Mercurial > sdl-ios-xcode
annotate src/SDL_compat.c @ 1668:4da1ee79c9af SDL-1.3
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author | Sam Lantinga <slouken@libsdl.org> |
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date | Mon, 29 May 2006 04:04:35 +0000 |
parents | 1fddae038bc8 |
children | 9857d21967bb |
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1 /* |
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2 SDL - Simple DirectMedia Layer |
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3 Copyright (C) 1997-2006 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 Lesser General Public |
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7 License as published by the Free Software Foundation; either |
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8 version 2.1 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 Lesser 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 Lesser General Public |
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16 License along with this library; if not, write to the Free Software |
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
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18 |
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19 Sam Lantinga |
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20 slouken@libsdl.org |
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21 */ |
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22 #include "SDL_config.h" |
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23 |
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24 /* This file contains functions for backwards compatibility with SDL 1.2 */ |
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25 |
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26 #include "SDL.h" |
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27 |
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28 #include "video/SDL_sysvideo.h" |
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29 |
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30 |
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31 static SDL_WindowID window; |
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32 static char *wm_title; |
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33 |
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34 char * |
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35 SDL_AudioDriverName(char *namebuf, int maxlen) |
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36 { |
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37 const char *name = SDL_GetCurrentAudioDriver(); |
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38 if (name) { |
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39 SDL_strlcpy(namebuf, name, maxlen); |
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40 return namebuf; |
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41 } |
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42 return NULL; |
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43 } |
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44 |
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45 char * |
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46 SDL_VideoDriverName(char *namebuf, int maxlen) |
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47 { |
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48 const char *name = SDL_GetCurrentVideoDriver(); |
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49 if (name) { |
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50 SDL_strlcpy(namebuf, name, maxlen); |
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51 return namebuf; |
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52 } |
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53 return NULL; |
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54 } |
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55 |
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56 int |
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57 SDL_VideoModeOK(int width, int height, int bpp, Uint32 flags) |
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58 { |
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59 int i, actual_bpp = 0; |
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60 |
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61 if (!SDL_GetVideoDevice()) { |
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62 return 0; |
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63 } |
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64 |
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65 if (!(flags & SDL_FULLSCREEN)) { |
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66 return SDL_BITSPERPIXEL(SDL_GetDesktopDisplayMode()->format); |
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67 } |
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68 |
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69 for (i = 0; i < SDL_GetNumDisplayModes(); ++i) { |
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70 const SDL_DisplayMode *mode = SDL_GetDisplayMode(i); |
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71 if (!mode->w || !mode->h || (width == mode->w && height == mode->h)) { |
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72 if (!mode->format) { |
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73 return bpp; |
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74 } |
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75 if (SDL_BITSPERPIXEL(mode->format) >= bpp) { |
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76 actual_bpp = SDL_BITSPERPIXEL(mode->format); |
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77 } |
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78 } |
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79 } |
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80 return actual_bpp; |
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81 } |
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82 |
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83 SDL_Rect ** |
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84 SDL_ListModes(SDL_PixelFormat * format, Uint32 flags) |
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85 { |
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86 int i, nmodes; |
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87 SDL_Rect **modes; |
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88 |
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89 if (!SDL_GetVideoDevice()) { |
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90 return NULL; |
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91 } |
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92 |
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93 if (!(flags & SDL_FULLSCREEN)) { |
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94 return (SDL_Rect **) (-1); |
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95 } |
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96 |
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97 /* Memory leak, but this is a compatibility function, who cares? */ |
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98 nmodes = 0; |
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99 for (i = 0; i < SDL_GetNumDisplayModes(); ++i) { |
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100 const SDL_DisplayMode *mode = SDL_GetDisplayMode(i); |
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101 if (!mode->w || !mode->h) { |
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102 return (SDL_Rect **) (-1); |
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103 } |
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104 if (SDL_BITSPERPIXEL(mode->format) != format->BitsPerPixel) { |
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105 continue; |
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106 } |
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107 if (nmodes > 0 && modes[nmodes - 1]->w == mode->w |
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108 && modes[nmodes - 1]->h == mode->h) { |
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109 continue; |
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110 } |
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111 |
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112 modes = SDL_realloc(modes, (nmodes + 2) * sizeof(*modes)); |
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113 if (!modes) { |
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114 return NULL; |
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115 } |
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116 modes[nmodes] = (SDL_Rect *) SDL_malloc(sizeof(SDL_Rect)); |
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117 if (!modes[nmodes]) { |
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118 return NULL; |
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119 } |
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120 modes[nmodes]->x = 0; |
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121 modes[nmodes]->y = 0; |
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122 modes[nmodes]->w = mode->w; |
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123 modes[nmodes]->h = mode->h; |
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124 ++nmodes; |
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125 } |
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126 if (modes) { |
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127 modes[nmodes] = NULL; |
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128 } |
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129 return modes; |
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130 } |
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131 |
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132 SDL_Surface * |
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133 SDL_SetVideoMode(int width, int height, int bpp, Uint32 flags) |
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134 { |
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135 SDL_DisplayMode mode; |
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136 int i; |
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137 Uint32 window_flags; |
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138 Uint32 desktop_format; |
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139 Uint32 desired_format; |
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140 |
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141 if (!SDL_GetVideoDevice()) { |
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142 if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_NOPARACHUTE) < 0) { |
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143 return NULL; |
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144 } |
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145 } |
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146 |
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147 /* Destroy existing window */ |
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148 SDL_DestroyWindow(window); |
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149 |
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150 /* Create a new window */ |
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151 window_flags = SDL_WINDOW_SHOWN; |
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152 if (flags & SDL_FULLSCREEN) { |
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153 window_flags |= SDL_WINDOW_FULLSCREEN; |
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154 } |
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155 if (flags & SDL_OPENGL) { |
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156 window_flags |= SDL_WINDOW_OPENGL; |
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157 } |
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158 if (flags & SDL_RESIZABLE) { |
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159 window_flags |= SDL_WINDOW_RESIZABLE; |
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160 } |
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161 if (flags & SDL_NOFRAME) { |
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162 window_flags |= SDL_WINDOW_BORDERLESS; |
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163 } |
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164 window = SDL_CreateWindow(wm_title, 0, 0, width, height, window_flags); |
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165 if (!window) { |
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166 return NULL; |
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167 } |
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168 |
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169 /* Set up the desired display mode */ |
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170 desktop_format = SDL_GetDesktopDisplayMode()->format; |
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171 if ((bpp == SDL_BITSPERPIXEL(desktop_format)) || |
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172 (desktop_format && (flags & SDL_ANYFORMAT))) { |
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173 desired_format = desktop_format; |
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174 } else { |
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175 switch (bpp) { |
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176 case 8: |
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177 desired_format = SDL_PixelFormat_Index8; |
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178 break; |
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179 case 15: |
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180 desired_format = SDL_PixelFormat_RGB555; |
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181 break; |
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182 case 16: |
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183 desired_format = SDL_PixelFormat_RGB565; |
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184 break; |
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185 case 24: |
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186 desired_format = SDL_PixelFormat_RGB24; |
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187 break; |
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188 case 32: |
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189 desired_format = SDL_PixelFormat_RGB888; |
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190 break; |
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191 default: |
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192 SDL_SetError("Unsupported bpp in SDL_SetVideoMode()"); |
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193 return NULL; |
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194 } |
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195 } |
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196 mode.format = desired_format; |
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197 mode.w = width; |
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198 mode.h = height; |
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199 mode.refresh_rate = 0; |
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200 |
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201 /* Set the desired display mode */ |
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202 if (flags & SDL_FULLSCREEN) { |
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203 if (!SDL_GetClosestDisplayMode(&mode, &mode)) { |
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204 return NULL; |
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205 } |
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206 } else { |
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207 mode = *SDL_GetDesktopDisplayMode(); |
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208 } |
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209 if (SDL_SetDisplayMode(&mode) < 0) { |
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210 return NULL; |
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211 } |
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212 |
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213 /* Create the display surface */ |
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214 return SDL_CreateWindowSurface(window, desired_format, flags); |
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215 } |
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216 |
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217 SDL_Surface * |
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218 SDL_GetVideoSurface(void) |
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219 { |
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220 SDL_VideoDevice *_this = SDL_GetVideoDevice(); |
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221 |
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222 return SDL_VideoSurface; |
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223 } |
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224 |
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225 void |
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226 SDL_WM_SetCaption(const char *title, const char *icon) |
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227 { |
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228 if (wm_title) { |
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229 SDL_free(wm_title); |
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230 } else { |
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231 wm_title = SDL_strdup(title); |
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232 } |
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233 SDL_SetWindowTitle(window, wm_title); |
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234 } |
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235 |
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236 void |
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237 SDL_WM_GetCaption(char **title, char **icon) |
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238 { |
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239 if (title) { |
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240 *title = wm_title; |
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241 } |
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242 if (icon) { |
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243 *icon = ""; |
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244 } |
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245 } |
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246 |
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247 void |
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248 SDL_WM_SetIcon(SDL_Surface * icon, Uint8 * mask) |
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249 { |
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250 /* FIXME */ |
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251 } |
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252 |
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253 int |
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254 SDL_WM_IconifyWindow(void) |
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255 { |
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256 SDL_MinimizeWindow(window); |
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257 } |
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258 |
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259 int |
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260 SDL_WM_ToggleFullScreen(SDL_Surface * surface) |
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261 { |
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262 return 0; |
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263 } |
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264 |
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265 SDL_GrabMode |
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266 SDL_WM_GrabInput(SDL_GrabMode mode) |
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267 { |
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268 if (mode != SDL_GRAB_QUERY) { |
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269 SDL_SetWindowGrab(window, mode); |
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270 } |
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271 return (SDL_GrabMode) SDL_GetWindowGrab(window); |
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272 } |
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273 |
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274 Uint8 |
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275 SDL_GetAppState(void) |
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276 { |
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277 Uint8 state = 0; |
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278 Uint32 flags = 0; |
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279 |
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280 flags = SDL_GetWindowFlags(window); |
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281 if ((flags & SDL_WINDOW_SHOWN) && !(flags & SDL_WINDOW_MINIMIZED)) { |
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282 state |= SDL_APPACTIVE; |
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283 } |
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284 if (flags & SDL_WINDOW_KEYBOARD_FOCUS) { |
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285 state |= SDL_APPINPUTFOCUS; |
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286 } |
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287 if (flags & SDL_WINDOW_MOUSE_FOCUS) { |
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288 state |= SDL_APPMOUSEFOCUS; |
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289 } |
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290 return state; |
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291 } |
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292 |
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293 const SDL_version * |
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294 SDL_Linked_Version(void) |
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295 { |
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296 static SDL_version version; |
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297 SDL_VERSION(&version); |
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298 return &version; |
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299 } |
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300 |
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301 int |
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302 SDL_SetPalette(SDL_Surface * surface, int flags, SDL_Color * colors, |
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303 int firstcolor, int ncolors) |
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304 { |
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305 SDL_SetColors(surface, colors, firstcolor, ncolors); |
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306 } |
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307 |
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308 int |
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309 SDL_GetWMInfo(SDL_SysWMinfo * info) |
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310 { |
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311 return SDL_GetWindowWMInfo(window, info); |
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312 } |
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313 |
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314 /* vi: set ts=4 sw=4 expandtab: */ |