effect.hpp

#pragma once

#include "Mountain/core.hpp"
#include "Mountain/rendering/render_target.hpp"
#include "Mountain/resource/compute_shader.hpp"
#include "Mountain/resource/texture.hpp"

namespace Mountain
{
    class Effect
    {
    public:
        struct MOUNTAIN_API ImageBinding
        {
            uint32_t textureId;
            uint32_t shaderBinding;
            Graphics::ImageShaderAccess shaderAccess;
        };

        List<ImageBinding> imageBindings;

        MOUNTAIN_API Effect() = default;
        MOUNTAIN_API virtual ~Effect() = default;

        DEFAULT_COPY_MOVE_OPERATIONS(Effect)

        MOUNTAIN_API virtual void LoadResources() = 0;

        MOUNTAIN_API void Apply(Vector2i textureSize, bool_t synchronizeImageData) const;

    protected:
        Pointer<ComputeShader> m_ComputeShader;
    };

    class Vignette : public Effect
    {
    public:
        MOUNTAIN_API void LoadResources() override;

        MOUNTAIN_API void SetStrength(float_t newStrength) const;
    };

    class FilmGrain : public Effect
    {
    public:
        MOUNTAIN_API void LoadResources() override;

        MOUNTAIN_API void SetIntensity(float_t newIntensity) const;
    };
}