| … | |
… | |
| 252 | SDL_FreeSurface (image); /* No longer needed */ |
252 | SDL_FreeSurface (image); /* No longer needed */ |
| 253 | |
253 | |
| 254 | return texture; |
254 | return texture; |
| 255 | } |
255 | } |
| 256 | |
256 | |
| 257 | |
|
|
| 258 | void |
|
|
| 259 | DrawLogoTexture (void) |
|
|
| 260 | { |
|
|
| 261 | static GLfloat texMinX, texMinY; |
|
|
| 262 | static GLfloat texMaxX, texMaxY; |
|
|
| 263 | static int x = 0; |
|
|
| 264 | static int y = 0; |
|
|
| 265 | static int w, h; |
|
|
| 266 | static int delta_x = 1; |
|
|
| 267 | static int delta_y = 1; |
|
|
| 268 | static Uint32 last_moved = 0; |
|
|
| 269 | |
|
|
| 270 | SDL_Surface *screen = SDL_GetVideoSurface (); |
|
|
| 271 | |
|
|
| 272 | if (!global_texture) |
|
|
| 273 | { |
|
|
| 274 | SDL_Surface *image; |
|
|
| 275 | GLfloat texcoord[4]; |
|
|
| 276 | |
|
|
| 277 | /* Load the image (could use SDL_image library here) */ |
|
|
| 278 | image = SDL_LoadBMP (LOGO_FILE); |
|
|
| 279 | if (image == NULL) |
|
|
| 280 | { |
|
|
| 281 | return; |
|
|
| 282 | } |
|
|
| 283 | w = image->w; |
|
|
| 284 | h = image->h; |
|
|
| 285 | |
|
|
| 286 | /* Convert the image into an OpenGL texture */ |
|
|
| 287 | global_texture = SDL_GL_LoadTexture (image, texcoord); |
|
|
| 288 | |
|
|
| 289 | /* Make texture coordinates easy to understand */ |
|
|
| 290 | texMinX = texcoord[0]; |
|
|
| 291 | texMinY = texcoord[1]; |
|
|
| 292 | texMaxX = texcoord[2]; |
|
|
| 293 | texMaxY = texcoord[3]; |
|
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| 294 | |
|
|
| 295 | /* We don't need the original image anymore */ |
|
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| 296 | SDL_FreeSurface (image); |
|
|
| 297 | |
|
|
| 298 | /* Make sure that the texture conversion is okay */ |
|
|
| 299 | if (!global_texture) |
|
|
| 300 | { |
|
|
| 301 | return; |
|
|
| 302 | } |
|
|
| 303 | } |
|
|
| 304 | |
|
|
| 305 | /* Move the image around */ |
|
|
| 306 | x += delta_x; |
|
|
| 307 | if (x < 0) |
|
|
| 308 | { |
|
|
| 309 | x = 0; |
|
|
| 310 | delta_x = -delta_x; |
|
|
| 311 | } |
|
|
| 312 | else if ((x + w) > screen->w) |
|
|
| 313 | { |
|
|
| 314 | x = screen->w - w; |
|
|
| 315 | delta_x = -delta_x; |
|
|
| 316 | } |
|
|
| 317 | y += delta_y; |
|
|
| 318 | if (y < 0) |
|
|
| 319 | { |
|
|
| 320 | y = 0; |
|
|
| 321 | delta_y = -delta_y; |
|
|
| 322 | } |
|
|
| 323 | else if ((y + h) > screen->h) |
|
|
| 324 | { |
|
|
| 325 | y = screen->h - h; |
|
|
| 326 | delta_y = -delta_y; |
|
|
| 327 | } |
|
|
| 328 | |
|
|
| 329 | /* Show the image on the screen */ |
|
|
| 330 | SDL_GL_Enter2DMode (); |
|
|
| 331 | glBindTexture (GL_TEXTURE_2D, global_texture); |
|
|
| 332 | glBegin (GL_TRIANGLE_STRIP); |
|
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| 333 | glTexCoord2f (texMinX, texMinY); |
|
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| 334 | glVertex2i (x, y); |
|
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| 335 | glTexCoord2f (texMaxX, texMinY); |
|
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| 336 | glVertex2i (x + w, y); |
|
|
| 337 | glTexCoord2f (texMinX, texMaxY); |
|
|
| 338 | glVertex2i (x, y + h); |
|
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| 339 | glTexCoord2f (texMaxX, texMaxY); |
|
|
| 340 | glVertex2i (x + w, y + h); |
|
|
| 341 | glEnd (); |
|
|
| 342 | SDL_GL_Leave2DMode (); |
|
|
| 343 | } |
|
|
| 344 | |
|
|
| 345 | int |
257 | int |
| 346 | RunGLTest (int argc, char *argv[], |
258 | RunGLTest (int argc, char *argv[], |
| 347 | int logo, int slowly, int bpp, float gamma, int noframe, int fsaa) |
259 | int logo, int slowly, int bpp, float gamma, int noframe, int fsaa) |
| 348 | { |
260 | { |
| 349 | int i; |
261 | int i; |
| … | |
… | |
| 364 | |
276 | |
| 365 | /* See if we should detect the display depth */ |
277 | /* See if we should detect the display depth */ |
| 366 | if (bpp == 0) |
278 | if (bpp == 0) |
| 367 | { |
279 | { |
| 368 | if (SDL_GetVideoInfo ()->vfmt->BitsPerPixel <= 8) |
280 | if (SDL_GetVideoInfo ()->vfmt->BitsPerPixel <= 8) |
| 369 | { |
|
|
| 370 | bpp = 8; |
281 | bpp = 8; |
| 371 | } |
|
|
| 372 | else |
282 | else |
| 373 | { |
|
|
| 374 | bpp = 16; /* More doesn't seem to work */ |
283 | bpp = 16; /* More doesn't seem to work */ |
| 375 | } |
|
|
| 376 | } |
284 | } |
| 377 | |
285 | |
| 378 | video_flags = SDL_OPENGL; |
286 | video_flags = SDL_OPENGL; |
| 379 | |
287 | |
| 380 | for (i = 1; argv[i]; ++i) |
288 | for (i = 1; argv[i]; ++i) |
| 381 | { |
|
|
| 382 | if (strcmp (argv[1], "-fullscreen") == 0) |
289 | if (strcmp (argv[1], "-fullscreen") == 0) |
| 383 | { |
|
|
| 384 | video_flags |= SDL_FULLSCREEN; |
290 | video_flags |= SDL_FULLSCREEN; |
| 385 | } |
|
|
| 386 | } |
|
|
| 387 | |
291 | |
| 388 | if (noframe) |
292 | if (noframe) |
| 389 | { |
|
|
| 390 | video_flags |= SDL_NOFRAME; |
293 | video_flags |= SDL_NOFRAME; |
| 391 | } |
|
|
| 392 | |
294 | |
| 393 | /* Initialize the display */ |
295 | /* Initialize the display */ |
| 394 | switch (bpp) |
296 | switch (bpp) |
| 395 | { |
297 | { |
| 396 | case 8: |
298 | case 8: |
| 397 | rgb_size[0] = 3; |
299 | rgb_size[0] = 3; |
| 398 | rgb_size[1] = 3; |
300 | rgb_size[1] = 3; |
| 399 | rgb_size[2] = 2; |
301 | rgb_size[2] = 2; |
| 400 | break; |
302 | break; |
|
|
303 | |
| 401 | case 15: |
304 | case 15: |
| 402 | case 16: |
305 | case 16: |
| 403 | rgb_size[0] = 5; |
306 | rgb_size[0] = 5; |
| 404 | rgb_size[1] = 5; |
307 | rgb_size[1] = 5; |
| 405 | rgb_size[2] = 5; |
308 | rgb_size[2] = 5; |
| 406 | break; |
309 | break; |
|
|
310 | |
| 407 | default: |
311 | default: |
| 408 | rgb_size[0] = 8; |
312 | rgb_size[0] = 8; |
| 409 | rgb_size[1] = 8; |
313 | rgb_size[1] = 8; |
| 410 | rgb_size[2] = 8; |
314 | rgb_size[2] = 8; |
| 411 | break; |
315 | break; |
| … | |
… | |
| 413 | SDL_GL_SetAttribute (SDL_GL_RED_SIZE, rgb_size[0]); |
317 | SDL_GL_SetAttribute (SDL_GL_RED_SIZE, rgb_size[0]); |
| 414 | SDL_GL_SetAttribute (SDL_GL_GREEN_SIZE, rgb_size[1]); |
318 | SDL_GL_SetAttribute (SDL_GL_GREEN_SIZE, rgb_size[1]); |
| 415 | SDL_GL_SetAttribute (SDL_GL_BLUE_SIZE, rgb_size[2]); |
319 | SDL_GL_SetAttribute (SDL_GL_BLUE_SIZE, rgb_size[2]); |
| 416 | SDL_GL_SetAttribute (SDL_GL_DEPTH_SIZE, 16); |
320 | SDL_GL_SetAttribute (SDL_GL_DEPTH_SIZE, 16); |
| 417 | SDL_GL_SetAttribute (SDL_GL_DOUBLEBUFFER, 1); |
321 | SDL_GL_SetAttribute (SDL_GL_DOUBLEBUFFER, 1); |
|
|
322 | |
| 418 | if (fsaa) |
323 | if (fsaa) |
| 419 | { |
324 | { |
| 420 | SDL_GL_SetAttribute (SDL_GL_MULTISAMPLEBUFFERS, 1); |
325 | SDL_GL_SetAttribute (SDL_GL_MULTISAMPLEBUFFERS, 1); |
| 421 | SDL_GL_SetAttribute (SDL_GL_MULTISAMPLESAMPLES, fsaa); |
326 | SDL_GL_SetAttribute (SDL_GL_MULTISAMPLESAMPLES, fsaa); |
| 422 | } |
327 | } |
|
|
328 | |
| 423 | if (SDL_SetVideoMode (w, h, bpp, video_flags) == NULL) |
329 | if (SDL_SetVideoMode (w, h, bpp, video_flags) == NULL) |
| 424 | { |
330 | { |
| 425 | fprintf (stderr, "Couldn't set GL mode: %s\n", SDL_GetError ()); |
331 | fprintf (stderr, "Couldn't set GL mode: %s\n", SDL_GetError ()); |
| 426 | SDL_Quit (); |
332 | SDL_Quit (); |
| 427 | exit (1); |
333 | exit (1); |
| … | |
… | |
| 443 | printf ("SDL_GL_BLUE_SIZE: requested %d, got %d\n", rgb_size[2], value); |
349 | printf ("SDL_GL_BLUE_SIZE: requested %d, got %d\n", rgb_size[2], value); |
| 444 | SDL_GL_GetAttribute (SDL_GL_DEPTH_SIZE, &value); |
350 | SDL_GL_GetAttribute (SDL_GL_DEPTH_SIZE, &value); |
| 445 | printf ("SDL_GL_DEPTH_SIZE: requested %d, got %d\n", bpp, value); |
351 | printf ("SDL_GL_DEPTH_SIZE: requested %d, got %d\n", bpp, value); |
| 446 | SDL_GL_GetAttribute (SDL_GL_DOUBLEBUFFER, &value); |
352 | SDL_GL_GetAttribute (SDL_GL_DOUBLEBUFFER, &value); |
| 447 | printf ("SDL_GL_DOUBLEBUFFER: requested 1, got %d\n", value); |
353 | printf ("SDL_GL_DOUBLEBUFFER: requested 1, got %d\n", value); |
|
|
354 | |
| 448 | if (fsaa) |
355 | if (fsaa) |
| 449 | { |
356 | { |
| 450 | SDL_GL_GetAttribute (SDL_GL_MULTISAMPLEBUFFERS, &value); |
357 | SDL_GL_GetAttribute (SDL_GL_MULTISAMPLEBUFFERS, &value); |
| 451 | printf ("SDL_GL_MULTISAMPLEBUFFERS: requested 1, got %d\n", value); |
358 | printf ("SDL_GL_MULTISAMPLEBUFFERS: requested 1, got %d\n", value); |
| 452 | SDL_GL_GetAttribute (SDL_GL_MULTISAMPLESAMPLES, &value); |
359 | SDL_GL_GetAttribute (SDL_GL_MULTISAMPLESAMPLES, &value); |
| … | |
… | |
| 457 | /* Set the window manager title bar */ |
364 | /* Set the window manager title bar */ |
| 458 | SDL_WM_SetCaption ("SDL GL test", "testgl"); |
365 | SDL_WM_SetCaption ("SDL GL test", "testgl"); |
| 459 | |
366 | |
| 460 | /* Set the gamma for the window */ |
367 | /* Set the gamma for the window */ |
| 461 | if (gamma != 0.0) |
368 | if (gamma != 0.0) |
| 462 | { |
|
|
| 463 | SDL_SetGamma (gamma, gamma, gamma); |
369 | SDL_SetGamma (gamma, gamma, gamma); |
| 464 | } |
|
|
| 465 | |
370 | |
| 466 | glViewport (0, 0, w, h); |
371 | view v; |
| 467 | glMatrixMode (GL_PROJECTION); |
372 | v.p = point (0, 0, 0); |
| 468 | glLoadIdentity (); |
373 | v.d = vec3 (0, 0, -1); |
| 469 | |
374 | v.u = vec3 (0, 1, 0); |
| 470 | glOrtho (-2.0, 2.0, -2.0, 2.0, -20.0, 20.0); |
375 | v.w = w; v.h = h; |
|
|
376 | v.fov = 90; |
| 471 | |
377 | |
| 472 | glMatrixMode (GL_MODELVIEW); |
378 | glMatrixMode (GL_MODELVIEW); |
| 473 | glLoadIdentity (); |
379 | glLoadIdentity (); |
| 474 | |
380 | |
| 475 | glEnable (GL_DEPTH_TEST); |
381 | glEnable (GL_DEPTH_TEST); |
| 476 | |
382 | |
| 477 | glDepthFunc (GL_LESS); |
383 | glDepthFunc (GL_LESS); |
| 478 | |
384 | |
| 479 | glShadeModel (GL_SMOOTH); |
385 | glShadeModel (GL_SMOOTH); |
|
|
386 | GLfloat ambient[4] = { 1, 1, 1, 1 }; |
|
|
387 | glEnable (GL_LIGHTING); |
|
|
388 | glEnable (GL_COLOR_MATERIAL); |
|
|
389 | glLightModelfv (GL_LIGHT_MODEL_AMBIENT, ambient); |
| 480 | |
390 | |
| 481 | /* Loop until done. */ |
391 | /* Loop until done. */ |
| 482 | start_time = SDL_GetTicks (); |
392 | start_time = SDL_GetTicks (); |
| 483 | frames = 0; |
393 | frames = 0; |
| 484 | while (!done) |
394 | while (!done) |
| … | |
… | |
| 489 | |
399 | |
| 490 | /* Do our drawing, too. */ |
400 | /* Do our drawing, too. */ |
| 491 | glClearColor (0.0, 0.0, 0.0, 1.0); |
401 | glClearColor (0.0, 0.0, 0.0, 1.0); |
| 492 | glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); |
402 | glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); |
| 493 | |
403 | |
| 494 | glBegin (GL_QUADS); |
404 | static GLfloat ry; |
|
|
405 | ry += 0.1; |
|
|
406 | v.d.x = cos (ry); |
|
|
407 | v.d.z = sin (ry); |
| 495 | |
408 | |
| 496 | glEnd (); |
409 | draw_context c; |
|
|
410 | v.draw (c); |
| 497 | |
411 | |
| 498 | SDL_GL_SwapBuffers (); |
412 | SDL_GL_SwapBuffers (); |
| 499 | |
413 | |
| 500 | /* Check for error conditions. */ |
414 | /* Check for error conditions. */ |
| 501 | gl_error = glGetError (); |
415 | gl_error = glGetError (); |
| 502 | |
416 | |
| 503 | if (gl_error != GL_NO_ERROR) |
417 | if (gl_error != GL_NO_ERROR) |
| 504 | { |
|
|
| 505 | fprintf (stderr, "testgl: OpenGL error: %d\n", gl_error); |
418 | fprintf (stderr, "testgl: OpenGL error: %d\n", gl_error); |
| 506 | } |
|
|
| 507 | |
419 | |
| 508 | sdl_error = SDL_GetError (); |
420 | sdl_error = SDL_GetError (); |
| 509 | |
421 | |
| 510 | if (sdl_error[0] != '\0') |
422 | if (sdl_error[0] != '\0') |
| 511 | { |
423 | { |
