cuda/graphics_interop.h

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/* SPDX-FileCopyrightText: 2011-2022 Blender Foundation
 *
 * SPDX-License-Identifier: Apache-2.0 */
 
#ifdef WITH_CUDA
 
#  include "device/graphics_interop.h"
 
#  ifdef WITH_CUDA_DYNLOAD
#    include "cuew.h"
#  else
#    include <cuda.h>
#  endif
 
CCL_NAMESPACE_BEGIN
 
class CUDADevice;
class CUDADeviceQueue;
 
class CUDADeviceGraphicsInterop : public DeviceGraphicsInterop {
 public:
  explicit CUDADeviceGraphicsInterop(CUDADeviceQueue *queue);
 
  CUDADeviceGraphicsInterop(const CUDADeviceGraphicsInterop &other) = delete;
  CUDADeviceGraphicsInterop(CUDADeviceGraphicsInterop &&other) noexcept = delete;
 
  ~CUDADeviceGraphicsInterop();
 
  CUDADeviceGraphicsInterop &operator=(const CUDADeviceGraphicsInterop &other) = delete;
  CUDADeviceGraphicsInterop &operator=(CUDADeviceGraphicsInterop &&other) = delete;
 
  virtual void set_display_interop(const DisplayDriver::GraphicsInterop &display_interop) override;
 
  virtual device_ptr map() override;
  virtual void unmap() override;
 
 protected:
  CUDADeviceQueue *queue_ = nullptr;
  CUDADevice *device_ = nullptr;
 
  /* OpenGL PBO which is currently registered as the destination for the CUDA buffer. */
  int64_t opengl_pbo_id_ = 0;
  /* Buffer area in pixels of the corresponding PBO. */
  int64_t buffer_area_ = 0;
 
  /* The destination was requested to be cleared. */
  bool need_clear_ = false;
 
  CUgraphicsResource cu_graphics_resource_ = nullptr;
};
 
CCL_NAMESPACE_END
 
#endif