static void render_rectangle_bitmap(PictureBuffer* screen, Rect rect,Rect subrect,Vec4 color)
{
	glEnable(GL_TEXTURE_2D);
	glMatrixMode(GL_TEXTURE);
	glLoadIdentity();


	glBindTexture(GL_TEXTURE_2D,(GLuint)screen->handle );

	Vec2 lower_left=vec2f(rect.startx,rect.endy);
	Vec2 upper_left=vec2f(rect.startx,rect.starty);
	Vec2 upper_right= vec2f(rect.endx,rect.starty);
	Vec2 lower_right= vec2f(rect.endx,rect.endy);

	glBegin(GL_TRIANGLES);
	glColor4fv(color.xyzw);


	glTexCoord2f(screen->width*subrect.startx/(r32)screen->pitch,subrect.starty);
	glVertex2fv(upper_left.E);
	glTexCoord2f(screen->width*subrect.endx/(r32)screen->pitch,subrect.starty);
	glVertex2fv(upper_right.E);
	glTexCoord2f(screen->width*subrect.endx/(r32)screen->pitch,subrect.endy);
	glVertex2fv(lower_right.E);
	glTexCoord2f(screen->width*subrect.startx/(r32)screen->pitch,subrect.starty);
	glVertex2fv(upper_left.E);
	glTexCoord2f(screen->width*subrect.endx/(r32)screen->pitch,subrect.endy);
	glVertex2fv(lower_right.E);
	glTexCoord2f(screen->width*subrect.startx/(r32)screen->pitch,subrect.endy);
	glVertex2fv(lower_left.E);
	glEnd();
	glBindTexture(GL_TEXTURE_2D,0 );
	glDisable(GL_TEXTURE_2D);
}