test/testgl.c
author Sam Lantinga <slouken@libsdl.org>
Thu, 27 Apr 2006 07:59:16 +0000
changeset 1736 3b2a92126f4d
parent 1439 4d3bb026cd16
child 1737 eacc5bc01d1c
permissions -rw-r--r--
Implemented bug #2, 117:

Date: Mon, 21 Mar 2005 12:06:14 +0100
From: Per Inge Mathisen
Subject: Re: [SDL] Outstanding patches?

The patch adds support for setting SDL_GL_SWAP_CONTROL to Windows and
X11. In Windows you can also query this enum to check that it is
working, or see what the default is - such functionality does not
exist in GLX. For more information on the standards implemented:
http://oss.sgi.com/projects/ogl-sample/registry/SGI/swap_control.txt
http://oss.sgi.com/projects/ogl-sample/registry/EXT/wgl_swap_control.txt
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <math.h>
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#include "SDL.h"
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#ifdef HAVE_OPENGL
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#include "SDL_opengl.h"
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/* Undefine this if you want a flat cube instead of a rainbow cube */
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#define SHADED_CUBE
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/* Define this to be the name of the logo image to use with -logo */
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#define LOGO_FILE	"icon.bmp"
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/* The SDL_OPENGLBLIT interface is deprecated.
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   The code is still available for benchmark purposes though.
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*/
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static SDL_bool USE_DEPRECATED_OPENGLBLIT = SDL_FALSE;
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static SDL_Surface *global_image = NULL;
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static GLuint global_texture = 0;
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static GLuint cursor_texture = 0;
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/**********************************************************************/
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void HotKey_ToggleFullScreen(void)
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{
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	SDL_Surface *screen;
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	screen = SDL_GetVideoSurface();
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	if ( SDL_WM_ToggleFullScreen(screen) ) {
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		printf("Toggled fullscreen mode - now %s\n",
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		    (screen->flags&SDL_FULLSCREEN) ? "fullscreen" : "windowed");
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	} else {
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		printf("Unable to toggle fullscreen mode\n");
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	}
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}
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void HotKey_ToggleGrab(void)
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{
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	SDL_GrabMode mode;
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	printf("Ctrl-G: toggling input grab!\n");
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	mode = SDL_WM_GrabInput(SDL_GRAB_QUERY);
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	if ( mode == SDL_GRAB_ON ) {
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		printf("Grab was on\n");
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	} else {
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		printf("Grab was off\n");
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	}
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	mode = SDL_WM_GrabInput(!mode);
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	if ( mode == SDL_GRAB_ON ) {
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		printf("Grab is now on\n");
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	} else {
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		printf("Grab is now off\n");
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	}
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}
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void HotKey_Iconify(void)
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{
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	printf("Ctrl-Z: iconifying window!\n");
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	SDL_WM_IconifyWindow();
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}
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int HandleEvent(SDL_Event *event)
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{
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	int done;
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	done = 0;
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	switch( event->type ) {
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	    case SDL_ACTIVEEVENT:
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		/* See what happened */
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		printf( "app %s ", event->active.gain ? "gained" : "lost" );
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		if ( event->active.state & SDL_APPACTIVE ) {
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			printf( "active " );
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		} else if ( event->active.state & SDL_APPMOUSEFOCUS ) {
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			printf( "mouse " );
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		} else if ( event->active.state & SDL_APPINPUTFOCUS ) {
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			printf( "input " );
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		}
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		printf( "focus\n" );
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		break;
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	    case SDL_KEYDOWN:
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		if ( event->key.keysym.sym == SDLK_ESCAPE ) {
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			done = 1;
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		}
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		if ( (event->key.keysym.sym == SDLK_g) &&
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		     (event->key.keysym.mod & KMOD_CTRL) ) {
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			HotKey_ToggleGrab();
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		}
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		if ( (event->key.keysym.sym == SDLK_z) &&
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		     (event->key.keysym.mod & KMOD_CTRL) ) {
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			HotKey_Iconify();
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		}
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		if ( (event->key.keysym.sym == SDLK_RETURN) &&
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		     (event->key.keysym.mod & KMOD_ALT) ) {
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			HotKey_ToggleFullScreen();
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		}
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		printf("key '%s' pressed\n", 
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			SDL_GetKeyName(event->key.keysym.sym));
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		break;
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	    case SDL_QUIT:
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		done = 1;
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		break;
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	}
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	return(done);
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}
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void SDL_GL_Enter2DMode()
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{
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	SDL_Surface *screen = SDL_GetVideoSurface();
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	/* Note, there may be other things you need to change,
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	   depending on how you have your OpenGL state set up.
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	*/
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	glPushAttrib(GL_ENABLE_BIT);
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	glDisable(GL_DEPTH_TEST);
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	glDisable(GL_CULL_FACE);
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	glEnable(GL_TEXTURE_2D);
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	/* This allows alpha blending of 2D textures with the scene */
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	glEnable(GL_BLEND);
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	glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
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	glViewport(0, 0, screen->w, screen->h);
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	glMatrixMode(GL_PROJECTION);
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	glPushMatrix();
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	glLoadIdentity();
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	glOrtho(0.0, (GLdouble)screen->w, (GLdouble)screen->h, 0.0, 0.0, 1.0);
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	glMatrixMode(GL_MODELVIEW);
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	glPushMatrix();
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	glLoadIdentity();
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	glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_DECAL);
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}
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void SDL_GL_Leave2DMode()
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{
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	glMatrixMode(GL_MODELVIEW);
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	glPopMatrix();
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	glMatrixMode(GL_PROJECTION);
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	glPopMatrix();
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	glPopAttrib();
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}
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/* Quick utility function for texture creation */
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static int power_of_two(int input)
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{
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	int value = 1;
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	while ( value < input ) {
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		value <<= 1;
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	}
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	return value;
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}
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GLuint SDL_GL_LoadTexture(SDL_Surface *surface, GLfloat *texcoord)
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{
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	GLuint texture;
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	int w, h;
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	SDL_Surface *image;
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	SDL_Rect area;
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	Uint32 saved_flags;
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	Uint8  saved_alpha;
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	/* Use the surface width and height expanded to powers of 2 */
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	w = power_of_two(surface->w);
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	h = power_of_two(surface->h);
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	texcoord[0] = 0.0f;			/* Min X */
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	texcoord[1] = 0.0f;			/* Min Y */
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	texcoord[2] = (GLfloat)surface->w / w;	/* Max X */
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	texcoord[3] = (GLfloat)surface->h / h;	/* Max Y */
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	image = SDL_CreateRGBSurface(
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			SDL_SWSURFACE,
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			w, h,
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			32,
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#if SDL_BYTEORDER == SDL_LIL_ENDIAN /* OpenGL RGBA masks */
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			0x000000FF, 
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			0x0000FF00, 
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			0x00FF0000, 
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			0xFF000000
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#else
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			0xFF000000,
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			0x00FF0000, 
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			0x0000FF00, 
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			0x000000FF
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#endif
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		       );
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	if ( image == NULL ) {
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		return 0;
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	}
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	/* Save the alpha blending attributes */
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	saved_flags = surface->flags&(SDL_SRCALPHA|SDL_RLEACCELOK);
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	saved_alpha = surface->format->alpha;
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	if ( (saved_flags & SDL_SRCALPHA) == SDL_SRCALPHA ) {
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		SDL_SetAlpha(surface, 0, 0);
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	}
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	/* Copy the surface into the GL texture image */
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	area.x = 0;
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	area.y = 0;
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	area.w = surface->w;
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	area.h = surface->h;
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	SDL_BlitSurface(surface, &area, image, &area);
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	/* Restore the alpha blending attributes */
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	if ( (saved_flags & SDL_SRCALPHA) == SDL_SRCALPHA ) {
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		SDL_SetAlpha(surface, saved_flags, saved_alpha);
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	}
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	/* Create an OpenGL texture for the image */
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	glGenTextures(1, &texture);
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	glBindTexture(GL_TEXTURE_2D, texture);
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	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
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	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
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	glTexImage2D(GL_TEXTURE_2D,
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		     0,
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		     GL_RGBA,
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		     w, h,
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		     0,
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		     GL_RGBA,
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		     GL_UNSIGNED_BYTE,
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		     image->pixels);
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	SDL_FreeSurface(image); /* No longer needed */
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	return texture;
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}
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void DrawLogoCursor(void)
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{
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	static GLfloat texMinX, texMinY;
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	static GLfloat texMaxX, texMaxY;
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	static int w, h;
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	int x, y;
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	if ( ! cursor_texture ) {
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		SDL_Surface *image;
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		GLfloat texcoord[4];
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		/* Load the image (could use SDL_image library here) */
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		image = SDL_LoadBMP(LOGO_FILE);
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		if ( image == NULL ) {
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			return;
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		}
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		w = image->w;
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		h = image->h;
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		/* Convert the image into an OpenGL texture */
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		cursor_texture = SDL_GL_LoadTexture(image, texcoord);
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		/* Make texture coordinates easy to understand */
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		texMinX = texcoord[0];
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		texMinY = texcoord[1];
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		texMaxX = texcoord[2];
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		texMaxY = texcoord[3];
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		/* We don't need the original image anymore */
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		SDL_FreeSurface(image);
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		/* Make sure that the texture conversion is okay */
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		if ( ! cursor_texture ) {
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			return;
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		}
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	}
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	/* Move the image around */
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	SDL_GetMouseState(&x, &y);
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	x -= w/2;
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	y -= h/2;
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	/* Show the image on the screen */
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	SDL_GL_Enter2DMode();
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	glBindTexture(GL_TEXTURE_2D, cursor_texture);
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	glBegin(GL_TRIANGLE_STRIP);
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	glTexCoord2f(texMinX, texMinY); glVertex2i(x,   y  );
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	glTexCoord2f(texMaxX, texMinY); glVertex2i(x+w, y  );
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	glTexCoord2f(texMinX, texMaxY); glVertex2i(x,   y+h);
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	glTexCoord2f(texMaxX, texMaxY); glVertex2i(x+w, y+h);
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	glEnd();
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	SDL_GL_Leave2DMode();
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}
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void DrawLogoTexture(void)
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{
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	static GLfloat texMinX, texMinY;
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	static GLfloat texMaxX, texMaxY;
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	static int x = 0;
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	static int y = 0;
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	static int w, h;
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	static int delta_x = 1;
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	static int delta_y = 1;
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	SDL_Surface *screen = SDL_GetVideoSurface();
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	if ( ! global_texture ) {
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		SDL_Surface *image;
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		GLfloat texcoord[4];
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		/* Load the image (could use SDL_image library here) */
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		image = SDL_LoadBMP(LOGO_FILE);
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		if ( image == NULL ) {
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			return;
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		}
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		w = image->w;
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		h = image->h;
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		/* Convert the image into an OpenGL texture */
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		global_texture = SDL_GL_LoadTexture(image, texcoord);
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		/* Make texture coordinates easy to understand */
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		texMinX = texcoord[0];
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		texMinY = texcoord[1];
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		texMaxX = texcoord[2];
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		texMaxY = texcoord[3];
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		/* We don't need the original image anymore */
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		SDL_FreeSurface(image);
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		/* Make sure that the texture conversion is okay */
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		if ( ! global_texture ) {
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			return;
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		}
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	}
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	/* Move the image around */
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	x += delta_x;
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	if ( x < 0 ) {
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		x = 0;
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		delta_x = -delta_x;
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	} else
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	if ( (x+w) > screen->w ) {
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		x = screen->w-w;
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		delta_x = -delta_x;
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	}
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	y += delta_y;
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	if ( y < 0 ) {
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		y = 0;
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		delta_y = -delta_y;
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	} else
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	if ( (y+h) > screen->h ) {
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		y = screen->h-h;
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		delta_y = -delta_y;
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	}
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	/* Show the image on the screen */
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	SDL_GL_Enter2DMode();
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	glBindTexture(GL_TEXTURE_2D, global_texture);
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	glBegin(GL_TRIANGLE_STRIP);
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	glTexCoord2f(texMinX, texMinY); glVertex2i(x,   y  );
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	glTexCoord2f(texMaxX, texMinY); glVertex2i(x+w, y  );
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	glTexCoord2f(texMinX, texMaxY); glVertex2i(x,   y+h);
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	glTexCoord2f(texMaxX, texMaxY); glVertex2i(x+w, y+h);
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	glEnd();
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	SDL_GL_Leave2DMode();
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}
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/* This code is deprecated, but available for speed comparisons */
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void DrawLogoBlit(void)
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{
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	static int x = 0;
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	static int y = 0;
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	static int w, h;
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	static int delta_x = 1;
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	static int delta_y = 1;
slouken@0
   377
slouken@0
   378
	SDL_Rect dst;
slouken@234
   379
	SDL_Surface *screen = SDL_GetVideoSurface();
slouken@0
   380
slouken@492
   381
	if ( global_image == NULL ) {
slouken@0
   382
		SDL_Surface *temp;
slouken@0
   383
slouken@234
   384
		/* Load the image (could use SDL_image library here) */
slouken@234
   385
		temp = SDL_LoadBMP(LOGO_FILE);
slouken@0
   386
		if ( temp == NULL ) {
slouken@0
   387
			return;
slouken@0
   388
		}
slouken@234
   389
		w = temp->w;
slouken@234
   390
		h = temp->h;
slouken@234
   391
slouken@234
   392
		/* Convert the image into the screen format */
slouken@492
   393
		global_image = SDL_CreateRGBSurface(
slouken@0
   394
				SDL_SWSURFACE,
slouken@234
   395
				w, h,
slouken@234
   396
				screen->format->BitsPerPixel,
slouken@234
   397
				screen->format->Rmask,
slouken@234
   398
				screen->format->Gmask,
slouken@234
   399
				screen->format->Bmask,
slouken@234
   400
				screen->format->Amask);
slouken@492
   401
		if ( global_image ) {
slouken@492
   402
			SDL_BlitSurface(temp, NULL, global_image, NULL);
slouken@0
   403
		}
slouken@0
   404
		SDL_FreeSurface(temp);
slouken@234
   405
slouken@234
   406
		/* Make sure that the texture conversion is okay */
slouken@492
   407
		if ( ! global_image ) {
slouken@0
   408
			return;
slouken@0
   409
		}
slouken@0
   410
	}
slouken@0
   411
slouken@234
   412
	/* Move the image around
slouken@0
   413
           Note that we do not clear the old position.  This is because we
slouken@0
   414
           perform a glClear() which clears the framebuffer and then only
slouken@0
   415
           update the new area.
slouken@0
   416
           Note that you can also achieve interesting effects by modifying
slouken@0
   417
           the screen surface alpha channel.  It's set to 255 by default..
slouken@0
   418
         */
slouken@234
   419
	x += delta_x;
slouken@234
   420
	if ( x < 0 ) {
slouken@234
   421
		x = 0;
slouken@234
   422
		delta_x = -delta_x;
slouken@234
   423
	} else
slouken@234
   424
	if ( (x+w) > screen->w ) {
slouken@234
   425
		x = screen->w-w;
slouken@234
   426
		delta_x = -delta_x;
slouken@0
   427
	}
slouken@234
   428
	y += delta_y;
slouken@234
   429
	if ( y < 0 ) {
slouken@234
   430
		y = 0;
slouken@234
   431
		delta_y = -delta_y;
slouken@234
   432
	} else
slouken@234
   433
	if ( (y+h) > screen->h ) {
slouken@234
   434
		y = screen->h-h;
slouken@234
   435
		delta_y = -delta_y;
slouken@233
   436
	}
slouken@234
   437
	dst.x = x;
slouken@234
   438
	dst.y = y;
slouken@234
   439
	dst.w = w;
slouken@234
   440
	dst.h = h;
slouken@492
   441
	SDL_BlitSurface(global_image, NULL, screen, &dst);
slouken@234
   442
slouken@234
   443
	/* Show the image on the screen */
slouken@234
   444
	SDL_UpdateRects(screen, 1, &dst);
slouken@0
   445
}
slouken@0
   446
slouken@0
   447
int RunGLTest( int argc, char* argv[],
slouken@1736
   448
               int logo, int logocursor, int slowly, int bpp, float gamma, int noframe, int fsaa, int sync )
slouken@0
   449
{
slouken@0
   450
	int i;
slouken@0
   451
	int rgb_size[3];
slouken@0
   452
	int w = 640;
slouken@0
   453
	int h = 480;
slouken@0
   454
	int done = 0;
slouken@0
   455
	int frames;
slouken@0
   456
	Uint32 start_time, this_time;
slouken@0
   457
        float color[8][3]= {{ 1.0,  1.0,  0.0}, 
slouken@0
   458
			    { 1.0,  0.0,  0.0},
slouken@0
   459
			    { 0.0,  0.0,  0.0},
slouken@0
   460
			    { 0.0,  1.0,  0.0},
slouken@0
   461
			    { 0.0,  1.0,  1.0},
slouken@0
   462
			    { 1.0,  1.0,  1.0},
slouken@0
   463
			    { 1.0,  0.0,  1.0},
slouken@0
   464
			    { 0.0,  0.0,  1.0}};
slouken@0
   465
	float cube[8][3]= {{ 0.5,  0.5, -0.5}, 
slouken@0
   466
			   { 0.5, -0.5, -0.5},
slouken@0
   467
			   {-0.5, -0.5, -0.5},
slouken@0
   468
			   {-0.5,  0.5, -0.5},
slouken@0
   469
			   {-0.5,  0.5,  0.5},
slouken@0
   470
			   { 0.5,  0.5,  0.5},
slouken@0
   471
			   { 0.5, -0.5,  0.5},
slouken@0
   472
			   {-0.5, -0.5,  0.5}};
slouken@0
   473
	Uint32 video_flags;
slouken@0
   474
	int value;
slouken@0
   475
slouken@0
   476
	if( SDL_Init( SDL_INIT_VIDEO ) < 0 ) {
slouken@0
   477
		fprintf(stderr,"Couldn't initialize SDL: %s\n",SDL_GetError());
slouken@0
   478
		exit( 1 );
slouken@0
   479
	}
slouken@0
   480
slouken@0
   481
	/* See if we should detect the display depth */
slouken@0
   482
	if ( bpp == 0 ) {
slouken@0
   483
		if ( SDL_GetVideoInfo()->vfmt->BitsPerPixel <= 8 ) {
slouken@0
   484
			bpp = 8;
slouken@0
   485
		} else {
slouken@0
   486
			bpp = 16;  /* More doesn't seem to work */
slouken@0
   487
		}
slouken@0
   488
	}
slouken@0
   489
slouken@0
   490
	/* Set the flags we want to use for setting the video mode */
slouken@233
   491
	if ( logo && USE_DEPRECATED_OPENGLBLIT ) {
slouken@0
   492
		video_flags = SDL_OPENGLBLIT;
slouken@0
   493
	} else {
slouken@0
   494
		video_flags = SDL_OPENGL;
slouken@0
   495
	}
slouken@0
   496
	for ( i=1; argv[i]; ++i ) {
slouken@1265
   497
		if ( strcmp(argv[i], "-fullscreen") == 0 ) {
slouken@0
   498
			video_flags |= SDL_FULLSCREEN;
slouken@0
   499
		}
slouken@0
   500
	}
slouken@0
   501
slouken@320
   502
        if (noframe) {
slouken@320
   503
           video_flags |= SDL_NOFRAME;
slouken@320
   504
        }
slouken@320
   505
slouken@0
   506
	/* Initialize the display */
slouken@0
   507
	switch (bpp) {
slouken@0
   508
	    case 8:
slouken@363
   509
		rgb_size[0] = 3;
slouken@0
   510
		rgb_size[1] = 3;
slouken@363
   511
		rgb_size[2] = 2;
slouken@0
   512
		break;
slouken@0
   513
	    case 15:
slouken@0
   514
	    case 16:
slouken@0
   515
		rgb_size[0] = 5;
slouken@0
   516
		rgb_size[1] = 5;
slouken@0
   517
		rgb_size[2] = 5;
slouken@0
   518
		break;
slouken@0
   519
            default:
slouken@0
   520
		rgb_size[0] = 8;
slouken@0
   521
		rgb_size[1] = 8;
slouken@0
   522
		rgb_size[2] = 8;
slouken@0
   523
		break;
slouken@0
   524
	}
slouken@0
   525
	SDL_GL_SetAttribute( SDL_GL_RED_SIZE, rgb_size[0] );
slouken@0
   526
	SDL_GL_SetAttribute( SDL_GL_GREEN_SIZE, rgb_size[1] );
slouken@0
   527
	SDL_GL_SetAttribute( SDL_GL_BLUE_SIZE, rgb_size[2] );
slouken@0
   528
	SDL_GL_SetAttribute( SDL_GL_DEPTH_SIZE, 16 );
slouken@0
   529
	SDL_GL_SetAttribute( SDL_GL_DOUBLEBUFFER, 1 );
slouken@655
   530
	if ( fsaa ) {
slouken@656
   531
		SDL_GL_SetAttribute( SDL_GL_MULTISAMPLEBUFFERS, 1 );
slouken@656
   532
		SDL_GL_SetAttribute( SDL_GL_MULTISAMPLESAMPLES, fsaa );
slouken@655
   533
	}
slouken@1736
   534
	if ( sync ) {
slouken@1736
   535
		SDL_GL_SetAttribute( SDL_GL_SWAP_CONTROL, 1 );
slouken@1736
   536
	} else {
slouken@1736
   537
		SDL_GL_SetAttribute( SDL_GL_SWAP_CONTROL, 0 );
slouken@1736
   538
	}
slouken@0
   539
	if ( SDL_SetVideoMode( w, h, bpp, video_flags ) == NULL ) {
slouken@0
   540
		fprintf(stderr, "Couldn't set GL mode: %s\n", SDL_GetError());
slouken@0
   541
		SDL_Quit();
slouken@0
   542
		exit(1);
slouken@0
   543
	}
slouken@0
   544
slouken@0
   545
	printf("Screen BPP: %d\n", SDL_GetVideoSurface()->format->BitsPerPixel);
slouken@0
   546
	printf("\n");
slouken@0
   547
	printf( "Vendor     : %s\n", glGetString( GL_VENDOR ) );
slouken@0
   548
	printf( "Renderer   : %s\n", glGetString( GL_RENDERER ) );
slouken@0
   549
	printf( "Version    : %s\n", glGetString( GL_VERSION ) );
slouken@0
   550
	printf( "Extensions : %s\n", glGetString( GL_EXTENSIONS ) );
slouken@0
   551
	printf("\n");
slouken@0
   552
slouken@0
   553
	SDL_GL_GetAttribute( SDL_GL_RED_SIZE, &value );
slouken@0
   554
	printf( "SDL_GL_RED_SIZE: requested %d, got %d\n", rgb_size[0],value);
slouken@0
   555
	SDL_GL_GetAttribute( SDL_GL_GREEN_SIZE, &value );
slouken@0
   556
	printf( "SDL_GL_GREEN_SIZE: requested %d, got %d\n", rgb_size[1],value);
slouken@0
   557
	SDL_GL_GetAttribute( SDL_GL_BLUE_SIZE, &value );
slouken@0
   558
	printf( "SDL_GL_BLUE_SIZE: requested %d, got %d\n", rgb_size[2],value);
slouken@0
   559
	SDL_GL_GetAttribute( SDL_GL_DEPTH_SIZE, &value );
slouken@0
   560
	printf( "SDL_GL_DEPTH_SIZE: requested %d, got %d\n", bpp, value );
slouken@0
   561
	SDL_GL_GetAttribute( SDL_GL_DOUBLEBUFFER, &value );
slouken@0
   562
	printf( "SDL_GL_DOUBLEBUFFER: requested 1, got %d\n", value );
slouken@655
   563
	if ( fsaa ) {
slouken@656
   564
		SDL_GL_GetAttribute( SDL_GL_MULTISAMPLEBUFFERS, &value );
slouken@1736
   565
		printf("SDL_GL_MULTISAMPLEBUFFERS: requested 1, got %d\n", value );
slouken@656
   566
		SDL_GL_GetAttribute( SDL_GL_MULTISAMPLESAMPLES, &value );
slouken@1736
   567
		printf("SDL_GL_MULTISAMPLESAMPLES: requested %d, got %d\n", fsaa, value );
slouken@1736
   568
	}
slouken@1736
   569
	if ( sync ) {
slouken@1736
   570
		SDL_GL_GetAttribute( SDL_GL_SWAP_CONTROL, &value );
slouken@1736
   571
		printf( "SDL_GL_SWAP_CONTROL: requested 1, got %d\n", value );
slouken@655
   572
	}
slouken@0
   573
slouken@0
   574
	/* Set the window manager title bar */
slouken@0
   575
	SDL_WM_SetCaption( "SDL GL test", "testgl" );
slouken@0
   576
slouken@0
   577
	/* Set the gamma for the window */
slouken@0
   578
	if ( gamma != 0.0 ) {
slouken@0
   579
		SDL_SetGamma(gamma, gamma, gamma);
slouken@0
   580
	}
slouken@0
   581
slouken@0
   582
	glViewport( 0, 0, w, h );
slouken@0
   583
	glMatrixMode( GL_PROJECTION );
slouken@0
   584
	glLoadIdentity( );
slouken@0
   585
slouken@0
   586
	glOrtho( -2.0, 2.0, -2.0, 2.0, -20.0, 20.0 );
slouken@0
   587
slouken@0
   588
	glMatrixMode( GL_MODELVIEW );
slouken@0
   589
	glLoadIdentity( );
slouken@0
   590
slouken@0
   591
	glEnable(GL_DEPTH_TEST);
slouken@0
   592
slouken@0
   593
	glDepthFunc(GL_LESS);
slouken@0
   594
slouken@0
   595
	glShadeModel(GL_SMOOTH);
slouken@0
   596
slouken@0
   597
	/* Loop until done. */
slouken@0
   598
	start_time = SDL_GetTicks();
slouken@0
   599
	frames = 0;
slouken@0
   600
	while( !done ) {
slouken@0
   601
		GLenum gl_error;
slouken@0
   602
		char* sdl_error;
slouken@0
   603
		SDL_Event event;
slouken@0
   604
slouken@0
   605
		/* Do our drawing, too. */
slouken@0
   606
		glClearColor( 0.0, 0.0, 0.0, 1.0 );
slouken@0
   607
		glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
slouken@0
   608
slouken@0
   609
		glBegin( GL_QUADS );
slouken@0
   610
slouken@0
   611
#ifdef SHADED_CUBE
slouken@0
   612
			glColor3fv(color[0]);
slouken@0
   613
			glVertex3fv(cube[0]);
slouken@0
   614
			glColor3fv(color[1]);
slouken@0
   615
			glVertex3fv(cube[1]);
slouken@0
   616
			glColor3fv(color[2]);
slouken@0
   617
			glVertex3fv(cube[2]);
slouken@0
   618
			glColor3fv(color[3]);
slouken@0
   619
			glVertex3fv(cube[3]);
slouken@0
   620
			
slouken@0
   621
			glColor3fv(color[3]);
slouken@0
   622
			glVertex3fv(cube[3]);
slouken@0
   623
			glColor3fv(color[4]);
slouken@0
   624
			glVertex3fv(cube[4]);
slouken@0
   625
			glColor3fv(color[7]);
slouken@0
   626
			glVertex3fv(cube[7]);
slouken@0
   627
			glColor3fv(color[2]);
slouken@0
   628
			glVertex3fv(cube[2]);
slouken@0
   629
			
slouken@0
   630
			glColor3fv(color[0]);
slouken@0
   631
			glVertex3fv(cube[0]);
slouken@0
   632
			glColor3fv(color[5]);
slouken@0
   633
			glVertex3fv(cube[5]);
slouken@0
   634
			glColor3fv(color[6]);
slouken@0
   635
			glVertex3fv(cube[6]);
slouken@0
   636
			glColor3fv(color[1]);
slouken@0
   637
			glVertex3fv(cube[1]);
slouken@0
   638
			
slouken@0
   639
			glColor3fv(color[5]);
slouken@0
   640
			glVertex3fv(cube[5]);
slouken@0
   641
			glColor3fv(color[4]);
slouken@0
   642
			glVertex3fv(cube[4]);
slouken@0
   643
			glColor3fv(color[7]);
slouken@0
   644
			glVertex3fv(cube[7]);
slouken@0
   645
			glColor3fv(color[6]);
slouken@0
   646
			glVertex3fv(cube[6]);
slouken@0
   647
slouken@0
   648
			glColor3fv(color[5]);
slouken@0
   649
			glVertex3fv(cube[5]);
slouken@0
   650
			glColor3fv(color[0]);
slouken@0
   651
			glVertex3fv(cube[0]);
slouken@0
   652
			glColor3fv(color[3]);
slouken@0
   653
			glVertex3fv(cube[3]);
slouken@0
   654
			glColor3fv(color[4]);
slouken@0
   655
			glVertex3fv(cube[4]);
slouken@0
   656
slouken@0
   657
			glColor3fv(color[6]);
slouken@0
   658
			glVertex3fv(cube[6]);
slouken@0
   659
			glColor3fv(color[1]);
slouken@0
   660
			glVertex3fv(cube[1]);
slouken@0
   661
			glColor3fv(color[2]);
slouken@0
   662
			glVertex3fv(cube[2]);
slouken@0
   663
			glColor3fv(color[7]);
slouken@0
   664
			glVertex3fv(cube[7]);
slouken@1439
   665
#else /* flat cube */
slouken@0
   666
			glColor3f(1.0, 0.0, 0.0);
slouken@0
   667
			glVertex3fv(cube[0]);
slouken@0
   668
			glVertex3fv(cube[1]);
slouken@0
   669
			glVertex3fv(cube[2]);
slouken@0
   670
			glVertex3fv(cube[3]);
slouken@0
   671
			
slouken@0
   672
			glColor3f(0.0, 1.0, 0.0);
slouken@0
   673
			glVertex3fv(cube[3]);
slouken@0
   674
			glVertex3fv(cube[4]);
slouken@0
   675
			glVertex3fv(cube[7]);
slouken@0
   676
			glVertex3fv(cube[2]);
slouken@0
   677
			
slouken@0
   678
			glColor3f(0.0, 0.0, 1.0);
slouken@0
   679
			glVertex3fv(cube[0]);
slouken@0
   680
			glVertex3fv(cube[5]);
slouken@0
   681
			glVertex3fv(cube[6]);
slouken@0
   682
			glVertex3fv(cube[1]);
slouken@0
   683
			
slouken@0
   684
			glColor3f(0.0, 1.0, 1.0);
slouken@0
   685
			glVertex3fv(cube[5]);
slouken@0
   686
			glVertex3fv(cube[4]);
slouken@0
   687
			glVertex3fv(cube[7]);
slouken@0
   688
			glVertex3fv(cube[6]);
slouken@0
   689
slouken@0
   690
			glColor3f(1.0, 1.0, 0.0);
slouken@0
   691
			glVertex3fv(cube[5]);
slouken@0
   692
			glVertex3fv(cube[0]);
slouken@0
   693
			glVertex3fv(cube[3]);
slouken@0
   694
			glVertex3fv(cube[4]);
slouken@0
   695
slouken@0
   696
			glColor3f(1.0, 0.0, 1.0);
slouken@0
   697
			glVertex3fv(cube[6]);
slouken@0
   698
			glVertex3fv(cube[1]);
slouken@0
   699
			glVertex3fv(cube[2]);
slouken@0
   700
			glVertex3fv(cube[7]);
slouken@0
   701
#endif /* SHADED_CUBE */
slouken@0
   702
slouken@0
   703
		glEnd( );
slouken@0
   704
		
slouken@0
   705
		glMatrixMode(GL_MODELVIEW);
slouken@0
   706
		glRotatef(5.0, 1.0, 1.0, 1.0);
slouken@0
   707
slouken@0
   708
		/* Draw 2D logo onto the 3D display */
slouken@0
   709
		if ( logo ) {
slouken@234
   710
			if ( USE_DEPRECATED_OPENGLBLIT ) {
slouken@234
   711
				DrawLogoBlit();
slouken@234
   712
			} else {
slouken@234
   713
				DrawLogoTexture();
slouken@234
   714
			}
slouken@0
   715
		}
slouken@933
   716
		if ( logocursor ) {
slouken@933
   717
			DrawLogoCursor();
slouken@933
   718
		}
slouken@0
   719
slouken@0
   720
		SDL_GL_SwapBuffers( );
slouken@0
   721
slouken@0
   722
		/* Check for error conditions. */
slouken@0
   723
		gl_error = glGetError( );
slouken@0
   724
slouken@0
   725
		if( gl_error != GL_NO_ERROR ) {
slouken@0
   726
			fprintf( stderr, "testgl: OpenGL error: %d\n", gl_error );
slouken@0
   727
		}
slouken@0
   728
slouken@0
   729
		sdl_error = SDL_GetError( );
slouken@0
   730
slouken@0
   731
		if( sdl_error[0] != '\0' ) {
slouken@0
   732
			fprintf(stderr, "testgl: SDL error '%s'\n", sdl_error);
slouken@0
   733
			SDL_ClearError();
slouken@0
   734
		}
slouken@0
   735
slouken@0
   736
		/* Allow the user to see what's happening */
slouken@0
   737
		if ( slowly ) {
slouken@0
   738
			SDL_Delay( 20 );
slouken@0
   739
		}
slouken@0
   740
slouken@0
   741
		/* Check if there's a pending event. */
slouken@0
   742
		while( SDL_PollEvent( &event ) ) {
slouken@0
   743
			done = HandleEvent(&event);
slouken@0
   744
		}
slouken@0
   745
		++frames;
slouken@0
   746
	}
slouken@0
   747
slouken@0
   748
	/* Print out the frames per second */
slouken@0
   749
	this_time = SDL_GetTicks();
slouken@0
   750
	if ( this_time != start_time ) {
slouken@0
   751
		printf("%2.2f FPS\n",
slouken@0
   752
			((float)frames/(this_time-start_time))*1000.0);
slouken@0
   753
	}
slouken@0
   754
slouken@492
   755
	if ( global_image ) {
slouken@492
   756
	   	SDL_FreeSurface(global_image);
slouken@492
   757
		global_image = NULL;
slouken@492
   758
	}
slouken@492
   759
	if ( global_texture ) {
slouken@492
   760
		glDeleteTextures( 1, &global_texture );
slouken@492
   761
		global_texture = 0;
slouken@492
   762
	}
slouken@933
   763
	if ( cursor_texture ) {
slouken@933
   764
		glDeleteTextures( 1, &cursor_texture );
slouken@933
   765
		cursor_texture = 0;
slouken@933
   766
	}
slouken@492
   767
slouken@0
   768
	/* Destroy our GL context, etc. */
slouken@0
   769
	SDL_Quit( );
slouken@0
   770
	return(0);
slouken@0
   771
}
slouken@0
   772
slouken@0
   773
int main(int argc, char *argv[])
slouken@0
   774
{
slouken@1439
   775
	int i, logo, logocursor = 0;
slouken@0
   776
	int numtests;
slouken@0
   777
	int bpp = 0;
slouken@0
   778
	int slowly;
slouken@0
   779
	float gamma = 0.0;
slouken@492
   780
	int noframe = 0;
slouken@655
   781
	int fsaa = 0;
slouken@1736
   782
	int sync = 0;
slouken@0
   783
slouken@0
   784
	logo = 0;
slouken@0
   785
	slowly = 0;
slouken@0
   786
	numtests = 1;
slouken@0
   787
	for ( i=1; argv[i]; ++i ) {
slouken@0
   788
		if ( strcmp(argv[i], "-twice") == 0 ) {
slouken@0
   789
			++numtests;
slouken@0
   790
		}
slouken@0
   791
		if ( strcmp(argv[i], "-logo") == 0 ) {
slouken@0
   792
			logo = 1;
slouken@233
   793
			USE_DEPRECATED_OPENGLBLIT = SDL_FALSE;
slouken@233
   794
		}
slouken@233
   795
		if ( strcmp(argv[i], "-logoblit") == 0 ) {
slouken@233
   796
			logo = 1;
slouken@233
   797
			USE_DEPRECATED_OPENGLBLIT = SDL_TRUE;
slouken@0
   798
		}
slouken@933
   799
		if ( strcmp(argv[i], "-logocursor") == 0 ) {
slouken@933
   800
			logocursor = 1;
slouken@933
   801
		}
slouken@0
   802
		if ( strcmp(argv[i], "-slow") == 0 ) {
slouken@0
   803
			slowly = 1;
slouken@0
   804
		}
slouken@0
   805
		if ( strcmp(argv[i], "-bpp") == 0 ) {
slouken@0
   806
 		       bpp = atoi(argv[++i]);
slouken@0
   807
		}
slouken@0
   808
		if ( strcmp(argv[i], "-gamma") == 0 ) {
slouken@0
   809
 		       gamma = (float)atof(argv[++i]);
slouken@0
   810
		}
slouken@320
   811
		if ( strcmp(argv[i], "-noframe") == 0 ) {
slouken@320
   812
 		       noframe = 1;
slouken@320
   813
		}
slouken@655
   814
		if ( strcmp(argv[i], "-fsaa") == 0 ) {
slouken@655
   815
 		       ++fsaa;
slouken@655
   816
		}
slouken@1736
   817
		if ( strcmp(argv[i], "-sync") == 0 ) {
slouken@1736
   818
 		       ++sync;
slouken@1736
   819
		}
slouken@0
   820
		if ( strncmp(argv[i], "-h", 2) == 0 ) {
slouken@0
   821
 		       printf(
slouken@933
   822
"Usage: %s [-twice] [-logo] [-logocursor] [-slow] [-bpp n] [-gamma n] [-noframe] [-fsaa] [-fullscreen]\n",
slouken@0
   823
 			      argv[0]);
slouken@0
   824
			exit(0);
slouken@0
   825
		}
slouken@0
   826
	}
slouken@0
   827
	for ( i=0; i<numtests; ++i ) {
slouken@1736
   828
 		RunGLTest(argc, argv, logo, logocursor, slowly, bpp, gamma, noframe, fsaa, sync);
slouken@0
   829
	}
slouken@0
   830
	return 0;
slouken@0
   831
}
slouken@0
   832
slouken@0
   833
#else /* HAVE_OPENGL */
slouken@0
   834
slouken@0
   835
int main(int argc, char *argv[])
slouken@0
   836
{
slouken@0
   837
	printf("No OpenGL support on this system\n");
slouken@0
   838
	return 1;
slouken@0
   839
}
slouken@0
   840
slouken@0
   841
#endif /* HAVE_OPENGL */