Mercurial > sdl-ios-xcode
annotate src/video/dc/SDL_dcvideo.c @ 2850:43691ef70176
Whoops, fixed pitch bug after resizing a surface
author | Sam Lantinga <slouken@libsdl.org> |
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date | Sun, 07 Dec 2008 22:04:24 +0000 |
parents | 204be4fc2726 |
children | 99210400e8b9 |
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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 #include "SDL_video.h" |
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25 #include "SDL_mouse.h" |
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26 #include "../SDL_sysvideo.h" |
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27 #include "../SDL_pixels_c.h" |
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28 #include "../../events/SDL_events_c.h" |
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29 |
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30 #include "SDL_dcvideo.h" |
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31 #include "SDL_dcevents_c.h" |
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32 #include "SDL_dcmouse_c.h" |
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33 |
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34 #include <dc/video.h> |
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35 #include <dc/pvr.h> |
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36 |
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37 |
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38 /* Initialization/Query functions */ |
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39 static int DC_VideoInit(_THIS, SDL_PixelFormat * vformat); |
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40 static SDL_Rect **DC_ListModes(_THIS, SDL_PixelFormat * format, Uint32 flags); |
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41 static SDL_Surface *DC_SetVideoMode(_THIS, SDL_Surface * current, int width, |
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42 int height, int bpp, Uint32 flags); |
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43 static int DC_SetColors(_THIS, int firstcolor, int ncolors, |
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44 SDL_Color * colors); |
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45 static void DC_VideoQuit(_THIS); |
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46 |
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47 /* Hardware surface functions */ |
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48 static int DC_AllocHWSurface(_THIS, SDL_Surface * surface); |
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49 static int DC_LockHWSurface(_THIS, SDL_Surface * surface); |
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50 static void DC_UnlockHWSurface(_THIS, SDL_Surface * surface); |
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51 static void DC_FreeHWSurface(_THIS, SDL_Surface * surface); |
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52 static int DC_FlipHWSurface(_THIS, SDL_Surface * surface); |
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53 |
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54 /* etc. */ |
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55 static void DC_UpdateRects(_THIS, int numrects, SDL_Rect * rects); |
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56 |
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57 /* OpenGL */ |
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58 #if SDL_VIDEO_OPENGL |
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59 static void *DC_GL_GetProcAddress(_THIS, const char *proc); |
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60 static int DC_GL_LoadLibrary(_THIS, const char *path); |
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61 static int DC_GL_GetAttribute(_THIS, SDL_GLattr attrib, int *value); |
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62 static void DC_GL_SwapBuffers(_THIS); |
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63 #endif |
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64 |
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65 /* DC driver bootstrap functions */ |
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66 |
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67 static int |
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68 DC_Available(void) |
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69 { |
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70 return 1; |
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71 } |
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72 |
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73 static void |
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74 DC_DeleteDevice(SDL_VideoDevice * device) |
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75 { |
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76 SDL_free(device->hidden); |
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77 SDL_free(device); |
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78 } |
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79 |
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80 static SDL_VideoDevice * |
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81 DC_CreateDevice(int devindex) |
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82 { |
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83 SDL_VideoDevice *device; |
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84 |
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85 /* Initialize all variables that we clean on shutdown */ |
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86 device = (SDL_VideoDevice *) SDL_malloc(sizeof(SDL_VideoDevice)); |
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87 if (device) { |
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88 SDL_memset(device, 0, (sizeof *device)); |
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89 device->hidden = (struct SDL_PrivateVideoData *) |
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90 SDL_malloc((sizeof *device->hidden)); |
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91 } |
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92 if ((device == NULL) || (device->hidden == NULL)) { |
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93 SDL_OutOfMemory(); |
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94 if (device) { |
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95 SDL_free(device); |
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96 } |
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97 return (0); |
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98 } |
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99 SDL_memset(device->hidden, 0, (sizeof *device->hidden)); |
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100 |
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101 /* Set the function pointers */ |
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102 device->VideoInit = DC_VideoInit; |
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103 device->ListModes = DC_ListModes; |
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104 device->SetVideoMode = DC_SetVideoMode; |
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105 device->CreateYUVOverlay = NULL; |
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106 device->SetColors = DC_SetColors; |
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107 device->UpdateRects = DC_UpdateRects; |
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108 device->VideoQuit = DC_VideoQuit; |
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109 device->AllocHWSurface = DC_AllocHWSurface; |
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110 device->CheckHWBlit = NULL; |
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111 device->FillHWRect = NULL; |
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112 device->SetHWColorKey = NULL; |
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113 device->SetHWAlpha = NULL; |
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114 device->LockHWSurface = DC_LockHWSurface; |
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115 device->UnlockHWSurface = DC_UnlockHWSurface; |
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116 device->FlipHWSurface = DC_FlipHWSurface; |
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117 device->FreeHWSurface = DC_FreeHWSurface; |
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118 #if SDL_VIDEO_OPENGL |
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119 device->GL_LoadLibrary = DC_GL_LoadLibrary; |
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120 device->GL_GetProcAddress = DC_GL_GetProcAddress; |
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121 device->GL_GetAttribute = DC_GL_GetAttribute; |
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122 device->GL_MakeCurrent = NULL; |
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123 device->GL_SwapBuffers = DC_GL_SwapBuffers; |
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124 #endif |
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125 device->SetCaption = NULL; |
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126 device->SetIcon = NULL; |
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127 device->IconifyWindow = NULL; |
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128 device->GrabInput = NULL; |
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129 device->GetWMInfo = NULL; |
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130 device->InitOSKeymap = DC_InitOSKeymap; |
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131 device->PumpEvents = DC_PumpEvents; |
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132 |
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133 device->free = DC_DeleteDevice; |
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134 |
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135 return device; |
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136 } |
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137 |
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138 VideoBootStrap DC_bootstrap = { |
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139 "dcvideo", "Dreamcast Video", |
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140 DC_Available, DC_CreateDevice |
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141 }; |
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142 |
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143 |
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144 int |
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145 DC_VideoInit(_THIS, SDL_PixelFormat * vformat) |
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146 { |
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147 /* Determine the screen depth (use default 16-bit depth) */ |
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148 /* we change this during the SDL_SetVideoMode implementation... */ |
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149 vformat->BitsPerPixel = 16; |
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150 vformat->Rmask = 0x0000f800; |
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151 vformat->Gmask = 0x000007e0; |
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152 vformat->Bmask = 0x0000001f; |
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153 |
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154 /* We're done! */ |
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155 return (0); |
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156 } |
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157 |
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158 const static SDL_Rect RECT_800x600 = { 0, 0, 800, 600 }, RECT_640x480 = { |
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159 0, 0, 640, 480}, RECT_320x240 = { |
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160 0, 0, 320, 240}; |
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161 |
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162 const static SDL_Rect *vid_modes[] = { |
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163 &RECT_800x600, |
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164 &RECT_640x480, |
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165 &RECT_320x240, |
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166 NULL |
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167 }; |
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168 |
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169 SDL_Rect ** |
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170 DC_ListModes(_THIS, SDL_PixelFormat * format, Uint32 flags) |
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171 { |
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172 switch (format->BitsPerPixel) { |
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173 case 15: |
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174 case 16: |
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175 return &vid_modes; |
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176 case 32: |
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177 if (!(flags & SDL_INTERNALOPENGL)) |
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178 return &vid_modes; |
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179 default: |
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180 return NULL; |
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181 } |
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182 // return (SDL_Rect **) -1; |
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183 } |
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184 |
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185 pvr_init_params_t params = { |
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186 /* Enable opaque and translucent polygons with size 16 */ |
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187 {PVR_BINSIZE_16, PVR_BINSIZE_0, PVR_BINSIZE_16, PVR_BINSIZE_0, |
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188 PVR_BINSIZE_16} |
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189 , |
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190 |
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191 /* Vertex buffer size */ |
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192 512 * 1024 |
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193 }; |
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194 |
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195 #if SDL_VIDEO_OPENGL |
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196 static int pvr_inited; |
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197 #endif |
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198 |
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199 SDL_Surface * |
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200 DC_SetVideoMode(_THIS, SDL_Surface * current, |
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201 int width, int height, int bpp, Uint32 flags) |
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202 { |
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203 int disp_mode, pixel_mode, pitch; |
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204 Uint32 Rmask, Gmask, Bmask; |
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205 |
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206 if (width == 320 && height == 240) |
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207 disp_mode = DM_320x240; |
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208 else if (width == 640 && height == 480) |
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209 disp_mode = DM_640x480; |
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210 else if (width == 800 && height == 600) |
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211 disp_mode = DM_800x608; |
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212 else { |
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213 SDL_SetError("Couldn't find requested mode in list"); |
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214 return (NULL); |
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215 } |
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216 |
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217 switch (bpp) { |
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218 case 15: |
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219 pixel_mode = PM_RGB555; |
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220 pitch = width * 2; |
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221 /* 5-5-5 */ |
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222 Rmask = 0x00007c00; |
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223 Gmask = 0x000003e0; |
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224 Bmask = 0x0000001f; |
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225 break; |
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226 case 16: |
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227 pixel_mode = PM_RGB565; |
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228 pitch = width * 2; |
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229 /* 5-6-5 */ |
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230 Rmask = 0x0000f800; |
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231 Gmask = 0x000007e0; |
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232 Bmask = 0x0000001f; |
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233 break; |
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234 case 24: |
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235 bpp = 32; |
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236 case 32: |
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237 pixel_mode = PM_RGB888; |
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238 pitch = width * 4; |
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239 Rmask = 0x00ff0000; |
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240 Gmask = 0x0000ff00; |
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241 Bmask = 0x000000ff; |
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242 #if SDL_VIDEO_OPENGL |
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243 if (!(flags & SDL_INTERNALOPENGL)) |
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244 #endif |
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245 break; |
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246 default: |
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247 SDL_SetError("Couldn't find requested mode in list"); |
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248 return (NULL); |
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249 } |
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250 |
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251 // if ( bpp != current->format->BitsPerPixel ) { |
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252 if (!SDL_ReallocFormat(current, bpp, Rmask, Gmask, Bmask, 0)) { |
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253 return (NULL); |
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254 } |
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255 // } |
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256 |
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257 /* Set up the new mode framebuffer */ |
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258 current->flags = (SDL_FULLSCREEN | SDL_HWSURFACE); |
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259 current->w = width; |
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260 current->h = height; |
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261 current->pitch = pitch; |
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262 |
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263 #if SDL_VIDEO_OPENGL |
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264 if (pvr_inited) { |
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265 pvr_inited = 0; |
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266 pvr_shutdown(); |
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267 } |
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268 #endif |
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269 |
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270 vid_set_mode(disp_mode, pixel_mode); |
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271 |
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272 current->pixels = vram_s; |
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273 |
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274 #if SDL_VIDEO_OPENGL |
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275 if (flags & SDL_INTERNALOPENGL) { |
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276 this->gl_config.driver_loaded = 1; |
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277 current->flags = SDL_FULLSCREEN | SDL_INTERNALOPENGL; |
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278 current->pixels = NULL; |
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279 pvr_inited = 1; |
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280 pvr_init(¶ms); |
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281 glKosInit(); |
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282 glKosBeginFrame(); |
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283 } else |
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284 #endif |
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285 if (flags | SDL_DOUBLEBUF) { |
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286 current->flags |= SDL_DOUBLEBUF; |
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287 current->pixels = (void *) ((int) current->pixels | 0x400000); |
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288 } |
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289 |
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290 /* We're done */ |
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291 return (current); |
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292 } |
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293 |
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294 /* We don't actually allow hardware surfaces other than the main one */ |
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295 static int |
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296 DC_AllocHWSurface(_THIS, SDL_Surface * surface) |
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297 { |
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298 return (-1); |
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299 } |
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300 |
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301 static void |
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302 DC_FreeHWSurface(_THIS, SDL_Surface * surface) |
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303 { |
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304 return; |
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305 } |
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306 |
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307 /* We need to wait for vertical retrace on page flipped displays */ |
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308 static int |
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309 DC_LockHWSurface(_THIS, SDL_Surface * surface) |
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310 { |
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311 return (0); |
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312 } |
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313 |
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314 static void |
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315 DC_UnlockHWSurface(_THIS, SDL_Surface * surface) |
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316 { |
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317 return; |
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318 } |
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319 |
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320 static int |
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321 DC_FlipHWSurface(_THIS, SDL_Surface * surface) |
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322 { |
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323 if (surface->flags & SDL_DOUBLEBUF) { |
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324 vid_set_start((int) surface->pixels & 0xffffff); |
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325 surface->pixels = (void *) ((int) surface->pixels ^ 0x400000); |
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326 } |
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327 return (0); |
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328 } |
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329 |
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330 static void |
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331 DC_UpdateRects(_THIS, int numrects, SDL_Rect * rects) |
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332 { |
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333 /* do nothing. */ |
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334 } |
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335 |
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336 static int |
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337 DC_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color * colors) |
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338 { |
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339 /* do nothing of note. */ |
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340 return (1); |
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341 } |
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342 |
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343 /* Note: If we are terminated, this could be called in the middle of |
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344 another SDL video routine -- notably UpdateRects. |
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345 */ |
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346 static void |
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347 DC_VideoQuit(_THIS) |
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348 { |
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349 #if SDL_VIDEO_OPENGL |
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350 if (pvr_inited) { |
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351 pvr_inited = 0; |
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352 pvr_shutdown(); |
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353 } |
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354 #endif |
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355 } |
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356 |
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357 #if SDL_VIDEO_OPENGL |
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358 |
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359 void |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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360 dmyfunc(void) |
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361 { |
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362 } |
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363 |
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364 typedef void (*funcptr) (); |
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365 const static struct |
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366 { |
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367 char *name; |
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368 funcptr addr; |
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369 } glfuncs[] = { |
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370 #define DEF(func) {#func,&func} |
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371 DEF(glBegin), DEF(glBindTexture), DEF(glBlendFunc), DEF(glColor4f), |
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372 // DEF(glCopyImageID), |
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373 DEF(glDisable), |
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374 DEF(glEnable), |
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375 DEF(glEnd), |
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376 DEF(glFlush), |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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377 DEF(glGenTextures), |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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378 DEF(glGetString), |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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379 DEF(glLoadIdentity), |
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380 DEF(glMatrixMode), DEF(glOrtho), DEF(glPixelStorei), |
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381 // DEF(glPopAttrib), |
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382 // DEF(glPopClientAttrib), |
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383 { |
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384 "glPopAttrib", &dmyfunc}, { |
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385 "glPopClientAttrib", &dmyfunc}, DEF(glPopMatrix), |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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386 // DEF(glPushAttrib), |
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387 // DEF(glPushClientAttrib), |
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388 { |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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389 "glPushAttrib", &dmyfunc}, { |
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390 "glPushClientAttrib", &dmyfunc}, |
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391 DEF(glPushMatrix), |
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392 DEF(glTexCoord2f), |
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393 DEF(glTexEnvf), |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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394 DEF(glTexImage2D), |
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395 DEF(glTexParameteri), |
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396 DEF(glTexSubImage2D), DEF(glVertex2i), DEF(glViewport), |
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397 #undef DEF |
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398 }; |
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399 |
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400 static void * |
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401 DC_GL_GetProcAddress(_THIS, const char *proc) |
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402 { |
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403 void *ret; |
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404 int i; |
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|
405 |
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406 ret = glKosGetProcAddress(proc); |
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407 if (ret) |
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408 return ret; |
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|
409 |
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410 for (i = 0; i < sizeof(glfuncs) / sizeof(glfuncs[0]); i++) { |
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411 if (SDL_strcmp(proc, glfuncs[i].name) == 0) |
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412 return glfuncs[i].addr; |
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413 } |
509
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|
414 |
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415 return NULL; |
509
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|
416 } |
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|
417 |
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418 static int |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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419 DC_GL_LoadLibrary(_THIS, const char *path) |
509
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|
420 { |
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421 this->gl_config.driver_loaded = 1; |
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|
422 |
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423 return 0; |
509
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|
424 } |
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|
425 |
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426 static int |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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427 DC_GL_GetAttribute(_THIS, SDL_GLattr attrib, int *value) |
509
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|
428 { |
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|
429 GLenum mesa_attrib; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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430 int val; |
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|
431 |
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432 switch (attrib) { |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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433 case SDL_GL_RED_SIZE: |
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434 val = 5; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
435 break; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
436 case SDL_GL_GREEN_SIZE: |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
437 val = 6; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
438 break; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
439 case SDL_GL_BLUE_SIZE: |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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440 val = 5; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
441 break; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
442 case SDL_GL_ALPHA_SIZE: |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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443 val = 0; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
444 break; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
445 case SDL_GL_DOUBLEBUFFER: |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
446 val = 1; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
447 break; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
448 case SDL_GL_DEPTH_SIZE: |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
449 val = 16; /* or 32? */ |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
450 break; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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451 case SDL_GL_STENCIL_SIZE: |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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452 val = 0; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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453 break; |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
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454 case SDL_GL_ACCUM_RED_SIZE: |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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455 val = 0; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
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456 break; |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
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457 case SDL_GL_ACCUM_GREEN_SIZE: |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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458 val = 0; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents:
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459 case SDL_GL_ACCUM_BLUE_SIZE: |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
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460 val = 0; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
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461 break; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
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462 case SDL_GL_ACCUM_ALPHA_SIZE: |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
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463 val = 0; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
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464 break; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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465 default: |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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466 return -1; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
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467 } |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
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468 *value = val; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents:
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469 return 0; |
509
dad72daf44b3
Added initial support for Dreamcast (thanks HERO!)
Sam Lantinga <slouken@libsdl.org>
parents:
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470 } |
dad72daf44b3
Added initial support for Dreamcast (thanks HERO!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff
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471 |
1895
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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472 static void |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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473 DC_GL_SwapBuffers(_THIS) |
509
dad72daf44b3
Added initial support for Dreamcast (thanks HERO!)
Sam Lantinga <slouken@libsdl.org>
parents:
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474 { |
1895
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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475 glKosFinishFrame(); |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
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476 glKosBeginFrame(); |
509
dad72daf44b3
Added initial support for Dreamcast (thanks HERO!)
Sam Lantinga <slouken@libsdl.org>
parents:
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477 } |
dad72daf44b3
Added initial support for Dreamcast (thanks HERO!)
Sam Lantinga <slouken@libsdl.org>
parents:
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478 #endif |
1895
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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479 /* vi: set ts=4 sw=4 expandtab: */ |