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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997, 1998, 1999, 2000, 2001 Sam Lantinga
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4
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5 This library is free software; you can redistribute it and/or
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6 modify it under the terms of the GNU Library General Public
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7 License as published by the Free Software Foundation; either
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8 version 2 of the License, or (at your option) any later version.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Library General Public License for more details.
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14
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15 You should have received a copy of the GNU Library General Public
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16 License along with this library; if not, write to the Free
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17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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18
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19 Sam Lantinga
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20 slouken@devolution.com
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21 */
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22
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23 #ifdef SAVE_RCSID
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24 static char rcsid =
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25 "@(#) $Id$";
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26 #endif
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27
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28 /* General (mostly internal) pixel/color manipulation routines for SDL */
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29
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30 #include <stdio.h>
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31 #include <stdlib.h>
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32 #include <string.h>
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33
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34 #include "SDL_error.h"
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35 #include "SDL_endian.h"
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36 #include "SDL_video.h"
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37 #include "SDL_sysvideo.h"
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38 #include "SDL_blit.h"
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39 #include "SDL_pixels_c.h"
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40 #include "SDL_RLEaccel_c.h"
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41
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42 /* Helper functions */
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43 /*
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44 * Allocate a pixel format structure and fill it according to the given info.
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45 */
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46 SDL_PixelFormat *SDL_AllocFormat(int bpp,
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47 Uint32 Rmask, Uint32 Gmask, Uint32 Bmask, Uint32 Amask)
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48 {
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49 SDL_PixelFormat *format;
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50 Uint32 mask;
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51
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52 /* Allocate an empty pixel format structure */
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53 format = malloc(sizeof(*format));
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54 if ( format == NULL ) {
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55 SDL_OutOfMemory();
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56 return(NULL);
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57 }
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58 memset(format, 0, sizeof(*format));
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59 format->alpha = SDL_ALPHA_OPAQUE;
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60
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61 /* Set up the format */
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62 format->BitsPerPixel = bpp;
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63 format->BytesPerPixel = (bpp+7)/8;
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64 switch (bpp) {
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65 case 1:
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66 /* Create the 2 color black-white palette */
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67 format->palette = (SDL_Palette *)malloc(
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68 sizeof(SDL_Palette));
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69 if ( format->palette == NULL ) {
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70 SDL_FreeFormat(format);
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71 SDL_OutOfMemory();
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72 return(NULL);
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73 }
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74 (format->palette)->ncolors = 2;
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75 (format->palette)->colors = (SDL_Color *)malloc(
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76 (format->palette)->ncolors*sizeof(SDL_Color));
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77 if ( (format->palette)->colors == NULL ) {
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78 SDL_FreeFormat(format);
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79 SDL_OutOfMemory();
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80 return(NULL);
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81 }
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82 format->palette->colors[0].r = 0xFF;
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83 format->palette->colors[0].g = 0xFF;
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84 format->palette->colors[0].b = 0xFF;
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85 format->palette->colors[1].r = 0x00;
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86 format->palette->colors[1].g = 0x00;
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87 format->palette->colors[1].b = 0x00;
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88 format->Rloss = 8;
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89 format->Gloss = 8;
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90 format->Bloss = 8;
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91 format->Aloss = 8;
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92 format->Rshift = 0;
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93 format->Gshift = 0;
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94 format->Bshift = 0;
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95 format->Ashift = 0;
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96 format->Rmask = 0;
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97 format->Gmask = 0;
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98 format->Bmask = 0;
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99 format->Amask = 0;
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100 break;
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101
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102 case 4:
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103 /* Create the 16 color VGA palette */
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104 format->palette = (SDL_Palette *)malloc(
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105 sizeof(SDL_Palette));
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106 if ( format->palette == NULL ) {
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107 SDL_FreeFormat(format);
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108 SDL_OutOfMemory();
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109 return(NULL);
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110 }
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111 (format->palette)->ncolors = 16;
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112 (format->palette)->colors = (SDL_Color *)malloc(
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113 (format->palette)->ncolors*sizeof(SDL_Color));
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114 if ( (format->palette)->colors == NULL ) {
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115 SDL_FreeFormat(format);
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116 SDL_OutOfMemory();
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117 return(NULL);
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118 }
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119 /* Punt for now, will this ever be used? */
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120 memset((format->palette)->colors, 0,
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121 (format->palette)->ncolors*sizeof(SDL_Color));
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122
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123 /* Palettized formats have no mask info */
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124 format->Rloss = 8;
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125 format->Gloss = 8;
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126 format->Bloss = 8;
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127 format->Aloss = 8;
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128 format->Rshift = 0;
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129 format->Gshift = 0;
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130 format->Bshift = 0;
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131 format->Ashift = 0;
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132 format->Rmask = 0;
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133 format->Gmask = 0;
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134 format->Bmask = 0;
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135 format->Amask = 0;
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136 break;
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137
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138 case 8:
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139 /* Create an empty 256 color palette */
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140 format->palette = (SDL_Palette *)malloc(
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141 sizeof(SDL_Palette));
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142 if ( format->palette == NULL ) {
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143 SDL_FreeFormat(format);
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144 SDL_OutOfMemory();
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145 return(NULL);
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146 }
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147 (format->palette)->ncolors = 256;
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148 (format->palette)->colors = (SDL_Color *)malloc(
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149 (format->palette)->ncolors*sizeof(SDL_Color));
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150 if ( (format->palette)->colors == NULL ) {
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151 SDL_FreeFormat(format);
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152 SDL_OutOfMemory();
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153 return(NULL);
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154 }
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155 memset((format->palette)->colors, 0,
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156 (format->palette)->ncolors*sizeof(SDL_Color));
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157
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158 /* Palettized formats have no mask info */
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159 format->Rloss = 8;
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160 format->Gloss = 8;
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161 format->Bloss = 8;
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162 format->Aloss = 8;
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163 format->Rshift = 0;
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164 format->Gshift = 0;
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165 format->Bshift = 0;
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166 format->Ashift = 0;
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167 format->Rmask = 0;
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168 format->Gmask = 0;
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169 format->Bmask = 0;
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170 format->Amask = 0;
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171 break;
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172
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173 default:
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174 /* No palette, just packed pixel info */
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175 format->palette = NULL;
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176 format->Rshift = 0;
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177 format->Rloss = 8;
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178 if ( Rmask ) {
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179 for ( mask = Rmask; !(mask&0x01); mask >>= 1 )
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180 ++format->Rshift;
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181 for ( ; (mask&0x01); mask >>= 1 )
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182 --format->Rloss;
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183 }
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184 format->Gshift = 0;
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185 format->Gloss = 8;
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186 if ( Gmask ) {
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187 for ( mask = Gmask; !(mask&0x01); mask >>= 1 )
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188 ++format->Gshift;
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189 for ( ; (mask&0x01); mask >>= 1 )
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190 --format->Gloss;
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191 }
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192 format->Bshift = 0;
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193 format->Bloss = 8;
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194 if ( Bmask ) {
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195 for ( mask = Bmask; !(mask&0x01); mask >>= 1 )
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196 ++format->Bshift;
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197 for ( ; (mask&0x01); mask >>= 1 )
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198 --format->Bloss;
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199 }
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200 format->Ashift = 0;
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201 format->Aloss = 8;
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202 if ( Amask ) {
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203 for ( mask = Amask; !(mask&0x01); mask >>= 1 )
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204 ++format->Ashift;
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205 for ( ; (mask&0x01); mask >>= 1 )
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206 --format->Aloss;
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207 }
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208 format->Rmask = Rmask;
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209 format->Gmask = Gmask;
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210 format->Bmask = Bmask;
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211 format->Amask = Amask;
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212 break;
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213 }
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214 /* Calculate some standard bitmasks, if necessary
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215 * Note: This could conflict with an alpha mask, if given.
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216 */
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217 if ( (bpp > 8) && !format->Rmask && !format->Gmask && !format->Bmask ) {
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218 /* R-G-B */
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219 if ( bpp > 24 )
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220 bpp = 24;
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221 format->Rloss = 8-(bpp/3);
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222 format->Gloss = 8-(bpp/3)-(bpp%3);
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223 format->Bloss = 8-(bpp/3);
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224 format->Rshift = ((bpp/3)+(bpp%3))+(bpp/3);
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225 format->Gshift = (bpp/3);
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226 format->Bshift = 0;
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227 format->Rmask = ((0xFF>>format->Rloss)<<format->Rshift);
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228 format->Gmask = ((0xFF>>format->Gloss)<<format->Gshift);
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229 format->Bmask = ((0xFF>>format->Bloss)<<format->Bshift);
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230 }
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231 return(format);
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232 }
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233 SDL_PixelFormat *SDL_ReallocFormat(SDL_Surface *surface, int bpp,
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234 Uint32 Rmask, Uint32 Gmask, Uint32 Bmask, Uint32 Amask)
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235 {
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236 if ( surface->format ) {
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237 SDL_FreeFormat(surface->format);
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238 SDL_FormatChanged(surface);
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239 }
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240 surface->format = SDL_AllocFormat(bpp, Rmask, Gmask, Bmask, Amask);
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241 return surface->format;
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242 }
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243
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244 /*
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245 * Change any previous mappings from/to the new surface format
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246 */
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247 void SDL_FormatChanged(SDL_Surface *surface)
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248 {
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249 surface->format_version++;
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250 SDL_InvalidateMap(surface->map);
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251 }
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252 /*
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253 * Free a previously allocated format structure
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254 */
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255 void SDL_FreeFormat(SDL_PixelFormat *format)
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256 {
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257 if ( format ) {
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258 if ( format->palette ) {
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259 if ( format->palette->colors ) {
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260 free(format->palette->colors);
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261 }
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262 free(format->palette);
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263 }
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264 free(format);
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265 }
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266 }
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267 /*
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268 * Calculate an 8-bit (3 red, 3 green, 2 blue) dithered palette of colors
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269 */
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270 void SDL_DitherColors(SDL_Color *colors, int bpp)
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271 {
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272 int i;
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273 if(bpp != 8)
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274 return; /* only 8bpp supported right now */
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275
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276 for(i = 0; i < 256; i++) {
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277 int r, g, b;
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278 /* map each bit field to the full [0, 255] interval,
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279 so 0 is mapped to (0, 0, 0) and 255 to (255, 255, 255) */
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280 r = i & 0xe0;
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281 r |= r >> 3 | r >> 6;
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282 colors[i].r = r;
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283 g = (i << 3) & 0xe0;
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284 g |= g >> 3 | g >> 6;
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285 colors[i].g = g;
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286 b = i & 0x3;
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287 b |= b << 2;
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288 b |= b << 4;
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289 colors[i].b = b;
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290 }
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291 }
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292 /*
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293 * Calculate the pad-aligned scanline width of a surface
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294 */
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295 Uint16 SDL_CalculatePitch(SDL_Surface *surface)
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296 {
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297 Uint16 pitch;
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298
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299 /* Surface should be 4-byte aligned for speed */
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300 pitch = surface->w*surface->format->BytesPerPixel;
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301 switch (surface->format->BitsPerPixel) {
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302 case 1:
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303 pitch = (pitch+7)/8;
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304 break;
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305 case 4:
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306 pitch = (pitch+1)/2;
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307 break;
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308 default:
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309 break;
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310 }
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311 pitch = (pitch + 3) & ~3; /* 4-byte aligning */
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312 return(pitch);
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313 }
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314 /*
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315 * Match an RGB value to a particular palette index
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316 */
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317 Uint8 SDL_FindColor(SDL_Palette *pal, Uint8 r, Uint8 g, Uint8 b)
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318 {
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319 /* Do colorspace distance matching */
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320 unsigned int smallest;
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321 unsigned int distance;
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322 int rd, gd, bd;
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323 int i;
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324 Uint8 pixel=0;
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325
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326 smallest = ~0;
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327 for ( i=0; i<pal->ncolors; ++i ) {
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328 rd = pal->colors[i].r - r;
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329 gd = pal->colors[i].g - g;
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330 bd = pal->colors[i].b - b;
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331 distance = (rd*rd)+(gd*gd)+(bd*bd);
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332 if ( distance < smallest ) {
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333 pixel = i;
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334 if ( distance == 0 ) { /* Perfect match! */
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335 break;
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336 }
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337 smallest = distance;
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338 }
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339 }
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340 return(pixel);
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341 }
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342
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343 /* Find the opaque pixel value corresponding to an RGB triple */
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344 Uint32 SDL_MapRGB(SDL_PixelFormat *format, Uint8 r, Uint8 g, Uint8 b)
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345 {
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346 if ( format->palette == NULL ) {
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347 return (r >> format->Rloss) << format->Rshift
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348 | (g >> format->Gloss) << format->Gshift
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349 | (b >> format->Bloss) << format->Bshift
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350 | format->Amask;
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351 } else {
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352 return SDL_FindColor(format->palette, r, g, b);
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353 }
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354 }
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355
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356 /* Find the pixel value corresponding to an RGBA quadruple */
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357 Uint32 SDL_MapRGBA(SDL_PixelFormat *format, Uint8 r, Uint8 g, Uint8 b, Uint8 a)
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358 {
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359 if ( format->palette == NULL ) {
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360 return (r >> format->Rloss) << format->Rshift
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361 | (g >> format->Gloss) << format->Gshift
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362 | (b >> format->Bloss) << format->Bshift
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363 | ((a >> format->Aloss) << format->Ashift & format->Amask);
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364 } else {
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365 return SDL_FindColor(format->palette, r, g, b);
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366 }
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367 }
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368
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369 void SDL_GetRGBA(Uint32 pixel, SDL_PixelFormat *fmt,
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370 Uint8 *r, Uint8 *g, Uint8 *b, Uint8 *a)
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371 {
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372 if ( fmt->palette == NULL ) {
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373 /*
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374 * This makes sure that the result is mapped to the
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375 * interval [0..255], and the maximum value for each
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376 * component is 255. This is important to make sure
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377 * that white is indeed reported as (255, 255, 255),
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378 * and that opaque alpha is 255.
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379 * This only works for RGB bit fields at least 4 bit
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380 * wide, which is almost always the case.
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381 */
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382 unsigned rv, gv, bv, av;
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383 rv = (pixel & fmt->Rmask) >> fmt->Rshift;
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384 *r = (rv << fmt->Rloss) + (rv >> (8 - fmt->Rloss));
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385 gv = (pixel & fmt->Gmask) >> fmt->Gshift;
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386 *g = (gv << fmt->Gloss) + (gv >> (8 - fmt->Gloss));
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387 bv = (pixel & fmt->Bmask) >> fmt->Bshift;
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388 *b = (bv << fmt->Bloss) + (bv >> (8 - fmt->Bloss));
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389 if(fmt->Amask) {
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390 av = (pixel & fmt->Amask) >> fmt->Ashift;
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391 *a = (av << fmt->Aloss) + (av >> (8 - fmt->Aloss));
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392 } else
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393 *a = SDL_ALPHA_OPAQUE;
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394 } else {
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395 *r = fmt->palette->colors[pixel].r;
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396 *g = fmt->palette->colors[pixel].g;
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397 *b = fmt->palette->colors[pixel].b;
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398 *a = SDL_ALPHA_OPAQUE;
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399 }
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400 }
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401
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402 void SDL_GetRGB(Uint32 pixel, SDL_PixelFormat *fmt, Uint8 *r,Uint8 *g,Uint8 *b)
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403 {
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404 if ( fmt->palette == NULL ) {
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405 /* the note for SDL_GetRGBA above applies here too */
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406 unsigned rv, gv, bv;
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407 rv = (pixel & fmt->Rmask) >> fmt->Rshift;
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408 *r = (rv << fmt->Rloss) + (rv >> (8 - fmt->Rloss));
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|
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409 gv = (pixel & fmt->Gmask) >> fmt->Gshift;
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|
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410 *g = (gv << fmt->Gloss) + (gv >> (8 - fmt->Gloss));
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|
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411 bv = (pixel & fmt->Bmask) >> fmt->Bshift;
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412 *b = (bv << fmt->Bloss) + (bv >> (8 - fmt->Bloss));
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|
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413 } else {
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|
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414 *r = fmt->palette->colors[pixel].r;
|
|
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415 *g = fmt->palette->colors[pixel].g;
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416 *b = fmt->palette->colors[pixel].b;
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|
|
417 }
|
|
|
418 }
|
|
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419
|
|
|
420 /* Apply gamma to a set of colors - this is easy. :) */
|
|
|
421 void SDL_ApplyGamma(Uint16 *gamma, SDL_Color *colors, SDL_Color *output,
|
|
|
422 int ncolors)
|
|
|
423 {
|
|
|
424 int i;
|
|
|
425
|
|
|
426 for ( i=0; i<ncolors; ++i ) {
|
|
|
427 output[i].r = gamma[0*256 + colors[i].r] >> 8;
|
|
|
428 output[i].g = gamma[1*256 + colors[i].g] >> 8;
|
|
|
429 output[i].b = gamma[2*256 + colors[i].b] >> 8;
|
|
|
430 }
|
|
|
431 }
|
|
|
432
|
|
|
433 /* Map from Palette to Palette */
|
|
|
434 static Uint8 *Map1to1(SDL_Palette *src, SDL_Palette *dst, int *identical)
|
|
|
435 {
|
|
|
436 Uint8 *map;
|
|
|
437 int i;
|
|
|
438
|
|
|
439 if ( identical ) {
|
|
|
440 if ( src->ncolors <= dst->ncolors ) {
|
|
|
441 /* If an identical palette, no need to map */
|
|
|
442 if ( memcmp(src->colors, dst->colors, src->ncolors*
|
|
|
443 sizeof(SDL_Color)) == 0 ) {
|
|
|
444 *identical = 1;
|
|
|
445 return(NULL);
|
|
|
446 }
|
|
|
447 }
|
|
|
448 *identical = 0;
|
|
|
449 }
|
|
|
450 map = (Uint8 *)malloc(src->ncolors);
|
|
|
451 if ( map == NULL ) {
|
|
|
452 SDL_OutOfMemory();
|
|
|
453 return(NULL);
|
|
|
454 }
|
|
|
455 for ( i=0; i<src->ncolors; ++i ) {
|
|
|
456 map[i] = SDL_FindColor(dst,
|
|
|
457 src->colors[i].r, src->colors[i].g, src->colors[i].b);
|
|
|
458 }
|
|
|
459 return(map);
|
|
|
460 }
|
|
|
461 /* Map from Palette to BitField */
|
|
|
462 static Uint8 *Map1toN(SDL_Palette *src, SDL_PixelFormat *dst)
|
|
|
463 {
|
|
|
464 Uint8 *map;
|
|
|
465 int i;
|
|
|
466 int bpp;
|
|
50
|
467 unsigned alpha;
|
|
0
|
468
|
|
|
469 bpp = ((dst->BytesPerPixel == 3) ? 4 : dst->BytesPerPixel);
|
|
|
470 map = (Uint8 *)malloc(src->ncolors*bpp);
|
|
|
471 if ( map == NULL ) {
|
|
|
472 SDL_OutOfMemory();
|
|
|
473 return(NULL);
|
|
|
474 }
|
|
|
475
|
|
50
|
476 alpha = dst->Amask ? SDL_ALPHA_OPAQUE : 0;
|
|
0
|
477 /* We memory copy to the pixel map so the endianness is preserved */
|
|
|
478 for ( i=0; i<src->ncolors; ++i ) {
|
|
|
479 ASSEMBLE_RGBA(&map[i*bpp], dst->BytesPerPixel, dst,
|
|
|
480 src->colors[i].r, src->colors[i].g,
|
|
50
|
481 src->colors[i].b, alpha);
|
|
0
|
482 }
|
|
|
483 return(map);
|
|
|
484 }
|
|
|
485 /* Map from BitField to Dithered-Palette to Palette */
|
|
|
486 static Uint8 *MapNto1(SDL_PixelFormat *src, SDL_Palette *dst, int *identical)
|
|
|
487 {
|
|
|
488 /* Generate a 256 color dither palette */
|
|
|
489 SDL_Palette dithered;
|
|
|
490 SDL_Color colors[256];
|
|
|
491
|
|
|
492 dithered.ncolors = 256;
|
|
|
493 SDL_DitherColors(colors, 8);
|
|
|
494 dithered.colors = colors;
|
|
|
495 return(Map1to1(&dithered, dst, identical));
|
|
|
496 }
|
|
|
497
|
|
|
498 SDL_BlitMap *SDL_AllocBlitMap(void)
|
|
|
499 {
|
|
|
500 SDL_BlitMap *map;
|
|
|
501
|
|
|
502 /* Allocate the empty map */
|
|
|
503 map = (SDL_BlitMap *)malloc(sizeof(*map));
|
|
|
504 if ( map == NULL ) {
|
|
|
505 SDL_OutOfMemory();
|
|
|
506 return(NULL);
|
|
|
507 }
|
|
|
508 memset(map, 0, sizeof(*map));
|
|
|
509
|
|
|
510 /* Allocate the software blit data */
|
|
|
511 map->sw_data = (struct private_swaccel *)malloc(sizeof(*map->sw_data));
|
|
|
512 if ( map->sw_data == NULL ) {
|
|
|
513 SDL_FreeBlitMap(map);
|
|
|
514 SDL_OutOfMemory();
|
|
|
515 return(NULL);
|
|
|
516 }
|
|
|
517 memset(map->sw_data, 0, sizeof(*map->sw_data));
|
|
|
518
|
|
|
519 /* It's ready to go */
|
|
|
520 return(map);
|
|
|
521 }
|
|
|
522 void SDL_InvalidateMap(SDL_BlitMap *map)
|
|
|
523 {
|
|
|
524 if ( ! map ) {
|
|
|
525 return;
|
|
|
526 }
|
|
|
527 map->dst = NULL;
|
|
|
528 map->format_version = (unsigned int)-1;
|
|
|
529 if ( map->table ) {
|
|
|
530 free(map->table);
|
|
|
531 map->table = NULL;
|
|
|
532 }
|
|
|
533 }
|
|
|
534 int SDL_MapSurface (SDL_Surface *src, SDL_Surface *dst)
|
|
|
535 {
|
|
|
536 SDL_PixelFormat *srcfmt;
|
|
|
537 SDL_PixelFormat *dstfmt;
|
|
|
538 SDL_BlitMap *map;
|
|
|
539
|
|
|
540 /* Clear out any previous mapping */
|
|
|
541 map = src->map;
|
|
|
542 if ( (src->flags & SDL_RLEACCEL) == SDL_RLEACCEL ) {
|
|
|
543 SDL_UnRLESurface(src, 1);
|
|
|
544 }
|
|
|
545 SDL_InvalidateMap(map);
|
|
|
546
|
|
|
547 /* Figure out what kind of mapping we're doing */
|
|
|
548 map->identity = 0;
|
|
|
549 srcfmt = src->format;
|
|
|
550 dstfmt = dst->format;
|
|
|
551 switch (srcfmt->BytesPerPixel) {
|
|
|
552 case 1:
|
|
|
553 switch (dstfmt->BytesPerPixel) {
|
|
|
554 case 1:
|
|
|
555 /* Palette --> Palette */
|
|
|
556 /* If both SDL_HWSURFACE, assume have same palette */
|
|
|
557 if ( ((src->flags & SDL_HWSURFACE) == SDL_HWSURFACE) &&
|
|
|
558 ((dst->flags & SDL_HWSURFACE) == SDL_HWSURFACE) ) {
|
|
|
559 map->identity = 1;
|
|
|
560 } else {
|
|
|
561 map->table = Map1to1(srcfmt->palette,
|
|
|
562 dstfmt->palette, &map->identity);
|
|
|
563 }
|
|
|
564 if ( ! map->identity ) {
|
|
|
565 if ( map->table == NULL ) {
|
|
|
566 return(-1);
|
|
|
567 }
|
|
|
568 }
|
|
|
569 if (srcfmt->BitsPerPixel!=dstfmt->BitsPerPixel)
|
|
|
570 map->identity = 0;
|
|
|
571 break;
|
|
|
572
|
|
|
573 default:
|
|
|
574 /* Palette --> BitField */
|
|
|
575 map->table = Map1toN(srcfmt->palette, dstfmt);
|
|
|
576 if ( map->table == NULL ) {
|
|
|
577 return(-1);
|
|
|
578 }
|
|
|
579 break;
|
|
|
580 }
|
|
|
581 break;
|
|
|
582 default:
|
|
|
583 switch (dstfmt->BytesPerPixel) {
|
|
|
584 case 1:
|
|
|
585 /* BitField --> Palette */
|
|
|
586 map->table = MapNto1(srcfmt,
|
|
|
587 dstfmt->palette, &map->identity);
|
|
|
588 if ( ! map->identity ) {
|
|
|
589 if ( map->table == NULL ) {
|
|
|
590 return(-1);
|
|
|
591 }
|
|
|
592 }
|
|
|
593 map->identity = 0; /* Don't optimize to copy */
|
|
|
594 break;
|
|
|
595 default:
|
|
|
596 /* BitField --> BitField */
|
|
|
597 if ( FORMAT_EQUAL(srcfmt, dstfmt) )
|
|
|
598 map->identity = 1;
|
|
|
599 break;
|
|
|
600 }
|
|
|
601 break;
|
|
|
602 }
|
|
|
603
|
|
|
604 map->dst = dst;
|
|
|
605 map->format_version = dst->format_version;
|
|
|
606
|
|
|
607 /* Choose your blitters wisely */
|
|
|
608 return(SDL_CalculateBlit(src));
|
|
|
609 }
|
|
|
610 void SDL_FreeBlitMap(SDL_BlitMap *map)
|
|
|
611 {
|
|
|
612 if ( map ) {
|
|
|
613 SDL_InvalidateMap(map);
|
|
|
614 if ( map->sw_data != NULL ) {
|
|
|
615 free(map->sw_data);
|
|
|
616 }
|
|
|
617 free(map);
|
|
|
618 }
|
|
|
619 }
|
