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Aquaria/BBGE/Base.cpp

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/*
Copyright (C) 2007, 2010 - Bit-Blot
This file is part of Aquaria.
Aquaria 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
of the License, 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "Base.h"
#include "Core.h"
#include <algorithm>
#ifdef BBGE_BUILD_WINDOWS
#include <shellapi.h>
#endif
#ifdef _MSC_VER
# include <intrin.h>
#endif
#if defined(BBGE_BUILD_UNIX)
#include <sys/types.h>
#include <dirent.h>
#include <sys/stat.h>
#include <errno.h>
#endif
#if defined(BBGE_BUILD_MACOSX)
#include <Carbon/Carbon.h>
#endif
#include <assert.h>
#ifdef BBGE_BUILD_VFS
ttvfs::Root vfs; // extern
#endif
Vector getDirVector(Direction dir)
{
switch(dir)
{
case DIR_DOWN:
return Vector(0, 1);
break;
case DIR_UP:
return Vector(0, -1);
break;
case DIR_LEFT:
return Vector(-1, 0);
break;
case DIR_RIGHT:
return Vector(1, 0);
break;
}
return Vector(0,0);
}
Direction getOppositeDir(Direction dir)
{
switch(dir)
{
case DIR_DOWN:
return DIR_UP;
break;
case DIR_UP:
return DIR_DOWN;
break;
case DIR_LEFT:
return DIR_RIGHT;
break;
case DIR_RIGHT:
return DIR_LEFT;
break;
}
return DIR_NONE;
}
Direction getNextDirClockwise(Direction dir)
{
switch(dir)
{
case DIR_DOWN:
return DIR_LEFT;
break;
case DIR_UP:
return DIR_RIGHT;
break;
case DIR_LEFT:
return DIR_UP;
break;
case DIR_RIGHT:
return DIR_DOWN;
break;
}
return DIR_NONE;
}
void sizePowerOf2Texture(int &v)
{
int p = 8, use=0;
do
{
use = 1 << p;
p++;
}
while(v > use);
v = use;
}
int randAngle360()
{
return rand()%360;
}
int randRange(int n1, int n2)
{
int r = rand()%(n2-1);
r += n1;
return r;
}
std::string removeSpaces(const std::string &input)
{
std::string result;
for (int i = 0; i < input.size(); i++)
{
if (input[i] != ' ')
{
result.push_back(input[i]);
}
}
return result;
}
unsigned hash(const std::string &string)
{
unsigned hash = 5381;
for (int i = 0; i < string.size(); i++)
hash = ((hash << 5) + hash) + (unsigned char)string[i];
return hash;
}
/* hash * 33 + c */
static unsigned char lowerToUpperTable[256];
static unsigned char upperToLowerTable[256];
void initCharTranslationTables(const std::map<unsigned char, unsigned char>& tab)
{
for (unsigned int i = 0; i < 256; ++i)
{
lowerToUpperTable[i] = i;
upperToLowerTable[i] = i;
}
for (unsigned char i = 'a'; i <= 'z'; ++i)
{
lowerToUpperTable[i] = i - 'a' + 'A';
upperToLowerTable[i - 'a' + 'A'] = i;
}
for (std::map<unsigned char, unsigned char>::const_iterator it = tab.begin(); it != tab.end(); ++it)
{
lowerToUpperTable[it->first] = it->second;
upperToLowerTable[it->second] = it->first;
}
}
struct TransatableStaticInit
{
TransatableStaticInit()
{
std::map<unsigned char, unsigned char> dummy;
initCharTranslationTables(dummy);
}
};
static TransatableStaticInit _transtable_static_init;
static unsigned char charIsUpper(unsigned char c)
{
return c == upperToLowerTable[c];
}
static unsigned char charIsLower(unsigned char c)
{
return c == lowerToUpperTable[c];
}
static unsigned char charToLower(unsigned char c)
{
return upperToLowerTable[c];
}
static unsigned char charToUpper(unsigned char c)
{
return lowerToUpperTable[c];
}
std::string splitCamelCase(const std::string &input)
{
std::string result;
int last = 0;
for (int i = 0; i < input.size(); i++)
{
if (last == 1)
{
if (charIsUpper(input[i]))
{
result += ' ';
}
}
result += input[i];
if (charIsUpper(input[i]))
{
last = 2;
}
else
last = 1;
}
return result;
}
std::string numToZeroString(int num, int zeroes)
{
std::ostringstream num_os;
num_os << num;
std::ostringstream os;
if (num_os.str().size() <= zeroes)
{
for (int j = 0; j < zeroes - num_os.str().size(); j++)
{
os << "0";
}
os << num;
}
return os.str();
}
bool isVectorInRect(const Vector &vec, const Vector &coord1, const Vector &coord2)
{
return (vec.x > coord1.x && vec.x < coord2.x && vec.y > coord1.y && vec.y < coord2.y);
}
void stringToUpper(std::string &s)
{
for (int i = 0; i < s.size(); i++)
s[i] = charToUpper(s[i]);
}
void stringToLower(std::string &s)
{
for (int i = 0; i < s.size(); i++)
s[i] = charToLower(s[i]);
}
void stringToLowerUserData(std::string &s)
{
// don't lowercase the userdata path.
const std::string userdata = core->getUserDataFolder();
const size_t len = userdata.length();
const bool match = (s.length() > len) &&
((s[len] == '/') || (s[len] == '\\')) &&
!strncmp(userdata.c_str(), s.c_str(), len);
if (!match)
stringToLower(s);
else
{
s = s.substr(len);
stringToLower(s);
s = userdata + s;
}
}
#ifndef HAVE_STRCASECMP
int nocasecmp(const std::string &s1, const std::string &s2)
{
const char *it1 = s1.c_str();
const char *it2 = s2.c_str();
//stop when either string's end has been reached
while ( *it1 && *it2 )
{
if(charToUpper(*it1) != charToUpper(*it2)) //letters differ?
// return -1 to indicate smaller than, 1 otherwise
return (charToUpper(*it1) < charToUpper(*it2)) ? -1 : 1;
//proceed to the next character in each string
++it1;
++it2;
}
size_t size1=s1.size(), size2=s2.size();// cache lengths
//return -1,0 or 1 according to strings' lengths
if (size1==size2)
return 0;
return (size1<size2) ? -1 : 1;
}
#endif // #if !HAVE_STRCASECMP
bool exists(const std::string &f, bool makeFatal, bool skipVFS)
{
bool e = false;
#ifdef BBGE_BUILD_VFS
if (!skipVFS)
{
e = !!vfs.GetFile(f.c_str());
}
else
#endif
if (!e)
{
std::string tmp = core->adjustFilenameCase(f);
FILE *file = fopen(tmp.c_str(), "rb");
if (file)
{
e = true;
fclose(file);
}
}
if (makeFatal && !e)
{
exit_error("Could not open [" + f + "]");
}
return e;
}
void drawCircle(float radius, int stepSize)
{
#ifdef BBGE_BUILD_OPENGL
//glDisable(GL_CULL_FACE);
glBegin(GL_POLYGON);
{
for(int i=0;i < 360; i+=stepSize) {
const float degInRad = i*PI/180.0f;
glVertex3f(cosf(degInRad)*radius, sinf(degInRad)*radius,0.0);
}
}
glEnd();
//glEnable(GL_CULL_FACE);
#endif
}
void exit_error(const std::string &message)
{
errorLog(message);
exit(1);
}
std::string parseCommand(const std::string &line, const std::string &command)
{
int stringPos = line.find(command);
if (stringPos != std::string::npos)
{
return line.substr((command.length()), line.length());
}
return "";
}
void glColor3_256(int r, int g, int b)
{
#ifdef BBGE_BUILD_OPENGL
glColor4f(float(r)/256.0f, float(g)/256.0f, float(b)/256.0f, 1.0f);
#endif
}
bool chance(int perc)
{
if (perc == 100) return true;
if (perc == 0) return false;
return ((rand()%100) <= perc);
}
bool chancef(float p)
{
if (p >= 1) return true;
if (p <= 0) return false;
return ((rand()%100) <= p*100);
}
/*
PHYSFS_file *openRead(const std::string &f)
{
PHYSFS_file *file = PHYSFS_openRead(f.c_str());
if (!file)
{
errorLog ("Could not open [" + f + "]");
exit(0);
}
return file;
}
void pfread(void *buffer, PHYSFS_uint32 size, PHYSFS_uint32 objs, PHYSFS_file *handle)
{
PHYSFS_read(handle, buffer, size, objs);
}
void pfseek(PHYSFS_file *handle,PHYSFS_uint64 byte,int origin)
{
if (origin == SEEK_CUR)
{
byte += PHYSFS_tell(handle);
}
PHYSFS_seek(handle,byte);
}
void pfclose(PHYSFS_file *handle)
{
PHYSFS_close(handle);
}
std::string pLoadStream(const std::string &filename)
{
PHYSFS_file *f = openRead(filename.c_str());
int len = PHYSFS_fileLength(f);
std::string s;
for (int i = 0; i < len; i++)
{
char p;
PHYSFS_read(f, &p, sizeof(char), 1);
s += p;
}
//std::istringstream is(s);
PHYSFS_close(f);
return s;
}
void pSaveStream(const std::string &filename, std::ostringstream &os)
{
PHYSFS_file *f = PHYSFS_openWrite(filename.c_str());
//int size = os.str().size();
//PHYSFS_write(f, (void*)size, sizeof(int), 1);
PHYSFS_write(f, (void*)os.str().c_str(), sizeof(char)*os.str().size(), 1);
PHYSFS_close(f);
}
*/
void errorLog(const std::string &s)
{
if (core)
{
core->errorLog(s);
}
else
{
messageBox("Error!", s);
}
}
void debugLog(const std::string &s)
{
if (core)
core->debugLog(s);
else
{
//MessageBox(0, s.c_str(), "DebugLog (Core Not Initalized)", MB_OK);
}
}
// Read the given file into memory and return a pointer to the allocated
// buffer. The buffer will be null-terminated, like a C string; you can
// also obtain the data length by passing a pointer to an unsigned long
// as the (optional) second parameter. The buffer should be freed with
// delete[] when no longer needed.
char *readFile(const std::string& path, unsigned long *size_ret)
{
VFILE *f = vfopen(path.c_str(), "rb");
if (!f)
return NULL;
size_t fileSize = 0;
if(vfsize(f, &fileSize) < 0)
{
debugLog(path + ": Failed to get file size");
vfclose(f);
return NULL;
}
char *buffer = new char[fileSize + 1];
if (!buffer)
{
std::ostringstream os;
os << path << ": Not enough memory for file ("
<< (fileSize+1) << " bytes)";
debugLog(os.str());
vfclose(f);
return NULL;
}
long bytesRead = vfread(buffer, 1, fileSize, f);
if (bytesRead != fileSize)
{
std::ostringstream os;
os << path << ": Failed to read file (only got "
<< bytesRead << " of " << fileSize << " bytes)";
debugLog(os.str());
vfclose(f);
return NULL;
}
vfclose(f);
buffer[fileSize] = 0;
if (size_ret)
*size_ret = fileSize;
return buffer;
}
/*
void pForEachFile(std::string path, std::string type, void callback(const std::string &filename, int param), int param)
{
char **rc = PHYSFS_enumerateFiles(path.c_str());
char **i;
for (i = rc; *i != NULL; i++)
{
std::string s(*i);
int p=0;
if ((p=s.find('.'))!=std::string::npos)
{
std::string ext = s.susbtr(p, s.getLength2D());
if (ext == type)
{
callback(fielnameafhghaha
}
}
}
PHYSFS_freeList(rc);
}
*/
void doSingleFile(const std::string &path, const std::string &type, std::string filename, void callback(const std::string &filename, int param), int param)
{
if (filename.size()>4)
{
std::string search = filename;
stringToLower(search);
std::string filetype = filename.substr(search.size()-4, search.size());
//stringToUpper(filetype);
//debugLog("comparing: " + filetype + " and: " + type);
//if (filetype==type)
debugLog("checking:" + search + " for type:" + type);
if (search.find(type)!=std::string::npos)
{
debugLog("callback");
callback(path+filename, param);
}
else
{
debugLog("not the same");
}
}
}
std::string stripEndlineForUnix(const std::string &in)
{
std::string out;
for (int i = 0; i < in.size(); i++)
{
if (int(in[i]) != 13)
{
out+= in[i];
}
}
return out;
}
#ifdef BBGE_BUILD_VFS
struct vfscallback_s
{
std::string *path;
const char *ext;
intptr_t param;
void (*callback)(const std::string &filename, intptr_t param);
};
void forEachFile_vfscallback(VFILE *vf, void *user)
{
vfscallback_s *d = (vfscallback_s*)user;
if(d->ext)
{
const char *e = strrchr(vf->name(), '.');
if(e && nocasecmp(d->ext, e))
return;
}
d->callback(*(d->path) + vf->name(), d->param);
}
#endif
void forEachFile(std::string path, std::string type, void callback(const std::string &filename, intptr_t param), intptr_t param)
{
if (path.empty()) return;
#ifdef BBGE_BUILD_VFS
ttvfs::DirView view;
if(!vfs.FillDirView(path.c_str(), view))
{
debugLog("Path '" + path + "' does not exist");
return;
}
vfscallback_s dat;
dat.path = &path;
dat.ext = type.length() ? type.c_str() : NULL;
dat.param = param;
dat.callback = callback;
view.forEachFile(forEachFile_vfscallback, &dat, true);
return;
// -------------------------------------
#endif
stringToLower(type);
path = core->adjustFilenameCase(path);
debugLog("forEachFile - path: " + path + " type: " + type);
#if defined(BBGE_BUILD_UNIX)
DIR *dir=0;
dir = opendir(path.c_str());
if (dir)
{
dirent *file=0;
while ( (file=readdir(dir)) != NULL )
{
if (file->d_name && strlen(file->d_name) > 4)
{
debugLog(file->d_name);
char *extension=strrchr(file->d_name,'.');
if (extension)
{
debugLog(extension);
if (extension!=NULL)
{
if (strcasecmp(extension,type.c_str())==0)
{
callback(path + std::string(file->d_name), param);
}
}
}
}
}
closedir(dir);
}
else
{
debugLog("FAILED TO OPEN DIR");
}
#endif
#ifdef BBGE_BUILD_WINDOWS
BOOL fFinished;
HANDLE hList;
TCHAR szDir[MAX_PATH+1];
WIN32_FIND_DATA FileData;
int end = path.size()-1;
if (path[end] != '/')
path[end] += '/';
// Get the proper directory path
// \\ %s\\*
if (type.find('.')==std::string::npos)
{
type = "." + type;
}
//std::string add = "%s*" + type;
//sprintf(szDir, "%s*", path.c_str());
sprintf(szDir, "%s\\*", path.c_str());
stringToUpper(type);
// Get the first file
hList = FindFirstFile(szDir, &FileData);
if (hList == INVALID_HANDLE_VALUE)
{
//printf("No files found\n\n");
debugLog("No files of type " + type + " found in path " + path);
}
else
{
// Traverse through the directory structure
fFinished = FALSE;
while (!fFinished)
{
// Check the object is a directory or not
//printf("%*s%s\n", indent, "", FileData.cFileName);
std::string filename = FileData.cFileName;
//debugLog("found: " + filename);
if (filename.size()>4)
{
std::string filetype = filename.substr(filename.size()-4, filename.size());
stringToUpper(filetype);
//debugLog("comparing: " + filetype + " and: " + type);
if (filetype==type)
{
callback(path+filename, param);
}
}
if (!FindNextFile(hList, &FileData))
{
/*
if (GetLastError() == ERROR_NO_MORE_FILES)
{
fFinished = TRUE;
}
*/
fFinished = TRUE;
}
}
}
FindClose(hList);
#endif
}
std::vector<std::string> getFileList(std::string path, std::string type, int param)
{
std::vector<std::string> list;
#ifdef BBGE_BUILD_WINDOWS
BOOL fFinished;
HANDLE hList;
TCHAR szDir[MAX_PATH+1];
WIN32_FIND_DATA FileData;
// Get the proper directory path
sprintf(szDir, "%s\\*", path.c_str());
// Get the first file
hList = FindFirstFile(szDir, &FileData);
if (hList == INVALID_HANDLE_VALUE)
{
printf("No files found\n\n");
}
else
{
// Traverse through the directory structure
fFinished = FALSE;
while (!fFinished)
{
// Check the object is a directory or not
//printf("%*s%s\n", indent, "", FileData.cFileName);
std::string filename = FileData.cFileName;
if (filename.size()>4 && filename.substr(filename.size()-4, filename.size())==type)
{
//callback(path+filename, param);
list.push_back (filename);
}
if (!FindNextFile(hList, &FileData))
{
/*
if (GetLastError() == ERROR_NO_MORE_FILES)
{
fFinished = TRUE;
}
*/
fFinished = TRUE;
}
}
}
FindClose(hList);
#endif
return list;
}
#if defined(BBGE_BUILD_MACOSX) && !SDL_VERSION_ATLEAST(2,0,0)
void cocoaMessageBox(const std::string &title, const std::string &msg);
#endif
void messageBox(const std::string& title, const std::string &msg)
{
#ifdef BBGE_BUILD_WINDOWS
MessageBox (0,msg.c_str(),title.c_str(),MB_OK);
#elif SDL_VERSION_ATLEAST(2,0,0)
SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_BUTTON_RETURNKEY_DEFAULT, title.c_str(),
msg.c_str(), NULL);
#elif defined(BBGE_BUILD_MACOSX)
cocoaMessageBox(title, msg);
#elif defined(BBGE_BUILD_UNIX)
// !!! FIXME: probably don't want the whole GTK+ dependency in here...
fprintf(stderr, "%s: %s\n", title.c_str(), msg.c_str());
#else
#error Please define your platform.
#endif
}
Vector getNearestPointOnLine(Vector a, Vector b, Vector c)
{
Vector nearest;
/// Local Variables ///////////////////////////////////////////////////////////
long dot_ta,dot_tb;
///////////////////////////////////////////////////////////////////////////////
// SEE IF a IS THE NEAREST POINT - ANGLE IS OBTUSE
dot_ta = (c.x - a.x)*(b.x - a.x) + (c.y - a.y)*(b.y - a.y);
if (dot_ta <= 0) // IT IS OFF THE a VERTEX
{
nearest.x = a.x;
nearest.y = a.y;
return nearest;
}
dot_tb = (c.x - b.x)*(a.x - b.x) + (c.y - b.y)*(a.y - b.y);
// SEE IF b IS THE NEAREST POINT - ANGLE IS OBTUSE
if (dot_tb <= 0)
{
nearest.x = b.x;
nearest.y = b.y;
return nearest;
}
// FIND THE REAL NEAREST POINT ON THE LINE SEGMENT - BASED ON RATIO
nearest.x = a.x + ((b.x - a.x) * dot_ta)/(dot_ta + dot_tb);
nearest.y = a.y + ((b.y - a.y) * dot_ta)/(dot_ta + dot_tb);
return nearest;
}
/*
bool isTouchingLine(Vector lineStart, Vector lineEnd, Vector point, int radius)
{
Vector p = getNearestPointOnLine(lineStart, lineEnd, point);
Vector diff = p - point;
std::ostringstream os;
os << "s(" << lineStart.x << ", " << lineStart.y << ") e(";
os << lineEnd.x << ", " << lineEnd.y << ") - p(" << point.x << ", " << point.y << ")";
debugLog(os.str());
return (diff.getSquaredLength2D() < sqr(radius));
}
*/
bool isTouchingLine(Vector lineStart, Vector lineEnd, Vector point, int radius, Vector *closestP)
{
Vector dir = lineEnd - lineStart;
Vector diff = point - lineStart;
Vector closest;
if (!dir.isZero()) {
float t = diff.dot2D(dir) / dir.dot2D(dir);
if (t < 0.0f)
t = 0.0f;
if (t > 1.0f)
t = 1.0f;
closest = lineStart + t * dir;
} else {
closest = lineStart;
}
Vector d = point - closest;
float distsqr = d.dot2D(d);
if (closestP)
(*closestP) = closest;
return distsqr <= radius*radius;
}
GLuint generateEmptyTexture(int quality) // Create An Empty Texture
{
GLuint txtnumber=0; // Texture ID
unsigned char *data; // Stored Data
// Create Storage Space For Texture Data (128x128x4)
int size = (quality * quality) * 4;
data = new unsigned char[size];
memset(data, 0, size); // Clear Storage Memory
#ifdef BBGE_BUILD_OPENGL
glGenTextures(1, &txtnumber); // Create 1 Texture
glBindTexture(GL_TEXTURE_2D, txtnumber); // Bind The Texture
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_LINEAR);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, quality, quality, 0,
GL_RGBA, GL_UNSIGNED_BYTE, data); // Build Texture Using Information In data
#endif
delete [] data; // Release data
return txtnumber; // Return The Texture ID
}
Vector randVector(float mag)
{
float angle = (rand() / (float)RAND_MAX) * 2.0f * PI;
float x = sinf(angle), y = cosf(angle);
return Vector(x*mag, y*mag);
}
float lerp(const float &v1, const float &v2, float dt, int lerpType)
{
switch(lerpType)
{
case LERP_EASE:
{
// ease in and out
return v1*(2*(dt*dt*dt)-3*sqr(dt)+1) + v2*(3*sqr(dt) - 2*(dt*dt*dt));
}
case LERP_EASEIN:
{
float t = 1 - dt;
return (v2-v1)*(sinf(-t*PI_HALF)+1)+v1;
}
case LERP_EASEOUT:
{
return (v2-v1)*-sinf(-dt*PI_HALF)+v1;
}
}
return (v2-v1)*dt+v1;
}
#if 0
#include <zlib.h>
#include <assert.h>
#define CHUNK 16384
/* Compress from file source to file dest until EOF on source.
def() returns Z_OK on success, Z_MEM_ERROR if memory could not be
allocated for processing, Z_STREAM_ERROR if an invalid compression
level is supplied, Z_VERSION_ERROR if the version of zlib.h and the
version of the library linked do not match, or Z_ERRNO if there is
an error reading or writing the files. */
int packFile(const std::string &sourcef, const std::string &destf, int level)
{
FILE *source = fopen(core->adjustFilenameCase(sourcef).c_str(), "rb");
FILE *dest = fopen(core->adjustFilenameCase(destf).c_str(), "wb");
if (!source || !dest)
return 0;
int ret, flush;
unsigned have;
z_stream strm;
unsigned char in[CHUNK];
unsigned char out[CHUNK];
/* allocate deflate state */
strm.zalloc = Z_NULL;
strm.zfree = Z_NULL;
strm.opaque = Z_NULL;
ret = deflateInit(&strm, level);
if (ret != Z_OK)
return ret;
/* compress until end of file */
do {
strm.avail_in = fread(in, 1, CHUNK, source);
if (ferror(source)) {
(void)deflateEnd(&strm);
return Z_ERRNO;
}
flush = feof(source) ? Z_FINISH : Z_NO_FLUSH;
strm.next_in = in;
/* run deflate() on input until output buffer not full, finish
compression if all of source has been read in */
do {
strm.avail_out = CHUNK;
strm.next_out = out;
ret = deflate(&strm, flush); /* no bad return value */
assert(ret != Z_STREAM_ERROR); /* state not clobbered */
have = CHUNK - strm.avail_out;
if (fwrite(out, 1, have, dest) != have || ferror(dest)) {
(void)deflateEnd(&strm);
return Z_ERRNO;
}
} while (strm.avail_out == 0);
assert(strm.avail_in == 0); /* all input will be used */
/* done when last data in file processed */
} while (flush != Z_FINISH);
assert(ret == Z_STREAM_END); /* stream will be complete */
/* clean up and return */
(void)deflateEnd(&strm);
fclose(source);
fclose(dest);
return Z_OK;
}
/* Decompress from file source to file dest until stream ends or EOF.
inf() returns Z_OK on success, Z_MEM_ERROR if memory could not be
allocated for processing, Z_DATA_ERROR if the deflate data is
invalid or incomplete, Z_VERSION_ERROR if the version of zlib.h and
the version of the library linked do not match, or Z_ERRNO if there
is an error reading or writing the files. */
int unpackFile(const std::string &sourcef, const std::string &destf)
{
FILE *source = fopen(core->adjustFilenameCase(sourcef).c_str(), "rb");
FILE *dest = fopen(core->adjustFilenameCase(destf).c_str(), "wb");
if (!source || !dest)
return 0;
int ret;
unsigned have;
z_stream strm;
unsigned char in[CHUNK];
unsigned char out[CHUNK];
/* allocate inflate state */
strm.zalloc = Z_NULL;
strm.zfree = Z_NULL;
strm.opaque = Z_NULL;
strm.avail_in = 0;
strm.next_in = Z_NULL;
ret = inflateInit(&strm);
if (ret != Z_OK)
return ret;
/* decompress until deflate stream ends or end of file */
do {
strm.avail_in = fread(in, 1, CHUNK, source);
if (ferror(source)) {
(void)inflateEnd(&strm);
return Z_ERRNO;
}
if (strm.avail_in == 0)
break;
strm.next_in = in;
/* run inflate() on input until output buffer not full */
do {
strm.avail_out = CHUNK;
strm.next_out = out;
ret = inflate(&strm, Z_NO_FLUSH);
assert(ret != Z_STREAM_ERROR); /* state not clobbered */
switch (ret) {
case Z_NEED_DICT:
ret = Z_DATA_ERROR; /* and fall through */
case Z_DATA_ERROR:
case Z_MEM_ERROR:
(void)inflateEnd(&strm);
return ret;
}
have = CHUNK - strm.avail_out;
if (fwrite(out, 1, have, dest) != have || ferror(dest)) {
(void)inflateEnd(&strm);
return Z_ERRNO;
}
} while (strm.avail_out == 0);
/* done when inflate() says it's done */
} while (ret != Z_STREAM_END);
/* clean up and return */
(void)inflateEnd(&strm);
fclose(source);
fclose(dest);
return ret == Z_STREAM_END ? Z_OK : Z_DATA_ERROR;
}
#endif
void openURL(const std::string &url)
{
#ifdef BBGE_BUILD_WINDOWS
ShellExecute(NULL, "open", url.c_str(), NULL, NULL, SW_SHOWNORMAL);
#endif
#if defined(BBGE_BUILD_MACOSX)
CFStringRef str = CFStringCreateWithCString (0, url.c_str(), 0);
CFURLRef ref = CFURLCreateWithString(kCFAllocatorDefault, str, NULL);
LSOpenCFURLRef(ref, 0);
CFRelease(ref);
CFRelease(str);
#elif BBGE_BUILD_UNIX
std::string cmd("PATH=$PATH:. xdg-open '");
cmd += url;
cmd += "'";
if (system(cmd.c_str()) != 0)
debugLog("system(xdg_open '" + url + "') failed");
#endif
}
void clamp256Col(int *r)
{
if (*r > 255) *r = 255;
if (*r < 0) *r = 0;
}
Vector colorRGB(int r, int g, int b)
{
Vector c;
clamp256Col(&r);
clamp256Col(&g);
clamp256Col(&b);
c.x = float(r)/255.0f;
c.y = float(g)/255.0f;
c.z = float(b)/255.0f;
return c;
}
std::string underscoresToSpaces(const std::string &str)
{
std::string s = str;
for (int i = 0; i < s.size(); i++)
if (s[i] == '_') s[i] = ' ';
return s;
}
std::string spacesToUnderscores(const std::string &str)
{
std::string s = str;
for (int i = 0; i < s.size(); i++)
if (s[i] == ' ') s[i] = '_';
return s;
}
void triggerBreakpoint()
{
#ifdef _MSC_VER
__debugbreak();
#elif defined(__GNUC__) && ((__i386__) || (__x86_64__))
__asm__ __volatile__ ( "int $3\n\t" );
#else
raise(SIGTRAP);
#endif
}
bool createDir(const std::string& d)
{
bool success = false;
int err = 0;
#if defined(BBGE_BUILD_UNIX)
if (!mkdir(d.c_str(), S_IRWXU))
success = true;
else
{
err = errno;
if (err == EEXIST)
success = true;
}
#elif defined(BBGE_BUILD_WINDOWS)
if (CreateDirectoryA(d.c_str(), NULL))
success = true;
else
{
err = GetLastError();
if(err == ERROR_ALREADY_EXISTS)
success = true;
}
#endif
if (!success)
{
std::ostringstream os;
os << "Failed to create directory: [" << d << "], error code: " << err;
debugLog(os.str());
}
return success;
}
#include "DeflateCompressor.h"
char *readCompressedFile(std::string path, unsigned long *size_ret)
{
unsigned long size = 0;
char *buf = readFile(path, &size);
if(!buf)
return NULL;
ZlibCompressor z; // allocates with new[] by default
z.init(buf, size, ByteBuffer::TAKE_OVER);
z.Compressed(true);
z.Decompress();
if(!z.Compressed())
{
if (size_ret)
*size_ret = z.size();
z.wpos(z.size());
z << '\0'; // be sure the buffer is null-terminated
buf = (char*)z.ptr();
z._setPtr(NULL);
return buf;
}
return NULL;
}
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