Mercurial > sdl-ios-xcode
annotate src/SDL_compat.c @ 1680:9488fca10677 SDL-1.3
Dummy video driver works again in high color video modes. Yay!
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Wed, 14 Jun 2006 08:41:13 +0000 |
| parents | 90bf530ced8e |
| children | 80a5e6a4e1e2 |
| rev | line source |
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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_pixels_c.h" |
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29 |
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30 |
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31 static SDL_WindowID SDL_VideoWindow; |
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32 static SDL_TextureID SDL_VideoTexture; |
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33 static SDL_Surface *SDL_VideoSurface; |
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34 static SDL_Surface *SDL_ShadowSurface; |
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35 static SDL_Surface *SDL_PublicSurface; |
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36 static char *wm_title; |
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37 |
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38 char * |
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39 SDL_AudioDriverName(char *namebuf, int maxlen) |
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40 { |
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41 const char *name = SDL_GetCurrentAudioDriver(); |
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42 if (name) { |
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43 SDL_strlcpy(namebuf, name, maxlen); |
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44 return namebuf; |
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45 } |
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46 return NULL; |
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47 } |
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48 |
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49 char * |
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50 SDL_VideoDriverName(char *namebuf, int maxlen) |
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51 { |
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52 const char *name = SDL_GetCurrentVideoDriver(); |
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53 if (name) { |
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54 SDL_strlcpy(namebuf, name, maxlen); |
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55 return namebuf; |
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56 } |
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57 return NULL; |
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58 } |
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59 |
| 1670 | 60 const SDL_VideoInfo * |
| 61 SDL_GetVideoInfo(void) | |
| 62 { | |
| 63 static SDL_VideoInfo info; | |
| 64 | |
| 65 /* Memory leak, compatibility code, who cares? */ | |
| 66 if (!info.vfmt && SDL_GetDesktopDisplayMode()) { | |
| 67 int bpp; | |
| 68 Uint32 Rmask, Gmask, Bmask, Amask; | |
| 69 | |
| 70 SDL_PixelFormatEnumToMasks(SDL_GetDesktopDisplayMode()->format, &bpp, | |
| 71 &Rmask, &Gmask, &Bmask, &Amask); | |
| 72 info.vfmt = SDL_AllocFormat(bpp, Rmask, Gmask, Bmask, Amask); | |
| 73 } | |
| 74 return &info; | |
| 75 } | |
| 76 | |
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77 int |
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78 SDL_VideoModeOK(int width, int height, int bpp, Uint32 flags) |
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79 { |
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80 int i, actual_bpp = 0; |
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81 |
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82 if (!SDL_GetVideoDevice()) { |
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83 return 0; |
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84 } |
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85 |
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86 if (!(flags & SDL_FULLSCREEN)) { |
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87 return SDL_BITSPERPIXEL(SDL_GetDesktopDisplayMode()->format); |
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88 } |
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89 |
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90 for (i = 0; i < SDL_GetNumDisplayModes(); ++i) { |
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91 const SDL_DisplayMode *mode = SDL_GetDisplayMode(i); |
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92 if (!mode->w || !mode->h || (width == mode->w && height == mode->h)) { |
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93 if (!mode->format) { |
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94 return bpp; |
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95 } |
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96 if (SDL_BITSPERPIXEL(mode->format) >= bpp) { |
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97 actual_bpp = SDL_BITSPERPIXEL(mode->format); |
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98 } |
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99 } |
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100 } |
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101 return actual_bpp; |
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102 } |
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103 |
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104 SDL_Rect ** |
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105 SDL_ListModes(SDL_PixelFormat * format, Uint32 flags) |
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106 { |
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107 int i, nmodes; |
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108 SDL_Rect **modes; |
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109 |
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110 if (!SDL_GetVideoDevice()) { |
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111 return NULL; |
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112 } |
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113 |
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114 if (!(flags & SDL_FULLSCREEN)) { |
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115 return (SDL_Rect **) (-1); |
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116 } |
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117 |
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118 /* Memory leak, but this is a compatibility function, who cares? */ |
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119 nmodes = 0; |
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120 for (i = 0; i < SDL_GetNumDisplayModes(); ++i) { |
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121 const SDL_DisplayMode *mode = SDL_GetDisplayMode(i); |
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122 if (!mode->w || !mode->h) { |
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123 return (SDL_Rect **) (-1); |
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124 } |
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125 if (SDL_BITSPERPIXEL(mode->format) != format->BitsPerPixel) { |
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126 continue; |
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127 } |
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128 if (nmodes > 0 && modes[nmodes - 1]->w == mode->w |
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129 && modes[nmodes - 1]->h == mode->h) { |
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130 continue; |
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131 } |
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132 |
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133 modes = SDL_realloc(modes, (nmodes + 2) * sizeof(*modes)); |
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134 if (!modes) { |
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135 return NULL; |
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136 } |
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137 modes[nmodes] = (SDL_Rect *) SDL_malloc(sizeof(SDL_Rect)); |
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138 if (!modes[nmodes]) { |
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139 return NULL; |
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140 } |
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141 modes[nmodes]->x = 0; |
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142 modes[nmodes]->y = 0; |
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143 modes[nmodes]->w = mode->w; |
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144 modes[nmodes]->h = mode->h; |
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145 ++nmodes; |
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146 } |
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147 if (modes) { |
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148 modes[nmodes] = NULL; |
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149 } |
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150 return modes; |
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151 } |
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152 |
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153 static int (*orig_eventfilter) (const SDL_Event * event); |
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154 |
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155 static int |
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156 SDL_CompatEventFilter(const SDL_Event * event) |
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157 { |
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158 SDL_Event fake; |
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159 |
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160 switch (event->type) { |
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161 case SDL_WINDOWEVENT: |
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162 switch (event->window.event) { |
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163 case SDL_WINDOWEVENT_RESIZED: |
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164 fake.type = SDL_VIDEORESIZE; |
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165 fake.resize.w = event->window.data1; |
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166 fake.resize.h = event->window.data2; |
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167 SDL_PushEvent(&fake); |
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168 break; |
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169 case SDL_WINDOWEVENT_MINIMIZED: |
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170 fake.type = SDL_ACTIVEEVENT; |
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171 fake.active.gain = 0; |
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172 fake.active.state = SDL_APPACTIVE; |
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173 SDL_PushEvent(&fake); |
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174 break; |
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175 case SDL_WINDOWEVENT_RESTORED: |
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176 fake.type = SDL_ACTIVEEVENT; |
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177 fake.active.gain = 1; |
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178 fake.active.state = SDL_APPACTIVE; |
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179 SDL_PushEvent(&fake); |
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180 break; |
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181 case SDL_WINDOWEVENT_ENTER: |
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182 fake.type = SDL_ACTIVEEVENT; |
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183 fake.active.gain = 1; |
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184 fake.active.state = SDL_APPMOUSEFOCUS; |
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185 SDL_PushEvent(&fake); |
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186 break; |
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187 case SDL_WINDOWEVENT_LEAVE: |
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188 fake.type = SDL_ACTIVEEVENT; |
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189 fake.active.gain = 0; |
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190 fake.active.state = SDL_APPMOUSEFOCUS; |
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191 SDL_PushEvent(&fake); |
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192 break; |
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193 case SDL_WINDOWEVENT_FOCUS_GAINED: |
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194 fake.type = SDL_ACTIVEEVENT; |
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195 fake.active.gain = 1; |
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196 fake.active.state = SDL_APPINPUTFOCUS; |
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197 SDL_PushEvent(&fake); |
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198 break; |
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199 case SDL_WINDOWEVENT_FOCUS_LOST: |
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200 fake.type = SDL_ACTIVEEVENT; |
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201 fake.active.gain = 1; |
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202 fake.active.state = SDL_APPINPUTFOCUS; |
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203 SDL_PushEvent(&fake); |
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204 break; |
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205 } |
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206 } |
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207 return orig_eventfilter(event); |
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208 } |
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209 |
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210 SDL_Surface * |
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211 SDL_SetVideoMode(int width, int height, int bpp, Uint32 flags) |
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212 { |
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213 int (*filter) (const SDL_Event * event); |
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214 const SDL_DisplayMode *desktop_mode; |
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215 SDL_DisplayMode mode; |
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216 int i; |
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217 Uint32 window_flags; |
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218 Uint32 desktop_format; |
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219 Uint32 desired_format; |
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220 Uint32 texture_format; |
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221 |
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222 if (!SDL_GetVideoDevice()) { |
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223 if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_NOPARACHUTE) < 0) { |
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224 return NULL; |
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225 } |
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226 } |
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227 |
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228 /* Destroy existing window */ |
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229 SDL_PublicSurface = NULL; |
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230 if (SDL_ShadowSurface) { |
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231 SDL_FreeSurface(SDL_ShadowSurface); |
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232 SDL_ShadowSurface = NULL; |
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233 } |
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234 if (SDL_VideoSurface) { |
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235 SDL_FreeSurface(SDL_ShadowSurface); |
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236 SDL_VideoSurface = NULL; |
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237 } |
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238 SDL_DestroyWindow(SDL_VideoWindow); |
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239 |
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240 /* Set up the event filter */ |
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241 filter = SDL_GetEventFilter(); |
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242 if (filter != SDL_CompatEventFilter) { |
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243 orig_eventfilter = filter; |
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244 } |
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245 SDL_SetEventFilter(SDL_CompatEventFilter); |
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246 |
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247 /* Create a new window */ |
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248 window_flags = SDL_WINDOW_SHOWN; |
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249 if (flags & SDL_FULLSCREEN) { |
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250 window_flags |= SDL_WINDOW_FULLSCREEN; |
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251 } |
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252 if (flags & SDL_OPENGL) { |
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253 window_flags |= SDL_WINDOW_OPENGL; |
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254 } |
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255 if (flags & SDL_RESIZABLE) { |
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256 window_flags |= SDL_WINDOW_RESIZABLE; |
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257 } |
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258 if (flags & SDL_NOFRAME) { |
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259 window_flags |= SDL_WINDOW_BORDERLESS; |
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260 } |
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261 SDL_VideoWindow = |
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262 SDL_CreateWindow(wm_title, 0, 0, width, height, window_flags); |
|
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263 if (!SDL_VideoWindow) { |
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264 return NULL; |
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|
265 } |
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266 |
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267 /* Set up the desired display mode */ |
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268 desktop_mode = SDL_GetDesktopDisplayMode(); |
|
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269 desktop_format = desktop_mode->format; |
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270 if (desktop_format && ((flags & SDL_ANYFORMAT) |
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271 || (bpp == SDL_BITSPERPIXEL(desktop_format)))) { |
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272 desired_format = desktop_format; |
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273 } else { |
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274 switch (bpp) { |
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275 case 0: |
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276 if (desktop_format) { |
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277 desired_format = desktop_format; |
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278 } else { |
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279 desired_format = SDL_PixelFormat_RGB888; |
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280 } |
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281 break; |
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282 case 8: |
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283 desired_format = SDL_PixelFormat_Index8; |
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284 break; |
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285 case 15: |
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286 desired_format = SDL_PixelFormat_RGB555; |
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287 break; |
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288 case 16: |
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289 desired_format = SDL_PixelFormat_RGB565; |
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290 break; |
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291 case 24: |
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292 desired_format = SDL_PixelFormat_RGB24; |
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293 break; |
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294 case 32: |
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295 desired_format = SDL_PixelFormat_RGB888; |
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296 break; |
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297 default: |
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298 SDL_SetError("Unsupported bpp in SDL_SetVideoMode()"); |
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299 return NULL; |
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300 } |
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301 } |
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302 mode.format = desired_format; |
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303 mode.w = width; |
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304 mode.h = height; |
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305 mode.refresh_rate = 0; |
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306 |
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307 /* Set the desired display mode */ |
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308 if (flags & SDL_FULLSCREEN) { |
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309 if (!SDL_GetClosestDisplayMode(&mode, &mode)) { |
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310 return NULL; |
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311 } |
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312 } else { |
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313 if (desktop_format) { |
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314 mode.format = desktop_format; |
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315 } |
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316 if (desktop_mode->w && desktop_mode->h) { |
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317 mode.w = desktop_mode->w; |
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318 mode.h = desktop_mode->h; |
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319 } |
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320 mode.refresh_rate = desktop_mode->refresh_rate; |
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321 } |
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322 if (SDL_SetDisplayMode(&mode) < 0) { |
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323 return NULL; |
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324 } |
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325 |
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326 /* Create a renderer for the window */ |
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327 if (SDL_CreateRenderer(SDL_VideoWindow, -1, 0) < 0) { |
| 1670 | 328 return NULL; |
| 329 } | |
| 330 | |
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331 /* Create a texture for the screen surface */ |
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332 SDL_VideoTexture = |
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333 SDL_CreateTexture(desired_format, SDL_TextureAccess_Local, width, |
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334 height); |
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335 if (!SDL_VideoTexture) { |
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336 SDL_VideoTexture = |
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337 SDL_CreateTexture(0, SDL_TextureAccess_Local, width, height); |
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338 } |
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339 if (!SDL_VideoTexture) { |
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340 return NULL; |
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341 } |
| 1670 | 342 |
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343 /* Create the screen surface */ |
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344 SDL_VideoSurface = SDL_CreateRGBSurfaceFromTexture(SDL_VideoTexture); |
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345 if (!SDL_VideoSurface) { |
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346 return NULL; |
| 1670 | 347 } |
| 348 | |
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349 /* Set a default screen palette */ |
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350 if (SDL_VideoSurface->format->palette) { |
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351 SDL_VideoSurface->flags |= SDL_HWPALETTE; |
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352 SDL_DitherColors(SDL_VideoSurface->format->palette->colors, |
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353 SDL_VideoSurface->format->BitsPerPixel); |
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354 SDL_SetTexturePalette(SDL_VideoTexture, |
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355 SDL_VideoSurface->format->palette->colors, 0, |
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356 SDL_VideoSurface->format->palette->ncolors); |
| 1670 | 357 } |
| 358 | |
| 359 /* Create a shadow surface if necessary */ | |
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360 if (((bpp != SDL_VideoSurface->format->BitsPerPixel) |
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361 && !(flags & SDL_ANYFORMAT)) |
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362 || ((SDL_VideoSurface->flags & SDL_HWSURFACE) |
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363 && !(flags & SDL_HWSURFACE))) { |
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364 if ((bpp == SDL_VideoSurface->format->BitsPerPixel) |
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365 || (flags & SDL_ANYFORMAT)) { |
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366 SDL_ShadowSurface = |
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367 SDL_CreateRGBSurface(0, width, height, |
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368 SDL_VideoSurface->format->BitsPerPixel, |
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369 SDL_VideoSurface->format->Rmask, |
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370 SDL_VideoSurface->format->Gmask, |
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371 SDL_VideoSurface->format->Bmask, |
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372 SDL_VideoSurface->format->Amask); |
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373 } else { |
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374 SDL_ShadowSurface = |
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375 SDL_CreateRGBSurface(0, width, height, bpp, 0, 0, 0, 0); |
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376 } |
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377 if (!SDL_ShadowSurface) { |
| 1670 | 378 return NULL; |
| 379 } | |
| 380 | |
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381 /* 8-bit SDL_ShadowSurface surfaces report that they have exclusive palette */ |
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382 if (SDL_ShadowSurface->format->palette) { |
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383 SDL_ShadowSurface->flags |= SDL_HWPALETTE; |
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384 SDL_DitherColors(SDL_ShadowSurface->format->palette->colors, |
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385 SDL_ShadowSurface->format->BitsPerPixel); |
| 1670 | 386 } |
| 387 } | |
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388 SDL_PublicSurface = |
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389 (SDL_ShadowSurface ? SDL_ShadowSurface : SDL_VideoSurface); |
| 1670 | 390 |
| 391 /* Clear the surface for display */ | |
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392 SDL_FillRect(SDL_PublicSurface, NULL, 0); |
| 1670 | 393 |
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394 /* We're finally done! */ |
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395 return SDL_PublicSurface; |
| 1670 | 396 } |
| 397 | |
| 398 SDL_Surface * | |
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399 SDL_GetVideoSurface(void) |
|
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400 { |
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401 return SDL_PublicSurface; |
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402 } |
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403 |
| 1670 | 404 SDL_Surface * |
| 405 SDL_DisplayFormat(SDL_Surface * surface) | |
| 406 { | |
| 407 Uint32 flags; | |
| 408 | |
| 409 if (!SDL_PublicSurface) { | |
| 410 SDL_SetError("No video mode has been set"); | |
|
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411 return NULL; |
| 1670 | 412 } |
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413 |
| 1670 | 414 /* Set the flags appropriate for copying to display surface */ |
|
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415 flags = SDL_SWSURFACE; |
| 1670 | 416 #ifdef AUTORLE_DISPLAYFORMAT |
| 417 flags |= (surface->flags & (SDL_SRCCOLORKEY | SDL_SRCALPHA)); | |
| 418 flags |= SDL_RLEACCELOK; | |
| 419 #else | |
| 420 flags |= | |
| 421 surface->flags & (SDL_SRCCOLORKEY | SDL_SRCALPHA | SDL_RLEACCELOK); | |
| 422 #endif | |
|
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423 return SDL_ConvertSurface(surface, SDL_PublicSurface->format, flags); |
| 1670 | 424 } |
| 425 | |
| 426 SDL_Surface * | |
| 427 SDL_DisplayFormatAlpha(SDL_Surface * surface) | |
| 428 { | |
| 429 SDL_PixelFormat *vf; | |
| 430 SDL_PixelFormat *format; | |
| 431 SDL_Surface *converted; | |
| 432 Uint32 flags; | |
| 433 /* default to ARGB8888 */ | |
| 434 Uint32 amask = 0xff000000; | |
| 435 Uint32 rmask = 0x00ff0000; | |
| 436 Uint32 gmask = 0x0000ff00; | |
| 437 Uint32 bmask = 0x000000ff; | |
| 438 | |
| 439 if (!SDL_PublicSurface) { | |
| 440 SDL_SetError("No video mode has been set"); | |
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441 return NULL; |
| 1670 | 442 } |
| 443 vf = SDL_PublicSurface->format; | |
| 444 | |
| 445 switch (vf->BytesPerPixel) { | |
| 446 case 2: | |
| 447 /* For XGY5[56]5, use, AXGY8888, where {X, Y} = {R, B}. | |
| 448 For anything else (like ARGB4444) it doesn't matter | |
| 449 since we have no special code for it anyway */ | |
| 450 if ((vf->Rmask == 0x1f) && | |
| 451 (vf->Bmask == 0xf800 || vf->Bmask == 0x7c00)) { | |
| 452 rmask = 0xff; | |
| 453 bmask = 0xff0000; | |
| 454 } | |
| 455 break; | |
| 456 | |
| 457 case 3: | |
| 458 case 4: | |
| 459 /* Keep the video format, as long as the high 8 bits are | |
| 460 unused or alpha */ | |
| 461 if ((vf->Rmask == 0xff) && (vf->Bmask == 0xff0000)) { | |
| 462 rmask = 0xff; | |
| 463 bmask = 0xff0000; | |
| 464 } | |
| 465 break; | |
| 466 | |
| 467 default: | |
| 468 /* We have no other optimised formats right now. When/if a new | |
| 469 optimised alpha format is written, add the converter here */ | |
| 470 break; | |
| 471 } | |
| 472 format = SDL_AllocFormat(32, rmask, gmask, bmask, amask); | |
| 473 flags = SDL_PublicSurface->flags & SDL_HWSURFACE; | |
| 474 flags |= surface->flags & (SDL_SRCALPHA | SDL_RLEACCELOK); | |
| 475 converted = SDL_ConvertSurface(surface, format, flags); | |
| 476 SDL_FreeFormat(format); | |
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477 return converted; |
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478 } |
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479 |
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480 int |
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481 SDL_Flip(SDL_Surface * screen) |
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482 { |
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483 SDL_UpdateRect(screen, 0, 0, 0, 0); |
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484 return 0; |
| 1670 | 485 } |
| 486 | |
| 487 void | |
| 488 SDL_UpdateRect(SDL_Surface * screen, Sint32 x, Sint32 y, Uint32 w, Uint32 h) | |
| 489 { | |
| 490 if (screen) { | |
| 491 SDL_Rect rect; | |
| 492 | |
| 493 /* Perform some checking */ | |
| 494 if (w == 0) | |
| 495 w = screen->w; | |
| 496 if (h == 0) | |
| 497 h = screen->h; | |
| 498 if ((int) (x + w) > screen->w) | |
| 499 return; | |
| 500 if ((int) (y + h) > screen->h) | |
| 501 return; | |
| 502 | |
| 503 /* Fill the rectangle */ | |
| 504 rect.x = (Sint16) x; | |
| 505 rect.y = (Sint16) y; | |
| 506 rect.w = (Uint16) w; | |
| 507 rect.h = (Uint16) h; | |
| 508 SDL_UpdateRects(screen, 1, &rect); | |
| 509 } | |
| 510 } | |
| 511 void | |
| 512 SDL_UpdateRects(SDL_Surface * screen, int numrects, SDL_Rect * rects) | |
| 513 { | |
| 514 int i; | |
| 515 | |
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516 if (screen == SDL_ShadowSurface) { |
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517 for (i = 0; i < numrects; ++i) { |
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518 SDL_LowerBlit(SDL_ShadowSurface, &rects[i], SDL_VideoSurface, |
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519 &rects[i]); |
| 1670 | 520 } |
| 521 | |
| 522 /* Fall through to video surface update */ | |
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523 screen = SDL_VideoSurface; |
| 1670 | 524 } |
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525 if (screen == SDL_VideoSurface) { |
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526 for (i = 0; i < numrects; ++i) { |
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527 SDL_RenderCopy(SDL_VideoTexture, &rects[i], &rects[i], |
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528 SDL_TextureBlendMode_None, |
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529 SDL_TextureScaleMode_None); |
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530 } |
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531 SDL_RenderPresent(); |
| 1670 | 532 } |
| 533 } | |
| 534 | |
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535 void |
|
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536 SDL_WM_SetCaption(const char *title, const char *icon) |
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537 { |
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538 if (wm_title) { |
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539 SDL_free(wm_title); |
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540 } else { |
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541 wm_title = SDL_strdup(title); |
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542 } |
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543 SDL_SetWindowTitle(SDL_VideoWindow, wm_title); |
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544 } |
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545 |
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546 void |
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547 SDL_WM_GetCaption(char **title, char **icon) |
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548 { |
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549 if (title) { |
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550 *title = wm_title; |
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551 } |
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552 if (icon) { |
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553 *icon = ""; |
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554 } |
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555 } |
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556 |
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557 void |
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558 SDL_WM_SetIcon(SDL_Surface * icon, Uint8 * mask) |
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559 { |
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560 /* FIXME */ |
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561 } |
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562 |
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563 int |
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564 SDL_WM_IconifyWindow(void) |
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565 { |
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566 SDL_MinimizeWindow(SDL_VideoWindow); |
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567 } |
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568 |
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|
569 int |
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570 SDL_WM_ToggleFullScreen(SDL_Surface * surface) |
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571 { |
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572 return 0; |
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573 } |
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574 |
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575 SDL_GrabMode |
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576 SDL_WM_GrabInput(SDL_GrabMode mode) |
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577 { |
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578 if (mode != SDL_GRAB_QUERY) { |
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579 SDL_SetWindowGrab(SDL_VideoWindow, mode); |
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580 } |
|
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581 return (SDL_GrabMode) SDL_GetWindowGrab(SDL_VideoWindow); |
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582 } |
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583 |
|
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584 void |
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585 SDL_WarpMouse(Uint16 x, Uint16 y) |
|
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586 { |
|
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587 SDL_WarpMouseInWindow(SDL_VideoWindow, x, y); |
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588 } |
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589 |
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590 Uint8 |
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591 SDL_GetAppState(void) |
|
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592 { |
|
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593 Uint8 state = 0; |
|
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594 Uint32 flags = 0; |
|
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595 |
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596 flags = SDL_GetWindowFlags(SDL_VideoWindow); |
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597 if ((flags & SDL_WINDOW_SHOWN) && !(flags & SDL_WINDOW_MINIMIZED)) { |
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598 state |= SDL_APPACTIVE; |
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599 } |
|
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600 if (flags & SDL_WINDOW_KEYBOARD_FOCUS) { |
|
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601 state |= SDL_APPINPUTFOCUS; |
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602 } |
|
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603 if (flags & SDL_WINDOW_MOUSE_FOCUS) { |
|
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604 state |= SDL_APPMOUSEFOCUS; |
|
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605 } |
|
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606 return state; |
|
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607 } |
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608 |
|
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609 const SDL_version * |
|
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610 SDL_Linked_Version(void) |
|
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611 { |
|
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612 static SDL_version version; |
|
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613 SDL_VERSION(&version); |
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614 return &version; |
|
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615 } |
|
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616 |
|
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617 int |
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618 SDL_SetPalette(SDL_Surface * surface, int flags, SDL_Color * colors, |
|
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619 int firstcolor, int ncolors) |
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620 { |
|
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621 SDL_SetColors(surface, colors, firstcolor, ncolors); |
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622 } |
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623 |
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624 int |
| 1670 | 625 SDL_SetScreenColors(SDL_Surface * screen, SDL_Color * colors, int firstcolor, |
| 626 int ncolors) | |
| 627 { | |
| 628 SDL_Palette *pal; | |
| 629 int gotall; | |
| 630 int palsize; | |
| 631 | |
| 632 /* Verify the parameters */ | |
| 633 pal = screen->format->palette; | |
| 634 if (!pal) { | |
| 635 return 0; /* not a palettized surface */ | |
| 636 } | |
| 637 gotall = 1; | |
| 638 palsize = 1 << screen->format->BitsPerPixel; | |
| 639 if (ncolors > (palsize - firstcolor)) { | |
| 640 ncolors = (palsize - firstcolor); | |
| 641 gotall = 0; | |
| 642 } | |
| 643 | |
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644 if (screen == SDL_ShadowSurface) { |
| 1670 | 645 SDL_Palette *vidpal; |
| 646 | |
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647 vidpal = SDL_VideoSurface->format->palette; |
| 1670 | 648 if (vidpal && vidpal->ncolors == pal->ncolors) { |
| 649 /* This is a shadow surface, and the physical | |
| 650 * framebuffer is also indexed. Propagate the | |
| 651 * changes to its logical palette so that | |
| 652 * updates are always identity blits | |
| 653 */ | |
| 654 SDL_memcpy(vidpal->colors + firstcolor, colors, | |
| 655 ncolors * sizeof(*colors)); | |
| 656 } | |
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657 if (SDL_VideoSurface->flags & SDL_HWPALETTE) { |
| 1670 | 658 /* Set the physical palette */ |
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659 screen = SDL_VideoSurface; |
| 1670 | 660 } else { |
| 661 SDL_UpdateRect(screen, 0, 0, 0, 0); | |
| 662 } | |
| 663 } | |
| 664 | |
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665 if (screen == SDL_VideoSurface) { |
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666 SDL_SetTexturePalette(SDL_VideoTexture, |
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667 SDL_VideoSurface->format->palette->colors, 0, |
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668 SDL_VideoSurface->format->palette->ncolors); |
| 1670 | 669 } |
| 670 | |
| 671 return gotall; | |
| 672 } | |
| 673 | |
| 674 int | |
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675 SDL_GetWMInfo(SDL_SysWMinfo * info) |
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676 { |
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677 return SDL_GetWindowWMInfo(SDL_VideoWindow, info); |
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678 } |
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679 |
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680 #if 0 |
| 1670 | 681 void |
| 682 SDL_MoveCursor(int x, int y) | |
| 683 { | |
| 684 SDL_VideoDevice *_this = SDL_GetVideoDevice(); | |
| 685 | |
| 686 /* Erase and update the current mouse position */ | |
| 687 if (SHOULD_DRAWCURSOR(SDL_cursorstate)) { | |
| 688 /* Erase and redraw mouse cursor in new position */ | |
| 689 SDL_LockCursor(); | |
| 690 SDL_EraseCursor(SDL_VideoSurface); | |
| 691 SDL_cursor->area.x = (x - SDL_cursor->hot_x); | |
| 692 SDL_cursor->area.y = (y - SDL_cursor->hot_y); | |
| 693 SDL_DrawCursor(SDL_VideoSurface); | |
| 694 SDL_UnlockCursor(); | |
| 695 } else if (_this->MoveWMCursor) { | |
| 696 _this->MoveWMCursor(_this, x, y); | |
| 697 } | |
| 698 } | |
| 699 | |
| 700 /* Keep track of the current cursor colors */ | |
| 701 static int palette_changed = 1; | |
| 702 static Uint8 pixels8[2]; | |
| 703 | |
| 704 void | |
| 705 SDL_CursorPaletteChanged(void) | |
| 706 { | |
| 707 palette_changed = 1; | |
| 708 } | |
| 709 | |
| 710 void | |
| 711 SDL_MouseRect(SDL_Rect * area) | |
| 712 { | |
| 713 SDL_VideoDevice *_this = SDL_GetVideoDevice(); | |
| 714 int clip_diff; | |
| 715 | |
| 716 *area = SDL_cursor->area; | |
| 717 if (area->x < 0) { | |
| 718 area->w += area->x; | |
| 719 area->x = 0; | |
| 720 } | |
| 721 if (area->y < 0) { | |
| 722 area->h += area->y; | |
| 723 area->y = 0; | |
| 724 } | |
| 725 clip_diff = (area->x + area->w) - SDL_VideoSurface->w; | |
| 726 if (clip_diff > 0) { | |
| 727 area->w = area->w < clip_diff ? 0 : area->w - clip_diff; | |
| 728 } | |
| 729 clip_diff = (area->y + area->h) - SDL_VideoSurface->h; | |
| 730 if (clip_diff > 0) { | |
| 731 area->h = area->h < clip_diff ? 0 : area->h - clip_diff; | |
| 732 } | |
| 733 } | |
| 734 | |
| 735 static void | |
| 736 SDL_DrawCursorFast(SDL_Surface * screen, SDL_Rect * area) | |
| 737 { | |
| 738 const Uint32 pixels[2] = { 0xFFFFFFFF, 0x00000000 }; | |
| 739 int i, w, h; | |
| 740 Uint8 *data, datab; | |
| 741 Uint8 *mask, maskb; | |
| 742 | |
| 743 data = SDL_cursor->data + area->y * SDL_cursor->area.w / 8; | |
| 744 mask = SDL_cursor->mask + area->y * SDL_cursor->area.w / 8; | |
| 745 switch (screen->format->BytesPerPixel) { | |
| 746 | |
| 747 case 1: | |
| 748 { | |
| 749 Uint8 *dst; | |
| 750 int dstskip; | |
| 751 | |
| 752 if (palette_changed) { | |
| 753 pixels8[0] = | |
| 754 (Uint8) SDL_MapRGB(screen->format, 255, 255, 255); | |
| 755 pixels8[1] = (Uint8) SDL_MapRGB(screen->format, 0, 0, 0); | |
| 756 palette_changed = 0; | |
| 757 } | |
| 758 dst = (Uint8 *) screen->pixels + | |
| 759 (SDL_cursor->area.y + area->y) * screen->pitch + | |
| 760 SDL_cursor->area.x; | |
| 761 dstskip = screen->pitch - area->w; | |
| 762 | |
| 763 for (h = area->h; h; h--) { | |
| 764 for (w = area->w / 8; w; w--) { | |
| 765 maskb = *mask++; | |
| 766 datab = *data++; | |
| 767 for (i = 0; i < 8; ++i) { | |
| 768 if (maskb & 0x80) { | |
| 769 *dst = pixels8[datab >> 7]; | |
| 770 } | |
| 771 maskb <<= 1; | |
| 772 datab <<= 1; | |
| 773 dst++; | |
| 774 } | |
| 775 } | |
| 776 dst += dstskip; | |
| 777 } | |
| 778 } | |
| 779 break; | |
| 780 | |
| 781 case 2: | |
| 782 { | |
| 783 Uint16 *dst; | |
| 784 int dstskip; | |
| 785 | |
| 786 dst = (Uint16 *) screen->pixels + | |
| 787 (SDL_cursor->area.y + area->y) * screen->pitch / 2 + | |
| 788 SDL_cursor->area.x; | |
| 789 dstskip = (screen->pitch / 2) - area->w; | |
| 790 | |
| 791 for (h = area->h; h; h--) { | |
| 792 for (w = area->w / 8; w; w--) { | |
| 793 maskb = *mask++; | |
| 794 datab = *data++; | |
| 795 for (i = 0; i < 8; ++i) { | |
| 796 if (maskb & 0x80) { | |
| 797 *dst = (Uint16) pixels[datab >> 7]; | |
| 798 } | |
| 799 maskb <<= 1; | |
| 800 datab <<= 1; | |
| 801 dst++; | |
| 802 } | |
| 803 } | |
| 804 dst += dstskip; | |
| 805 } | |
| 806 } | |
| 807 break; | |
| 808 | |
| 809 case 3: | |
| 810 { | |
| 811 Uint8 *dst; | |
| 812 int dstskip; | |
| 813 | |
| 814 dst = (Uint8 *) screen->pixels + | |
| 815 (SDL_cursor->area.y + area->y) * screen->pitch + | |
| 816 SDL_cursor->area.x * 3; | |
| 817 dstskip = screen->pitch - area->w * 3; | |
| 818 | |
| 819 for (h = area->h; h; h--) { | |
| 820 for (w = area->w / 8; w; w--) { | |
| 821 maskb = *mask++; | |
| 822 datab = *data++; | |
| 823 for (i = 0; i < 8; ++i) { | |
| 824 if (maskb & 0x80) { | |
| 825 SDL_memset(dst, pixels[datab >> 7], 3); | |
| 826 } | |
| 827 maskb <<= 1; | |
| 828 datab <<= 1; | |
| 829 dst += 3; | |
| 830 } | |
| 831 } | |
| 832 dst += dstskip; | |
| 833 } | |
| 834 } | |
| 835 break; | |
| 836 | |
| 837 case 4: | |
| 838 { | |
| 839 Uint32 *dst; | |
| 840 int dstskip; | |
| 841 | |
| 842 dst = (Uint32 *) screen->pixels + | |
| 843 (SDL_cursor->area.y + area->y) * screen->pitch / 4 + | |
| 844 SDL_cursor->area.x; | |
| 845 dstskip = (screen->pitch / 4) - area->w; | |
| 846 | |
| 847 for (h = area->h; h; h--) { | |
| 848 for (w = area->w / 8; w; w--) { | |
| 849 maskb = *mask++; | |
| 850 datab = *data++; | |
| 851 for (i = 0; i < 8; ++i) { | |
| 852 if (maskb & 0x80) { | |
| 853 *dst = pixels[datab >> 7]; | |
| 854 } | |
| 855 maskb <<= 1; | |
| 856 datab <<= 1; | |
| 857 dst++; | |
| 858 } | |
| 859 } | |
| 860 dst += dstskip; | |
| 861 } | |
| 862 } | |
| 863 break; | |
| 864 } | |
| 865 } | |
| 866 | |
| 867 static void | |
| 868 SDL_DrawCursorSlow(SDL_Surface * screen, SDL_Rect * area) | |
| 869 { | |
| 870 const Uint32 pixels[2] = { 0xFFFFFF, 0x000000 }; | |
| 871 int h; | |
| 872 int x, minx, maxx; | |
| 873 Uint8 *data, datab = 0; | |
| 874 Uint8 *mask, maskb = 0; | |
| 875 Uint8 *dst; | |
| 876 int dstbpp, dstskip; | |
| 877 | |
| 878 data = SDL_cursor->data + area->y * SDL_cursor->area.w / 8; | |
| 879 mask = SDL_cursor->mask + area->y * SDL_cursor->area.w / 8; | |
| 880 dstbpp = screen->format->BytesPerPixel; | |
| 881 dst = (Uint8 *) screen->pixels + | |
| 882 (SDL_cursor->area.y + area->y) * screen->pitch + | |
| 883 SDL_cursor->area.x * dstbpp; | |
| 884 dstskip = screen->pitch - SDL_cursor->area.w * dstbpp; | |
| 885 | |
| 886 minx = area->x; | |
| 887 maxx = area->x + area->w; | |
| 888 if (screen->format->BytesPerPixel == 1) { | |
| 889 if (palette_changed) { | |
| 890 pixels8[0] = (Uint8) SDL_MapRGB(screen->format, 255, 255, 255); | |
| 891 pixels8[1] = (Uint8) SDL_MapRGB(screen->format, 0, 0, 0); | |
| 892 palette_changed = 0; | |
| 893 } | |
| 894 for (h = area->h; h; h--) { | |
| 895 for (x = 0; x < SDL_cursor->area.w; ++x) { | |
| 896 if ((x % 8) == 0) { | |
| 897 maskb = *mask++; | |
| 898 datab = *data++; | |
| 899 } | |
| 900 if ((x >= minx) && (x < maxx)) { | |
| 901 if (maskb & 0x80) { | |
| 902 SDL_memset(dst, pixels8[datab >> 7], dstbpp); | |
| 903 } | |
| 904 } | |
| 905 maskb <<= 1; | |
| 906 datab <<= 1; | |
| 907 dst += dstbpp; | |
| 908 } | |
| 909 dst += dstskip; | |
| 910 } | |
| 911 } else { | |
| 912 for (h = area->h; h; h--) { | |
| 913 for (x = 0; x < SDL_cursor->area.w; ++x) { | |
| 914 if ((x % 8) == 0) { | |
| 915 maskb = *mask++; | |
| 916 datab = *data++; | |
| 917 } | |
| 918 if ((x >= minx) && (x < maxx)) { | |
| 919 if (maskb & 0x80) { | |
| 920 SDL_memset(dst, pixels[datab >> 7], dstbpp); | |
| 921 } | |
| 922 } | |
| 923 maskb <<= 1; | |
| 924 datab <<= 1; | |
| 925 dst += dstbpp; | |
| 926 } | |
| 927 dst += dstskip; | |
| 928 } | |
| 929 } | |
| 930 } | |
| 931 | |
| 932 /* This handles the ugly work of converting the saved cursor background from | |
| 933 the pixel format of the shadow surface to that of the video surface. | |
| 934 This is only necessary when blitting from a shadow surface of a different | |
| 935 pixel format than the video surface, and using a software rendered cursor. | |
| 936 */ | |
| 937 static void | |
| 938 SDL_ConvertCursorSave(SDL_Surface * screen, int w, int h) | |
| 939 { | |
| 940 SDL_VideoDevice *_this = SDL_GetVideoDevice(); | |
| 941 SDL_BlitInfo info; | |
| 942 SDL_loblit RunBlit; | |
| 943 | |
| 944 /* Make sure we can steal the blit mapping */ | |
| 945 if (screen->map->dst != SDL_VideoSurface) { | |
| 946 return; | |
| 947 } | |
| 948 | |
| 949 /* Set up the blit information */ | |
| 950 info.s_pixels = SDL_cursor->save[1]; | |
| 951 info.s_width = w; | |
| 952 info.s_height = h; | |
| 953 info.s_skip = 0; | |
| 954 info.d_pixels = SDL_cursor->save[0]; | |
| 955 info.d_width = w; | |
| 956 info.d_height = h; | |
| 957 info.d_skip = 0; | |
| 958 info.aux_data = screen->map->sw_data->aux_data; | |
| 959 info.src = screen->format; | |
| 960 info.table = screen->map->table; | |
| 961 info.dst = SDL_VideoSurface->format; | |
| 962 RunBlit = screen->map->sw_data->blit; | |
| 963 | |
| 964 /* Run the actual software blit */ | |
| 965 RunBlit(&info); | |
| 966 } | |
| 967 | |
| 968 void | |
| 969 SDL_DrawCursorNoLock(SDL_Surface * screen) | |
| 970 { | |
| 971 SDL_VideoDevice *_this = SDL_GetVideoDevice(); | |
| 972 SDL_Rect area; | |
| 973 | |
| 974 /* Get the mouse rectangle, clipped to the screen */ | |
| 975 SDL_MouseRect(&area); | |
| 976 if ((area.w == 0) || (area.h == 0)) { | |
| 977 return; | |
| 978 } | |
| 979 | |
| 980 /* Copy mouse background */ | |
| 981 { | |
| 982 int w, h, screenbpp; | |
| 983 Uint8 *src, *dst; | |
| 984 | |
| 985 /* Set up the copy pointers */ | |
| 986 screenbpp = screen->format->BytesPerPixel; | |
| 987 if ((screen == SDL_VideoSurface) || | |
| 988 FORMAT_EQUAL(screen->format, SDL_VideoSurface->format)) { | |
| 989 dst = SDL_cursor->save[0]; | |
| 990 } else { | |
| 991 dst = SDL_cursor->save[1]; | |
| 992 } | |
| 993 src = (Uint8 *) screen->pixels + area.y * screen->pitch + | |
| 994 area.x * screenbpp; | |
| 995 | |
| 996 /* Perform the copy */ | |
| 997 w = area.w * screenbpp; | |
| 998 h = area.h; | |
| 999 while (h--) { | |
| 1000 SDL_memcpy(dst, src, w); | |
| 1001 dst += w; | |
| 1002 src += screen->pitch; | |
| 1003 } | |
| 1004 } | |
| 1005 | |
| 1006 /* Draw the mouse cursor */ | |
| 1007 area.x -= SDL_cursor->area.x; | |
| 1008 area.y -= SDL_cursor->area.y; | |
| 1009 if ((area.x == 0) && (area.w == SDL_cursor->area.w)) { | |
| 1010 SDL_DrawCursorFast(screen, &area); | |
| 1011 } else { | |
| 1012 SDL_DrawCursorSlow(screen, &area); | |
| 1013 } | |
| 1014 } | |
| 1015 | |
| 1016 void | |
| 1017 SDL_DrawCursor(SDL_Surface * screen) | |
| 1018 { | |
| 1019 /* Lock the screen if necessary */ | |
| 1020 if (screen == NULL) { | |
| 1021 return; | |
| 1022 } | |
| 1023 if (SDL_MUSTLOCK(screen)) { | |
| 1024 if (SDL_LockSurface(screen) < 0) { | |
| 1025 return; | |
| 1026 } | |
| 1027 } | |
| 1028 | |
| 1029 SDL_DrawCursorNoLock(screen); | |
| 1030 | |
| 1031 /* Unlock the screen and update if necessary */ | |
| 1032 if (SDL_MUSTLOCK(screen)) { | |
| 1033 SDL_UnlockSurface(screen); | |
| 1034 } | |
| 1035 if ((screen->flags & SDL_SCREEN_SURFACE) && | |
| 1036 !(screen->flags & SDL_HWSURFACE)) { | |
| 1037 SDL_VideoDevice *_this = SDL_GetVideoDevice(); | |
| 1038 SDL_Window *window; | |
| 1039 SDL_Rect area; | |
| 1040 | |
| 1041 window = SDL_GetWindowFromSurface(screen); | |
| 1042 if (!window) { | |
| 1043 return; | |
| 1044 } | |
| 1045 | |
| 1046 SDL_MouseRect(&area); | |
| 1047 | |
| 1048 if (_this->UpdateWindowSurface) { | |
| 1049 _this->UpdateWindowSurface(_this, window, 1, &area); | |
| 1050 } | |
| 1051 } | |
| 1052 } | |
| 1053 | |
| 1054 void | |
| 1055 SDL_EraseCursorNoLock(SDL_Surface * screen) | |
| 1056 { | |
| 1057 SDL_VideoDevice *_this = SDL_GetVideoDevice(); | |
| 1058 SDL_Window *window; | |
| 1059 SDL_Rect area; | |
| 1060 | |
| 1061 /* Get the window associated with the surface */ | |
| 1062 window = SDL_GetWindowFromSurface(screen); | |
| 1063 if (!window || !window->surface) { | |
| 1064 return; | |
| 1065 } | |
| 1066 | |
| 1067 /* Get the mouse rectangle, clipped to the screen */ | |
| 1068 SDL_MouseRect(&area); | |
| 1069 if ((area.w == 0) || (area.h == 0)) { | |
| 1070 return; | |
| 1071 } | |
| 1072 | |
| 1073 /* Copy mouse background */ | |
| 1074 { | |
| 1075 int w, h, screenbpp; | |
| 1076 Uint8 *src, *dst; | |
| 1077 | |
| 1078 /* Set up the copy pointers */ | |
| 1079 screenbpp = screen->format->BytesPerPixel; | |
| 1080 if ((screen->flags & SDL_SCREEN_SURFACE) || | |
| 1081 FORMAT_EQUAL(screen->format, window->surface->format)) { | |
| 1082 src = SDL_cursor->save[0]; | |
| 1083 } else { | |
| 1084 src = SDL_cursor->save[1]; | |
| 1085 } | |
| 1086 dst = (Uint8 *) screen->pixels + area.y * screen->pitch + | |
| 1087 area.x * screenbpp; | |
| 1088 | |
| 1089 /* Perform the copy */ | |
| 1090 w = area.w * screenbpp; | |
| 1091 h = area.h; | |
| 1092 while (h--) { | |
| 1093 SDL_memcpy(dst, src, w); | |
| 1094 src += w; | |
| 1095 dst += screen->pitch; | |
| 1096 } | |
| 1097 | |
| 1098 /* Perform pixel conversion on cursor background */ | |
| 1099 if (src > SDL_cursor->save[1]) { | |
| 1100 SDL_ConvertCursorSave(screen, area.w, area.h); | |
| 1101 } | |
| 1102 } | |
| 1103 } | |
| 1104 | |
| 1105 void | |
| 1106 SDL_EraseCursor(SDL_Surface * screen) | |
| 1107 { | |
| 1108 /* Lock the screen if necessary */ | |
| 1109 if (screen == NULL) { | |
| 1110 return; | |
| 1111 } | |
| 1112 if (SDL_MUSTLOCK(screen)) { | |
| 1113 if (SDL_LockSurface(screen) < 0) { | |
| 1114 return; | |
| 1115 } | |
| 1116 } | |
| 1117 | |
| 1118 SDL_EraseCursorNoLock(screen); | |
| 1119 | |
| 1120 /* Unlock the screen and update if necessary */ | |
| 1121 if (SDL_MUSTLOCK(screen)) { | |
| 1122 SDL_UnlockSurface(screen); | |
| 1123 } | |
| 1124 if ((screen->flags & SDL_SCREEN_SURFACE) && | |
| 1125 !(screen->flags & SDL_HWSURFACE)) { | |
| 1126 SDL_VideoDevice *_this = SDL_GetVideoDevice(); | |
| 1127 SDL_Window *window; | |
| 1128 SDL_Rect area; | |
| 1129 | |
| 1130 window = SDL_GetWindowFromSurface(screen); | |
| 1131 if (!window) { | |
| 1132 return; | |
| 1133 } | |
| 1134 | |
| 1135 SDL_MouseRect(&area); | |
| 1136 | |
| 1137 if (_this->UpdateWindowSurface) { | |
| 1138 _this->UpdateWindowSurface(_this, window, 1, &area); | |
| 1139 } | |
| 1140 } | |
| 1141 } | |
| 1142 | |
| 1143 /* Reset the cursor on video mode change | |
| 1144 FIXME: Keep track of all cursors, and reset them all. | |
| 1145 */ | |
| 1146 void | |
| 1147 SDL_ResetCursor(void) | |
| 1148 { | |
| 1149 int savelen; | |
| 1150 | |
| 1151 if (SDL_cursor) { | |
| 1152 savelen = SDL_cursor->area.w * 4 * SDL_cursor->area.h; | |
| 1153 SDL_cursor->area.x = 0; | |
| 1154 SDL_cursor->area.y = 0; | |
| 1155 SDL_memset(SDL_cursor->save[0], 0, savelen); | |
| 1156 } | |
| 1157 } | |
| 1158 | |
|
1675
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|
1159 SDL_Overlay * |
|
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1160 SDL_CreateYUVOverlay(int w, int h, Uint32 format, SDL_Surface * display) |
|
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1161 { |
|
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|
1162 SDL_VideoDevice *_this = SDL_GetVideoDevice(); |
|
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|
1163 SDL_Window *window; |
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1164 const char *yuv_hwaccel; |
|
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1165 SDL_Overlay *overlay; |
|
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|
1166 |
|
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|
1167 window = SDL_GetWindowFromSurface(display); |
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1168 if (window && (window->flags & SDL_WINDOW_OPENGL)) { |
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1169 SDL_SetError("YUV overlays are not supported in OpenGL mode"); |
|
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1170 return NULL; |
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1171 } |
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|
1172 |
|
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|
1173 /* Display directly on video surface, if possible */ |
|
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1174 if (SDL_getenv("SDL_VIDEO_YUV_DIRECT")) { |
|
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|
1175 if (window && |
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1176 ((window->surface->format->BytesPerPixel == 2) || |
|
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1177 (window->surface->format->BytesPerPixel == 4))) { |
|
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1178 display = window->surface; |
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1179 } |
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1180 } |
|
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1181 overlay = NULL; |
|
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1182 yuv_hwaccel = SDL_getenv("SDL_VIDEO_YUV_HWACCEL"); |
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1183 if (((display->flags & SDL_SCREEN_SURFACE) && _this->CreateYUVOverlay) && |
|
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1184 (!yuv_hwaccel || (SDL_atoi(yuv_hwaccel) > 0))) { |
|
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1185 overlay = _this->CreateYUVOverlay(_this, w, h, format, display); |
|
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1186 } |
|
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|
1187 /* If hardware YUV overlay failed ... */ |
|
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|
1188 if (overlay == NULL) { |
|
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|
1189 overlay = SDL_CreateYUV_SW(_this, w, h, format, display); |
|
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|
1190 } |
|
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1191 return overlay; |
|
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1192 } |
|
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|
1193 |
|
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|
1194 int |
|
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|
1195 SDL_LockYUVOverlay(SDL_Overlay * overlay) |
|
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|
1196 { |
|
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|
1197 SDL_VideoDevice *_this = SDL_GetVideoDevice(); |
|
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1198 return overlay->hwfuncs->Lock(_this, overlay); |
|
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1199 } |
|
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|
1200 |
|
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|
1201 void |
|
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|
1202 SDL_UnlockYUVOverlay(SDL_Overlay * overlay) |
|
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|
1203 { |
|
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|
1204 SDL_VideoDevice *_this = SDL_GetVideoDevice(); |
|
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|
1205 overlay->hwfuncs->Unlock(_this, overlay); |
|
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|
1206 } |
|
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|
1207 |
|
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|
1208 int |
|
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|
1209 SDL_DisplayYUVOverlay(SDL_Overlay * overlay, SDL_Rect * dstrect) |
|
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|
1210 { |
|
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|
1211 SDL_VideoDevice *_this = SDL_GetVideoDevice(); |
|
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|
1212 SDL_Rect src, dst; |
|
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|
1213 int srcx, srcy, srcw, srch; |
|
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|
1214 int dstx, dsty, dstw, dsth; |
|
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|
1215 |
|
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|
1216 /* Clip the rectangle to the screen area */ |
|
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|
1217 srcx = 0; |
|
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|
1218 srcy = 0; |
|
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|
1219 srcw = overlay->w; |
|
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|
1220 srch = overlay->h; |
|
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|
1221 dstx = dstrect->x; |
|
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|
1222 dsty = dstrect->y; |
|
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|
1223 dstw = dstrect->w; |
|
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|
1224 dsth = dstrect->h; |
|
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|
1225 if (dstx < 0) { |
|
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|
1226 srcw += (dstx * overlay->w) / dstrect->w; |
|
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|
1227 dstw += dstx; |
|
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|
1228 srcx -= (dstx * overlay->w) / dstrect->w; |
|
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|
1229 dstx = 0; |
|
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|
1230 } |
|
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|
1231 if ((dstx + dstw) > SDL_VideoSurface->w) { |
|
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|
1232 int extra = (dstx + dstw - SDL_VideoSurface->w); |
|
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|
1233 srcw -= (extra * overlay->w) / dstrect->w; |
|
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|
1234 dstw -= extra; |
|
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|
1235 } |
|
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|
1236 if (dsty < 0) { |
|
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|
1237 srch += (dsty * overlay->h) / dstrect->h; |
|
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|
1238 dsth += dsty; |
|
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|
1239 srcy -= (dsty * overlay->h) / dstrect->h; |
|
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|
1240 dsty = 0; |
|
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|
1241 } |
|
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|
1242 if ((dsty + dsth) > SDL_VideoSurface->h) { |
|
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|
1243 int extra = (dsty + dsth - SDL_VideoSurface->h); |
|
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|
1244 srch -= (extra * overlay->h) / dstrect->h; |
|
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|
1245 dsth -= extra; |
|
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|
1246 } |
|
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|
1247 if (srcw <= 0 || srch <= 0 || srch <= 0 || dsth <= 0) { |
|
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|
1248 return 0; |
|
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|
1249 } |
|
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|
1250 /* Ugh, I can't wait for SDL_Rect to be int values */ |
|
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|
1251 src.x = srcx; |
|
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|
1252 src.y = srcy; |
|
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|
1253 src.w = srcw; |
|
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|
1254 src.h = srch; |
|
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|
1255 dst.x = dstx; |
|
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|
1256 dst.y = dsty; |
|
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|
1257 dst.w = dstw; |
|
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|
1258 dst.h = dsth; |
|
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|
1259 return overlay->hwfuncs->Display(_this, overlay, &src, &dst); |
|
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|
1260 } |
|
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|
1261 |
|
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changeset
|
1262 void |
|
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changeset
|
1263 SDL_FreeYUVOverlay(SDL_Overlay * overlay) |
|
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|
1264 { |
|
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|
1265 SDL_VideoDevice *_this = SDL_GetVideoDevice(); |
|
d33dcfc3fde7
Overlay functions are being replaced by YUV textures.
Sam Lantinga <slouken@libsdl.org>
parents:
1670
diff
changeset
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1266 if (overlay) { |
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d33dcfc3fde7
Overlay functions are being replaced by YUV textures.
Sam Lantinga <slouken@libsdl.org>
parents:
1670
diff
changeset
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1267 if (overlay->hwfuncs) { |
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d33dcfc3fde7
Overlay functions are being replaced by YUV textures.
Sam Lantinga <slouken@libsdl.org>
parents:
1670
diff
changeset
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1268 overlay->hwfuncs->FreeHW(_this, overlay); |
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d33dcfc3fde7
Overlay functions are being replaced by YUV textures.
Sam Lantinga <slouken@libsdl.org>
parents:
1670
diff
changeset
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1269 } |
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d33dcfc3fde7
Overlay functions are being replaced by YUV textures.
Sam Lantinga <slouken@libsdl.org>
parents:
1670
diff
changeset
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1270 SDL_free(overlay); |
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d33dcfc3fde7
Overlay functions are being replaced by YUV textures.
Sam Lantinga <slouken@libsdl.org>
parents:
1670
diff
changeset
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1271 } |
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d33dcfc3fde7
Overlay functions are being replaced by YUV textures.
Sam Lantinga <slouken@libsdl.org>
parents:
1670
diff
changeset
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1272 } |
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1678
90bf530ced8e
SDL_SetVideoMode() compiles now...
Sam Lantinga <slouken@libsdl.org>
parents:
1675
diff
changeset
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1273 #endif |
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1675
d33dcfc3fde7
Overlay functions are being replaced by YUV textures.
Sam Lantinga <slouken@libsdl.org>
parents:
1670
diff
changeset
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1274 |
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1667
1fddae038bc8
Implemented many compatibility functions
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
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1275 /* vi: set ts=4 sw=4 expandtab: */ |