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 "entity.h"

#include "txtprt_import.h"

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

view camera;
vec3 camera_velocity;
float camera_velocity_factor = 10;

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--;
      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_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--;
      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->update (matrix::translation (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);
  glEnable(GL_VERTEX_PROGRAM_ARB);
  glEnable(GL_FRAGMENT_PROGRAM_ARB);

  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_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;

      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:	1.27
Committed:	Tue Oct 5 06:03:16 2004 UTC (19 years, 8 months ago) by root
Content type:	text/plain
Branch:	MAIN
Changes since 1.26:	+0 -56 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 "entity.h"
13
14	#include "txtprt_import.h"
15
16	/**********************************************************************/
17
18	view camera;
19	vec3 camera_velocity;
20	float camera_velocity_factor = 10;
21
22	void
23	HotKey_ToggleFullScreen (void)
24	{
25	SDL_Surface *screen;
26
27	screen = SDL_GetVideoSurface ();
28	if (SDL_WM_ToggleFullScreen (screen))
29	printf ("Toggled fullscreen mode - now %s\n",
30	(screen->flags & SDL_FULLSCREEN) ? "fullscreen" : "windowed");
31	else
32	printf ("Unable to toggle fullscreen mode\n");
33	}
34
35	void
36	HotKey_ToggleGrab (void)
37	{
38	SDL_GrabMode mode;
39
40	printf ("Ctrl-G: toggling input grab!\n");
41	mode = SDL_WM_GrabInput (SDL_GRAB_QUERY);
42	if (mode == SDL_GRAB_ON)
43	printf ("Grab was on\n");
44	else
45	printf ("Grab was off\n");
46
47	mode = SDL_WM_GrabInput (mode ? SDL_GRAB_OFF : SDL_GRAB_ON);
48	if (mode == SDL_GRAB_ON)
49	printf ("Grab is now on\n");
50	else
51	printf ("Grab is now off\n");
52	}
53
54	void
55	HotKey_Iconify (void)
56	{
57	printf ("Ctrl-Z: iconifying window!\n");
58	SDL_WM_IconifyWindow ();
59	}
60
61	int
62	HandleEvent (SDL_Event * event)
63	{
64	int done;
65
66	done = 0;
67	switch (event->type)
68	{
69	case SDL_ACTIVEEVENT:
70	/* See what happened */
71	printf ("app %s ", event->active.gain ? "gained" : "lost");
72	if (event->active.state & SDL_APPACTIVE)
73	{
74	printf ("active ");
75	}
76	else if (event->active.state & SDL_APPMOUSEFOCUS)
77	{
78	printf ("mouse ");
79	}
80	else if (event->active.state & SDL_APPINPUTFOCUS)
81	{
82	printf ("input ");
83	}
84
85	printf ("focus\n");
86	break;
87
88	#define VELOCITY 10
89	case SDL_KEYDOWN:
90	if (event->key.keysym.sym == SDLK_UP) camera_velocity.z--;
91	if (event->key.keysym.sym == SDLK_DOWN) camera_velocity.z++;
92	if (event->key.keysym.sym == SDLK_LEFT) camera_velocity.x--;
93	if (event->key.keysym.sym == SDLK_RIGHT) camera_velocity.x++;
94	if (event->key.keysym.sym == SDLK_a) camera_velocity.y--;
95	if (event->key.keysym.sym == SDLK_s) camera_velocity.y++;
96	if (event->key.keysym.sym == SDLK_v) camera_velocity_factor *= 1.5;
97	if (event->key.keysym.sym == SDLK_b) camera_velocity_factor /= 1.5;
98
99	if (event->key.keysym.sym == SDLK_ESCAPE)
100	done = 1;
101
102	if ((event->key.keysym.sym == SDLK_g) &&
103	(event->key.keysym.mod & KMOD_CTRL))
104	HotKey_ToggleGrab ();
105
106	if ((event->key.keysym.sym == SDLK_z) &&
107	(event->key.keysym.mod & KMOD_CTRL))
108	HotKey_Iconify ();
109
110	if ((event->key.keysym.sym == SDLK_RETURN) &&
111	(event->key.keysym.mod & KMOD_ALT))
112	HotKey_ToggleFullScreen ();
113
114	break;
115
116	case SDL_KEYUP:
117	if (event->key.keysym.sym == SDLK_UP) camera_velocity.z++;
118	if (event->key.keysym.sym == SDLK_DOWN) camera_velocity.z--;
119	if (event->key.keysym.sym == SDLK_LEFT) camera_velocity.x++;
120	if (event->key.keysym.sym == SDLK_RIGHT) camera_velocity.x--;
121	if (event->key.keysym.sym == SDLK_a) camera_velocity.y++;
122	if (event->key.keysym.sym == SDLK_s) camera_velocity.y--;
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->update (matrix::translation (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	glEnable(GL_VERTEX_PROGRAM_ARB);
356	glEnable(GL_FRAGMENT_PROGRAM_ARB);
357
358	glShadeModel (GL_SMOOTH);
359
360	glEnable (GL_LIGHTING);
361	//GLfloat lightc[4] = { 1, 0.1, 0.1, 1 };
362	//glLightf (GL_LIGHT0, GL_QUADRATIC_ATTENUATION);
363	//glLightfv (GL_LIGHT0, GL_DIFFUSE, lightc);
364	glEnable (GL_LIGHT0);
365
366	/* Loop until done. */
367	start_time = SDL_GetTicks ();
368	frames = 0;
369
370	draw_context c (camera);
371
372	while (!done)
373	{
374	GLenum gl_error;
375	char *sdl_error;
376	SDL_Event event;
377
378	glClear (GL_COLOR_BUFFER_BIT \| GL_DEPTH_BUFFER_BIT);
379
380	camera.p.x += (camera_velocity_factor * camera_velocity.x) * timer.diff;
381	camera.p.y += (camera_velocity_factor * camera_velocity.y) * timer.diff;
382	camera.p.z += (camera_velocity_factor * camera_velocity.z) * timer.diff;
383
384	GLfloat lightp[4];
385	lightp[0] = camera.p.x;
386	lightp[1] = camera.p.y;
387	lightp[2] = camera.p.z;
388	lightp[3] = 1;
389	glLightfv (GL_LIGHT0, GL_POSITION, lightp);
390
391	#if 0
392	static GLfloat ry;
393	ry += 0.001;
394	camera.d.x = cos (ry);
395	camera.d.z = sin (ry);
396	//camera.d.y = sin (ry * 0.1);
397	#endif
398
399	c.mode = draw_context::DEPTH;
400	camera.draw (c);
401	c.mode = draw_context::LIGHTED;
402	camera.draw (c);
403
404	SDL_GL_SwapBuffers ();
405	timer.frame ();
406
407	/* Check for error conditions. */
408	gl_error = glGetError ();
409
410	if (gl_error != GL_NO_ERROR)
411	fprintf (stderr, "testgl: OpenGL error: %d\n", gl_error);
412
413	sdl_error = SDL_GetError ();
414
415	if (sdl_error[0] != '\0')
416	{
417	fprintf (stderr, "testgl: SDL error '%s'\n", sdl_error);
418	SDL_ClearError ();
419	}
420
421	/* Allow the user to see what's happening */
422	//SDL_Delay (20);
423
424	/* Check if there's a pending event. */
425	while (SDL_PollEvent (&event))
426	done = HandleEvent (&event);
427
428
429	++frames;
430	}
431
432	/* Print out the frames per second */
433	this_time = SDL_GetTicks ();
434	if (this_time != start_time)
435	{
436	printf ("%2.2f FPS\n",
437	((float) frames / (this_time - start_time)) * 1000.0);
438	}
439
440	if (global_image)
441	{
442	SDL_FreeSurface (global_image);
443	global_image = NULL;
444	}
445	if (global_texture)
446	{
447	glDeleteTextures (1, &global_texture);
448	global_texture = 0;
449	}
450
451	/* Destroy our GL context, etc. */
452	SDL_Quit ();
453	return (0);
454	}
455
456	int
457	main (int argc, char *argv[])
458	{
459	int i, logo;
460	int numtests;
461	int bpp = 0;
462	int slowly;
463	float gamma = 0.0;
464	int noframe = 0;
465	int fsaa = 0;
466
467	logo = 0;
468	slowly = 0;
469	numtests = 1;
470	for (i = 1; argv[i]; ++i)
471	{
472	if (strcmp (argv[i], "-twice") == 0)
473	{
474	++numtests;
475	}
476	if (strcmp (argv[i], "-slow") == 0)
477	{
478	slowly = 1;
479	}
480	if (strcmp (argv[i], "-bpp") == 0)
481	{
482	bpp = atoi (argv[++i]);
483	}
484	if (strcmp (argv[i], "-gamma") == 0)
485	{
486	gamma = (float) atof (argv[++i]);
487	}
488	if (strcmp (argv[i], "-noframe") == 0)
489	{
490	noframe = 1;
491	}
492	if (strcmp (argv[i], "-fsaa") == 0)
493	{
494	++fsaa;
495	}
496	if (strncmp (argv[i], "-h", 2) == 0)
497	{
498	printf
499	("Usage: %s [-twice] [-logo] [-slow] [-bpp n] [-gamma n] [-noframe] [-fsaa]\n",
500	argv[0]);
501	exit (0);
502	}
503	}
504
505	for (i = 0; i < numtests; ++i)
506	RunGLTest (argc, argv, logo, slowly, bpp, gamma, noframe, fsaa);
507
508	return 0;
509	}