mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-10-30 05:35:31 +00:00
a8939590de
The bulk of this commit was generated by running:
run-clang-tidy.py \
-checks='-*,llvm-namespace-comment' \
-header-filter=^/.../mozilla-central/.* \
-fix
145 lines
3.9 KiB
C++
145 lines
3.9 KiB
C++
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "WMF.h"
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#include "D3D11ShareHandleImage.h"
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#include "gfxImageSurface.h"
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#include "gfxWindowsPlatform.h"
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#include "mozilla/layers/TextureClient.h"
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#include "mozilla/layers/TextureD3D11.h"
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#include "mozilla/layers/CompositableClient.h"
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#include "mozilla/layers/CompositableForwarder.h"
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#include "d3d11.h"
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namespace mozilla {
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namespace layers {
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HRESULT
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D3D11ShareHandleImage::SetData(const Data& aData)
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{
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NS_ENSURE_TRUE(aData.mTexture, E_POINTER);
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mTexture = aData.mTexture;
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mPictureRect = aData.mRegion;
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D3D11_TEXTURE2D_DESC frameDesc;
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mTexture->GetDesc(&frameDesc);
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mFormat = gfx::SurfaceFormat::B8G8R8A8;
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mSize.width = frameDesc.Width;
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mSize.height = frameDesc.Height;
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return S_OK;
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}
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gfx::IntSize
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D3D11ShareHandleImage::GetSize()
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{
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return mSize;
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}
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TextureClient*
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D3D11ShareHandleImage::GetTextureClient(CompositableClient* aClient)
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{
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if (!mTextureClient) {
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mTextureClient = TextureClientD3D11::Create(aClient->GetForwarder(),
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mFormat,
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TextureFlags::DEFAULT,
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mTexture,
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mSize);
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}
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return mTextureClient;
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}
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already_AddRefed<gfx::SourceSurface>
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D3D11ShareHandleImage::GetAsSourceSurface()
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{
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if (!mTexture) {
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NS_WARNING("Cannot readback from shared texture because no texture is available.");
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return nullptr;
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}
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RefPtr<ID3D11Device> device;
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mTexture->GetDevice(byRef(device));
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RefPtr<IDXGIKeyedMutex> keyedMutex;
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if (FAILED(mTexture->QueryInterface(static_cast<IDXGIKeyedMutex**>(byRef(keyedMutex))))) {
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NS_WARNING("Failed to QueryInterface for IDXGIKeyedMutex, strange.");
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return nullptr;
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}
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if (FAILED(keyedMutex->AcquireSync(0, 0))) {
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NS_WARNING("Failed to acquire sync for keyedMutex, plugin failed to release?");
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return nullptr;
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}
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D3D11_TEXTURE2D_DESC desc;
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mTexture->GetDesc(&desc);
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CD3D11_TEXTURE2D_DESC softDesc(desc.Format, desc.Width, desc.Height);
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softDesc.CPUAccessFlags = D3D11_CPU_ACCESS_READ;
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softDesc.BindFlags = 0;
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softDesc.MiscFlags = 0;
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softDesc.MipLevels = 1;
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softDesc.Usage = D3D11_USAGE_STAGING;
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RefPtr<ID3D11Texture2D> softTexture;
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HRESULT hr = device->CreateTexture2D(&softDesc,
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NULL,
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static_cast<ID3D11Texture2D**>(byRef(softTexture)));
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if (FAILED(hr)) {
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NS_WARNING("Failed to create 2D staging texture.");
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keyedMutex->ReleaseSync(0);
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return nullptr;
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}
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RefPtr<ID3D11DeviceContext> context;
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device->GetImmediateContext(byRef(context));
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if (!context) {
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keyedMutex->ReleaseSync(0);
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return nullptr;
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}
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context->CopyResource(softTexture, mTexture);
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keyedMutex->ReleaseSync(0);
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RefPtr<gfx::DataSourceSurface> surface =
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gfx::Factory::CreateDataSourceSurface(mSize, gfx::SurfaceFormat::B8G8R8X8);
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if (NS_WARN_IF(!surface)) {
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return nullptr;
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}
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gfx::DataSourceSurface::MappedSurface mappedSurface;
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if (!surface->Map(gfx::DataSourceSurface::WRITE, &mappedSurface)) {
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return nullptr;
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}
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D3D11_MAPPED_SUBRESOURCE map;
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hr = context->Map(softTexture, 0, D3D11_MAP_READ, 0, &map);
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if (!SUCCEEDED(hr)) {
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surface->Unmap();
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return nullptr;
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}
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for (int y = 0; y < mSize.height; y++) {
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memcpy(mappedSurface.mData + mappedSurface.mStride * y,
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(unsigned char*)(map.pData) + map.RowPitch * y,
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mSize.width * 4);
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}
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context->Unmap(softTexture, 0);
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surface->Unmap();
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return surface.forget();
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}
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ID3D11Texture2D*
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D3D11ShareHandleImage::GetTexture() const {
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return mTexture;
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}
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} // namespace layers
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} // namespace mozilla
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