| 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 */ |