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);

      static GLfloat ry;
      ry += 0.1;
      v.d.x = cos (ry);
      v.d.z = sin (ry);

      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;
  try {
     entity *e = p.read ("test.blasc");
  } catch (txtprt_i_exception & e) {
     cout << "ERR: " << e.msg << endl;
  }
  // now please draw my entity ;)

  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:	1.4
Committed:	Sun Oct 3 02:19:07 2004 UTC (19 years, 8 months ago) by root
Content type:	text/plain
Branch:	MAIN
Changes since 1.3:	+11 -0 lines
Log Message:	Added txtprt exporter and libgender importer.
#	User	Rev	Content
1	root	1.1	#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	root	1.2	#include "entity.h"
20
21	root	1.4	#include "txtprt_import.h"
22
23	root	1.1	/**********************************************************************/
24
25			void
26			HotKey_ToggleFullScreen (void)
27			{
28			SDL_Surface *screen;
29
30			screen = SDL_GetVideoSurface ();
31			if (SDL_WM_ToggleFullScreen (screen))
32			{
33			printf ("Toggled fullscreen mode - now %s\n",
34			(screen->flags & SDL_FULLSCREEN) ? "fullscreen" : "windowed");
35			}
36			else
37			{
38			printf ("Unable to toggle fullscreen mode\n");
39			}
40			}
41
42			void
43			HotKey_ToggleGrab (void)
44			{
45			SDL_GrabMode mode;
46
47			printf ("Ctrl-G: toggling input grab!\n");
48			mode = SDL_WM_GrabInput (SDL_GRAB_QUERY);
49			if (mode == SDL_GRAB_ON)
50			{
51			printf ("Grab was on\n");
52			}
53			else
54			{
55			printf ("Grab was off\n");
56			}
57
58			mode = SDL_WM_GrabInput (mode ? SDL_GRAB_OFF : SDL_GRAB_ON);
59			if (mode == SDL_GRAB_ON)
60			{
61			printf ("Grab is now on\n");
62			}
63			else
64			{
65			printf ("Grab is now off\n");
66			}
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_ESCAPE)
105			{
106			done = 1;
107			}
108
109			if ((event->key.keysym.sym == SDLK_g) &&
110			(event->key.keysym.mod & KMOD_CTRL))
111			{
112			HotKey_ToggleGrab ();
113			}
114
115			if ((event->key.keysym.sym == SDLK_z) &&
116			(event->key.keysym.mod & KMOD_CTRL))
117			{
118			HotKey_Iconify ();
119			}
120
121			if ((event->key.keysym.sym == SDLK_RETURN) &&
122			(event->key.keysym.mod & KMOD_ALT))
123			{
124			HotKey_ToggleFullScreen ();
125			}
126
127			printf ("key '%s' pressed\n", SDL_GetKeyName (event->key.keysym.sym));
128			break;
129
130			case SDL_QUIT:
131			done = 1;
132			break;
133			}
134
135			return (done);
136			}
137
138			void
139			SDL_GL_Enter2DMode ()
140			{
141			SDL_Surface *screen = SDL_GetVideoSurface ();
142
143			/* Note, there may be other things you need to change,
144			depending on how you have your OpenGL state set up.
145			*/
146			glPushAttrib (GL_ENABLE_BIT);
147			glDisable (GL_DEPTH_TEST);
148			glDisable (GL_CULL_FACE);
149			glEnable (GL_TEXTURE_2D);
150
151			/* This allows alpha blending of 2D textures with the scene */
152			glEnable (GL_BLEND);
153			glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
154
155			glViewport (0, 0, screen->w, screen->h);
156
157			glMatrixMode (GL_PROJECTION);
158			glPushMatrix ();
159			glLoadIdentity ();
160
161			glOrtho (0.0, (GLdouble) screen->w, (GLdouble) screen->h, 0.0, 0.0, 1.0);
162
163			glMatrixMode (GL_MODELVIEW);
164			glPushMatrix ();
165			glLoadIdentity ();
166
167			glTexEnvf (GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_DECAL);
168			}
169
170			void
171			SDL_GL_Leave2DMode ()
172			{
173			glMatrixMode (GL_MODELVIEW);
174			glPopMatrix ();
175
176			glMatrixMode (GL_PROJECTION);
177			glPopMatrix ();
178
179			glPopAttrib ();
180			}
181
182			/* Quick utility function for texture creation */
183			static int
184			power_of_two (int input)
185			{
186			int value = 1;
187
188			while (value < input)
189			{
190			value <<= 1;
191			}
192			return value;
193			}
194
195			GLuint
196			SDL_GL_LoadTexture (SDL_Surface * surface, GLfloat * texcoord)
197			{
198			GLuint texture;
199			int w, h;
200			SDL_Surface *image;
201			SDL_Rect area;
202			Uint32 saved_flags;
203			Uint8 saved_alpha;
204
205			/* Use the surface width and height expanded to powers of 2 */
206			w = power_of_two (surface->w);
207			h = power_of_two (surface->h);
208			texcoord[0] = 0.0f; /* Min X */
209			texcoord[1] = 0.0f; /* Min Y */
210			texcoord[2] = (GLfloat) surface->w / w; /* Max X */
211			texcoord[3] = (GLfloat) surface->h / h; /* Max Y */
212
213			image = SDL_CreateRGBSurface (SDL_SWSURFACE, w, h, 32,
214			#if SDL_BYTEORDER == SDL_LIL_ENDIAN /* OpenGL RGBA masks */
215			0x000000FF, 0x0000FF00, 0x00FF0000, 0xFF000000
216			#else
217			0xFF000000, 0x00FF0000, 0x0000FF00, 0x000000FF
218			#endif
219			);
220			if (image == NULL)
221			{
222			return 0;
223			}
224
225			/* Save the alpha blending attributes */
226			saved_flags = surface->flags & (SDL_SRCALPHA \| SDL_RLEACCELOK);
227			saved_alpha = surface->format->alpha;
228			if ((saved_flags & SDL_SRCALPHA) == SDL_SRCALPHA)
229			{
230			SDL_SetAlpha (surface, 0, 0);
231			}
232
233			/* Copy the surface into the GL texture image */
234			area.x = 0;
235			area.y = 0;
236			area.w = surface->w;
237			area.h = surface->h;
238			SDL_BlitSurface (surface, &area, image, &area);
239
240			/* Restore the alpha blending attributes */
241			if ((saved_flags & SDL_SRCALPHA) == SDL_SRCALPHA)
242			{
243			SDL_SetAlpha (surface, saved_flags, saved_alpha);
244			}
245
246			/* Create an OpenGL texture for the image */
247			glGenTextures (1, &texture);
248			glBindTexture (GL_TEXTURE_2D, texture);
249			glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
250			glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
251			glTexImage2D (GL_TEXTURE_2D,
252			0,
253			GL_RGBA, w, h, 0, GL_RGBA, GL_UNSIGNED_BYTE, image->pixels);
254			SDL_FreeSurface (image); /* No longer needed */
255
256			return texture;
257			}
258
259			int
260			RunGLTest (int argc, char *argv[],
261			int logo, int slowly, int bpp, float gamma, int noframe, int fsaa)
262			{
263			int i;
264			int rgb_size[3];
265			int w = 640;
266			int h = 480;
267			int done = 0;
268			int frames;
269			Uint32 start_time, this_time;
270	root	1.2	Uint32 video_flags;
271	root	1.1	int value;
272
273			if (SDL_Init (SDL_INIT_VIDEO) < 0)
274			{
275			fprintf (stderr, "Couldn't initialize SDL: %s\n", SDL_GetError ());
276			exit (1);
277			}
278
279			/* See if we should detect the display depth */
280			if (bpp == 0)
281			{
282			if (SDL_GetVideoInfo ()->vfmt->BitsPerPixel <= 8)
283	root	1.3	bpp = 8;
284	root	1.1	else
285	root	1.3	bpp = 16; /* More doesn't seem to work */
286	root	1.1	}
287
288	root	1.2	video_flags = SDL_OPENGL;
289
290	root	1.1	for (i = 1; argv[i]; ++i)
291	root	1.3	if (strcmp (argv[1], "-fullscreen") == 0)
292			video_flags \|= SDL_FULLSCREEN;
293	root	1.1
294			if (noframe)
295	root	1.3	video_flags \|= SDL_NOFRAME;
296	root	1.1
297			/* Initialize the display */
298			switch (bpp)
299			{
300			case 8:
301			rgb_size[0] = 3;
302			rgb_size[1] = 3;
303			rgb_size[2] = 2;
304			break;
305	root	1.3
306	root	1.1	case 15:
307			case 16:
308			rgb_size[0] = 5;
309			rgb_size[1] = 5;
310			rgb_size[2] = 5;
311			break;
312	root	1.3
313	root	1.1	default:
314			rgb_size[0] = 8;
315			rgb_size[1] = 8;
316			rgb_size[2] = 8;
317			break;
318			}
319			SDL_GL_SetAttribute (SDL_GL_RED_SIZE, rgb_size[0]);
320			SDL_GL_SetAttribute (SDL_GL_GREEN_SIZE, rgb_size[1]);
321			SDL_GL_SetAttribute (SDL_GL_BLUE_SIZE, rgb_size[2]);
322			SDL_GL_SetAttribute (SDL_GL_DEPTH_SIZE, 16);
323			SDL_GL_SetAttribute (SDL_GL_DOUBLEBUFFER, 1);
324	root	1.3
325	root	1.1	if (fsaa)
326			{
327			SDL_GL_SetAttribute (SDL_GL_MULTISAMPLEBUFFERS, 1);
328			SDL_GL_SetAttribute (SDL_GL_MULTISAMPLESAMPLES, fsaa);
329			}
330	root	1.3
331	root	1.1	if (SDL_SetVideoMode (w, h, bpp, video_flags) == NULL)
332			{
333			fprintf (stderr, "Couldn't set GL mode: %s\n", SDL_GetError ());
334			SDL_Quit ();
335			exit (1);
336			}
337
338			printf ("Screen BPP: %d\n", SDL_GetVideoSurface ()->format->BitsPerPixel);
339			printf ("\n");
340			printf ("Vendor : %s\n", glGetString (GL_VENDOR));
341			printf ("Renderer : %s\n", glGetString (GL_RENDERER));
342			printf ("Version : %s\n", glGetString (GL_VERSION));
343			printf ("Extensions : %s\n", glGetString (GL_EXTENSIONS));
344			printf ("\n");
345
346			SDL_GL_GetAttribute (SDL_GL_RED_SIZE, &value);
347			printf ("SDL_GL_RED_SIZE: requested %d, got %d\n", rgb_size[0], value);
348			SDL_GL_GetAttribute (SDL_GL_GREEN_SIZE, &value);
349			printf ("SDL_GL_GREEN_SIZE: requested %d, got %d\n", rgb_size[1], value);
350			SDL_GL_GetAttribute (SDL_GL_BLUE_SIZE, &value);
351			printf ("SDL_GL_BLUE_SIZE: requested %d, got %d\n", rgb_size[2], value);
352			SDL_GL_GetAttribute (SDL_GL_DEPTH_SIZE, &value);
353			printf ("SDL_GL_DEPTH_SIZE: requested %d, got %d\n", bpp, value);
354			SDL_GL_GetAttribute (SDL_GL_DOUBLEBUFFER, &value);
355			printf ("SDL_GL_DOUBLEBUFFER: requested 1, got %d\n", value);
356	root	1.3
357	root	1.1	if (fsaa)
358			{
359			SDL_GL_GetAttribute (SDL_GL_MULTISAMPLEBUFFERS, &value);
360			printf ("SDL_GL_MULTISAMPLEBUFFERS: requested 1, got %d\n", value);
361			SDL_GL_GetAttribute (SDL_GL_MULTISAMPLESAMPLES, &value);
362			printf ("SDL_GL_MULTISAMPLESAMPLES: requested %d, got %d\n", fsaa,
363			value);
364			}
365
366			/* Set the window manager title bar */
367			SDL_WM_SetCaption ("SDL GL test", "testgl");
368
369			/* Set the gamma for the window */
370			if (gamma != 0.0)
371	root	1.3	SDL_SetGamma (gamma, gamma, gamma);
372	root	1.1
373	root	1.3	view v;
374			v.p = point (0, 0, 0);
375			v.d = vec3 (0, 0, -1);
376			v.u = vec3 (0, 1, 0);
377			v.w = w; v.h = h;
378			v.fov = 90;
379	root	1.1
380			glMatrixMode (GL_MODELVIEW);
381			glLoadIdentity ();
382
383			glEnable (GL_DEPTH_TEST);
384
385			glDepthFunc (GL_LESS);
386
387			glShadeModel (GL_SMOOTH);
388	root	1.3	GLfloat ambient[4] = { 1, 1, 1, 1 };
389			glEnable (GL_LIGHTING);
390			glEnable (GL_COLOR_MATERIAL);
391			glLightModelfv (GL_LIGHT_MODEL_AMBIENT, ambient);
392	root	1.1
393			/* Loop until done. */
394			start_time = SDL_GetTicks ();
395			frames = 0;
396			while (!done)
397			{
398			GLenum gl_error;
399			char *sdl_error;
400			SDL_Event event;
401
402			/* Do our drawing, too. */
403			glClearColor (0.0, 0.0, 0.0, 1.0);
404			glClear (GL_COLOR_BUFFER_BIT \| GL_DEPTH_BUFFER_BIT);
405
406	root	1.3	static GLfloat ry;
407			ry += 0.1;
408			v.d.x = cos (ry);
409			v.d.z = sin (ry);
410	root	1.1
411	root	1.3	draw_context c;
412			v.draw (c);
413	root	1.1
414			SDL_GL_SwapBuffers ();
415
416			/* Check for error conditions. */
417			gl_error = glGetError ();
418
419			if (gl_error != GL_NO_ERROR)
420	root	1.3	fprintf (stderr, "testgl: OpenGL error: %d\n", gl_error);
421	root	1.1
422			sdl_error = SDL_GetError ();
423
424			if (sdl_error[0] != '\0')
425			{
426			fprintf (stderr, "testgl: SDL error '%s'\n", sdl_error);
427			SDL_ClearError ();
428			}
429
430			/* Allow the user to see what's happening */
431			SDL_Delay (20);
432
433			/* Check if there's a pending event. */
434			while (SDL_PollEvent (&event))
435			{
436			done = HandleEvent (&event);
437			}
438			++frames;
439			}
440
441			/* Print out the frames per second */
442			this_time = SDL_GetTicks ();
443			if (this_time != start_time)
444			{
445			printf ("%2.2f FPS\n",
446			((float) frames / (this_time - start_time)) * 1000.0);
447			}
448
449			if (global_image)
450			{
451			SDL_FreeSurface (global_image);
452			global_image = NULL;
453			}
454			if (global_texture)
455			{
456			glDeleteTextures (1, &global_texture);
457			global_texture = 0;
458			}
459
460			/* Destroy our GL context, etc. */
461			SDL_Quit ();
462			return (0);
463			}
464
465			int
466			main (int argc, char *argv[])
467			{
468			int i, logo;
469			int numtests;
470			int bpp = 0;
471			int slowly;
472			float gamma = 0.0;
473			int noframe = 0;
474			int fsaa = 0;
475	root	1.4
476			// load a entity
477			txtprt_parser p;
478			try {
479			entity *e = p.read ("test.blasc");
480			} catch (txtprt_i_exception & e) {
481			cout << "ERR: " << e.msg << endl;
482			}
483			// now please draw my entity ;)
484	root	1.1
485			logo = 0;
486			slowly = 0;
487			numtests = 1;
488			for (i = 1; argv[i]; ++i)
489			{
490			if (strcmp (argv[i], "-twice") == 0)
491			{
492			++numtests;
493			}
494			if (strcmp (argv[i], "-slow") == 0)
495			{
496			slowly = 1;
497			}
498			if (strcmp (argv[i], "-bpp") == 0)
499			{
500			bpp = atoi (argv[++i]);
501			}
502			if (strcmp (argv[i], "-gamma") == 0)
503			{
504			gamma = (float) atof (argv[++i]);
505			}
506			if (strcmp (argv[i], "-noframe") == 0)
507			{
508			noframe = 1;
509			}
510			if (strcmp (argv[i], "-fsaa") == 0)
511			{
512			++fsaa;
513			}
514			if (strncmp (argv[i], "-h", 2) == 0)
515			{
516			printf
517			("Usage: %s [-twice] [-logo] [-slow] [-bpp n] [-gamma n] [-noframe] [-fsaa]\n",
518			argv[0]);
519			exit (0);
520			}
521			}
522			for (i = 0; i < numtests; ++i)
523			{
524			RunGLTest (argc, argv, logo, slowly, bpp, gamma, noframe, fsaa);
525			}
526			return 0;
527			}