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| 221 | struct timeval tv; |
221 | struct timeval tv; |
| 222 | gettimeofday (&tv, 0); |
222 | gettimeofday (&tv, 0); |
| 223 | base = tv.tv_sec + tv.tv_usec / 1.e6; |
223 | base = tv.tv_sec + tv.tv_usec / 1.e6; |
| 224 | } |
224 | } |
| 225 | |
225 | |
| 226 | GLuint SDL_GL_LoadTexture (SDL_Surface * surface, GLfloat * texcoord) |
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| 227 | { |
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| 228 | GLuint texture; |
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| 229 | int w, h; |
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| 230 | SDL_Surface *image; |
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| 231 | SDL_Rect area; |
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| 232 | Uint32 saved_flags; |
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| 233 | Uint8 saved_alpha; |
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| 234 | |
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| 235 | /* Use the surface width and height expanded to powers of 2 */ |
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| 236 | //w = power_of_two (surface->w); |
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| 237 | //h = power_of_two (surface->h); |
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| 238 | w = power_of_two (surface->w); |
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| 239 | h = power_of_two (surface->h); |
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| 240 | texcoord[0] = 0.0f; /* Min X */ |
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| 241 | texcoord[1] = 0.0f; /* Min Y */ |
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| 242 | texcoord[2] = (GLfloat) surface->w / w; /* Max X */ |
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| 243 | texcoord[3] = (GLfloat) surface->h / h; /* Max Y */ |
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| 244 | |
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| 245 | image = SDL_CreateRGBSurface (SDL_SWSURFACE, w, h, 32, |
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| 246 | #if SDL_BYTEORDER == SDL_LIL_ENDIAN /* OpenGL RGBA masks */ |
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| 247 | 0x000000FF, 0x0000FF00, 0x00FF0000, 0xFF000000 |
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| 248 | #else |
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| 249 | 0xFF000000, 0x00FF0000, 0x0000FF00, 0x000000FF |
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| 250 | #endif |
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| 251 | ); |
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| 252 | if (image == NULL) |
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| 253 | { |
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| 254 | return 0; |
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| 255 | } |
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| 256 | |
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| 257 | /* Save the alpha blending attributes */ |
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| 258 | saved_flags = surface->flags & (SDL_SRCALPHA | SDL_RLEACCELOK); |
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| 259 | saved_alpha = surface->format->alpha; |
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| 260 | if ((saved_flags & SDL_SRCALPHA) == SDL_SRCALPHA) |
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| 261 | { |
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| 262 | SDL_SetAlpha (surface, 0, 0); |
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| 263 | } |
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| 264 | |
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| 265 | /* Copy the surface into the GL texture image */ |
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| 266 | area.x = 0; |
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| 267 | area.y = 0; |
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| 268 | area.w = surface->w; |
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| 269 | area.h = surface->h; |
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| 270 | SDL_BlitSurface (surface, &area, image, &area); |
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| 271 | |
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| 272 | /* Restore the alpha blending attributes */ |
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| 273 | if ((saved_flags & SDL_SRCALPHA) == SDL_SRCALPHA) |
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| 274 | { |
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| 275 | SDL_SetAlpha (surface, saved_flags, saved_alpha); |
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| 276 | } |
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| 277 | |
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| 278 | /* Create an OpenGL texture for the image */ |
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| 279 | glGenTextures (1, &texture); |
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| 280 | glBindTexture (GL_TEXTURE_2D, texture); |
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| 281 | glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); |
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| 282 | glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); |
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| 283 | glTexImage2D (GL_TEXTURE_2D, |
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| 284 | 0, |
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| 285 | GL_RGBA, w, h, 0, GL_RGBA, GL_UNSIGNED_BYTE, image->pixels); |
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| 286 | SDL_FreeSurface (image); /* No longer needed */ |
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| 287 | |
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| 288 | return texture; |
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| 289 | } |
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| 290 | |
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| 291 | void render_text (GLint x, GLint y, const char *str) |
226 | void render_text (GLint x, GLint y, const char *str) |
| 292 | { |
227 | { |
| 293 | glRasterPos2i (x, y); |
228 | glRasterPos2i (x, y); |
| 294 | |
229 | |
| 295 | while (!*str) |
230 | while (!*str) |
