Mercurial > hg > dmlib
view src/libgfx.h @ 1286:b812fad6f33e
Work on libgfx.
author | Matti Hamalainen <ccr@tnsp.org> |
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date | Fri, 18 Aug 2017 15:20:44 +0300 |
parents | e4bda4909d72 |
children | 6c8b19d1d196 |
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/* * Functions for loading and saving bitmap images * Programmed and designed by Matti 'ccr' Hamalainen * (C) Copyright 2012 Tecnic Software productions (TNSP) * * Please read file 'COPYING' for information on license and distribution. */ #ifndef LIBMGFX_H #define LIBMGFX_H 1 #include "dmlib.h" #ifdef __cplusplus extern "C" { #endif enum { IMGFMT_PNG, IMGFMT_PPM, IMGFMT_PCX, IMGFMT_ILBM, IMGFMT_RAW, IMGFMT_ARAW, IMGFMT_LAST }; enum { DM_IFMT_PALETTE, DM_IFMT_RGB, DM_IFMT_RGBA, DM_IFMT_RGB_PLANE, }; enum { DM_ERRMODE_FAIL = 0, DM_ERRMODE_RECOV_1, DM_ERRMODE_RECOV_2, }; // Bitmapped image struct typedef struct { int format; // one of types specified by DM_IFMT_* int width, height; int pitch; // bytes per scanline int bpp; // bits per pixel int ncolors; // number of colors in palette, if any int ctransp; // transparency color index BOOL constpal; // is the palette a const? DMColor *pal; // pointer to palette struct, NULL if no palette size_t size; Uint8 *data; } DMImage; typedef struct { int scaleX, scaleY, nplanes, format; BOOL interleave, paletted; } DMImageSpec; typedef struct { char *fext; char *desc; int (*probe)(const Uint8 *buf, const size_t len); int (*read)(const char *filename, DMImage **pimg); int (*readFILE)(FILE *fp, DMImage **pimg); int (*write)(const char *filename, DMImage *pimg, DMImageSpec *spec); int (*writeFILE)(FILE *fp, DMImage *pimg, DMImageSpec *spec); } DMImageFormat; // Probe scores #define DM_PROBE_SCORE_MAX 1000 #define DM_PROBE_SCORE_GOOD 750 #define DM_PROBE_SCORE_AVG 500 #define DM_PROBE_SCORE_MAYBE 250 #define DM_PROBE_SCORE_FALSE 0 extern DMImageFormat dmImageFormatList[IMGFMT_LAST]; extern int dmGFXErrorMode; DMImage * dmImageAlloc(const int width, const int height, const int format, const int bpp); void dmImageFree(DMImage *img); int dmImageGetBytesPerPixel(const int format); int dmImageProbeGeneric(const Uint8 *buf, const size_t len, DMImageFormat **fmt, int *index); BOOL dmCompareColor(const DMColor *c1, const DMColor *c2, BOOL alpha); int dmWriteImageData(DMImage *img, void *cbdata, int (*writeRowCB)(void *, Uint8 *, size_t), const DMImageSpec *spec); int dmWriteIFFMasterRAWPalette(FILE *fp, DMImage *img, int ncolors, const char *indent, const char *type); int dmWriteRAWImageFILE(FILE *fp, DMImage *img, DMImageSpec *spec); int dmWriteRAWImage(const char *filename, DMImage *img, DMImageSpec *spec); int dmWritePPMImageFILE(FILE *fp, DMImage *img, DMImageSpec *spec); int dmWritePPMImage(const char *filename, DMImage *img, DMImageSpec *spec); #ifdef DM_USE_LIBPNG int dmWritePNGImageFILE(FILE *fp, DMImage *img, DMImageSpec *spec); int dmWritePNGImage(const char *filename, DMImage *img, DMImageSpec *spec); #endif int dmWritePCXImageFILE(FILE *fp, DMImage *img, DMImageSpec *spec); int dmWritePCXImage(const char *filename, DMImage *img, DMImageSpec *spec); int dmReadPCXImageFILE(FILE *fp, DMImage **pimg); int dmReadPCXImage(const char *filename, DMImage **pimg); #ifdef __cplusplus } #endif #endif // LIBMGFX_H