vk_vertex_buffer.hh

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/* SPDX-FileCopyrightText: 2022 Blender Authors
 *
 * SPDX-License-Identifier: GPL-2.0-or-later */
 
#pragma once
 
#include "GPU_vertex_buffer.hh"
 
#include "vk_buffer.hh"
#include "vk_data_conversion.hh"
 
namespace blender::gpu {
 
class VKVertexBuffer : public VertBuf {
  VKBuffer buffer_;
  VkBufferView vk_buffer_view_ = VK_NULL_HANDLE;
 
  VertexFormatConverter vertex_format_converter;
 
 public:
  ~VKVertexBuffer();
 
  void bind_as_ssbo(uint binding) override;
  void bind_as_texture(uint binding) override;
  void wrap_handle(uint64_t handle) override;
 
  void update_sub(uint start, uint len, const void *data) override;
  void read(void *data) const override;
 
  VkBuffer vk_handle() const
  {
    BLI_assert(buffer_.is_allocated());
    return buffer_.vk_handle();
  }
 
  VkBufferView vk_buffer_view_get() const
  {
    BLI_assert(vk_buffer_view_ != VK_NULL_HANDLE);
    return vk_buffer_view_;
  }
 
  void device_format_ensure();
  const GPUVertFormat &device_format_get() const;
  void ensure_updated();
  void ensure_buffer_view();
 
 protected:
  void acquire_data() override;
  void resize_data() override;
  void release_data() override;
  void upload_data() override;
  void duplicate_data(VertBuf *dst) override;
 
 private:
  void allocate();
 
  void upload_data_direct(const VKBuffer &host_buffer);
  void upload_data_via_staging_buffer(VKContext &context);
 
  /* VKTexture requires access to `buffer_` to convert a vertex buffer to a texture. */
  friend class VKTexture;
};
 
BLI_INLINE VKVertexBuffer *unwrap(VertBuf *vertex_buffer)
{
  return static_cast<VKVertexBuffer *>(vertex_buffer);
}
 
}  // namespace blender::gpu