Text.h

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/* Copyright (c) 2012-2017, ARM Limited and Contributors
 *
 * SPDX-License-Identifier: MIT
 *
 * Permission is hereby granted, free of charge,
 * to any person obtaining a copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation the rights to
 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software,
 * and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
 * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */

#ifndef TEXT_H
#define TEXT_H

#include "Matrix.h"

#if GLES_VERSION == 2
#include <GLES2/gl2.h>
#elif GLES_VERSION == 3
#include <GLES3/gl3.h>
#else 
#error "GLES_VERSION must be defined as either 2 or 3"
#endif

#include <string>

namespace MaliSDK
{
    class Text
    {
    private:
        static const std::string textureFilename;
        static const std::string vertexShaderFilename;
        static const std::string fragmentShaderFilename;
        
        static const float scale;
        

        
        Matrix projectionMatrix;
        int numberOfCharacters;
        float *textVertex;
        float *textTextureCoordinates;
        float *color;
        GLshort *textIndex;
        int m_iLocPosition;
        int m_iLocProjection;
        int m_iLocTextColor;
        int m_iLocTexCoord;
        int m_iLocTexture;
        GLuint vertexShaderID;
        GLuint fragmentShaderID;
        GLuint programID;
        GLuint textureID;

    public: 

        static const int textureCharacterWidth;
        
        static const int textureCharacterHeight;
        Text(const char * resourceDirectory, int windowWidth, int windowHeight);
        
        virtual ~Text(void);
        
        void clear(void);

        void addString(int xPosition, int yPosition, const char *string, int red, int green, int blue, int alpha);

        void draw(void);
    };
}
#endif /* TEXT_H */