painterogl2_shadersources.h

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 * Copyright (c) 2010-2020 OTClient <https://github.com/edubart/otclient>
 *
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 * of this software and associated documentation files (the "Software"), to deal
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#ifndef PAINTEROGL2_SHADERSOURCES_H
#define PAINTEROGL2_SHADERSOURCES_H
 
static const std::string glslMainVertexShader = "\n\
    highp vec4 calculatePosition();\n\
    void main() {\n\
        gl_Position = calculatePosition();\n\
    }\n";
 
static const std::string glslMainWithTexCoordsVertexShader = "\n\
    attribute highp vec2 a_TexCoord;\n\
    uniform highp mat3 u_TextureMatrix;\n\
    varying highp vec2 v_TexCoord;\n\
    highp vec4 calculatePosition();\n\
    void main()\n\
    {\n\
        gl_Position = calculatePosition();\n\
        v_TexCoord = (u_TextureMatrix * vec3(a_TexCoord,1.0)).xy;\n\
    }\n";
 
static std::string glslPositionOnlyVertexShader = "\n\
    attribute highp vec2 a_Vertex;\n\
    uniform highp mat3 u_TransformMatrix;\n\
    uniform highp mat3 u_ProjectionMatrix;\n\
    highp vec4 calculatePosition() {\n\
        return vec4(u_ProjectionMatrix * u_TransformMatrix * vec3(a_Vertex.xy, 1.0), 1.0);\n\
    }\n";
 
static const std::string glslMainFragmentShader = "\n\
    uniform lowp float u_Opacity;\n\
    lowp vec4 calculatePixel();\n\
    void main()\n\
    {\n\
        gl_FragColor = calculatePixel();\n\
        gl_FragColor.a *= u_Opacity;\n\
    }\n";
 
static const std::string glslTextureSrcFragmentShader = "\n\
    varying mediump vec2 v_TexCoord;\n\
    uniform lowp vec4 u_Color;\n\
    uniform sampler2D u_Tex0;\n\
    lowp vec4 calculatePixel() {\n\
        return texture2D(u_Tex0, v_TexCoord) * u_Color;\n\
    }\n";
 
static const std::string glslSolidColorFragmentShader = "\n\
    uniform lowp vec4 u_Color;\n\
    lowp vec4 calculatePixel() {\n\
        return u_Color;\n\
    }\n";
 
#endif