vk_immediate.hh

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/* SPDX-FileCopyrightText: 2023 Blender Authors
 *
 * SPDX-License-Identifier: GPL-2.0-or-later */

 
#pragma once
 
#include "MEM_guardedalloc.h"
 
#include "gpu_immediate_private.hh"
#include "gpu_vertex_format_private.hh"
 
#include "vk_buffer.hh"
#include "vk_data_conversion.hh"
#include "vk_mem_alloc.h"
#include "vk_vertex_attribute_object.hh"
 
namespace blender::gpu {
 
class VKDevice;
 
/* Size of internal buffer. */
constexpr size_t DEFAULT_INTERNAL_BUFFER_SIZE = 4 * 1024 * 1024;
 
class VKImmediate : public Immediate {
 private:
  VKVertexAttributeObject vertex_attributes_;
 
  VkDeviceSize buffer_offset_ = 0;
  VkDeviceSize current_subbuffer_len_ = 0;
 
  std::optional<VKBuffer> active_buffer_;
 
 public:
  uchar *begin() override;
  void end() override;
 
  friend class VKVertexAttributeObject;
 
 private:
  VKBufferWithOffset active_buffer() const;
  VkDeviceSize buffer_bytes_free();
 
  VKBuffer &ensure_space(VkDeviceSize bytes_needed, VkDeviceSize offset_alignment);
};
 
}  // namespace blender::gpu