libgender/test.C

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

#include "SDL.h"

#include "SDL_opengl.h"

/* Undefine this if you want a flat cube instead of a rainbow cube */
#define SHADED_CUBE

/* Define this to be the name of the logo image to use with -logo */
#define LOGO_FILE       "icon.bmp"

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

#include "entity.h"

#include "txtprt_import.h"

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

view camera;
vec3 camera_velocity;
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->m.translate (vec3 (0, -1, -i*5));
      f->show ();
    }

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

  glMatrixMode (GL_MODELVIEW);
  glLoadIdentity ();

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

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

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

  draw_context c (camera);

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

      glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

      camera.p.x += (camera_velocity_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:	1.20
Committed:	Mon Oct 4 16:03:49 2004 UTC (19 years, 8 months ago) by root
Content type:	text/plain
Branch:	MAIN
Changes since 1.19:	+2 -1 lines
Log Message:	added some simple scheduler and events
#	User	Rev	Content
1	root	1.1	#include <stdlib.h>
2			#include <stdio.h>
3			#include <string.h>
4			#include <math.h>
5
6			#include "SDL.h"
7
8			#include "SDL_opengl.h"
9
10			/* Undefine this if you want a flat cube instead of a rainbow cube */
11			#define SHADED_CUBE
12
13			/* Define this to be the name of the logo image to use with -logo */
14			#define LOGO_FILE "icon.bmp"
15
16			static SDL_Surface *global_image = NULL;
17			static GLuint global_texture = 0;
18
19	root	1.2	#include "entity.h"
20
21	root	1.4	#include "txtprt_import.h"
22
23	root	1.1	/**********************************************************************/
24
25	root	1.6	view camera;
26	root	1.18	vec3 camera_velocity;
27	root	1.20	float camera_velocity_factor = 10;
28	root	1.6
29	root	1.1	void
30			HotKey_ToggleFullScreen (void)
31			{
32			SDL_Surface *screen;
33
34			screen = SDL_GetVideoSurface ();
35			if (SDL_WM_ToggleFullScreen (screen))
36	root	1.5	printf ("Toggled fullscreen mode - now %s\n",
37			(screen->flags & SDL_FULLSCREEN) ? "fullscreen" : "windowed");
38	root	1.1	else
39	root	1.5	printf ("Unable to toggle fullscreen mode\n");
40	root	1.1	}
41
42			void
43			HotKey_ToggleGrab (void)
44			{
45			SDL_GrabMode mode;
46
47			printf ("Ctrl-G: toggling input grab!\n");
48			mode = SDL_WM_GrabInput (SDL_GRAB_QUERY);
49			if (mode == SDL_GRAB_ON)
50	root	1.5	printf ("Grab was on\n");
51	root	1.1	else
52	root	1.5	printf ("Grab was off\n");
53	root	1.1
54			mode = SDL_WM_GrabInput (mode ? SDL_GRAB_OFF : SDL_GRAB_ON);
55			if (mode == SDL_GRAB_ON)
56	root	1.5	printf ("Grab is now on\n");
57	root	1.1	else
58	root	1.5	printf ("Grab is now off\n");
59	root	1.1	}
60
61			void
62			HotKey_Iconify (void)
63			{
64			printf ("Ctrl-Z: iconifying window!\n");
65			SDL_WM_IconifyWindow ();
66			}
67
68			int
69			HandleEvent (SDL_Event * event)
70			{
71			int done;
72
73			done = 0;
74			switch (event->type)
75			{
76			case SDL_ACTIVEEVENT:
77			/* See what happened */
78			printf ("app %s ", event->active.gain ? "gained" : "lost");
79			if (event->active.state & SDL_APPACTIVE)
80			{
81			printf ("active ");
82			}
83			else if (event->active.state & SDL_APPMOUSEFOCUS)
84			{
85			printf ("mouse ");
86			}
87			else if (event->active.state & SDL_APPINPUTFOCUS)
88			{
89			printf ("input ");
90			}
91
92			printf ("focus\n");
93			break;
94
95	root	1.18	#define VELOCITY 10
96	root	1.1	case SDL_KEYDOWN:
97	root	1.19	if (event->key.keysym.sym == SDLK_UP) camera_velocity.z--;
98			if (event->key.keysym.sym == SDLK_DOWN) camera_velocity.z++;
99			if (event->key.keysym.sym == SDLK_LEFT) camera_velocity.x--;
100			if (event->key.keysym.sym == SDLK_RIGHT) camera_velocity.x++;
101			if (event->key.keysym.sym == SDLK_a) camera_velocity.y--;
102			if (event->key.keysym.sym == SDLK_s) camera_velocity.y++;
103			if (event->key.keysym.sym == SDLK_v) camera_velocity_factor *= 1.5;
104			if (event->key.keysym.sym == SDLK_b) camera_velocity_factor /= 1.5;
105	root	1.6
106	root	1.1	if (event->key.keysym.sym == SDLK_ESCAPE)
107	root	1.6	done = 1;
108	root	1.1
109			if ((event->key.keysym.sym == SDLK_g) &&
110			(event->key.keysym.mod & KMOD_CTRL))
111	root	1.6	HotKey_ToggleGrab ();
112	root	1.1
113			if ((event->key.keysym.sym == SDLK_z) &&
114			(event->key.keysym.mod & KMOD_CTRL))
115	root	1.6	HotKey_Iconify ();
116	root	1.1
117			if ((event->key.keysym.sym == SDLK_RETURN) &&
118			(event->key.keysym.mod & KMOD_ALT))
119	root	1.6	HotKey_ToggleFullScreen ();
120	root	1.1
121			break;
122
123	root	1.18	case SDL_KEYUP:
124	root	1.19	if (event->key.keysym.sym == SDLK_UP) camera_velocity.z++;
125			if (event->key.keysym.sym == SDLK_DOWN) camera_velocity.z--;
126			if (event->key.keysym.sym == SDLK_LEFT) camera_velocity.x++;
127			if (event->key.keysym.sym == SDLK_RIGHT) camera_velocity.x--;
128			if (event->key.keysym.sym == SDLK_a) camera_velocity.y++;
129			if (event->key.keysym.sym == SDLK_s) camera_velocity.y--;
130	root	1.18	break;
131
132	root	1.1	case SDL_QUIT:
133			done = 1;
134			break;
135			}
136
137			return (done);
138			}
139
140			/* Quick utility function for texture creation */
141			static int
142			power_of_two (int input)
143			{
144			int value = 1;
145
146			while (value < input)
147			{
148			value <<= 1;
149			}
150			return value;
151			}
152
153			GLuint
154			SDL_GL_LoadTexture (SDL_Surface * surface, GLfloat * texcoord)
155			{
156			GLuint texture;
157			int w, h;
158			SDL_Surface *image;
159			SDL_Rect area;
160			Uint32 saved_flags;
161			Uint8 saved_alpha;
162
163			/* Use the surface width and height expanded to powers of 2 */
164			w = power_of_two (surface->w);
165			h = power_of_two (surface->h);
166			texcoord[0] = 0.0f; /* Min X */
167			texcoord[1] = 0.0f; /* Min Y */
168			texcoord[2] = (GLfloat) surface->w / w; /* Max X */
169			texcoord[3] = (GLfloat) surface->h / h; /* Max Y */
170
171			image = SDL_CreateRGBSurface (SDL_SWSURFACE, w, h, 32,
172			#if SDL_BYTEORDER == SDL_LIL_ENDIAN /* OpenGL RGBA masks */
173			0x000000FF, 0x0000FF00, 0x00FF0000, 0xFF000000
174			#else
175			0xFF000000, 0x00FF0000, 0x0000FF00, 0x000000FF
176			#endif
177			);
178			if (image == NULL)
179			{
180			return 0;
181			}
182
183			/* Save the alpha blending attributes */
184			saved_flags = surface->flags & (SDL_SRCALPHA \| SDL_RLEACCELOK);
185			saved_alpha = surface->format->alpha;
186			if ((saved_flags & SDL_SRCALPHA) == SDL_SRCALPHA)
187			{
188			SDL_SetAlpha (surface, 0, 0);
189			}
190
191			/* Copy the surface into the GL texture image */
192			area.x = 0;
193			area.y = 0;
194			area.w = surface->w;
195			area.h = surface->h;
196			SDL_BlitSurface (surface, &area, image, &area);
197
198			/* Restore the alpha blending attributes */
199			if ((saved_flags & SDL_SRCALPHA) == SDL_SRCALPHA)
200			{
201			SDL_SetAlpha (surface, saved_flags, saved_alpha);
202			}
203
204			/* Create an OpenGL texture for the image */
205			glGenTextures (1, &texture);
206			glBindTexture (GL_TEXTURE_2D, texture);
207			glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
208			glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
209			glTexImage2D (GL_TEXTURE_2D,
210			0,
211			GL_RGBA, w, h, 0, GL_RGBA, GL_UNSIGNED_BYTE, image->pixels);
212			SDL_FreeSurface (image); /* No longer needed */
213
214			return texture;
215			}
216
217			int
218			RunGLTest (int argc, char *argv[],
219			int logo, int slowly, int bpp, float gamma, int noframe, int fsaa)
220			{
221			int i;
222			int rgb_size[3];
223			int w = 640;
224			int h = 480;
225			int done = 0;
226			int frames;
227			Uint32 start_time, this_time;
228	root	1.2	Uint32 video_flags;
229	root	1.1	int value;
230
231			if (SDL_Init (SDL_INIT_VIDEO) < 0)
232			{
233			fprintf (stderr, "Couldn't initialize SDL: %s\n", SDL_GetError ());
234			exit (1);
235			}
236
237			/* See if we should detect the display depth */
238			if (bpp == 0)
239			{
240			if (SDL_GetVideoInfo ()->vfmt->BitsPerPixel <= 8)
241	root	1.3	bpp = 8;
242	root	1.1	else
243	root	1.3	bpp = 16; /* More doesn't seem to work */
244	root	1.1	}
245
246	root	1.2	video_flags = SDL_OPENGL;
247
248	root	1.1	for (i = 1; argv[i]; ++i)
249	root	1.3	if (strcmp (argv[1], "-fullscreen") == 0)
250			video_flags \|= SDL_FULLSCREEN;
251	root	1.1
252			if (noframe)
253	root	1.3	video_flags \|= SDL_NOFRAME;
254	root	1.1
255			/* Initialize the display */
256			switch (bpp)
257			{
258			case 8:
259			rgb_size[0] = 3;
260			rgb_size[1] = 3;
261			rgb_size[2] = 2;
262			break;
263	root	1.3
264	root	1.1	case 15:
265			case 16:
266			rgb_size[0] = 5;
267			rgb_size[1] = 5;
268			rgb_size[2] = 5;
269			break;
270	root	1.3
271	root	1.1	default:
272			rgb_size[0] = 8;
273			rgb_size[1] = 8;
274			rgb_size[2] = 8;
275			break;
276			}
277	root	1.18
278	root	1.1	SDL_GL_SetAttribute (SDL_GL_RED_SIZE, rgb_size[0]);
279			SDL_GL_SetAttribute (SDL_GL_GREEN_SIZE, rgb_size[1]);
280			SDL_GL_SetAttribute (SDL_GL_BLUE_SIZE, rgb_size[2]);
281			SDL_GL_SetAttribute (SDL_GL_DEPTH_SIZE, 16);
282			SDL_GL_SetAttribute (SDL_GL_DOUBLEBUFFER, 1);
283	root	1.3
284	root	1.1	if (fsaa)
285			{
286			SDL_GL_SetAttribute (SDL_GL_MULTISAMPLEBUFFERS, 1);
287			SDL_GL_SetAttribute (SDL_GL_MULTISAMPLESAMPLES, fsaa);
288			}
289	root	1.3
290	root	1.1	if (SDL_SetVideoMode (w, h, bpp, video_flags) == NULL)
291			{
292			fprintf (stderr, "Couldn't set GL mode: %s\n", SDL_GetError ());
293			SDL_Quit ();
294			exit (1);
295			}
296
297			printf ("Screen BPP: %d\n", SDL_GetVideoSurface ()->format->BitsPerPixel);
298			printf ("\n");
299			printf ("Vendor : %s\n", glGetString (GL_VENDOR));
300			printf ("Renderer : %s\n", glGetString (GL_RENDERER));
301			printf ("Version : %s\n", glGetString (GL_VERSION));
302			printf ("Extensions : %s\n", glGetString (GL_EXTENSIONS));
303			printf ("\n");
304
305			SDL_GL_GetAttribute (SDL_GL_RED_SIZE, &value);
306			printf ("SDL_GL_RED_SIZE: requested %d, got %d\n", rgb_size[0], value);
307			SDL_GL_GetAttribute (SDL_GL_GREEN_SIZE, &value);
308			printf ("SDL_GL_GREEN_SIZE: requested %d, got %d\n", rgb_size[1], value);
309			SDL_GL_GetAttribute (SDL_GL_BLUE_SIZE, &value);
310			printf ("SDL_GL_BLUE_SIZE: requested %d, got %d\n", rgb_size[2], value);
311			SDL_GL_GetAttribute (SDL_GL_DEPTH_SIZE, &value);
312			printf ("SDL_GL_DEPTH_SIZE: requested %d, got %d\n", bpp, value);
313			SDL_GL_GetAttribute (SDL_GL_DOUBLEBUFFER, &value);
314			printf ("SDL_GL_DOUBLEBUFFER: requested 1, got %d\n", value);
315	root	1.3
316	root	1.1	if (fsaa)
317			{
318			SDL_GL_GetAttribute (SDL_GL_MULTISAMPLEBUFFERS, &value);
319			printf ("SDL_GL_MULTISAMPLEBUFFERS: requested 1, got %d\n", value);
320			SDL_GL_GetAttribute (SDL_GL_MULTISAMPLESAMPLES, &value);
321			printf ("SDL_GL_MULTISAMPLESAMPLES: requested %d, got %d\n", fsaa,
322			value);
323			}
324
325			/* Set the window manager title bar */
326	root	1.12	SDL_WM_SetCaption ("libgender rendering test", "gendertest");
327	root	1.1
328			/* Set the gamma for the window */
329			if (gamma != 0.0)
330	root	1.3	SDL_SetGamma (gamma, gamma, gamma);
331	root	1.1
332	root	1.17	// load a entity
333			for (int i = 0; i < 7; i++)
334			{
335			txtprt_parser p;
336	root	1.18	entity_transform *f = new entity_transform;
337	root	1.17	entity *e;
338			try
339			{
340			e = p.read ("test.blasc");
341			} catch (txtprt_i_exception & e)
342			{
343			cout << "ERR: " << e.msg << endl;
344			}
345			f->set (e);
346	root	1.18	f->m.translate (vec3 (0, -1, -i*5));
347	root	1.17	f->show ();
348			}
349
350	root	1.13	camera.orig.x = camera.orig.y = camera.orig.z = 0;
351	root	1.6	camera.p = point (0, 0, 10);
352			camera.d = vec3 (0, 0, -1);
353			camera.u = vec3 (0, 1, 0);
354			camera.w = w; camera.h = h;
355			camera.fov = 90;
356	root	1.1
357			glMatrixMode (GL_MODELVIEW);
358			glLoadIdentity ();
359
360	root	1.16	glEnable (GL_CULL_FACE);
361	root	1.1	glEnable (GL_DEPTH_TEST);
362	root	1.11	glShadeModel (GL_SMOOTH);
363	root	1.6
364	root	1.3	glEnable (GL_LIGHTING);
365	root	1.9	//GLfloat lightc[4] = { 1, 0.1, 0.1, 1 };
366	root	1.6	//glLightf (GL_LIGHT0, GL_QUADRATIC_ATTENUATION);
367	root	1.9	//glLightfv (GL_LIGHT0, GL_DIFFUSE, lightc);
368	root	1.6	glEnable (GL_LIGHT0);
369	root	1.1
370			/* Loop until done. */
371			start_time = SDL_GetTicks ();
372			frames = 0;
373	root	1.16
374			draw_context c (camera);
375
376	root	1.1	while (!done)
377			{
378			GLenum gl_error;
379			char *sdl_error;
380			SDL_Event event;
381
382			glClear (GL_COLOR_BUFFER_BIT \| GL_DEPTH_BUFFER_BIT);
383
384	root	1.19	camera.p.x += (camera_velocity_factor * camera_velocity.x) * timer.diff;
385			camera.p.y += (camera_velocity_factor * camera_velocity.y) * timer.diff;
386			camera.p.z += (camera_velocity_factor * camera_velocity.z) * timer.diff;
387	root	1.18
388	root	1.6	GLfloat lightp[4];
389			lightp[0] = camera.p.x;
390			lightp[1] = camera.p.y;
391			lightp[2] = camera.p.z;
392			lightp[3] = 1;
393			glLightfv (GL_LIGHT0, GL_POSITION, lightp);
394
395	root	1.5	#if 0
396	root	1.3	static GLfloat ry;
397	root	1.13	ry += 0.001;
398			camera.d.x = cos (ry);
399			camera.d.z = sin (ry);
400			//camera.d.y = sin (ry * 0.1);
401	root	1.5	#endif
402	root	1.1
403	root	1.16	c.mode = draw_context::DEPTH;
404			camera.draw (c);
405	root	1.9	c.mode = draw_context::LIGHTED;
406	root	1.6	camera.draw (c);
407	root	1.1
408			SDL_GL_SwapBuffers ();
409	root	1.15	timer.frame ();
410	root	1.1
411			/* Check for error conditions. */
412			gl_error = glGetError ();
413
414			if (gl_error != GL_NO_ERROR)
415	root	1.3	fprintf (stderr, "testgl: OpenGL error: %d\n", gl_error);
416	root	1.1
417			sdl_error = SDL_GetError ();
418
419			if (sdl_error[0] != '\0')
420			{
421			fprintf (stderr, "testgl: SDL error '%s'\n", sdl_error);
422			SDL_ClearError ();
423			}
424
425			/* Allow the user to see what's happening */
426	root	1.9	//SDL_Delay (20);
427	root	1.1
428			/* Check if there's a pending event. */
429			while (SDL_PollEvent (&event))
430	root	1.18	done = HandleEvent (&event);
431	root	1.20
432	root	1.18
433	root	1.1	++frames;
434			}
435
436			/* Print out the frames per second */
437			this_time = SDL_GetTicks ();
438			if (this_time != start_time)
439			{
440			printf ("%2.2f FPS\n",
441			((float) frames / (this_time - start_time)) * 1000.0);
442			}
443
444			if (global_image)
445			{
446			SDL_FreeSurface (global_image);
447			global_image = NULL;
448			}
449			if (global_texture)
450			{
451			glDeleteTextures (1, &global_texture);
452			global_texture = 0;
453			}
454
455			/* Destroy our GL context, etc. */
456			SDL_Quit ();
457			return (0);
458			}
459
460			int
461			main (int argc, char *argv[])
462			{
463			int i, logo;
464			int numtests;
465			int bpp = 0;
466			int slowly;
467			float gamma = 0.0;
468			int noframe = 0;
469			int fsaa = 0;
470	root	1.4
471	root	1.1	logo = 0;
472			slowly = 0;
473			numtests = 1;
474			for (i = 1; argv[i]; ++i)
475			{
476			if (strcmp (argv[i], "-twice") == 0)
477			{
478			++numtests;
479			}
480			if (strcmp (argv[i], "-slow") == 0)
481			{
482			slowly = 1;
483			}
484			if (strcmp (argv[i], "-bpp") == 0)
485			{
486			bpp = atoi (argv[++i]);
487			}
488			if (strcmp (argv[i], "-gamma") == 0)
489			{
490			gamma = (float) atof (argv[++i]);
491			}
492			if (strcmp (argv[i], "-noframe") == 0)
493			{
494			noframe = 1;
495			}
496			if (strcmp (argv[i], "-fsaa") == 0)
497			{
498			++fsaa;
499			}
500			if (strncmp (argv[i], "-h", 2) == 0)
501			{
502			printf
503			("Usage: %s [-twice] [-logo] [-slow] [-bpp n] [-gamma n] [-noframe] [-fsaa]\n",
504			argv[0]);
505			exit (0);
506			}
507			}
508	root	1.17
509	root	1.1	for (i = 0; i < numtests; ++i)
510	root	1.17	RunGLTest (argc, argv, logo, slowly, bpp, gamma, noframe, fsaa);
511
512	root	1.1	return 0;
513			}