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/cvs/libgender/test.C
Revision: 1.32
Committed: Tue Oct 5 10:28:49 2004 UTC (19 years, 8 months ago) by root
Content type: text/plain
Branch: MAIN
Changes since 1.31: +1 -2 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 = 20;
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 case SDL_KEYDOWN:
104 if (event->key.keysym.sym == SDLK_UP) camera_velocity.z--;
105 if (event->key.keysym.sym == SDLK_DOWN) camera_velocity.z++;
106 if (event->key.keysym.sym == SDLK_LEFT) camera_velocity.x--;
107 if (event->key.keysym.sym == SDLK_RIGHT) camera_velocity.x++;
108 if (event->key.keysym.sym == SDLK_a) camera_velocity.y--;
109 if (event->key.keysym.sym == SDLK_s) camera_velocity.y++;
110 if (event->key.keysym.sym == SDLK_v) camera_velocity_factor *= 1.5;
111 if (event->key.keysym.sym == SDLK_b) camera_velocity_factor /= 1.5;
112
113 if (event->key.keysym.sym == SDLK_ESCAPE)
114 done = 1;
115
116 if ((event->key.keysym.sym == SDLK_g) &&
117 (event->key.keysym.mod & KMOD_CTRL))
118 HotKey_ToggleGrab ();
119
120 if ((event->key.keysym.sym == SDLK_z) &&
121 (event->key.keysym.mod & KMOD_CTRL))
122 HotKey_Iconify ();
123
124 if ((event->key.keysym.sym == SDLK_RETURN) &&
125 (event->key.keysym.mod & KMOD_ALT))
126 HotKey_ToggleFullScreen ();
127
128 break;
129
130 case SDL_KEYUP:
131 if (event->key.keysym.sym == SDLK_UP) camera_velocity.z++;
132 if (event->key.keysym.sym == SDLK_DOWN) camera_velocity.z--;
133 if (event->key.keysym.sym == SDLK_LEFT) camera_velocity.x++;
134 if (event->key.keysym.sym == SDLK_RIGHT) camera_velocity.x--;
135 if (event->key.keysym.sym == SDLK_a) camera_velocity.y++;
136 if (event->key.keysym.sym == SDLK_s) camera_velocity.y--;
137 break;
138
139 case SDL_QUIT:
140 done = 1;
141 break;
142 }
143
144 return (done);
145 }
146
147 /* Quick utility function for texture creation */
148 static int
149 power_of_two (int input)
150 {
151 int value = 1;
152
153 while (value < input)
154 {
155 value <<= 1;
156 }
157 return value;
158 }
159
160 GLuint
161 SDL_GL_LoadTexture (SDL_Surface * surface, GLfloat * texcoord)
162 {
163 GLuint texture;
164 int w, h;
165 SDL_Surface *image;
166 SDL_Rect area;
167 Uint32 saved_flags;
168 Uint8 saved_alpha;
169
170 /* Use the surface width and height expanded to powers of 2 */
171 w = power_of_two (surface->w);
172 h = power_of_two (surface->h);
173 texcoord[0] = 0.0f; /* Min X */
174 texcoord[1] = 0.0f; /* Min Y */
175 texcoord[2] = (GLfloat) surface->w / w; /* Max X */
176 texcoord[3] = (GLfloat) surface->h / h; /* Max Y */
177
178 image = SDL_CreateRGBSurface (SDL_SWSURFACE, w, h, 32,
179 #if SDL_BYTEORDER == SDL_LIL_ENDIAN /* OpenGL RGBA masks */
180 0x000000FF, 0x0000FF00, 0x00FF0000, 0xFF000000
181 #else
182 0xFF000000, 0x00FF0000, 0x0000FF00, 0x000000FF
183 #endif
184 );
185 if (image == NULL)
186 {
187 return 0;
188 }
189
190 /* Save the alpha blending attributes */
191 saved_flags = surface->flags & (SDL_SRCALPHA | SDL_RLEACCELOK);
192 saved_alpha = surface->format->alpha;
193 if ((saved_flags & SDL_SRCALPHA) == SDL_SRCALPHA)
194 {
195 SDL_SetAlpha (surface, 0, 0);
196 }
197
198 /* Copy the surface into the GL texture image */
199 area.x = 0;
200 area.y = 0;
201 area.w = surface->w;
202 area.h = surface->h;
203 SDL_BlitSurface (surface, &area, image, &area);
204
205 /* Restore the alpha blending attributes */
206 if ((saved_flags & SDL_SRCALPHA) == SDL_SRCALPHA)
207 {
208 SDL_SetAlpha (surface, saved_flags, saved_alpha);
209 }
210
211 /* Create an OpenGL texture for the image */
212 glGenTextures (1, &texture);
213 glBindTexture (GL_TEXTURE_2D, texture);
214 glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
215 glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
216 glTexImage2D (GL_TEXTURE_2D,
217 0,
218 GL_RGBA, w, h, 0, GL_RGBA, GL_UNSIGNED_BYTE, image->pixels);
219 SDL_FreeSurface (image); /* No longer needed */
220
221 return texture;
222 }
223
224 int
225 RunGLTest (int argc, char *argv[],
226 int logo, int slowly, int bpp, float gamma, int noframe, int fsaa)
227 {
228 int i;
229 int rgb_size[3];
230 int w = 640;
231 int h = 480;
232 int done = 0;
233 int frames;
234 Uint32 start_time, this_time;
235 Uint32 video_flags;
236 int value;
237
238 if (SDL_Init (SDL_INIT_VIDEO) < 0)
239 {
240 fprintf (stderr, "Couldn't initialize SDL: %s\n", SDL_GetError ());
241 exit (1);
242 }
243
244 /* See if we should detect the display depth */
245 if (bpp == 0)
246 {
247 if (SDL_GetVideoInfo ()->vfmt->BitsPerPixel <= 8)
248 bpp = 8;
249 else
250 bpp = 16; /* More doesn't seem to work */
251 }
252
253 video_flags = SDL_OPENGL;
254
255 for (i = 1; argv[i]; ++i)
256 if (strcmp (argv[1], "-fullscreen") == 0)
257 video_flags |= SDL_FULLSCREEN;
258
259 if (noframe)
260 video_flags |= SDL_NOFRAME;
261
262 /* Initialize the display */
263 switch (bpp)
264 {
265 case 8:
266 rgb_size[0] = 3;
267 rgb_size[1] = 3;
268 rgb_size[2] = 2;
269 break;
270
271 case 15:
272 case 16:
273 rgb_size[0] = 5;
274 rgb_size[1] = 5;
275 rgb_size[2] = 5;
276 break;
277
278 default:
279 rgb_size[0] = 8;
280 rgb_size[1] = 8;
281 rgb_size[2] = 8;
282 break;
283 }
284
285 SDL_GL_SetAttribute (SDL_GL_RED_SIZE, rgb_size[0]);
286 SDL_GL_SetAttribute (SDL_GL_GREEN_SIZE, rgb_size[1]);
287 SDL_GL_SetAttribute (SDL_GL_BLUE_SIZE, rgb_size[2]);
288 SDL_GL_SetAttribute (SDL_GL_DEPTH_SIZE, 16);
289 SDL_GL_SetAttribute (SDL_GL_DOUBLEBUFFER, 1);
290
291 if (fsaa)
292 {
293 SDL_GL_SetAttribute (SDL_GL_MULTISAMPLEBUFFERS, 1);
294 SDL_GL_SetAttribute (SDL_GL_MULTISAMPLESAMPLES, fsaa);
295 }
296
297 if (SDL_SetVideoMode (w, h, bpp, video_flags) == NULL)
298 {
299 fprintf (stderr, "Couldn't set GL mode: %s\n", SDL_GetError ());
300 SDL_Quit ();
301 exit (1);
302 }
303
304 printf ("Screen BPP: %d\n", SDL_GetVideoSurface ()->format->BitsPerPixel);
305 printf ("\n");
306 printf ("Vendor : %s\n", glGetString (GL_VENDOR));
307 printf ("Renderer : %s\n", glGetString (GL_RENDERER));
308 printf ("Version : %s\n", glGetString (GL_VERSION));
309 printf ("Extensions : %s\n", glGetString (GL_EXTENSIONS));
310 printf ("\n");
311
312 SDL_GL_GetAttribute (SDL_GL_RED_SIZE, &value);
313 printf ("SDL_GL_RED_SIZE: requested %d, got %d\n", rgb_size[0], value);
314 SDL_GL_GetAttribute (SDL_GL_GREEN_SIZE, &value);
315 printf ("SDL_GL_GREEN_SIZE: requested %d, got %d\n", rgb_size[1], value);
316 SDL_GL_GetAttribute (SDL_GL_BLUE_SIZE, &value);
317 printf ("SDL_GL_BLUE_SIZE: requested %d, got %d\n", rgb_size[2], value);
318 SDL_GL_GetAttribute (SDL_GL_DEPTH_SIZE, &value);
319 printf ("SDL_GL_DEPTH_SIZE: requested %d, got %d\n", bpp, value);
320 SDL_GL_GetAttribute (SDL_GL_DOUBLEBUFFER, &value);
321 printf ("SDL_GL_DOUBLEBUFFER: requested 1, got %d\n", value);
322
323 if (fsaa)
324 {
325 SDL_GL_GetAttribute (SDL_GL_MULTISAMPLEBUFFERS, &value);
326 printf ("SDL_GL_MULTISAMPLEBUFFERS: requested 1, got %d\n", value);
327 SDL_GL_GetAttribute (SDL_GL_MULTISAMPLESAMPLES, &value);
328 printf ("SDL_GL_MULTISAMPLESAMPLES: requested %d, got %d\n", fsaa,
329 value);
330 }
331
332 /* Set the window manager title bar */
333 SDL_WM_SetCaption ("libgender rendering test", "gendertest");
334
335 /* Set the gamma for the window */
336 if (gamma != 0.0)
337 SDL_SetGamma (gamma, gamma, gamma);
338
339 // load a entity
340 for (int i = 0; i < 7; i++)
341 {
342 txtprt_parser p;
343 entity_transform *f = new entity_transform;
344 entity *e;
345 try
346 {
347 e = p.read ("test.blasc");
348 } catch (txtprt_i_exception & e)
349 {
350 cout << "ERR: " << e.msg << endl;
351 }
352 f->set (e);
353 f->update (matrix::translation (vec3 (0, -1, -i*5)));
354 f->show ();
355 }
356
357 camera.orig.x = camera.orig.y = camera.orig.z = 0;
358 camera.p = point (0, 0, 10);
359 camera.d = vec3 (0, 0, -1);
360 camera.u = vec3 (0, 1, 0);
361 camera.w = w; camera.h = h;
362 camera.fov = 90;
363
364 glMatrixMode (GL_MODELVIEW);
365 glLoadIdentity ();
366
367 glEnable (GL_CULL_FACE);
368 glEnable (GL_DEPTH_TEST);
369
370 glShadeModel (GL_SMOOTH);
371
372 glEnable (GL_LIGHTING);
373 //GLfloat lightc[4] = { 1, 0.1, 0.1, 1 };
374 //glLightf (GL_LIGHT0, GL_QUADRATIC_ATTENUATION);
375 //glLightfv (GL_LIGHT0, GL_DIFFUSE, lightc);
376 glEnable (GL_LIGHT0);
377
378 cgc = cgCreateContext ();
379 vsh = cgCreateProgramFromFile (cgc, CG_SOURCE, "vsh.cg", CG_PROFILE_ARBVP1, 0, 0);
380 CheckCgError ();
381 cgGLLoadProgram (vsh);
382 CheckCgError ();
383 mv = cgGetNamedParameter (vsh, "WorldProj");
384 mvp = cgGetNamedParameter (vsh, "WorldViewProj");
385 lightpos = cgGetNamedParameter (vsh, "LightPos");
386 CheckCgError ();
387
388 fsh = cgCreateProgramFromFile (cgc, CG_SOURCE, "fsh.cg", CG_PROFILE_ARBFP1, 0, 0);
389 CheckCgError ();
390 cgGLLoadProgram (fsh);
391 CheckCgError ();
392
393 cgGLBindProgram (vsh);
394 CheckCgError ();
395 cgGLBindProgram (fsh);
396 CheckCgError ();
397
398 /* Loop until done. */
399 start_time = SDL_GetTicks ();
400 frames = 0;
401
402 draw_context c (camera);
403
404 while (!done)
405 {
406 GLenum gl_error;
407 char *sdl_error;
408 SDL_Event event;
409
410 glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
411
412 camera.p.x += (camera_velocity_factor * camera_velocity.x) * timer.diff;
413 camera.p.y += (camera_velocity_factor * camera_velocity.y) * timer.diff;
414 camera.p.z += (camera_velocity_factor * camera_velocity.z) * timer.diff;
415
416 cgGLSetParameter4f (lightpos, camera.p.x, camera.p.y, camera.p.z, 1);
417
418 #if 0
419 static GLfloat ry;
420 ry += 0.001;
421 camera.d.x = cos (ry);
422 camera.d.z = sin (ry);
423 //camera.d.y = sin (ry * 0.1);
424 #endif
425
426 c.mode = draw_context::DEPTH;
427 camera.draw (c);
428 c.mode = draw_context::LIGHTED;
429 camera.draw (c);
430
431 SDL_GL_SwapBuffers ();
432 timer.frame ();
433
434 /* Check for error conditions. */
435 gl_error = glGetError ();
436
437 if (gl_error != GL_NO_ERROR)
438 fprintf (stderr, "testgl: OpenGL error: %d\n", gl_error);
439
440 sdl_error = SDL_GetError ();
441
442 if (sdl_error[0] != '\0')
443 {
444 fprintf (stderr, "testgl: SDL error '%s'\n", sdl_error);
445 SDL_ClearError ();
446 }
447
448 /* Allow the user to see what's happening */
449 //SDL_Delay (20);
450
451 /* Check if there's a pending event. */
452 while (SDL_PollEvent (&event))
453 done = HandleEvent (&event);
454
455
456 ++frames;
457 }
458
459 /* Print out the frames per second */
460 this_time = SDL_GetTicks ();
461 if (this_time != start_time)
462 {
463 printf ("%2.2f FPS\n",
464 ((float) frames / (this_time - start_time)) * 1000.0);
465 }
466
467 if (global_image)
468 {
469 SDL_FreeSurface (global_image);
470 global_image = NULL;
471 }
472 if (global_texture)
473 {
474 glDeleteTextures (1, &global_texture);
475 global_texture = 0;
476 }
477
478 /* Destroy our GL context, etc. */
479 SDL_Quit ();
480 return (0);
481 }
482
483 int
484 main (int argc, char *argv[])
485 {
486 int i, logo;
487 int numtests;
488 int bpp = 0;
489 int slowly;
490 float gamma = 0.0;
491 int noframe = 0;
492 int fsaa = 0;
493
494 logo = 0;
495 slowly = 0;
496 numtests = 1;
497 for (i = 1; argv[i]; ++i)
498 {
499 if (strcmp (argv[i], "-twice") == 0)
500 {
501 ++numtests;
502 }
503 if (strcmp (argv[i], "-slow") == 0)
504 {
505 slowly = 1;
506 }
507 if (strcmp (argv[i], "-bpp") == 0)
508 {
509 bpp = atoi (argv[++i]);
510 }
511 if (strcmp (argv[i], "-gamma") == 0)
512 {
513 gamma = (float) atof (argv[++i]);
514 }
515 if (strcmp (argv[i], "-noframe") == 0)
516 {
517 noframe = 1;
518 }
519 if (strcmp (argv[i], "-fsaa") == 0)
520 {
521 ++fsaa;
522 }
523 if (strncmp (argv[i], "-h", 2) == 0)
524 {
525 printf
526 ("Usage: %s [-twice] [-logo] [-slow] [-bpp n] [-gamma n] [-noframe] [-fsaa]\n",
527 argv[0]);
528 exit (0);
529 }
530 }
531
532 for (i = 0; i < numtests; ++i)
533 RunGLTest (argc, argv, logo, slowly, bpp, gamma, noframe, fsaa);
534
535 return 0;
536 }