Class Bloom

PostProcess/Bloom/interface/Bloom.hpp:50–178

}

class Bloom
{
public:
    enum FEATURE_FLAGS : Uint32
    {
        FEATURE_FLAG_NONE = 0u
    };

    struct RenderAttributes
    {
        /// Render device that may be used to create new objects needed for this frame, if any.
        IRenderDevice* pDevice = nullptr;

        /// Optional render state cache to optimize state loading.
        IRenderStateCache* pStateCache = nullptr;

        /// Device context that will record the rendering commands.
        IDeviceContext* pDeviceContext = nullptr;

        /// PostFX context
        PostFXContext* pPostFXContext = nullptr;

        /// Shader resource view of the source color.
        ITextureView* pColorBufferSRV = nullptr;

        /// Bloom settings
        const HLSL::BloomAttribs* pBloomAttribs = nullptr;
    };

    struct CreateInfo
    {
        bool EnableAsyncCreation = false;
    };

public:
    Bloom(IRenderDevice* pDevice, const CreateInfo& CI);

    ~Bloom();

    void PrepareResources(IRenderDevice* pDevice, IDeviceContext* pDeviceContext, PostFXContext* pPostFXContext, FEATURE_FLAGS FeatureFlags);

    void Execute(const RenderAttributes& RenderAttribs);

    static bool UpdateUI(HLSL::BloomAttribs& Attribs, FEATURE_FLAGS& FeatureFlags);

    ITextureView* GetBloomTextureSRV() const;

private:
    using RenderTechnique  = PostFXRenderTechnique;
    using ResourceInternal = RefCntAutoPtr<IDeviceObject>;

    enum RENDER_TECH : Uint32
    {
        RENDER_TECH_COMPUTE_PREFILTERED_TEXTURE = 0,
        RENDER_TECH_COMPUTE_DOWNSAMPLED_TEXTURE,
        RENDER_TECH_COMPUTE_UPSAMPLED_TEXTURE,
        RENDER_TECH_COUNT
    };