OpenGL

gistfile1.txt

void Text::glRenderText(std::string text, TTF_Font *font, SDL_Color color, SDL_Rect *location)
{
    int w,
        h;

    SDL_Surface *FontSurface;
	GLuint TextureID;
	
    FontSurface = TTF_RenderText_Blended(font, text.c_str(), color);
	
	w = Math::nextpoweroftwo(FontSurface->w);
	h = Math::nextpoweroftwo(FontSurface->h);

	glGenTextures(1, &TextureID);
	glBindTexture(GL_TEXTURE_2D, TextureID);
	glTexImage2D(GL_TEXTURE_2D, 0, 4, w, h, 0, GL_RGB, GL_UNSIGNED_BYTE, FontSurface->pixels); 

	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);	

	glEnable(GL_TEXTURE_2D);
	glBindTexture(GL_TEXTURE_2D, TextureID);
	glColor3f(1.0f, 1.0f, 1.0f);
	
	glBegin(GL_QUADS);
		glTexCoord2f(0.0f, 1.0f); glVertex2f(location->x, location->y);
		glTexCoord2f(1.0f, 1.0f); glVertex2f(location->x + w, location->y);
		glTexCoord2f(1.0f, 0.0f); glVertex2f(location->x + w, location->y + h);
		glTexCoord2f(0.0f, 0.0f); glVertex2f(location->x, location->y + h);
	glEnd();
	
	glFinish();
	
	SDL_FreeSurface(FontSurface);
	glDeleteTextures(1, &TextureID);
}

Help me with this scrap :(