Mercurial > hg > dmlib
annotate src/libgfx.h @ 1286:b812fad6f33e
Work on libgfx.
| author | Matti Hamalainen <ccr@tnsp.org> |
|---|---|
| date | Fri, 18 Aug 2017 15:20:44 +0300 |
| parents | e4bda4909d72 |
| children | 6c8b19d1d196 |
| rev | line source |
|---|---|
| 435 | 1 /* |
| 2 * Functions for loading and saving bitmap images | |
| 3 * Programmed and designed by Matti 'ccr' Hamalainen | |
| 4 * (C) Copyright 2012 Tecnic Software productions (TNSP) | |
| 5 * | |
| 6 * Please read file 'COPYING' for information on license and distribution. | |
| 7 */ | |
| 8 #ifndef LIBMGFX_H | |
| 9 #define LIBMGFX_H 1 | |
| 10 | |
| 11 #include "dmlib.h" | |
|
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12 |
| 435 | 13 |
| 14 #ifdef __cplusplus | |
| 15 extern "C" { | |
| 16 #endif | |
| 17 | |
| 18 | |
| 19 enum | |
| 20 { | |
| 21 IMGFMT_PNG, | |
| 22 IMGFMT_PPM, | |
| 23 IMGFMT_PCX, | |
|
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Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
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24 IMGFMT_ILBM, |
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25 IMGFMT_RAW, |
| 435 | 26 IMGFMT_ARAW, |
| 27 | |
| 28 IMGFMT_LAST | |
| 29 }; | |
| 30 | |
| 31 | |
| 32 enum | |
| 33 { | |
| 34 DM_IFMT_PALETTE, | |
| 35 DM_IFMT_RGB, | |
| 36 DM_IFMT_RGBA, | |
| 37 DM_IFMT_RGB_PLANE, | |
| 38 }; | |
| 39 | |
| 40 | |
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41 enum |
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42 { |
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43 DM_ERRMODE_FAIL = 0, |
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44 DM_ERRMODE_RECOV_1, |
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45 DM_ERRMODE_RECOV_2, |
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46 }; |
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47 |
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48 |
| 1286 | 49 // Bitmapped image struct |
| 435 | 50 typedef struct |
| 51 { | |
| 1286 | 52 int format; // one of types specified by DM_IFMT_* |
| 53 int width, height; | |
| 54 int pitch; // bytes per scanline | |
| 55 int bpp; // bits per pixel | |
| 56 | |
| 57 int ncolors; // number of colors in palette, if any | |
| 58 int ctransp; // transparency color index | |
| 59 BOOL constpal; // is the palette a const? | |
| 60 DMColor *pal; // pointer to palette struct, NULL if no palette | |
| 61 | |
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62 size_t size; |
| 435 | 63 Uint8 *data; |
| 64 } DMImage; | |
| 65 | |
| 66 | |
| 67 typedef struct | |
| 68 { | |
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Add separate X and Y scaling to gfxconv and libgfx outputters.
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69 int scaleX, scaleY, nplanes, format; |
| 435 | 70 BOOL interleave, paletted; |
| 71 } DMImageSpec; | |
| 72 | |
| 73 | |
| 74 typedef struct | |
| 75 { | |
| 76 char *fext; | |
| 77 char *desc; | |
| 78 int (*probe)(const Uint8 *buf, const size_t len); | |
| 79 int (*read)(const char *filename, DMImage **pimg); | |
| 80 int (*readFILE)(FILE *fp, DMImage **pimg); | |
| 81 int (*write)(const char *filename, DMImage *pimg, DMImageSpec *spec); | |
| 82 int (*writeFILE)(FILE *fp, DMImage *pimg, DMImageSpec *spec); | |
| 83 } DMImageFormat; | |
| 84 | |
| 85 | |
| 86 // Probe scores | |
| 87 #define DM_PROBE_SCORE_MAX 1000 | |
| 88 #define DM_PROBE_SCORE_GOOD 750 | |
| 89 #define DM_PROBE_SCORE_AVG 500 | |
| 90 #define DM_PROBE_SCORE_MAYBE 250 | |
| 91 #define DM_PROBE_SCORE_FALSE 0 | |
| 92 | |
| 93 | |
| 94 extern DMImageFormat dmImageFormatList[IMGFMT_LAST]; | |
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95 extern int dmGFXErrorMode; |
| 435 | 96 |
| 97 | |
| 1286 | 98 DMImage * dmImageAlloc(const int width, const int height, const int format, const int bpp); |
| 435 | 99 void dmImageFree(DMImage *img); |
| 1286 | 100 int dmImageGetBytesPerPixel(const int format); |
| 435 | 101 int dmImageProbeGeneric(const Uint8 *buf, const size_t len, DMImageFormat **fmt, int *index); |
| 102 | |
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103 BOOL dmCompareColor(const DMColor *c1, const DMColor *c2, BOOL alpha); |
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104 |
| 435 | 105 |
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106 int dmWriteImageData(DMImage *img, void *cbdata, int (*writeRowCB)(void *, Uint8 *, size_t), const DMImageSpec *spec); |
| 435 | 107 |
| 462 | 108 int dmWriteIFFMasterRAWPalette(FILE *fp, DMImage *img, int ncolors, const char *indent, const char *type); |
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109 int dmWriteRAWImageFILE(FILE *fp, DMImage *img, DMImageSpec *spec); |
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110 int dmWriteRAWImage(const char *filename, DMImage *img, DMImageSpec *spec); |
| 435 | 111 |
| 112 int dmWritePPMImageFILE(FILE *fp, DMImage *img, DMImageSpec *spec); | |
| 113 int dmWritePPMImage(const char *filename, DMImage *img, DMImageSpec *spec); | |
| 114 | |
| 115 #ifdef DM_USE_LIBPNG | |
| 116 int dmWritePNGImageFILE(FILE *fp, DMImage *img, DMImageSpec *spec); | |
| 117 int dmWritePNGImage(const char *filename, DMImage *img, DMImageSpec *spec); | |
| 118 #endif | |
| 119 | |
| 120 int dmWritePCXImageFILE(FILE *fp, DMImage *img, DMImageSpec *spec); | |
| 121 int dmWritePCXImage(const char *filename, DMImage *img, DMImageSpec *spec); | |
| 122 int dmReadPCXImageFILE(FILE *fp, DMImage **pimg); | |
| 123 int dmReadPCXImage(const char *filename, DMImage **pimg); | |
| 124 | |
| 125 | |
| 126 #ifdef __cplusplus | |
| 127 } | |
| 128 #endif | |
| 129 | |
| 130 #endif // LIBMGFX_H |