libgender/test.C

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

#include "opengl.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"

#include "shader.h"

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

view camera;
vec3 camera_velocity;
float camera_angle, camera_angle2, camera_velocity_angle, camera_velocity_angle2;
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_PAGEUP)   camera_velocity_angle2++;
      if (event->key.keysym.sym == SDLK_PAGEDOWN) camera_velocity_angle2--;
      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_PAGEUP)   camera_velocity_angle2--;
      if (event->key.keysym.sym == SDLK_PAGEDOWN) camera_velocity_angle2++;
      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 < 10; x++)
    {
      for (z = 0; z < 10; z++)
        {
          vector<vertex_t2f_n3f_v3f> pts;
          pts.push_back (vertex_t2f_n3f_v3f (point (   0, 0,    0), vec3 (0, 1, 0), tex2 (0, 0)));
          pts.push_back (vertex_t2f_n3f_v3f (point (   0, 0, size), vec3 (0, 1, 0), tex2 (0, 1)));
          pts.push_back (vertex_t2f_n3f_v3f (point (size, 0, size), vec3 (0, 1, 0), tex2 (1, 1)));
          pts.push_back (vertex_t2f_n3f_v3f (point (size, 0,    0), vec3 (0, 1, 0), tex2 (1, 0)));

          geometry_quads *q = new geometry_quads;
          //q->m = new simple_material;
          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 ();
}

void fisch (vec3 center, GLfloat radius, int depth)
{
  entity *planet = new entity (new geometry_sphere (radius));
  planet->move (center);
  planet->show ();

  if (--depth)
    {
      GLfloat r2 = radius * .1F;
      GLfloat r3 = radius + r2;

      fisch (center + vec3 (r3, 0, 0), r2, depth);
      fisch (center + vec3 (0, 0, r3), r2, depth);
      fisch (center + vec3 (-r3, 0, 0), r2, depth);
    }
}

extern void draw_level ();
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 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, 24);
  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);

  testmat = new test_material;

#if 0
  entity *planet = new entity (new geometry_sphere (10));
  planet->move (vec3 (0, 0, -20));
  planet->show ();
#endif

  for (int i = 0; i < 20; 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 ();
    }

#if 0
    {
      fisch (vec3 (0, 0, -2e9), 1e9, 8);
      //entity *planet = new entity (new geometry_sphere (1e9));
      //planet->move (vec3 (0, 0, -1.5e9));
      //planet->show ();
    }

    {
      entity *planet = new entity (new geometry_sphere (4e15));
      planet->move (vec3 (0, 0, 1e17));
      planet->show ();
    }

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


  {
    geometry_heightfield *hf = new geometry_heightfield (100000., 100000.);
    entity *e = new entity (hf);
    e->move (vec3 (-100000, -100000 * 0.01, -100000));
    e->show ();
  }

  //draw_test_nurb ();
#endif

  //camera.orig.x = 108; camera.orig.y = 0; camera.orig.z = -368;
  camera.orig.x = 0; camera.orig.y = 0; 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 = 40.;

  glEnable (GL_CULL_FACE);
  glDisable (GL_ALPHA_TEST);
  glDisable (GL_BLEND);

  /* Loop until done. */
  frames = 0;

  linear_light mylight;
  mylight.radius = 100000;
  mylight.c = colour (1., 1, 1, 1.);
  mylight.intensity = 1.2;

  pass pass_light (&mylight);

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

      camera_angle  += 180 * camera_velocity_angle  * timer.diff;
      camera_angle2 += 180 * camera_velocity_angle2 * timer.diff;

      vec3 geradeaus = matrix::rotation (-camera_angle, vec3 (0, 1, 0)) * vec3 (0, 0, -1);
      vec3 right     = matrix::rotation (90., vec3 (0, 1, 0)) * geradeaus;

      camera.d = matrix::rotation (camera_angle2, right) * geradeaus;
      camera.u = cross (camera.d, right);

      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;

      mylight.orig = camera.orig;
      mylight.p = camera.p;

      //mylight.intensity = max (sinf (timer.now) + 1.2F, 0.2F);
      
      camera.begin ();
      camera.render (view::DEPTH, pass_depth);
      camera.render (view::POSTDEPTH, pass_depth);
      camera.render (view::LIGHTED, pass_light);
      camera.end ();

      SDL_GL_SwapBuffers ();
      timer.frame ();

#if 0
      /* 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 (40);
#endif

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

      ++frames;
    }

  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:	1.79
Committed:	Thu Nov 4 03:58:32 2004 UTC (19 years, 7 months ago) by root
Content type:	text/plain
Branch:	MAIN
Changes since 1.78:	+6 -2 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 "opengl.h"
7
8	#include "SDL.h"
9	#include "SDL_opengl.h"
10
11	static SDL_Surface *global_image = NULL;
12	static GLuint global_texture = 0;
13
14	#include "util.h"
15	#include "entity.h"
16	#include "txtprt_import.h"
17
18	#include "shader.h"
19
20	/**********************************************************************/
21
22	view camera;
23	vec3 camera_velocity;
24	float camera_angle, camera_angle2, camera_velocity_angle, camera_velocity_angle2;
25	float camera_velocity_factor = 80;
26
27	void
28	HotKey_ToggleFullScreen (void)
29	{
30	SDL_Surface *screen;
31
32	screen = SDL_GetVideoSurface ();
33
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
49	if (mode == SDL_GRAB_ON)
50	printf ("Grab was on\n");
51	else
52	printf ("Grab was off\n");
53
54	mode = SDL_WM_GrabInput (mode ? SDL_GRAB_OFF : SDL_GRAB_ON);
55
56	if (mode == SDL_GRAB_ON)
57	printf ("Grab is now on\n");
58	else
59	printf ("Grab is now off\n");
60	}
61
62	void
63	HotKey_Iconify (void)
64	{
65	printf ("Ctrl-Z: iconifying window!\n");
66	SDL_WM_IconifyWindow ();
67	}
68
69	int
70	HandleEvent (SDL_Event * event)
71	{
72	int done;
73
74	done = 0;
75
76	switch (event->type)
77	{
78	case SDL_ACTIVEEVENT:
79	/* See what happened */
80	printf ("app %s ", event->active.gain ? "gained" : "lost");
81	if (event->active.state & SDL_APPACTIVE)
82	printf ("active ");
83	else if (event->active.state & SDL_APPMOUSEFOCUS)
84	printf ("mouse ");
85	else if (event->active.state & SDL_APPINPUTFOCUS)
86	printf ("input ");
87
88	printf ("focus\n");
89	break;
90
91	case SDL_KEYDOWN:
92	if (event->key.keysym.sym == SDLK_UP) camera_velocity.z--;
93	if (event->key.keysym.sym == SDLK_DOWN) camera_velocity.z++;
94	if (event->key.keysym.sym == SDLK_RIGHT) camera_velocity_angle++;
95	if (event->key.keysym.sym == SDLK_LEFT) camera_velocity_angle--;
96	if (event->key.keysym.sym == SDLK_PAGEUP) camera_velocity_angle2++;
97	if (event->key.keysym.sym == SDLK_PAGEDOWN) camera_velocity_angle2--;
98	if (event->key.keysym.sym == SDLK_e) camera_velocity.y--;
99	if (event->key.keysym.sym == SDLK_q) camera_velocity.y++;
100	if (event->key.keysym.sym == SDLK_v) camera_velocity_factor *= 1.5;
101	if (event->key.keysym.sym == SDLK_b) camera_velocity_factor /= 1.5;
102
103	if (event->key.keysym.sym == SDLK_ESCAPE)
104	done = 1;
105
106	if ((event->key.keysym.sym == SDLK_g) &&
107	(event->key.keysym.mod & KMOD_CTRL))
108	HotKey_ToggleGrab ();
109
110	if ((event->key.keysym.sym == SDLK_z) &&
111	(event->key.keysym.mod & KMOD_CTRL))
112	HotKey_Iconify ();
113
114	if ((event->key.keysym.sym == SDLK_RETURN) &&
115	(event->key.keysym.mod & KMOD_ALT))
116	HotKey_ToggleFullScreen ();
117
118	break;
119
120	case SDL_KEYUP:
121	if (event->key.keysym.sym == SDLK_UP) camera_velocity.z++;
122	if (event->key.keysym.sym == SDLK_DOWN) camera_velocity.z--;
123	if (event->key.keysym.sym == SDLK_LEFT) camera_velocity_angle++;
124	if (event->key.keysym.sym == SDLK_RIGHT) camera_velocity_angle--;
125	if (event->key.keysym.sym == SDLK_PAGEUP) camera_velocity_angle2--;
126	if (event->key.keysym.sym == SDLK_PAGEDOWN) camera_velocity_angle2++;
127	if (event->key.keysym.sym == SDLK_e) camera_velocity.y++;
128	if (event->key.keysym.sym == SDLK_q) camera_velocity.y--;
129	break;
130
131	case SDL_QUIT:
132	done = 1;
133	break;
134	}
135
136	return (done);
137	}
138
139	void draw_floor (int size, int dx, int dy, int dz)
140	{
141	int x, z, ry;
142
143	for (x = 0; x < 10; x++)
144	{
145	for (z = 0; z < 10; z++)
146	{
147	vector<vertex_t2f_n3f_v3f> pts;
148	pts.push_back (vertex_t2f_n3f_v3f (point ( 0, 0, 0), vec3 (0, 1, 0), tex2 (0, 0)));
149	pts.push_back (vertex_t2f_n3f_v3f (point ( 0, 0, size), vec3 (0, 1, 0), tex2 (0, 1)));
150	pts.push_back (vertex_t2f_n3f_v3f (point (size, 0, size), vec3 (0, 1, 0), tex2 (1, 1)));
151	pts.push_back (vertex_t2f_n3f_v3f (point (size, 0, 0), vec3 (0, 1, 0), tex2 (1, 0)));
152
153	geometry_quads *q = new geometry_quads;
154	//q->m = new simple_material;
155	q->set (pts);
156	entity *e = new entity (q);
157	e->move (vec3 (dx + x * size, dy, dz + z * size));
158	e->show ();
159	}
160	}
161	}
162
163	void draw_test_nurb ()
164	{
165	geometry_nurbs *q = new geometry_nurbs;
166	q->set ();
167	entity *e = new entity (q);
168	e->move (vec3 (10, 3, -4));
169	e->show ();
170	}
171
172	void fisch (vec3 center, GLfloat radius, int depth)
173	{
174	entity *planet = new entity (new geometry_sphere (radius));
175	planet->move (center);
176	planet->show ();
177
178	if (--depth)
179	{
180	GLfloat r2 = radius * .1F;
181	GLfloat r3 = radius + r2;
182
183	fisch (center + vec3 (r3, 0, 0), r2, depth);
184	fisch (center + vec3 (0, 0, r3), r2, depth);
185	fisch (center + vec3 (-r3, 0, 0), r2, depth);
186	}
187	}
188
189	extern void draw_level ();
190	int
191	RunGLTest (int argc, char *argv[],
192	int logo, int slowly, int bpp, float gamma, int noframe, int fsaa)
193	{
194	int i;
195	int rgb_size[3];
196	int w = 640;
197	int h = 480;
198	int done = 0;
199	int frames;
200	Uint32 video_flags;
201	int value;
202	GLenum gl_error;
203
204	if (SDL_Init (SDL_INIT_VIDEO) < 0)
205	{
206	fprintf (stderr, "Couldn't initialize SDL: %s\n", SDL_GetError ());
207	exit (1);
208	}
209
210	/* See if we should detect the display depth */
211	if (bpp == 0)
212	{
213	if (SDL_GetVideoInfo ()->vfmt->BitsPerPixel <= 8)
214	bpp = 8;
215	else
216	bpp = 16; /* More doesn't seem to work */
217	}
218
219	video_flags = SDL_OPENGL;
220
221	for (i = 1; argv[i]; ++i)
222	if (strcmp (argv[1], "-fullscreen") == 0)
223	video_flags \|= SDL_FULLSCREEN;
224
225	if (noframe)
226	video_flags \|= SDL_NOFRAME;
227
228	/* Initialize the display */
229	switch (bpp)
230	{
231	case 8:
232	rgb_size[0] = 3;
233	rgb_size[1] = 3;
234	rgb_size[2] = 2;
235	break;
236
237	case 15:
238	case 16:
239	rgb_size[0] = 5;
240	rgb_size[1] = 5;
241	rgb_size[2] = 5;
242	break;
243
244	default:
245	rgb_size[0] = 8;
246	rgb_size[1] = 8;
247	rgb_size[2] = 8;
248	break;
249	}
250
251	SDL_GL_SetAttribute (SDL_GL_RED_SIZE, rgb_size[0]);
252	SDL_GL_SetAttribute (SDL_GL_GREEN_SIZE, rgb_size[1]);
253	SDL_GL_SetAttribute (SDL_GL_BLUE_SIZE, rgb_size[2]);
254	SDL_GL_SetAttribute (SDL_GL_DEPTH_SIZE, 24);
255	SDL_GL_SetAttribute (SDL_GL_DOUBLEBUFFER, 1);
256
257	if (fsaa)
258	{
259	SDL_GL_SetAttribute (SDL_GL_MULTISAMPLEBUFFERS, 1);
260	SDL_GL_SetAttribute (SDL_GL_MULTISAMPLESAMPLES, fsaa);
261	}
262
263	if (SDL_SetVideoMode (w, h, bpp, video_flags) == NULL)
264	{
265	fprintf (stderr, "Couldn't set GL mode: %s\n", SDL_GetError ());
266	SDL_Quit ();
267	exit (1);
268	}
269
270	//printf ("Screen BPP: %d\n", SDL_GetVideoSurface ()->format->BitsPerPixel);
271	//printf ("\n");
272	//printf ("Vendor : %s\n", glGetString (GL_VENDOR));
273	//printf ("Renderer : %s\n", glGetString (GL_RENDERER));
274	//printf ("Version : %s\n", glGetString (GL_VERSION));
275	//printf ("Extensions : %s\n", glGetString (GL_EXTENSIONS));
276	printf ("\n");
277
278	SDL_GL_GetAttribute (SDL_GL_RED_SIZE, &value);
279	printf ("SDL_GL_RED_SIZE: requested %d, got %d\n", rgb_size[0], value);
280	SDL_GL_GetAttribute (SDL_GL_GREEN_SIZE, &value);
281	printf ("SDL_GL_GREEN_SIZE: requested %d, got %d\n", rgb_size[1], value);
282	SDL_GL_GetAttribute (SDL_GL_BLUE_SIZE, &value);
283	printf ("SDL_GL_BLUE_SIZE: requested %d, got %d\n", rgb_size[2], value);
284	SDL_GL_GetAttribute (SDL_GL_DEPTH_SIZE, &value);
285	printf ("SDL_GL_DEPTH_SIZE: requested %d, got %d\n", bpp, value);
286	SDL_GL_GetAttribute (SDL_GL_DOUBLEBUFFER, &value);
287	printf ("SDL_GL_DOUBLEBUFFER: requested 1, got %d\n", value);
288
289	if (fsaa)
290	{
291	SDL_GL_GetAttribute (SDL_GL_MULTISAMPLEBUFFERS, &value);
292	printf ("SDL_GL_MULTISAMPLEBUFFERS: requested 1, got %d\n", value);
293	SDL_GL_GetAttribute (SDL_GL_MULTISAMPLESAMPLES, &value);
294	printf ("SDL_GL_MULTISAMPLESAMPLES: requested %d, got %d\n", fsaa,
295	value);
296	}
297
298	/* Set the window manager title bar */
299	SDL_WM_SetCaption ("libgender rendering test", "gendertest");
300
301	/* Set the gamma for the window */
302	if (gamma != 0.0)
303	SDL_SetGamma (gamma, gamma, gamma);
304
305	testmat = new test_material;
306
307	#if 0
308	entity *planet = new entity (new geometry_sphere (10));
309	planet->move (vec3 (0, 0, -20));
310	planet->show ();
311	#endif
312
313	for (int i = 0; i < 20; i++)
314	{
315	// load a entity
316	txtprt_parser p;
317	geometry *g;
318	try
319	{
320	g = p.read ("test.blasc");
321	}
322	catch (txtprt_i_exception & e)
323	{
324	cout << "ERR: " << e.msg << endl;
325	}
326
327	entity *e = new entity (g);
328	e->move (vec3 (i5, -3, -i10));
329	e->show ();
330	}
331
332	#if 0
333	{
334	fisch (vec3 (0, 0, -2e9), 1e9, 8);
335	//entity *planet = new entity (new geometry_sphere (1e9));
336	//planet->move (vec3 (0, 0, -1.5e9));
337	//planet->show ();
338	}
339
340	{
341	entity *planet = new entity (new geometry_sphere (4e15));
342	planet->move (vec3 (0, 0, 1e17));
343	planet->show ();
344	}
345
346	//draw_floor (10, -500, -10, -1000);
347	draw_level ();
348
349
350	{
351	geometry_heightfield *hf = new geometry_heightfield (100000., 100000.);
352	entity *e = new entity (hf);
353	e->move (vec3 (-100000, -100000 * 0.01, -100000));
354	e->show ();
355	}
356
357	//draw_test_nurb ();
358	#endif
359
360	//camera.orig.x = 108; camera.orig.y = 0; camera.orig.z = -368;
361	camera.orig.x = 0; camera.orig.y = 0; camera.orig.z = 0;
362	camera.p = point (0, 0, 10);
363	camera.d = vec3 (0, 0, -1);
364	camera.u = vec3 (0, 1, 0);
365	camera.w = w; camera.h = h;
366	camera.fov = 40.;
367
368	glEnable (GL_CULL_FACE);
369	glDisable (GL_ALPHA_TEST);
370	glDisable (GL_BLEND);
371
372	/* Loop until done. */
373	frames = 0;
374
375	linear_light mylight;
376	mylight.radius = 100000;
377	mylight.c = colour (1., 1, 1, 1.);
378	mylight.intensity = 1.2;
379
380	pass pass_light (&mylight);
381
382	while (!done)
383	{
384	char *sdl_error;
385	SDL_Event event;
386
387	camera_angle += 180 * camera_velocity_angle * timer.diff;
388	camera_angle2 += 180 * camera_velocity_angle2 * timer.diff;
389
390	vec3 geradeaus = matrix::rotation (-camera_angle, vec3 (0, 1, 0)) * vec3 (0, 0, -1);
391	vec3 right = matrix::rotation (90., vec3 (0, 1, 0)) * geradeaus;
392
393	camera.d = matrix::rotation (camera_angle2, right) * geradeaus;
394	camera.u = cross (camera.d, right);
395
396	camera.p = camera.p - camera.d * (camera_velocity_factor * timer.diff) * camera_velocity.z;
397	camera.p = camera.p - camera.u * (camera_velocity_factor * timer.diff) * camera_velocity.y;
398
399	mylight.orig = camera.orig;
400	mylight.p = camera.p;
401
402	//mylight.intensity = max (sinf (timer.now) + 1.2F, 0.2F);
403
404	camera.begin ();
405	camera.render (view::DEPTH, pass_depth);
406	camera.render (view::POSTDEPTH, pass_depth);
407	camera.render (view::LIGHTED, pass_light);
408	camera.end ();
409
410	SDL_GL_SwapBuffers ();
411	timer.frame ();
412
413	#if 0
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 (40);
429	#endif
430
431	/* Check if there's a pending event. */
432	while (SDL_PollEvent (&event))
433	done = HandleEvent (&event);
434
435	++frames;
436	}
437
438	if (global_image)
439	{
440	SDL_FreeSurface (global_image);
441	global_image = NULL;
442	}
443
444	if (global_texture)
445	{
446	glDeleteTextures (1, &global_texture);
447	global_texture = 0;
448	}
449
450	/* Destroy our GL context, etc. */
451	SDL_Quit ();
452	return (0);
453	}
454	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	}