Seele/src/Engine/Graphics/Buffer.h

#pragma once
#include "Initializer.h"
#include "Resources.h"

namespace Seele {
namespace Gfx {
class Buffer : public QueueOwnedResource {
  public:
    Buffer(QueueFamilyMapping mapping);
    virtual ~Buffer();

  protected:
    // Inherited via QueueOwnedResource
    virtual void executeOwnershipBarrier(QueueType newOwner) = 0;
    virtual void executePipelineBarrier(SeAccessFlags srcAccess, SePipelineStageFlags srcStage, SeAccessFlags dstAccess,
                                        SePipelineStageFlags dstStage) = 0;
};

class VertexBuffer : public Buffer {
  public:
    VertexBuffer(QueueFamilyMapping mapping, const VertexBufferCreateInfo& createInfo);
    virtual ~VertexBuffer();
    constexpr uint32 getNumVertices() const { return numVertices; }
    // Size of one vertex in bytes
    constexpr uint32 getVertexSize() const { return vertexSize; }

    virtual void updateRegion(DataSource update) = 0;
    virtual void download(Array<uint8>& buffer) = 0;

  protected:
    // Inherited via QueueOwnedResource
    virtual void executeOwnershipBarrier(QueueType newOwner) = 0;
    virtual void executePipelineBarrier(SeAccessFlags srcAccess, SePipelineStageFlags srcStage, SeAccessFlags dstAccess,
                                        SePipelineStageFlags dstStage) = 0;
    uint32 numVertices;
    uint32 vertexSize;
};
DEFINE_REF(VertexBuffer)

class IndexBuffer : public Buffer {
  public:
    IndexBuffer(QueueFamilyMapping mapping, const IndexBufferCreateInfo& createInfo);
    virtual ~IndexBuffer();
    constexpr uint64 getNumIndices() const { return numIndices; }
    constexpr Gfx::SeIndexType getIndexType() const { return indexType; }

    virtual void download(Array<uint8>& buffer) = 0;

  protected:
    // Inherited via QueueOwnedResource
    virtual void executeOwnershipBarrier(QueueType newOwner) = 0;
    virtual void executePipelineBarrier(SeAccessFlags srcAccess, SePipelineStageFlags srcStage, SeAccessFlags dstAccess,
                                        SePipelineStageFlags dstStage) = 0;
    Gfx::SeIndexType indexType;
    uint64 numIndices;
};
DEFINE_REF(IndexBuffer)

DECLARE_REF(UniformBuffer)
class UniformBuffer : public Buffer {
  public:
    UniformBuffer(QueueFamilyMapping mapping, const UniformBufferCreateInfo& createInfo);
    virtual ~UniformBuffer();

    virtual void rotateBuffer(uint64 size) = 0;
    virtual void updateContents(const DataSource& sourceData) = 0;

  protected:
    // Inherited via QueueOwnedResource
    virtual void executeOwnershipBarrier(QueueType newOwner) = 0;
    virtual void executePipelineBarrier(SeAccessFlags srcAccess, SePipelineStageFlags srcStage, SeAccessFlags dstAccess,
                                        SePipelineStageFlags dstStage) = 0;
};
DEFINE_REF(UniformBuffer)
class ShaderBuffer : public Buffer {
  public:
    ShaderBuffer(QueueFamilyMapping mapping, const ShaderBufferCreateInfo& createInfo);
    virtual ~ShaderBuffer();
    virtual void readContents(Array<uint8>& data) = 0;
    virtual void rotateBuffer(uint64 size, bool preserveContents = false) = 0;
    virtual void updateContents(const ShaderBufferCreateInfo& sourceData) = 0;
    constexpr uint32 getNumElements() const { return numElements; }

    virtual void clear() = 0;

  protected:
    // Inherited via QueueOwnedResource
    virtual void executeOwnershipBarrier(QueueType newOwner) = 0;
    virtual void executePipelineBarrier(SeAccessFlags srcAccess, SePipelineStageFlags srcStage, SeAccessFlags dstAccess,
                                        SePipelineStageFlags dstStage) = 0;

    uint32 numElements;
};
DEFINE_REF(ShaderBuffer)
} // namespace Gfx
} // namespace Seele