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/*
* Copyright © 2011 Linaro Limited
*
* This file is part of the glmark2 OpenGL (ES) 2.0 benchmark.
*
* glmark2 is free software: you can redistribute it and/or modify it under the
* terms of the GNU General Public License as published by the Free Software
* Foundation, either version 3 of the License, or (at your option) any later
* version.
*
* glmark2 is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License along with
* glmark2. If not, see <http://www.gnu.org/licenses/>.
*
* Authors:
* Alexandros Frantzis (glmark2)
*/
#ifndef GLMARK2_TEXT_RENDERER_H_
#define GLMARK2_TEXT_RENDERER_H_
#include <string>
#include "gl-headers.h"
#include "vec.h"
#include "program.h"
#include "canvas.h"
/**
* Renders text using OpenGL textures.
*/
class TextRenderer
{
public:
TextRenderer(Canvas& canvas);
~TextRenderer();
void text(const std::string& t);
void position(const LibMatrix::vec2& p);
void size(float s);
void render();
private:
void create_geometry();
LibMatrix::vec2 get_glyph_coords(char c);
Canvas& canvas_;
bool dirty_;
std::string text_;
LibMatrix::vec2 position_;
LibMatrix::vec2 size_;
Program program_;
GLuint vbo_[2];
GLuint texture_;
};
#endif
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