PostProcessingShaderBaseImplementation.h

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#pragma once
 
#include <string>
 
#include <tdme/tdme.h>
#include <tdme/engine/fwd-tdme.h>
#include <tdme/engine/subsystems/postprocessing/fwd-tdme.h>
#include <tdme/engine/subsystems/postprocessing/PostProcessingShaderImplementation.h>
#include <tdme/engine/subsystems/renderer/fwd-tdme.h>
 
using std::string;
 
using tdme::engine::subsystems::renderer::Renderer;
using tdme::engine::Engine;
using tdme::engine::FrameBuffer;
 
/**
 * Post processing shader base implementation
 * @author Andreas Drewke
 */
class tdme::engine::subsystems::postprocessing::PostProcessingShaderBaseImplementation: public PostProcessingShaderImplementation
{
protected:
    int32_t programId { -1 };
 
    int32_t vertexShaderId { -1 };
    int32_t fragmentShaderId { -1 };
 
    int32_t uniformColorBufferTextureUnit { -1 };
    int32_t uniformDepthBufferTextureUnit { -1 };
    int32_t uniformTemporaryColorBufferTextureUnit { -1 };
    int32_t uniformTemporaryDepthBufferTextureUnit { -1 };
    int32_t uniformBufferTexturePixelWidth { -1 };
    int32_t uniformBufferTexturePixelHeight { -1 };
 
    bool isRunning { false };
    bool initialized { false };
    Renderer* renderer { nullptr };
 
public:
    // forbid class copy
    FORBID_CLASS_COPY(PostProcessingShaderBaseImplementation)
 
    /**
     * Public constructor
     * @param renderer renderer
     */
    PostProcessingShaderBaseImplementation(Renderer* renderer);
 
    // overridden methods
    virtual bool isInitialized() override;
    virtual void initialize() override;
    virtual void useProgram(int contextIdx) override;
    virtual void unUseProgram() override;
    virtual void setBufferPixelWidth(int contextIdx, float pixelWidth) override;
    virtual void setBufferPixelHeight(int contextIdx, float pixelHeight) override;
    virtual void setShaderParameters(int contextIdx, Engine* engine) override = 0;
    virtual void unloadTextures();
    virtual void loadTextures(const string& pathName);
 
};