The Tor Browser: comparison gfx/2d/SourceSurfaceD2DTarget.cpp

--1:000000000000
+:e4121c27a1ab
+/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+* This Source Code Form is subject to the terms of the Mozilla Public
+* License, v. 2.0. If a copy of the MPL was not distributed with this
+* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+#include "SourceSurfaceD2DTarget.h"
+#include "Logging.h"
+#include "DrawTargetD2D.h"
+#include "Tools.h"
+#include <algorithm>
+namespace mozilla {
+namespace gfx {
+SourceSurfaceD2DTarget::SourceSurfaceD2DTarget(DrawTargetD2D* aDrawTarget,
+ID3D10Texture2D* aTexture,
+SurfaceFormat aFormat)
+: mDrawTarget(aDrawTarget)
+, mTexture(aTexture)
+, mFormat(aFormat)
+, mOwnsCopy(false)
+{
+}
+SourceSurfaceD2DTarget::~SourceSurfaceD2DTarget()
+{
+// We don't need to do anything special here to notify our mDrawTarget. It must
+// already have cleared its mSnapshot field, otherwise this object would
+// be kept alive.
+if (mOwnsCopy) {
+IntSize size = GetSize();
+DrawTargetD2D::mVRAMUsageSS -= size.width * size.height * BytesPerPixel(mFormat);
+}
+}
+IntSize
+SourceSurfaceD2DTarget::GetSize() const
+{
+D3D10_TEXTURE2D_DESC desc;
+mTexture->GetDesc(&desc);
+return IntSize(desc.Width, desc.Height);
+}
+SurfaceFormat
+SourceSurfaceD2DTarget::GetFormat() const
+{
+return mFormat;
+}
+TemporaryRef<DataSourceSurface>
+SourceSurfaceD2DTarget::GetDataSurface()
+{
+RefPtr<DataSourceSurfaceD2DTarget> dataSurf =
+new DataSourceSurfaceD2DTarget(mFormat);
+D3D10_TEXTURE2D_DESC desc;
+mTexture->GetDesc(&desc);
+desc.CPUAccessFlags = D3D10_CPU_ACCESS_READ;
+desc.Usage = D3D10_USAGE_STAGING;
+desc.BindFlags = 0;
+desc.MiscFlags = 0;
+HRESULT hr = Factory::GetDirect3D10Device()->CreateTexture2D(&desc, nullptr, byRef(dataSurf->mTexture));
+if (FAILED(hr)) {
+gfxDebug() << "Failed to create staging texture for SourceSurface. Code: " << hr;
+return nullptr;
+}
+Factory::GetDirect3D10Device()->CopyResource(dataSurf->mTexture, mTexture);
+return dataSurf;
+}
+void*
+SourceSurfaceD2DTarget::GetNativeSurface(NativeSurfaceType aType)
+{
+if (aType == NativeSurfaceType::D3D10_TEXTURE) {
+return static_cast<void*>(mTexture.get());
+}
+return nullptr;
+}
+ID3D10ShaderResourceView*
+SourceSurfaceD2DTarget::GetSRView()
+{
+if (mSRView) {
+return mSRView;
+}
+HRESULT hr = Factory::GetDirect3D10Device()->CreateShaderResourceView(mTexture, nullptr, byRef(mSRView));
+if (FAILED(hr)) {
+gfxWarning() << "Failed to create ShaderResourceView. Code: " << hr;
+}
+return mSRView;
+}
+void
+SourceSurfaceD2DTarget::DrawTargetWillChange()
+{
+RefPtr<ID3D10Texture2D> oldTexture = mTexture;
+D3D10_TEXTURE2D_DESC desc;
+mTexture->GetDesc(&desc);
+// Our original texture might implement the keyed mutex flag. We shouldn't
+// need that here. We actually specifically don't want it since we don't lock
+// our texture for usage!
+desc.MiscFlags = 0;
+// Get a copy of the surface data so the content at snapshot time was saved.
+Factory::GetDirect3D10Device()->CreateTexture2D(&desc, nullptr, byRef(mTexture));
+Factory::GetDirect3D10Device()->CopyResource(mTexture, oldTexture);
+mBitmap = nullptr;
+DrawTargetD2D::mVRAMUsageSS += desc.Width * desc.Height * BytesPerPixel(mFormat);
+mOwnsCopy = true;
+// We now no longer depend on the source surface content remaining the same.
+MarkIndependent();
+}
+ID2D1Bitmap*
+SourceSurfaceD2DTarget::GetBitmap(ID2D1RenderTarget *aRT)
+{
+if (mBitmap) {
+return mBitmap;
+}
+HRESULT hr;
+D3D10_TEXTURE2D_DESC desc;
+mTexture->GetDesc(&desc);
+IntSize size(desc.Width, desc.Height);
+RefPtr<IDXGISurface> surf;
+hr = mTexture->QueryInterface((IDXGISurface**)byRef(surf));
+if (FAILED(hr)) {
+gfxWarning() << "Failed to query interface texture to DXGISurface. Code: " << hr;
+return nullptr;
+}
+D2D1_BITMAP_PROPERTIES props = D2D1::BitmapProperties(D2DPixelFormat(mFormat));
+hr = aRT->CreateSharedBitmap(IID_IDXGISurface, surf, &props, byRef(mBitmap));
+if (FAILED(hr)) {
+// This seems to happen for SurfaceFormat::A8 sometimes...
+hr = aRT->CreateBitmap(D2D1::SizeU(desc.Width, desc.Height),
+D2D1::BitmapProperties(D2DPixelFormat(mFormat)),
+byRef(mBitmap));
+if (FAILED(hr)) {
+gfxWarning() << "Failed in CreateBitmap. Code: " << hr;
+return nullptr;
+}
+RefPtr<ID2D1RenderTarget> rt;
+if (mDrawTarget) {
+rt = mDrawTarget->mRT;
+}
+if (!rt) {
+// Okay, we already separated from our drawtarget. And we're an A8
+// surface the only way we can get to a bitmap is by creating a
+// a rendertarget and from there copying to a bitmap! Terrible!
+RefPtr<IDXGISurface> surface;
+hr = mTexture->QueryInterface((IDXGISurface**)byRef(surface));
+if (FAILED(hr)) {
+gfxWarning() << "Failed to QI texture to surface.";
+return nullptr;
+}
+D2D1_RENDER_TARGET_PROPERTIES props =
+D2D1::RenderTargetProperties(D2D1_RENDER_TARGET_TYPE_DEFAULT, D2DPixelFormat(mFormat));
+hr = DrawTargetD2D::factory()->CreateDxgiSurfaceRenderTarget(surface, props, byRef(rt));
+if (FAILED(hr)) {
+gfxWarning() << "Failed to create D2D render target for texture.";
+return nullptr;
+}
+}
+mBitmap->CopyFromRenderTarget(nullptr, rt, nullptr);
+return mBitmap;
+}
+return mBitmap;
+}
+void
+SourceSurfaceD2DTarget::MarkIndependent()
+{
+if (mDrawTarget) {
+MOZ_ASSERT(mDrawTarget->mSnapshot == this);
+mDrawTarget->mSnapshot = nullptr;
+mDrawTarget = nullptr;
+}
+}
+DataSourceSurfaceD2DTarget::DataSourceSurfaceD2DTarget(SurfaceFormat aFormat)
+: mFormat(aFormat)
+, mMapped(false)
+{
+}
+DataSourceSurfaceD2DTarget::~DataSourceSurfaceD2DTarget()
+{
+if (mMapped) {
+mTexture->Unmap(0);
+}
+}
+IntSize
+DataSourceSurfaceD2DTarget::GetSize() const
+{
+D3D10_TEXTURE2D_DESC desc;
+mTexture->GetDesc(&desc);
+return IntSize(desc.Width, desc.Height);
+}
+SurfaceFormat
+DataSourceSurfaceD2DTarget::GetFormat() const
+{
+return mFormat;
+}
+uint8_t*
+DataSourceSurfaceD2DTarget::GetData()
+{
+EnsureMapped();
+return (unsigned char*)mMap.pData;
+}
+int32_t
+DataSourceSurfaceD2DTarget::Stride()
+{
+EnsureMapped();
+return mMap.RowPitch;
+}
+bool
+DataSourceSurfaceD2DTarget::Map(MapType aMapType, MappedSurface *aMappedSurface)
+{
+// DataSourceSurfaces used with the new Map API should not be used with GetData!!
+MOZ_ASSERT(!mMapped);
+MOZ_ASSERT(!mIsMapped);
+if (!mTexture) {
+return false;
+}
+D3D10_MAP mapType;
+if (aMapType == MapType::READ) {
+mapType = D3D10_MAP_READ;
+} else if (aMapType == MapType::WRITE) {
+mapType = D3D10_MAP_WRITE;
+} else {
+mapType = D3D10_MAP_READ_WRITE;
+}
+D3D10_MAPPED_TEXTURE2D map;
+HRESULT hr = mTexture->Map(0, mapType, 0, &map);
+if (FAILED(hr)) {
+gfxWarning() << "Texture map failed with code: " << hr;
+return false;
+}
+aMappedSurface->mData = (uint8_t*)map.pData;
+aMappedSurface->mStride = map.RowPitch;
+mIsMapped = true;
+return true;
+}
+void
+DataSourceSurfaceD2DTarget::Unmap()
+{
+MOZ_ASSERT(mIsMapped);
+mIsMapped = false;
+mTexture->Unmap(0);
+}
+void
+DataSourceSurfaceD2DTarget::EnsureMapped()
+{
+// Do not use GetData() after having used Map!
+MOZ_ASSERT(!mIsMapped);
+if (!mMapped) {
+HRESULT hr = mTexture->Map(0, D3D10_MAP_READ, 0, &mMap);
+if (FAILED(hr)) {
+gfxWarning() << "Failed to map texture to memory. Code: " << hr;
+return;
+}
+mMapped = true;
+}
+}
+}
+}

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comparison: gfx/2d/SourceSurfaceD2DTarget.cpp

gfx/2d/SourceSurfaceD2DTarget.cpp