e14743d1 |
1 | #include <stdlib.h> |
2 | #include <stdio.h> |
3 | #include <string.h> |
4 | #include <math.h> |
5 | |
6 | #include "SDL.h" |
7 | |
8 | #ifdef __MACOS__ |
9 | #define HAVE_OPENGL |
10 | #endif |
11 | |
12 | #ifdef HAVE_OPENGL |
13 | |
14 | #include "SDL_opengl.h" |
15 | |
16 | /* Undefine this if you want a flat cube instead of a rainbow cube */ |
17 | #define SHADED_CUBE |
18 | |
19 | /* Define this to be the name of the logo image to use with -logo */ |
20 | #define LOGO_FILE "icon.bmp" |
21 | |
22 | /* The SDL_OPENGLBLIT interface is deprecated. |
23 | The code is still available for benchmark purposes though. |
24 | */ |
25 | |
26 | static SDL_bool USE_DEPRECATED_OPENGLBLIT = SDL_FALSE; |
27 | |
28 | static SDL_Surface *global_image = NULL; |
29 | static GLuint global_texture = 0; |
30 | static GLuint cursor_texture = 0; |
31 | |
32 | /**********************************************************************/ |
33 | |
34 | void HotKey_ToggleFullScreen(void) |
35 | { |
36 | SDL_Surface *screen; |
37 | |
38 | screen = SDL_GetVideoSurface(); |
39 | if ( SDL_WM_ToggleFullScreen(screen) ) { |
40 | printf("Toggled fullscreen mode - now %s\n", |
41 | (screen->flags&SDL_FULLSCREEN) ? "fullscreen" : "windowed"); |
42 | } else { |
43 | printf("Unable to toggle fullscreen mode\n"); |
44 | } |
45 | } |
46 | |
47 | void HotKey_ToggleGrab(void) |
48 | { |
49 | SDL_GrabMode mode; |
50 | |
51 | printf("Ctrl-G: toggling input grab!\n"); |
52 | mode = SDL_WM_GrabInput(SDL_GRAB_QUERY); |
53 | if ( mode == SDL_GRAB_ON ) { |
54 | printf("Grab was on\n"); |
55 | } else { |
56 | printf("Grab was off\n"); |
57 | } |
58 | mode = SDL_WM_GrabInput(!mode); |
59 | if ( mode == SDL_GRAB_ON ) { |
60 | printf("Grab is now on\n"); |
61 | } else { |
62 | printf("Grab is now off\n"); |
63 | } |
64 | } |
65 | |
66 | void HotKey_Iconify(void) |
67 | { |
68 | printf("Ctrl-Z: iconifying window!\n"); |
69 | SDL_WM_IconifyWindow(); |
70 | } |
71 | |
72 | int HandleEvent(SDL_Event *event) |
73 | { |
74 | int done; |
75 | |
76 | done = 0; |
77 | switch( event->type ) { |
78 | case SDL_ACTIVEEVENT: |
79 | /* See what happened */ |
80 | printf( "app %s ", event->active.gain ? "gained" : "lost" ); |
81 | if ( event->active.state & SDL_APPACTIVE ) { |
82 | printf( "active " ); |
83 | } else if ( event->active.state & SDL_APPMOUSEFOCUS ) { |
84 | printf( "mouse " ); |
85 | } else if ( event->active.state & SDL_APPINPUTFOCUS ) { |
86 | printf( "input " ); |
87 | } |
88 | printf( "focus\n" ); |
89 | break; |
90 | |
91 | |
92 | case SDL_KEYDOWN: |
93 | if ( event->key.keysym.sym == SDLK_ESCAPE ) { |
94 | done = 1; |
95 | } |
96 | if ( (event->key.keysym.sym == SDLK_g) && |
97 | (event->key.keysym.mod & KMOD_CTRL) ) { |
98 | HotKey_ToggleGrab(); |
99 | } |
100 | if ( (event->key.keysym.sym == SDLK_z) && |
101 | (event->key.keysym.mod & KMOD_CTRL) ) { |
102 | HotKey_Iconify(); |
103 | } |
104 | if ( (event->key.keysym.sym == SDLK_RETURN) && |
105 | (event->key.keysym.mod & KMOD_ALT) ) { |
106 | HotKey_ToggleFullScreen(); |
107 | } |
108 | printf("key '%s' pressed\n", |
109 | SDL_GetKeyName(event->key.keysym.sym)); |
110 | break; |
111 | case SDL_QUIT: |
112 | done = 1; |
113 | break; |
114 | } |
115 | return(done); |
116 | } |
117 | |
118 | void SDL_GL_Enter2DMode() |
119 | { |
120 | SDL_Surface *screen = SDL_GetVideoSurface(); |
121 | |
122 | /* Note, there may be other things you need to change, |
123 | depending on how you have your OpenGL state set up. |
124 | */ |
125 | glPushAttrib(GL_ENABLE_BIT); |
126 | glDisable(GL_DEPTH_TEST); |
127 | glDisable(GL_CULL_FACE); |
128 | glEnable(GL_TEXTURE_2D); |
129 | |
130 | /* This allows alpha blending of 2D textures with the scene */ |
131 | glEnable(GL_BLEND); |
132 | glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); |
133 | |
134 | glViewport(0, 0, screen->w, screen->h); |
135 | |
136 | glMatrixMode(GL_PROJECTION); |
137 | glPushMatrix(); |
138 | glLoadIdentity(); |
139 | |
140 | glOrtho(0.0, (GLdouble)screen->w, (GLdouble)screen->h, 0.0, 0.0, 1.0); |
141 | |
142 | glMatrixMode(GL_MODELVIEW); |
143 | glPushMatrix(); |
144 | glLoadIdentity(); |
145 | |
146 | glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_DECAL); |
147 | } |
148 | |
149 | void SDL_GL_Leave2DMode() |
150 | { |
151 | glMatrixMode(GL_MODELVIEW); |
152 | glPopMatrix(); |
153 | |
154 | glMatrixMode(GL_PROJECTION); |
155 | glPopMatrix(); |
156 | |
157 | glPopAttrib(); |
158 | } |
159 | |
160 | /* Quick utility function for texture creation */ |
161 | static int power_of_two(int input) |
162 | { |
163 | int value = 1; |
164 | |
165 | while ( value < input ) { |
166 | value <<= 1; |
167 | } |
168 | return value; |
169 | } |
170 | |
171 | GLuint SDL_GL_LoadTexture(SDL_Surface *surface, GLfloat *texcoord) |
172 | { |
173 | GLuint texture; |
174 | int w, h; |
175 | SDL_Surface *image; |
176 | SDL_Rect area; |
177 | Uint32 saved_flags; |
178 | Uint8 saved_alpha; |
179 | |
180 | /* Use the surface width and height expanded to powers of 2 */ |
181 | w = power_of_two(surface->w); |
182 | h = power_of_two(surface->h); |
183 | texcoord[0] = 0.0f; /* Min X */ |
184 | texcoord[1] = 0.0f; /* Min Y */ |
185 | texcoord[2] = (GLfloat)surface->w / w; /* Max X */ |
186 | texcoord[3] = (GLfloat)surface->h / h; /* Max Y */ |
187 | |
188 | image = SDL_CreateRGBSurface( |
189 | SDL_SWSURFACE, |
190 | w, h, |
191 | 32, |
192 | #if SDL_BYTEORDER == SDL_LIL_ENDIAN /* OpenGL RGBA masks */ |
193 | 0x000000FF, |
194 | 0x0000FF00, |
195 | 0x00FF0000, |
196 | 0xFF000000 |
197 | #else |
198 | 0xFF000000, |
199 | 0x00FF0000, |
200 | 0x0000FF00, |
201 | 0x000000FF |
202 | #endif |
203 | ); |
204 | if ( image == NULL ) { |
205 | return 0; |
206 | } |
207 | |
208 | /* Save the alpha blending attributes */ |
209 | saved_flags = surface->flags&(SDL_SRCALPHA|SDL_RLEACCELOK); |
210 | saved_alpha = surface->format->alpha; |
211 | if ( (saved_flags & SDL_SRCALPHA) == SDL_SRCALPHA ) { |
212 | SDL_SetAlpha(surface, 0, 0); |
213 | } |
214 | |
215 | /* Copy the surface into the GL texture image */ |
216 | area.x = 0; |
217 | area.y = 0; |
218 | area.w = surface->w; |
219 | area.h = surface->h; |
220 | SDL_BlitSurface(surface, &area, image, &area); |
221 | |
222 | /* Restore the alpha blending attributes */ |
223 | if ( (saved_flags & SDL_SRCALPHA) == SDL_SRCALPHA ) { |
224 | SDL_SetAlpha(surface, saved_flags, saved_alpha); |
225 | } |
226 | |
227 | /* Create an OpenGL texture for the image */ |
228 | glGenTextures(1, &texture); |
229 | glBindTexture(GL_TEXTURE_2D, texture); |
230 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); |
231 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); |
232 | glTexImage2D(GL_TEXTURE_2D, |
233 | 0, |
234 | GL_RGBA, |
235 | w, h, |
236 | 0, |
237 | GL_RGBA, |
238 | GL_UNSIGNED_BYTE, |
239 | image->pixels); |
240 | SDL_FreeSurface(image); /* No longer needed */ |
241 | |
242 | return texture; |
243 | } |
244 | |
245 | void DrawLogoCursor(void) |
246 | { |
247 | static GLfloat texMinX, texMinY; |
248 | static GLfloat texMaxX, texMaxY; |
249 | static int w, h; |
250 | int x, y; |
251 | |
252 | if ( ! cursor_texture ) { |
253 | SDL_Surface *image; |
254 | GLfloat texcoord[4]; |
255 | |
256 | /* Load the image (could use SDL_image library here) */ |
257 | image = SDL_LoadBMP(LOGO_FILE); |
258 | if ( image == NULL ) { |
259 | return; |
260 | } |
261 | w = image->w; |
262 | h = image->h; |
263 | |
264 | /* Convert the image into an OpenGL texture */ |
265 | cursor_texture = SDL_GL_LoadTexture(image, texcoord); |
266 | |
267 | /* Make texture coordinates easy to understand */ |
268 | texMinX = texcoord[0]; |
269 | texMinY = texcoord[1]; |
270 | texMaxX = texcoord[2]; |
271 | texMaxY = texcoord[3]; |
272 | |
273 | /* We don't need the original image anymore */ |
274 | SDL_FreeSurface(image); |
275 | |
276 | /* Make sure that the texture conversion is okay */ |
277 | if ( ! cursor_texture ) { |
278 | return; |
279 | } |
280 | } |
281 | |
282 | /* Move the image around */ |
283 | SDL_GetMouseState(&x, &y); |
284 | x -= w/2; |
285 | y -= h/2; |
286 | |
287 | /* Show the image on the screen */ |
288 | SDL_GL_Enter2DMode(); |
289 | glBindTexture(GL_TEXTURE_2D, cursor_texture); |
290 | glBegin(GL_TRIANGLE_STRIP); |
291 | glTexCoord2f(texMinX, texMinY); glVertex2i(x, y ); |
292 | glTexCoord2f(texMaxX, texMinY); glVertex2i(x+w, y ); |
293 | glTexCoord2f(texMinX, texMaxY); glVertex2i(x, y+h); |
294 | glTexCoord2f(texMaxX, texMaxY); glVertex2i(x+w, y+h); |
295 | glEnd(); |
296 | SDL_GL_Leave2DMode(); |
297 | } |
298 | |
299 | void DrawLogoTexture(void) |
300 | { |
301 | static GLfloat texMinX, texMinY; |
302 | static GLfloat texMaxX, texMaxY; |
303 | static int x = 0; |
304 | static int y = 0; |
305 | static int w, h; |
306 | static int delta_x = 1; |
307 | static int delta_y = 1; |
308 | |
309 | SDL_Surface *screen = SDL_GetVideoSurface(); |
310 | |
311 | if ( ! global_texture ) { |
312 | SDL_Surface *image; |
313 | GLfloat texcoord[4]; |
314 | |
315 | /* Load the image (could use SDL_image library here) */ |
316 | image = SDL_LoadBMP(LOGO_FILE); |
317 | if ( image == NULL ) { |
318 | return; |
319 | } |
320 | w = image->w; |
321 | h = image->h; |
322 | |
323 | /* Convert the image into an OpenGL texture */ |
324 | global_texture = SDL_GL_LoadTexture(image, texcoord); |
325 | |
326 | /* Make texture coordinates easy to understand */ |
327 | texMinX = texcoord[0]; |
328 | texMinY = texcoord[1]; |
329 | texMaxX = texcoord[2]; |
330 | texMaxY = texcoord[3]; |
331 | |
332 | /* We don't need the original image anymore */ |
333 | SDL_FreeSurface(image); |
334 | |
335 | /* Make sure that the texture conversion is okay */ |
336 | if ( ! global_texture ) { |
337 | return; |
338 | } |
339 | } |
340 | |
341 | /* Move the image around */ |
342 | x += delta_x; |
343 | if ( x < 0 ) { |
344 | x = 0; |
345 | delta_x = -delta_x; |
346 | } else |
347 | if ( (x+w) > screen->w ) { |
348 | x = screen->w-w; |
349 | delta_x = -delta_x; |
350 | } |
351 | y += delta_y; |
352 | if ( y < 0 ) { |
353 | y = 0; |
354 | delta_y = -delta_y; |
355 | } else |
356 | if ( (y+h) > screen->h ) { |
357 | y = screen->h-h; |
358 | delta_y = -delta_y; |
359 | } |
360 | |
361 | /* Show the image on the screen */ |
362 | SDL_GL_Enter2DMode(); |
363 | glBindTexture(GL_TEXTURE_2D, global_texture); |
364 | glBegin(GL_TRIANGLE_STRIP); |
365 | glTexCoord2f(texMinX, texMinY); glVertex2i(x, y ); |
366 | glTexCoord2f(texMaxX, texMinY); glVertex2i(x+w, y ); |
367 | glTexCoord2f(texMinX, texMaxY); glVertex2i(x, y+h); |
368 | glTexCoord2f(texMaxX, texMaxY); glVertex2i(x+w, y+h); |
369 | glEnd(); |
370 | SDL_GL_Leave2DMode(); |
371 | } |
372 | |
373 | /* This code is deprecated, but available for speed comparisons */ |
374 | void DrawLogoBlit(void) |
375 | { |
376 | static int x = 0; |
377 | static int y = 0; |
378 | static int w, h; |
379 | static int delta_x = 1; |
380 | static int delta_y = 1; |
381 | |
382 | SDL_Rect dst; |
383 | SDL_Surface *screen = SDL_GetVideoSurface(); |
384 | |
385 | if ( global_image == NULL ) { |
386 | SDL_Surface *temp; |
387 | |
388 | /* Load the image (could use SDL_image library here) */ |
389 | temp = SDL_LoadBMP(LOGO_FILE); |
390 | if ( temp == NULL ) { |
391 | return; |
392 | } |
393 | w = temp->w; |
394 | h = temp->h; |
395 | |
396 | /* Convert the image into the screen format */ |
397 | global_image = SDL_CreateRGBSurface( |
398 | SDL_SWSURFACE, |
399 | w, h, |
400 | screen->format->BitsPerPixel, |
401 | screen->format->Rmask, |
402 | screen->format->Gmask, |
403 | screen->format->Bmask, |
404 | screen->format->Amask); |
405 | if ( global_image ) { |
406 | SDL_BlitSurface(temp, NULL, global_image, NULL); |
407 | } |
408 | SDL_FreeSurface(temp); |
409 | |
410 | /* Make sure that the texture conversion is okay */ |
411 | if ( ! global_image ) { |
412 | return; |
413 | } |
414 | } |
415 | |
416 | /* Move the image around |
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 | */ |
423 | x += delta_x; |
424 | if ( x < 0 ) { |
425 | x = 0; |
426 | delta_x = -delta_x; |
427 | } else |
428 | if ( (x+w) > screen->w ) { |
429 | x = screen->w-w; |
430 | delta_x = -delta_x; |
431 | } |
432 | y += delta_y; |
433 | if ( y < 0 ) { |
434 | y = 0; |
435 | delta_y = -delta_y; |
436 | } else |
437 | if ( (y+h) > screen->h ) { |
438 | y = screen->h-h; |
439 | delta_y = -delta_y; |
440 | } |
441 | dst.x = x; |
442 | dst.y = y; |
443 | dst.w = w; |
444 | dst.h = h; |
445 | SDL_BlitSurface(global_image, NULL, screen, &dst); |
446 | |
447 | /* Show the image on the screen */ |
448 | SDL_UpdateRects(screen, 1, &dst); |
449 | } |
450 | |
451 | int RunGLTest( int argc, char* argv[], |
452 | int logo, int logocursor, int slowly, int bpp, float gamma, int noframe, int fsaa, int sync, int accel ) |
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 */ |
495 | if ( logo && USE_DEPRECATED_OPENGLBLIT ) { |
496 | video_flags = SDL_OPENGLBLIT; |
497 | } else { |
498 | video_flags = SDL_OPENGL; |
499 | } |
500 | for ( i=1; argv[i]; ++i ) { |
501 | if ( strcmp(argv[i], "-fullscreen") == 0 ) { |
502 | video_flags |= SDL_FULLSCREEN; |
503 | } |
504 | } |
505 | |
506 | if (noframe) { |
507 | video_flags |= SDL_NOFRAME; |
508 | } |
509 | |
510 | /* Initialize the display */ |
511 | switch (bpp) { |
512 | case 8: |
513 | rgb_size[0] = 3; |
514 | rgb_size[1] = 3; |
515 | rgb_size[2] = 2; |
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 ); |
534 | if ( fsaa ) { |
535 | SDL_GL_SetAttribute( SDL_GL_MULTISAMPLEBUFFERS, 1 ); |
536 | SDL_GL_SetAttribute( SDL_GL_MULTISAMPLESAMPLES, fsaa ); |
537 | } |
538 | if ( accel ) { |
539 | SDL_GL_SetAttribute( SDL_GL_ACCELERATED_VISUAL, 1 ); |
540 | } |
541 | if ( sync ) { |
542 | SDL_GL_SetAttribute( SDL_GL_SWAP_CONTROL, 1 ); |
543 | } else { |
544 | SDL_GL_SetAttribute( SDL_GL_SWAP_CONTROL, 0 ); |
545 | } |
546 | if ( SDL_SetVideoMode( w, h, bpp, video_flags ) == NULL ) { |
547 | fprintf(stderr, "Couldn't set GL mode: %s\n", SDL_GetError()); |
548 | SDL_Quit(); |
549 | exit(1); |
550 | } |
551 | |
552 | printf("Screen BPP: %d\n", SDL_GetVideoSurface()->format->BitsPerPixel); |
553 | printf("\n"); |
554 | printf( "Vendor : %s\n", glGetString( GL_VENDOR ) ); |
555 | printf( "Renderer : %s\n", glGetString( GL_RENDERER ) ); |
556 | printf( "Version : %s\n", glGetString( GL_VERSION ) ); |
557 | printf( "Extensions : %s\n", glGetString( GL_EXTENSIONS ) ); |
558 | printf("\n"); |
559 | |
560 | SDL_GL_GetAttribute( SDL_GL_RED_SIZE, &value ); |
561 | printf( "SDL_GL_RED_SIZE: requested %d, got %d\n", rgb_size[0],value); |
562 | SDL_GL_GetAttribute( SDL_GL_GREEN_SIZE, &value ); |
563 | printf( "SDL_GL_GREEN_SIZE: requested %d, got %d\n", rgb_size[1],value); |
564 | SDL_GL_GetAttribute( SDL_GL_BLUE_SIZE, &value ); |
565 | printf( "SDL_GL_BLUE_SIZE: requested %d, got %d\n", rgb_size[2],value); |
566 | SDL_GL_GetAttribute( SDL_GL_DEPTH_SIZE, &value ); |
567 | printf( "SDL_GL_DEPTH_SIZE: requested %d, got %d\n", bpp, value ); |
568 | SDL_GL_GetAttribute( SDL_GL_DOUBLEBUFFER, &value ); |
569 | printf( "SDL_GL_DOUBLEBUFFER: requested 1, got %d\n", value ); |
570 | if ( fsaa ) { |
571 | SDL_GL_GetAttribute( SDL_GL_MULTISAMPLEBUFFERS, &value ); |
572 | printf("SDL_GL_MULTISAMPLEBUFFERS: requested 1, got %d\n", value ); |
573 | SDL_GL_GetAttribute( SDL_GL_MULTISAMPLESAMPLES, &value ); |
574 | printf("SDL_GL_MULTISAMPLESAMPLES: requested %d, got %d\n", fsaa, value ); |
575 | } |
576 | if ( accel ) { |
577 | SDL_GL_GetAttribute( SDL_GL_ACCELERATED_VISUAL, &value ); |
578 | printf( "SDL_GL_ACCELERATED_VISUAL: requested 1, got %d\n", value ); |
579 | } |
580 | if ( sync ) { |
581 | SDL_GL_GetAttribute( SDL_GL_SWAP_CONTROL, &value ); |
582 | printf( "SDL_GL_SWAP_CONTROL: requested 1, got %d\n", value ); |
583 | } |
584 | |
585 | /* Set the window manager title bar */ |
586 | SDL_WM_SetCaption( "SDL GL test", "testgl" ); |
587 | |
588 | /* Set the gamma for the window */ |
589 | if ( gamma != 0.0 ) { |
590 | SDL_SetGamma(gamma, gamma, gamma); |
591 | } |
592 | |
593 | glViewport( 0, 0, w, h ); |
594 | glMatrixMode( GL_PROJECTION ); |
595 | glLoadIdentity( ); |
596 | |
597 | glOrtho( -2.0, 2.0, -2.0, 2.0, -20.0, 20.0 ); |
598 | |
599 | glMatrixMode( GL_MODELVIEW ); |
600 | glLoadIdentity( ); |
601 | |
602 | glEnable(GL_DEPTH_TEST); |
603 | |
604 | glDepthFunc(GL_LESS); |
605 | |
606 | glShadeModel(GL_SMOOTH); |
607 | |
608 | /* Loop until done. */ |
609 | start_time = SDL_GetTicks(); |
610 | frames = 0; |
611 | while( !done ) { |
612 | GLenum gl_error; |
613 | char* sdl_error; |
614 | SDL_Event event; |
615 | |
616 | /* Do our drawing, too. */ |
617 | glClearColor( 0.0, 0.0, 0.0, 1.0 ); |
618 | glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); |
619 | |
620 | glBegin( GL_QUADS ); |
621 | |
622 | #ifdef SHADED_CUBE |
623 | glColor3fv(color[0]); |
624 | glVertex3fv(cube[0]); |
625 | glColor3fv(color[1]); |
626 | glVertex3fv(cube[1]); |
627 | glColor3fv(color[2]); |
628 | glVertex3fv(cube[2]); |
629 | glColor3fv(color[3]); |
630 | glVertex3fv(cube[3]); |
631 | |
632 | glColor3fv(color[3]); |
633 | glVertex3fv(cube[3]); |
634 | glColor3fv(color[4]); |
635 | glVertex3fv(cube[4]); |
636 | glColor3fv(color[7]); |
637 | glVertex3fv(cube[7]); |
638 | glColor3fv(color[2]); |
639 | glVertex3fv(cube[2]); |
640 | |
641 | glColor3fv(color[0]); |
642 | glVertex3fv(cube[0]); |
643 | glColor3fv(color[5]); |
644 | glVertex3fv(cube[5]); |
645 | glColor3fv(color[6]); |
646 | glVertex3fv(cube[6]); |
647 | glColor3fv(color[1]); |
648 | glVertex3fv(cube[1]); |
649 | |
650 | glColor3fv(color[5]); |
651 | glVertex3fv(cube[5]); |
652 | glColor3fv(color[4]); |
653 | glVertex3fv(cube[4]); |
654 | glColor3fv(color[7]); |
655 | glVertex3fv(cube[7]); |
656 | glColor3fv(color[6]); |
657 | glVertex3fv(cube[6]); |
658 | |
659 | glColor3fv(color[5]); |
660 | glVertex3fv(cube[5]); |
661 | glColor3fv(color[0]); |
662 | glVertex3fv(cube[0]); |
663 | glColor3fv(color[3]); |
664 | glVertex3fv(cube[3]); |
665 | glColor3fv(color[4]); |
666 | glVertex3fv(cube[4]); |
667 | |
668 | glColor3fv(color[6]); |
669 | glVertex3fv(cube[6]); |
670 | glColor3fv(color[1]); |
671 | glVertex3fv(cube[1]); |
672 | glColor3fv(color[2]); |
673 | glVertex3fv(cube[2]); |
674 | glColor3fv(color[7]); |
675 | glVertex3fv(cube[7]); |
676 | #else /* flat cube */ |
677 | glColor3f(1.0, 0.0, 0.0); |
678 | glVertex3fv(cube[0]); |
679 | glVertex3fv(cube[1]); |
680 | glVertex3fv(cube[2]); |
681 | glVertex3fv(cube[3]); |
682 | |
683 | glColor3f(0.0, 1.0, 0.0); |
684 | glVertex3fv(cube[3]); |
685 | glVertex3fv(cube[4]); |
686 | glVertex3fv(cube[7]); |
687 | glVertex3fv(cube[2]); |
688 | |
689 | glColor3f(0.0, 0.0, 1.0); |
690 | glVertex3fv(cube[0]); |
691 | glVertex3fv(cube[5]); |
692 | glVertex3fv(cube[6]); |
693 | glVertex3fv(cube[1]); |
694 | |
695 | glColor3f(0.0, 1.0, 1.0); |
696 | glVertex3fv(cube[5]); |
697 | glVertex3fv(cube[4]); |
698 | glVertex3fv(cube[7]); |
699 | glVertex3fv(cube[6]); |
700 | |
701 | glColor3f(1.0, 1.0, 0.0); |
702 | glVertex3fv(cube[5]); |
703 | glVertex3fv(cube[0]); |
704 | glVertex3fv(cube[3]); |
705 | glVertex3fv(cube[4]); |
706 | |
707 | glColor3f(1.0, 0.0, 1.0); |
708 | glVertex3fv(cube[6]); |
709 | glVertex3fv(cube[1]); |
710 | glVertex3fv(cube[2]); |
711 | glVertex3fv(cube[7]); |
712 | #endif /* SHADED_CUBE */ |
713 | |
714 | glEnd( ); |
715 | |
716 | glMatrixMode(GL_MODELVIEW); |
717 | glRotatef(5.0, 1.0, 1.0, 1.0); |
718 | |
719 | /* Draw 2D logo onto the 3D display */ |
720 | if ( logo ) { |
721 | if ( USE_DEPRECATED_OPENGLBLIT ) { |
722 | DrawLogoBlit(); |
723 | } else { |
724 | DrawLogoTexture(); |
725 | } |
726 | } |
727 | if ( logocursor ) { |
728 | DrawLogoCursor(); |
729 | } |
730 | |
731 | SDL_GL_SwapBuffers( ); |
732 | |
733 | /* Check for error conditions. */ |
734 | gl_error = glGetError( ); |
735 | |
736 | if( gl_error != GL_NO_ERROR ) { |
737 | fprintf( stderr, "testgl: OpenGL error: %d\n", gl_error ); |
738 | } |
739 | |
740 | sdl_error = SDL_GetError( ); |
741 | |
742 | if( sdl_error[0] != '\0' ) { |
743 | fprintf(stderr, "testgl: SDL error '%s'\n", sdl_error); |
744 | SDL_ClearError(); |
745 | } |
746 | |
747 | /* Allow the user to see what's happening */ |
748 | if ( slowly ) { |
749 | SDL_Delay( 20 ); |
750 | } |
751 | |
752 | /* Check if there's a pending event. */ |
753 | while( SDL_PollEvent( &event ) ) { |
754 | done = HandleEvent(&event); |
755 | } |
756 | ++frames; |
757 | } |
758 | |
759 | /* Print out the frames per second */ |
760 | this_time = SDL_GetTicks(); |
761 | if ( this_time != start_time ) { |
762 | printf("%2.2f FPS\n", |
763 | ((float)frames/(this_time-start_time))*1000.0); |
764 | } |
765 | |
766 | if ( global_image ) { |
767 | SDL_FreeSurface(global_image); |
768 | global_image = NULL; |
769 | } |
770 | if ( global_texture ) { |
771 | glDeleteTextures( 1, &global_texture ); |
772 | global_texture = 0; |
773 | } |
774 | if ( cursor_texture ) { |
775 | glDeleteTextures( 1, &cursor_texture ); |
776 | cursor_texture = 0; |
777 | } |
778 | |
779 | /* Destroy our GL context, etc. */ |
780 | SDL_Quit( ); |
781 | return(0); |
782 | } |
783 | |
784 | int main(int argc, char *argv[]) |
785 | { |
786 | int i, logo, logocursor = 0; |
787 | int numtests; |
788 | int bpp = 0; |
789 | int slowly; |
790 | float gamma = 0.0; |
791 | int noframe = 0; |
792 | int fsaa = 0; |
793 | int accel = 0; |
794 | int sync = 0; |
795 | |
796 | logo = 0; |
797 | slowly = 0; |
798 | numtests = 1; |
799 | for ( i=1; argv[i]; ++i ) { |
800 | if ( strcmp(argv[i], "-twice") == 0 ) { |
801 | ++numtests; |
802 | } |
803 | if ( strcmp(argv[i], "-logo") == 0 ) { |
804 | logo = 1; |
805 | USE_DEPRECATED_OPENGLBLIT = SDL_FALSE; |
806 | } |
807 | if ( strcmp(argv[i], "-logoblit") == 0 ) { |
808 | logo = 1; |
809 | USE_DEPRECATED_OPENGLBLIT = SDL_TRUE; |
810 | } |
811 | if ( strcmp(argv[i], "-logocursor") == 0 ) { |
812 | logocursor = 1; |
813 | } |
814 | if ( strcmp(argv[i], "-slow") == 0 ) { |
815 | slowly = 1; |
816 | } |
817 | if ( strcmp(argv[i], "-bpp") == 0 ) { |
818 | bpp = atoi(argv[++i]); |
819 | } |
820 | if ( strcmp(argv[i], "-gamma") == 0 ) { |
821 | gamma = (float)atof(argv[++i]); |
822 | } |
823 | if ( strcmp(argv[i], "-noframe") == 0 ) { |
824 | noframe = 1; |
825 | } |
826 | if ( strcmp(argv[i], "-fsaa") == 0 ) { |
827 | ++fsaa; |
828 | } |
829 | if ( strcmp(argv[i], "-accel") == 0 ) { |
830 | ++accel; |
831 | } |
832 | if ( strcmp(argv[i], "-sync") == 0 ) { |
833 | ++sync; |
834 | } |
835 | if ( strncmp(argv[i], "-h", 2) == 0 ) { |
836 | printf( |
837 | "Usage: %s [-twice] [-logo] [-logocursor] [-slow] [-bpp n] [-gamma n] [-noframe] [-fsaa] [-accel] [-sync] [-fullscreen]\n", |
838 | argv[0]); |
839 | exit(0); |
840 | } |
841 | } |
842 | for ( i=0; i<numtests; ++i ) { |
843 | RunGLTest(argc, argv, logo, logocursor, slowly, bpp, gamma, noframe, fsaa, sync, accel); |
844 | } |
845 | return 0; |
846 | } |
847 | |
848 | #else /* HAVE_OPENGL */ |
849 | |
850 | int main(int argc, char *argv[]) |
851 | { |
852 | printf("No OpenGL support on this system\n"); |
853 | return 1; |
854 | } |
855 | |
856 | #endif /* HAVE_OPENGL */ |