Mercurial > sdl-ios-xcode
annotate test/testgl.c @ 1257:448a9a64537b
[PATCH] SDL_GetVideoMode() does not find best mode, part 2
Following commit 1.51, I come accross a problem when SDL must choose between
several video modes that could suit the one asked.
If I ask 320x240 with this list:
768x480 768x240 640x400 640x200 384x480 384x240 320x400 320x200
The smallest selectables modes are 384x240 and 320x400. And SDL choose the later
in this list, but 384x240 is more suitable. So I added a check to compare
the pixel count (surface) of modes, and select the one which has the smallest
pixel count.
In my example, 384x240 has 92160 pixels, and 320x400 has 128000 pixels. So now
SDL will choose 384x240 for the asked 320x240 mode.
| author | Patrice Mandin <patmandin@gmail.com> |
|---|---|
| date | Thu, 19 Jan 2006 21:28:52 +0000 |
| parents | 4272450dd8d0 |
| children | 670e74bf5cc8 |
| rev | line source |
|---|---|
| 0 | 1 #include <stdlib.h> |
| 2 #include <stdio.h> | |
| 3 #include <string.h> | |
| 4 #include <math.h> | |
| 5 | |
| 6 #include "SDL.h" | |
| 7 | |
| 8 #ifdef HAVE_OPENGL | |
|
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9 |
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10 #include "SDL_opengl.h" |
| 0 | 11 |
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12 /* Undefine this if you want a flat cube instead of a rainbow cube */ |
| 0 | 13 #define SHADED_CUBE |
| 14 | |
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15 /* Define this to be the name of the logo image to use with -logo */ |
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16 #define LOGO_FILE "icon.bmp" |
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17 |
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18 /* The SDL_OPENGLBLIT interface is deprecated. |
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19 The code is still available for benchmark purposes though. |
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20 */ |
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21 |
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22 static SDL_bool USE_DEPRECATED_OPENGLBLIT = SDL_FALSE; |
| 0 | 23 |
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24 static SDL_Surface *global_image = NULL; |
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25 static GLuint global_texture = 0; |
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26 static GLuint cursor_texture = 0; |
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27 |
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28 /**********************************************************************/ |
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29 |
| 0 | 30 void HotKey_ToggleFullScreen(void) |
| 31 { | |
| 32 SDL_Surface *screen; | |
| 33 | |
| 34 screen = SDL_GetVideoSurface(); | |
| 35 if ( SDL_WM_ToggleFullScreen(screen) ) { | |
| 36 printf("Toggled fullscreen mode - now %s\n", | |
| 37 (screen->flags&SDL_FULLSCREEN) ? "fullscreen" : "windowed"); | |
| 38 } else { | |
| 39 printf("Unable to toggle fullscreen mode\n"); | |
| 40 } | |
| 41 } | |
| 42 | |
| 43 void HotKey_ToggleGrab(void) | |
| 44 { | |
| 45 SDL_GrabMode mode; | |
| 46 | |
| 47 printf("Ctrl-G: toggling input grab!\n"); | |
| 48 mode = SDL_WM_GrabInput(SDL_GRAB_QUERY); | |
| 49 if ( mode == SDL_GRAB_ON ) { | |
| 50 printf("Grab was on\n"); | |
| 51 } else { | |
| 52 printf("Grab was off\n"); | |
| 53 } | |
| 54 mode = SDL_WM_GrabInput(!mode); | |
| 55 if ( mode == SDL_GRAB_ON ) { | |
| 56 printf("Grab is now on\n"); | |
| 57 } else { | |
| 58 printf("Grab is now off\n"); | |
| 59 } | |
| 60 } | |
| 61 | |
| 62 void HotKey_Iconify(void) | |
| 63 { | |
| 64 printf("Ctrl-Z: iconifying window!\n"); | |
| 65 SDL_WM_IconifyWindow(); | |
| 66 } | |
| 67 | |
| 68 int HandleEvent(SDL_Event *event) | |
| 69 { | |
| 70 int done; | |
| 71 | |
| 72 done = 0; | |
| 73 switch( event->type ) { | |
| 74 case SDL_ACTIVEEVENT: | |
| 75 /* See what happened */ | |
| 76 printf( "app %s ", event->active.gain ? "gained" : "lost" ); | |
| 77 if ( event->active.state & SDL_APPACTIVE ) { | |
| 78 printf( "active " ); | |
| 79 } else if ( event->active.state & SDL_APPMOUSEFOCUS ) { | |
| 80 printf( "mouse " ); | |
| 81 } else if ( event->active.state & SDL_APPINPUTFOCUS ) { | |
| 82 printf( "input " ); | |
| 83 } | |
| 84 printf( "focus\n" ); | |
| 85 break; | |
| 86 | |
| 87 | |
| 88 case SDL_KEYDOWN: | |
| 89 if ( event->key.keysym.sym == SDLK_ESCAPE ) { | |
| 90 done = 1; | |
| 91 } | |
| 92 if ( (event->key.keysym.sym == SDLK_g) && | |
| 93 (event->key.keysym.mod & KMOD_CTRL) ) { | |
| 94 HotKey_ToggleGrab(); | |
| 95 } | |
| 96 if ( (event->key.keysym.sym == SDLK_z) && | |
| 97 (event->key.keysym.mod & KMOD_CTRL) ) { | |
| 98 HotKey_Iconify(); | |
| 99 } | |
| 100 if ( (event->key.keysym.sym == SDLK_RETURN) && | |
| 101 (event->key.keysym.mod & KMOD_ALT) ) { | |
| 102 HotKey_ToggleFullScreen(); | |
| 103 } | |
| 104 printf("key '%s' pressed\n", | |
| 105 SDL_GetKeyName(event->key.keysym.sym)); | |
| 106 break; | |
| 107 case SDL_QUIT: | |
| 108 done = 1; | |
| 109 break; | |
| 110 } | |
| 111 return(done); | |
| 112 } | |
| 113 | |
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114 void SDL_GL_Enter2DMode() |
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115 { |
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116 SDL_Surface *screen = SDL_GetVideoSurface(); |
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117 |
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118 /* Note, there may be other things you need to change, |
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119 depending on how you have your OpenGL state set up. |
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120 */ |
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121 glPushAttrib(GL_ENABLE_BIT); |
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122 glDisable(GL_DEPTH_TEST); |
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123 glDisable(GL_CULL_FACE); |
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124 glEnable(GL_TEXTURE_2D); |
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125 |
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126 /* This allows alpha blending of 2D textures with the scene */ |
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127 glEnable(GL_BLEND); |
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128 glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); |
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129 |
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130 glViewport(0, 0, screen->w, screen->h); |
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131 |
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132 glMatrixMode(GL_PROJECTION); |
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133 glPushMatrix(); |
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134 glLoadIdentity(); |
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135 |
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136 glOrtho(0.0, (GLdouble)screen->w, (GLdouble)screen->h, 0.0, 0.0, 1.0); |
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137 |
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138 glMatrixMode(GL_MODELVIEW); |
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139 glPushMatrix(); |
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140 glLoadIdentity(); |
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141 |
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142 glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_DECAL); |
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143 } |
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144 |
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145 void SDL_GL_Leave2DMode() |
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146 { |
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147 glMatrixMode(GL_MODELVIEW); |
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148 glPopMatrix(); |
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149 |
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150 glMatrixMode(GL_PROJECTION); |
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151 glPopMatrix(); |
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152 |
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153 glPopAttrib(); |
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154 } |
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155 |
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156 /* Quick utility function for texture creation */ |
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157 static int power_of_two(int input) |
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158 { |
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159 int value = 1; |
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160 |
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161 while ( value < input ) { |
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162 value <<= 1; |
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163 } |
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164 return value; |
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165 } |
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166 |
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167 GLuint SDL_GL_LoadTexture(SDL_Surface *surface, GLfloat *texcoord) |
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168 { |
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169 GLuint texture; |
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170 int w, h; |
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171 SDL_Surface *image; |
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172 SDL_Rect area; |
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173 Uint32 saved_flags; |
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174 Uint8 saved_alpha; |
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175 |
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176 /* Use the surface width and height expanded to powers of 2 */ |
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177 w = power_of_two(surface->w); |
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178 h = power_of_two(surface->h); |
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179 texcoord[0] = 0.0f; /* Min X */ |
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180 texcoord[1] = 0.0f; /* Min Y */ |
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181 texcoord[2] = (GLfloat)surface->w / w; /* Max X */ |
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182 texcoord[3] = (GLfloat)surface->h / h; /* Max Y */ |
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183 |
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184 image = SDL_CreateRGBSurface( |
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185 SDL_SWSURFACE, |
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186 w, h, |
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187 32, |
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188 #if SDL_BYTEORDER == SDL_LIL_ENDIAN /* OpenGL RGBA masks */ |
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189 0x000000FF, |
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190 0x0000FF00, |
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191 0x00FF0000, |
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192 0xFF000000 |
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193 #else |
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194 0xFF000000, |
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195 0x00FF0000, |
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196 0x0000FF00, |
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197 0x000000FF |
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198 #endif |
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199 ); |
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200 if ( image == NULL ) { |
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201 return 0; |
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202 } |
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203 |
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204 /* Save the alpha blending attributes */ |
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205 saved_flags = surface->flags&(SDL_SRCALPHA|SDL_RLEACCELOK); |
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206 saved_alpha = surface->format->alpha; |
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207 if ( (saved_flags & SDL_SRCALPHA) == SDL_SRCALPHA ) { |
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208 SDL_SetAlpha(surface, 0, 0); |
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209 } |
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210 |
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211 /* Copy the surface into the GL texture image */ |
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212 area.x = 0; |
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213 area.y = 0; |
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214 area.w = surface->w; |
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215 area.h = surface->h; |
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216 SDL_BlitSurface(surface, &area, image, &area); |
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217 |
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218 /* Restore the alpha blending attributes */ |
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219 if ( (saved_flags & SDL_SRCALPHA) == SDL_SRCALPHA ) { |
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220 SDL_SetAlpha(surface, saved_flags, saved_alpha); |
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221 } |
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222 |
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223 /* Create an OpenGL texture for the image */ |
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224 glGenTextures(1, &texture); |
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225 glBindTexture(GL_TEXTURE_2D, texture); |
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226 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); |
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227 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); |
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228 glTexImage2D(GL_TEXTURE_2D, |
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229 0, |
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230 GL_RGBA, |
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231 w, h, |
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232 0, |
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233 GL_RGBA, |
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234 GL_UNSIGNED_BYTE, |
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235 image->pixels); |
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236 SDL_FreeSurface(image); /* No longer needed */ |
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237 |
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238 return texture; |
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239 } |
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240 |
|
933
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241 void DrawLogoCursor(void) |
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242 { |
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243 static GLfloat texMinX, texMinY; |
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244 static GLfloat texMaxX, texMaxY; |
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245 static int w, h; |
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246 int x, y; |
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247 |
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248 SDL_Surface *screen = SDL_GetVideoSurface(); |
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249 |
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250 if ( ! cursor_texture ) { |
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251 SDL_Surface *image; |
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252 GLfloat texcoord[4]; |
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253 |
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254 /* Load the image (could use SDL_image library here) */ |
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255 image = SDL_LoadBMP(LOGO_FILE); |
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256 if ( image == NULL ) { |
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257 return; |
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258 } |
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259 w = image->w; |
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260 h = image->h; |
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261 |
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262 /* Convert the image into an OpenGL texture */ |
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263 cursor_texture = SDL_GL_LoadTexture(image, texcoord); |
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264 |
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265 /* Make texture coordinates easy to understand */ |
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266 texMinX = texcoord[0]; |
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267 texMinY = texcoord[1]; |
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268 texMaxX = texcoord[2]; |
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269 texMaxY = texcoord[3]; |
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270 |
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271 /* We don't need the original image anymore */ |
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272 SDL_FreeSurface(image); |
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273 |
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274 /* Make sure that the texture conversion is okay */ |
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275 if ( ! cursor_texture ) { |
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276 return; |
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277 } |
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278 } |
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279 |
|
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280 /* Move the image around */ |
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281 SDL_GetMouseState(&x, &y); |
|
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282 x -= w/2; |
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283 y -= h/2; |
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284 |
|
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285 /* Show the image on the screen */ |
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286 SDL_GL_Enter2DMode(); |
|
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287 glBindTexture(GL_TEXTURE_2D, cursor_texture); |
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288 glBegin(GL_TRIANGLE_STRIP); |
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289 glTexCoord2f(texMinX, texMinY); glVertex2i(x, y ); |
|
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290 glTexCoord2f(texMaxX, texMinY); glVertex2i(x+w, y ); |
|
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291 glTexCoord2f(texMinX, texMaxY); glVertex2i(x, y+h); |
|
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292 glTexCoord2f(texMaxX, texMaxY); glVertex2i(x+w, y+h); |
|
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293 glEnd(); |
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294 SDL_GL_Leave2DMode(); |
|
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295 } |
|
492
c59692dcdce0
*** empty log message ***
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|
296 |
|
234
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297 void DrawLogoTexture(void) |
|
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298 { |
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299 static GLfloat texMinX, texMinY; |
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300 static GLfloat texMaxX, texMaxY; |
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301 static int x = 0; |
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302 static int y = 0; |
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303 static int w, h; |
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304 static int delta_x = 1; |
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305 static int delta_y = 1; |
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306 static Uint32 last_moved = 0; |
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307 |
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308 SDL_Surface *screen = SDL_GetVideoSurface(); |
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309 |
|
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310 if ( ! global_texture ) { |
|
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311 SDL_Surface *image; |
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312 GLfloat texcoord[4]; |
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313 |
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314 /* Load the image (could use SDL_image library here) */ |
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315 image = SDL_LoadBMP(LOGO_FILE); |
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316 if ( image == NULL ) { |
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317 return; |
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318 } |
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319 w = image->w; |
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320 h = image->h; |
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321 |
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322 /* Convert the image into an OpenGL texture */ |
|
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323 global_texture = SDL_GL_LoadTexture(image, texcoord); |
|
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324 |
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325 /* Make texture coordinates easy to understand */ |
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326 texMinX = texcoord[0]; |
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327 texMinY = texcoord[1]; |
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328 texMaxX = texcoord[2]; |
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329 texMaxY = texcoord[3]; |
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330 |
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331 /* We don't need the original image anymore */ |
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332 SDL_FreeSurface(image); |
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333 |
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334 /* Make sure that the texture conversion is okay */ |
|
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335 if ( ! global_texture ) { |
|
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336 return; |
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337 } |
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338 } |
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339 |
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340 /* Move the image around */ |
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341 x += delta_x; |
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342 if ( x < 0 ) { |
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343 x = 0; |
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344 delta_x = -delta_x; |
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345 } else |
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346 if ( (x+w) > screen->w ) { |
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347 x = screen->w-w; |
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348 delta_x = -delta_x; |
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349 } |
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350 y += delta_y; |
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351 if ( y < 0 ) { |
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352 y = 0; |
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353 delta_y = -delta_y; |
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354 } else |
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355 if ( (y+h) > screen->h ) { |
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356 y = screen->h-h; |
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357 delta_y = -delta_y; |
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358 } |
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359 |
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360 /* Show the image on the screen */ |
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361 SDL_GL_Enter2DMode(); |
|
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362 glBindTexture(GL_TEXTURE_2D, global_texture); |
|
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363 glBegin(GL_TRIANGLE_STRIP); |
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364 glTexCoord2f(texMinX, texMinY); glVertex2i(x, y ); |
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365 glTexCoord2f(texMaxX, texMinY); glVertex2i(x+w, y ); |
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366 glTexCoord2f(texMinX, texMaxY); glVertex2i(x, y+h); |
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367 glTexCoord2f(texMaxX, texMaxY); glVertex2i(x+w, y+h); |
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368 glEnd(); |
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369 SDL_GL_Leave2DMode(); |
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370 } |
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371 |
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372 /* This code is deprecated, but available for speed comparisons */ |
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373 void DrawLogoBlit(void) |
| 0 | 374 { |
| 375 static int x = 0; | |
| 376 static int y = 0; | |
|
233
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SDL_OPENGLBLIT is deprecated, show the "right way" of doing things
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377 static int w, h; |
| 0 | 378 static int delta_x = 1; |
| 379 static int delta_y = 1; | |
| 380 static Uint32 last_moved = 0; | |
| 381 | |
| 382 SDL_Rect dst; | |
|
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383 SDL_Surface *screen = SDL_GetVideoSurface(); |
| 0 | 384 |
|
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385 if ( global_image == NULL ) { |
| 0 | 386 SDL_Surface *temp; |
| 387 | |
|
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388 /* Load the image (could use SDL_image library here) */ |
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389 temp = SDL_LoadBMP(LOGO_FILE); |
| 0 | 390 if ( temp == NULL ) { |
| 391 return; | |
| 392 } | |
|
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393 w = temp->w; |
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394 h = temp->h; |
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395 |
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396 /* Convert the image into the screen format */ |
|
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397 global_image = SDL_CreateRGBSurface( |
| 0 | 398 SDL_SWSURFACE, |
|
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399 w, h, |
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400 screen->format->BitsPerPixel, |
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401 screen->format->Rmask, |
|
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402 screen->format->Gmask, |
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403 screen->format->Bmask, |
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404 screen->format->Amask); |
|
492
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|
405 if ( global_image ) { |
|
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|
406 SDL_BlitSurface(temp, NULL, global_image, NULL); |
| 0 | 407 } |
| 408 SDL_FreeSurface(temp); | |
|
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409 |
|
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410 /* Make sure that the texture conversion is okay */ |
|
492
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|
411 if ( ! global_image ) { |
| 0 | 412 return; |
| 413 } | |
| 414 } | |
| 415 | |
|
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416 /* Move the image around |
| 0 | 417 Note that we do not clear the old position. This is because we |
| 418 perform a glClear() which clears the framebuffer and then only | |
| 419 update the new area. | |
| 420 Note that you can also achieve interesting effects by modifying | |
| 421 the screen surface alpha channel. It's set to 255 by default.. | |
| 422 */ | |
|
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423 x += delta_x; |
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424 if ( x < 0 ) { |
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425 x = 0; |
|
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426 delta_x = -delta_x; |
|
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427 } else |
|
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428 if ( (x+w) > screen->w ) { |
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429 x = screen->w-w; |
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430 delta_x = -delta_x; |
| 0 | 431 } |
|
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432 y += delta_y; |
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433 if ( y < 0 ) { |
|
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434 y = 0; |
|
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435 delta_y = -delta_y; |
|
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436 } else |
|
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Modified the logo texture load to accept any width/height image
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437 if ( (y+h) > screen->h ) { |
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438 y = screen->h-h; |
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439 delta_y = -delta_y; |
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440 } |
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441 dst.x = x; |
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442 dst.y = y; |
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443 dst.w = w; |
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444 dst.h = h; |
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445 SDL_BlitSurface(global_image, NULL, screen, &dst); |
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446 |
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447 /* Show the image on the screen */ |
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448 SDL_UpdateRects(screen, 1, &dst); |
| 0 | 449 } |
| 450 | |
| 451 int RunGLTest( int argc, char* argv[], | |
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452 int logo, int logocursor, int slowly, int bpp, float gamma, int noframe, int fsaa ) |
| 0 | 453 { |
| 454 int i; | |
| 455 int rgb_size[3]; | |
| 456 int w = 640; | |
| 457 int h = 480; | |
| 458 int done = 0; | |
| 459 int frames; | |
| 460 Uint32 start_time, this_time; | |
| 461 float color[8][3]= {{ 1.0, 1.0, 0.0}, | |
| 462 { 1.0, 0.0, 0.0}, | |
| 463 { 0.0, 0.0, 0.0}, | |
| 464 { 0.0, 1.0, 0.0}, | |
| 465 { 0.0, 1.0, 1.0}, | |
| 466 { 1.0, 1.0, 1.0}, | |
| 467 { 1.0, 0.0, 1.0}, | |
| 468 { 0.0, 0.0, 1.0}}; | |
| 469 float cube[8][3]= {{ 0.5, 0.5, -0.5}, | |
| 470 { 0.5, -0.5, -0.5}, | |
| 471 {-0.5, -0.5, -0.5}, | |
| 472 {-0.5, 0.5, -0.5}, | |
| 473 {-0.5, 0.5, 0.5}, | |
| 474 { 0.5, 0.5, 0.5}, | |
| 475 { 0.5, -0.5, 0.5}, | |
| 476 {-0.5, -0.5, 0.5}}; | |
| 477 Uint32 video_flags; | |
| 478 int value; | |
| 479 | |
| 480 if( SDL_Init( SDL_INIT_VIDEO ) < 0 ) { | |
| 481 fprintf(stderr,"Couldn't initialize SDL: %s\n",SDL_GetError()); | |
| 482 exit( 1 ); | |
| 483 } | |
| 484 | |
| 485 /* See if we should detect the display depth */ | |
| 486 if ( bpp == 0 ) { | |
| 487 if ( SDL_GetVideoInfo()->vfmt->BitsPerPixel <= 8 ) { | |
| 488 bpp = 8; | |
| 489 } else { | |
| 490 bpp = 16; /* More doesn't seem to work */ | |
| 491 } | |
| 492 } | |
| 493 | |
| 494 /* Set the flags we want to use for setting the video mode */ | |
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495 if ( logo && USE_DEPRECATED_OPENGLBLIT ) { |
| 0 | 496 video_flags = SDL_OPENGLBLIT; |
| 497 } else { | |
| 498 video_flags = SDL_OPENGL; | |
| 499 } | |
| 500 for ( i=1; argv[i]; ++i ) { | |
| 501 if ( strcmp(argv[1], "-fullscreen") == 0 ) { | |
| 502 video_flags |= SDL_FULLSCREEN; | |
| 503 } | |
| 504 } | |
| 505 | |
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506 if (noframe) { |
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507 video_flags |= SDL_NOFRAME; |
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508 } |
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509 |
| 0 | 510 /* Initialize the display */ |
| 511 switch (bpp) { | |
| 512 case 8: | |
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513 rgb_size[0] = 3; |
| 0 | 514 rgb_size[1] = 3; |
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515 rgb_size[2] = 2; |
| 0 | 516 break; |
| 517 case 15: | |
| 518 case 16: | |
| 519 rgb_size[0] = 5; | |
| 520 rgb_size[1] = 5; | |
| 521 rgb_size[2] = 5; | |
| 522 break; | |
| 523 default: | |
| 524 rgb_size[0] = 8; | |
| 525 rgb_size[1] = 8; | |
| 526 rgb_size[2] = 8; | |
| 527 break; | |
| 528 } | |
| 529 SDL_GL_SetAttribute( SDL_GL_RED_SIZE, rgb_size[0] ); | |
| 530 SDL_GL_SetAttribute( SDL_GL_GREEN_SIZE, rgb_size[1] ); | |
| 531 SDL_GL_SetAttribute( SDL_GL_BLUE_SIZE, rgb_size[2] ); | |
| 532 SDL_GL_SetAttribute( SDL_GL_DEPTH_SIZE, 16 ); | |
| 533 SDL_GL_SetAttribute( SDL_GL_DOUBLEBUFFER, 1 ); | |
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534 if ( fsaa ) { |
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535 SDL_GL_SetAttribute( SDL_GL_MULTISAMPLEBUFFERS, 1 ); |
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536 SDL_GL_SetAttribute( SDL_GL_MULTISAMPLESAMPLES, fsaa ); |
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537 } |
| 0 | 538 if ( SDL_SetVideoMode( w, h, bpp, video_flags ) == NULL ) { |
| 539 fprintf(stderr, "Couldn't set GL mode: %s\n", SDL_GetError()); | |
| 540 SDL_Quit(); | |
| 541 exit(1); | |
| 542 } | |
| 543 | |
| 544 printf("Screen BPP: %d\n", SDL_GetVideoSurface()->format->BitsPerPixel); | |
| 545 printf("\n"); | |
| 546 printf( "Vendor : %s\n", glGetString( GL_VENDOR ) ); | |
| 547 printf( "Renderer : %s\n", glGetString( GL_RENDERER ) ); | |
| 548 printf( "Version : %s\n", glGetString( GL_VERSION ) ); | |
| 549 printf( "Extensions : %s\n", glGetString( GL_EXTENSIONS ) ); | |
| 550 printf("\n"); | |
| 551 | |
| 552 SDL_GL_GetAttribute( SDL_GL_RED_SIZE, &value ); | |
| 553 printf( "SDL_GL_RED_SIZE: requested %d, got %d\n", rgb_size[0],value); | |
| 554 SDL_GL_GetAttribute( SDL_GL_GREEN_SIZE, &value ); | |
| 555 printf( "SDL_GL_GREEN_SIZE: requested %d, got %d\n", rgb_size[1],value); | |
| 556 SDL_GL_GetAttribute( SDL_GL_BLUE_SIZE, &value ); | |
| 557 printf( "SDL_GL_BLUE_SIZE: requested %d, got %d\n", rgb_size[2],value); | |
| 558 SDL_GL_GetAttribute( SDL_GL_DEPTH_SIZE, &value ); | |
| 559 printf( "SDL_GL_DEPTH_SIZE: requested %d, got %d\n", bpp, value ); | |
| 560 SDL_GL_GetAttribute( SDL_GL_DOUBLEBUFFER, &value ); | |
| 561 printf( "SDL_GL_DOUBLEBUFFER: requested 1, got %d\n", value ); | |
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562 if ( fsaa ) { |
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563 SDL_GL_GetAttribute( SDL_GL_MULTISAMPLEBUFFERS, &value ); |
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564 printf( "SDL_GL_MULTISAMPLEBUFFERS: requested 1, got %d\n", value ); |
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565 SDL_GL_GetAttribute( SDL_GL_MULTISAMPLESAMPLES, &value ); |
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566 printf( "SDL_GL_MULTISAMPLESAMPLES: requested %d, got %d\n", fsaa, value ); |
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567 } |
| 0 | 568 |
| 569 /* Set the window manager title bar */ | |
| 570 SDL_WM_SetCaption( "SDL GL test", "testgl" ); | |
| 571 | |
| 572 /* Set the gamma for the window */ | |
| 573 if ( gamma != 0.0 ) { | |
| 574 SDL_SetGamma(gamma, gamma, gamma); | |
| 575 } | |
| 576 | |
| 577 glViewport( 0, 0, w, h ); | |
| 578 glMatrixMode( GL_PROJECTION ); | |
| 579 glLoadIdentity( ); | |
| 580 | |
| 581 glOrtho( -2.0, 2.0, -2.0, 2.0, -20.0, 20.0 ); | |
| 582 | |
| 583 glMatrixMode( GL_MODELVIEW ); | |
| 584 glLoadIdentity( ); | |
| 585 | |
| 586 glEnable(GL_DEPTH_TEST); | |
| 587 | |
| 588 glDepthFunc(GL_LESS); | |
| 589 | |
| 590 glShadeModel(GL_SMOOTH); | |
| 591 | |
| 592 /* Loop until done. */ | |
| 593 start_time = SDL_GetTicks(); | |
| 594 frames = 0; | |
| 595 while( !done ) { | |
| 596 GLenum gl_error; | |
| 597 char* sdl_error; | |
| 598 SDL_Event event; | |
| 599 | |
| 600 /* Do our drawing, too. */ | |
| 601 glClearColor( 0.0, 0.0, 0.0, 1.0 ); | |
| 602 glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); | |
| 603 | |
| 604 glBegin( GL_QUADS ); | |
| 605 | |
| 606 #ifdef SHADED_CUBE | |
| 607 glColor3fv(color[0]); | |
| 608 glVertex3fv(cube[0]); | |
| 609 glColor3fv(color[1]); | |
| 610 glVertex3fv(cube[1]); | |
| 611 glColor3fv(color[2]); | |
| 612 glVertex3fv(cube[2]); | |
| 613 glColor3fv(color[3]); | |
| 614 glVertex3fv(cube[3]); | |
| 615 | |
| 616 glColor3fv(color[3]); | |
| 617 glVertex3fv(cube[3]); | |
| 618 glColor3fv(color[4]); | |
| 619 glVertex3fv(cube[4]); | |
| 620 glColor3fv(color[7]); | |
| 621 glVertex3fv(cube[7]); | |
| 622 glColor3fv(color[2]); | |
| 623 glVertex3fv(cube[2]); | |
| 624 | |
| 625 glColor3fv(color[0]); | |
| 626 glVertex3fv(cube[0]); | |
| 627 glColor3fv(color[5]); | |
| 628 glVertex3fv(cube[5]); | |
| 629 glColor3fv(color[6]); | |
| 630 glVertex3fv(cube[6]); | |
| 631 glColor3fv(color[1]); | |
| 632 glVertex3fv(cube[1]); | |
| 633 | |
| 634 glColor3fv(color[5]); | |
| 635 glVertex3fv(cube[5]); | |
| 636 glColor3fv(color[4]); | |
| 637 glVertex3fv(cube[4]); | |
| 638 glColor3fv(color[7]); | |
| 639 glVertex3fv(cube[7]); | |
| 640 glColor3fv(color[6]); | |
| 641 glVertex3fv(cube[6]); | |
| 642 | |
| 643 glColor3fv(color[5]); | |
| 644 glVertex3fv(cube[5]); | |
| 645 glColor3fv(color[0]); | |
| 646 glVertex3fv(cube[0]); | |
| 647 glColor3fv(color[3]); | |
| 648 glVertex3fv(cube[3]); | |
| 649 glColor3fv(color[4]); | |
| 650 glVertex3fv(cube[4]); | |
| 651 | |
| 652 glColor3fv(color[6]); | |
| 653 glVertex3fv(cube[6]); | |
| 654 glColor3fv(color[1]); | |
| 655 glVertex3fv(cube[1]); | |
| 656 glColor3fv(color[2]); | |
| 657 glVertex3fv(cube[2]); | |
| 658 glColor3fv(color[7]); | |
| 659 glVertex3fv(cube[7]); | |
| 660 #else // flat cube | |
| 661 glColor3f(1.0, 0.0, 0.0); | |
| 662 glVertex3fv(cube[0]); | |
| 663 glVertex3fv(cube[1]); | |
| 664 glVertex3fv(cube[2]); | |
| 665 glVertex3fv(cube[3]); | |
| 666 | |
| 667 glColor3f(0.0, 1.0, 0.0); | |
| 668 glVertex3fv(cube[3]); | |
| 669 glVertex3fv(cube[4]); | |
| 670 glVertex3fv(cube[7]); | |
| 671 glVertex3fv(cube[2]); | |
| 672 | |
| 673 glColor3f(0.0, 0.0, 1.0); | |
| 674 glVertex3fv(cube[0]); | |
| 675 glVertex3fv(cube[5]); | |
| 676 glVertex3fv(cube[6]); | |
| 677 glVertex3fv(cube[1]); | |
| 678 | |
| 679 glColor3f(0.0, 1.0, 1.0); | |
| 680 glVertex3fv(cube[5]); | |
| 681 glVertex3fv(cube[4]); | |
| 682 glVertex3fv(cube[7]); | |
| 683 glVertex3fv(cube[6]); | |
| 684 | |
| 685 glColor3f(1.0, 1.0, 0.0); | |
| 686 glVertex3fv(cube[5]); | |
| 687 glVertex3fv(cube[0]); | |
| 688 glVertex3fv(cube[3]); | |
| 689 glVertex3fv(cube[4]); | |
| 690 | |
| 691 glColor3f(1.0, 0.0, 1.0); | |
| 692 glVertex3fv(cube[6]); | |
| 693 glVertex3fv(cube[1]); | |
| 694 glVertex3fv(cube[2]); | |
| 695 glVertex3fv(cube[7]); | |
| 696 #endif /* SHADED_CUBE */ | |
| 697 | |
| 698 glEnd( ); | |
| 699 | |
| 700 glMatrixMode(GL_MODELVIEW); | |
| 701 glRotatef(5.0, 1.0, 1.0, 1.0); | |
| 702 | |
| 703 /* Draw 2D logo onto the 3D display */ | |
| 704 if ( logo ) { | |
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705 if ( USE_DEPRECATED_OPENGLBLIT ) { |
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706 DrawLogoBlit(); |
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707 } else { |
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708 DrawLogoTexture(); |
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709 } |
| 0 | 710 } |
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711 if ( logocursor ) { |
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712 DrawLogoCursor(); |
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713 } |
| 0 | 714 |
| 715 SDL_GL_SwapBuffers( ); | |
| 716 | |
| 717 /* Check for error conditions. */ | |
| 718 gl_error = glGetError( ); | |
| 719 | |
| 720 if( gl_error != GL_NO_ERROR ) { | |
| 721 fprintf( stderr, "testgl: OpenGL error: %d\n", gl_error ); | |
| 722 } | |
| 723 | |
| 724 sdl_error = SDL_GetError( ); | |
| 725 | |
| 726 if( sdl_error[0] != '\0' ) { | |
| 727 fprintf(stderr, "testgl: SDL error '%s'\n", sdl_error); | |
| 728 SDL_ClearError(); | |
| 729 } | |
| 730 | |
| 731 /* Allow the user to see what's happening */ | |
| 732 if ( slowly ) { | |
| 733 SDL_Delay( 20 ); | |
| 734 } | |
| 735 | |
| 736 /* Check if there's a pending event. */ | |
| 737 while( SDL_PollEvent( &event ) ) { | |
| 738 done = HandleEvent(&event); | |
| 739 } | |
| 740 ++frames; | |
| 741 } | |
| 742 | |
| 743 /* Print out the frames per second */ | |
| 744 this_time = SDL_GetTicks(); | |
| 745 if ( this_time != start_time ) { | |
| 746 printf("%2.2f FPS\n", | |
| 747 ((float)frames/(this_time-start_time))*1000.0); | |
| 748 } | |
| 749 | |
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750 if ( global_image ) { |
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751 SDL_FreeSurface(global_image); |
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752 global_image = NULL; |
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753 } |
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754 if ( global_texture ) { |
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755 glDeleteTextures( 1, &global_texture ); |
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756 global_texture = 0; |
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757 } |
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758 if ( cursor_texture ) { |
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759 glDeleteTextures( 1, &cursor_texture ); |
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760 cursor_texture = 0; |
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761 } |
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762 |
| 0 | 763 /* Destroy our GL context, etc. */ |
| 764 SDL_Quit( ); | |
| 765 return(0); | |
| 766 } | |
| 767 | |
| 768 int main(int argc, char *argv[]) | |
| 769 { | |
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770 int i, logo, logocursor; |
| 0 | 771 int numtests; |
| 772 int bpp = 0; | |
| 773 int slowly; | |
| 774 float gamma = 0.0; | |
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775 int noframe = 0; |
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776 int fsaa = 0; |
| 0 | 777 |
| 778 logo = 0; | |
| 779 slowly = 0; | |
| 780 numtests = 1; | |
| 781 for ( i=1; argv[i]; ++i ) { | |
| 782 if ( strcmp(argv[i], "-twice") == 0 ) { | |
| 783 ++numtests; | |
| 784 } | |
| 785 if ( strcmp(argv[i], "-logo") == 0 ) { | |
| 786 logo = 1; | |
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787 USE_DEPRECATED_OPENGLBLIT = SDL_FALSE; |
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788 } |
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789 if ( strcmp(argv[i], "-logoblit") == 0 ) { |
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790 logo = 1; |
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791 USE_DEPRECATED_OPENGLBLIT = SDL_TRUE; |
| 0 | 792 } |
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793 if ( strcmp(argv[i], "-logocursor") == 0 ) { |
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794 logocursor = 1; |
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795 } |
| 0 | 796 if ( strcmp(argv[i], "-slow") == 0 ) { |
| 797 slowly = 1; | |
| 798 } | |
| 799 if ( strcmp(argv[i], "-bpp") == 0 ) { | |
| 800 bpp = atoi(argv[++i]); | |
| 801 } | |
| 802 if ( strcmp(argv[i], "-gamma") == 0 ) { | |
| 803 gamma = (float)atof(argv[++i]); | |
| 804 } | |
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805 if ( strcmp(argv[i], "-noframe") == 0 ) { |
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806 noframe = 1; |
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807 } |
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Date: Thu, 24 Apr 2003 15:13:47 -0400
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808 if ( strcmp(argv[i], "-fsaa") == 0 ) { |
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Date: Thu, 24 Apr 2003 15:13:47 -0400
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809 ++fsaa; |
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Date: Thu, 24 Apr 2003 15:13:47 -0400
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810 } |
| 0 | 811 if ( strncmp(argv[i], "-h", 2) == 0 ) { |
| 812 printf( | |
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813 "Usage: %s [-twice] [-logo] [-logocursor] [-slow] [-bpp n] [-gamma n] [-noframe] [-fsaa] [-fullscreen]\n", |
| 0 | 814 argv[0]); |
| 815 exit(0); | |
| 816 } | |
| 817 } | |
| 818 for ( i=0; i<numtests; ++i ) { | |
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819 RunGLTest(argc, argv, logo, logocursor, slowly, bpp, gamma, noframe, fsaa); |
| 0 | 820 } |
| 821 return 0; | |
| 822 } | |
| 823 | |
| 824 #else /* HAVE_OPENGL */ | |
| 825 | |
| 826 int main(int argc, char *argv[]) | |
| 827 { | |
| 828 printf("No OpenGL support on this system\n"); | |
| 829 return 1; | |
| 830 } | |
| 831 | |
| 832 #endif /* HAVE_OPENGL */ |