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/* video.cc
This file is part of the Osirion project and is distributed under
the terms and conditions of the GNU General Public License version 2
*/
// SDL headers
#include <SDL/SDL.h>
// C++ headers
#include <iostream>
// project headers
#include "gl/osiriongl.h"
#include "view.h"
namespace video
{
int width = 0;
int height = 0;
bool initialized = false;
float ratio = 1;
void reset()
{
ratio = (float) width / (float) height;
// Our shading model--Gouraud (smooth).
gl::shademodel(GL_SMOOTH);
// Culling
gl::cullface( GL_BACK );
gl::frontface(GL_CCW );
gl::enable( GL_CULL_FACE );
gl::depthmask(GL_TRUE); // Depth buffer writing
gl::enable(GL_DEPTH_TEST);
// Set the clear color
gl::clearcolor( 0, 0, 0, 0 );
// Setup our viewport.
gl::viewport(0, 0, width, height );
view::reset();
}
void init()
{
if (initialized) {
return;
}
int bpp = 0;
int flags = 0;
if( SDL_Init(SDL_INIT_VIDEO) < 0 ) {
std::cerr << "SDL_Init() failed: " << SDL_GetError() << std::endl;
return;
}
const SDL_VideoInfo* sdl_videoinfo = SDL_GetVideoInfo();
if( !sdl_videoinfo) {
std::cerr << "SDL_GetVideoInfo() failed: " << SDL_GetError() << std::endl;
return;
}
width = 800;
height = 600;
bpp = sdl_videoinfo->vfmt->BitsPerPixel;
SDL_GL_SetAttribute( SDL_GL_RED_SIZE, 5 );
SDL_GL_SetAttribute( SDL_GL_GREEN_SIZE, 5 );
SDL_GL_SetAttribute( SDL_GL_BLUE_SIZE, 5 );
SDL_GL_SetAttribute( SDL_GL_DEPTH_SIZE, 16 );
SDL_GL_SetAttribute( SDL_GL_DOUBLEBUFFER, 1 );
flags = SDL_OPENGL | SDL_FULLSCREEN;
if(!SDL_SetVideoMode(width, height, bpp, flags )) {
std::cerr << "SDL_SetVideoMode() failed: " << SDL_GetError() << std::endl;
return;
}
gl::init();
initialized = true;
view::init();
reset();
return;
}
void draw(float elapsed)
{
view::draw(elapsed);
}
void shutdown()
{
view::shutdown();
gl::shutdown();
initialized = false;
width = 0;
height = 0;
}
} // namespace video
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