Mercurial > hg > dmlib

comparison tools/lib64gfx.h @ 912:70cbbd5b7aea

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Moved lib64gfx files under tools, as it's not generic DMLIB module really.
author Matti Hamalainen <ccr@tnsp.org>
date Tue, 24 Feb 2015 00:47:39 +0200
parents src/lib64gfx.h@f29a6164ec80
children ba6b210c9bf4
comparison
equal deleted inserted replaced
911:602b4aa34293 912:70cbbd5b7aea
1 /*
2 * Functions for reading and converting various restricted
3 * C64/etc and/or indexed/paletted graphics formats.
4 * Programmed and designed by Matti 'ccr' Hamalainen
5 * (C) Copyright 2012 Tecnic Software productions (TNSP)
6 *
7 * Please read file 'COPYING' for information on license and distribution.
8 */
9 #ifndef LIB64GFX_H
10 #define LIB64GFX_H 1
11
12 #include "libgfx.h"
13
14 #ifdef __cplusplus
15 extern "C" {
16 #endif
17
18
19 // Bitmap constants
20 #define C64_SCR_WIDTH 320
21 #define C64_SCR_HEIGHT 200
22 #define C64_SCR_CH_WIDTH (C64_SCR_WIDTH/8)
23 #define C64_SCR_CH_HEIGHT (C64_SCR_HEIGHT/8)
24 #define C64_SCR_COLOR_SIZE (C64_SCR_CH_WIDTH * C64_SCR_CH_HEIGHT)
25 #define C64_SCR_SCREEN_SIZE (C64_SCR_CH_WIDTH * C64_SCR_CH_HEIGHT)
26 #define C64_SCR_BITMAP_SIZE (C64_SCR_WIDTH * C64_SCR_HEIGHT/8)
27 #define C64_SCR_EXTRADATA 1024
28 #define C64_SCR_MAX_BANK 8
29
30 // C64 video screen pixel aspect ratio on PAL
31 #define C64_SCR_PAR_XY (0.9365f)
32
33 // Sprite constants
34 #define C64_SPR_WIDTH 3 // bytes
35 #define C64_SPR_HEIGHT 21 // lines
36 #define C64_SPR_WIDTH_PX (8 * C64_SPR_WIDTH)
37 #define C64_SPR_SIZE ((C64_SPR_WIDTH * C64_SPR_HEIGHT) + 1)
38
39 // Character constants
40 #define C64_CHR_WIDTH 1 // bytes
41 #define C64_CHR_HEIGHT 8 // lines
42 #define C64_CHR_WIDTH_PX (8 * C64_CHR_WIDTH)
43 #define C64_CHR_SIZE (C64_CHR_WIDTH * C64_CHR_HEIGHT)
44
45 // Etc.
46 #define C64_RAM_SIZE (64*1024)
47 #define C64_NCOLORS 16
48 #define C64_MAX_COLORS 16
49 #define C64_VIDBANK_SIZE (16*1024)
50 #define C64_MAX_SPRITES (C64_VIDBANK_SIZE / C64_SPR_SIZE)
51 #define C64_MAX_CHARS 256
52
53 // Different supported C64 bitmap "modes"
54 enum
55 {
56 D64_FMT_HIRES = 0x0000,
57 D64_FMT_MC = 0x0001,
58 D64_FMT_ILACE = 0x0002,
59 D64_FMT_FLI = 0x0004,
60
61 D64_FMT_MODE_MASK = 0x000f,
62
63 };
64
65 enum
66 {
67 D64_FLI_2BANK,
68 D64_FLI_4BANK,
69 D64_FLI_8BANK,
70 };
71
72 enum
73 {
74 D64_ILACE_COLOR,
75 D64_ILACE_RES,
76 };
77
78 typedef struct
79 {
80 BOOL multicolor, xexpand, yexpand;
81 int color, xc, yc;
82 Uint8 data[C64_SPR_HEIGHT][C64_SPR_WIDTH];
83 } DMC64Sprite;
84
85 enum
86 {
87 D64_CHR_GLOBAL, // use font-global setting
88 D64_CHR_MULTICOLOR, // character is multicolor
89 D64_CHR_HIRES,
90 };
91
92 typedef struct
93 {
94 int mode, color;
95 Uint8 data[C64_CHR_HEIGHT];
96 } DMC64Char;
97
98
99 typedef struct
100 {
101 BOOL multicolor;
102 int colbg, color, col1, col2;
103 int nglyphs;
104 DMC64Char *glyphs;
105 } DMC64Font;
106
107
108
109 typedef struct
110 {
111 int type, // Image type (D64_FMT_*)
112 fliType, // FLI type (if FLI used)
113 laceType, // Interlace type (D64_ILACE_*)
114 laceBank1,
115 laceBank2;
116
117 Uint8 color[C64_SCR_MAX_BANK][C64_SCR_COLOR_SIZE],
118 bitmap[C64_SCR_MAX_BANK][C64_SCR_BITMAP_SIZE],
119 screen[C64_SCR_MAX_BANK][C64_SCR_SCREEN_SIZE],
120 extradata[C64_SCR_EXTRADATA],
121 d020, bgcolor, d022, d023, d024;
122
123 Uint8 charset[C64_MAX_CHARS][C64_CHR_HEIGHT * C64_CHR_WIDTH];
124 DMC64Sprite sprites[C64_MAX_SPRITES];
125 } DMC64Image;
126
127
128 enum
129 {
130 DT_COLOR_RAM,
131 DT_BITMAP,
132 DT_SCREEN_RAM,
133 DT_BGCOLOR,
134 DT_BGCOLOR_SET,
135 DT_EXTRADATA,
136
137 DT_DEC_FUNCTION,
138 DT_ENC_FUNCTION,
139
140 DT_LAST,
141 };
142
143
144 typedef struct _DMC64EncDecOp
145 {
146 int type;
147 size_t offs;
148 int bank;
149 size_t size;
150 BOOL (*decfunction)(DMC64Image *img, const struct _DMC64EncDecOp *op, const Uint8 *buf, const size_t len);
151 BOOL (*encfunction)(const struct _DMC64EncDecOp *op, Uint8 **buf, size_t *len, const DMC64Image *img);
152 } DMC64EncDecOp;
153
154
155 typedef struct _DMC64ImageFormat
156 {
157 int type;
158 char *fext;
159 char *name;
160 size_t addr; // Loading address (0 if no loading address)
161 size_t size; // Size, including loading address. Only used in encoding, if even there (0 if no static size)
162 int (*probe)(const Uint8 *buf, const size_t len, const struct _DMC64ImageFormat *fmt);
163 int (*decode)(DMC64Image *img, const Uint8 *buf, const size_t len, const struct _DMC64ImageFormat *fmt);
164 int (*encode)(DMC64Image *img, Uint8 **buf, size_t *len, const struct _DMC64ImageFormat *fmt);
165 int (*convertFrom)(DMImage *, const DMC64Image *, const BOOL doubleMC);
166 int (*convertTo)(DMImage *, DMC64Image *);
167
168 int nencdecOps;
169 DMC64EncDecOp encdecOps[16];
170 } DMC64ImageFormat;
171
172
173 extern const size_t dmC64DefaultSizes[DT_LAST];
174 extern DMColor dmC64Palette[C64_NCOLORS];
175 extern const DMC64ImageFormat dmC64ImageFormats[];
176 extern const int ndmC64ImageFormats;
177
178
179 char * dmC64GetImageTypeString(char *buf, const size_t len, const int type);
180 int dmC64ConvertCSDataToImage(DMImage *img, int xoffs, int yoffs, const Uint8 *inBuf, int width, int height, BOOL multicolor, int *colors);
181
182 int dmC64DecodeGenericBMP(DMC64Image *img, const Uint8 *buf, const size_t len, const DMC64ImageFormat *fmt);
183 int dmC64EncodeGenericBMP(Uint8 **pbuf, size_t *plen, const DMC64Image *img, const DMC64ImageFormat *fmt);
184 int dmC64ConvertGenericBMP2Image(DMImage *dst, const DMC64Image *src, const BOOL doubleMC);
185
186 int dmC64ConvertBMP2Image(DMImage **pdst, const DMC64Image *src, const DMC64ImageFormat *fmt, const BOOL doubleMC);
187 int dmC64ProbeBMP(const Uint8 *buf, const size_t len, const DMC64ImageFormat **fmt);
188 int dmC64DecodeBMP(DMC64Image *img, const Uint8 *buf, const size_t len, const size_t probeOffs, const size_t loadOffs, const DMC64ImageFormat **fmt, const DMC64ImageFormat *forced);
189
190
191 #ifdef __cplusplus
192 }
193 #endif
194
195 #endif // LIB64GFX_H