GUIShader.h

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#pragma once
 
#include <array>
 
#include <tdme/tdme.h>
#include <tdme/engine/subsystems/renderer/fwd-tdme.h>
#include <tdme/gui/nodes/GUIColor.h>
#include <tdme/gui/renderer/fwd-tdme.h>
 
using tdme::engine::subsystems::renderer::Renderer;
 
using std::array;
 
using tdme::gui::nodes::GUIColor;
 
/**
 * GUI shader
 * @author Andreas Drewke
 */
class tdme::gui::renderer::GUIShader final
{
 
private:
    Renderer* renderer { nullptr };
    int32_t vertexShaderId { -1 };
    int32_t fragmentShaderId { -1 };
    int32_t programId { -1 };
    int32_t uniformDiffuseTextureUnit { -1 };
    int32_t uniformDiffuseTextureAvailable { -1 };
    int32_t uniformMaskTextureUnit { -1 };
    int32_t uniformMaskTextureAvailable { -1 };
    int32_t uniformMaskMaxValue { -1 };
    int32_t uniformEffectColorMul { -1 };
    int32_t uniformEffectColorAdd { -1 };
    int32_t uniformTextureMatrix { -1 };
    int32_t uniformGradientAvailable { -1 };
    array<int32_t, 10> uniformGradientColors { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 };
    int32_t uniformGradientColorCount { -1 };
    array<int32_t, 10> uniformGradientColorStarts { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 };
    int32_t uniformInverseGradientTextureMatrix { -1 };
    bool initialized;
    bool isRunning;
 
public:
    // forbid class copy
    FORBID_CLASS_COPY(GUIShader)
 
    /**
     * Public constructor
     * @param renderer renderer
     */
    GUIShader(Renderer* renderer);
 
    /**
     * @return if initialized and ready to use
     */
    bool isInitialized();
 
    /**
     * Init shadow mapping
     */
    void initialize();
 
    /**
     * Use render GUI program
     */
    void useProgram();
 
    /**
     * Un use render GUI program
     */
    void unUseProgram();
 
    /**
     * Bind texture
     * @param textureId texture id
     */
    void bindTexture(int32_t textureId);
 
    /**
     * Update effect to program
     */
    void updateEffect();
 
    /**
     * Update texure matrix to program
     */
    void updateTextureMatrix();
 
    /**
     * Set gradient properties
     * @deprecated use rather custom UI shader and parameters
     * @param count color count
     * @param colors colors
     * @param colorStarts color starts
     * @param rotationAngle rotation angle
     */
    void setGradient(int count, array<GUIColor, 10>& colors, array<float, 10>& colorStarts, float rotationAngle);
 
    /**
     * Disable gradient
     * @deprecated use rather custom UI shader and parameters
     */
    void unsetGradient();
 
};