nuclear@0: #ifdef WIN32
nuclear@0: #define WIN32_LEAN_AND_MEAN
nuclear@0: #include <windows.h>
nuclear@0: #endif
nuclear@0: #ifdef __APPLE__
nuclear@0: #include <OpenGL/gl.h>
nuclear@0: #else
nuclear@0: #include <GL/gl.h>
nuclear@0: #endif
nuclear@0: #include "vr_impl.h"
nuclear@0: 
nuclear@0: static unsigned int eye_tex[2];
nuclear@0: static float tex_umin[2], tex_umax[2];
nuclear@0: static float tex_vmin[2], tex_vmax[2];
nuclear@0: 
nuclear@0: static int init(void)
nuclear@0: {
nuclear@0: 	return 0;
nuclear@0: }
nuclear@0: 
nuclear@0: static int present(void)
nuclear@0: {
nuclear@0: 	int i;
nuclear@0: 
nuclear@0: 	glPushAttrib(GL_ENABLE_BIT | GL_TRANSFORM_BIT);
nuclear@0: 
nuclear@0: 	glDisable(GL_LIGHTING);
nuclear@0: 	glDisable(GL_DEPTH_TEST);
nuclear@0: 	glDisable(GL_FOG);
nuclear@0: 	glDisable(GL_CULL_FACE);
nuclear@0: 
nuclear@0: 	glEnable(GL_TEXTURE_2D);
nuclear@0: 
nuclear@0: 	glMatrixMode(GL_MODELVIEW);
nuclear@0: 	glLoadIdentity();
nuclear@0: 	glMatrixMode(GL_PROJECTION);
nuclear@0: 	glLoadIdentity();
nuclear@0: 
nuclear@0: 	for(i=0; i<2; i++) {
nuclear@0: 		float x0 = i == 0 ? -1 : 0;
nuclear@0: 		float x1 = i == 0 ? 0 : 1;
nuclear@0: 
nuclear@0: 		glBindTexture(GL_TEXTURE_2D, eye_tex[i]);
nuclear@0: 
nuclear@0: 		glBegin(GL_QUADS);
nuclear@0: 		glTexCoord2f(tex_umin[i], tex_vmin[i]);
nuclear@0: 		glVertex2f(x0, -1);
nuclear@0: 		glTexCoord2f(tex_umax[i], tex_vmin[i]);
nuclear@0: 		glVertex2f(x1, -1);
nuclear@0: 		glTexCoord2f(tex_umax[i], tex_vmax[i]);
nuclear@0: 		glVertex2f(x1, 1);
nuclear@0: 		glTexCoord2f(tex_umin[i], tex_vmax[i]);
nuclear@0: 		glVertex2f(x0, 1);
nuclear@0: 		glEnd();
nuclear@0: 	}
nuclear@0: 
nuclear@0: 	glPopMatrix();
nuclear@0: 	glMatrixMode(GL_MODELVIEW);
nuclear@0: 	glPopMatrix();
nuclear@0: 
nuclear@0: 	glPopAttrib();
nuclear@0: 	return 0;
nuclear@0: }
nuclear@0: 
nuclear@0: static void set_eye_texture(int eye, unsigned int tex, float umin, float vmin, float umax, float vmax)
nuclear@0: {
nuclear@0: 	eye_tex[eye] = tex;
nuclear@0: 	tex_umin[eye] = umin;
nuclear@0: 	tex_umax[eye] = umax;
nuclear@0: 	tex_vmin[eye] = vmin;
nuclear@0: 	tex_vmax[eye] = vmax;
nuclear@0: }
nuclear@0: 
nuclear@0: struct vr_module *vr_module_null(void)
nuclear@0: {
nuclear@0: 	static struct vr_module m;
nuclear@0: 
nuclear@0: 	if(!m.init) {
nuclear@0: 		m.name = "null";
nuclear@0: 		m.init = init;
nuclear@0: 		m.set_eye_texture = set_eye_texture;
nuclear@0: 		m.present = present;
nuclear@0: 	}
nuclear@0: 	return &m;
nuclear@0: }