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comparison tools/libgfx.h @ 1307:43b13dbbdcd1

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Moved libgfx to tools/ as it's not really a very generic piece of code that belongs to the engine ..
author Matti Hamalainen <ccr@tnsp.org>
date Sat, 19 Aug 2017 15:18:29 +0300
parents src/libgfx.h@e03f20d0f785
children 5ad7d780a09b
comparison
equal deleted inserted replaced
1306:696c58784635 1307:43b13dbbdcd1
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"
12
13
14 #ifdef __cplusplus
15 extern "C" {
16 #endif
17
18
19 enum
20 {
21 IMGFMT_PNG,
22 IMGFMT_PPM,
23 IMGFMT_PCX,
24 IMGFMT_ILBM,
25 IMGFMT_RAW,
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 };
38
39
40 enum
41 {
42 DM_ERRMODE_FAIL = 0,
43 DM_ERRMODE_RECOV_1,
44 DM_ERRMODE_RECOV_2,
45 };
46
47
48 // Bitmapped image struct
49 typedef struct
50 {
51 int format; // one of types specified by DM_IFMT_*
52 int width, height;
53 int pitch; // bytes per scanline
54 int bpp; // bits per pixel
55
56 int ncolors; // number of colors in palette, if any
57 int ctransp; // transparency color index
58 BOOL constpal; // is the palette a const?
59 DMColor *pal; // pointer to palette struct, NULL if no palette
60
61 size_t size;
62 Uint8 *data;
63 } DMImage;
64
65
66 typedef struct
67 {
68 int format;
69 int scaleX, scaleY;
70 int nplanes, bpp;
71 BOOL planar, paletted;
72 } DMImageConvSpec;
73
74
75 typedef struct
76 {
77 char *fext;
78 char *desc;
79 int (*probe)(const Uint8 *buf, const size_t len);
80 int (*read)(const char *filename, DMImage **pimg);
81 int (*readFILE)(FILE *fp, DMImage **pimg);
82 int (*write)(const char *filename, DMImage *pimg, const DMImageConvSpec *spec);
83 int (*writeFILE)(FILE *fp, DMImage *pimg, const DMImageConvSpec *spec);
84 } DMImageFormat;
85
86
87 // Probe scores
88 #define DM_PROBE_SCORE_MAX 1000
89 #define DM_PROBE_SCORE_GOOD 750
90 #define DM_PROBE_SCORE_AVG 500
91 #define DM_PROBE_SCORE_MAYBE 250
92 #define DM_PROBE_SCORE_FALSE 0
93
94
95 extern DMImageFormat dmImageFormatList[IMGFMT_LAST];
96 extern int dmGFXErrorMode;
97
98
99 DMImage * dmImageAlloc(const int width, const int height, const int format, const int bpp);
100 void dmImageFree(DMImage *img);
101 int dmImageGetBytesPerPixel(const int format);
102 int dmImageProbeGeneric(const Uint8 *buf, const size_t len, DMImageFormat **fmt, int *index);
103
104 BOOL dmCompareColor(const DMColor *c1, const DMColor *c2, BOOL alpha);
105
106
107 int dmWriteImageData(DMImage *img, void *cbdata, int (*writeRowCB)(void *, const Uint8 *, const size_t), const DMImageConvSpec *spec);
108
109 int dmWriteIFFMasterRAWPalette(FILE *fp, DMImage *img, int ncolors, const char *indent, const char *type);
110 int dmWriteRAWImageFILE(FILE *fp, DMImage *img, const DMImageConvSpec *spec);
111 int dmWriteRAWImage(const char *filename, DMImage *img, const DMImageConvSpec *spec);
112
113 int dmWritePPMImageFILE(FILE *fp, DMImage *img, const DMImageConvSpec *spec);
114 int dmWritePPMImage(const char *filename, DMImage *img, const DMImageConvSpec *spec);
115
116 #ifdef DM_USE_LIBPNG
117 int dmWritePNGImageFILE(FILE *fp, DMImage *img, const DMImageConvSpec *spec);
118 int dmWritePNGImage(const char *filename, DMImage *img, const DMImageConvSpec *spec);
119 #endif
120
121 int dmWritePCXImageFILE(FILE *fp, DMImage *img, const DMImageConvSpec *spec);
122 int dmWritePCXImage(const char *filename, DMImage *img, const DMImageConvSpec *spec);
123 int dmReadPCXImageFILE(FILE *fp, DMImage **pimg);
124 int dmReadPCXImage(const char *filename, DMImage **pimg);
125
126
127 #ifdef __cplusplus
128 }
129 #endif
130
131 #endif // LIBMGFX_H