libgender/test.C

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

#include "SDL.h"
#include "SDL_opengl.h"

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

#include "util.h"
#include "entity.h"
#include "txtprt_import.h"

CGcontext cgc;
CGprogram vsh, fsh;
CGparameter mv, mvp, lightpos;
CGprofile vsh_profile, fsh_profile;

static void CheckCgError (void)
{
  CGerror err = cgGetError ();

  if (err != CG_NO_ERROR)
    {
      printf("CG error: %s\n", cgGetErrorString (err));
      exit(1);
    }
}

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

view camera;
vec3 camera_velocity;
float camera_angle = 0, camera_velocity_angle;
float camera_velocity_factor = 20;

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_UP)    camera_velocity.z--;
      if (event->key.keysym.sym == SDLK_DOWN)  camera_velocity.z++;
      if (event->key.keysym.sym == SDLK_LEFT)  camera_velocity.x--;
      if (event->key.keysym.sym == SDLK_RIGHT) camera_velocity.x++;
      if (event->key.keysym.sym == SDLK_a)     camera_velocity.y--;
      if (event->key.keysym.sym == SDLK_s)     camera_velocity.y++;
      if (event->key.keysym.sym == SDLK_v)     camera_velocity_factor *= 1.5;
      if (event->key.keysym.sym == SDLK_b)     camera_velocity_factor /= 1.5;
      if (event->key.keysym.sym == SDLK_e)     camera_velocity_angle++;
      if (event->key.keysym.sym == SDLK_q)     camera_velocity_angle--;

      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++;
      if (event->key.keysym.sym == SDLK_DOWN)  camera_velocity.z--;
      if (event->key.keysym.sym == SDLK_LEFT)  camera_velocity.x++;
      if (event->key.keysym.sym == SDLK_RIGHT) camera_velocity.x--;
      if (event->key.keysym.sym == SDLK_a)     camera_velocity.y++;
      if (event->key.keysym.sym == SDLK_s)     camera_velocity.y--;
      if (event->key.keysym.sym == SDLK_e)     camera_velocity_angle--;
      if (event->key.keysym.sym == SDLK_q)     camera_velocity_angle++;
      break;

    case SDL_QUIT:
      done = 1;
      break;
    }

  return (done);
}

void draw_floor (int size, int dx, int dy, int dz)
{
  int x, z, ry;

  for (x = 0; x < 100; x++)
    {
      for (z = 0; z < 100; z++)
        {
          vector<vertex2d> pts;
          pts.push_back (vertex2d (point (dx + (x * size),       dy, dz + (z * size)),       vec3  (0, 1, 0), texc (0, 0)));
          pts.push_back (vertex2d (point (dx + (x * size),       dy, dz + ((z + 1) * size)), vec3  (0, 1, 0), texc (0, 1)));
          pts.push_back (vertex2d (point (dx + ((x + 1) * size), dy, dz + ((z + 1) * size)), vec3  (0, 1, 0), texc (1, 1)));
          pts.push_back (vertex2d (point (dx + ((x + 1) * size), dy, dz + (z * size)),       vec3  (0, 1, 0), texc (1, 0)));

          geometry_quads *q = new geometry_quads;
          q->set (pts);
          (new entity (q))->show ();
#if 0
          vector<vertex2d> pts;
          pts.push_back (vertex2d (point (   0, 0,    0), vec3 (0, 1, 0), texc (0, 0)));
          pts.push_back (vertex2d (point (   0, 0, size), vec3 (0, 1, 0), texc (0, 1)));
          pts.push_back (vertex2d (point (size, 0, size), vec3 (0, 1, 0), texc (1, 1)));
          pts.push_back (vertex2d (point (size, 0,    0), vec3 (0, 1, 0), texc (1, 0)));

          geometry_quads *q = new geometry_quads;
          q->set (pts);
          entity *e = new entity (q);
          e->move (vec3 (dx + x * size, dy, dz + z * size));
          e->show ();
#endif
        }
    }
}

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;
      GLenum gl_error;

  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);

  for (int i = 0; i < 70; i++)
    {
      // load a entity
      txtprt_parser p;
      geometry *g;
      try
        {
          g = p.read ("test.blasc");
        }
      catch (txtprt_i_exception & e)
        {
          cout << "ERR: " << e.msg << endl;
        }

      entity *e = new entity (g);
      e->move (vec3 (i*5, -3, -i*10));
      e->show ();
    }

  draw_floor (10, -500, -10, -1000);

  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 = 35;

  glMatrixMode (GL_MODELVIEW);
  glLoadIdentity ();

  glEnable (GL_CULL_FACE);
  glEnable (GL_DEPTH_TEST);

  glShadeModel (GL_SMOOTH);

  glEnable (GL_LIGHTING);
  glEnable (GL_LIGHT0);

  cgc = cgCreateContext ();

  vsh_profile = CG_PROFILE_ARBVP1;
  //if (cgGLIsProfileSupported (CG_PROFILE_VP30)) vsh_profile = CG_PROFILE_VP30;
  //if (cgGLIsProfileSupported (CG_PROFILE_VP40)) vsh_profile = CG_PROFILE_VP40;
  fsh_profile = CG_PROFILE_ARBFP1;
  //if (cgGLIsProfileSupported (CG_PROFILE_FP30)) fsh_profile = CG_PROFILE_FP30;
  //if (cgGLIsProfileSupported (CG_PROFILE_FP40)) fsh_profile = CG_PROFILE_FP40;

  vsh = cgCreateProgramFromFile (cgc, CG_SOURCE, "vsh.cg", vsh_profile, 0, 0);
  CheckCgError ();
  cgGLLoadProgram (vsh);
  CheckCgError ();
  mv = cgGetNamedParameter (vsh, "WorldProj");
  mvp = cgGetNamedParameter (vsh, "WorldViewProj");
  lightpos = cgGetNamedParameter (vsh, "LightPos");
  CheckCgError ();

  CGparameter g_Texture; // the texture parameter


  fsh = cgCreateProgramFromFile (cgc, CG_SOURCE, "fsh.cg", fsh_profile, 0, 0);
  Texture t("o.jpg");
  g_Texture = cgGetNamedParameter(fsh, "Texture"); // the texture cg-warper ;)
  cgGLSetTextureParameter(g_Texture, t.texture); // Bind the texture number 999 to g_Texture
  CheckCgError ();
  cgGLLoadProgram (fsh);
  CheckCgError ();

  cgGLBindProgram (vsh);
  CheckCgError ();
  cgGLBindProgram (fsh);
  CheckCgError ();

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

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

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

      camera_angle += camera_velocity_factor * camera_velocity_angle * timer.diff;
      camera.d.z = -cos (camera_angle * 12 / 180.);
      camera.d.x = sin (camera_angle * 12 / 180.);

      cgGLSetParameter4f (lightpos, camera.p.x, camera.p.y, camera.p.z, 1);

      glBindTexture (GL_TEXTURE_2D, t.texture);
      cgGLEnableTextureParameter (g_Texture); // Enable the texture parameter 

#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

      camera.begin ();
      camera.pass (view::DEPTH);
      camera.pass (view::LIGHTED);
      camera.end ();

      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:	1.47
Committed:	Thu Oct 7 23:39:43 2004 UTC (19 years, 8 months ago) by root
Content type:	text/plain
Branch:	MAIN
Changes since 1.46:	+42 -7 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	#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	CGprofile vsh_profile, fsh_profile;
20
21	static void CheckCgError (void)
22	{
23	CGerror err = cgGetError ();
24
25	if (err != CG_NO_ERROR)
26	{
27	printf("CG error: %s\n", cgGetErrorString (err));
28	exit(1);
29	}
30	}
31
32	/**********************************************************************/
33
34	view camera;
35	vec3 camera_velocity;
36	float camera_angle = 0, camera_velocity_angle;
37	float camera_velocity_factor = 20;
38
39	void
40	HotKey_ToggleFullScreen (void)
41	{
42	SDL_Surface *screen;
43
44	screen = SDL_GetVideoSurface ();
45	if (SDL_WM_ToggleFullScreen (screen))
46	printf ("Toggled fullscreen mode - now %s\n",
47	(screen->flags & SDL_FULLSCREEN) ? "fullscreen" : "windowed");
48	else
49	printf ("Unable to toggle fullscreen mode\n");
50	}
51
52	void
53	HotKey_ToggleGrab (void)
54	{
55	SDL_GrabMode mode;
56
57	printf ("Ctrl-G: toggling input grab!\n");
58	mode = SDL_WM_GrabInput (SDL_GRAB_QUERY);
59	if (mode == SDL_GRAB_ON)
60	printf ("Grab was on\n");
61	else
62	printf ("Grab was off\n");
63
64	mode = SDL_WM_GrabInput (mode ? SDL_GRAB_OFF : SDL_GRAB_ON);
65	if (mode == SDL_GRAB_ON)
66	printf ("Grab is now on\n");
67	else
68	printf ("Grab is now off\n");
69	}
70
71	void
72	HotKey_Iconify (void)
73	{
74	printf ("Ctrl-Z: iconifying window!\n");
75	SDL_WM_IconifyWindow ();
76	}
77
78	int
79	HandleEvent (SDL_Event * event)
80	{
81	int done;
82
83	done = 0;
84	switch (event->type)
85	{
86	case SDL_ACTIVEEVENT:
87	/* See what happened */
88	printf ("app %s ", event->active.gain ? "gained" : "lost");
89	if (event->active.state & SDL_APPACTIVE)
90	{
91	printf ("active ");
92	}
93	else if (event->active.state & SDL_APPMOUSEFOCUS)
94	{
95	printf ("mouse ");
96	}
97	else if (event->active.state & SDL_APPINPUTFOCUS)
98	{
99	printf ("input ");
100	}
101
102	printf ("focus\n");
103	break;
104
105	case SDL_KEYDOWN:
106	if (event->key.keysym.sym == SDLK_UP) camera_velocity.z--;
107	if (event->key.keysym.sym == SDLK_DOWN) camera_velocity.z++;
108	if (event->key.keysym.sym == SDLK_LEFT) camera_velocity.x--;
109	if (event->key.keysym.sym == SDLK_RIGHT) camera_velocity.x++;
110	if (event->key.keysym.sym == SDLK_a) camera_velocity.y--;
111	if (event->key.keysym.sym == SDLK_s) camera_velocity.y++;
112	if (event->key.keysym.sym == SDLK_v) camera_velocity_factor *= 1.5;
113	if (event->key.keysym.sym == SDLK_b) camera_velocity_factor /= 1.5;
114	if (event->key.keysym.sym == SDLK_e) camera_velocity_angle++;
115	if (event->key.keysym.sym == SDLK_q) camera_velocity_angle--;
116
117	if (event->key.keysym.sym == SDLK_ESCAPE)
118	done = 1;
119
120	if ((event->key.keysym.sym == SDLK_g) &&
121	(event->key.keysym.mod & KMOD_CTRL))
122	HotKey_ToggleGrab ();
123
124	if ((event->key.keysym.sym == SDLK_z) &&
125	(event->key.keysym.mod & KMOD_CTRL))
126	HotKey_Iconify ();
127
128	if ((event->key.keysym.sym == SDLK_RETURN) &&
129	(event->key.keysym.mod & KMOD_ALT))
130	HotKey_ToggleFullScreen ();
131
132	break;
133
134	case SDL_KEYUP:
135	if (event->key.keysym.sym == SDLK_UP) camera_velocity.z++;
136	if (event->key.keysym.sym == SDLK_DOWN) camera_velocity.z--;
137	if (event->key.keysym.sym == SDLK_LEFT) camera_velocity.x++;
138	if (event->key.keysym.sym == SDLK_RIGHT) camera_velocity.x--;
139	if (event->key.keysym.sym == SDLK_a) camera_velocity.y++;
140	if (event->key.keysym.sym == SDLK_s) camera_velocity.y--;
141	if (event->key.keysym.sym == SDLK_e) camera_velocity_angle--;
142	if (event->key.keysym.sym == SDLK_q) camera_velocity_angle++;
143	break;
144
145	case SDL_QUIT:
146	done = 1;
147	break;
148	}
149
150	return (done);
151	}
152
153	void draw_floor (int size, int dx, int dy, int dz)
154	{
155	int x, z, ry;
156
157	for (x = 0; x < 100; x++)
158	{
159	for (z = 0; z < 100; z++)
160	{
161	vector<vertex2d> pts;
162	pts.push_back (vertex2d (point (dx + (x * size), dy, dz + (z * size)), vec3 (0, 1, 0), texc (0, 0)));
163	pts.push_back (vertex2d (point (dx + (x * size), dy, dz + ((z + 1) * size)), vec3 (0, 1, 0), texc (0, 1)));
164	pts.push_back (vertex2d (point (dx + ((x + 1) * size), dy, dz + ((z + 1) * size)), vec3 (0, 1, 0), texc (1, 1)));
165	pts.push_back (vertex2d (point (dx + ((x + 1) * size), dy, dz + (z * size)), vec3 (0, 1, 0), texc (1, 0)));
166
167	geometry_quads *q = new geometry_quads;
168	q->set (pts);
169	(new entity (q))->show ();
170	#if 0
171	vector<vertex2d> pts;
172	pts.push_back (vertex2d (point ( 0, 0, 0), vec3 (0, 1, 0), texc (0, 0)));
173	pts.push_back (vertex2d (point ( 0, 0, size), vec3 (0, 1, 0), texc (0, 1)));
174	pts.push_back (vertex2d (point (size, 0, size), vec3 (0, 1, 0), texc (1, 1)));
175	pts.push_back (vertex2d (point (size, 0, 0), vec3 (0, 1, 0), texc (1, 0)));
176
177	geometry_quads *q = new geometry_quads;
178	q->set (pts);
179	entity *e = new entity (q);
180	e->move (vec3 (dx + x * size, dy, dz + z * size));
181	e->show ();
182	#endif
183	}
184	}
185	}
186
187	int
188	RunGLTest (int argc, char *argv[],
189	int logo, int slowly, int bpp, float gamma, int noframe, int fsaa)
190	{
191	int i;
192	int rgb_size[3];
193	int w = 640;
194	int h = 480;
195	int done = 0;
196	int frames;
197	Uint32 start_time, this_time;
198	Uint32 video_flags;
199	int value;
200	GLenum gl_error;
201
202	if (SDL_Init (SDL_INIT_VIDEO) < 0)
203	{
204	fprintf (stderr, "Couldn't initialize SDL: %s\n", SDL_GetError ());
205	exit (1);
206	}
207
208	/* See if we should detect the display depth */
209	if (bpp == 0)
210	{
211	if (SDL_GetVideoInfo ()->vfmt->BitsPerPixel <= 8)
212	bpp = 8;
213	else
214	bpp = 16; /* More doesn't seem to work */
215	}
216
217	video_flags = SDL_OPENGL;
218
219	for (i = 1; argv[i]; ++i)
220	if (strcmp (argv[1], "-fullscreen") == 0)
221	video_flags \|= SDL_FULLSCREEN;
222
223	if (noframe)
224	video_flags \|= SDL_NOFRAME;
225
226	/* Initialize the display */
227	switch (bpp)
228	{
229	case 8:
230	rgb_size[0] = 3;
231	rgb_size[1] = 3;
232	rgb_size[2] = 2;
233	break;
234
235	case 15:
236	case 16:
237	rgb_size[0] = 5;
238	rgb_size[1] = 5;
239	rgb_size[2] = 5;
240	break;
241
242	default:
243	rgb_size[0] = 8;
244	rgb_size[1] = 8;
245	rgb_size[2] = 8;
246	break;
247	}
248
249	SDL_GL_SetAttribute (SDL_GL_RED_SIZE, rgb_size[0]);
250	SDL_GL_SetAttribute (SDL_GL_GREEN_SIZE, rgb_size[1]);
251	SDL_GL_SetAttribute (SDL_GL_BLUE_SIZE, rgb_size[2]);
252	SDL_GL_SetAttribute (SDL_GL_DEPTH_SIZE, 16);
253	SDL_GL_SetAttribute (SDL_GL_DOUBLEBUFFER, 1);
254
255	if (fsaa)
256	{
257	SDL_GL_SetAttribute (SDL_GL_MULTISAMPLEBUFFERS, 1);
258	SDL_GL_SetAttribute (SDL_GL_MULTISAMPLESAMPLES, fsaa);
259	}
260
261	if (SDL_SetVideoMode (w, h, bpp, video_flags) == NULL)
262	{
263	fprintf (stderr, "Couldn't set GL mode: %s\n", SDL_GetError ());
264	SDL_Quit ();
265	exit (1);
266	}
267
268	printf ("Screen BPP: %d\n", SDL_GetVideoSurface ()->format->BitsPerPixel);
269	printf ("\n");
270	printf ("Vendor : %s\n", glGetString (GL_VENDOR));
271	printf ("Renderer : %s\n", glGetString (GL_RENDERER));
272	printf ("Version : %s\n", glGetString (GL_VERSION));
273	printf ("Extensions : %s\n", glGetString (GL_EXTENSIONS));
274	printf ("\n");
275
276	SDL_GL_GetAttribute (SDL_GL_RED_SIZE, &value);
277	printf ("SDL_GL_RED_SIZE: requested %d, got %d\n", rgb_size[0], value);
278	SDL_GL_GetAttribute (SDL_GL_GREEN_SIZE, &value);
279	printf ("SDL_GL_GREEN_SIZE: requested %d, got %d\n", rgb_size[1], value);
280	SDL_GL_GetAttribute (SDL_GL_BLUE_SIZE, &value);
281	printf ("SDL_GL_BLUE_SIZE: requested %d, got %d\n", rgb_size[2], value);
282	SDL_GL_GetAttribute (SDL_GL_DEPTH_SIZE, &value);
283	printf ("SDL_GL_DEPTH_SIZE: requested %d, got %d\n", bpp, value);
284	SDL_GL_GetAttribute (SDL_GL_DOUBLEBUFFER, &value);
285	printf ("SDL_GL_DOUBLEBUFFER: requested 1, got %d\n", value);
286
287	if (fsaa)
288	{
289	SDL_GL_GetAttribute (SDL_GL_MULTISAMPLEBUFFERS, &value);
290	printf ("SDL_GL_MULTISAMPLEBUFFERS: requested 1, got %d\n", value);
291	SDL_GL_GetAttribute (SDL_GL_MULTISAMPLESAMPLES, &value);
292	printf ("SDL_GL_MULTISAMPLESAMPLES: requested %d, got %d\n", fsaa,
293	value);
294	}
295
296	/* Set the window manager title bar */
297	SDL_WM_SetCaption ("libgender rendering test", "gendertest");
298
299	/* Set the gamma for the window */
300	if (gamma != 0.0)
301	SDL_SetGamma (gamma, gamma, gamma);
302
303	for (int i = 0; i < 70; i++)
304	{
305	// load a entity
306	txtprt_parser p;
307	geometry *g;
308	try
309	{
310	g = p.read ("test.blasc");
311	}
312	catch (txtprt_i_exception & e)
313	{
314	cout << "ERR: " << e.msg << endl;
315	}
316
317	entity *e = new entity (g);
318	e->move (vec3 (i5, -3, -i10));
319	e->show ();
320	}
321
322	draw_floor (10, -500, -10, -1000);
323
324	camera.orig.x = camera.orig.y = camera.orig.z = 0;
325	camera.p = point (0, 0, 10);
326	camera.d = vec3 (0, 0, -1);
327	camera.u = vec3 (0, 1, 0);
328	camera.w = w; camera.h = h;
329	camera.fov = 35;
330
331	glMatrixMode (GL_MODELVIEW);
332	glLoadIdentity ();
333
334	glEnable (GL_CULL_FACE);
335	glEnable (GL_DEPTH_TEST);
336
337	glShadeModel (GL_SMOOTH);
338
339	glEnable (GL_LIGHTING);
340	glEnable (GL_LIGHT0);
341
342	cgc = cgCreateContext ();
343
344	vsh_profile = CG_PROFILE_ARBVP1;
345	//if (cgGLIsProfileSupported (CG_PROFILE_VP30)) vsh_profile = CG_PROFILE_VP30;
346	//if (cgGLIsProfileSupported (CG_PROFILE_VP40)) vsh_profile = CG_PROFILE_VP40;
347	fsh_profile = CG_PROFILE_ARBFP1;
348	//if (cgGLIsProfileSupported (CG_PROFILE_FP30)) fsh_profile = CG_PROFILE_FP30;
349	//if (cgGLIsProfileSupported (CG_PROFILE_FP40)) fsh_profile = CG_PROFILE_FP40;
350
351	vsh = cgCreateProgramFromFile (cgc, CG_SOURCE, "vsh.cg", vsh_profile, 0, 0);
352	CheckCgError ();
353	cgGLLoadProgram (vsh);
354	CheckCgError ();
355	mv = cgGetNamedParameter (vsh, "WorldProj");
356	mvp = cgGetNamedParameter (vsh, "WorldViewProj");
357	lightpos = cgGetNamedParameter (vsh, "LightPos");
358	CheckCgError ();
359
360	CGparameter g_Texture; // the texture parameter
361
362
363	fsh = cgCreateProgramFromFile (cgc, CG_SOURCE, "fsh.cg", fsh_profile, 0, 0);
364	Texture t("o.jpg");
365	g_Texture = cgGetNamedParameter(fsh, "Texture"); // the texture cg-warper ;)
366	cgGLSetTextureParameter(g_Texture, t.texture); // Bind the texture number 999 to g_Texture
367	CheckCgError ();
368	cgGLLoadProgram (fsh);
369	CheckCgError ();
370
371	cgGLBindProgram (vsh);
372	CheckCgError ();
373	cgGLBindProgram (fsh);
374	CheckCgError ();
375
376	/* Loop until done. */
377	start_time = SDL_GetTicks ();
378	frames = 0;
379
380	while (!done)
381	{
382	char *sdl_error;
383	SDL_Event event;
384
385	camera.p.x += camera_velocity_factor * camera_velocity.x * timer.diff;
386	camera.p.y += camera_velocity_factor * camera_velocity.y * timer.diff;
387	camera.p.z += camera_velocity_factor * camera_velocity.z * timer.diff;
388
389	camera_angle += camera_velocity_factor * camera_velocity_angle * timer.diff;
390	camera.d.z = -cos (camera_angle * 12 / 180.);
391	camera.d.x = sin (camera_angle * 12 / 180.);
392
393	cgGLSetParameter4f (lightpos, camera.p.x, camera.p.y, camera.p.z, 1);
394
395	glBindTexture (GL_TEXTURE_2D, t.texture);
396	cgGLEnableTextureParameter (g_Texture); // Enable the texture parameter
397
398	#if 0
399	static GLfloat ry;
400	ry += 0.001;
401	camera.d.x = cos (ry);
402	camera.d.z = sin (ry);
403	//camera.d.y = sin (ry * 0.1);
404	#endif
405
406	camera.begin ();
407	camera.pass (view::DEPTH);
408	camera.pass (view::LIGHTED);
409	camera.end ();
410
411	SDL_GL_SwapBuffers ();
412	timer.frame ();
413
414	/* Check for error conditions. */
415	gl_error = glGetError ();
416
417	if (gl_error != GL_NO_ERROR) fprintf (stderr, "testgl: OpenGL error: %d\n", gl_error);
418
419	sdl_error = SDL_GetError ();
420
421	if (sdl_error[0] != '\0')
422	{
423	fprintf (stderr, "testgl: SDL error '%s'\n", sdl_error);
424	SDL_ClearError ();
425	}
426
427	/* Allow the user to see what's happening */
428	//SDL_Delay (20);
429
430	/* Check if there's a pending event. */
431	while (SDL_PollEvent (&event))
432	done = HandleEvent (&event);
433
434
435	++frames;
436	}
437
438	/* Print out the frames per second */
439	this_time = SDL_GetTicks ();
440	if (this_time != start_time)
441	{
442	printf ("%2.2f FPS\n",
443	((float) frames / (this_time - start_time)) * 1000.0);
444	}
445
446	if (global_image)
447	{
448	SDL_FreeSurface (global_image);
449	global_image = NULL;
450	}
451	if (global_texture)
452	{
453	glDeleteTextures (1, &global_texture);
454	global_texture = 0;
455	}
456
457	/* Destroy our GL context, etc. */
458	SDL_Quit ();
459	return (0);
460	}
461
462	int
463	main (int argc, char *argv[])
464	{
465	int i, logo;
466	int numtests;
467	int bpp = 0;
468	int slowly;
469	float gamma = 0.0;
470	int noframe = 0;
471	int fsaa = 0;
472
473	logo = 0;
474	slowly = 0;
475	numtests = 1;
476	for (i = 1; argv[i]; ++i)
477	{
478	if (strcmp (argv[i], "-twice") == 0)
479	{
480	++numtests;
481	}
482	if (strcmp (argv[i], "-slow") == 0)
483	{
484	slowly = 1;
485	}
486	if (strcmp (argv[i], "-bpp") == 0)
487	{
488	bpp = atoi (argv[++i]);
489	}
490	if (strcmp (argv[i], "-gamma") == 0)
491	{
492	gamma = (float) atof (argv[++i]);
493	}
494	if (strcmp (argv[i], "-noframe") == 0)
495	{
496	noframe = 1;
497	}
498	if (strcmp (argv[i], "-fsaa") == 0)
499	{
500	++fsaa;
501	}
502	if (strncmp (argv[i], "-h", 2) == 0)
503	{
504	printf
505	("Usage: %s [-twice] [-logo] [-slow] [-bpp n] [-gamma n] [-noframe] [-fsaa]\n",
506	argv[0]);
507	exit (0);
508	}
509	}
510
511	for (i = 0; i < numtests; ++i)
512	RunGLTest (argc, argv, logo, slowly, bpp, gamma, noframe, fsaa);
513
514	return 0;
515	}