63 lines
1.6 KiB
C++
63 lines
1.6 KiB
C++
#ifndef OPENGLVARIABLE_H
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#define OPENGLVARIABLE_H
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#include "opengl_global.h"
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#include <memory>
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class QImage;
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namespace paysages {
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namespace opengl {
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/**
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* OpenGL variable that can be bound to a uniform for shaders.
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*/
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class OPENGLSHARED_EXPORT OpenGLVariable final {
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public:
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OpenGLVariable(const string &name);
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~OpenGLVariable();
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/**
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* Apply the variable to the bound shader program.
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*
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* 'texture_unit' will be used and updated accordingly.
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*
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* This must be called from the rendering thread, with the shader program bound.
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*/
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void apply(OpenGLShaderProgram *program, unsigned int &texture_unit);
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/**
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* Release any allocated resource in the opengl context.
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*
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* Must be called in the opengl rendering thread, and before the destructor is called.
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*/
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void destroy(OpenGLFunctions *functions);
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void set(const Texture2D *texture, bool repeat = false, bool color = true);
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void set(const QImage &texture, bool repeat = false, bool color = true);
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void set(const Texture3D *texture, bool repeat = false, bool color = true);
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void set(const Texture4D *texture, bool repeat = false, bool color = true);
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void set(int value);
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void set(float value);
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void set(const FractalNoise &noise);
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void set(const Vector3 &vector);
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void set(const Matrix4 &matrix);
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void set(const Color &color);
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int getIntValue() const;
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float getFloatValue() const;
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float getFloatArrayValue(unsigned int index) const;
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protected:
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void uploadTexture(OpenGLFunctions *renderer);
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private:
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class pimpl;
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unique_ptr<pimpl> impl;
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};
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}
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}
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#endif // OPENGLVARIABLE_H
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