tor-browser

The Tor Browser
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SourceSurfaceD3D11.cpp (2149B)

      1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
      2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
      3 /* This Source Code Form is subject to the terms of the Mozilla Public
      4 * License, v. 2.0. If a copy of the MPL was not distributed with this
      5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
      6 
      7 #include "SourceSurfaceD3D11.h"
      8 
      9 namespace mozilla {
     10 namespace gfx {
     11 
     12 /* static */
     13 RefPtr<SourceSurfaceD3D11> SourceSurfaceD3D11::Create(
     14    ID3D11Texture2D* aTexture, const uint32_t aArrayIndex,
     15    const gfx::ColorSpace2 aColorSpace, const gfx::ColorRange aColorRange,
     16    const Maybe<layers::CompositeProcessFencesHolderId> aFencesHolderId) {
     17  MOZ_ASSERT(aTexture);
     18 
     19  if (!aTexture) {
     20    return nullptr;
     21  }
     22 
     23  CD3D11_TEXTURE2D_DESC desc;
     24  aTexture->GetDesc(&desc);
     25 
     26  if (desc.Format != DXGI_FORMAT_B8G8R8A8_UNORM &&
     27      desc.Format != DXGI_FORMAT_NV12 && desc.Format != DXGI_FORMAT_P010 &&
     28      desc.Format != DXGI_FORMAT_P016) {
     29    MOZ_ASSERT_UNREACHABLE("unexpected to be called");
     30    return nullptr;
     31  }
     32 
     33  return MakeAndAddRef<SourceSurfaceD3D11>(
     34      SurfaceFormat::B8G8R8A8, IntSize(desc.Width, desc.Height), aTexture,
     35      aArrayIndex, aColorSpace, aColorRange, aFencesHolderId);
     36 }
     37 
     38 SourceSurfaceD3D11::SourceSurfaceD3D11(
     39    const SurfaceFormat aFormat, const IntSize aSize, ID3D11Texture2D* aTexture,
     40    const uint32_t aArrayIndex, const gfx::ColorSpace2 aColorSpace,
     41    const gfx::ColorRange aColorRange,
     42    const Maybe<layers::CompositeProcessFencesHolderId> aFencesHolderId)
     43    : mFormat(aFormat),
     44      mSize(aSize),
     45      mTexture(aTexture),
     46      mArrayIndex(aArrayIndex),
     47      mColorSpace(aColorSpace),
     48      mColorRange(aColorRange),
     49      mFencesHolderId(aFencesHolderId) {}
     50 
     51 SourceSurfaceD3D11::~SourceSurfaceD3D11() {}
     52 
     53 bool SourceSurfaceD3D11::IsValid() const { return true; }
     54 
     55 already_AddRefed<DataSourceSurface> SourceSurfaceD3D11::GetDataSurface() {
     56  RefPtr<DataSourceSurface> src =
     57      Factory::CreateBGRA8DataSourceSurfaceForD3D11Texture(
     58          mTexture, mArrayIndex, mColorSpace, mColorRange);
     59  return src.forget();
     60 }
     61 
     62 }  // namespace gfx
     63 }  // namespace mozilla