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//
// Copyright 2013 Pixar
//
// Licensed under the Apache License, Version 2.0 (the "Apache License")
// with the following modification; you may not use this file except in
// compliance with the Apache License and the following modification to it:
// Section 6. Trademarks. is deleted and replaced with:
//
// 6. Trademarks. This License does not grant permission to use the trade
// names, trademarks, service marks, or product names of the Licensor
// and its affiliates, except as required to comply with Section 4(c) of
// the License and to reproduce the content of the NOTICE file.
//
// You may obtain a copy of the Apache License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the Apache License with the above modification is
// distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied. See the Apache License for the specific
// language governing permissions and limitations under the Apache License.
//
#ifndef GL_FONT_UTILS_H
#define GL_FONT_UTILS_H
#include "../common/glUtils.h"
#include <vector>
class GLFont {
public:
GLFont(GLuint fontTexture);
~GLFont();
void Draw(GLuint transforUB);
void Clear();
void Print3D(float const pos[3], const char * str, int color=0);
void SetFontScale(float scale);
struct Char {
float pos[3];
float ofs[2];
float alpha;
float color;
};
std::vector<Char> & GetChars() {
_dirty=true;
return _chars;
}
private:
void bindProgram();
std::vector<Char> _chars;
bool _dirty;
GLuint _program,
_transformBinding,
_attrPosition,
_attrData,
_fontTexture,
_scale,
_VAO,
_EAO,
_VBO;
};
#endif // GL_FONT_UTILS_H
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