dom/webgpu/ExternalTexture.h

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* This Source Code Form is subject to the terms of the Mozilla Public
   3  * License, v. 2.0. If a copy of the MPL was not distributed with this
   4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   5
   6 #ifndef ExternalTexture_H_
   7 #define ExternalTexture_H_
   8
   9 #include "mozilla/gfx/Point.h"
  10 #include "mozilla/layers/LayersSurfaces.h"
  11 #include "mozilla/webgpu/ffi/wgpu.h"
  12
  13 namespace mozilla {
  14
  15 namespace webgpu {
  16
  17 // A texture that can be used by the WebGPU implementation but is created and
  18 // owned by Gecko
  19 class ExternalTexture {
  20  public:
  21   static UniquePtr<ExternalTexture> Create(
  22       const uint32_t aWidth, const uint32_t aHeight,
  23       const struct ffi::WGPUTextureFormat aFormat);
  24
  25   ExternalTexture(const uint32_t aWidth, const uint32_t aHeight,
  26                   const struct ffi::WGPUTextureFormat aFormat);
  27   virtual ~ExternalTexture();
  28
  29   virtual void* GetExternalTextureHandle() { return nullptr; }
  30
  31   virtual Maybe<layers::SurfaceDescriptor> ToSurfaceDescriptor() = 0;
  32
  33   gfx::IntSize GetSize() { return gfx::IntSize(mWidth, mHeight); }
  34
  35   const uint32_t mWidth;
  36   const uint32_t mHeight;
  37   const struct ffi::WGPUTextureFormat mFormat;
  38 };
  39
  40 }  // namespace webgpu
  41 }  // namespace mozilla
  42
  43 #endif  // GPU_ExternalTexture_H_