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 = 80;

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_RIGHT) camera_velocity_angle++;
      if (event->key.keysym.sym == SDLK_LEFT)  camera_velocity_angle--;
      if (event->key.keysym.sym == SDLK_e)     camera_velocity.y--;
      if (event->key.keysym.sym == SDLK_q)     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_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_angle++;
      if (event->key.keysym.sym == SDLK_RIGHT) camera_velocity_angle--;
      if (event->key.keysym.sym == SDLK_e)     camera_velocity.y++;
      if (event->key.keysym.sym == SDLK_q)     camera_velocity.y--;
      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 (   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 ();
        }
    }
}

void draw_test_nurb () {
  geometry_nurbs *q = new geometry_nurbs;
  q->set ();
  entity *e = new entity (q);
  e->move (vec3 (10, 3, -4));
  e->show ();
}

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 < 1; 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);
  draw_test_nurb ();

  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 = camera.p - camera.d * (camera_velocity_factor * timer.diff) * camera_velocity.z;
      camera.p = camera.p - camera.u * (camera_velocity_factor * timer.diff) * camera_velocity.y;
      camera_angle += 30 * 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:	1.50
Committed:	Sat Oct 9 11:56:50 2004 UTC (19 years, 8 months ago) by root
Content type:	text/plain
Branch:	MAIN
Changes since 1.49:	+12 -18 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 = 80;
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_RIGHT) camera_velocity_angle++;
109	if (event->key.keysym.sym == SDLK_LEFT) camera_velocity_angle--;
110	if (event->key.keysym.sym == SDLK_e) camera_velocity.y--;
111	if (event->key.keysym.sym == SDLK_q) 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
115	if (event->key.keysym.sym == SDLK_ESCAPE)
116	done = 1;
117
118	if ((event->key.keysym.sym == SDLK_g) &&
119	(event->key.keysym.mod & KMOD_CTRL))
120	HotKey_ToggleGrab ();
121
122	if ((event->key.keysym.sym == SDLK_z) &&
123	(event->key.keysym.mod & KMOD_CTRL))
124	HotKey_Iconify ();
125
126	if ((event->key.keysym.sym == SDLK_RETURN) &&
127	(event->key.keysym.mod & KMOD_ALT))
128	HotKey_ToggleFullScreen ();
129
130	break;
131
132	case SDL_KEYUP:
133	if (event->key.keysym.sym == SDLK_UP) camera_velocity.z++;
134	if (event->key.keysym.sym == SDLK_DOWN) camera_velocity.z--;
135	if (event->key.keysym.sym == SDLK_LEFT) camera_velocity_angle++;
136	if (event->key.keysym.sym == SDLK_RIGHT) camera_velocity_angle--;
137	if (event->key.keysym.sym == SDLK_e) camera_velocity.y++;
138	if (event->key.keysym.sym == SDLK_q) camera_velocity.y--;
139	break;
140
141	case SDL_QUIT:
142	done = 1;
143	break;
144	}
145
146	return (done);
147	}
148
149	void draw_floor (int size, int dx, int dy, int dz)
150	{
151	int x, z, ry;
152
153	for (x = 0; x < 100; x++)
154	{
155	for (z = 0; z < 100; z++)
156	{
157	vector<vertex2d> pts;
158	pts.push_back (vertex2d (point ( 0, 0, 0), vec3 (0, 1, 0), texc (0, 0)));
159	pts.push_back (vertex2d (point ( 0, 0, size), vec3 (0, 1, 0), texc (0, 1)));
160	pts.push_back (vertex2d (point (size, 0, size), vec3 (0, 1, 0), texc (1, 1)));
161	pts.push_back (vertex2d (point (size, 0, 0), vec3 (0, 1, 0), texc (1, 0)));
162
163	geometry_quads *q = new geometry_quads;
164	q->set (pts);
165	entity *e = new entity (q);
166	e->move (vec3 (dx + x * size, dy, dz + z * size));
167	e->show ();
168	}
169	}
170	}
171
172	void draw_test_nurb () {
173	geometry_nurbs *q = new geometry_nurbs;
174	q->set ();
175	entity *e = new entity (q);
176	e->move (vec3 (10, 3, -4));
177	e->show ();
178	}
179
180	int
181	RunGLTest (int argc, char *argv[],
182	int logo, int slowly, int bpp, float gamma, int noframe, int fsaa)
183	{
184	int i;
185	int rgb_size[3];
186	int w = 640;
187	int h = 480;
188	int done = 0;
189	int frames;
190	Uint32 start_time, this_time;
191	Uint32 video_flags;
192	int value;
193	GLenum gl_error;
194
195	if (SDL_Init (SDL_INIT_VIDEO) < 0)
196	{
197	fprintf (stderr, "Couldn't initialize SDL: %s\n", SDL_GetError ());
198	exit (1);
199	}
200
201	/* See if we should detect the display depth */
202	if (bpp == 0)
203	{
204	if (SDL_GetVideoInfo ()->vfmt->BitsPerPixel <= 8)
205	bpp = 8;
206	else
207	bpp = 16; /* More doesn't seem to work */
208	}
209
210	video_flags = SDL_OPENGL;
211
212	for (i = 1; argv[i]; ++i)
213	if (strcmp (argv[1], "-fullscreen") == 0)
214	video_flags \|= SDL_FULLSCREEN;
215
216	if (noframe)
217	video_flags \|= SDL_NOFRAME;
218
219	/* Initialize the display */
220	switch (bpp)
221	{
222	case 8:
223	rgb_size[0] = 3;
224	rgb_size[1] = 3;
225	rgb_size[2] = 2;
226	break;
227
228	case 15:
229	case 16:
230	rgb_size[0] = 5;
231	rgb_size[1] = 5;
232	rgb_size[2] = 5;
233	break;
234
235	default:
236	rgb_size[0] = 8;
237	rgb_size[1] = 8;
238	rgb_size[2] = 8;
239	break;
240	}
241
242	SDL_GL_SetAttribute (SDL_GL_RED_SIZE, rgb_size[0]);
243	SDL_GL_SetAttribute (SDL_GL_GREEN_SIZE, rgb_size[1]);
244	SDL_GL_SetAttribute (SDL_GL_BLUE_SIZE, rgb_size[2]);
245	SDL_GL_SetAttribute (SDL_GL_DEPTH_SIZE, 16);
246	SDL_GL_SetAttribute (SDL_GL_DOUBLEBUFFER, 1);
247
248	if (fsaa)
249	{
250	SDL_GL_SetAttribute (SDL_GL_MULTISAMPLEBUFFERS, 1);
251	SDL_GL_SetAttribute (SDL_GL_MULTISAMPLESAMPLES, fsaa);
252	}
253
254	if (SDL_SetVideoMode (w, h, bpp, video_flags) == NULL)
255	{
256	fprintf (stderr, "Couldn't set GL mode: %s\n", SDL_GetError ());
257	SDL_Quit ();
258	exit (1);
259	}
260
261	printf ("Screen BPP: %d\n", SDL_GetVideoSurface ()->format->BitsPerPixel);
262	printf ("\n");
263	printf ("Vendor : %s\n", glGetString (GL_VENDOR));
264	printf ("Renderer : %s\n", glGetString (GL_RENDERER));
265	printf ("Version : %s\n", glGetString (GL_VERSION));
266	printf ("Extensions : %s\n", glGetString (GL_EXTENSIONS));
267	printf ("\n");
268
269	SDL_GL_GetAttribute (SDL_GL_RED_SIZE, &value);
270	printf ("SDL_GL_RED_SIZE: requested %d, got %d\n", rgb_size[0], value);
271	SDL_GL_GetAttribute (SDL_GL_GREEN_SIZE, &value);
272	printf ("SDL_GL_GREEN_SIZE: requested %d, got %d\n", rgb_size[1], value);
273	SDL_GL_GetAttribute (SDL_GL_BLUE_SIZE, &value);
274	printf ("SDL_GL_BLUE_SIZE: requested %d, got %d\n", rgb_size[2], value);
275	SDL_GL_GetAttribute (SDL_GL_DEPTH_SIZE, &value);
276	printf ("SDL_GL_DEPTH_SIZE: requested %d, got %d\n", bpp, value);
277	SDL_GL_GetAttribute (SDL_GL_DOUBLEBUFFER, &value);
278	printf ("SDL_GL_DOUBLEBUFFER: requested 1, got %d\n", value);
279
280	if (fsaa)
281	{
282	SDL_GL_GetAttribute (SDL_GL_MULTISAMPLEBUFFERS, &value);
283	printf ("SDL_GL_MULTISAMPLEBUFFERS: requested 1, got %d\n", value);
284	SDL_GL_GetAttribute (SDL_GL_MULTISAMPLESAMPLES, &value);
285	printf ("SDL_GL_MULTISAMPLESAMPLES: requested %d, got %d\n", fsaa,
286	value);
287	}
288
289	/* Set the window manager title bar */
290	SDL_WM_SetCaption ("libgender rendering test", "gendertest");
291
292	/* Set the gamma for the window */
293	if (gamma != 0.0)
294	SDL_SetGamma (gamma, gamma, gamma);
295
296	for (int i = 0; i < 1; i++)
297	{
298	// load a entity
299	txtprt_parser p;
300	geometry *g;
301	try
302	{
303	g = p.read ("test.blasc");
304	}
305	catch (txtprt_i_exception & e)
306	{
307	cout << "ERR: " << e.msg << endl;
308	}
309
310	entity *e = new entity (g);
311	e->move (vec3 (i5, -3, -i10));
312	e->show ();
313	}
314
315	draw_floor (10, -500, -10, -1000);
316	draw_test_nurb ();
317
318	camera.orig.x = camera.orig.y = camera.orig.z = 0;
319	camera.p = point (0, 0, 10);
320	camera.d = vec3 (0, 0, -1);
321	camera.u = vec3 (0, 1, 0);
322	camera.w = w; camera.h = h;
323	camera.fov = 35;
324
325	glMatrixMode (GL_MODELVIEW);
326	glLoadIdentity ();
327
328	glEnable (GL_CULL_FACE);
329	glEnable (GL_DEPTH_TEST);
330
331	glShadeModel (GL_SMOOTH);
332
333	glEnable (GL_LIGHTING);
334	glEnable (GL_LIGHT0);
335
336	cgc = cgCreateContext ();
337
338	vsh_profile = CG_PROFILE_ARBVP1;
339	//if (cgGLIsProfileSupported (CG_PROFILE_VP30)) vsh_profile = CG_PROFILE_VP30;
340	//if (cgGLIsProfileSupported (CG_PROFILE_VP40)) vsh_profile = CG_PROFILE_VP40;
341	fsh_profile = CG_PROFILE_ARBFP1;
342	//if (cgGLIsProfileSupported (CG_PROFILE_FP30)) fsh_profile = CG_PROFILE_FP30;
343	//if (cgGLIsProfileSupported (CG_PROFILE_FP40)) fsh_profile = CG_PROFILE_FP40;
344
345	vsh = cgCreateProgramFromFile (cgc, CG_SOURCE, "vsh.cg", vsh_profile, 0, 0);
346	CheckCgError ();
347	cgGLLoadProgram (vsh);
348	CheckCgError ();
349	mv = cgGetNamedParameter (vsh, "WorldProj");
350	mvp = cgGetNamedParameter (vsh, "WorldViewProj");
351	lightpos = cgGetNamedParameter (vsh, "LightPos");
352	CheckCgError ();
353
354	CGparameter g_Texture; // the texture parameter
355
356
357	fsh = cgCreateProgramFromFile (cgc, CG_SOURCE, "fsh.cg", fsh_profile, 0, 0);
358	Texture t("o.jpg");
359	g_Texture = cgGetNamedParameter(fsh, "Texture"); // the texture cg-warper ;)
360	cgGLSetTextureParameter(g_Texture, t.texture); // Bind the texture number 999 to g_Texture
361	CheckCgError ();
362	cgGLLoadProgram (fsh);
363	CheckCgError ();
364
365	cgGLBindProgram (vsh);
366	CheckCgError ();
367	cgGLBindProgram (fsh);
368	CheckCgError ();
369
370	/* Loop until done. */
371	start_time = SDL_GetTicks ();
372	frames = 0;
373
374	while (!done)
375	{
376	char *sdl_error;
377	SDL_Event event;
378
379	camera.p = camera.p - camera.d * (camera_velocity_factor * timer.diff) * camera_velocity.z;
380	camera.p = camera.p - camera.u * (camera_velocity_factor * timer.diff) * camera_velocity.y;
381	camera_angle += 30 * camera_velocity_angle * timer.diff;
382	camera.d.z = -cos (camera_angle * 12 / 180.);
383	camera.d.x = sin (camera_angle * 12 / 180.);
384
385	cgGLSetParameter4f (lightpos, camera.p.x, camera.p.y, camera.p.z, 1);
386
387	glBindTexture (GL_TEXTURE_2D, t.texture);
388	cgGLEnableTextureParameter (g_Texture); // Enable the texture parameter
389
390	#if 0
391	static GLfloat ry;
392	ry += 0.001;
393	camera.d.x = cos (ry);
394	camera.d.z = sin (ry);
395	//camera.d.y = sin (ry * 0.1);
396	#endif
397
398	camera.begin ();
399	camera.pass (view::DEPTH);
400	camera.pass (view::LIGHTED);
401	camera.end ();
402
403	SDL_GL_SwapBuffers ();
404	timer.frame ();
405
406	/* Check for error conditions. */
407	gl_error = glGetError ();
408
409	if (gl_error != GL_NO_ERROR) fprintf (stderr, "testgl: OpenGL error: %d\n", gl_error);
410
411	sdl_error = SDL_GetError ();
412
413	if (sdl_error[0] != '\0')
414	{
415	fprintf (stderr, "testgl: SDL error '%s'\n", sdl_error);
416	SDL_ClearError ();
417	}
418
419	/* Allow the user to see what's happening */
420	//SDL_Delay (20);
421
422	/* Check if there's a pending event. */
423	while (SDL_PollEvent (&event))
424	done = HandleEvent (&event);
425
426
427	++frames;
428	}
429
430	/* Print out the frames per second */
431	this_time = SDL_GetTicks ();
432	if (this_time != start_time)
433	{
434	printf ("%2.2f FPS\n",
435	((float) frames / (this_time - start_time)) * 1000.0);
436	}
437
438	if (global_image)
439	{
440	SDL_FreeSurface (global_image);
441	global_image = NULL;
442	}
443	if (global_texture)
444	{
445	glDeleteTextures (1, &global_texture);
446	global_texture = 0;
447	}
448
449	/* Destroy our GL context, etc. */
450	SDL_Quit ();
451	return (0);
452	}
453
454	int
455	main (int argc, char *argv[])
456	{
457	int i, logo;
458	int numtests;
459	int bpp = 0;
460	int slowly;
461	float gamma = 0.0;
462	int noframe = 0;
463	int fsaa = 0;
464
465	logo = 0;
466	slowly = 0;
467	numtests = 1;
468	for (i = 1; argv[i]; ++i)
469	{
470	if (strcmp (argv[i], "-twice") == 0)
471	{
472	++numtests;
473	}
474	if (strcmp (argv[i], "-slow") == 0)
475	{
476	slowly = 1;
477	}
478	if (strcmp (argv[i], "-bpp") == 0)
479	{
480	bpp = atoi (argv[++i]);
481	}
482	if (strcmp (argv[i], "-gamma") == 0)
483	{
484	gamma = (float) atof (argv[++i]);
485	}
486	if (strcmp (argv[i], "-noframe") == 0)
487	{
488	noframe = 1;
489	}
490	if (strcmp (argv[i], "-fsaa") == 0)
491	{
492	++fsaa;
493	}
494	if (strncmp (argv[i], "-h", 2) == 0)
495	{
496	printf
497	("Usage: %s [-twice] [-logo] [-slow] [-bpp n] [-gamma n] [-noframe] [-fsaa]\n",
498	argv[0]);
499	exit (0);
500	}
501	}
502
503	for (i = 0; i < numtests; ++i)
504	RunGLTest (argc, argv, logo, slowly, bpp, gamma, noframe, fsaa);
505
506	return 0;
507	}