BindGroupsWebGPU.h

#pragma once
 
#include "CommonWebGPU.h"
#include "../IBindGroups.h"
#include "../Base/ResourceMap.h"
 
#include <cstdint>
#include <string>
#include <vector>
 
namespace Cogs
{
  class GraphicsDeviceWebGPU;
 
  enum BindingState {
    BindingState_Invalid,
    BindingState_NeedsUpdate,
    BindingState_Updated,
  };
 
  struct BindingWebGPU {
    WGPUBindGroupEntry entry;
    BindingState state = BindingState::BindingState_Invalid;
    BindGroupEntryDescription description;
  };
 
  struct BindGroupWebGPU {
    size_t descHash = 0;
 
    BindingWebGPU bindings[MaxBindGroupEntries];
    uint16_t numBindings = 0;
    WGPUBindGroupLayout layout = nullptr;
    WGPUBindGroup bindGroup = nullptr;
  };
 
  
  
 
 
  struct BindGroupsWebGPU : public IBindGroups {
  public:
    static WGPUBindGroupLayout createBindGroupLayout(GraphicsDeviceWebGPU* device, const BindGroupDescription& desc);
    void initialize(GraphicsDeviceWebGPU* graphicsDevice);
 
    virtual BindGroupHandle createBindGroup(const BindGroupDescription* desc) override;
    virtual BindGroupConstantBufferBindingHandle getConstantBufferBinding(BindGroupHandle handle, const StringView& name) override;
    virtual BindGroupTextureBindingHandle getTextureBinding(BindGroupHandle handle, const StringView& name) override;
    virtual BindGroupSamplerStateBindingHandle getSamplerBinding(BindGroupHandle handle, const StringView& name) override;
 
    virtual bool isCompatable(BindGroupHandle handle, const BindGroupDescription &desc) override;
 
    virtual bool setTexture(BindGroupHandle handle, BindGroupTextureBindingHandle bindig, const TextureHandle textureHandle) override;
    virtual bool setTexture(BindGroupHandle handle, BindGroupTextureBindingHandle bindig, const TextureViewHandle textureViewHandle) override;
    virtual bool setSamplerState(BindGroupHandle handle, BindGroupSamplerStateBindingHandle bindig, SamplerStateHandle samplerStateHandle) override;
    virtual bool setConstantBuffer(BindGroupHandle handle, BindGroupConstantBufferBindingHandle bindig, BufferHandle bufferHandle, const uint32_t offset = 0, const uint32_t size = ~0u) override;
    bool isCompatable(BindGroupHandle handle, size_t descHash);
    virtual void releaseBindGroup(BindGroupHandle handle) override;
    WGPUBindGroup getNativeBindGroup(BindGroupHandle handle);
 
    GraphicsDeviceWebGPU* graphicsDevice = nullptr;
    SafeResourceMap<BindGroupHandle, BindGroupWebGPU> bind_groups;
 
  };
 
 
 
 
 
 
}