TexAtlasRenderer.h

#pragma once
#include "Renderer/IRenderer.h"
#include "Resources/MaterialInstance.h"
 
namespace Cogs::Core {
 
  struct TexAtlasSystem;
 
  struct TexAtlasRenderer : public IRendererExtension
  {
    explicit TexAtlasRenderer(TexAtlasSystem* texAtlasSystem) : texAtlasSystem(texAtlasSystem) {}
    ~TexAtlasRenderer() override;
 
    void initialize(Context* context, IGraphicsDevice* device) override;
    void handleEvent(uint32_t eventId, const DrawContext* renderingContext) override;
    void generateCommands(const RenderTaskContext* renderingContext, RenderList* renderList) override;
 
    // Polls atlasBlit effect readiness, lazily performing reflection-dependent binding setup
    // on the Pending/Error -> Ready transition. Returns true once the effect (if any is used
    // on this device type) is ready to be used for drawing.
    bool isReady();
 
    TexAtlasSystem* texAtlasSystem = nullptr;
 
    struct {
      MeshStreamsLayout streamsLayout;
      Cogs::VertexBufferHandle vertices;
      Cogs::BufferHandle paramBuffer;
    } fullScreenTriangle;
 
    // WebGL on VR headsets have an issue with copy/blits from texture arrays, so we use shader instead
    struct {
      Cogs::EffectHandle effect = Cogs::EffectHandle::NoHandle;
      Cogs::ResourceStatus effectStatus = Cogs::ResourceStatus::Pending;
      Cogs::InputLayoutHandle inputLayout = Cogs::InputLayoutHandle::NoHandle;
      Cogs::TextureBindingHandle srcTexBinding = Cogs::TextureBindingHandle::NoHandle;
      Cogs::SamplerStateBindingHandle srcSamplerBinding = Cogs::SamplerStateBindingHandle::NoHandle;
      Cogs::ConstantBufferBindingHandle paramBinding = Cogs::ConstantBufferBindingHandle::NoHandle;
 
      Cogs::BufferHandle paramBuffer = Cogs::BufferHandle::NoHandle;
      Cogs::SamplerStateHandle samplerState = Cogs::SamplerStateHandle::NoHandle;
      Cogs::TextureHandle sourceTexture = Cogs::TextureHandle::NoHandle;
      Cogs::DepthStencilStateHandle depthStencilState = Cogs::DepthStencilStateHandle::NoHandle;
      Cogs::BlendStateHandle blendState = Cogs::BlendStateHandle::NoHandle;
    } atlasBlit;
 
 
    glm::vec4 frustumCorners[8];
    bool renderFrustum = false;
 
    MeshStreamsLayout wireStreamsLayout;
    MaterialHandle debugMaterial;
    MaterialInstanceHandle debugMaterialNoneInstance;
    MaterialInstanceHandle debugMaterialEvalInstance;
 
    Cogs::IGraphicsDevice* device = nullptr;
    Cogs::VertexBufferHandle wireBoxVertices;
    Cogs::IndexBufferHandle wireBoxIndices;
    Cogs::BufferHandle wireBoxConstants;
    uint32_t wireBoxIndexStride = 0;
    uint32_t wireBoxIndexCount = 0;
 
  };
 
}