|
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 */ |