libgender/test.C

#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <math.h>

#include "SDL.h"

#include "SDL_opengl.h"

/* Undefine this if you want a flat cube instead of a rainbow cube */
#define SHADED_CUBE

/* Define this to be the name of the logo image to use with -logo */
#define LOGO_FILE       "icon.bmp"

static SDL_Surface *global_image = NULL;
static GLuint global_texture = 0;

#include "entity.h"

#include "txtprt_import.h"

/**********************************************************************/

void
HotKey_ToggleFullScreen (void)
{
  SDL_Surface *screen;

  screen = SDL_GetVideoSurface ();
  if (SDL_WM_ToggleFullScreen (screen))
    printf ("Toggled fullscreen mode - now %s\n",
            (screen->flags & SDL_FULLSCREEN) ? "fullscreen" : "windowed");
  else
    printf ("Unable to toggle fullscreen mode\n");
}

void
HotKey_ToggleGrab (void)
{
  SDL_GrabMode mode;

  printf ("Ctrl-G: toggling input grab!\n");
  mode = SDL_WM_GrabInput (SDL_GRAB_QUERY);
  if (mode == SDL_GRAB_ON)
    printf ("Grab was on\n");
  else
    printf ("Grab was off\n");

  mode = SDL_WM_GrabInput (mode ? SDL_GRAB_OFF : SDL_GRAB_ON);
  if (mode == SDL_GRAB_ON)
    printf ("Grab is now on\n");
  else
    printf ("Grab is now off\n");
}

void
HotKey_Iconify (void)
{
  printf ("Ctrl-Z: iconifying window!\n");
  SDL_WM_IconifyWindow ();
}

int
HandleEvent (SDL_Event * event)
{
  int done;

  done = 0;
  switch (event->type)
    {
    case SDL_ACTIVEEVENT:
      /* See what happened */
      printf ("app %s ", event->active.gain ? "gained" : "lost");
      if (event->active.state & SDL_APPACTIVE)
        {
          printf ("active ");
        }
      else if (event->active.state & SDL_APPMOUSEFOCUS)
        {
          printf ("mouse ");
        }
      else if (event->active.state & SDL_APPINPUTFOCUS)
        {
          printf ("input ");
        }

      printf ("focus\n");
      break;

    case SDL_KEYDOWN:
      if (event->key.keysym.sym == SDLK_ESCAPE)
        {
          done = 1;
        }

      if ((event->key.keysym.sym == SDLK_g) &&
          (event->key.keysym.mod & KMOD_CTRL))
        {
          HotKey_ToggleGrab ();
        }

      if ((event->key.keysym.sym == SDLK_z) &&
          (event->key.keysym.mod & KMOD_CTRL))
        {
          HotKey_Iconify ();
        }

      if ((event->key.keysym.sym == SDLK_RETURN) &&
          (event->key.keysym.mod & KMOD_ALT))
        {
          HotKey_ToggleFullScreen ();
        }

      printf ("key '%s' pressed\n", SDL_GetKeyName (event->key.keysym.sym));
      break;

    case SDL_QUIT:
      done = 1;
      break;
    }

  return (done);
}

void
SDL_GL_Enter2DMode ()
{
  SDL_Surface *screen = SDL_GetVideoSurface ();

  /* Note, there may be other things you need to change,
     depending on how you have your OpenGL state set up.
   */
  glPushAttrib (GL_ENABLE_BIT);
  glDisable (GL_DEPTH_TEST);
  glDisable (GL_CULL_FACE);
  glEnable (GL_TEXTURE_2D);

  /* This allows alpha blending of 2D textures with the scene */
  glEnable (GL_BLEND);
  glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);

  glViewport (0, 0, screen->w, screen->h);

  glMatrixMode (GL_PROJECTION);
  glPushMatrix ();
  glLoadIdentity ();

  glOrtho (0.0, (GLdouble) screen->w, (GLdouble) screen->h, 0.0, 0.0, 1.0);

  glMatrixMode (GL_MODELVIEW);
  glPushMatrix ();
  glLoadIdentity ();

  glTexEnvf (GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_DECAL);
}

void
SDL_GL_Leave2DMode ()
{
  glMatrixMode (GL_MODELVIEW);
  glPopMatrix ();

  glMatrixMode (GL_PROJECTION);
  glPopMatrix ();

  glPopAttrib ();
}

/* Quick utility function for texture creation */
static int
power_of_two (int input)
{
  int value = 1;

  while (value < input)
    {
      value <<= 1;
    }
  return value;
}

GLuint
SDL_GL_LoadTexture (SDL_Surface * surface, GLfloat * texcoord)
{
  GLuint texture;
  int w, h;
  SDL_Surface *image;
  SDL_Rect area;
  Uint32 saved_flags;
  Uint8 saved_alpha;

  /* Use the surface width and height expanded to powers of 2 */
  w = power_of_two (surface->w);
  h = power_of_two (surface->h);
  texcoord[0] = 0.0f;           /* Min X */
  texcoord[1] = 0.0f;           /* Min Y */
  texcoord[2] = (GLfloat) surface->w / w;       /* Max X */
  texcoord[3] = (GLfloat) surface->h / h;       /* Max Y */

  image = SDL_CreateRGBSurface (SDL_SWSURFACE, w, h, 32,
#if SDL_BYTEORDER == SDL_LIL_ENDIAN     /* OpenGL RGBA masks */
                                0x000000FF, 0x0000FF00, 0x00FF0000, 0xFF000000
#else
                                0xFF000000, 0x00FF0000, 0x0000FF00, 0x000000FF
#endif
    );
  if (image == NULL)
    {
      return 0;
    }

  /* Save the alpha blending attributes */
  saved_flags = surface->flags & (SDL_SRCALPHA | SDL_RLEACCELOK);
  saved_alpha = surface->format->alpha;
  if ((saved_flags & SDL_SRCALPHA) == SDL_SRCALPHA)
    {
      SDL_SetAlpha (surface, 0, 0);
    }

  /* Copy the surface into the GL texture image */
  area.x = 0;
  area.y = 0;
  area.w = surface->w;
  area.h = surface->h;
  SDL_BlitSurface (surface, &area, image, &area);

  /* Restore the alpha blending attributes */
  if ((saved_flags & SDL_SRCALPHA) == SDL_SRCALPHA)
    {
      SDL_SetAlpha (surface, saved_flags, saved_alpha);
    }

  /* Create an OpenGL texture for the image */
  glGenTextures (1, &texture);
  glBindTexture (GL_TEXTURE_2D, texture);
  glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
  glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
  glTexImage2D (GL_TEXTURE_2D,
                0,
                GL_RGBA, w, h, 0, GL_RGBA, GL_UNSIGNED_BYTE, image->pixels);
  SDL_FreeSurface (image);      /* No longer needed */

  return texture;
}

int
RunGLTest (int argc, char *argv[],
           int logo, int slowly, int bpp, float gamma, int noframe, int fsaa)
{
  int i;
  int rgb_size[3];
  int w = 640;
  int h = 480;
  int done = 0;
  int frames;
  Uint32 start_time, this_time;
  Uint32 video_flags;
  int value;

  if (SDL_Init (SDL_INIT_VIDEO) < 0)
    {
      fprintf (stderr, "Couldn't initialize SDL: %s\n", SDL_GetError ());
      exit (1);
    }

  /* See if we should detect the display depth */
  if (bpp == 0)
    {
      if (SDL_GetVideoInfo ()->vfmt->BitsPerPixel <= 8)
        bpp = 8;
      else
        bpp = 16;               /* More doesn't seem to work */
    }

  video_flags = SDL_OPENGL;

  for (i = 1; argv[i]; ++i)
    if (strcmp (argv[1], "-fullscreen") == 0)
      video_flags |= SDL_FULLSCREEN;

  if (noframe)
    video_flags |= SDL_NOFRAME;

  /* Initialize the display */
  switch (bpp)
    {
    case 8:
      rgb_size[0] = 3;
      rgb_size[1] = 3;
      rgb_size[2] = 2;
      break;

    case 15:
    case 16:
      rgb_size[0] = 5;
      rgb_size[1] = 5;
      rgb_size[2] = 5;
      break;

    default:
      rgb_size[0] = 8;
      rgb_size[1] = 8;
      rgb_size[2] = 8;
      break;
    }
  SDL_GL_SetAttribute (SDL_GL_RED_SIZE, rgb_size[0]);
  SDL_GL_SetAttribute (SDL_GL_GREEN_SIZE, rgb_size[1]);
  SDL_GL_SetAttribute (SDL_GL_BLUE_SIZE, rgb_size[2]);
  SDL_GL_SetAttribute (SDL_GL_DEPTH_SIZE, 16);
  SDL_GL_SetAttribute (SDL_GL_DOUBLEBUFFER, 1);

  if (fsaa)
    {
      SDL_GL_SetAttribute (SDL_GL_MULTISAMPLEBUFFERS, 1);
      SDL_GL_SetAttribute (SDL_GL_MULTISAMPLESAMPLES, fsaa);
    }

  if (SDL_SetVideoMode (w, h, bpp, video_flags) == NULL)
    {
      fprintf (stderr, "Couldn't set GL mode: %s\n", SDL_GetError ());
      SDL_Quit ();
      exit (1);
    }

  printf ("Screen BPP: %d\n", SDL_GetVideoSurface ()->format->BitsPerPixel);
  printf ("\n");
  printf ("Vendor     : %s\n", glGetString (GL_VENDOR));
  printf ("Renderer   : %s\n", glGetString (GL_RENDERER));
  printf ("Version    : %s\n", glGetString (GL_VERSION));
  printf ("Extensions : %s\n", glGetString (GL_EXTENSIONS));
  printf ("\n");

  SDL_GL_GetAttribute (SDL_GL_RED_SIZE, &value);
  printf ("SDL_GL_RED_SIZE: requested %d, got %d\n", rgb_size[0], value);
  SDL_GL_GetAttribute (SDL_GL_GREEN_SIZE, &value);
  printf ("SDL_GL_GREEN_SIZE: requested %d, got %d\n", rgb_size[1], value);
  SDL_GL_GetAttribute (SDL_GL_BLUE_SIZE, &value);
  printf ("SDL_GL_BLUE_SIZE: requested %d, got %d\n", rgb_size[2], value);
  SDL_GL_GetAttribute (SDL_GL_DEPTH_SIZE, &value);
  printf ("SDL_GL_DEPTH_SIZE: requested %d, got %d\n", bpp, value);
  SDL_GL_GetAttribute (SDL_GL_DOUBLEBUFFER, &value);
  printf ("SDL_GL_DOUBLEBUFFER: requested 1, got %d\n", value);

  if (fsaa)
    {
      SDL_GL_GetAttribute (SDL_GL_MULTISAMPLEBUFFERS, &value);
      printf ("SDL_GL_MULTISAMPLEBUFFERS: requested 1, got %d\n", value);
      SDL_GL_GetAttribute (SDL_GL_MULTISAMPLESAMPLES, &value);
      printf ("SDL_GL_MULTISAMPLESAMPLES: requested %d, got %d\n", fsaa,
              value);
    }

  /* Set the window manager title bar */
  SDL_WM_SetCaption ("SDL GL test", "testgl");

  /* Set the gamma for the window */
  if (gamma != 0.0)
    SDL_SetGamma (gamma, gamma, gamma);

  view v;
  v.p = point (0, 0, 0);
  v.d = vec3 (0, 0, -1);
  v.u = vec3 (0, 1, 0);
  v.w = w; v.h = h;
  v.fov = 90;

  glMatrixMode (GL_MODELVIEW);
  glLoadIdentity ();

  glEnable (GL_DEPTH_TEST);

  glDepthFunc (GL_LESS);

  glShadeModel (GL_SMOOTH);
  GLfloat ambient[4] = { 1, 1, 1, 1 };
  glEnable (GL_LIGHTING);
  glEnable (GL_COLOR_MATERIAL);
  glLightModelfv (GL_LIGHT_MODEL_AMBIENT, ambient);

  /* Loop until done. */
  start_time = SDL_GetTicks ();
  frames = 0;
  while (!done)
    {
      GLenum gl_error;
      char *sdl_error;
      SDL_Event event;

      /* Do our drawing, too. */
      glClearColor (0.0, 0.0, 0.0, 1.0);
      glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

#if 0
      static GLfloat ry;
      ry += 0.03;
      v.d.x = cos (ry);
      v.d.z = sin (ry);
#endif

      draw_context c;
      v.draw (c);

      SDL_GL_SwapBuffers ();

      /* Check for error conditions. */
      gl_error = glGetError ();

      if (gl_error != GL_NO_ERROR)
        fprintf (stderr, "testgl: OpenGL error: %d\n", gl_error);

      sdl_error = SDL_GetError ();

      if (sdl_error[0] != '\0')
        {
          fprintf (stderr, "testgl: SDL error '%s'\n", sdl_error);
          SDL_ClearError ();
        }

      /* Allow the user to see what's happening */
      SDL_Delay (20);

      /* Check if there's a pending event. */
      while (SDL_PollEvent (&event))
        {
          done = HandleEvent (&event);
        }
      ++frames;
    }

  /* Print out the frames per second */
  this_time = SDL_GetTicks ();
  if (this_time != start_time)
    {
      printf ("%2.2f FPS\n",
              ((float) frames / (this_time - start_time)) * 1000.0);
    }

  if (global_image)
    {
      SDL_FreeSurface (global_image);
      global_image = NULL;
    }
  if (global_texture)
    {
      glDeleteTextures (1, &global_texture);
      global_texture = 0;
    }

  /* Destroy our GL context, etc. */
  SDL_Quit ();
  return (0);
}

int
main (int argc, char *argv[])
{
  int i, logo;
  int numtests;
  int bpp = 0;
  int slowly;
  float gamma = 0.0;
  int noframe = 0;
  int fsaa = 0;

  // load a entity
  txtprt_parser p;
  entity_base *e;
  try {
     e = p.read ("test.blasc");
  } catch (txtprt_i_exception & e) {
     cout << "ERR: " << e.msg << endl;
  }
  world.add (e);

  logo = 0;
  slowly = 0;
  numtests = 1;
  for (i = 1; argv[i]; ++i)
    {
      if (strcmp (argv[i], "-twice") == 0)
        {
          ++numtests;
        }
      if (strcmp (argv[i], "-slow") == 0)
        {
          slowly = 1;
        }
      if (strcmp (argv[i], "-bpp") == 0)
        {
          bpp = atoi (argv[++i]);
        }
      if (strcmp (argv[i], "-gamma") == 0)
        {
          gamma = (float) atof (argv[++i]);
        }
      if (strcmp (argv[i], "-noframe") == 0)
        {
          noframe = 1;
        }
      if (strcmp (argv[i], "-fsaa") == 0)
        {
          ++fsaa;
        }
      if (strncmp (argv[i], "-h", 2) == 0)
        {
          printf
            ("Usage: %s [-twice] [-logo] [-slow] [-bpp n] [-gamma n] [-noframe] [-fsaa]\n",
             argv[0]);
          exit (0);
        }
    }
  for (i = 0; i < numtests; ++i)
    {
      RunGLTest (argc, argv, logo, slowly, bpp, gamma, noframe, fsaa);
    }
  return 0;
}
Revision:	1.5
Committed:	Sun Oct 3 02:38:33 2004 UTC (19 years, 8 months ago) by root
Content type:	text/plain
Branch:	MAIN
Changes since 1.4:	+13 -22 lines
Log Message:	* empty log message *
#	Content
1	#include <stdlib.h>
2	#include <stdio.h>
3	#include <string.h>
4	#include <math.h>
5
6	#include "SDL.h"
7
8	#include "SDL_opengl.h"
9
10	/* Undefine this if you want a flat cube instead of a rainbow cube */
11	#define SHADED_CUBE
12
13	/* Define this to be the name of the logo image to use with -logo */
14	#define LOGO_FILE "icon.bmp"
15
16	static SDL_Surface *global_image = NULL;
17	static GLuint global_texture = 0;
18
19	#include "entity.h"
20
21	#include "txtprt_import.h"
22
23	/**********************************************************************/
24
25	void
26	HotKey_ToggleFullScreen (void)
27	{
28	SDL_Surface *screen;
29
30	screen = SDL_GetVideoSurface ();
31	if (SDL_WM_ToggleFullScreen (screen))
32	printf ("Toggled fullscreen mode - now %s\n",
33	(screen->flags & SDL_FULLSCREEN) ? "fullscreen" : "windowed");
34	else
35	printf ("Unable to toggle fullscreen mode\n");
36	}
37
38	void
39	HotKey_ToggleGrab (void)
40	{
41	SDL_GrabMode mode;
42
43	printf ("Ctrl-G: toggling input grab!\n");
44	mode = SDL_WM_GrabInput (SDL_GRAB_QUERY);
45	if (mode == SDL_GRAB_ON)
46	printf ("Grab was on\n");
47	else
48	printf ("Grab was off\n");
49
50	mode = SDL_WM_GrabInput (mode ? SDL_GRAB_OFF : SDL_GRAB_ON);
51	if (mode == SDL_GRAB_ON)
52	printf ("Grab is now on\n");
53	else
54	printf ("Grab is now off\n");
55	}
56
57	void
58	HotKey_Iconify (void)
59	{
60	printf ("Ctrl-Z: iconifying window!\n");
61	SDL_WM_IconifyWindow ();
62	}
63
64	int
65	HandleEvent (SDL_Event * event)
66	{
67	int done;
68
69	done = 0;
70	switch (event->type)
71	{
72	case SDL_ACTIVEEVENT:
73	/* See what happened */
74	printf ("app %s ", event->active.gain ? "gained" : "lost");
75	if (event->active.state & SDL_APPACTIVE)
76	{
77	printf ("active ");
78	}
79	else if (event->active.state & SDL_APPMOUSEFOCUS)
80	{
81	printf ("mouse ");
82	}
83	else if (event->active.state & SDL_APPINPUTFOCUS)
84	{
85	printf ("input ");
86	}
87
88	printf ("focus\n");
89	break;
90
91	case SDL_KEYDOWN:
92	if (event->key.keysym.sym == SDLK_ESCAPE)
93	{
94	done = 1;
95	}
96
97	if ((event->key.keysym.sym == SDLK_g) &&
98	(event->key.keysym.mod & KMOD_CTRL))
99	{
100	HotKey_ToggleGrab ();
101	}
102
103	if ((event->key.keysym.sym == SDLK_z) &&
104	(event->key.keysym.mod & KMOD_CTRL))
105	{
106	HotKey_Iconify ();
107	}
108
109	if ((event->key.keysym.sym == SDLK_RETURN) &&
110	(event->key.keysym.mod & KMOD_ALT))
111	{
112	HotKey_ToggleFullScreen ();
113	}
114
115	printf ("key '%s' pressed\n", SDL_GetKeyName (event->key.keysym.sym));
116	break;
117
118	case SDL_QUIT:
119	done = 1;
120	break;
121	}
122
123	return (done);
124	}
125
126	void
127	SDL_GL_Enter2DMode ()
128	{
129	SDL_Surface *screen = SDL_GetVideoSurface ();
130
131	/* Note, there may be other things you need to change,
132	depending on how you have your OpenGL state set up.
133	*/
134	glPushAttrib (GL_ENABLE_BIT);
135	glDisable (GL_DEPTH_TEST);
136	glDisable (GL_CULL_FACE);
137	glEnable (GL_TEXTURE_2D);
138
139	/* This allows alpha blending of 2D textures with the scene */
140	glEnable (GL_BLEND);
141	glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
142
143	glViewport (0, 0, screen->w, screen->h);
144
145	glMatrixMode (GL_PROJECTION);
146	glPushMatrix ();
147	glLoadIdentity ();
148
149	glOrtho (0.0, (GLdouble) screen->w, (GLdouble) screen->h, 0.0, 0.0, 1.0);
150
151	glMatrixMode (GL_MODELVIEW);
152	glPushMatrix ();
153	glLoadIdentity ();
154
155	glTexEnvf (GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_DECAL);
156	}
157
158	void
159	SDL_GL_Leave2DMode ()
160	{
161	glMatrixMode (GL_MODELVIEW);
162	glPopMatrix ();
163
164	glMatrixMode (GL_PROJECTION);
165	glPopMatrix ();
166
167	glPopAttrib ();
168	}
169
170	/* Quick utility function for texture creation */
171	static int
172	power_of_two (int input)
173	{
174	int value = 1;
175
176	while (value < input)
177	{
178	value <<= 1;
179	}
180	return value;
181	}
182
183	GLuint
184	SDL_GL_LoadTexture (SDL_Surface * surface, GLfloat * texcoord)
185	{
186	GLuint texture;
187	int w, h;
188	SDL_Surface *image;
189	SDL_Rect area;
190	Uint32 saved_flags;
191	Uint8 saved_alpha;
192
193	/* Use the surface width and height expanded to powers of 2 */
194	w = power_of_two (surface->w);
195	h = power_of_two (surface->h);
196	texcoord[0] = 0.0f; /* Min X */
197	texcoord[1] = 0.0f; /* Min Y */
198	texcoord[2] = (GLfloat) surface->w / w; /* Max X */
199	texcoord[3] = (GLfloat) surface->h / h; /* Max Y */
200
201	image = SDL_CreateRGBSurface (SDL_SWSURFACE, w, h, 32,
202	#if SDL_BYTEORDER == SDL_LIL_ENDIAN /* OpenGL RGBA masks */
203	0x000000FF, 0x0000FF00, 0x00FF0000, 0xFF000000
204	#else
205	0xFF000000, 0x00FF0000, 0x0000FF00, 0x000000FF
206	#endif
207	);
208	if (image == NULL)
209	{
210	return 0;
211	}
212
213	/* Save the alpha blending attributes */
214	saved_flags = surface->flags & (SDL_SRCALPHA \| SDL_RLEACCELOK);
215	saved_alpha = surface->format->alpha;
216	if ((saved_flags & SDL_SRCALPHA) == SDL_SRCALPHA)
217	{
218	SDL_SetAlpha (surface, 0, 0);
219	}
220
221	/* Copy the surface into the GL texture image */
222	area.x = 0;
223	area.y = 0;
224	area.w = surface->w;
225	area.h = surface->h;
226	SDL_BlitSurface (surface, &area, image, &area);
227
228	/* Restore the alpha blending attributes */
229	if ((saved_flags & SDL_SRCALPHA) == SDL_SRCALPHA)
230	{
231	SDL_SetAlpha (surface, saved_flags, saved_alpha);
232	}
233
234	/* Create an OpenGL texture for the image */
235	glGenTextures (1, &texture);
236	glBindTexture (GL_TEXTURE_2D, texture);
237	glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
238	glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
239	glTexImage2D (GL_TEXTURE_2D,
240	0,
241	GL_RGBA, w, h, 0, GL_RGBA, GL_UNSIGNED_BYTE, image->pixels);
242	SDL_FreeSurface (image); /* No longer needed */
243
244	return texture;
245	}
246
247	int
248	RunGLTest (int argc, char *argv[],
249	int logo, int slowly, int bpp, float gamma, int noframe, int fsaa)
250	{
251	int i;
252	int rgb_size[3];
253	int w = 640;
254	int h = 480;
255	int done = 0;
256	int frames;
257	Uint32 start_time, this_time;
258	Uint32 video_flags;
259	int value;
260
261	if (SDL_Init (SDL_INIT_VIDEO) < 0)
262	{
263	fprintf (stderr, "Couldn't initialize SDL: %s\n", SDL_GetError ());
264	exit (1);
265	}
266
267	/* See if we should detect the display depth */
268	if (bpp == 0)
269	{
270	if (SDL_GetVideoInfo ()->vfmt->BitsPerPixel <= 8)
271	bpp = 8;
272	else
273	bpp = 16; /* More doesn't seem to work */
274	}
275
276	video_flags = SDL_OPENGL;
277
278	for (i = 1; argv[i]; ++i)
279	if (strcmp (argv[1], "-fullscreen") == 0)
280	video_flags \|= SDL_FULLSCREEN;
281
282	if (noframe)
283	video_flags \|= SDL_NOFRAME;
284
285	/* Initialize the display */
286	switch (bpp)
287	{
288	case 8:
289	rgb_size[0] = 3;
290	rgb_size[1] = 3;
291	rgb_size[2] = 2;
292	break;
293
294	case 15:
295	case 16:
296	rgb_size[0] = 5;
297	rgb_size[1] = 5;
298	rgb_size[2] = 5;
299	break;
300
301	default:
302	rgb_size[0] = 8;
303	rgb_size[1] = 8;
304	rgb_size[2] = 8;
305	break;
306	}
307	SDL_GL_SetAttribute (SDL_GL_RED_SIZE, rgb_size[0]);
308	SDL_GL_SetAttribute (SDL_GL_GREEN_SIZE, rgb_size[1]);
309	SDL_GL_SetAttribute (SDL_GL_BLUE_SIZE, rgb_size[2]);
310	SDL_GL_SetAttribute (SDL_GL_DEPTH_SIZE, 16);
311	SDL_GL_SetAttribute (SDL_GL_DOUBLEBUFFER, 1);
312
313	if (fsaa)
314	{
315	SDL_GL_SetAttribute (SDL_GL_MULTISAMPLEBUFFERS, 1);
316	SDL_GL_SetAttribute (SDL_GL_MULTISAMPLESAMPLES, fsaa);
317	}
318
319	if (SDL_SetVideoMode (w, h, bpp, video_flags) == NULL)
320	{
321	fprintf (stderr, "Couldn't set GL mode: %s\n", SDL_GetError ());
322	SDL_Quit ();
323	exit (1);
324	}
325
326	printf ("Screen BPP: %d\n", SDL_GetVideoSurface ()->format->BitsPerPixel);
327	printf ("\n");
328	printf ("Vendor : %s\n", glGetString (GL_VENDOR));
329	printf ("Renderer : %s\n", glGetString (GL_RENDERER));
330	printf ("Version : %s\n", glGetString (GL_VERSION));
331	printf ("Extensions : %s\n", glGetString (GL_EXTENSIONS));
332	printf ("\n");
333
334	SDL_GL_GetAttribute (SDL_GL_RED_SIZE, &value);
335	printf ("SDL_GL_RED_SIZE: requested %d, got %d\n", rgb_size[0], value);
336	SDL_GL_GetAttribute (SDL_GL_GREEN_SIZE, &value);
337	printf ("SDL_GL_GREEN_SIZE: requested %d, got %d\n", rgb_size[1], value);
338	SDL_GL_GetAttribute (SDL_GL_BLUE_SIZE, &value);
339	printf ("SDL_GL_BLUE_SIZE: requested %d, got %d\n", rgb_size[2], value);
340	SDL_GL_GetAttribute (SDL_GL_DEPTH_SIZE, &value);
341	printf ("SDL_GL_DEPTH_SIZE: requested %d, got %d\n", bpp, value);
342	SDL_GL_GetAttribute (SDL_GL_DOUBLEBUFFER, &value);
343	printf ("SDL_GL_DOUBLEBUFFER: requested 1, got %d\n", value);
344
345	if (fsaa)
346	{
347	SDL_GL_GetAttribute (SDL_GL_MULTISAMPLEBUFFERS, &value);
348	printf ("SDL_GL_MULTISAMPLEBUFFERS: requested 1, got %d\n", value);
349	SDL_GL_GetAttribute (SDL_GL_MULTISAMPLESAMPLES, &value);
350	printf ("SDL_GL_MULTISAMPLESAMPLES: requested %d, got %d\n", fsaa,
351	value);
352	}
353
354	/* Set the window manager title bar */
355	SDL_WM_SetCaption ("SDL GL test", "testgl");
356
357	/* Set the gamma for the window */
358	if (gamma != 0.0)
359	SDL_SetGamma (gamma, gamma, gamma);
360
361	view v;
362	v.p = point (0, 0, 0);
363	v.d = vec3 (0, 0, -1);
364	v.u = vec3 (0, 1, 0);
365	v.w = w; v.h = h;
366	v.fov = 90;
367
368	glMatrixMode (GL_MODELVIEW);
369	glLoadIdentity ();
370
371	glEnable (GL_DEPTH_TEST);
372
373	glDepthFunc (GL_LESS);
374
375	glShadeModel (GL_SMOOTH);
376	GLfloat ambient[4] = { 1, 1, 1, 1 };
377	glEnable (GL_LIGHTING);
378	glEnable (GL_COLOR_MATERIAL);
379	glLightModelfv (GL_LIGHT_MODEL_AMBIENT, ambient);
380
381	/* Loop until done. */
382	start_time = SDL_GetTicks ();
383	frames = 0;
384	while (!done)
385	{
386	GLenum gl_error;
387	char *sdl_error;
388	SDL_Event event;
389
390	/* Do our drawing, too. */
391	glClearColor (0.0, 0.0, 0.0, 1.0);
392	glClear (GL_COLOR_BUFFER_BIT \| GL_DEPTH_BUFFER_BIT);
393
394	#if 0
395	static GLfloat ry;
396	ry += 0.03;
397	v.d.x = cos (ry);
398	v.d.z = sin (ry);
399	#endif
400
401	draw_context c;
402	v.draw (c);
403
404	SDL_GL_SwapBuffers ();
405
406	/* Check for error conditions. */
407	gl_error = glGetError ();
408
409	if (gl_error != GL_NO_ERROR)
410	fprintf (stderr, "testgl: OpenGL error: %d\n", gl_error);
411
412	sdl_error = SDL_GetError ();
413
414	if (sdl_error[0] != '\0')
415	{
416	fprintf (stderr, "testgl: SDL error '%s'\n", sdl_error);
417	SDL_ClearError ();
418	}
419
420	/* Allow the user to see what's happening */
421	SDL_Delay (20);
422
423	/* Check if there's a pending event. */
424	while (SDL_PollEvent (&event))
425	{
426	done = HandleEvent (&event);
427	}
428	++frames;
429	}
430
431	/* Print out the frames per second */
432	this_time = SDL_GetTicks ();
433	if (this_time != start_time)
434	{
435	printf ("%2.2f FPS\n",
436	((float) frames / (this_time - start_time)) * 1000.0);
437	}
438
439	if (global_image)
440	{
441	SDL_FreeSurface (global_image);
442	global_image = NULL;
443	}
444	if (global_texture)
445	{
446	glDeleteTextures (1, &global_texture);
447	global_texture = 0;
448	}
449
450	/* Destroy our GL context, etc. */
451	SDL_Quit ();
452	return (0);
453	}
454
455	int
456	main (int argc, char *argv[])
457	{
458	int i, logo;
459	int numtests;
460	int bpp = 0;
461	int slowly;
462	float gamma = 0.0;
463	int noframe = 0;
464	int fsaa = 0;
465
466	// load a entity
467	txtprt_parser p;
468	entity_base *e;
469	try {
470	e = p.read ("test.blasc");
471	} catch (txtprt_i_exception & e) {
472	cout << "ERR: " << e.msg << endl;
473	}
474	world.add (e);
475
476	logo = 0;
477	slowly = 0;
478	numtests = 1;
479	for (i = 1; argv[i]; ++i)
480	{
481	if (strcmp (argv[i], "-twice") == 0)
482	{
483	++numtests;
484	}
485	if (strcmp (argv[i], "-slow") == 0)
486	{
487	slowly = 1;
488	}
489	if (strcmp (argv[i], "-bpp") == 0)
490	{
491	bpp = atoi (argv[++i]);
492	}
493	if (strcmp (argv[i], "-gamma") == 0)
494	{
495	gamma = (float) atof (argv[++i]);
496	}
497	if (strcmp (argv[i], "-noframe") == 0)
498	{
499	noframe = 1;
500	}
501	if (strcmp (argv[i], "-fsaa") == 0)
502	{
503	++fsaa;
504	}
505	if (strncmp (argv[i], "-h", 2) == 0)
506	{
507	printf
508	("Usage: %s [-twice] [-logo] [-slow] [-bpp n] [-gamma n] [-noframe] [-fsaa]\n",
509	argv[0]);
510	exit (0);
511	}
512	}
513	for (i = 0; i < numtests; ++i)
514	{
515	RunGLTest (argc, argv, logo, slowly, bpp, gamma, noframe, fsaa);
516	}
517	return 0;
518	}