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/cvs/libgender/test.C
Revision: 1.30
Committed: Tue Oct 5 07:35:26 2004 UTC (19 years, 8 months ago) by root
Content type: text/plain
Branch: MAIN
CVS Tags: knowngood
Changes since 1.29: +8 -8 lines
Log Message:
*** empty log message ***

File Contents

# Content
1 #include <stdlib.h>
2 #include <stdio.h>
3 #include <string.h>
4 #include <math.h>
5
6 #include "SDL.h"
7 #include "SDL_opengl.h"
8
9 static SDL_Surface *global_image = NULL;
10 static GLuint global_texture = 0;
11
12 #include "util.h"
13 #include "entity.h"
14 #include "txtprt_import.h"
15
16 CGcontext cgc;
17 CGprogram vsh, fsh;
18 CGparameter mv, mvp, lightpos;
19
20 static void CheckCgError(void)
21 {
22 CGerror err = cgGetError();
23
24 if (err != CG_NO_ERROR)
25 {
26 printf("CG error: %s\n", cgGetErrorString(err));
27 exit(1);
28 }
29 }
30
31 /**********************************************************************/
32
33 view camera;
34 vec3 camera_velocity;
35 float camera_velocity_factor = 10;
36
37 void
38 HotKey_ToggleFullScreen (void)
39 {
40 SDL_Surface *screen;
41
42 screen = SDL_GetVideoSurface ();
43 if (SDL_WM_ToggleFullScreen (screen))
44 printf ("Toggled fullscreen mode - now %s\n",
45 (screen->flags & SDL_FULLSCREEN) ? "fullscreen" : "windowed");
46 else
47 printf ("Unable to toggle fullscreen mode\n");
48 }
49
50 void
51 HotKey_ToggleGrab (void)
52 {
53 SDL_GrabMode mode;
54
55 printf ("Ctrl-G: toggling input grab!\n");
56 mode = SDL_WM_GrabInput (SDL_GRAB_QUERY);
57 if (mode == SDL_GRAB_ON)
58 printf ("Grab was on\n");
59 else
60 printf ("Grab was off\n");
61
62 mode = SDL_WM_GrabInput (mode ? SDL_GRAB_OFF : SDL_GRAB_ON);
63 if (mode == SDL_GRAB_ON)
64 printf ("Grab is now on\n");
65 else
66 printf ("Grab is now off\n");
67 }
68
69 void
70 HotKey_Iconify (void)
71 {
72 printf ("Ctrl-Z: iconifying window!\n");
73 SDL_WM_IconifyWindow ();
74 }
75
76 int
77 HandleEvent (SDL_Event * event)
78 {
79 int done;
80
81 done = 0;
82 switch (event->type)
83 {
84 case SDL_ACTIVEEVENT:
85 /* See what happened */
86 printf ("app %s ", event->active.gain ? "gained" : "lost");
87 if (event->active.state & SDL_APPACTIVE)
88 {
89 printf ("active ");
90 }
91 else if (event->active.state & SDL_APPMOUSEFOCUS)
92 {
93 printf ("mouse ");
94 }
95 else if (event->active.state & SDL_APPINPUTFOCUS)
96 {
97 printf ("input ");
98 }
99
100 printf ("focus\n");
101 break;
102
103 #define VELOCITY 10
104 case SDL_KEYDOWN:
105 if (event->key.keysym.sym == SDLK_UP) camera_velocity.z--;
106 if (event->key.keysym.sym == SDLK_DOWN) camera_velocity.z++;
107 if (event->key.keysym.sym == SDLK_LEFT) camera_velocity.x--;
108 if (event->key.keysym.sym == SDLK_RIGHT) camera_velocity.x++;
109 if (event->key.keysym.sym == SDLK_a) camera_velocity.y--;
110 if (event->key.keysym.sym == SDLK_s) camera_velocity.y++;
111 if (event->key.keysym.sym == SDLK_v) camera_velocity_factor *= 1.5;
112 if (event->key.keysym.sym == SDLK_b) camera_velocity_factor /= 1.5;
113
114 if (event->key.keysym.sym == SDLK_ESCAPE)
115 done = 1;
116
117 if ((event->key.keysym.sym == SDLK_g) &&
118 (event->key.keysym.mod & KMOD_CTRL))
119 HotKey_ToggleGrab ();
120
121 if ((event->key.keysym.sym == SDLK_z) &&
122 (event->key.keysym.mod & KMOD_CTRL))
123 HotKey_Iconify ();
124
125 if ((event->key.keysym.sym == SDLK_RETURN) &&
126 (event->key.keysym.mod & KMOD_ALT))
127 HotKey_ToggleFullScreen ();
128
129 break;
130
131 case SDL_KEYUP:
132 if (event->key.keysym.sym == SDLK_UP) camera_velocity.z++;
133 if (event->key.keysym.sym == SDLK_DOWN) camera_velocity.z--;
134 if (event->key.keysym.sym == SDLK_LEFT) camera_velocity.x++;
135 if (event->key.keysym.sym == SDLK_RIGHT) camera_velocity.x--;
136 if (event->key.keysym.sym == SDLK_a) camera_velocity.y++;
137 if (event->key.keysym.sym == SDLK_s) camera_velocity.y--;
138 break;
139
140 case SDL_QUIT:
141 done = 1;
142 break;
143 }
144
145 return (done);
146 }
147
148 /* Quick utility function for texture creation */
149 static int
150 power_of_two (int input)
151 {
152 int value = 1;
153
154 while (value < input)
155 {
156 value <<= 1;
157 }
158 return value;
159 }
160
161 GLuint
162 SDL_GL_LoadTexture (SDL_Surface * surface, GLfloat * texcoord)
163 {
164 GLuint texture;
165 int w, h;
166 SDL_Surface *image;
167 SDL_Rect area;
168 Uint32 saved_flags;
169 Uint8 saved_alpha;
170
171 /* Use the surface width and height expanded to powers of 2 */
172 w = power_of_two (surface->w);
173 h = power_of_two (surface->h);
174 texcoord[0] = 0.0f; /* Min X */
175 texcoord[1] = 0.0f; /* Min Y */
176 texcoord[2] = (GLfloat) surface->w / w; /* Max X */
177 texcoord[3] = (GLfloat) surface->h / h; /* Max Y */
178
179 image = SDL_CreateRGBSurface (SDL_SWSURFACE, w, h, 32,
180 #if SDL_BYTEORDER == SDL_LIL_ENDIAN /* OpenGL RGBA masks */
181 0x000000FF, 0x0000FF00, 0x00FF0000, 0xFF000000
182 #else
183 0xFF000000, 0x00FF0000, 0x0000FF00, 0x000000FF
184 #endif
185 );
186 if (image == NULL)
187 {
188 return 0;
189 }
190
191 /* Save the alpha blending attributes */
192 saved_flags = surface->flags & (SDL_SRCALPHA | SDL_RLEACCELOK);
193 saved_alpha = surface->format->alpha;
194 if ((saved_flags & SDL_SRCALPHA) == SDL_SRCALPHA)
195 {
196 SDL_SetAlpha (surface, 0, 0);
197 }
198
199 /* Copy the surface into the GL texture image */
200 area.x = 0;
201 area.y = 0;
202 area.w = surface->w;
203 area.h = surface->h;
204 SDL_BlitSurface (surface, &area, image, &area);
205
206 /* Restore the alpha blending attributes */
207 if ((saved_flags & SDL_SRCALPHA) == SDL_SRCALPHA)
208 {
209 SDL_SetAlpha (surface, saved_flags, saved_alpha);
210 }
211
212 /* Create an OpenGL texture for the image */
213 glGenTextures (1, &texture);
214 glBindTexture (GL_TEXTURE_2D, texture);
215 glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
216 glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
217 glTexImage2D (GL_TEXTURE_2D,
218 0,
219 GL_RGBA, w, h, 0, GL_RGBA, GL_UNSIGNED_BYTE, image->pixels);
220 SDL_FreeSurface (image); /* No longer needed */
221
222 return texture;
223 }
224
225 int
226 RunGLTest (int argc, char *argv[],
227 int logo, int slowly, int bpp, float gamma, int noframe, int fsaa)
228 {
229 int i;
230 int rgb_size[3];
231 int w = 640;
232 int h = 480;
233 int done = 0;
234 int frames;
235 Uint32 start_time, this_time;
236 Uint32 video_flags;
237 int value;
238
239 if (SDL_Init (SDL_INIT_VIDEO) < 0)
240 {
241 fprintf (stderr, "Couldn't initialize SDL: %s\n", SDL_GetError ());
242 exit (1);
243 }
244
245 /* See if we should detect the display depth */
246 if (bpp == 0)
247 {
248 if (SDL_GetVideoInfo ()->vfmt->BitsPerPixel <= 8)
249 bpp = 8;
250 else
251 bpp = 16; /* More doesn't seem to work */
252 }
253
254 video_flags = SDL_OPENGL;
255
256 for (i = 1; argv[i]; ++i)
257 if (strcmp (argv[1], "-fullscreen") == 0)
258 video_flags |= SDL_FULLSCREEN;
259
260 if (noframe)
261 video_flags |= SDL_NOFRAME;
262
263 /* Initialize the display */
264 switch (bpp)
265 {
266 case 8:
267 rgb_size[0] = 3;
268 rgb_size[1] = 3;
269 rgb_size[2] = 2;
270 break;
271
272 case 15:
273 case 16:
274 rgb_size[0] = 5;
275 rgb_size[1] = 5;
276 rgb_size[2] = 5;
277 break;
278
279 default:
280 rgb_size[0] = 8;
281 rgb_size[1] = 8;
282 rgb_size[2] = 8;
283 break;
284 }
285
286 SDL_GL_SetAttribute (SDL_GL_RED_SIZE, rgb_size[0]);
287 SDL_GL_SetAttribute (SDL_GL_GREEN_SIZE, rgb_size[1]);
288 SDL_GL_SetAttribute (SDL_GL_BLUE_SIZE, rgb_size[2]);
289 SDL_GL_SetAttribute (SDL_GL_DEPTH_SIZE, 16);
290 SDL_GL_SetAttribute (SDL_GL_DOUBLEBUFFER, 1);
291
292 if (fsaa)
293 {
294 SDL_GL_SetAttribute (SDL_GL_MULTISAMPLEBUFFERS, 1);
295 SDL_GL_SetAttribute (SDL_GL_MULTISAMPLESAMPLES, fsaa);
296 }
297
298 if (SDL_SetVideoMode (w, h, bpp, video_flags) == NULL)
299 {
300 fprintf (stderr, "Couldn't set GL mode: %s\n", SDL_GetError ());
301 SDL_Quit ();
302 exit (1);
303 }
304
305 printf ("Screen BPP: %d\n", SDL_GetVideoSurface ()->format->BitsPerPixel);
306 printf ("\n");
307 printf ("Vendor : %s\n", glGetString (GL_VENDOR));
308 printf ("Renderer : %s\n", glGetString (GL_RENDERER));
309 printf ("Version : %s\n", glGetString (GL_VERSION));
310 printf ("Extensions : %s\n", glGetString (GL_EXTENSIONS));
311 printf ("\n");
312
313 SDL_GL_GetAttribute (SDL_GL_RED_SIZE, &value);
314 printf ("SDL_GL_RED_SIZE: requested %d, got %d\n", rgb_size[0], value);
315 SDL_GL_GetAttribute (SDL_GL_GREEN_SIZE, &value);
316 printf ("SDL_GL_GREEN_SIZE: requested %d, got %d\n", rgb_size[1], value);
317 SDL_GL_GetAttribute (SDL_GL_BLUE_SIZE, &value);
318 printf ("SDL_GL_BLUE_SIZE: requested %d, got %d\n", rgb_size[2], value);
319 SDL_GL_GetAttribute (SDL_GL_DEPTH_SIZE, &value);
320 printf ("SDL_GL_DEPTH_SIZE: requested %d, got %d\n", bpp, value);
321 SDL_GL_GetAttribute (SDL_GL_DOUBLEBUFFER, &value);
322 printf ("SDL_GL_DOUBLEBUFFER: requested 1, got %d\n", value);
323
324 if (fsaa)
325 {
326 SDL_GL_GetAttribute (SDL_GL_MULTISAMPLEBUFFERS, &value);
327 printf ("SDL_GL_MULTISAMPLEBUFFERS: requested 1, got %d\n", value);
328 SDL_GL_GetAttribute (SDL_GL_MULTISAMPLESAMPLES, &value);
329 printf ("SDL_GL_MULTISAMPLESAMPLES: requested %d, got %d\n", fsaa,
330 value);
331 }
332
333 /* Set the window manager title bar */
334 SDL_WM_SetCaption ("libgender rendering test", "gendertest");
335
336 /* Set the gamma for the window */
337 if (gamma != 0.0)
338 SDL_SetGamma (gamma, gamma, gamma);
339
340 // load a entity
341 for (int i = 0; i < 7; i++)
342 {
343 txtprt_parser p;
344 entity_transform *f = new entity_transform;
345 entity *e;
346 try
347 {
348 e = p.read ("test.blasc");
349 } catch (txtprt_i_exception & e)
350 {
351 cout << "ERR: " << e.msg << endl;
352 }
353 f->set (e);
354 f->update (matrix::translation (vec3 (0, -1, -i*5)));
355 f->show ();
356 }
357
358 camera.orig.x = camera.orig.y = camera.orig.z = 0;
359 camera.p = point (0, 0, 10);
360 camera.d = vec3 (0, 0, -1);
361 camera.u = vec3 (0, 1, 0);
362 camera.w = w; camera.h = h;
363 camera.fov = 90;
364
365 glMatrixMode (GL_MODELVIEW);
366 glLoadIdentity ();
367
368 glEnable (GL_CULL_FACE);
369 glEnable (GL_DEPTH_TEST);
370 //glEnable(GL_VERTEX_PROGRAM_ARB);
371 //glEnable(GL_FRAGMENT_PROGRAM_ARB);
372
373 glShadeModel (GL_SMOOTH);
374
375 glEnable (GL_LIGHTING);
376 //GLfloat lightc[4] = { 1, 0.1, 0.1, 1 };
377 //glLightf (GL_LIGHT0, GL_QUADRATIC_ATTENUATION);
378 //glLightfv (GL_LIGHT0, GL_DIFFUSE, lightc);
379 glEnable (GL_LIGHT0);
380
381 cgc = cgCreateContext ();
382 vsh = cgCreateProgramFromFile (cgc, CG_SOURCE, "vsh.cg", CG_PROFILE_ARBVP1, 0, 0);
383 CheckCgError ();
384 cgGLLoadProgram (vsh);
385 CheckCgError ();
386 mv = cgGetNamedParameter (vsh, "WorldProj");
387 mvp = cgGetNamedParameter (vsh, "WorldViewProj");
388 lightpos = cgGetNamedParameter (vsh, "LightPos");
389 CheckCgError ();
390 cgGLEnableProfile (CG_PROFILE_ARBVP1);
391 CheckCgError ();
392
393 fsh = cgCreateProgramFromFile (cgc, CG_SOURCE, "fsh.cg", CG_PROFILE_ARBFP1, 0, 0);
394 CheckCgError ();
395 cgGLLoadProgram (fsh);
396 CheckCgError ();
397 cgGLEnableProfile (CG_PROFILE_ARBFP1);
398 CheckCgError ();
399
400 cgGLBindProgram (vsh);
401 CheckCgError ();
402 cgGLBindProgram (fsh);
403 CheckCgError ();
404
405 /* Loop until done. */
406 start_time = SDL_GetTicks ();
407 frames = 0;
408
409 draw_context c (camera);
410
411 while (!done)
412 {
413 GLenum gl_error;
414 char *sdl_error;
415 SDL_Event event;
416
417 glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
418
419 camera.p.x += (camera_velocity_factor * camera_velocity.x) * timer.diff;
420 camera.p.y += (camera_velocity_factor * camera_velocity.y) * timer.diff;
421 camera.p.z += (camera_velocity_factor * camera_velocity.z) * timer.diff;
422
423 cgGLSetParameter4f (lightpos, camera.p.x, camera.p.y, camera.p.z, 1);
424
425 #if 0
426 static GLfloat ry;
427 ry += 0.001;
428 camera.d.x = cos (ry);
429 camera.d.z = sin (ry);
430 //camera.d.y = sin (ry * 0.1);
431 #endif
432
433 c.mode = draw_context::DEPTH;
434 camera.draw (c);
435 c.mode = draw_context::LIGHTED;
436 camera.draw (c);
437
438 SDL_GL_SwapBuffers ();
439 timer.frame ();
440
441 /* Check for error conditions. */
442 gl_error = glGetError ();
443
444 if (gl_error != GL_NO_ERROR)
445 fprintf (stderr, "testgl: OpenGL error: %d\n", gl_error);
446
447 sdl_error = SDL_GetError ();
448
449 if (sdl_error[0] != '\0')
450 {
451 fprintf (stderr, "testgl: SDL error '%s'\n", sdl_error);
452 SDL_ClearError ();
453 }
454
455 /* Allow the user to see what's happening */
456 //SDL_Delay (20);
457
458 /* Check if there's a pending event. */
459 while (SDL_PollEvent (&event))
460 done = HandleEvent (&event);
461
462
463 ++frames;
464 }
465
466 /* Print out the frames per second */
467 this_time = SDL_GetTicks ();
468 if (this_time != start_time)
469 {
470 printf ("%2.2f FPS\n",
471 ((float) frames / (this_time - start_time)) * 1000.0);
472 }
473
474 if (global_image)
475 {
476 SDL_FreeSurface (global_image);
477 global_image = NULL;
478 }
479 if (global_texture)
480 {
481 glDeleteTextures (1, &global_texture);
482 global_texture = 0;
483 }
484
485 /* Destroy our GL context, etc. */
486 SDL_Quit ();
487 return (0);
488 }
489
490 int
491 main (int argc, char *argv[])
492 {
493 int i, logo;
494 int numtests;
495 int bpp = 0;
496 int slowly;
497 float gamma = 0.0;
498 int noframe = 0;
499 int fsaa = 0;
500
501 logo = 0;
502 slowly = 0;
503 numtests = 1;
504 for (i = 1; argv[i]; ++i)
505 {
506 if (strcmp (argv[i], "-twice") == 0)
507 {
508 ++numtests;
509 }
510 if (strcmp (argv[i], "-slow") == 0)
511 {
512 slowly = 1;
513 }
514 if (strcmp (argv[i], "-bpp") == 0)
515 {
516 bpp = atoi (argv[++i]);
517 }
518 if (strcmp (argv[i], "-gamma") == 0)
519 {
520 gamma = (float) atof (argv[++i]);
521 }
522 if (strcmp (argv[i], "-noframe") == 0)
523 {
524 noframe = 1;
525 }
526 if (strcmp (argv[i], "-fsaa") == 0)
527 {
528 ++fsaa;
529 }
530 if (strncmp (argv[i], "-h", 2) == 0)
531 {
532 printf
533 ("Usage: %s [-twice] [-logo] [-slow] [-bpp n] [-gamma n] [-noframe] [-fsaa]\n",
534 argv[0]);
535 exit (0);
536 }
537 }
538
539 for (i = 0; i < numtests; ++i)
540 RunGLTest (argc, argv, logo, slowly, bpp, gamma, noframe, fsaa);
541
542 return 0;
543 }