annotate tools/lib64gfx.h @ 2265:48b48251610a

Refactor how the image "mode/type" is handled. It is still not perfect for our purposes, but better now.
author Matti Hamalainen <ccr@tnsp.org>
date Mon, 17 Jun 2019 02:03:35 +0300
parents adb0480f6ebd
children ecc17b2e129e
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1 /*
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2 * Functions for reading and converting various restricted
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3 * C64/etc and/or indexed/paletted graphics formats.
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4 * Programmed and designed by Matti 'ccr' Hamalainen
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5 * (C) Copyright 2012-2019 Tecnic Software productions (TNSP)
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6 *
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7 * Please read file 'COPYING' for information on license and distribution.
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8 */
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9 #ifndef LIB64GFX_H
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10 #define LIB64GFX_H 1
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11
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12 #include "libgfx.h"
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13 #include "dmgrowbuf.h"
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14
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15 #ifdef __cplusplus
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16 extern "C" {
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17 #endif
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18
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20 // Max defines
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21 #define D64_MAX_EXTRA_DATA 16
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22 #define D64_MAX_EXTRA_INFO 64
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23
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24
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25 // Bitmap constants
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26 #define D64_SCR_WIDTH 320
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27 #define D64_SCR_HEIGHT 200
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28 #define D64_SCR_CH_WIDTH (D64_SCR_WIDTH/8)
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29 #define D64_SCR_CH_HEIGHT (D64_SCR_HEIGHT/8)
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32 // C64 video screen pixel aspect ratio on PAL
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33 #define D64_SCR_PAR_XY (0.9365f)
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34
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35 // Sprite constants
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36 #define D64_SPR_WIDTH_PX 24
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37 #define D64_SPR_HEIGHT_PX 21
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38 #define D64_SPR_WIDTH_UT (D64_SPR_WIDTH_PX / 8) // bytes
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39 #define D64_SPR_HEIGHT_UT D64_SPR_HEIGHT_PX
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40 #define D64_SPR_SIZE ((D64_SPR_WIDTH_UT * D64_SPR_HEIGHT_UT) + 1)
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41
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42 // Character constants
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43 #define D64_CHR_WIDTH_PX 8
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44 #define D64_CHR_HEIGHT_PX 8
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45 #define D64_CHR_WIDTH_UT 1 // bytes
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46 #define D64_CHR_HEIGHT_UT 8 // lines
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47 #define D64_CHR_SIZE (D64_CHR_WIDTH_UT * D64_CHR_HEIGHT_UT)
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48
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49 // Etc.
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50 #define D64_NCOLORS 16
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51 #define D64_VIDBANK_SIZE (16*1024)
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52 #define D64_MAX_SPRITES 1024
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53 #define D64_MAX_CHARS 256
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54
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55
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56 // Different supported flags/modes
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57 enum
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58 {
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59 D64_FMT_HIRES = 0x0001, // Hi-res
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60 D64_FMT_MC = 0x0002, // MultiColor
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61 D64_FMT_ECM = 0x0003, // ECM mode (applies only to character mode)
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62 D64_FMT_MODE_MASK = 0x000f,
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63
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64 D64_FMT_ILACE = 0x0010, // Interlace
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65 D64_FMT_FLI = 0x0020, // FLI
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66 D64_FMT_CHAR = 0x0040, // Character mode
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67 D64_FMT_BORDER = 0x0080, // Uses border area
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68 };
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69
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70
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71 // Different types of interlace
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72 enum
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73 {
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74 D64_ILACE_NONE = 0x0000, // Not set (invalid for interlaced images)
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75 D64_ILACE_RES = 0x0001, // Interlace doubles resolution
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76 D64_ILACE_COLOR = 0x0002, // Uses color mixing
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77 };
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78
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79
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80 // Different types of interlace
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81 enum
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82 {
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83 D64_FLI_8 = 8,
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84 };
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85
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86
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87 // Charmode screen memory configuration
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88 enum
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89 {
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90 D64_CHCFG_SCREEN, // Use screen memory
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91 D64_CHCFG_LINEAR = 1, // Generate linear pattern so that first line
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92 // of chars is 0-39, second 40-79, up to 255.
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93 };
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95
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96 // Various extra settings (see DMC64Image::extraInfo[])
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97 enum
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98 {
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99 D64_EI_MODE = 0, // Actual mode, if the format supports several
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100
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101 D64_EI_CHAR_CASE,
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102 D64_EI_CHAR_CUSTOM,
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103
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104 D64_EI_FLI_TYPE,
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105 D64_EI_ILACE_TYPE,
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106 };
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107
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108
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109 // Image <-> bitmap conversion dithering
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110 enum
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111 {
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112 D64_DITH_NONE = 0, // No dithering
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113 };
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114
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115
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116 // Different enc/dec operation types (op->type)
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117 enum
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118 {
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119 DO_COPY, // Perform copy between memory (from/to offset) and subject
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120 DO_SET_MEM, // Set subject value or fill subject memory area to byte value from offset
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121 DO_SET_OP, // Like above but value from op->offs field instead
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123 DO_SET_MEM_HI, // Copy one byte value like DO_SET_MEM, but high nibble only
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124 DO_SET_MEM_LO, // Like above, but low nibble
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125
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126 DO_FUNC, // Execute specified decoding / encoding function
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127
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128 DO_CHAR_CFG, // Set character mode configuration
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129
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130 DO_LAST, // Last opcode, end processing
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131 };
407
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132
512
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133
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134 // "Subjects" of operations (op->subject)
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135 enum
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136 {
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137 DS_COLOR_RAM,
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138 DS_BITMAP_RAM,
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139 DS_SCREEN_RAM,
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140 DS_EXTRA_DATA,
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141 DS_CHAR_DATA,
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142
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143 DS_D020,
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144 DS_BGCOL,
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145 DS_D021,
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146 DS_D022,
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147 DS_D023,
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148 DS_D024,
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149
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150 DS_EXTRA_INFO,
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151
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152 DS_LAST
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153 };
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154
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155
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156 // Operation flags (op->flags)
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157 enum
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158 {
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159 DF_NORMAL = 0xffff,
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160 DF_DECODE = 0x0001,
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161 DF_ENCODE = 0x0002,
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162 };
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163
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164
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165 typedef struct
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166 {
2201
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167 char *name;
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168 char *desc;
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169 DMColor colors[D64_NCOLORS];
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170 } DMC64Palette;
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171
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172
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173 typedef struct
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174 {
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175 int dither; // Dither mode (D64_DITH_*)
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176 BOOL aspect; // Correct pixel aspect ratio?
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177
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178 DMPalette *pal; // Use this palette
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179 DMC64Palette *cpal; // If ^pal == NULL, use this C64 palette
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180 } DMC64ImageConvSpec;
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181
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182
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183 typedef struct
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184 {
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185 Uint8 *data;
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186 size_t size;
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187 } DMC64MemBlock;
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188
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189
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190 typedef struct
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191 {
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192 BOOL multicolor, xexpand, yexpand;
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193 int color, xc, yc;
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194 Uint8 data[D64_SPR_HEIGHT_UT][D64_SPR_WIDTH_UT];
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195 } DMC64Sprite;
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196
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197
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198 typedef struct _DMC64ImageCommonFormat DMC64ImageCommonFormat;
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199 typedef struct _DMC64ImageFormat DMC64ImageFormat;
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200
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201
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202 typedef struct _DMC64Image
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203 {
1947
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204 DMC64ImageCommonFormat *fmt;
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205 int nblocks; // Number of internal blocks used
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206
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207 // Bitmaps, color RAM, screen, etc. blocks * nblocks
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208 // Not all of them may be allocated
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209 DMC64MemBlock
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210 *color,
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211 *bitmap,
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212 *screen,
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213 *charData;
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214
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215 // Other standard colours
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216 Uint8 d020, bgcolor, d022, d023, d024;
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217
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218 // Extra data areas used by some formats,
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219 // for example raster colours might be stored
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220 DMC64MemBlock extraData[D64_MAX_EXTRA_DATA];
1376
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221
2139
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222 // Extra information / settings used by some formats,
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223 // for example some PETSCII-type formats.
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224 // See D64_EI_* constants.
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adb0480f6ebd Change DMC64Image::extraInfo[] type from Uint8 to int.
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225 int extraInfo[D64_MAX_EXTRA_INFO];
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226
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227 //DMC64Sprite sprites[D64_MAX_SPRITES];
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228 } DMC64Image;
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229
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230
510
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231 typedef struct _DMC64EncDecOp
407
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232 {
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233 int type; // Operation type (DO_*)
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234 int subject; // Operation "subject" (DS_*)
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235
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diff changeset
236 int offs; // Offset in "memory"
1846
88cef7758303 Implement data block offset in certain DMC64EncDecOps. This allows us to
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237 int bank; // Bank number or extradata index
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238 size_t size; // Size of data (0 for "default")
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239 size_t offs2; // Offset in data-block
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diff changeset
240
2114
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diff changeset
241 int (*decFunction)(const struct _DMC64EncDecOp *op, DMC64Image *img, const DMGrowBuf *buf, const DMC64ImageCommonFormat *fmt);
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242 int (*encFunction)(const struct _DMC64EncDecOp *op, DMGrowBuf *buf, const DMC64Image *img, const DMC64ImageCommonFormat *fmt);
2196
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243
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diff changeset
244 int flags; // Operation flags (DF_*)
510
43ea59887c69 Start work on making C64 formats encoding possible by changing DMDecodeOps
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diff changeset
245 } DMC64EncDecOp;
407
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246
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247
2176
8e6713705786 Reduce number of max enc/dec ops from 64 to 32, this reduces produced binary sizes by 100kB :P
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diff changeset
248 #define D64_MAX_ENCDEC_OPS 32
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249 typedef DMC64EncDecOp DMC64EncDecOpList[D64_MAX_ENCDEC_OPS];
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diff changeset
250
91d1bb571fca Implement common encdec ops lists for sharing oplists between formats that
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diff changeset
251
2129
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diff changeset
252 typedef int (*DMC64GetPixelFunc)(Uint8 *col, const DMC64Image *img, const int rasterX, const int rasterY);
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253
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254
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255 typedef struct _DMC64ImageCommonFormat
1775
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256 {
2265
48b48251610a Refactor how the image "mode/type" is handled. It is still not perfect for
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parents: 2239
diff changeset
257 int mode, // Format mode/type flags, see D64_FMT_*
1935
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diff changeset
258 width, height, // Width and height in pixels
2056
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diff changeset
259 chWidth, chHeight, // Width and height in charblocks
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diff changeset
260 aspectX, aspectY; // Pixel aspectX/Y
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diff changeset
261
2223
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parents: 2222
diff changeset
262 int (*convertFrom)(DMImage *, const DMC64Image *, const DMC64ImageConvSpec *spec);
1931
410679d2fe8a "Enable" the image->c64 bitmap conversion path in gfxconv. It does not work
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263 int (*convertTo)(DMC64Image *, const DMImage *, const DMC64ImageFormat *fmt, const DMC64ImageConvSpec *spec);
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diff changeset
264
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diff changeset
265 DMC64GetPixelFunc getPixel;
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266
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267 DMC64EncDecOpList encdecOps;
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268 } DMC64ImageCommonFormat;
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269
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270
407
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271 typedef struct _DMC64ImageFormat
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272 {
922
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273 char *fext; // Filename extension
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274 char *name; // Format description/name
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275
511
4cdcaeb68b54 Collapse most of the probing functions into one generic probe, as they only
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276 size_t addr; // Loading address (0 if no loading address)
1495
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277 size_t size; // Size, including loading address. Only used in probing and encoding.
924
732787cccca8 Add dimension (w/h) information fields to C64 image format struct.
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278
2265
48b48251610a Refactor how the image "mode/type" is handled. It is still not perfect for
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diff changeset
279 int flags; // DM_FMT_* flags (read/write/broken/etc.), see libgfx.h
1545
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280
1780
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281 int (*probe)(const DMGrowBuf *buf, const DMC64ImageFormat *fmt);
1442
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282
1775
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283 int (*decode)(DMC64Image *img, const DMGrowBuf *buf, const DMC64ImageFormat *fmt);
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284 int (*encode)(DMGrowBuf *buf, const DMC64Image *img, const DMC64ImageFormat *fmt);
1442
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285
1775
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286 DMC64ImageCommonFormat formatDef, *format;
407
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287 } DMC64ImageFormat;
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288
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289
1637
58ef0124394d Add some comments.
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290 //
2148
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291 // Compression types
1637
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292 //
1650
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293 enum
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294 {
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295 DM_COMP_RLE_MARKER = 1, // RLE with a separate marker byte
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296 DM_COMP_RLE_MASK = 2, // RLE that has marker bits and lower part acts as run length
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297 };
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298
2148
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299
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300 // Compression flags
1650
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301 enum
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302 {
1660
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303 DM_RLE_BYTE_RUNS = 0x0001, // Uses one-byte run lengths
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304 DM_RLE_WORD_RUNS = 0x0002, // Uses two-byte (word) run lengths
2148
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305 DM_RLE_RUNS_MASK = 0x000f,
1650
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306
2148
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307 DM_RLE_ORDER_1 = 0x0010, // Order: <marker>, <count/run length>, <data>
487157934904 Clarifications in comments.
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diff changeset
308 DM_RLE_ORDER_2 = 0x0020, // Order: <marker>, <data>, <count/run length>
1650
9233da9de92c Refactor RLE encoding a bit, and add support for 16bit run counts and make things more configurable.
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diff changeset
309 DM_RLE_ORDER_MASK = 0x00f0,
1707
a0986cfd6f9d More consistently use DMGrowBuf in the lib64gfx APIs, and implement
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parents: 1668
diff changeset
310
1786
52e90130453b Add descriptive comments to some of RLE decoder flags that were missing "documentation".
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parents: 1783
diff changeset
311 DM_RLE_BACKWARDS_INPUT = 0x0100, // Input is read backwards
52e90130453b Add descriptive comments to some of RLE decoder flags that were missing "documentation".
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parents: 1783
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312 DM_RLE_BACKWARDS_OUTPUT = 0x0200, // Output is written backwards
52e90130453b Add descriptive comments to some of RLE decoder flags that were missing "documentation".
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parents: 1783
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313 DM_RLE_ZERO_COUNT_MAX = 0x0400, // Zero "count" / run length value is max run (2^8, 2^16)
1720
77a4d8fab5cc Add output buffer cropping to dmFinishRLEBuffers() and the flags and fields to DMGrowBuf.
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parents: 1719
diff changeset
314
77a4d8fab5cc Add output buffer cropping to dmFinishRLEBuffers() and the flags and fields to DMGrowBuf.
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diff changeset
315 DM_OUT_CROP_NONE = 0x0000,
77a4d8fab5cc Add output buffer cropping to dmFinishRLEBuffers() and the flags and fields to DMGrowBuf.
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316 DM_OUT_CROP_START = 0x1000,
77a4d8fab5cc Add output buffer cropping to dmFinishRLEBuffers() and the flags and fields to DMGrowBuf.
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diff changeset
317 DM_OUT_CROP_END = 0x2000,
77a4d8fab5cc Add output buffer cropping to dmFinishRLEBuffers() and the flags and fields to DMGrowBuf.
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diff changeset
318 DM_OUT_CROP_MASK = 0xf000,
1650
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diff changeset
319 };
1505
3265175b24d2 Change the passing of RLE compression/decompression parameters to be in a dedicated struct.
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parents: 1503
diff changeset
320
3265175b24d2 Change the passing of RLE compression/decompression parameters to be in a dedicated struct.
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parents: 1503
diff changeset
321
3265175b24d2 Change the passing of RLE compression/decompression parameters to be in a dedicated struct.
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parents: 1503
diff changeset
322 typedef struct
3265175b24d2 Change the passing of RLE compression/decompression parameters to be in a dedicated struct.
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diff changeset
323 {
1711
4fd94bf558b3 Add function name field to DMCompParams struct and set it in places where we use DMCompParams.
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parents: 1709
diff changeset
324 char *func;
1720
77a4d8fab5cc Add output buffer cropping to dmFinishRLEBuffers() and the flags and fields to DMGrowBuf.
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parents: 1719
diff changeset
325 size_t cropOutLen;
2148
487157934904 Clarifications in comments.
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diff changeset
326 int type; // DM_COMP_*
487157934904 Clarifications in comments.
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diff changeset
327 int flags; //
1720
77a4d8fab5cc Add output buffer cropping to dmFinishRLEBuffers() and the flags and fields to DMGrowBuf.
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parents: 1719
diff changeset
328
1650
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329 Uint8
1660
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330 // DM_COMP_RLE_MARKER mode
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331 rleMarkerB, // Marker byte for byte length runs (if DM_RLE_BYTE_RUNS used)
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332 rleMarkerW, // Marker byte for word length runs (if DM_RLE_WORD_RUNS used)
7555c8803529 More work on improving the generic RLE decoder/encoder.
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diff changeset
333
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diff changeset
334 // DM_COMP_RLE_MASK mode
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diff changeset
335 rleMarkerBits,
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diff changeset
336 rleMarkerMask, // Mask bits for marker: data & rleMarkerMask == rleMarkerBits
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diff changeset
337 rleCountMask; // Mask bits for length: count = data & rleCountMask
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parents: 1650
diff changeset
338
1707
a0986cfd6f9d More consistently use DMGrowBuf in the lib64gfx APIs, and implement
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diff changeset
339 unsigned int
1660
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diff changeset
340 // Minimum and maximum run lengths
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diff changeset
341 rleMinCountB,
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diff changeset
342 rleMinCountW,
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diff changeset
343 rleMaxCountB,
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diff changeset
344 rleMaxCountW;
1505
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diff changeset
345 } DMCompParams;
3265175b24d2 Change the passing of RLE compression/decompression parameters to be in a dedicated struct.
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parents: 1503
diff changeset
346
3265175b24d2 Change the passing of RLE compression/decompression parameters to be in a dedicated struct.
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parents: 1503
diff changeset
347
1503
c7b9ef56319b Factor all the c64 file format specific things into lib64fmt.c
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diff changeset
348 //
c7b9ef56319b Factor all the c64 file format specific things into lib64fmt.c
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diff changeset
349 // Global variables
c7b9ef56319b Factor all the c64 file format specific things into lib64fmt.c
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diff changeset
350 //
2175
58fab91830d5 Change default C64 palette system a bit, add two more palettes. These are
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parents: 2148
diff changeset
351 extern DMC64Palette dmC64DefaultPalettes[];
58fab91830d5 Change default C64 palette system a bit, add two more palettes. These are
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parents: 2148
diff changeset
352 extern const int ndmC64DefaultPalettes;
1775
4e4d54135baf Refactor the c64 bitmap format definitions handling to be more flexible. Again.
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diff changeset
353 extern DMC64ImageFormat dmC64ImageFormats[];
407
59244a7ae37f Move c64 utilities to the engine lib, as we benefit from a common framework.
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parents:
diff changeset
354 extern const int ndmC64ImageFormats;
2200
dcd26cdc395e Replace dmC64InitializeFormats() with dmLib64GFXInit() and dmLib64GFXClose().
Matti Hamalainen <ccr@tnsp.org>
parents: 2196
diff changeset
355 extern DMC64ImageFormat **dmC64ImageFormatsSorted;
dcd26cdc395e Replace dmC64InitializeFormats() with dmLib64GFXInit() and dmLib64GFXClose().
Matti Hamalainen <ccr@tnsp.org>
parents: 2196
diff changeset
356
dcd26cdc395e Replace dmC64InitializeFormats() with dmLib64GFXInit() and dmLib64GFXClose().
Matti Hamalainen <ccr@tnsp.org>
parents: 2196
diff changeset
357
dcd26cdc395e Replace dmC64InitializeFormats() with dmLib64GFXInit() and dmLib64GFXClose().
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parents: 2196
diff changeset
358 //
dcd26cdc395e Replace dmC64InitializeFormats() with dmLib64GFXInit() and dmLib64GFXClose().
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parents: 2196
diff changeset
359 // Library init/close
dcd26cdc395e Replace dmC64InitializeFormats() with dmLib64GFXInit() and dmLib64GFXClose().
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parents: 2196
diff changeset
360 //
dcd26cdc395e Replace dmC64InitializeFormats() with dmLib64GFXInit() and dmLib64GFXClose().
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parents: 2196
diff changeset
361 int dmLib64GFXInit(void);
dcd26cdc395e Replace dmC64InitializeFormats() with dmLib64GFXInit() and dmLib64GFXClose().
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parents: 2196
diff changeset
362 void dmLib64GFXClose(void);
407
59244a7ae37f Move c64 utilities to the engine lib, as we benefit from a common framework.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
363
1488
c71b6c5204af Factor the C64 bitmap image format info dump function to lib64gfx and use it from 64vw.
Matti Hamalainen <ccr@tnsp.org>
parents: 1486
diff changeset
364
1503
c7b9ef56319b Factor all the c64 file format specific things into lib64fmt.c
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parents: 1499
diff changeset
365 //
c7b9ef56319b Factor all the c64 file format specific things into lib64fmt.c
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diff changeset
366 // Miscellaneous functions
c7b9ef56319b Factor all the c64 file format specific things into lib64fmt.c
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diff changeset
367 //
1780
5ea4713e9e0f Change c64 format probing API to use DMGrowBuf.
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parents: 1775
diff changeset
368 int dmC64ProbeBMP(const DMGrowBuf *buf, const DMC64ImageFormat **fmt);
1774
88354355b8e1 Move dmC64ProbeBMP() to more logical place in the source.
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parents: 1764
diff changeset
369
2208
90ec1ec89c56 Revamp the palette handling in lib64gfx somewhat, add helper functions to
Matti Hamalainen <ccr@tnsp.org>
parents: 2206
diff changeset
370 int dmC64PaletteFromC64Palette(DMPalette **ppal, const DMC64Palette *cpal, const BOOL mixed);
90ec1ec89c56 Revamp the palette handling in lib64gfx somewhat, add helper functions to
Matti Hamalainen <ccr@tnsp.org>
parents: 2206
diff changeset
371 int dmC64SetImagePalette(DMImage *img, const DMC64ImageConvSpec *spec, const BOOL mixed);
1732
07111a60cd4e Add dmSetMixedColorC64Palette() for setting a 256 entry "mixed color"
Matti Hamalainen <ccr@tnsp.org>
parents: 1726
diff changeset
372
1780
5ea4713e9e0f Change c64 format probing API to use DMGrowBuf.
Matti Hamalainen <ccr@tnsp.org>
parents: 1775
diff changeset
373 BOOL dmCompareAddr16(const DMGrowBuf *buf, const size_t offs, const Uint16 addr);
1588
ca087c0cc9c4 Refactor the c64 format memory handling a bit for more flexibility.
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parents: 1586
diff changeset
374
ca087c0cc9c4 Refactor the c64 format memory handling a bit for more flexibility.
Matti Hamalainen <ccr@tnsp.org>
parents: 1586
diff changeset
375 int dmC64MemBlockAlloc(DMC64MemBlock *blk, const size_t size);
ca087c0cc9c4 Refactor the c64 format memory handling a bit for more flexibility.
Matti Hamalainen <ccr@tnsp.org>
parents: 1586
diff changeset
376 int dmC64MemBlockCopy(DMC64MemBlock *dst, const DMC64MemBlock *src);
ca087c0cc9c4 Refactor the c64 format memory handling a bit for more flexibility.
Matti Hamalainen <ccr@tnsp.org>
parents: 1586
diff changeset
377 void dmC64MemBlockFree(DMC64MemBlock *blk);
ca087c0cc9c4 Refactor the c64 format memory handling a bit for more flexibility.
Matti Hamalainen <ccr@tnsp.org>
parents: 1586
diff changeset
378
2205
3a25e85f0203 Cleanup.
Matti Hamalainen <ccr@tnsp.org>
parents: 2204
diff changeset
379 // C64 bitmap image allocation/freeing
1378
c465860e44ed Make c64 image bank allocation dynamic.
Matti Hamalainen <ccr@tnsp.org>
parents: 1376
diff changeset
380 DMC64Image *dmC64ImageAlloc(const DMC64ImageFormat *fmt);
931
2270d7f3af77 Refactor the DMC64Image handling to be more dynamic, and start
Matti Hamalainen <ccr@tnsp.org>
parents: 926
diff changeset
381 void dmC64ImageFree(DMC64Image *img);
2270d7f3af77 Refactor the DMC64Image handling to be more dynamic, and start
Matti Hamalainen <ccr@tnsp.org>
parents: 926
diff changeset
382
2270d7f3af77 Refactor the DMC64Image handling to be more dynamic, and start
Matti Hamalainen <ccr@tnsp.org>
parents: 926
diff changeset
383
1503
c7b9ef56319b Factor all the c64 file format specific things into lib64fmt.c
Matti Hamalainen <ccr@tnsp.org>
parents: 1499
diff changeset
384 // Encoding and decoding of formats and images
1644
9d9a0e852b3d Reorder some functions.
Matti Hamalainen <ccr@tnsp.org>
parents: 1637
diff changeset
385 int dmC64ConvertCSDataToImage(DMImage *img, int xoffs, int yoffs, const Uint8 *inBuf, int width, int height, BOOL multicolor, int *colors);
9d9a0e852b3d Reorder some functions.
Matti Hamalainen <ccr@tnsp.org>
parents: 1637
diff changeset
386
2205
3a25e85f0203 Cleanup.
Matti Hamalainen <ccr@tnsp.org>
parents: 2204
diff changeset
387 int dmC64ImageGetNumBlocks(const DMC64ImageFormat *fmt);
3a25e85f0203 Cleanup.
Matti Hamalainen <ccr@tnsp.org>
parents: 2204
diff changeset
388
1852
219417325036 Split dmC64GetOpMemBlockAndName() into dmC64GetOpMemBlock() and
Matti Hamalainen <ccr@tnsp.org>
parents: 1846
diff changeset
389 const char *dmC64GetOpSubjectName(const int subject);
2108
5f8f170f8774 Change dmC64GetOpMemBlock() function API.
Matti Hamalainen <ccr@tnsp.org>
parents: 2094
diff changeset
390 const DMC64MemBlock * dmC64GetOpMemBlock(const DMC64Image *img, const int subject, const int bank);
1644
9d9a0e852b3d Reorder some functions.
Matti Hamalainen <ccr@tnsp.org>
parents: 1637
diff changeset
391 int dmC64SanityCheckEncDecOp(const int i, const DMC64EncDecOp *op, const DMC64Image *img);
2109
510ea816d1ff Add helper function dmC64MemBlockAllocSubj().
Matti Hamalainen <ccr@tnsp.org>
parents: 2108
diff changeset
392 int dmC64MemBlockAllocSubj(DMC64Image *img, const int subject, const int bank);
1916
34ba8e2d2dd7 Split dmC64GetOpSize() to dmC64GetSubjectSize() and dmC64GetOpSubjectSize().
Matti Hamalainen <ccr@tnsp.org>
parents: 1859
diff changeset
393
1933
c5a46cb4cce5 Change DMC64ImageFormat parameter of dmC64GetSubjectSize() and
Matti Hamalainen <ccr@tnsp.org>
parents: 1932
diff changeset
394 size_t dmC64GetSubjectSize(const int subject, const DMC64ImageCommonFormat *fmt);
c5a46cb4cce5 Change DMC64ImageFormat parameter of dmC64GetSubjectSize() and
Matti Hamalainen <ccr@tnsp.org>
parents: 1932
diff changeset
395 size_t dmC64GetOpSubjectSize(const DMC64EncDecOp *op, const DMC64ImageCommonFormat *fmt);
1644
9d9a0e852b3d Reorder some functions.
Matti Hamalainen <ccr@tnsp.org>
parents: 1637
diff changeset
396
1442
3773281491c9 Cleanups.
Matti Hamalainen <ccr@tnsp.org>
parents: 1426
diff changeset
397
1707
a0986cfd6f9d More consistently use DMGrowBuf in the lib64gfx APIs, and implement
Matti Hamalainen <ccr@tnsp.org>
parents: 1668
diff changeset
398 int dmC64DecodeGenericBMP(DMC64Image *img, const DMGrowBuf *buf, const DMC64ImageFormat *fmt);
1499
32640e1934d5 Simplify some encoding bits.
Matti Hamalainen <ccr@tnsp.org>
parents: 1495
diff changeset
399 int dmC64EncodeGenericBMP(const BOOL allocate, DMGrowBuf *buf, const DMC64Image *img, const DMC64ImageFormat *fmt);
537
32d9e67da189 Rename generic probing function to match the style of other lib64gfx functions.
Matti Hamalainen <ccr@tnsp.org>
parents: 534
diff changeset
400
2223
5477e792def3 Remove useless DMC64ImageFormat parameter from some conversion functions.
Matti Hamalainen <ccr@tnsp.org>
parents: 2222
diff changeset
401 int dmC64ConvertBMP2Image(DMImage **pdst, const DMC64Image *src, const DMC64ImageConvSpec *spec);
1931
410679d2fe8a "Enable" the image->c64 bitmap conversion path in gfxconv. It does not work
Matti Hamalainen <ccr@tnsp.org>
parents: 1923
diff changeset
402 int dmC64ConvertImage2BMP(DMC64Image **pdst, const DMImage *src, const DMC64ImageFormat *fmt, const DMC64ImageConvSpec *spec);
1446
948b32bd67ef Cosmetics.
Matti Hamalainen <ccr@tnsp.org>
parents: 1442
diff changeset
403
1707
a0986cfd6f9d More consistently use DMGrowBuf in the lib64gfx APIs, and implement
Matti Hamalainen <ccr@tnsp.org>
parents: 1668
diff changeset
404 int dmC64DecodeBMP(DMC64Image **img, const DMGrowBuf *buf, const size_t probeOffs, const size_t loadOffs, const DMC64ImageFormat **fmt, const DMC64ImageFormat *forced);
1467
32203356c652 Add some new functions that are mostly just stubs and not working tho.
Matti Hamalainen <ccr@tnsp.org>
parents: 1465
diff changeset
405 int dmC64EncodeBMP(DMGrowBuf *buf, const DMC64Image *img, const DMC64ImageFormat *fmt);
419
936bc27a79d6 Modularize some functions to lib64gfx, fix bitmap -> image conversion,
Matti Hamalainen <ccr@tnsp.org>
parents: 418
diff changeset
406
2223
5477e792def3 Remove useless DMC64ImageFormat parameter from some conversion functions.
Matti Hamalainen <ccr@tnsp.org>
parents: 2222
diff changeset
407 int dmC64ConvertGenericBMP2Image(DMImage *dst, const DMC64Image *src, const DMC64ImageConvSpec *spec);
1931
410679d2fe8a "Enable" the image->c64 bitmap conversion path in gfxconv. It does not work
Matti Hamalainen <ccr@tnsp.org>
parents: 1923
diff changeset
408 int dmC64ConvertGenericImage2BMP(DMC64Image *dst, const DMImage *src, const DMC64ImageFormat *fmt, const DMC64ImageConvSpec *spec);
1446
948b32bd67ef Cosmetics.
Matti Hamalainen <ccr@tnsp.org>
parents: 1442
diff changeset
409
1707
a0986cfd6f9d More consistently use DMGrowBuf in the lib64gfx APIs, and implement
Matti Hamalainen <ccr@tnsp.org>
parents: 1668
diff changeset
410 void dmGenericRLEAnalyze(const DMGrowBuf *buf, DMCompParams *cfg);
1503
c7b9ef56319b Factor all the c64 file format specific things into lib64fmt.c
Matti Hamalainen <ccr@tnsp.org>
parents: 1499
diff changeset
411
1713
0a9110b4d036 Add few RLE helper functions.
Matti Hamalainen <ccr@tnsp.org>
parents: 1711
diff changeset
412 void dmSetupRLEBuffers(DMGrowBuf *dst, DMGrowBuf *src, const DMCompParams *cfg);
0a9110b4d036 Add few RLE helper functions.
Matti Hamalainen <ccr@tnsp.org>
parents: 1711
diff changeset
413 void dmFinishRLEBuffers(DMGrowBuf *dst, DMGrowBuf *src, const DMCompParams *cfg);
1775
4e4d54135baf Refactor the c64 bitmap format definitions handling to be more flexible. Again.
Matti Hamalainen <ccr@tnsp.org>
parents: 1774
diff changeset
414
1713
0a9110b4d036 Add few RLE helper functions.
Matti Hamalainen <ccr@tnsp.org>
parents: 1711
diff changeset
415 int dmGenericRLEOutputRun(DMGrowBuf *dst, const DMCompParams *cfg, const Uint8 data, const unsigned int count);
1719
8f47bd264458 Make dmEncodeGenericRLESequence() a public function.
Matti Hamalainen <ccr@tnsp.org>
parents: 1713
diff changeset
416 int dmEncodeGenericRLESequence(DMGrowBuf *dst, const Uint8 data, const unsigned int count, const DMCompParams *cfg);
8f47bd264458 Make dmEncodeGenericRLESequence() a public function.
Matti Hamalainen <ccr@tnsp.org>
parents: 1713
diff changeset
417
1707
a0986cfd6f9d More consistently use DMGrowBuf in the lib64gfx APIs, and implement
Matti Hamalainen <ccr@tnsp.org>
parents: 1668
diff changeset
418 int dmDecodeGenericRLE(DMGrowBuf *dst, const DMGrowBuf *src, const DMCompParams *cfg);
a0986cfd6f9d More consistently use DMGrowBuf in the lib64gfx APIs, and implement
Matti Hamalainen <ccr@tnsp.org>
parents: 1668
diff changeset
419 int dmDecodeGenericRLEAlloc(DMGrowBuf *dst, const DMGrowBuf *src, const DMCompParams *cfg);
1503
c7b9ef56319b Factor all the c64 file format specific things into lib64fmt.c
Matti Hamalainen <ccr@tnsp.org>
parents: 1499
diff changeset
420
1707
a0986cfd6f9d More consistently use DMGrowBuf in the lib64gfx APIs, and implement
Matti Hamalainen <ccr@tnsp.org>
parents: 1668
diff changeset
421 int dmEncodeGenericRLE(DMGrowBuf *dst, const DMGrowBuf *src, const DMCompParams *cfg);
a0986cfd6f9d More consistently use DMGrowBuf in the lib64gfx APIs, and implement
Matti Hamalainen <ccr@tnsp.org>
parents: 1668
diff changeset
422 int dmEncodeGenericRLEAlloc(DMGrowBuf *dst, const DMGrowBuf *src, const DMCompParams *cfg);
1503
c7b9ef56319b Factor all the c64 file format specific things into lib64fmt.c
Matti Hamalainen <ccr@tnsp.org>
parents: 1499
diff changeset
423
c7b9ef56319b Factor all the c64 file format specific things into lib64fmt.c
Matti Hamalainen <ccr@tnsp.org>
parents: 1499
diff changeset
424
c7b9ef56319b Factor all the c64 file format specific things into lib64fmt.c
Matti Hamalainen <ccr@tnsp.org>
parents: 1499
diff changeset
425 //
2129
2129d4ac6f45 Refactor c64 image rendering completely to be more flexible.
Matti Hamalainen <ccr@tnsp.org>
parents: 2125
diff changeset
426 // Macros for defining variables used in getpixel functions
2129d4ac6f45 Refactor c64 image rendering completely to be more flexible.
Matti Hamalainen <ccr@tnsp.org>
parents: 2125
diff changeset
427 //
2129d4ac6f45 Refactor c64 image rendering completely to be more flexible.
Matti Hamalainen <ccr@tnsp.org>
parents: 2125
diff changeset
428 #define DM_C64_GENERIC_SC_PIXEL_DEFS(ximg) \
2129d4ac6f45 Refactor c64 image rendering completely to be more flexible.
Matti Hamalainen <ccr@tnsp.org>
parents: 2125
diff changeset
429 const int \
2129d4ac6f45 Refactor c64 image rendering completely to be more flexible.
Matti Hamalainen <ccr@tnsp.org>
parents: 2125
diff changeset
430 x = rasterX / 8, \
2129d4ac6f45 Refactor c64 image rendering completely to be more flexible.
Matti Hamalainen <ccr@tnsp.org>
parents: 2125
diff changeset
431 y = rasterY / 8, \
2129d4ac6f45 Refactor c64 image rendering completely to be more flexible.
Matti Hamalainen <ccr@tnsp.org>
parents: 2125
diff changeset
432 yoffs = y * ximg->fmt->chWidth, \
2129d4ac6f45 Refactor c64 image rendering completely to be more flexible.
Matti Hamalainen <ccr@tnsp.org>
parents: 2125
diff changeset
433 bmoffs = yoffs * 8 + (rasterY & 7) + (x * 8), \
2129d4ac6f45 Refactor c64 image rendering completely to be more flexible.
Matti Hamalainen <ccr@tnsp.org>
parents: 2125
diff changeset
434 scroffs = yoffs + x, \
2129d4ac6f45 Refactor c64 image rendering completely to be more flexible.
Matti Hamalainen <ccr@tnsp.org>
parents: 2125
diff changeset
435 vshift = 7 - (rasterX & 7);
2129d4ac6f45 Refactor c64 image rendering completely to be more flexible.
Matti Hamalainen <ccr@tnsp.org>
parents: 2125
diff changeset
436
2129d4ac6f45 Refactor c64 image rendering completely to be more flexible.
Matti Hamalainen <ccr@tnsp.org>
parents: 2125
diff changeset
437
2129d4ac6f45 Refactor c64 image rendering completely to be more flexible.
Matti Hamalainen <ccr@tnsp.org>
parents: 2125
diff changeset
438 #define DM_C64_GENERIC_MC_PIXEL_DEFS(ximg) \
2129d4ac6f45 Refactor c64 image rendering completely to be more flexible.
Matti Hamalainen <ccr@tnsp.org>
parents: 2125
diff changeset
439 const int \
2129d4ac6f45 Refactor c64 image rendering completely to be more flexible.
Matti Hamalainen <ccr@tnsp.org>
parents: 2125
diff changeset
440 x = rasterX / 4, \
2129d4ac6f45 Refactor c64 image rendering completely to be more flexible.
Matti Hamalainen <ccr@tnsp.org>
parents: 2125
diff changeset
441 y = rasterY / 8, \
2129d4ac6f45 Refactor c64 image rendering completely to be more flexible.
Matti Hamalainen <ccr@tnsp.org>
parents: 2125
diff changeset
442 yoffs = y * (ximg)->fmt->chWidth, \
2129d4ac6f45 Refactor c64 image rendering completely to be more flexible.
Matti Hamalainen <ccr@tnsp.org>
parents: 2125
diff changeset
443 bmoffs = yoffs * 8 + (rasterY & 7) + (x * 8), \
2129d4ac6f45 Refactor c64 image rendering completely to be more flexible.
Matti Hamalainen <ccr@tnsp.org>
parents: 2125
diff changeset
444 scroffs = yoffs + x, \
2129d4ac6f45 Refactor c64 image rendering completely to be more flexible.
Matti Hamalainen <ccr@tnsp.org>
parents: 2125
diff changeset
445 vshift = 6 - ((rasterX * 2) & 6);
2129d4ac6f45 Refactor c64 image rendering completely to be more flexible.
Matti Hamalainen <ccr@tnsp.org>
parents: 2125
diff changeset
446
2129d4ac6f45 Refactor c64 image rendering completely to be more flexible.
Matti Hamalainen <ccr@tnsp.org>
parents: 2125
diff changeset
447
2132
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
448 #define DM_C64_GENERIC_CHAR_PIXEL(ximg) \
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
449 const int \
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
450 x = rasterX / 8, \
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
451 y = rasterY / 8, \
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
452 scroffs = y * (ximg)->fmt->chWidth + x; \
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
453
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
454
2129
2129d4ac6f45 Refactor c64 image rendering completely to be more flexible.
Matti Hamalainen <ccr@tnsp.org>
parents: 2125
diff changeset
455 //
1503
c7b9ef56319b Factor all the c64 file format specific things into lib64fmt.c
Matti Hamalainen <ccr@tnsp.org>
parents: 1499
diff changeset
456 // Inline helper functions for pixel format decoding
c7b9ef56319b Factor all the c64 file format specific things into lib64fmt.c
Matti Hamalainen <ccr@tnsp.org>
parents: 1499
diff changeset
457 //
2129
2129d4ac6f45 Refactor c64 image rendering completely to be more flexible.
Matti Hamalainen <ccr@tnsp.org>
parents: 2125
diff changeset
458 static inline int dmC64GetGenericSCPixel(Uint8 *col,
1503
c7b9ef56319b Factor all the c64 file format specific things into lib64fmt.c
Matti Hamalainen <ccr@tnsp.org>
parents: 1499
diff changeset
459 const DMC64Image *img, const int bmoffs, const int scroffs,
2129
2129d4ac6f45 Refactor c64 image rendering completely to be more flexible.
Matti Hamalainen <ccr@tnsp.org>
parents: 2125
diff changeset
460 const int vshift, const int vbank, const int bitmap)
1503
c7b9ef56319b Factor all the c64 file format specific things into lib64fmt.c
Matti Hamalainen <ccr@tnsp.org>
parents: 1499
diff changeset
461 {
2129
2129d4ac6f45 Refactor c64 image rendering completely to be more flexible.
Matti Hamalainen <ccr@tnsp.org>
parents: 2125
diff changeset
462 if ((img->bitmap[bitmap].data[bmoffs] >> vshift) & 1)
2129d4ac6f45 Refactor c64 image rendering completely to be more flexible.
Matti Hamalainen <ccr@tnsp.org>
parents: 2125
diff changeset
463 *col = img->screen[vbank].data[scroffs] >> 4;
1503
c7b9ef56319b Factor all the c64 file format specific things into lib64fmt.c
Matti Hamalainen <ccr@tnsp.org>
parents: 1499
diff changeset
464 else
2129
2129d4ac6f45 Refactor c64 image rendering completely to be more flexible.
Matti Hamalainen <ccr@tnsp.org>
parents: 2125
diff changeset
465 *col = img->screen[vbank].data[scroffs] & 15;
2129d4ac6f45 Refactor c64 image rendering completely to be more flexible.
Matti Hamalainen <ccr@tnsp.org>
parents: 2125
diff changeset
466
2129d4ac6f45 Refactor c64 image rendering completely to be more flexible.
Matti Hamalainen <ccr@tnsp.org>
parents: 2125
diff changeset
467 return DMERR_OK;
1503
c7b9ef56319b Factor all the c64 file format specific things into lib64fmt.c
Matti Hamalainen <ccr@tnsp.org>
parents: 1499
diff changeset
468 }
c7b9ef56319b Factor all the c64 file format specific things into lib64fmt.c
Matti Hamalainen <ccr@tnsp.org>
parents: 1499
diff changeset
469
c7b9ef56319b Factor all the c64 file format specific things into lib64fmt.c
Matti Hamalainen <ccr@tnsp.org>
parents: 1499
diff changeset
470
2129
2129d4ac6f45 Refactor c64 image rendering completely to be more flexible.
Matti Hamalainen <ccr@tnsp.org>
parents: 2125
diff changeset
471 static inline int dmC64GetGenericMCPixel(Uint8 *col,
1503
c7b9ef56319b Factor all the c64 file format specific things into lib64fmt.c
Matti Hamalainen <ccr@tnsp.org>
parents: 1499
diff changeset
472 const DMC64Image *img, const int bmoffs, const int scroffs,
2129
2129d4ac6f45 Refactor c64 image rendering completely to be more flexible.
Matti Hamalainen <ccr@tnsp.org>
parents: 2125
diff changeset
473 const int vshift, const int vbank, const int bitmap,
2129d4ac6f45 Refactor c64 image rendering completely to be more flexible.
Matti Hamalainen <ccr@tnsp.org>
parents: 2125
diff changeset
474 const int cbank, const int bgcolor)
1503
c7b9ef56319b Factor all the c64 file format specific things into lib64fmt.c
Matti Hamalainen <ccr@tnsp.org>
parents: 1499
diff changeset
475 {
2129
2129d4ac6f45 Refactor c64 image rendering completely to be more flexible.
Matti Hamalainen <ccr@tnsp.org>
parents: 2125
diff changeset
476 switch ((img->bitmap[bitmap].data[bmoffs] >> vshift) & 3)
2129d4ac6f45 Refactor c64 image rendering completely to be more flexible.
Matti Hamalainen <ccr@tnsp.org>
parents: 2125
diff changeset
477 {
2222
75b5bb490f38 Add & 15 to deeper helper functions and remove it from unnecessary places.
Matti Hamalainen <ccr@tnsp.org>
parents: 2208
diff changeset
478 case 0: *col = bgcolor & 15; break;
2129
2129d4ac6f45 Refactor c64 image rendering completely to be more flexible.
Matti Hamalainen <ccr@tnsp.org>
parents: 2125
diff changeset
479 case 1: *col = img->screen[vbank].data[scroffs] >> 4; break;
2129d4ac6f45 Refactor c64 image rendering completely to be more flexible.
Matti Hamalainen <ccr@tnsp.org>
parents: 2125
diff changeset
480 case 2: *col = img->screen[vbank].data[scroffs] & 15; break;
2129d4ac6f45 Refactor c64 image rendering completely to be more flexible.
Matti Hamalainen <ccr@tnsp.org>
parents: 2125
diff changeset
481 default: *col = img->color[cbank].data[scroffs] & 15; break;
2129d4ac6f45 Refactor c64 image rendering completely to be more flexible.
Matti Hamalainen <ccr@tnsp.org>
parents: 2125
diff changeset
482 }
1503
c7b9ef56319b Factor all the c64 file format specific things into lib64fmt.c
Matti Hamalainen <ccr@tnsp.org>
parents: 1499
diff changeset
483
2129
2129d4ac6f45 Refactor c64 image rendering completely to be more flexible.
Matti Hamalainen <ccr@tnsp.org>
parents: 2125
diff changeset
484 return DMERR_OK;
1503
c7b9ef56319b Factor all the c64 file format specific things into lib64fmt.c
Matti Hamalainen <ccr@tnsp.org>
parents: 1499
diff changeset
485 }
c7b9ef56319b Factor all the c64 file format specific things into lib64fmt.c
Matti Hamalainen <ccr@tnsp.org>
parents: 1499
diff changeset
486
435
e4a3f183e463 Modularize some more.
Matti Hamalainen <ccr@tnsp.org>
parents: 419
diff changeset
487
2132
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
488 static inline int dmC64GetGenericCharSCPixel(Uint8 *col,
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
489 const DMC64Image *img, const int scroffs, const int rasterX,
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
490 const int chrbank, const size_t chroffs, const int chr,
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
491 const int cbank, const int bgcolor)
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
492 {
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
493 if (chroffs >= img->charData[chrbank].size)
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
494 {
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
495 return dmError(DMERR_INVALID_DATA,
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
496 "Character map index #%d out of bounds for char ROM data.\n",
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
497 chr);
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
498 }
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
499
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
500 const int vshift = 7 - (rasterX & 7);
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
501 if ((img->charData[chrbank].data[chroffs] >> vshift) & 1)
2222
75b5bb490f38 Add & 15 to deeper helper functions and remove it from unnecessary places.
Matti Hamalainen <ccr@tnsp.org>
parents: 2208
diff changeset
502 *col = img->color[cbank].data[scroffs] & 15;
2132
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
503 else
2222
75b5bb490f38 Add & 15 to deeper helper functions and remove it from unnecessary places.
Matti Hamalainen <ccr@tnsp.org>
parents: 2208
diff changeset
504 *col = bgcolor & 15;
2132
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
505
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
506 return DMERR_OK;
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
507 }
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
508
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
509
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
510 static inline int dmC64GetGenericCharMCPixel(Uint8 *col,
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
511 const DMC64Image *img, const int scroffs, const int rasterX,
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
512 const int chrbank, const size_t chroffs, const int chr,
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
513 const int cbank, const int bgcolor,
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
514 const int bgd022, const int bgd023)
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
515 {
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
516 if (chroffs >= img->charData[chrbank].size)
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
517 {
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
518 return dmError(DMERR_INVALID_DATA,
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
519 "Character map index #%d out of bounds for char ROM data.\n",
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
520 chr);
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
521 }
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
522
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Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
523 const int ccol = img->color[cbank].data[scroffs];
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
524 if (ccol & 8)
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
525 {
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
526 const int vshift = 6 - (rasterX & 6);
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
527 switch ((img->charData[chrbank].data[chroffs] >> vshift) & 3)
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
528 {
2222
75b5bb490f38 Add & 15 to deeper helper functions and remove it from unnecessary places.
Matti Hamalainen <ccr@tnsp.org>
parents: 2208
diff changeset
529 case 0: *col = bgcolor & 15; break;
75b5bb490f38 Add & 15 to deeper helper functions and remove it from unnecessary places.
Matti Hamalainen <ccr@tnsp.org>
parents: 2208
diff changeset
530 case 1: *col = bgd022 & 15; break;
75b5bb490f38 Add & 15 to deeper helper functions and remove it from unnecessary places.
Matti Hamalainen <ccr@tnsp.org>
parents: 2208
diff changeset
531 case 2: *col = bgd023 & 15; break;
2139
84780a9d8d17 Improve and fix charmap format decoding.
Matti Hamalainen <ccr@tnsp.org>
parents: 2132
diff changeset
532 case 3: *col = ccol & 7;
2132
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
533 }
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
534 }
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
535 else
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
536 {
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
537 const int vshift = 7 - (rasterX & 7);
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
538 if ((img->charData[chrbank].data[chroffs] >> vshift) & 1)
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
539 *col = ccol & 7;
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
540 else
2222
75b5bb490f38 Add & 15 to deeper helper functions and remove it from unnecessary places.
Matti Hamalainen <ccr@tnsp.org>
parents: 2208
diff changeset
541 *col = bgcolor & 15;
2132
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
542 }
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
543
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
544 return DMERR_OK;
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
545 }
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
546
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
547
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
548 static inline int dmC64GetGenericCharECMPixel(Uint8 *col,
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
549 const DMC64Image *img, const int scroffs, const int rasterX,
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
550 const int chrbank, const size_t chroffs, const int chr,
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
551 const int cbank, const int bgcolor,
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
552 const int bgd022, const int bgd023, const int bgd024)
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
553 {
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
554 if (chroffs >= img->charData[0].size)
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
555 {
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
556 return dmError(DMERR_INVALID_DATA,
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
557 "Character map index #%d out of bounds for char ROM data.\n",
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
558 chr);
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
559 }
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
560
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
561 const int vshift = 7 - (rasterX & 7);
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
562 if ((img->charData[chrbank].data[chroffs] >> vshift) & 1)
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
563 *col = img->color[cbank].data[scroffs] & 15;
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
564 else
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
565 switch ((chr >> 6) & 3)
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
566 {
2222
75b5bb490f38 Add & 15 to deeper helper functions and remove it from unnecessary places.
Matti Hamalainen <ccr@tnsp.org>
parents: 2208
diff changeset
567 case 0: *col = bgcolor & 15; break;
75b5bb490f38 Add & 15 to deeper helper functions and remove it from unnecessary places.
Matti Hamalainen <ccr@tnsp.org>
parents: 2208
diff changeset
568 case 1: *col = bgd022 & 15; break;
75b5bb490f38 Add & 15 to deeper helper functions and remove it from unnecessary places.
Matti Hamalainen <ccr@tnsp.org>
parents: 2208
diff changeset
569 case 2: *col = bgd023 & 15; break;
75b5bb490f38 Add & 15 to deeper helper functions and remove it from unnecessary places.
Matti Hamalainen <ccr@tnsp.org>
parents: 2208
diff changeset
570 case 3: *col = bgd024 & 15; break;
2132
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
571 }
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
572
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
573 return DMERR_OK;
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
574 }
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
575
6528a1398e8e Add char map helper functions and use them.
Matti Hamalainen <ccr@tnsp.org>
parents: 2129
diff changeset
576
1591
3cc7b2aadda3 Add inline helper function fmtGetEncDecOp() and use it.
Matti Hamalainen <ccr@tnsp.org>
parents: 1588
diff changeset
577 static inline const DMC64EncDecOp * fmtGetEncDecOp(const DMC64ImageFormat *fmt, const int index)
3cc7b2aadda3 Add inline helper function fmtGetEncDecOp() and use it.
Matti Hamalainen <ccr@tnsp.org>
parents: 1588
diff changeset
578 {
1775
4e4d54135baf Refactor the c64 bitmap format definitions handling to be more flexible. Again.
Matti Hamalainen <ccr@tnsp.org>
parents: 1774
diff changeset
579 return &fmt->format->encdecOps[index];
1591
3cc7b2aadda3 Add inline helper function fmtGetEncDecOp() and use it.
Matti Hamalainen <ccr@tnsp.org>
parents: 1588
diff changeset
580 }
3cc7b2aadda3 Add inline helper function fmtGetEncDecOp() and use it.
Matti Hamalainen <ccr@tnsp.org>
parents: 1588
diff changeset
581
3cc7b2aadda3 Add inline helper function fmtGetEncDecOp() and use it.
Matti Hamalainen <ccr@tnsp.org>
parents: 1588
diff changeset
582
435
e4a3f183e463 Modularize some more.
Matti Hamalainen <ccr@tnsp.org>
parents: 419
diff changeset
583 #ifdef __cplusplus
e4a3f183e463 Modularize some more.
Matti Hamalainen <ccr@tnsp.org>
parents: 419
diff changeset
584 }
e4a3f183e463 Modularize some more.
Matti Hamalainen <ccr@tnsp.org>
parents: 419
diff changeset
585 #endif
e4a3f183e463 Modularize some more.
Matti Hamalainen <ccr@tnsp.org>
parents: 419
diff changeset
586
407
59244a7ae37f Move c64 utilities to the engine lib, as we benefit from a common framework.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
587 #endif // LIB64GFX_H