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ExternalLibs/libogg-1.2.0/doc/libogg/general.html
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<html>
<head>
<title>libogg - General Functions</title>
<link rel=stylesheet href="style.css" type="text/css">
</head>
<body bgcolor=white text=black link="#5555ff" alink="#5555ff" vlink="#5555ff">
<table border=0 width=100%>
<tr>
<td><p class=tiny>libogg documentation</p></td>
<td align=right><p class=tiny>libogg release 1.2.0 - 20100325</p></td>
</tr>
</table>
<h1>General Functions</h1>
<p>Libogg contains several functions which are generally useful when using Ogg streaming, whether encoding or decoding.
<p>
All the <b>libogg</b> specific functions are declared in "ogg/ogg.h".
<p>
<p>These functions can be used to manipulate some of the basic elements of Ogg - streams and pages. Streams and pages are important during both the encode and decode process.
<br>
<table border=1 color=black width=50% cellspacing=0 cellpadding=7>
<tr bgcolor=#cccccc>
<td><b>function</b></td>
<td><b>purpose</b></td>
</tr>
<tr valign=top>
<td><a href="ogg_stream_init.html">ogg_stream_init</a></td>
<td>Initializes an Ogg bitstream.</td>
</tr>
<tr valign=top>
<td><a href="ogg_stream_clear.html">ogg_stream_clear</a></td>
<td>Clears the storage within the Ogg stream, but does not free the stream itself.<td>
</tr>
<tr valign=top>
<td><a href="ogg_stream_reset.html">ogg_stream_reset</a></td>
<td>Resets the stream status to its initial position.</td>
</tr>
<tr valign=top>
<td><a href="ogg_stream_destroy.html">ogg_stream_destroy</a></td>
<td>Frees the entire Ogg stream.</td>
</tr>
<tr valign=top>
<td><a href="ogg_stream_check.html">ogg_stream_check</a></td>
<td>Check for asyncronous errors.</td>
</tr>
<tr valign=top>
<td><a href="ogg_stream_eos.html">ogg_stream_eos</a></td>
<td>Indicates whether we are at the end of the stream.</td>
</tr>
<tr valign=top>
<td><a href="ogg_page_version.html">ogg_page_version</a></td>
<td>Returns the version of ogg_page that this stream/page uses</td>
</tr>
<tr valign=top>
<td><a href="ogg_page_continued.html">ogg_page_continued</a></td>
<td>Indicates if the current page contains a continued packet from the last page.</td>
</tr>
<tr valign=top>
<td><a href="ogg_page_packets.html">ogg_page_packets</a></td>
<td>Indicates the number of packets contained in a page.</td>
</tr>
<tr valign=top>
<td><a href="ogg_page_bos.html">ogg_page_bos</a></td>
<td>Indicates if the current page is the beginning of the stream.</td>
</tr>
<tr valign=top>
<td><a href="ogg_page_eos.html">ogg_page_eos</a></td>
<td>Indicates if the current page is the end of the stream.</td>
</tr>
<tr valign=top>
<td><a href="ogg_page_granulepos.html">ogg_page_granulepos</a></td>
<td>Returns the precise playback location of this page.</td>
</tr>
<tr valign=top>
<td><a href="ogg_page_serialno.html">ogg_page_serialno</a></td>
<td>Returns the unique serial number of the logical bitstream associated with this page.</td>
</tr>
<tr valign=top>
<td><a href="ogg_page_pageno.html">ogg_page_pageno</a></td>
<td>Returns the sequential page number for this page.</td>
</tr>
<tr valign=top>
<td><a href="ogg_packet_clear.html">ogg_packet_clear</a></td>
<td>Clears the ogg_packet structure.</td>
</tr>
<tr valign=top>
<td><a href="ogg_page_checksum_set.html">ogg_page_checksum_set</a></td>
<td>Checksums an ogg_page.</td>
</tr>
</table>
<br><br>
<hr noshade>
<table border=0 width=100%>
<tr valign=top>
<td><p class=tiny>copyright &copy; 2000-2010 Xiph.Org</p></td>
<td align=right><p class=tiny><a href="http://www.xiph.org/ogg/">Ogg Container Format</a></p></td>
</tr><tr>
<td><p class=tiny>libogg documentation</p></td>
<td align=right><p class=tiny>libogg release 1.2.0 - 20100325</p></td>
</tr>
</table>
</body>
</html>

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ExternalLibs/libogg-1.2.0/doc/libogg/index.html
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<html>
<head>
<title>libogg - Documentation</title>
<link rel=stylesheet href="style.css" type="text/css">
</head>
<body bgcolor=white text=black link="#5555ff" alink="#5555ff" vlink="#5555ff">
<table border=0 width=100%>
<tr>
<td><p class=tiny>libogg documentation</p></td>
<td align=right><p class=tiny>libogg release 1.2.0 - 20100325</p></td>
</tr>
</table>
<h1>Libogg Documentation</h1>
<p>
Libogg contains necessary functionality to create, decode, and work with Ogg bitstreams.
<p>This document explains how to use the libogg API in detail.
<p>
<a href="overview.html">libogg api overview</a><br>
<a href="reference.html">libogg api reference</a><br>
<br><br>
<hr noshade>
<table border=0 width=100%>
<tr valign=top>
<td><p class=tiny>copyright &copy; 2000-2010 Xiph.Org</p></td>
<td align=right><p class=tiny><a href="http://www.xiph.org/ogg/">Ogg Container Format</a></p></td>
</tr><tr>
<td><p class=tiny>libogg documentation</p></td>
<td align=right><p class=tiny>libogg release 1.2.0 - 20100325</p></td>
</tr>
</table>
</body>
</html>

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ExternalLibs/libogg-1.2.0/doc/libogg/ogg_packet.html
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<html>
<head>
<title>libogg - datatype - ogg_packet</title>
<link rel=stylesheet href="style.css" type="text/css">
</head>
<body bgcolor=white text=black link="#5555ff" alink="#5555ff" vlink="#5555ff">
<table border=0 width=100%>
<tr>
<td><p class=tiny>libogg documentation</p></td>
<td align=right><p class=tiny>libogg release 1.2.0 - 20100325</p></td>
</tr>
</table>
<h1>ogg_packet</h1>
<p><i>declared in "ogg/ogg.h"</i></p>
<p>
The ogg_packet struct encapsulates the data for a single raw packet of data
and is used to transfer data between the ogg framing layer and the handling codec.
<p>
<table border=0 width=100% color=black cellspacing=0 cellpadding=7>
<tr bgcolor=#cccccc>
<td>
<pre><b>
typedef struct {
unsigned char *packet;
long bytes;
long b_o_s;
long e_o_s;
ogg_int64_t granulepos;
ogg_int64_t packetno;
} ogg_packet;
</b></pre>
</td>
</tr>
</table>
<h3>Relevant Struct Members</h3>
<dl>
<dt><i>packet</i></dt>
<dd>Pointer to the packet's data. This is treated as an opaque type by the ogg layer.</dd>
<dt><i>bytes</i></dt>
<dd>Indicates the size of the packet data in bytes. Packets can be of arbitrary size.</dd>
<dt><i>b_o_s</i></dt>
<dd>Flag indicating whether this packet begins a logical bitstream. <tt>1</tt> indicates this is the first packet, <tt>0</tt> indicates any other position in the stream.</dd>
<dt><i>e_o_s</i></dt>
<dd>Flag indicating whether this packet ends a bitstream. <tt>1</tt> indicates the last packet, <tt>0</tt> indicates any other position in the stream.</dd>
<dt><i>granulepos</i></dt>
<dd>A number indicating the position of this packet in the decoded data. This is the last sample, frame or other unit of information ('granule') that can be completely decoded from this packet.</dd>
<dt><i>packetno</i></dt>
<dd>Sequential number of this packet in the ogg bitstream.<dd>
</dl>
<br><br>
<hr noshade>
<table border=0 width=100%>
<tr valign=top>
<td><p class=tiny>copyright &copy; 2000-2010 Xiph.Org</p></td>
<td align=right><p class=tiny><a href="http://www.xiph.org/ogg/">Ogg Container Format</a></p></td>
</tr><tr>
<td><p class=tiny>libogg documentation</p></td>
<td align=right><p class=tiny>libogg release 1.2.0 - 20100325</p></td>
</tr>
</table>
</body>
</html>

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<html>
<head>
<title>libogg - function - ogg_packet_clear</title>
<link rel=stylesheet href="style.css" type="text/css">
</head>
<body bgcolor=white text=black link="#5555ff" alink="#5555ff" vlink="#5555ff">
<table border=0 width=100%>
<tr>
<td><p class=tiny>libogg documentation</p></td>
<td align=right><p class=tiny>libogg release 1.2.0 - 20100325</p></td>
</tr>
</table>
<h1>ogg_packet_clear</h1>
<p><i>declared in "ogg/ogg.h";</i></p>
<p>This function clears the memory used by the <a href="ogg_packet.html">ogg_packet</a> struct, and frees the internal allocated memory, but does not free
the structure itself.
<br><br>
<table border=0 color=black cellspacing=0 cellpadding=7>
<tr bgcolor=#cccccc>
<td>
<pre><b>
int ogg_packet_clear(ogg_packet *op);
</b></pre>
</td>
</tr>
</table>
<h3>Parameters</h3>
<dl>
<dt><i>os</i></dt>
<dd>Pointer to the ogg_packet struct to be cleared.</dd>
</dl>
<h3>Return Values</h3>
<blockquote>
<li>
None.</li>
</blockquote>
<p>
<br><br>
<hr noshade>
<table border=0 width=100%>
<tr valign=top>
<td><p class=tiny>copyright &copy; 2000-2010 Xiph.Org</p></td>
<td align=right><p class=tiny><a href="http://www.xiph.org/ogg/">Ogg Container Format</a></p></td>
</tr><tr>
<td><p class=tiny>libogg documentation</p></td>
<td align=right><p class=tiny>libogg release 1.2.0 - 20100325</p></td>
</tr>
</table>
</body>
</html>

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<html>
<head>
<title>libogg - datatype - ogg_page</title>
<link rel=stylesheet href="style.css" type="text/css">
</head>
<body bgcolor=white text=black link="#5555ff" alink="#5555ff" vlink="#5555ff">
<table border=0 width=100%>
<tr>
<td><p class=tiny>libogg documentation</p></td>
<td align=right><p class=tiny>libogg release 1.2.0 - 20100325</p></td>
</tr>
</table>
<h1>ogg_page</h1>
<p><i>declared in "ogg/ogg.h"</i></p>
<p>
The ogg_page struct encapsulates the data for an Ogg page.
<p>
Ogg pages are the fundamental unit of framing and interleave in an ogg bitstream.
They are made up of packet segments of 255 bytes each. There can be as many as
255 packet segments per page, for a maximum page size of a little under 64 kB.
This is not a practical limitation as the segments can be joined across
page boundaries allowing packets of arbitrary size. In practice pages are
usually around 4 kB.
<p>
<p>For a complete description of ogg pages and headers, please refer to the <a href="../framing.html">framing document</a>.
<table border=0 width=100% color=black cellspacing=0 cellpadding=7>
<tr bgcolor=#cccccc>
<td>
<pre><b>
typedef struct {
unsigned char *header;
long header_len;
unsigned char *body;
long body_len;
} ogg_page;
</b></pre>
</td>
</tr>
</table>
<h3>Relevant Struct Members</h3>
<dl>
<dt><i>header</i></dt>
<dd>Pointer to the page header for this page. The exact contents of this header are defined in the framing spec document.</dd>
<dt><i>header_len</i></dt>
<dd>Length of the page header in bytes.</a>
<dt><i>body</i></dt>
<dd>Pointer to the data for this page.</dd>
<dt><i>body_len</i></dt>
<dd>Length of the body data in bytes.</dd>
</dl>
<br><br>
<hr noshade>
<table border=0 width=100%>
<tr valign=top>
<td><p class=tiny>copyright &copy; 2000-2010 Xiph.Org</p></td>
<td align=right><p class=tiny><a href="http://www.xiph.org/ogg/">Ogg Container Format</a></p></td>
</tr><tr>
<td><p class=tiny>libogg documentation</p></td>
<td align=right><p class=tiny>libogg release 1.2.0 - 20100325</p></td>
</tr>
</table>
</body>
</html>

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<html>
<head>
<title>libogg - function - ogg_page_bos</title>
<link rel=stylesheet href="style.css" type="text/css">
</head>
<body bgcolor=white text=black link="#5555ff" alink="#5555ff" vlink="#5555ff">
<table border=0 width=100%>
<tr>
<td><p class=tiny>libogg documentation</p></td>
<td align=right><p class=tiny>libogg release 1.2.0 - 20100325</p></td>
</tr>
</table>
<h1>ogg_page_bos</h1>
<p><i>declared in "ogg/ogg.h";</i></p>
<p>Indicates whether this page is at the beginning of the logical bitstream.
<p>
<br><br>
<table border=0 color=black cellspacing=0 cellpadding=7>
<tr bgcolor=#cccccc>
<td>
<pre><b>
int ogg_page_bos(ogg_page *og);
</b></pre>
</td>
</tr>
</table>
<h3>Parameters</h3>
<dl>
<dt><i>og</i></dt>
<dd>Pointer to the current ogg_page struct.</dd>
</dl>
<h3>Return Values</h3>
<blockquote>
<li>
greater than 0 if this page is the beginning of a bitstream.</li>
<li>
0 if this page is from any other location in the stream.</li>
</blockquote>
<p>
<br><br>
<hr noshade>
<table border=0 width=100%>
<tr valign=top>
<td><p class=tiny>copyright &copy; 2000-2010 Xiph.Org</p></td>
<td align=right><p class=tiny><a href="http://www.xiph.org/ogg/">Ogg Container Format</a></p></td>
</tr><tr>
<td><p class=tiny>libogg documentation</p></td>
<td align=right><p class=tiny>libogg release 1.2.0 - 20100325</p></td>
</tr>
</table>
</body>
</html>

62
ExternalLibs/libogg-1.2.0/doc/libogg/ogg_page_checksum_set.html
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<html>
<head>
<title>libogg - function - ogg_page_checksum_set</title>
<link rel=stylesheet href="style.css" type="text/css">
</head>
<body bgcolor=white text=black link="#5555ff" alink="#5555ff" vlink="#5555ff">
<table border=0 width=100%>
<tr>
<td><p class=tiny>libogg documentation</p></td>
<td align=right><p class=tiny>libogg release 1.2.0 - 20100325</p></td>
</tr>
</table>
<h1>ogg_page_checksum_set</h1>
<p><i>declared in "ogg/ogg.h";</i></p>
<p>Checksums an ogg_page.
<p>
<br><br>
<table border=0 color=black cellspacing=0 cellpadding=7>
<tr bgcolor=#cccccc>
<td>
<pre><b>
int ogg_page_checksum_set(ogg_page *og);
</b></pre>
</td>
</tr>
</table>
<h3>Parameters</h3>
<dl>
<dt><i>og</i></dt>
<dd>Pointer to an ogg_page struct.</dd>
</dl>
<h3>Return Values</h3>
<blockquote>
None.
</blockquote>
<p>
<br><br>
<hr noshade>
<table border=0 width=100%>
<tr valign=top>
<td><p class=tiny>copyright &copy; 2000-2010 Xiph.Org</p></td>
<td align=right><p class=tiny><a href="http://www.xiph.org/ogg/">Ogg Container Format</a></p></td>
</tr><tr>
<td><p class=tiny>libogg documentation</p></td>
<td align=right><p class=tiny>libogg release 1.2.0 - 20100325</p></td>
</tr>
</table>
</body>
</html>

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<html>
<head>
<title>libogg - function - ogg_page_version</title>
<link rel=stylesheet href="style.css" type="text/css">
</head>
<body bgcolor=white text=black link="#5555ff" alink="#5555ff" vlink="#5555ff">
<table border=0 width=100%>
<tr>
<td><p class=tiny>libogg documentation</p></td>
<td align=right><p class=tiny>libogg release 1.2.0 - 20100325</p></td>
</tr>
</table>
<h1>ogg_page_continued</h1>
<p><i>declared in "ogg/ogg.h";</i></p>
<p>Indicates whether this page contains packet data which has been continued from the previous page.
<br><br>
<table border=0 color=black cellspacing=0 cellpadding=7>
<tr bgcolor=#cccccc>
<td>
<pre><b>
int ogg_page_continued(ogg_page *og);
</b></pre>
</td>
</tr>
</table>
<h3>Parameters</h3>
<dl>
<dt><i>og</i></dt>
<dd>Pointer to the current ogg_page struct.</dd>
</dl>
<h3>Return Values</h3>
<blockquote>
<li>
1 if this page contains packet data continued from the last page.</li>
<li>
0 if this page does not contain continued data.</li>
</blockquote>
<p>
<br><br>
<hr noshade>
<table border=0 width=100%>
<tr valign=top>
<td><p class=tiny>copyright &copy; 2000-2010 Xiph.Org</p></td>
<td align=right><p class=tiny><a href="http://www.xiph.org/ogg/">Ogg Container Format</a></p></td>
</tr><tr>
<td><p class=tiny>libogg documentation</p></td>
<td align=right><p class=tiny>libogg release 1.2.0 - 20100325</p></td>
</tr>
</table>
</body>
</html>

65
ExternalLibs/libogg-1.2.0/doc/libogg/ogg_page_eos.html
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<html>
<head>
<title>libogg - function - ogg_page_eos</title>
<link rel=stylesheet href="style.css" type="text/css">
</head>
<body bgcolor=white text=black link="#5555ff" alink="#5555ff" vlink="#5555ff">
<table border=0 width=100%>
<tr>
<td><p class=tiny>libogg documentation</p></td>
<td align=right><p class=tiny>libogg release 1.2.0 - 20100325</p></td>
</tr>
</table>
<h1>ogg_page_eos</h1>
<p><i>declared in "ogg/ogg.h";</i></p>
<p>Indicates whether this page is at the end of the logical bitstream.
<p>
<br><br>
<table border=0 color=black cellspacing=0 cellpadding=7>
<tr bgcolor=#cccccc>
<td>
<pre><b>
int ogg_page_eos(ogg_page *og);
</b></pre>
</td>
</tr>
</table>
<h3>Parameters</h3>
<dl>
<dt><i>og</i></dt>
<dd>Pointer to the current ogg_page struct.</dd>
</dl>
<h3>Return Values</h3>
<blockquote>
<li>
greater than zero if this page contains the end of a bitstream.</li>
<li>
0 if this page is from any other location in the stream.</li>
</blockquote>
<p>
<br><br>
<hr noshade>
<table border=0 width=100%>
<tr valign=top>
<td><p class=tiny>copyright &copy; 2000-2010 Xiph.Org</p></td>
<td align=right><p class=tiny><a href="http://www.xiph.org/ogg/">Ogg Container Format</a></p></td>
</tr><tr>
<td><p class=tiny>libogg documentation</p></td>
<td align=right><p class=tiny>libogg release 1.2.0 - 20100325</p></td>
</tr>
</table>
</body>
</html>

65
ExternalLibs/libogg-1.2.0/doc/libogg/ogg_page_granulepos.html
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<html>
<head>
<title>libogg - function - ogg_page_granulepos</title>
<link rel=stylesheet href="style.css" type="text/css">
</head>
<body bgcolor=white text=black link="#5555ff" alink="#5555ff" vlink="#5555ff">
<table border=0 width=100%>
<tr>
<td><p class=tiny>libogg documentation</p></td>
<td align=right><p class=tiny>libogg release 1.2.0 - 20100325</p></td>
</tr>
</table>
<h1>ogg_page_granulepos</h1>
<p><i>declared in "ogg/ogg.h";</i></p>
<p>Returns the exact granular position of the packet data contained at the end of this page.
<p>This is useful for tracking location when seeking or decoding.
<p>For example, in audio codecs this position is the pcm sample number and in video this is the frame number.
<p>
<br><br>
<table border=0 color=black cellspacing=0 cellpadding=7>
<tr bgcolor=#cccccc>
<td>
<pre><b>
ogg_in64_t ogg_page_granulepos(ogg_page *og);
</b></pre>
</td>
</tr>
</table>
<h3>Parameters</h3>
<dl>
<dt><i>og</i></dt>
<dd>Pointer to the current ogg_page struct.</dd>
</dl>
<h3>Return Values</h3>
<blockquote>
<li>
<i>n</i> is the specific last granular position of the decoded data contained in the page.</li>
</blockquote>
<p>
<br><br>
<hr noshade>
<table border=0 width=100%>
<tr valign=top>
<td><p class=tiny>copyright &copy; 2000-2010 Xiph.Org</p></td>
<td align=right><p class=tiny><a href="http://www.xiph.org/ogg/">Ogg Container Format</a></p></td>
</tr><tr>
<td><p class=tiny>libogg documentation</p></td>
<td align=right><p class=tiny>libogg release 1.2.0 - 20100325</p></td>
</tr>
</table>
</body>
</html>

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ExternalLibs/libogg-1.2.0/doc/libogg/ogg_page_packets.html
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<html>
<head>
<title>libogg - function - ogg_page_packets</title>
<link rel=stylesheet href="style.css" type="text/css">
</head>
<body bgcolor=white text=black link="#5555ff" alink="#5555ff" vlink="#5555ff">
<table border=0 width=100%>
<tr>
<td><p class=tiny>libogg documentation</p></td>
<td align=right><p class=tiny>libogg release 1.2.0 - 20100325</p></td>
</tr>
</table>
<h1>ogg_page_packets</h1>
<p><i>declared in "ogg/ogg.h";</i></p>
<p>Returns the number of packets that are completed on this page. If the
leading packet is begun on a previous page, but ends on this page, it's
counted.
<p>
<br><br>
<table border=0 color=black cellspacing=0 cellpadding=7>
<tr bgcolor=#cccccc>
<td>
<pre><b>
int ogg_page_packets(ogg_page *og);
</b></pre>
</td>
</tr>
</table>
<h3>Parameters</h3>
<dl>
<dt><i>og</i></dt>
<dd>Pointer to the current ogg_page struct.</dd>
</dl>
<h3>Return Values</h3>
<blockquote>
If a page consists of a packet begun on a previous page, and a new packet
begun (but not completed) on this page, the return will be:<br>
<br>
ogg_page_packets(page) will return 1,<br>
ogg_page_continued(paged) will return non-zero.<br>
<br><br>
If a page happens to be a single packet that was begun on a previous page, and
spans to the next page (in the case of a three or more page packet), the
return will be:<br>
<br>
ogg_page_packets(page) will return 0,<br>
ogg_page_continued(page) will return non-zero.<br>
</blockquote>
<p>
<br><br>
<hr noshade>
<table border=0 width=100%>
<tr valign=top>
<td><p class=tiny>copyright &copy; 2000-2010 Xiph.Org</p></td>
<td align=right><p class=tiny><a href="http://www.xiph.org/ogg/">Ogg Container Format</a></p></td>
</tr><tr>
<td><p class=tiny>libogg documentation</p></td>
<td align=right><p class=tiny>libogg release 1.2.0 - 20100325</p></td>
</tr>
</table>
</body>
</html>

63
ExternalLibs/libogg-1.2.0/doc/libogg/ogg_page_pageno.html
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<html>
<head>
<title>libogg - function - ogg_page_pageno</title>
<link rel=stylesheet href="style.css" type="text/css">
</head>
<body bgcolor=white text=black link="#5555ff" alink="#5555ff" vlink="#5555ff">
<table border=0 width=100%>
<tr>
<td><p class=tiny>libogg documentation</p></td>
<td align=right><p class=tiny>libogg release 1.2.0 - 20100325</p></td>
</tr>
</table>
<h1>ogg_page_pageno</h1>
<p><i>declared in "ogg/ogg.h";</i></p>
<p>Returns the sequential page number.
<p>This is useful for ordering pages or determining when pages have been lost.
<br><br>
<table border=0 color=black cellspacing=0 cellpadding=7>
<tr bgcolor=#cccccc>
<td>
<pre><b>
long ogg_page_pageno(ogg_page *og);
</b></pre>
</td>
</tr>
</table>
<h3>Parameters</h3>
<dl>
<dt><i>og</i></dt>
<dd>Pointer to the current ogg_page struct.</dd>
</dl>
<h3>Return Values</h3>
<blockquote>
<li>
<i>n</i> is the page number for this page.</li>
</blockquote>
<p>
<br><br>
<hr noshade>
<table border=0 width=100%>
<tr valign=top>
<td><p class=tiny>copyright &copy; 2000-2010 Xiph.Org</p></td>
<td align=right><p class=tiny><a href="http://www.xiph.org/ogg/">Ogg Container Format</a></p></td>
</tr><tr>
<td><p class=tiny>libogg documentation</p></td>
<td align=right><p class=tiny>libogg release 1.2.0 - 20100325</p></td>
</tr>
</table>
</body>
</html>

63
ExternalLibs/libogg-1.2.0/doc/libogg/ogg_page_serialno.html
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<html>
<head>
<title>libogg - function - ogg_page_serialno</title>
<link rel=stylesheet href="style.css" type="text/css">
</head>
<body bgcolor=white text=black link="#5555ff" alink="#5555ff" vlink="#5555ff">
<table border=0 width=100%>
<tr>
<td><p class=tiny>libogg documentation</p></td>
<td align=right><p class=tiny>libogg release 1.2.0 - 20100325</p></td>
</tr>
</table>
<h1>ogg_page_serialno</h1>
<p><i>declared in "ogg/ogg.h";</i></p>
<p>Returns the unique serial number for the logical bitstream of this page. Each page contains the serial number for the logical bitstream that it belongs to.
<p>
<br><br>
<table border=0 color=black cellspacing=0 cellpadding=7>
<tr bgcolor=#cccccc>
<td>
<pre><b>
int ogg_page_serialno(ogg_page *og);
</b></pre>
</td>
</tr>
</table>
<h3>Parameters</h3>
<dl>
<dt><i>og</i></dt>
<dd>Pointer to the current ogg_page struct.</dd>
</dl>
<h3>Return Values</h3>
<blockquote>
<li>
<i>n</i> is the serial number for this page.</li>
</blockquote>
<p>
<br><br>
<hr noshade>
<table border=0 width=100%>
<tr valign=top>
<td><p class=tiny>copyright &copy; 2000-2010 Xiph.Org</p></td>
<td align=right><p class=tiny><a href="http://www.xiph.org/ogg/">Ogg Container Format</a></p></td>
</tr><tr>
<td><p class=tiny>libogg documentation</p></td>
<td align=right><p class=tiny>libogg release 1.2.0 - 20100325</p></td>
</tr>
</table>
</body>
</html>

63
ExternalLibs/libogg-1.2.0/doc/libogg/ogg_page_version.html
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@ -1,63 +0,0 @@
<html>
<head>
<title>libogg - function - ogg_page_version</title>
<link rel=stylesheet href="style.css" type="text/css">
</head>
<body bgcolor=white text=black link="#5555ff" alink="#5555ff" vlink="#5555ff">
<table border=0 width=100%>
<tr>
<td><p class=tiny>libogg documentation</p></td>
<td align=right><p class=tiny>libogg release 1.2.0 - 20100325</p></td>
</tr>
</table>
<h1>ogg_page_version</h1>
<p><i>declared in "ogg/ogg.h";</i></p>
<p>This function returns the version of ogg_page used in this page.
<p>In current versions of libogg, all ogg_page structs have the same version, so 0 should always be returned.
<br><br>
<table border=0 color=black cellspacing=0 cellpadding=7>
<tr bgcolor=#cccccc>
<td>
<pre><b>
int ogg_page_version(ogg_page *og);
</b></pre>
</td>
</tr>
</table>
<h3>Parameters</h3>
<dl>
<dt><i>og</i></dt>
<dd>Pointer to the current ogg_page struct.</dd>
</dl>
<h3>Return Values</h3>
<blockquote>
<li>
<i>n</i> is the version number. In the current version of Ogg, the version number is always 0. Nonzero return values indicate an error in page encoding.</li>
</blockquote>
<p>
<br><br>
<hr noshade>
<table border=0 width=100%>
<tr valign=top>
<td><p class=tiny>copyright &copy; 2000-2010 Xiph.Org</p></td>
<td align=right><p class=tiny><a href="http://www.xiph.org/ogg/">Ogg Container Format</a></p></td>
</tr><tr>
<td><p class=tiny>libogg documentation</p></td>
<td align=right><p class=tiny>libogg release 1.2.0 - 20100325</p></td>
</tr>
</table>
</body>
</html>

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<html>
<head>
<title>libogg - function - ogg_stream_clear</title>
<link rel=stylesheet href="style.css" type="text/css">
</head>
<body bgcolor=white text=black link="#5555ff" alink="#5555ff" vlink="#5555ff">
<table border=0 width=100%>
<tr>
<td><p class=tiny>libogg documentation</p></td>
<td align=right><p class=tiny>libogg release 1.2.0 - 20100325</p></td>
</tr>
</table>
<h1>ogg_stream_clear</h1>
<p><i>declared in "ogg/ogg.h";</i></p>
<p>This function clears and frees the internal memory used by the <a href="ogg_sync_state.html">ogg_stream_state</a> struct, but does not free the structure itself. It is safe to call ogg_stream_clear on the same structure more than once.
<br><br>
<table border=0 color=black cellspacing=0 cellpadding=7>
<tr bgcolor=#cccccc>
<td>
<pre><b>
int ogg_stream_clear(ogg_stream_state *os);
</b></pre>
</td>
</tr>
</table>
<h3>Parameters</h3>
<dl>
<dt><i>os</i></dt>
<dd>Pointer to the ogg_stream_state struct to be cleared.</dd>
</dl>
<h3>Return Values</h3>
<blockquote>
<li>
0 is always returned.</li>
</blockquote>
<p>
<br><br>
<hr noshade>
<table border=0 width=100%>
<tr valign=top>
<td><p class=tiny>copyright &copy; 2000-2010 Xiph.Org</p></td>
<td align=right><p class=tiny><a href="http://www.xiph.org/ogg/">Ogg Container Format</a></p></td>
</tr><tr>
<td><p class=tiny>libogg documentation</p></td>
<td align=right><p class=tiny>libogg release 1.2.0 - 20100325</p></td>
</tr>
</table>
</body>
</html>

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<html>
<head>
<title>libogg - function - ogg_stream_destroy</title>
<link rel=stylesheet href="style.css" type="text/css">
</head>
<body bgcolor=white text=black link="#5555ff" alink="#5555ff" vlink="#5555ff">
<table border=0 width=100%>
<tr>
<td><p class=tiny>libogg documentation</p></td>
<td align=right><p class=tiny>libogg release 1.2.0 - 20100325</p></td>
</tr>
</table>
<h1>ogg_stream_destroy</h1>
<p><i>declared in "ogg/ogg.h";</i></p>
<p>This function frees the internal memory used by
the <a href="ogg_stream_state.html">ogg_stream_state</a> struct as
well as the structure itself.
<p>This should be called when you are done working with an ogg stream.
It can also be called to make sure that the struct does not exist.</p>
<p>It calls free() on its argument, so if the ogg_stream_state
is not malloc()'d or will otherwise be freed by your own code, use
<a href="ogg_stream_clear.html">ogg_stream_clear</a> instead.</p>
<br><br>
<table border=0 color=black cellspacing=0 cellpadding=7>
<tr bgcolor=#cccccc>
<td>
<pre><b>
int ogg_stream_destroy(ogg_stream_state *os);
</b></pre>
</td>
</tr>
</table>
<h3>Parameters</h3>
<dl>
<dt><i>os</i></dt>
<dd>Pointer to the ogg_stream_state struct to be destroyed.</dd>
</dl>
<h3>Return Values</h3>
<blockquote>
<li>
0 is always returned.</li>
</blockquote>
<p>
<br><br>
<hr noshade>
<table border=0 width=100%>
<tr valign=top>
<td><p class=tiny>copyright &copy; 2000-2010 Xiph.Org</p></td>
<td align=right><p class=tiny><a href="http://www.xiph.org/ogg/">Ogg Container Format</a></p></td>
</tr><tr>
<td><p class=tiny>libogg documentation</p></td>
<td align=right><p class=tiny>libogg release 1.2.0 - 20100325</p></td>
</tr>
</table>
</body>
</html>

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<html>
<head>
<title>libogg - function - ogg_stream_eos</title>
<link rel=stylesheet href="style.css" type="text/css">
</head>
<body bgcolor=white text=black link="#5555ff" alink="#5555ff" vlink="#5555ff">
<table border=0 width=100%>
<tr>
<td><p class=tiny>libogg documentation</p></td>
<td align=right><p class=tiny>libogg release 1.2.0 - 20100325</p></td>
</tr>
</table>
<h1>ogg_stream_eos</h1>
<p><i>declared in "ogg/ogg.h";</i></p>
<p>This function indicates whether we have reached the end of the stream or not.
<br><br>
<table border=0 color=black cellspacing=0 cellpadding=7>
<tr bgcolor=#cccccc>
<td>
<pre><b>
int ogg_stream_eos(ogg_stream_state *os);
</b></pre>
</td>
</tr>
</table>
<h3>Parameters</h3>
<dl>
<dt><i>os</i></dt>
<dd>Pointer to the current ogg_stream_state struct.</dd>
</dl>
<h3>Return Values</h3>
<blockquote>
<li>1 if we are at the end of the stream or an internal error occurred.</li>
<li>
0 if we have not yet reached the end of the stream.</li>
</blockquote>
<p>
<br><br>
<hr noshade>
<table border=0 width=100%>
<tr valign=top>
<td><p class=tiny>copyright &copy; 2000-2010 Xiph.Org</p></td>
<td align=right><p class=tiny><a href="http://www.xiph.org/ogg/">Ogg Container Format</a></p></td>
</tr><tr>
<td><p class=tiny>libogg documentation</p></td>
<td align=right><p class=tiny>libogg release 1.2.0 - 20100325</p></td>
</tr>
</table>
</body>
</html>

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<html>
<head>
<title>libogg - function - ogg_stream_flush</title>
<link rel=stylesheet href="style.css" type="text/css">
</head>
<body bgcolor=white text=black link="#5555ff" alink="#5555ff" vlink="#5555ff">
<table border=0 width=100%>
<tr>
<td><p class=tiny>libogg documentation</p></td>
<td align=right><p class=tiny>libogg release 1.2.0 - 20100325</p></td>
</tr>
</table>
<h1>ogg_stream_flush</h1>
<p><i>declared in "ogg/ogg.h";</i></p>
<p>This function checks for remaining packets inside the stream and forces remaining packets into a page, regardless of the size of the page.
<p>This should only be used when you want to flush an undersized page from the middle of the stream. Otherwise, <a href="ogg_stream_pageout.html">ogg_stream_pageout</a> should always be used.
<p>This function can be used to verify that all packets have been flushed. If the return value is 0, all packets have been placed into a page.
<br><br>
<table border=0 color=black cellspacing=0 cellpadding=7>
<tr bgcolor=#cccccc>
<td>
<pre><b>
int ogg_stream_flush(<a href="ogg_stream_state.html">ogg_stream_state</a> *os, <a href="ogg_page.html">ogg_page</a> *og);
</b></pre>
</td>
</tr>
</table>
<h3>Parameters</h3>
<dl>
<dt><i>os</i></dt>
<dd>Pointer to a previously declared <a href="ogg_stream_state.html">ogg_stream_state</a> struct, which represents the current logical bitstream.</dd>
<dt><i>og</i></dt>
<dd>Pointer to a page of data. The remaining packets in the stream will be placed into this page, if any remain.
</dl>
<h3>Return Values</h3>
<blockquote>
<li>0 means that all packet data has already been flushed into pages, and there are no packets to put into the page. 0 is also returned in the case of an <a href="ogg_stream_state.html">ogg_stream_state</a> that has been cleared explicitly or implicitly due to an internal error.</li>
<li>
Nonzero means that remaining packets have successfully been flushed into the page.</li>
</blockquote>
<p>
<br><br>
<hr noshade>
<table border=0 width=100%>
<tr valign=top>
<td><p class=tiny>copyright &copy; 2000-2010 Xiph.Org</p></td>
<td align=right><p class=tiny><a href="http://www.xiph.org/ogg/">Ogg Container Format</a></p></td>
</tr><tr>
<td><p class=tiny>libogg documentation</p></td>
<td align=right><p class=tiny>libogg release 1.2.0 - 20100325</p></td>
</tr>
</table>
</body>
</html>

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<html>
<head>
<title>libogg - function - ogg_stream_init</title>
<link rel=stylesheet href="style.css" type="text/css">
</head>
<body bgcolor=white text=black link="#5555ff" alink="#5555ff" vlink="#5555ff">
<table border=0 width=100%>
<tr>
<td><p class=tiny>libogg documentation</p></td>
<td align=right><p class=tiny>libogg release 1.2.0 - 20100325</p></td>
</tr>
</table>
<h1>ogg_stream_init</h1>
<p><i>declared in "ogg/ogg.h";</i></p>
<p>This function is used to initialize an <a href="ogg_sync_state.html">ogg_stream_state</a> struct and allocates appropriate memory in preparation for encoding or decoding.
<p>It also assigns the stream a given serial number.
<br><br>
<table border=0 color=black cellspacing=0 cellpadding=7>
<tr bgcolor=#cccccc>
<td>
<pre><b>
int ogg_stream_init(<a href="ogg_stream_state.html">ogg_stream_state</a> *os,int serialno);
</b></pre>
</td>
</tr>
</table>
<h3>Parameters</h3>
<dl>
<dt><i>os</i></dt>
<dd>Pointer to the ogg_stream_state struct that we will be initializing.</dd>
<dt><i>serialno</i></dt>
<dd>Serial number that we will attach to this stream.</dd>
</dl>
<h3>Return Values</h3>
<blockquote>
<li>
0 if successful</li>
<li>
-1 if unsuccessful.</li>
</blockquote>
<p>
<br><br>
<hr noshade>
<table border=0 width=100%>
<tr valign=top>
<td><p class=tiny>copyright &copy; 2000-2010 Xiph.Org</p></td>
<td align=right><p class=tiny><a href="http://www.xiph.org/ogg/">Ogg Container Format</a></p></td>
</tr><tr>
<td><p class=tiny>libogg documentation</p></td>
<td align=right><p class=tiny>libogg release 1.2.0 - 20100325</p></td>
</tr>
</table>
</body>
</html>

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<html>
<head>
<title>libogg - function - ogg_stream_packetin</title>
<link rel=stylesheet href="style.css" type="text/css">
</head>
<body bgcolor=white text=black link="#5555ff" alink="#5555ff" vlink="#5555ff">
<table border=0 width=100%>
<tr>
<td><p class=tiny>libogg documentation</p></td>
<td align=right><p class=tiny>libogg release 1.2.0 - 20100325</p></td>
</tr>
</table>
<h1>ogg_stream_packetin</h1>
<p><i>declared in "ogg/ogg.h";</i></p>
<p>This function submits a packet to the bitstream for page
encapsulation. After this is called, more packets can be submitted,
or pages can be written out.</p>
<p>In a typical encoding situation, this should be used after filling a
packet with data.
The data in the packet is copied into the internal storage managed by
the <a href="ogg_stream_state.html">ogg_stream_state</a>, so the caller
is free to alter the contents of <i>op</i> after this call has returned.
<br><br>
<table border=0 color=black cellspacing=0 cellpadding=7>
<tr bgcolor=#cccccc>
<td>
<pre><b>
int ogg_stream_packetin(ogg_stream_state *os,ogg_packet *op);
</b></pre>
</td>
</tr>
</table>
<h3>Parameters</h3>
<dl>
<dt><i>os</i></dt>
<dd>Pointer to a previously declared <a href="ogg_stream_state.html">ogg_stream_state</a> struct.</dd>
<dt><i>op</i></dt>
<dd>Pointer to the packet we are putting into the bitstream.
</dl>
<h3>Return Values</h3>
<blockquote>
<li>
0 returned on success. -1 returned in the event of internal error.</li>
</blockquote>
<p>
<br><br>
<hr noshade>
<table border=0 width=100%>
<tr valign=top>
<td><p class=tiny>copyright &copy; 2000-2010 Xiph.Org</p></td>
<td align=right><p class=tiny><a href="http://www.xiph.org/ogg/">Ogg Container Format</a></p></td>
</tr><tr>
<td><p class=tiny>libogg documentation</p></td>
<td align=right><p class=tiny>libogg release 1.2.0 - 20100325</p></td>
</tr>
</table>
</body>
</html>

85
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<html>
<head>
<title>libogg - function - ogg_stream_packetout</title>
<link rel=stylesheet href="style.css" type="text/css">
</head>
<body bgcolor=white text=black link="#5555ff" alink="#5555ff" vlink="#5555ff">
<table border=0 width=100%>
<tr>
<td><p class=tiny>libogg documentation</p></td>
<td align=right><p class=tiny>libogg release 1.2.0 - 20100325</p></td>
</tr>
</table>
<h1>ogg_stream_packetout</h1>
<p><i>declared in "ogg/ogg.h";</i></p>
<p>This function assembles a data packet for output to the codec
decoding engine. The data has already been submitted to the
<a href="ogg_stream_state.html">ogg_stream_state</a> and broken
into segments. Each successive call returns the next complete packet
built from those segments.</p>
<p>In a typical decoding situation, this should be used after calling
<a href="ogg_stream_pagein.html">ogg_stream_pagein()</a> to submit a
page of data to the bitstream. If the function returns 0, more data is
needed and another page should be submitted. A non-zero return value
indicates successful return of a packet.</p>
<p>The <i>op</i> is filled in with pointers to memory managed by
the stream state and is only valid until the next call. The client
must copy the packet data if a longer lifetime is required.</p>
<br><br>
<table border=0 color=black cellspacing=0 cellpadding=7>
<tr bgcolor=#cccccc>
<td>
<pre><b>
int ogg_stream_packetout(ogg_stream_state *os,ogg_packet *op);
</b></pre>
</td>
</tr>
</table>
<h3>Parameters</h3>
<dl>
<dt><i>os</i></dt>
<dd>Pointer to a previously declared <a
href="ogg_stream_state.html">ogg_stream_state</a> struct. Before this function is called, an <a href="ogg_page.html">ogg_page</a> should be submitted to the stream using <a href="ogg_stream_pagein.html">ogg_stream_pagein()</a>.</dd>
<dt><i>op</i></dt>
<dd>Pointer to the packet to be filled in with pointers to the new data.
This will typically be submitted to a codec for decode after this
function is called. The pointers are only valid until the next call
on this stream state.</dd>
</dl>
<h3>Return Values</h3>
<blockquote>
<ul>
<li>-1 if we are out of sync and there is a gap in the data. This is usually a recoverable error and subsequent calls to ogg_stream_packetout are likely to succeed. <i>op</i> has not been updated.</li>
<li>0 if there is insufficient data available to complete a packet, or on unrecoverable internal error occurred. <i>op</i> has not been updated.
<li>1 if a packet was assembled normally. <i>op</i> contains the next packet from the stream.</li>
</ul>
</blockquote>
<br><br>
<hr noshade>
<table border=0 width=100%>
<tr valign=top>
<td><p class=tiny>copyright &copy; 2000-2010 xiph.org</p></td>
<td align=right><p class=tiny><a href="http://www.xiph.org/ogg/">Ogg Container Format</a></p></td>
</tr><tr>
<td><p class=tiny>libogg documentation</p></td>
<td align=right><p class=tiny>libogg release 1.2.0 - 20100325</p></td>
</tr>
</table>
</body>
</html>

85
ExternalLibs/libogg-1.2.0/doc/libogg/ogg_stream_packetpeek.html
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<html>
<head>
<title>libogg - function - ogg_stream_packetpeek</title>
<link rel=stylesheet href="style.css" type="text/css">
</head>
<body bgcolor=white text=black link="#5555ff" alink="#5555ff" vlink="#5555ff">
<table border=0 width=100%>
<tr>
<td><p class=tiny>libogg documentation</p></td>
<td align=right><p class=tiny>libogg release 1.2.0 - 20100325</p></td>
</tr>
</table>
<h1>ogg_stream_packetpeek</h1>
<p><i>declared in "ogg/ogg.h";</i></p>
<p>This function attempts to assemble a raw data packet and returns
it without advancing decoding.</p>
<p>In a typical situation, this would be called
speculatively after <a
href="ogg_stream_pagein.html">ogg_stream_pagein()</a> to check
the packet contents before handing it off to a codec for
decompression. To advance page decoding and remove
the packet from the sync structure, call
<a href="ogg_stream_packetout.html">ogg_stream_packetout()</a>.</p>
<br><br>
<table border=0 color=black cellspacing=0 cellpadding=7>
<tr bgcolor=#cccccc>
<td>
<pre><b>
int ogg_stream_packetpeek(ogg_stream_state *os,ogg_packet *op);
</b></pre>
</td>
</tr>
</table>
<h3>Parameters</h3>
<dl>
<dt><i>os</i></dt>
<dd>Pointer to a previously declared
<a href="ogg_stream_state.html">ogg_stream_state</a> struct. Before this
function is called, an <a href="ogg_page.html">ogg_page</a> should be
submitted to the stream using
<a href="ogg_stream_pagein.html">ogg_stream_pagein()</a>.</dd>
<dt><i>op</i></dt>
<dd>Pointer to the next packet available in the bitstream, if
any. A NULL value may be passed in the case of a simple "is there a
packet?" check.</dd>
</dl>
<h3>Return Values</h3>
<blockquote>
<ul>
<li>-1 if there's no packet available due to lost sync or a hole in the data.</li>
<li>0 if there is insufficient data available to complete a packet, or on unrecoverable internal error occurred.</li>
<li>1 if a packet is available.</li>
</ul>
</blockquote>
<br><br>
<hr noshade>
<table border=0 width=100%>
<tr valign=top>
<td><p class=tiny>copyright &copy; 2000-2010 Xiph.Org</p></td>
<td align=right><p class=tiny><a href="http://www.xiph.org/ogg/">Ogg Container Format</a></p></td>
</tr><tr>
<td><p class=tiny>libogg documentation</p></td>
<td align=right><p class=tiny>libogg release 1.2.0 - 20100325</p></td>
</tr>
</table>
</body>
</html>

67
ExternalLibs/libogg-1.2.0/doc/libogg/ogg_stream_pagein.html
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<html>
<head>
<title>libogg - function - ogg_stream_pagein</title>
<link rel=stylesheet href="style.css" type="text/css">
</head>
<body bgcolor=white text=black link="#5555ff" alink="#5555ff" vlink="#5555ff">
<table border=0 width=100%>
<tr>
<td><p class=tiny>libogg documentation</p></td>
<td align=right><p class=tiny>libogg release 1.2.0 - 20100325</p></td>
</tr>
</table>
<h1>ogg_stream_pagein</h1>
<p><i>declared in "ogg/ogg.h";</i></p>
<p>This function adds a complete page to the bitstream.
<p>In a typical decoding situation, this function would be called after using <a href="ogg_sync_pageout.html">ogg_sync_pageout</a> to create a valid <a href="ogg_page.html">ogg_page</a> struct.
<p>Internally, this function breaks the page into packet segments in preparation for outputting a valid packet to the codec decoding layer.
<br><br>
<table border=0 color=black cellspacing=0 cellpadding=7>
<tr bgcolor=#cccccc>
<td>
<pre><b>
int ogg_stream_pagein(<a href="ogg_stream_state.html">ogg_stream_state</a> *os, <a href="ogg_page.html">ogg_page</a> *og);
</b></pre>
</td>
</tr>
</table>
<h3>Parameters</h3>
<dl>
<dt><i>os</i></dt>
<dd>Pointer to a previously declared <a href="ogg_stream.html">ogg_stream</a> struct, which represents the current logical bitstream.</dd>
<dt><i>og</i></dt>
<dd>Pointer to a page of data. The data inside this page is being submitted to the streaming layer in order to be allocated into packets.
</dl>
<h3>Return Values</h3>
<blockquote>
<li>-1 indicates failure. This means that the serial number of the page did not match the serial number of the bitstream, the page version was incorrect, or an internal error accurred.</li>
<li>
0 means that the page was successfully submitted to the bitstream.</li>
</blockquote>
<p>
<br><br>
<hr noshade>
<table border=0 width=100%>
<tr valign=top>
<td><p class=tiny>copyright &copy; 2000-2010 Xiph.Org</p></td>
<td align=right><p class=tiny><a href="http://www.xiph.org/ogg/">Ogg Container Format</a></p></td>
</tr><tr>
<td><p class=tiny>libogg documentation</p></td>
<td align=right><p class=tiny>libogg release 1.2.0 - 20100325</p></td>
</tr>
</table>
</body>
</html>

84
ExternalLibs/libogg-1.2.0/doc/libogg/ogg_stream_pageout.html
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<html>
<head>
<title>libogg - function - ogg_stream_pageout</title>
<link rel=stylesheet href="style.css" type="text/css">
</head>
<body bgcolor=white text=black link="#5555ff" alink="#5555ff" vlink="#5555ff">
<table border=0 width=100%>
<tr>
<td><p class=tiny>libogg documentation</p></td>
<td align=right><p class=tiny>libogg release 1.2.0 - 20100325</p></td>
</tr>
</table>
<h1>ogg_stream_pageout</h1>
<p><i>declared in "ogg/ogg.h";</i></p>
<p>This function forms packets into pages.</p>
<p>In a typical encoding situation, this would be called after using <a
href="ogg_stream_packetin.html">ogg_stream_packetin()</a> to submit
data packets to the bitstream. Internally, this function assembles
the accumulated packet bodies into an Ogg page suitable for writing
to a stream. The function is typically called in a loop until there
are no more pages ready for output.</p>
<p>This function will only return a page when a "reasonable" amount of
packet data is available. Normally this is appropriate since it
limits the overhead of the Ogg page headers in the bitstream, and so
calling ogg_stream_pageout() after ogg_stream_packetin() should be the
common case. Call <a href="ogg_stream_flush.html">ogg_stream_flush()</a>
if immediate page generation is desired. This may be occasionally
necessary, for example, to limit the temporal latency of a variable
bitrate stream.</p>
<br><br>
<table border=0 color=black cellspacing=0 cellpadding=7>
<tr bgcolor=#cccccc>
<td>
<pre><b>
int ogg_stream_pageout(<a href="ogg_stream_state.html">ogg_stream_state</a> *os, <a href="ogg_page.html">ogg_page</a> *og);
</b></pre>
</td>
</tr>
</table>
<h3>Parameters</h3>
<dl>
<dt><i>os</i></dt>
<dd>Pointer to a previously declared <a href="ogg_stream.html">ogg_stream</a> struct, which represents the current logical bitstream.</dd>
<dt><i>og</i></dt>
<dd>Pointer to an <a href="ogg_page.html">ogg_page</a> structure to fill
in. Data pointed to is owned by libogg. The structure is valid until the
next call to ogg_stream_pageout(), ogg_stream_packetin(), or
ogg_stream_flush().</dd>
</dl>
<h3>Return Values</h3>
<blockquote>
<li>Zero means that insufficient data has accumulated to fill a page, or an internal error occurred. In
this case <i>og</i> is not modified.</li>
<li>Non-zero means that a page has been completed and returned.</li>
</blockquote>
<p>
<br><br>
<hr noshade>
<table border=0 width=100%>
<tr valign=top>
<td><p class=tiny>copyright &copy; 2000-2010 xiph.org</p></td>
<td align=right><p class=tiny><a href="http://www.xiph.org/ogg/">Ogg Container Format</a></p></td>
</tr><tr>
<td><p class=tiny>libogg documentation</p></td>
<td align=right><p class=tiny>libogg release 1.2.0 - 20100325</p></td>
</tr>
</table>
</body>
</html>

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<html>
<head>
<title>libogg - function - ogg_stream_reset</title>
<link rel=stylesheet href="style.css" type="text/css">
</head>
<body bgcolor=white text=black link="#5555ff" alink="#5555ff" vlink="#5555ff">
<table border=0 width=100%>
<tr>
<td><p class=tiny>libogg documentation</p></td>
<td align=right><p class=tiny>libogg release 1.2.0 - 20100325</p></td>
</tr>
</table>
<h1>ogg_stream_reset</h1>
<p><i>declared in "ogg/ogg.h";</i></p>
<p>This function sets values in the <a href="ogg_sync_state.html">ogg_stream_state</a> struct back to initial values.
<br><br>
<table border=0 color=black cellspacing=0 cellpadding=7>
<tr bgcolor=#cccccc>
<td>
<pre><b>
int ogg_stream_reset(ogg_stream_state *os);
</b></pre>
</td>
</tr>
</table>
<h3>Parameters</h3>
<dl>
<dt><i>os</i></dt>
<dd>Pointer to the ogg_stream_state struct to be cleared.</dd>
</dl>
<h3>Return Values</h3>
<blockquote>
<li>
0 indicates success. nonzero is returned on internal error.</li>
</blockquote>
<p>
<br><br>
<hr noshade>
<table border=0 width=100%>
<tr valign=top>
<td><p class=tiny>copyright &copy; 2000-2010 Xiph.Org</p></td>
<td align=right><p class=tiny><a href="http://www.xiph.org/ogg/">Ogg Container Format</a></p></td>
</tr><tr>
<td><p class=tiny>libogg documentation</p></td>
<td align=right><p class=tiny>libogg release 1.2.0 - 20100325</p></td>
</tr>
</table>
</body>
</html>

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<html>
<head>
<title>libogg - function - ogg_stream_reset_serialno</title>
<link rel=stylesheet href="style.css" type="text/css">
</head>
<body bgcolor=white text=black link="#5555ff" alink="#5555ff" vlink="#5555ff">
<table border=0 width=100%>
<tr>
<td><p class=tiny>libogg documentation</p></td>
<td align=right><p class=tiny>libogg release 1.2.0 - 20100325</p></td>
</tr>
</table>
<h1>ogg_stream_reset</h1>
<p><i>declared in "ogg/ogg.h";</i></p>
<p>This function reinitializes the values in the
<a href="ogg_stream_state.html">ogg_stream_state</a>,
just like <a href="ogg_stream_reset.html">ogg_stream_reset()</a>.
Additionally, it sets the stream serial number to the given value.</p>
<br><br>
<table border=0 color=black cellspacing=0 cellpadding=7>
<tr bgcolor=#cccccc>
<td>
<pre><b>
int ogg_stream_reset_serialno(ogg_stream_state *os, int serialno);
</b></pre>
</td>
</tr>
</table>
<h3>Parameters</h3>
<dl>
<dt><i>os</i></dt>
<dd>Pointer to the ogg_stream_state struct to be cleared.</dd>
<dt><i>serialno</i></dt>
<dd>New stream serial number to use</dd>
</dl>
<h3>Return Values</h3>
<blockquote>
<li>
0 indicates success. nonzero is returned on internal error.</li>
</blockquote>
<p>
<br><br>
<hr noshade>
<table border=0 width=100%>
<tr valign=top>
<td><p class=tiny>copyright &copy; 2000-2010 Xiph.Org Foundation</p></td>
<td align=right><p class=tiny><a href="http://www.xiph.org/ogg/">Ogg Container Format</a></p></td>
</tr><tr>
<td><p class=tiny>libogg documentation</p></td>
<td align=right><p class=tiny>libogg release 1.2.0 - 20100325</p></td>
</tr>
</table>
</body>
</html>

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<html>
<head>
<title>libogg - datatype - ogg_stream_state</title>
<link rel=stylesheet href="style.css" type="text/css">
</head>
<body bgcolor=white text=black link="#5555ff" alink="#5555ff" vlink="#5555ff">
<table border=0 width=100%>
<tr>
<td><p class=tiny>libogg documentation</p></td>
<td align=right><p class=tiny>libogg release 1.2.0 - 20100325</p></td>
</tr>
</table>
<h1>ogg_stream_state</h1>
<p><i>declared in "ogg/ogg.h"</i></p>
<p>
The ogg_stream_state struct tracks the current encode/decode state of the current logical bitstream.
<p>
<table border=0 width=100% color=black cellspacing=0 cellpadding=7>
<tr bgcolor=#cccccc>
<td>
<pre><b>
typedef struct {
unsigned char *body_data; /* bytes from packet bodies */
long body_storage; /* storage elements allocated */
long body_fill; /* elements stored; fill mark */
long body_returned; /* elements of fill returned */
int *lacing_vals; /* The values that will go to the segment table */
ogg_int64_t *granule_vals; /* granulepos values for headers. Not compact
this way, but it is simple coupled to the
lacing fifo */
long lacing_storage;
long lacing_fill;
long lacing_packet;
long lacing_returned;
unsigned char header[282]; /* working space for header encode */
int header_fill;
int e_o_s; /* set when we have buffered the last packet in the
logical bitstream */
int b_o_s; /* set after we've written the initial page
of a logical bitstream */
long serialno;
int pageno;
ogg_int64_t packetno; /* sequence number for decode; the framing
knows where there's a hole in the data,
but we need coupling so that the codec
(which is in a seperate abstraction
layer) also knows about the gap */
ogg_int64_t granulepos;
} ogg_stream_state;
</b></pre>
</td>
</tr>
</table>
<h3>Relevant Struct Members</h3>
<dl>
<dt><i>body_data</i></dt>
<dd>Pointer to data from packet bodies.</dd>
<dt><i>body_storage</i></dt>
<dd>Storage allocated for bodies in bytes (filled or unfilled).</dd>
<dt><i>body_fill</i></dt>
<dd>Amount of storage filled with stored packet bodies.</dd>
<dt><i>body_returned</i></dt>
<dd>Number of elements returned from storage.</dd>
<dt><i>lacing_vals</i></dt>
<dd>String of lacing values for the packet segments within the current page. Each value is a byte, indicating packet segment length.</dd>
<dt><i>granule_vals</i></dt>
<dd>Pointer to the lacing values for the packet segments within the current page.</dd>
<dt><i>lacing_storage</i></dt>
<dd>Total amount of storage (in bytes) allocated for storing lacing values.</dd>
<dt><i>lacing_fill</i></dt>
<dd>Fill marker for the current vs. total allocated storage of lacing values for the page.</dd>
<dt><i>lacing_packet</i></dt>
<dd>Lacing value for current packet segment.</dd>
<dt><i>lacing_returned</i></dt>
<dd>Number of lacing values returned from lacing_storage.</dd>
<dt><i>header</i></dt>
<dd>Temporary storage for page header during encode process, while the header is being created.</dd>
<dt><i>header_fill</i></dt>
<dd>Fill marker for header storage allocation. Used during the header creation process.</dd>
<dt><i>e_o_s</i></dt>
<dd>Marker set when the last packet of the logical bitstream has been buffered.</dd>
<dt><i>b_o_s</i></dt>
<dd>Marker set after we have written the first page in the logical bitstream.</dd>
<dt><i>serialno</i></dt>
<dd>Serial number of this logical bitstream.</dd>
<dt><i>pageno</i></dt>
<dd>Number of the current page within the stream.</dd>
<dt><i>packetno</i></dt>
<dd>Number of the current packet.</dd>
<dt><i>granulepos</i></dt>
<dd>Exact position of decoding/encoding process.</dd>
</dl>
<br><br>
<hr noshade>
<table border=0 width=100%>
<tr valign=top>
<td><p class=tiny>copyright &copy; 2000-2010 Xiph.Org</p></td>
<td align=right><p class=tiny><a href="http://www.xiph.org/ogg/">Ogg Container Format</a></p></td>
</tr><tr>
<td><p class=tiny>libogg documentation</p></td>
<td align=right><p class=tiny>libogg release 1.2.0 - 20100325</p></td>
</tr>
</table>
</body>
</html>

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<html>
<head>
<title>libogg - function - ogg_sync_buffer</title>
<link rel=stylesheet href="style.css" type="text/css">
</head>
<body bgcolor=white text=black link="#5555ff" alink="#5555ff" vlink="#5555ff">
<table border=0 width=100%>
<tr>
<td><p class=tiny>libogg documentation</p></td>
<td align=right><p class=tiny>libogg release 1.2.0 - 20100325</p></td>
</tr>
</table>
<h1>ogg_sync_buffer</h1>
<p><i>declared in "ogg/ogg.h";</i></p>
<p>This function is used to provide a properly-sized buffer for writing.
<p>Buffer space which has already been returned is cleared, and the buffer is extended as necessary by the size plus some additional bytes. Within the current implementation, an extra 4096 bytes are allocated, but applications should not rely on this additional buffer space.
<p>The buffer exposed by this function is empty internal storage from the <a href="ogg_sync_state.html">ogg_sync_state</a> struct, beginning at the fill mark within the struct.
<p>A pointer to this buffer is returned to be used by the calling application.
<br><br>
<table border=0 color=black cellspacing=0 cellpadding=7>
<tr bgcolor=#cccccc>
<td>
<pre><b>
char *ogg_sync_buffer(ogg_sync_state *oy, long size);
</b></pre>
</td>
</tr>
</table>
<h3>Parameters</h3>
<dl>
<dt><i>oy</i></dt>
<dd>Pointer to a previously declared <a href="ogg_sync_state.html">ogg_sync_state</a> struct.</dd>
<dt><i>size</i></dt>
<dd>Size of the desired buffer. The actual size of the buffer returned will be this size plus some extra bytes (currently 4096).
</dl>
<h3>Return Values</h3>
<blockquote>
<li>
Returns a pointer to the newly allocated buffer or NULL on error</li>
</blockquote>
<p>
<br><br>
<hr noshade>
<table border=0 width=100%>
<tr valign=top>
<td><p class=tiny>copyright &copy; 2000-2010 Xiph.Org</p></td>
<td align=right><p class=tiny><a href="http://www.xiph.org/ogg/">Ogg Container Format</a></p></td>
</tr><tr>
<td><p class=tiny>libogg documentation</p></td>
<td align=right><p class=tiny>libogg release 1.2.0 - 20100325</p></td>
</tr>
</table>
</body>
</html>

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<html>
<head>
<title>libogg - function - ogg_sync_clear</title>
<link rel=stylesheet href="style.css" type="text/css">
</head>
<body bgcolor=white text=black link="#5555ff" alink="#5555ff" vlink="#5555ff">
<table border=0 width=100%>
<tr>
<td><p class=tiny>libogg documentation</p></td>
<td align=right><p class=tiny>libogg release 1.2.0 - 20100325</p></td>
</tr>
</table>
<h1>ogg_sync_clear</h1>
<p><i>declared in "ogg/ogg.h";</i></p>
<p>This function is used to free the internal storage of an <a href="ogg_sync_state.html">ogg_sync_state</a> struct and resets the struct to the initial state. To free the entire struct, <a href="ogg_sync_destroy.html">ogg_sync_destroy</a> should be used instead. In situations where the struct needs to be reset but the internal storage does not need to be freed, <a href="ogg_sync_reset.html">ogg_sync_reset</a> should be used.
<br><br>
<table border=0 color=black cellspacing=0 cellpadding=7>
<tr bgcolor=#cccccc>
<td>
<pre><b>
int ogg_sync_clear(<a href="ogg_sync_state.html">ogg_sync_state</a> *oy);
</b></pre>
</td>
</tr>
</table>
<h3>Parameters</h3>
<dl>
<dt><i>oy</i></dt>
<dd>Pointer to a previously declared <a href="ogg_sync_state.html">ogg_sync_state</a> struct.</dd>
</dl>
<h3>Return Values</h3>
<blockquote>
<li>
0 is always returned.</li>
</blockquote>
<p>
<br><br>
<hr noshade>
<table border=0 width=100%>
<tr valign=top>
<td><p class=tiny>copyright &copy; 2000-2010 Xiph.Org</p></td>
<td align=right><p class=tiny><a href="http://www.xiph.org/ogg/">Ogg Container Format</a></p></td>
</tr><tr>
<td><p class=tiny>libogg documentation</p></td>
<td align=right><p class=tiny>libogg release 1.2.0 - 20100325</p></td>
</tr>
</table>
</body>
</html>

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<html>
<head>
<title>libogg - function - ogg_sync_destroy</title>
<link rel=stylesheet href="style.css" type="text/css">
</head>
<body bgcolor=white text=black link="#5555ff" alink="#5555ff" vlink="#5555ff">
<table border=0 width=100%>
<tr>
<td><p class=tiny>libogg documentation</p></td>
<td align=right><p class=tiny>libogg release 1.2.0 - 20100325</p></td>
</tr>
</table>
<h1>ogg_sync_destroy</h1>
<p><i>declared in "ogg/ogg.h";</i></p>
<p>This function is used to destroy an <a href="ogg_sync_state.html">ogg_sync_state</a> struct and free all memory used.</p>
<p>Note this calls free() on its argument so you should only use this
function if you've allocated the ogg_sync_state on the heap. If it is
allocated on the stack, or it will otherwise be freed by your
own code, use <a href="ogg_sync_clear.html">ogg_sync_clear</a> instead
to release just the internal memory.</p>
<br><br>
<table border=0 color=black cellspacing=0 cellpadding=7>
<tr bgcolor=#cccccc>
<td>
<pre><b>
int ogg_sync_destroy(<a href="ogg_sync_state.html">ogg_sync_state</a> *oy);
</b></pre>
</td>
</tr>
</table>
<h3>Parameters</h3>
<dl>
<dt><i>oy</i></dt>
<dd>Pointer to a previously declared <a href="ogg_sync_state.html">ogg_sync_state</a> struct.</dd>
</dl>
<h3>Return Values</h3>
<blockquote>
<li>
0 is always returned.</li>
</blockquote>
<p>
<br><br>
<hr noshade>
<table border=0 width=100%>
<tr valign=top>
<td><p class=tiny>copyright &copy; 2000-2010 Xiph.Org</p></td>
<td align=right><p class=tiny><a href="http://www.xiph.org/ogg/">Ogg Container Format</a></p></td>
</tr><tr>
<td><p class=tiny>libogg documentation</p></td>
<td align=right><p class=tiny>libogg release 1.2.0 - 20100325</p></td>
</tr>
</table>
</body>
</html>

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<html>
<head>
<title>libogg - function - ogg_sync_init</title>
<link rel=stylesheet href="style.css" type="text/css">
</head>
<body bgcolor=white text=black link="#5555ff" alink="#5555ff" vlink="#5555ff">
<table border=0 width=100%>
<tr>
<td><p class=tiny>libogg documentation</p></td>
<td align=right><p class=tiny>libogg release 1.2.0 - 20100325</p></td>
</tr>
</table>
<h1>ogg_sync_init</h1>
<p><i>declared in "ogg/ogg.h";</i></p>
<p>This function is used to initialize an <a href="ogg_sync_state.html">ogg_sync_state</a> struct to a known initial value in preparation for manipulation of an Ogg bitstream.
<p>The ogg_sync struct is important when decoding, as it synchronizes retrieval and return of data.
<br><br>
<table border=0 color=black cellspacing=0 cellpadding=7>
<tr bgcolor=#cccccc>
<td>
<pre><b>
int ogg_sync_init(<a href="ogg_sync_state.html">ogg_sync_state</a> *oy);
</b></pre>
</td>
</tr>
</table>
<h3>Parameters</h3>
<dl>
<dt><i>oy</i></dt>
<dd>Pointer to a previously declared <a href="ogg_sync_state.html">ogg_sync_state</a> struct. After this function call, this struct has been initialized.</dd>
</dl>
<h3>Return Values</h3>
<blockquote>
<li>
0 is always returned.</li>
</blockquote>
<p>
<br><br>
<hr noshade>
<table border=0 width=100%>
<tr valign=top>
<td><p class=tiny>copyright &copy; 2000-2010 Xiph.Org</p></td>
<td align=right><p class=tiny><a href="http://www.xiph.org/ogg/">Ogg Container Format</a></p></td>
</tr><tr>
<td><p class=tiny>libogg documentation</p></td>
<td align=right><p class=tiny>libogg release 1.2.0 - 20100325</p></td>
</tr>
</table>
</body>
</html>

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<html>
<head>
<title>libogg - function - ogg_sync_pageout</title>
<link rel=stylesheet href="style.css" type="text/css">
</head>
<body bgcolor=white text=black link="#5555ff" alink="#5555ff" vlink="#5555ff">
<table border=0 width=100%>
<tr>
<td><p class=tiny>libogg documentation</p></td>
<td align=right><p class=tiny>libogg release 1.2.0 - 20100325</p></td>
</tr>
</table>
<h1>ogg_sync_pageout</h1>
<p><i>declared in "ogg/ogg.h";</i></p>
<p>This function takes the data stored in the buffer of the <a href="ogg_sync_state.html">ogg_sync_state</a> struct and inserts them into an <a href="ogg_page.html">ogg_page</a>.
<p>In an actual decoding loop, this function should be called first to ensure that the buffer is cleared. The example code below illustrates a clean reading loop which will fill and output pages.
<p><b>Caution:</b>This function should be called before reading into the buffer to ensure that data does not remain in the ogg_sync_state struct. Failing to do so may result in a memory leak. See the example code below for details.
<br><br>
<table border=0 color=black cellspacing=0 cellpadding=7>
<tr bgcolor=#cccccc>
<td>
<pre><b>
int ogg_sync_pageout(<a href="ogg_sync_state.html">ogg_sync_state</a> *oy, <a href="ogg_page.html">ogg_page</a> *og);
</b></pre>
</td>
</tr>
</table>
<h3>Parameters</h3>
<dl>
<dt><i>oy</i></dt>
<dd>Pointer to a previously declared <a href="ogg_sync_state.html">ogg_sync_state</a> struct. Normally, the internal storage of this struct should be filled with newly read data and verified using <a href="ogg_sync_wrote.html">ogg_sync_wrote</a>.</dd>
<dt><i>og</i></dt>
<dd>Pointer to page struct filled by this function.
</dl>
<h3>Return Values</h3>
<blockquote>
<li>-1 returned if stream has not yet captured sync (bytes were skipped).</li>
<li>0 returned if more data needed or an internal error occurred.</li>
<li>1 indicated a page was synced and returned.</li>
</blockquote>
<p>
<h3>Example Usage</h3>
<pre>
if (ogg_sync_pageout(&oy, &og) != 1) {
buffer = ogg_sync_buffer(&oy, 8192);
bytes = fread(buffer, 1, 8192, stdin);
ogg_sync_wrote(&oy, bytes);
}
</pre>
<br><br>
<hr noshade>
<table border=0 width=100%>
<tr valign=top>
<td><p class=tiny>copyright &copy; 2000-2010 Xiph.Org</p></td>
<td align=right><p class=tiny><a href="http://www.xiph.org/ogg/">Ogg Container Format</a></p></td>
</tr><tr>
<td><p class=tiny>libogg documentation</p></td>
<td align=right><p class=tiny>libogg release 1.2.0 - 20100325</p></td>
</tr>
</table>
</body>
</html>

68
ExternalLibs/libogg-1.2.0/doc/libogg/ogg_sync_pageseek.html
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<html>
<head>
<title>libogg - function - ogg_sync_pageseek</title>
<link rel=stylesheet href="style.css" type="text/css">
</head>
<body bgcolor=white text=black link="#5555ff" alink="#5555ff" vlink="#5555ff">
<table border=0 width=100%>
<tr>
<td><p class=tiny>libogg documentation</p></td>
<td align=right><p class=tiny>libogg release 1.2.0 - 20100325</p></td>
</tr>
</table>
<h1>ogg_sync_pageseek</h1>
<p><i>declared in "ogg/ogg.h";</i></p>
<p>This function synchronizes the ogg_sync_state struct to the next ogg_page.
<p>This is useful when seeking within a bitstream. ogg_sync_pageseek will synchronize to the next page in the bitstream and return information about how many bytes we advanced or skipped in order to do so.
<br><br>
<table border=0 color=black cellspacing=0 cellpadding=7>
<tr bgcolor=#cccccc>
<td>
<pre><b>
int ogg_sync_pageseek(<a href="ogg_sync_state.html">ogg_sync_state</a> *oy, <a href="ogg_page.html">ogg_page</a> *og);
</b></pre>
</td>
</tr>
</table>
<h3>Parameters</h3>
<dl>
<dt><i>oy</i></dt>
<dd>Pointer to a previously declared <a href="ogg_sync_state.html">ogg_sync_state</a> struct.</dd>
<dt><i>og</i></dt>
<dd>Pointer to a page (or an incomplete page) of data. This is the page we are attempting to sync.
</dl>
<h3>Return Values</h3>
<blockquote>
<li>-n means that we skipped n bytes within the bitstream.</li>
<li>
0 means that the page isn't ready and we need more data, or than an internal error occurred. No bytes have been skipped.</li>
<li>
n means that the page was synced at the current location, with a page length of n bytes.
</blockquote>
<p>
<br><br>
<hr noshade>
<table border=0 width=100%>
<tr valign=top>
<td><p class=tiny>copyright &copy; 2000-2010 Xiph.Org</p></td>
<td align=right><p class=tiny><a href="http://www.xiph.org/ogg/">Ogg Container Format</a></p></td>
</tr><tr>
<td><p class=tiny>libogg documentation</p></td>
<td align=right><p class=tiny>libogg release 1.2.0 - 20100325</p></td>
</tr>
</table>
</body>
</html>

63
ExternalLibs/libogg-1.2.0/doc/libogg/ogg_sync_reset.html
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<html>
<head>
<title>libogg - function - ogg_sync_reset</title>
<link rel=stylesheet href="style.css" type="text/css">
</head>
<body bgcolor=white text=black link="#5555ff" alink="#5555ff" vlink="#5555ff">
<table border=0 width=100%>
<tr>
<td><p class=tiny>libogg documentation</p></td>
<td align=right><p class=tiny>libogg release 1.2.0 - 20100325</p></td>
</tr>
</table>
<h1>ogg_sync_reset</h1>
<p><i>declared in "ogg/ogg.h";</i></p>
<p>This function is used to reset the internal counters of the <a href="ogg_sync_state.html">ogg_sync_state</a> struct to initial values.
<p>It is a good idea to call this before seeking within a bitstream.
<br><br>
<table border=0 color=black cellspacing=0 cellpadding=7>
<tr bgcolor=#cccccc>
<td>
<pre><b>
int ogg_sync_reset(<a href="ogg_sync_state.html">ogg_sync_state</a> *oy);
</b></pre>
</td>
</tr>
</table>
<h3>Parameters</h3>
<dl>
<dt><i>oy</i></dt>
<dd>Pointer to a previously declared <a href="ogg_sync_state.html">ogg_sync_state</a> struct.</dd>
</dl>
<h3>Return Values</h3>
<blockquote>
<li>
0 is always returned.</li>
</blockquote>
<p>
<br><br>
<hr noshade>
<table border=0 width=100%>
<tr valign=top>
<td><p class=tiny>copyright &copy; 2000-2010 Xiph.Org</p></td>
<td align=right><p class=tiny><a href="http://www.xiph.org/ogg/">Ogg Container Format</a></p></td>
</tr><tr>
<td><p class=tiny>libogg documentation</p></td>
<td align=right><p class=tiny>libogg release 1.2.0 - 20100325</p></td>
</tr>
</table>
</body>
</html>

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<html>
<head>
<title>libogg - datatype - ogg_sync_state</title>
<link rel=stylesheet href="style.css" type="text/css">
</head>
<body bgcolor=white text=black link="#5555ff" alink="#5555ff" vlink="#5555ff">
<table border=0 width=100%>
<tr>
<td><p class=tiny>libogg documentation</p></td>
<td align=right><p class=tiny>libogg release 1.2.0 - 20100325</p></td>
</tr>
</table>
<h1>ogg_sync_state</h1>
<p><i>declared in "ogg/ogg.h"</i></p>
<p>
The ogg_sync_state struct tracks the synchronization of the current page.
<p>It is used during decoding to track the status of data as it is read in, synchronized, verified, and parsed into pages belonging to the various logical bistreams in the current physical bitstream link.
<p>
<table border=0 width=100% color=black cellspacing=0 cellpadding=7>
<tr bgcolor=#cccccc>
<td>
<pre><b>
typedef struct {
unsigned char *data;
int storage;
int fill;
int returned;
int unsynced;
int headerbytes;
int bodybytes;
} ogg_sync_state;
</b></pre>
</td>
</tr>
</table>
<h3>Relevant Struct Members</h3>
<dl>
<dt><i>data</i></dt>
<dd>Pointer to buffered stream data.</dd>
<dt><i>storage</i></dt>
<dd>Current allocated size of the stream buffer held in <tt>*data</tt>.</dd>
<dt><i>fill</i></dt>
<dd>The number of valid bytes currently held in <tt>*data</tt>; functions as the buffer head pointer.</dd>
<dt><i>returned</i></dt>
<dd>The number of bytes at the head of <tt>*data</tt> that have already been returned as pages; functions as the buffer tail pointer.</dd>
<dt><i>unsynced</i></dt>
<dd>Synchronization state flag; nonzero if sync has not yet been attained or has been lost.</dd>
<dt><i>headerbytes</i></dt>
<dd>If synced, the number of bytes used by the synced page's header.</dd>
<dt><i>bodybytes</i></dt>
<dd>If synced, the number of bytes used by the synced page's body.</dd>
</dl>
<br><br>
<hr noshade>
<table border=0 width=100%>
<tr valign=top>
<td><p class=tiny>copyright &copy; 2000-2010 Xiph.Org</p></td>
<td align=right><p class=tiny><a href="http://www.xiph.org/ogg/">Ogg Container Format</a></p></td>
</tr><tr>
<td><p class=tiny>libogg documentation</p></td>
<td align=right><p class=tiny>libogg release 1.2.0 - 20100325</p></td>
</tr>
</table>
</body>
</html>

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<html>
<head>
<title>libogg - function - ogg_sync_wrote</title>
<link rel=stylesheet href="style.css" type="text/css">
</head>
<body bgcolor=white text=black link="#5555ff" alink="#5555ff" vlink="#5555ff">
<table border=0 width=100%>
<tr>
<td><p class=tiny>libogg documentation</p></td>
<td align=right><p class=tiny>libogg release 1.2.0 - 20100325</p></td>
</tr>
</table>
<h1>ogg_sync_wrote</h1>
<p><i>declared in "ogg/ogg.h";</i></p>
<p>This function is used to tell the <a href="ogg_sync_state.html">ogg_sync_state</a> struct how many bytes we wrote into the buffer.
<p>
The general proceedure is to request a pointer into an internal
<a href="ogg_sync_state.html">ogg_sync_state</a> buffer by calling
<a href="ogg_sync_buffer.html">ogg_sync_buffer()</a>. The buffer
is then filled up to the requested size with new input, and
ogg_sync_wrote() is called to advance the fill pointer by however
much data was actually available.</p>
<br>
<table border=0 color=black cellspacing=0 cellpadding=7>
<tr bgcolor=#cccccc>
<td>
<pre><b>
int ogg_sync_wrote(<a href="ogg_sync_state.html">ogg_sync_state</a> *oy, long bytes);
</b></pre>
</td>
</tr>
</table>
<h3>Parameters</h3>
<dl>
<dt><i>oy</i></dt>
<dd>Pointer to a previously declared <a href="ogg_sync_state.html">ogg_sync_state</a> struct.</dd>
<dt><i>bytes</i></dt>
<dd>Number of bytes of new data written.</dd>
</dl>
<h3>Return Values</h3>
<blockquote>
<li>-1 if the number of bytes written overflows the internal storage of the <a href="ogg_sync_state.html">ogg_sync_state</a> struct or an internal error occurred.
<li>
0 in all other cases.</li>
</blockquote>
<br><br>
<hr noshade>
<table border=0 width=100%>
<tr valign=top>
<td><p class=tiny>copyright &copy; 2000-2010 Xiph.Org</p></td>
<td align=right><p class=tiny><a href="http://www.xiph.org/ogg/">Ogg Container Format</a></p></td>
</tr><tr>
<td><p class=tiny>libogg documentation</p></td>
<td align=right><p class=tiny>libogg release 1.2.0 - 20100325</p></td>
</tr>
</table>
</body>
</html>

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