EffectBinding.h

#pragma once
 
#include "Rendering/Common.h"
 
#include "Resources/Resources.h"
#include "Resources/MaterialTypes.h"
 
#include <unordered_map>
#include <vector>
 
namespace Cogs
{
  namespace Core
  {
    struct RenderEffect;
 
    struct GlobalBinding
    {
      ConstantBufferBindingHandle viewBufferBinding = ConstantBufferBindingHandle::NoHandle;
      ConstantBufferBindingHandle sceneBufferBinding = ConstantBufferBindingHandle::NoHandle;
      ConstantBufferBindingHandle lightBufferBinding = ConstantBufferBindingHandle::NoHandle;
      ConstantBufferBindingHandle shadowBufferBinding = ConstantBufferBindingHandle::NoHandle;
 
 
      TextureBindingHandle shadowArrayBinding = TextureBindingHandle::NoHandle;
      TextureBindingHandle shadowArrayBinding_1 = TextureBindingHandle::NoHandle;
      SamplerStateBindingHandle shadowArraySamplerBinding = SamplerStateBindingHandle::NoHandle;
      TextureBindingHandle shadowCubeArrayBinding = TextureBindingHandle::NoHandle;
      TextureBindingHandle shadowCubeArrayBinding_1 = TextureBindingHandle::NoHandle;
      SamplerStateBindingHandle shadowCubeArraySamplerBinding = SamplerStateBindingHandle::NoHandle;
      SamplerStateBindingHandle shadowSamplerBinding = SamplerStateBindingHandle::NoHandle;
 
      // used by es2
      EffectVariableHandle shadowDataBinding = EffectVariableHandle::NoHandle;
      EffectVariableHandle environmentInfoBinding = EffectVariableHandle::NoHandle;
 
      TextureBindingHandle skyBinding = TextureBindingHandle::NoHandle;
      TextureBindingHandle radianceBinding = TextureBindingHandle::NoHandle;
      TextureBindingHandle irradianceBinding = TextureBindingHandle::NoHandle;
      TextureBindingHandle ambientIrradianceBinding = TextureBindingHandle::NoHandle;
      TextureBindingHandle brdfLUTBinding = TextureBindingHandle::NoHandle;
      SamplerStateBindingHandle skySamplerBinding = SamplerStateBindingHandle::NoHandle;
      SamplerStateBindingHandle radianceSamplerBinding = SamplerStateBindingHandle::NoHandle;
      SamplerStateBindingHandle irradianceSamplerBinding = SamplerStateBindingHandle::NoHandle;
      SamplerStateBindingHandle ambientIrradianceSamplerBinding = SamplerStateBindingHandle::NoHandle;
      SamplerStateBindingHandle brdfLUTSamplerBinding = SamplerStateBindingHandle::NoHandle;
 
      SamplerStateBindingHandle linearSampler = SamplerStateBindingHandle::NoHandle;
 
      TextureBindingHandle blueNoise = TextureBindingHandle::NoHandle;
      TextureBindingHandle blueNoiseStable = TextureBindingHandle::NoHandle;
    };
 
    struct EffectBinding : public GlobalBinding
    {
      std::vector<ConstantBufferBindingHandle> bufferBindings;
      uint16_t buffersGeneration = static_cast<uint16_t>(-1);
      uint16_t generation = 0;
      uint16_t effectGeneration = static_cast<uint16_t>(-1);
 
      std::vector<TextureBindingHandle> textureBindings;
      std::vector<SamplerStateBindingHandle> samplerBindings;
 
      ConstantBufferBindingHandle objectBufferBinding = ConstantBufferBindingHandle::NoHandle;
      
      ConstantBufferBindingHandle animationBufferBinding = ConstantBufferBindingHandle::NoHandle;
 
      struct ConstantBufferVariable
      {
        EffectVariableHandle handle;
        size_t offset;
        Cogs::Core::MaterialDataType type;
        Cogs::Core::ConstantBufferKey buffer;
      };
      std::vector<ConstantBufferVariable> constantBufferVariables;
 
 
      struct SceneBindings
      {
        EffectVariableHandle projectionMatrix;
        EffectVariableHandle viewMatrix;
        EffectVariableHandle inverseViewMatrix;
        EffectVariableHandle inverseProjectionMatrix;
        EffectVariableHandle worldToClipMatrix;
        EffectVariableHandle viewFromiewportTMatrix;
        EffectVariableHandle projectionParameters;
        EffectVariableHandle viewport;
        EffectVariableHandle clippingPlanesBinding;
      } sceneBindings;
 
      struct LightBindings
      {
        EffectVariableHandle lightTransforms;
        EffectVariableHandle lightColors;
        EffectVariableHandle numLights;
        EffectVariableHandle eyePosition;
        EffectVariableHandle fogColor;
        EffectVariableHandle ambientColor;
      } lightBindings;
 
      struct ObjectBindings
      {
        EffectVariableHandle worldMatrix;
        EffectVariableHandle objectData;
      } objectBindings;
 
      struct Buffer
      {
        BufferHandle handle;
        size_t generation = 0;
      };
 
      RenderEffect * renderEffect = nullptr;
      std::vector<Buffer> buffers;
    };
  }
}