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

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

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

	glEnd();
	glBindTexture(GL_TEXTURE_2D,0 );
}

void prepare_using_bitmap(PictureBuffer* screen)
{
	glEnable(GL_TEXTURE_2D);
	glMatrixMode(GL_TEXTURE);
	glLoadIdentity();
	glGenTextures(1,(GLuint*)&screen->handle);
	glBindTexture(GL_TEXTURE_2D,(GLuint)screen->handle );

	glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_LINEAR );
	glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_LINEAR );
	glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_WRAP_S,GL_CLAMP );
	glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_WRAP_T,GL_CLAMP );

	glTexEnvi(GL_TEXTURE_ENV,GL_TEXTURE_ENV_MODE,GL_MODULATE);
	glTexImage2D(GL_TEXTURE_2D,0,GL_RGBA8,screen->pitch,screen->height, 0,GL_BGRA_EXT,GL_UNSIGNED_BYTE,screen->picture);

	glBindTexture(GL_TEXTURE_2D,0 );
}

static void render_rectangle(Rect rect,Vec4 color)
{
	glBegin(GL_TRIANGLES);
	glColor4fv(color.xyzw);

	Vec2 lower_left=vec2f(rect.start.x,rect.end.y);
	Vec2 upper_left=vec2f(rect.start.x,rect.start.y);
	Vec2 upper_right=vec2f(rect.end.x,rect.start.y);
	Vec2 lower_right=vec2f(rect.end.x,rect.end.y);
	glVertex2fv(upper_left.E);
	glVertex2fv(upper_right.E);
	glVertex2fv(lower_right.E);

	glVertex2fv(upper_left.E);
	glVertex2fv(lower_right.E);
	glVertex2fv(lower_left.E);
	glEnd();
}


void render(...)
{
....
			case render_label_rect:
			{
				delta=sizeof(Render_rect_info);
				Assert(not_in_font);
				Render_rect_info* rect=(Render_rect_info*) header;
				render_rectangle(rect->rect,rect->color);
			}break;

			case render_label_bitmap_subrect:
			{
				delta=sizeof(Render_bitmap_subrect_info);
				Render_bitmap_subrect_info* bitmap=(Render_bitmap_subrect_info*) header;
				Assert(not_in_font);
				if(!bitmap->screen->handle)
				{
					prepare_using_bitmap(bitmap->screen);
				}
				render_rectangle_bitmap(bitmap->screen, bitmap->rect,bitmap->subrect,bitmap->color);
				break;
			}
	}