mirror of
https://github.com/AquariaOSE/Aquaria.git
synced 2024-11-29 03:33:48 +00:00
116 lines
4.3 KiB
C
116 lines
4.3 KiB
C
/*
|
|
* PNG loader library for OpenGL v1.46 (02/06/14)
|
|
* by Ben Wyatt ben@wyatt100.freeserve.co.uk
|
|
* Using LibPNG 1.0.2 and ZLib 1.1.3
|
|
*
|
|
* This software is provided 'as-is', without any express or implied warranty.
|
|
* In no event will the author be held liable for any damages arising from the
|
|
* use of this software.
|
|
*
|
|
* Permission is hereby granted to use, copy, modify, and distribute this
|
|
* source code, or portions hereof, for any purpose, without fee, subject to
|
|
* the following restrictions:
|
|
*
|
|
* 1. The origin of this source code must not be misrepresented. You must not
|
|
* claim that you wrote the original software. If you use this software in
|
|
* a product, an acknowledgment in the product documentation would be
|
|
* appreciated but is not required.
|
|
* 2. Altered versions must be plainly marked as such and must not be
|
|
* misrepresented as being the original source.
|
|
* 3. This notice must not be removed or altered from any source distribution.
|
|
*/
|
|
|
|
// Fixed for use in Aquaria -- fg
|
|
|
|
#ifndef _GLPNG_H_
|
|
#define _GLPNG_H_
|
|
|
|
#include <stdio.h>
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
/*
|
|
#ifdef _MSC_VER
|
|
#ifdef _DEBUG
|
|
#pragma comment (lib, "glpngd.lib")
|
|
#else
|
|
#pragma comment (lib, "glpng.lib")
|
|
#endif
|
|
#endif
|
|
*/
|
|
|
|
/* XXX This is from Win32's <windef.h> */
|
|
#ifndef APIENTRY
|
|
#if (_MSC_VER >= 800) || defined(_STDCALL_SUPPORTED)
|
|
#define APIENTRY __stdcall
|
|
#else
|
|
#define APIENTRY
|
|
#endif
|
|
#endif
|
|
|
|
/* Mipmapping parameters */
|
|
#define PNG_NOMIPMAPS 0 /* No mipmapping */
|
|
#define PNG_BUILDMIPMAPS -1 /* Calls a clone of gluBuild2DMipmaps() */
|
|
#define PNG_SIMPLEMIPMAPS -2 /* Generates mipmaps without filtering */
|
|
|
|
/* Who needs an "S" anyway? */
|
|
#define PNG_NOMIPMAP PNG_NOMIPMAPS
|
|
#define PNG_BUILDMIPMAP PNG_BUILDMIPMAPS
|
|
#define PNG_SIMPLEMIPMAP PNG_SIMPLEMIPMAPS
|
|
|
|
/* Transparency parameters */
|
|
#define PNG_LUMINANCEALPHA -4
|
|
#define PNG_CALLBACKT -3 /* Call the callback function to generate alpha */
|
|
#define PNG_ALPHA -2 /* Use alpha channel in PNG file, if there is one */
|
|
#define PNG_SOLID -1 /* No transparency */
|
|
#define PNG_STENCIL 0 /* Sets alpha to 0 for r=g=b=0, 1 otherwise */
|
|
#define PNG_BLEND1 1 /* a = r+g+b */
|
|
#define PNG_BLEND2 2 /* a = (r+g+b)/2 */
|
|
#define PNG_BLEND3 3 /* a = (r+g+b)/3 */
|
|
#define PNG_BLEND4 4 /* a = r*r+g*g+b*b */
|
|
#define PNG_BLEND5 5 /* a = (r*r+g*g+b*b)/2 */
|
|
#define PNG_BLEND6 6 /* a = (r*r+g*g+b*b)/3 */
|
|
#define PNG_BLEND7 7 /* a = (r*r+g*g+b*b)/4 */
|
|
#define PNG_BLEND8 8 /* a = sqrt(r*r+g*g+b*b) */
|
|
|
|
typedef struct {
|
|
unsigned int Width;
|
|
unsigned int Height;
|
|
unsigned int Depth;
|
|
unsigned int Alpha;
|
|
} pngInfo;
|
|
|
|
typedef struct {
|
|
unsigned int Width;
|
|
unsigned int Height;
|
|
unsigned int Depth;
|
|
unsigned int Alpha;
|
|
|
|
unsigned int Components;
|
|
unsigned char *Data;
|
|
unsigned char *Palette;
|
|
} pngRawInfo;
|
|
|
|
extern int APIENTRY pngLoadRaw(const char *filename, pngRawInfo *rawinfo);
|
|
extern int APIENTRY pngLoadRawF(FILE *file, pngRawInfo *rawinfo);
|
|
|
|
extern int APIENTRY pngLoad(const char *filename, int mipmap, int trans, pngInfo *info);
|
|
extern int APIENTRY pngLoadF(FILE *file, int mipmap, int trans, pngInfo *info);
|
|
extern int APIENTRY pngLoadMem(const char *mem, int size, int mipmap, int trans, pngInfo *info);
|
|
|
|
extern unsigned int APIENTRY pngBind(const char *filename, int mipmap, int trans, pngInfo *info, int wrapst, int minfilter, int magfilter);
|
|
extern unsigned int APIENTRY pngBindF(FILE *file, int mipmap, int trans, pngInfo *info, int wrapst, int minfilter, int magfilter);
|
|
extern unsigned int APIENTRY pngBindMem(const char *mem, int size, int mipmap, int trans, pngInfo *info, int wrapst, int minfilter, int magfilter);
|
|
|
|
extern void APIENTRY pngSetStencil(unsigned char red, unsigned char green, unsigned char blue);
|
|
extern void APIENTRY pngSetAlphaCallback(unsigned char (*callback)(unsigned char red, unsigned char green, unsigned char blue));
|
|
extern void APIENTRY pngSetViewingGamma(double viewingGamma);
|
|
extern void APIENTRY pngSetStandardOrientation(int standardorientation);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif
|