MultiTexShader.h

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#ifndef ULT_MULTITEX_SHADER_H_INCLUDED
#define ULT_MULTITEX_SHADER_H_INCLUDED
 
#include "Effect.h"
#include "../Renderer/RenderInterface.h"
 
namespace Ult
{

class MultiTexShader : public Effect
{
public:
    MultiTexShader(
        const char* vs, const char* ps,
        const char* decalFile1, const char* decalFile2,
        std::vector<FilterType>* filters,
        RenderInterface* renderer)
    {
        mRenderer = renderer;
        assert(mRenderer);
        mRenderer->LoadTexFromFile(decalFile1, ULT_TEX2D_TYPE, &mDecalTexture1);
        mRenderer->ApplyFilters(mDecalTexture1, filters);
        mRenderer->LoadTexFromFile(decalFile2, ULT_TEX2D_TYPE, &mDecalTexture2);
        mRenderer->ApplyFilters(mDecalTexture2, filters);
        mRenderer->CreateShaderFromFile(vs, ps, &mShader);
        mRenderer->SetupShaderParameter("mvp", mShader, &mMvpParam);
        mRenderer->SetupShaderParameter("decal1", mShader, &mDecalParam1);
        mRenderer->SetupShaderParameter("decal2", mShader, &mDecalParam2);
    }

    ~MultiTexShader()
    {
    }

    void ApplyEffect()
    {
        mRenderer->ApplyShader(mShader);
        mRenderer->SetShaderParameter1i(mDecalParam1, 0);
        mRenderer->ApplyTexture(0, mDecalTexture1);
        mRenderer->SetShaderParameter1i(mDecalParam2, 1);
        mRenderer->ApplyTexture(1, mDecalTexture2);
    }

    void Release()
    {
        mRenderer->DeleteTexture(mDecalTexture1);
        mRenderer->DeleteTexture(mDecalTexture2);
    }
 
protected:
    ShaderHandle mShader;
    ParameterHandle mMvpParam;
    ParameterHandle mDecalParam1, mDecalParam2;
    Texture mDecalTexture1, mDecalTexture2;
    RenderInterface* mRenderer;
};
 
} // namespace Ult
 
#endif // ULT_MULTITEX_SHADER_H_INCLUDED