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"

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

view camera;
vec3 camera_velocity;

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;

#define VELOCITY 10
    case SDL_KEYDOWN:
      if (event->key.keysym.sym == SDLK_UP)    camera_velocity.z -= VELOCITY;
      if (event->key.keysym.sym == SDLK_DOWN)  camera_velocity.z += VELOCITY;
      if (event->key.keysym.sym == SDLK_LEFT)  camera_velocity.x -= VELOCITY;
      if (event->key.keysym.sym == SDLK_RIGHT) camera_velocity.x += VELOCITY;

      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 ();

      break;

    case SDL_KEYUP:
      if (event->key.keysym.sym == SDLK_UP)    camera_velocity.z += VELOCITY;
      if (event->key.keysym.sym == SDLK_DOWN)  camera_velocity.z -= VELOCITY;
      if (event->key.keysym.sym == SDLK_LEFT)  camera_velocity.x += VELOCITY;
      if (event->key.keysym.sym == SDLK_RIGHT) camera_velocity.x -= VELOCITY;
      break;

    case SDL_QUIT:
      done = 1;
      break;
    }

  return (done);
}

/* 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 ("libgender rendering test", "gendertest");

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

  // load a entity
  for (int i = 0; i < 7; i++)
    {
      txtprt_parser p;
      entity_transform *f = new entity_transform;
      entity *e;
      try
      {
        e = p.read ("test.blasc");
      } catch (txtprt_i_exception & e)
      {
        cout << "ERR: " << e.msg << endl;
      }
      f->set (e);
      f->m.translate (vec3 (0, -1, -i*5));
      f->show ();
    }

  camera.orig.x = camera.orig.y = camera.orig.z = 0;
  camera.p = point (0, 0, 10);
  camera.d = vec3 (0, 0, -1);
  camera.u = vec3 (0, 1, 0);
  camera.w = w; camera.h = h;
  camera.fov = 90;

  glMatrixMode (GL_MODELVIEW);
  glLoadIdentity ();

  glEnable (GL_CULL_FACE);
  glEnable (GL_DEPTH_TEST);
  glShadeModel (GL_SMOOTH);

  glEnable (GL_LIGHTING);
  //GLfloat lightc[4] = { 1, 0.1, 0.1, 1 };
  //glLightf (GL_LIGHT0, GL_QUADRATIC_ATTENUATION);
  //glLightfv (GL_LIGHT0, GL_DIFFUSE, lightc);
  glEnable (GL_LIGHT0);

  /* Loop until done. */
  start_time = SDL_GetTicks ();
  frames = 0;

  draw_context c (camera);

  while (!done)
    {
      GLenum gl_error;
      char *sdl_error;
      SDL_Event event;

      glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

      camera.p.x += camera_velocity.x * timer.diff;
      camera.p.y += camera_velocity.y * timer.diff;
      camera.p.z += camera_velocity.z * timer.diff;

      GLfloat lightp[4];
      lightp[0] = camera.p.x;
      lightp[1] = camera.p.y;
      lightp[2] = camera.p.z;
      lightp[3] = 1;
      glLightfv (GL_LIGHT0, GL_POSITION, lightp);

#if 0
      static GLfloat ry;
      ry += 0.001;
      camera.d.x = cos (ry);
      camera.d.z = sin (ry);
      //camera.d.y = sin (ry * 0.1);
#endif

      c.mode = draw_context::DEPTH;  
      camera.draw (c);
      c.mode = draw_context::LIGHTED;
      camera.draw (c);

      SDL_GL_SwapBuffers ();
      timer.frame ();

      /* 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;

  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:	1.18
Committed:	Mon Oct 4 07:04:58 2004 UTC (19 years, 8 months ago) by root
Content type:	text/plain
Branch:	MAIN
Changes since 1.17:	+22 -20 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	view camera;
26	vec3 camera_velocity;
27
28	void
29	HotKey_ToggleFullScreen (void)
30	{
31	SDL_Surface *screen;
32
33	screen = SDL_GetVideoSurface ();
34	if (SDL_WM_ToggleFullScreen (screen))
35	printf ("Toggled fullscreen mode - now %s\n",
36	(screen->flags & SDL_FULLSCREEN) ? "fullscreen" : "windowed");
37	else
38	printf ("Unable to toggle fullscreen mode\n");
39	}
40
41	void
42	HotKey_ToggleGrab (void)
43	{
44	SDL_GrabMode mode;
45
46	printf ("Ctrl-G: toggling input grab!\n");
47	mode = SDL_WM_GrabInput (SDL_GRAB_QUERY);
48	if (mode == SDL_GRAB_ON)
49	printf ("Grab was on\n");
50	else
51	printf ("Grab was off\n");
52
53	mode = SDL_WM_GrabInput (mode ? SDL_GRAB_OFF : SDL_GRAB_ON);
54	if (mode == SDL_GRAB_ON)
55	printf ("Grab is now on\n");
56	else
57	printf ("Grab is now off\n");
58	}
59
60	void
61	HotKey_Iconify (void)
62	{
63	printf ("Ctrl-Z: iconifying window!\n");
64	SDL_WM_IconifyWindow ();
65	}
66
67	int
68	HandleEvent (SDL_Event * event)
69	{
70	int done;
71
72	done = 0;
73	switch (event->type)
74	{
75	case SDL_ACTIVEEVENT:
76	/* See what happened */
77	printf ("app %s ", event->active.gain ? "gained" : "lost");
78	if (event->active.state & SDL_APPACTIVE)
79	{
80	printf ("active ");
81	}
82	else if (event->active.state & SDL_APPMOUSEFOCUS)
83	{
84	printf ("mouse ");
85	}
86	else if (event->active.state & SDL_APPINPUTFOCUS)
87	{
88	printf ("input ");
89	}
90
91	printf ("focus\n");
92	break;
93
94	#define VELOCITY 10
95	case SDL_KEYDOWN:
96	if (event->key.keysym.sym == SDLK_UP) camera_velocity.z -= VELOCITY;
97	if (event->key.keysym.sym == SDLK_DOWN) camera_velocity.z += VELOCITY;
98	if (event->key.keysym.sym == SDLK_LEFT) camera_velocity.x -= VELOCITY;
99	if (event->key.keysym.sym == SDLK_RIGHT) camera_velocity.x += VELOCITY;
100
101	if (event->key.keysym.sym == SDLK_ESCAPE)
102	done = 1;
103
104	if ((event->key.keysym.sym == SDLK_g) &&
105	(event->key.keysym.mod & KMOD_CTRL))
106	HotKey_ToggleGrab ();
107
108	if ((event->key.keysym.sym == SDLK_z) &&
109	(event->key.keysym.mod & KMOD_CTRL))
110	HotKey_Iconify ();
111
112	if ((event->key.keysym.sym == SDLK_RETURN) &&
113	(event->key.keysym.mod & KMOD_ALT))
114	HotKey_ToggleFullScreen ();
115
116	break;
117
118	case SDL_KEYUP:
119	if (event->key.keysym.sym == SDLK_UP) camera_velocity.z += VELOCITY;
120	if (event->key.keysym.sym == SDLK_DOWN) camera_velocity.z -= VELOCITY;
121	if (event->key.keysym.sym == SDLK_LEFT) camera_velocity.x += VELOCITY;
122	if (event->key.keysym.sym == SDLK_RIGHT) camera_velocity.x -= VELOCITY;
123	break;
124
125	case SDL_QUIT:
126	done = 1;
127	break;
128	}
129
130	return (done);
131	}
132
133	/* Quick utility function for texture creation */
134	static int
135	power_of_two (int input)
136	{
137	int value = 1;
138
139	while (value < input)
140	{
141	value <<= 1;
142	}
143	return value;
144	}
145
146	GLuint
147	SDL_GL_LoadTexture (SDL_Surface * surface, GLfloat * texcoord)
148	{
149	GLuint texture;
150	int w, h;
151	SDL_Surface *image;
152	SDL_Rect area;
153	Uint32 saved_flags;
154	Uint8 saved_alpha;
155
156	/* Use the surface width and height expanded to powers of 2 */
157	w = power_of_two (surface->w);
158	h = power_of_two (surface->h);
159	texcoord[0] = 0.0f; /* Min X */
160	texcoord[1] = 0.0f; /* Min Y */
161	texcoord[2] = (GLfloat) surface->w / w; /* Max X */
162	texcoord[3] = (GLfloat) surface->h / h; /* Max Y */
163
164	image = SDL_CreateRGBSurface (SDL_SWSURFACE, w, h, 32,
165	#if SDL_BYTEORDER == SDL_LIL_ENDIAN /* OpenGL RGBA masks */
166	0x000000FF, 0x0000FF00, 0x00FF0000, 0xFF000000
167	#else
168	0xFF000000, 0x00FF0000, 0x0000FF00, 0x000000FF
169	#endif
170	);
171	if (image == NULL)
172	{
173	return 0;
174	}
175
176	/* Save the alpha blending attributes */
177	saved_flags = surface->flags & (SDL_SRCALPHA \| SDL_RLEACCELOK);
178	saved_alpha = surface->format->alpha;
179	if ((saved_flags & SDL_SRCALPHA) == SDL_SRCALPHA)
180	{
181	SDL_SetAlpha (surface, 0, 0);
182	}
183
184	/* Copy the surface into the GL texture image */
185	area.x = 0;
186	area.y = 0;
187	area.w = surface->w;
188	area.h = surface->h;
189	SDL_BlitSurface (surface, &area, image, &area);
190
191	/* Restore the alpha blending attributes */
192	if ((saved_flags & SDL_SRCALPHA) == SDL_SRCALPHA)
193	{
194	SDL_SetAlpha (surface, saved_flags, saved_alpha);
195	}
196
197	/* Create an OpenGL texture for the image */
198	glGenTextures (1, &texture);
199	glBindTexture (GL_TEXTURE_2D, texture);
200	glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
201	glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
202	glTexImage2D (GL_TEXTURE_2D,
203	0,
204	GL_RGBA, w, h, 0, GL_RGBA, GL_UNSIGNED_BYTE, image->pixels);
205	SDL_FreeSurface (image); /* No longer needed */
206
207	return texture;
208	}
209
210	int
211	RunGLTest (int argc, char *argv[],
212	int logo, int slowly, int bpp, float gamma, int noframe, int fsaa)
213	{
214	int i;
215	int rgb_size[3];
216	int w = 640;
217	int h = 480;
218	int done = 0;
219	int frames;
220	Uint32 start_time, this_time;
221	Uint32 video_flags;
222	int value;
223
224	if (SDL_Init (SDL_INIT_VIDEO) < 0)
225	{
226	fprintf (stderr, "Couldn't initialize SDL: %s\n", SDL_GetError ());
227	exit (1);
228	}
229
230	/* See if we should detect the display depth */
231	if (bpp == 0)
232	{
233	if (SDL_GetVideoInfo ()->vfmt->BitsPerPixel <= 8)
234	bpp = 8;
235	else
236	bpp = 16; /* More doesn't seem to work */
237	}
238
239	video_flags = SDL_OPENGL;
240
241	for (i = 1; argv[i]; ++i)
242	if (strcmp (argv[1], "-fullscreen") == 0)
243	video_flags \|= SDL_FULLSCREEN;
244
245	if (noframe)
246	video_flags \|= SDL_NOFRAME;
247
248	/* Initialize the display */
249	switch (bpp)
250	{
251	case 8:
252	rgb_size[0] = 3;
253	rgb_size[1] = 3;
254	rgb_size[2] = 2;
255	break;
256
257	case 15:
258	case 16:
259	rgb_size[0] = 5;
260	rgb_size[1] = 5;
261	rgb_size[2] = 5;
262	break;
263
264	default:
265	rgb_size[0] = 8;
266	rgb_size[1] = 8;
267	rgb_size[2] = 8;
268	break;
269	}
270
271	SDL_GL_SetAttribute (SDL_GL_RED_SIZE, rgb_size[0]);
272	SDL_GL_SetAttribute (SDL_GL_GREEN_SIZE, rgb_size[1]);
273	SDL_GL_SetAttribute (SDL_GL_BLUE_SIZE, rgb_size[2]);
274	SDL_GL_SetAttribute (SDL_GL_DEPTH_SIZE, 16);
275	SDL_GL_SetAttribute (SDL_GL_DOUBLEBUFFER, 1);
276
277	if (fsaa)
278	{
279	SDL_GL_SetAttribute (SDL_GL_MULTISAMPLEBUFFERS, 1);
280	SDL_GL_SetAttribute (SDL_GL_MULTISAMPLESAMPLES, fsaa);
281	}
282
283	if (SDL_SetVideoMode (w, h, bpp, video_flags) == NULL)
284	{
285	fprintf (stderr, "Couldn't set GL mode: %s\n", SDL_GetError ());
286	SDL_Quit ();
287	exit (1);
288	}
289
290	printf ("Screen BPP: %d\n", SDL_GetVideoSurface ()->format->BitsPerPixel);
291	printf ("\n");
292	printf ("Vendor : %s\n", glGetString (GL_VENDOR));
293	printf ("Renderer : %s\n", glGetString (GL_RENDERER));
294	printf ("Version : %s\n", glGetString (GL_VERSION));
295	printf ("Extensions : %s\n", glGetString (GL_EXTENSIONS));
296	printf ("\n");
297
298	SDL_GL_GetAttribute (SDL_GL_RED_SIZE, &value);
299	printf ("SDL_GL_RED_SIZE: requested %d, got %d\n", rgb_size[0], value);
300	SDL_GL_GetAttribute (SDL_GL_GREEN_SIZE, &value);
301	printf ("SDL_GL_GREEN_SIZE: requested %d, got %d\n", rgb_size[1], value);
302	SDL_GL_GetAttribute (SDL_GL_BLUE_SIZE, &value);
303	printf ("SDL_GL_BLUE_SIZE: requested %d, got %d\n", rgb_size[2], value);
304	SDL_GL_GetAttribute (SDL_GL_DEPTH_SIZE, &value);
305	printf ("SDL_GL_DEPTH_SIZE: requested %d, got %d\n", bpp, value);
306	SDL_GL_GetAttribute (SDL_GL_DOUBLEBUFFER, &value);
307	printf ("SDL_GL_DOUBLEBUFFER: requested 1, got %d\n", value);
308
309	if (fsaa)
310	{
311	SDL_GL_GetAttribute (SDL_GL_MULTISAMPLEBUFFERS, &value);
312	printf ("SDL_GL_MULTISAMPLEBUFFERS: requested 1, got %d\n", value);
313	SDL_GL_GetAttribute (SDL_GL_MULTISAMPLESAMPLES, &value);
314	printf ("SDL_GL_MULTISAMPLESAMPLES: requested %d, got %d\n", fsaa,
315	value);
316	}
317
318	/* Set the window manager title bar */
319	SDL_WM_SetCaption ("libgender rendering test", "gendertest");
320
321	/* Set the gamma for the window */
322	if (gamma != 0.0)
323	SDL_SetGamma (gamma, gamma, gamma);
324
325	// load a entity
326	for (int i = 0; i < 7; i++)
327	{
328	txtprt_parser p;
329	entity_transform *f = new entity_transform;
330	entity *e;
331	try
332	{
333	e = p.read ("test.blasc");
334	} catch (txtprt_i_exception & e)
335	{
336	cout << "ERR: " << e.msg << endl;
337	}
338	f->set (e);
339	f->m.translate (vec3 (0, -1, -i*5));
340	f->show ();
341	}
342
343	camera.orig.x = camera.orig.y = camera.orig.z = 0;
344	camera.p = point (0, 0, 10);
345	camera.d = vec3 (0, 0, -1);
346	camera.u = vec3 (0, 1, 0);
347	camera.w = w; camera.h = h;
348	camera.fov = 90;
349
350	glMatrixMode (GL_MODELVIEW);
351	glLoadIdentity ();
352
353	glEnable (GL_CULL_FACE);
354	glEnable (GL_DEPTH_TEST);
355	glShadeModel (GL_SMOOTH);
356
357	glEnable (GL_LIGHTING);
358	//GLfloat lightc[4] = { 1, 0.1, 0.1, 1 };
359	//glLightf (GL_LIGHT0, GL_QUADRATIC_ATTENUATION);
360	//glLightfv (GL_LIGHT0, GL_DIFFUSE, lightc);
361	glEnable (GL_LIGHT0);
362
363	/* Loop until done. */
364	start_time = SDL_GetTicks ();
365	frames = 0;
366
367	draw_context c (camera);
368
369	while (!done)
370	{
371	GLenum gl_error;
372	char *sdl_error;
373	SDL_Event event;
374
375	glClear (GL_COLOR_BUFFER_BIT \| GL_DEPTH_BUFFER_BIT);
376
377	camera.p.x += camera_velocity.x * timer.diff;
378	camera.p.y += camera_velocity.y * timer.diff;
379	camera.p.z += camera_velocity.z * timer.diff;
380
381	GLfloat lightp[4];
382	lightp[0] = camera.p.x;
383	lightp[1] = camera.p.y;
384	lightp[2] = camera.p.z;
385	lightp[3] = 1;
386	glLightfv (GL_LIGHT0, GL_POSITION, lightp);
387
388	#if 0
389	static GLfloat ry;
390	ry += 0.001;
391	camera.d.x = cos (ry);
392	camera.d.z = sin (ry);
393	//camera.d.y = sin (ry * 0.1);
394	#endif
395
396	c.mode = draw_context::DEPTH;
397	camera.draw (c);
398	c.mode = draw_context::LIGHTED;
399	camera.draw (c);
400
401	SDL_GL_SwapBuffers ();
402	timer.frame ();
403
404	/* Check for error conditions. */
405	gl_error = glGetError ();
406
407	if (gl_error != GL_NO_ERROR)
408	fprintf (stderr, "testgl: OpenGL error: %d\n", gl_error);
409
410	sdl_error = SDL_GetError ();
411
412	if (sdl_error[0] != '\0')
413	{
414	fprintf (stderr, "testgl: SDL error '%s'\n", sdl_error);
415	SDL_ClearError ();
416	}
417
418	/* Allow the user to see what's happening */
419	//SDL_Delay (20);
420
421	/* Check if there's a pending event. */
422	while (SDL_PollEvent (&event))
423	done = HandleEvent (&event);
424
425	++frames;
426	}
427
428	/* Print out the frames per second */
429	this_time = SDL_GetTicks ();
430	if (this_time != start_time)
431	{
432	printf ("%2.2f FPS\n",
433	((float) frames / (this_time - start_time)) * 1000.0);
434	}
435
436	if (global_image)
437	{
438	SDL_FreeSurface (global_image);
439	global_image = NULL;
440	}
441	if (global_texture)
442	{
443	glDeleteTextures (1, &global_texture);
444	global_texture = 0;
445	}
446
447	/* Destroy our GL context, etc. */
448	SDL_Quit ();
449	return (0);
450	}
451
452	int
453	main (int argc, char *argv[])
454	{
455	int i, logo;
456	int numtests;
457	int bpp = 0;
458	int slowly;
459	float gamma = 0.0;
460	int noframe = 0;
461	int fsaa = 0;
462
463	logo = 0;
464	slowly = 0;
465	numtests = 1;
466	for (i = 1; argv[i]; ++i)
467	{
468	if (strcmp (argv[i], "-twice") == 0)
469	{
470	++numtests;
471	}
472	if (strcmp (argv[i], "-slow") == 0)
473	{
474	slowly = 1;
475	}
476	if (strcmp (argv[i], "-bpp") == 0)
477	{
478	bpp = atoi (argv[++i]);
479	}
480	if (strcmp (argv[i], "-gamma") == 0)
481	{
482	gamma = (float) atof (argv[++i]);
483	}
484	if (strcmp (argv[i], "-noframe") == 0)
485	{
486	noframe = 1;
487	}
488	if (strcmp (argv[i], "-fsaa") == 0)
489	{
490	++fsaa;
491	}
492	if (strncmp (argv[i], "-h", 2) == 0)
493	{
494	printf
495	("Usage: %s [-twice] [-logo] [-slow] [-bpp n] [-gamma n] [-noframe] [-fsaa]\n",
496	argv[0]);
497	exit (0);
498	}
499	}
500
501	for (i = 0; i < numtests; ++i)
502	RunGLTest (argc, argv, logo, slowly, bpp, gamma, noframe, fsaa);
503
504	return 0;
505	}