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 |
while (!done) |
403 |
{ |
404 |
GLenum gl_error; |
405 |
char *sdl_error; |
406 |
SDL_Event event; |
407 |
|
408 |
glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); |
409 |
|
410 |
camera.p.x += (camera_velocity_factor * camera_velocity.x) * timer.diff; |
411 |
camera.p.y += (camera_velocity_factor * camera_velocity.y) * timer.diff; |
412 |
camera.p.z += (camera_velocity_factor * camera_velocity.z) * timer.diff; |
413 |
|
414 |
cgGLSetParameter4f (lightpos, camera.p.x, camera.p.y, camera.p.z, 1); |
415 |
|
416 |
#if 0 |
417 |
static GLfloat ry; |
418 |
ry += 0.001; |
419 |
camera.d.x = cos (ry); |
420 |
camera.d.z = sin (ry); |
421 |
//camera.d.y = sin (ry * 0.1); |
422 |
#endif |
423 |
|
424 |
camera.mode = view::DEPTH; |
425 |
camera.draw (); |
426 |
camera.mode = view::LIGHTED; |
427 |
camera.draw (); |
428 |
|
429 |
SDL_GL_SwapBuffers (); |
430 |
timer.frame (); |
431 |
|
432 |
/* Check for error conditions. */ |
433 |
gl_error = glGetError (); |
434 |
|
435 |
if (gl_error != GL_NO_ERROR) |
436 |
fprintf (stderr, "testgl: OpenGL error: %d\n", gl_error); |
437 |
|
438 |
sdl_error = SDL_GetError (); |
439 |
|
440 |
if (sdl_error[0] != '\0') |
441 |
{ |
442 |
fprintf (stderr, "testgl: SDL error '%s'\n", sdl_error); |
443 |
SDL_ClearError (); |
444 |
} |
445 |
|
446 |
/* Allow the user to see what's happening */ |
447 |
//SDL_Delay (20); |
448 |
|
449 |
/* Check if there's a pending event. */ |
450 |
while (SDL_PollEvent (&event)) |
451 |
done = HandleEvent (&event); |
452 |
|
453 |
|
454 |
++frames; |
455 |
} |
456 |
|
457 |
/* Print out the frames per second */ |
458 |
this_time = SDL_GetTicks (); |
459 |
if (this_time != start_time) |
460 |
{ |
461 |
printf ("%2.2f FPS\n", |
462 |
((float) frames / (this_time - start_time)) * 1000.0); |
463 |
} |
464 |
|
465 |
if (global_image) |
466 |
{ |
467 |
SDL_FreeSurface (global_image); |
468 |
global_image = NULL; |
469 |
} |
470 |
if (global_texture) |
471 |
{ |
472 |
glDeleteTextures (1, &global_texture); |
473 |
global_texture = 0; |
474 |
} |
475 |
|
476 |
/* Destroy our GL context, etc. */ |
477 |
SDL_Quit (); |
478 |
return (0); |
479 |
} |
480 |
|
481 |
int |
482 |
main (int argc, char *argv[]) |
483 |
{ |
484 |
int i, logo; |
485 |
int numtests; |
486 |
int bpp = 0; |
487 |
int slowly; |
488 |
float gamma = 0.0; |
489 |
int noframe = 0; |
490 |
int fsaa = 0; |
491 |
|
492 |
logo = 0; |
493 |
slowly = 0; |
494 |
numtests = 1; |
495 |
for (i = 1; argv[i]; ++i) |
496 |
{ |
497 |
if (strcmp (argv[i], "-twice") == 0) |
498 |
{ |
499 |
++numtests; |
500 |
} |
501 |
if (strcmp (argv[i], "-slow") == 0) |
502 |
{ |
503 |
slowly = 1; |
504 |
} |
505 |
if (strcmp (argv[i], "-bpp") == 0) |
506 |
{ |
507 |
bpp = atoi (argv[++i]); |
508 |
} |
509 |
if (strcmp (argv[i], "-gamma") == 0) |
510 |
{ |
511 |
gamma = (float) atof (argv[++i]); |
512 |
} |
513 |
if (strcmp (argv[i], "-noframe") == 0) |
514 |
{ |
515 |
noframe = 1; |
516 |
} |
517 |
if (strcmp (argv[i], "-fsaa") == 0) |
518 |
{ |
519 |
++fsaa; |
520 |
} |
521 |
if (strncmp (argv[i], "-h", 2) == 0) |
522 |
{ |
523 |
printf |
524 |
("Usage: %s [-twice] [-logo] [-slow] [-bpp n] [-gamma n] [-noframe] [-fsaa]\n", |
525 |
argv[0]); |
526 |
exit (0); |
527 |
} |
528 |
} |
529 |
|
530 |
for (i = 0; i < numtests; ++i) |
531 |
RunGLTest (argc, argv, logo, slowly, bpp, gamma, noframe, fsaa); |
532 |
|
533 |
return 0; |
534 |
} |