LightingShaderBaseImplementation.h

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#pragma once
 
#include <array>
 
#include <tdme/tdme.h>
#include <tdme/engine/fwd-tdme.h>
#include <tdme/engine/subsystems/lighting/fwd-tdme.h>
#include <tdme/engine/subsystems/lighting/LightingShaderConstants.h>
#include <tdme/engine/subsystems/lighting/LightingShaderImplementation.h>
#include <tdme/engine/subsystems/renderer/fwd-tdme.h>
#include <tdme/engine/Engine.h>
#include <tdme/math/fwd-tdme.h>
#include <tdme/math/Matrix4x4.h>
 
using std::array;
 
using tdme::engine::subsystems::lighting::LightingShaderConstants;
using tdme::engine::subsystems::lighting::LightingShaderImplementation;
using tdme::engine::subsystems::renderer::Renderer;
using tdme::engine::Engine;
using tdme::math::Matrix4x4;
 
/**
 * Lighting shader implementation
 * @author Andreas Drewke
 */
class tdme::engine::subsystems::lighting::LightingShaderBaseImplementation: public LightingShaderImplementation
{
protected:
    int32_t programId { -1 };
    int32_t fragmentShaderId { -1 };
    int32_t vertexShaderId { -1 };
    int32_t uniformTextureAtlasSize { -1 };
    int32_t uniformTextureAtlasPixelDimension { -1 };
    int32_t uniformDiffuseTextureUnit { -1 };
    int32_t uniformDiffuseTextureAvailable { -1 };
    int32_t uniformDiffuseTextureMaskedTransparency { -1 };
    int32_t uniformDiffuseTextureMaskedTransparencyThreshold { -1 };
    int32_t uniformSpecularTextureUnit { -1 };
    int32_t uniformSpecularTextureAvailable { -1 };
    int32_t uniformNormalTextureUnit { -1 };
    int32_t uniformNormalTextureAvailable { -1 };
    int32_t uniformProjectionMatrix { -1 };
    int32_t uniformCameraMatrix { -1 };
    int32_t uniformCameraPosition { -1 };
    int32_t uniformMVPMatrix { -1 };
    int32_t uniformMVMatrix { -1 };
    int32_t uniformNormalMatrix { -1 };
    int32_t uniformModelMatrix { -1 };
    int32_t uniformTextureMatrix { -1 };
    int32_t uniformEffectColorMul { -1 };
    int32_t uniformEffectColorAdd { -1 };
    int32_t uniformMaterialAmbient { -1 };
    int32_t uniformMaterialDiffuse { -1 };
    int32_t uniformMaterialSpecular { -1 };
    int32_t uniformMaterialEmission { -1 };
    int32_t uniformMaterialShininess { -1 };
    int32_t uniformMaterialReflection { -1 };
    int32_t uniformMaterialReflectionFragmentShader { -1 };
    int32_t uniformTime { -1 };
    int32_t uniformApplyFoliageAnimation { -1 };
    int32_t uniformEnvironmentMappingTextureUnit { -1 };
    int32_t uniformEnvironmentMappingTextureAvailable { -1 };
    int32_t uniformEnvironmentMappingPosition { -1 };
    array<int32_t, Engine::LIGHTS_MAX> uniformLightEnabled;
    array<int32_t, Engine::LIGHTS_MAX> uniformLightAmbient;
    array<int32_t, Engine::LIGHTS_MAX> uniformLightDiffuse;
    array<int32_t, Engine::LIGHTS_MAX> uniformLightSpecular;
    array<int32_t, Engine::LIGHTS_MAX> uniformLightPosition;
    array<int32_t, Engine::LIGHTS_MAX> uniformLightSpotDirection;
    array<int32_t, Engine::LIGHTS_MAX> uniformLightSpotExponent;
    array<int32_t, Engine::LIGHTS_MAX> uniformLightSpotCosCutoff;
    array<int32_t, Engine::LIGHTS_MAX> uniformLightConstantAttenuation;
    array<int32_t, Engine::LIGHTS_MAX> uniformLightLinearAttenuation;
    array<int32_t, Engine::LIGHTS_MAX> uniformLightQuadraticAttenuation;
    array<int32_t, Engine::LIGHTS_MAX> uniformLightRadius;
    array<float, 4> defaultSceneColor {{ 0.0f, 0.0f, 0.0f, 0.0f }};
    bool initialized { false };
    Renderer* renderer { nullptr };
 
public:
    // forbid class copy
    FORBID_CLASS_COPY(LightingShaderBaseImplementation)
 
    /**
     * Public constructor
     * @param renderer renderer
     */
    LightingShaderBaseImplementation(Renderer* renderer);
 
    // overridden methods
    virtual bool isInitialized() override;
    virtual void initialize() override;
    virtual void useProgram(Engine* engine, int contextIdx) override;
    virtual void unUseProgram(int contextIdx) override;
    virtual void updateEffect(Renderer* renderer, int contextIdx) override;
    virtual void updateMaterial(Renderer* renderer, int contextIdx) override;
    virtual void updateLight(Renderer* renderer, int contextIdx, int32_t lightId) override;
    virtual void updateMatrices(Renderer* renderer, int contextIdx) override;
    virtual void updateTextureMatrix(Renderer* renderer, int contextIdx) override;
    virtual void bindTexture(Renderer* renderer, int contextIdx, int32_t textureId) override;
    virtual void updateShaderParameters(Renderer* renderer, int contextIdx) override = 0;
    virtual void unloadTextures() override;
    virtual void loadTextures(const string& pathName) override;
 
};