Mercurial > hg > dmlib
view libgfx.h @ 510:43ea59887c69
Start work on making C64 formats encoding possible by changing DMDecodeOps
to DMEncDecOps and adding fields and op enums for custom encode functions, renaming,
etc. Split generic op sanity checking into a separate function in
preparation for its use in generic encoding function.
author | Matti Hamalainen <ccr@tnsp.org> |
---|---|
date | Mon, 19 Nov 2012 15:06:01 +0200 |
parents | b89598501cec |
children | d400e32b62d9 |
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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" #include "dmfile.h" #ifdef __cplusplus extern "C" { #endif enum { IMGFMT_PNG, IMGFMT_PPM, IMGFMT_PCX, IMGFMT_ILBM, IMGFMT_ARAW, IMGFMT_LAST }; enum { DM_IFMT_PALETTE, DM_IFMT_RGB, DM_IFMT_RGBA, DM_IFMT_RGB_PLANE, }; // RGBx color struct typedef struct { Uint8 r, g, b, a; } DMColor; // Bitmapped image struct (can be one of types specified by DM_IFMT_*) typedef struct { int width, height, pitch; BOOL constpal; int ncolors, ctransp; DMColor *pal; Uint8 *data; } DMImage; typedef struct { int scale, 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]; DMImage * dmImageAlloc(int width, int height); void dmImageFree(DMImage *img); int dmImageGetBytesPerPixel(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, BOOL (*writeRowCB)(void *, Uint8 *, size_t), const DMImageSpec *spec); int dmWriteIFFMasterRAWPalette(FILE *fp, DMImage *img, int ncolors, const char *indent, const char *type); int dmWriteIFFMasterRAWImageFILE(FILE *fp, DMImage *img, DMImageSpec *spec); int dmWriteIFFMasterRAWImage(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