The Tor Browser: gfx/layers/d3d10/ThebesLayerD3D10.cpp@129ffea94266 (annotated)

gfx/layers/d3d10/ThebesLayerD3D10.cpp@129ffea94266 (annotated)

gfx/layers/d3d10/ThebesLayerD3D10.cpp

Sat, 03 Jan 2015 20:18:00 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Sat, 03 Jan 2015 20:18:00 +0100
branch: TOR_BUG_3246
changeset 7: 129ffea94266
permissions: -rw-r--r--

Conditionally enable double key logic according to:
private browsing mode or privacy.thirdparty.isolate preference and
implement in GetCookieStringCommon and FindCookie where it counts...
With some reservations of how to convince FindCookie users to test
condition and pass a nullptr when disabling double key logic.

 /* -*- 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 "mozilla/layers/PLayerTransaction.h"
 // This must occur *after* layers/PLayerTransaction.h to avoid
 // typedefs conflicts.
 #include "mozilla/ArrayUtils.h"
 #include "ThebesLayerD3D10.h"
 #include "gfxPlatform.h"
 #include "gfxWindowsPlatform.h"
 #ifdef CAIRO_HAS_D2D_SURFACE
 #include "gfxD2DSurface.h"
 #endif
 #include "../d3d9/Nv3DVUtils.h"
 #include "gfxTeeSurface.h"
 #include "gfxUtils.h"
 #include "ReadbackLayer.h"
 #include "ReadbackProcessor.h"
 #include "mozilla/Preferences.h"
 #include "mozilla/gfx/2D.h"
 using namespace mozilla::gfx;
 namespace mozilla {
 namespace layers {
 ThebesLayerD3D10::ThebesLayerD3D10(LayerManagerD3D10 *aManager)
   : ThebesLayer(aManager, nullptr)
   , LayerD3D10(aManager)
   , mCurrentSurfaceMode(SurfaceMode::SURFACE_OPAQUE)
 {
   mImplData = static_cast<LayerD3D10*>(this);
 }
 ThebesLayerD3D10::~ThebesLayerD3D10()
 {
 }
 void
 ThebesLayerD3D10::InvalidateRegion(const nsIntRegion &aRegion)
 {
   mInvalidRegion.Or(mInvalidRegion, aRegion);
   mInvalidRegion.SimplifyOutward(20);
   mValidRegion.Sub(mValidRegion, mInvalidRegion);
 }
 void ThebesLayerD3D10::CopyRegion(ID3D10Texture2D* aSrc, const nsIntPoint &aSrcOffset,
                                   ID3D10Texture2D* aDest, const nsIntPoint &aDestOffset,
                                   const nsIntRegion &aCopyRegion, nsIntRegion* aValidRegion)
 {
   nsIntRegion retainedRegion;
   nsIntRegionRectIterator iter(aCopyRegion);
   const nsIntRect *r;
   while ((r = iter.Next())) {
     // Calculate the retained rectangle's position on the old and the new
     // surface.
     D3D10_BOX box;
     box.left = r->x - aSrcOffset.x;
     box.top = r->y - aSrcOffset.y;
     box.right = box.left + r->width;
     box.bottom = box.top + r->height;
     box.back = 1;
     box.front = 0;
     device()->CopySubresourceRegion(aDest, 0,
                                     r->x - aDestOffset.x,
                                     r->y - aDestOffset.y,
 ,
                                     aSrc, 0,
                                     &box);
     retainedRegion.Or(retainedRegion, *r);
   }
   // Areas which were valid and were retained are still valid
   aValidRegion->And(*aValidRegion, retainedRegion);
 }
 void
 ThebesLayerD3D10::RenderLayer()
 {
   if (!mTexture) {
     return;
   }
   SetEffectTransformAndOpacity();
   ID3D10EffectTechnique *technique;
   switch (mCurrentSurfaceMode) {
   case SurfaceMode::SURFACE_COMPONENT_ALPHA:
     technique = SelectShader(SHADER_COMPONENT_ALPHA | LoadMaskTexture());
     break;
   case SurfaceMode::SURFACE_OPAQUE:
     technique = SelectShader(SHADER_RGB | SHADER_PREMUL | LoadMaskTexture());
     break;
   case SurfaceMode::SURFACE_SINGLE_CHANNEL_ALPHA:
     technique = SelectShader(SHADER_RGBA | SHADER_PREMUL | LoadMaskTexture());
     break;
   default:
     NS_ERROR("Unknown mode");
     return;
   }
   nsIntRegionRectIterator iter(mVisibleRegion);
   const nsIntRect *iterRect;
   if (mSRView) {
     effect()->GetVariableByName("tRGB")->AsShaderResource()->SetResource(mSRView);
   }
   if (mSRViewOnWhite) {
     effect()->GetVariableByName("tRGBWhite")->AsShaderResource()->SetResource(mSRViewOnWhite);
   }
   while ((iterRect = iter.Next())) {
     effect()->GetVariableByName("vLayerQuad")->AsVector()->SetFloatVector(
       ShaderConstantRectD3D10(
         (float)iterRect->x,
         (float)iterRect->y,
         (float)iterRect->width,
         (float)iterRect->height)
       );
     effect()->GetVariableByName("vTextureCoords")->AsVector()->SetFloatVector(
       ShaderConstantRectD3D10(
         (float)(iterRect->x - mTextureRect.x) / (float)mTextureRect.width,
         (float)(iterRect->y - mTextureRect.y) / (float)mTextureRect.height,
         (float)iterRect->width / (float)mTextureRect.width,
         (float)iterRect->height / (float)mTextureRect.height)
       );
     technique->GetPassByIndex(0)->Apply(0);
     device()->Draw(4, 0);
   }
   // Set back to default.
   effect()->GetVariableByName("vTextureCoords")->AsVector()->
     SetFloatVector(ShaderConstantRectD3D10(0, 0, 1.0f, 1.0f));
 }
 void
 ThebesLayerD3D10::Validate(ReadbackProcessor *aReadback)
 {
   if (mVisibleRegion.IsEmpty()) {
     return;
   }
   if (FAILED(gfxWindowsPlatform::GetPlatform()->GetD3D10Device()->GetDeviceRemovedReason())) {
     // Device removed, this will be discovered on the next rendering pass.
     // Do no validate.
     return;
   }
   nsIntRect newTextureRect = mVisibleRegion.GetBounds();
   SurfaceMode mode = GetSurfaceMode();
   if (mode == SurfaceMode::SURFACE_COMPONENT_ALPHA &&
       (!mParent || !mParent->SupportsComponentAlphaChildren())) {
     mode = SurfaceMode::SURFACE_SINGLE_CHANNEL_ALPHA;
   }
   // If we have a transform that requires resampling of our texture, then
   // we need to make sure we don't sample pixels that haven't been drawn.
   // We clamp sample coordinates to the texture rect, but when the visible region
   // doesn't fill the entire texture rect we need to make sure we draw all the
   // pixels in the texture rect anyway in case they get sampled.
   nsIntRegion neededRegion = mVisibleRegion;
   if (!neededRegion.GetBounds().IsEqualInterior(newTextureRect) ||
       neededRegion.GetNumRects() > 1) {
     if (MayResample()) {
       neededRegion = newTextureRect;
       if (mode == SurfaceMode::SURFACE_OPAQUE) {
         // We're going to paint outside the visible region, but layout hasn't
         // promised that it will paint opaquely there, so we'll have to
         // treat this layer as transparent.
         mode = SurfaceMode::SURFACE_SINGLE_CHANNEL_ALPHA;
       }
     }
   }
   mCurrentSurfaceMode = mode;
   VerifyContentType(mode);
   nsTArray<ReadbackProcessor::Update> readbackUpdates;
   nsIntRegion readbackRegion;
   if (aReadback && UsedForReadback()) {
     aReadback->GetThebesLayerUpdates(this, &readbackUpdates, &readbackRegion);
   }
   if (mTexture) {
     if (!mTextureRect.IsEqualInterior(newTextureRect)) {
       nsRefPtr<ID3D10Texture2D> oldTexture = mTexture;
       mTexture = nullptr;
       nsRefPtr<ID3D10Texture2D> oldTextureOnWhite = mTextureOnWhite;
       mTextureOnWhite = nullptr;
       nsIntRegion retainRegion = mTextureRect;
       // Old visible region will become the region that is covered by both the
       // old and the new visible region.
       retainRegion.And(retainRegion, mVisibleRegion);
       // No point in retaining parts which were not valid.
       retainRegion.And(retainRegion, mValidRegion);
       CreateNewTextures(gfx::IntSize(newTextureRect.width, newTextureRect.height), mode);
       nsIntRect largeRect = retainRegion.GetLargestRectangle();
       // If we had no hardware texture before, or have no retained area larger than
       // the retention threshold, we're not retaining and are done here.
       // If our texture creation failed this can mean a device reset is pending
       // and we should silently ignore the failure. In the future when device
       // failures are properly handled we should test for the type of failure
       // and gracefully handle different failures. See bug 569081.
       if (!oldTexture || !mTexture) {
         mValidRegion.SetEmpty();
       } else {
         CopyRegion(oldTexture, mTextureRect.TopLeft(),
                    mTexture, newTextureRect.TopLeft(),
                    retainRegion, &mValidRegion);
         if (oldTextureOnWhite) {
           CopyRegion(oldTextureOnWhite, mTextureRect.TopLeft(),
                      mTextureOnWhite, newTextureRect.TopLeft(),
                      retainRegion, &mValidRegion);
         }
       }
     }
   }
   mTextureRect = newTextureRect;
   if (!mTexture || (mode == SurfaceMode::SURFACE_COMPONENT_ALPHA && !mTextureOnWhite)) {
     CreateNewTextures(gfx::IntSize(newTextureRect.width, newTextureRect.height), mode);
     mValidRegion.SetEmpty();
   }
   nsIntRegion drawRegion;
   drawRegion.Sub(neededRegion, mValidRegion);
   if (!drawRegion.IsEmpty()) {
     LayerManagerD3D10::CallbackInfo cbInfo = mD3DManager->GetCallbackInfo();
     if (!cbInfo.Callback) {
       NS_ERROR("D3D10 should never need to update ThebesLayers in an empty transaction");
       return;
     }
     DrawRegion(drawRegion, mode);
     if (readbackUpdates.Length() > 0) {
       CD3D10_TEXTURE2D_DESC desc(DXGI_FORMAT_B8G8R8A8_UNORM,
                                  newTextureRect.width, newTextureRect.height,
 , 1, 0, D3D10_USAGE_STAGING,
                                  D3D10_CPU_ACCESS_READ);
       nsRefPtr<ID3D10Texture2D> readbackTexture;
       HRESULT hr = device()->CreateTexture2D(&desc, nullptr, getter_AddRefs(readbackTexture));
       if (FAILED(hr)) {
         LayerManagerD3D10::ReportFailure(NS_LITERAL_CSTRING("ThebesLayerD3D10::Validate(): Failed to create texture"),
                                          hr);
         return;
       }
       device()->CopyResource(readbackTexture, mTexture);
       for (uint32_t i = 0; i < readbackUpdates.Length(); i++) {
         mD3DManager->readbackManager()->PostTask(readbackTexture,
                                                  &readbackUpdates[i],
                                                  gfxPoint(newTextureRect.x, newTextureRect.y));
       }
     }
     mValidRegion = neededRegion;
   }
 }
 void
 ThebesLayerD3D10::LayerManagerDestroyed()
 {
   mD3DManager = nullptr;
 }
 Layer*
 ThebesLayerD3D10::GetLayer()
 {
   return this;
 }
 void
 ThebesLayerD3D10::VerifyContentType(SurfaceMode aMode)
 {
   if (mD2DSurface) {
     gfxContentType type = aMode != SurfaceMode::SURFACE_SINGLE_CHANNEL_ALPHA ?
       gfxContentType::COLOR : gfxContentType::COLOR_ALPHA;
     if (type != mD2DSurface->GetContentType()) {
       mD2DSurface = new gfxD2DSurface(mTexture, type);
       if (!mD2DSurface || mD2DSurface->CairoStatus()) {
         NS_WARNING("Failed to create surface for ThebesLayerD3D10.");
         mD2DSurface = nullptr;
         return;
       }
       mValidRegion.SetEmpty();
     }
   } else if (mDrawTarget) {
     SurfaceFormat format = aMode != SurfaceMode::SURFACE_SINGLE_CHANNEL_ALPHA ?
       SurfaceFormat::B8G8R8X8 : SurfaceFormat::B8G8R8A8;
     if (format != mDrawTarget->GetFormat()) {
       mDrawTarget = Factory::CreateDrawTargetForD3D10Texture(mTexture, format);
       if (!mDrawTarget) {
         NS_WARNING("Failed to create drawtarget for ThebesLayerD3D10.");
         return;
       }
       mValidRegion.SetEmpty();
     }
   }
   if (aMode != SurfaceMode::SURFACE_COMPONENT_ALPHA && mTextureOnWhite) {
     // If we've transitioned away from component alpha, we can delete those resources.
     mD2DSurfaceOnWhite = nullptr;
     mSRViewOnWhite = nullptr;
     mTextureOnWhite = nullptr;
     mValidRegion.SetEmpty();
   }
 }
 void
 ThebesLayerD3D10::FillTexturesBlackWhite(const nsIntRegion& aRegion, const nsIntPoint& aOffset)
 {
   if (mTexture && mTextureOnWhite) {
     // It would be more optimal to draw the actual geometry, but more code
     // and probably not worth the win here as this will often be a single
     // rect.
     nsRefPtr<ID3D10RenderTargetView> oldRT;
     device()->OMGetRenderTargets(1, getter_AddRefs(oldRT), nullptr);
     nsRefPtr<ID3D10RenderTargetView> viewBlack;
     nsRefPtr<ID3D10RenderTargetView> viewWhite;
     device()->CreateRenderTargetView(mTexture, nullptr, getter_AddRefs(viewBlack));
     device()->CreateRenderTargetView(mTextureOnWhite, nullptr, getter_AddRefs(viewWhite));
     D3D10_RECT oldScissor;
     UINT numRects = 1;
     device()->RSGetScissorRects(&numRects, &oldScissor);
     D3D10_TEXTURE2D_DESC desc;
     mTexture->GetDesc(&desc);
     D3D10_RECT scissor = { 0, 0, desc.Width, desc.Height };
     device()->RSSetScissorRects(1, &scissor);
     mD3DManager->SetupInputAssembler();
     nsIntSize oldVP = mD3DManager->GetViewport();
     mD3DManager->SetViewport(nsIntSize(desc.Width, desc.Height));
     ID3D10RenderTargetView *views[2] = { viewBlack, viewWhite };
     device()->OMSetRenderTargets(2, views, nullptr);
     gfx3DMatrix transform;
     transform.Translate(gfxPoint3D(-aOffset.x, -aOffset.y, 0));
     void* raw = &const_cast<gfx3DMatrix&>(transform)._11;
     effect()->GetVariableByName("mLayerTransform")->SetRawValue(raw, 0, 64);
     ID3D10EffectTechnique *technique =
       effect()->GetTechniqueByName("PrepareAlphaExtractionTextures");
     nsIntRegionRectIterator iter(aRegion);
     const nsIntRect *iterRect;
     while ((iterRect = iter.Next())) {
       effect()->GetVariableByName("vLayerQuad")->AsVector()->SetFloatVector(
         ShaderConstantRectD3D10(
           (float)iterRect->x,
           (float)iterRect->y,
           (float)iterRect->width,
           (float)iterRect->height)
         );
       technique->GetPassByIndex(0)->Apply(0);
       device()->Draw(4, 0);
     }
     views[0] = oldRT;
     device()->OMSetRenderTargets(1, views, nullptr);
     mD3DManager->SetViewport(oldVP);
     device()->RSSetScissorRects(1, &oldScissor);
   }
 }
 void
 ThebesLayerD3D10::DrawRegion(nsIntRegion &aRegion, SurfaceMode aMode)
 {
   nsIntRect visibleRect = mVisibleRegion.GetBounds();
   if (!mD2DSurface && !mDrawTarget) {
     return;
   }
   aRegion.SimplifyOutwardByArea(100 * 100);
   nsRefPtr<gfxASurface> destinationSurface;
   if (aMode == SurfaceMode::SURFACE_COMPONENT_ALPHA) {
     FillTexturesBlackWhite(aRegion, visibleRect.TopLeft());
   } else {
     destinationSurface = mD2DSurface;
   }
   MOZ_ASSERT(mDrawTarget);
   nsRefPtr<gfxContext> context = new gfxContext(mDrawTarget);
   context->Translate(gfxPoint(-visibleRect.x, -visibleRect.y));
   if (aMode == SurfaceMode::SURFACE_SINGLE_CHANNEL_ALPHA) {
     nsIntRegionRectIterator iter(aRegion);
     const nsIntRect *iterRect;
     while ((iterRect = iter.Next())) {
       mDrawTarget->ClearRect(Rect(iterRect->x, iterRect->y, iterRect->width, iterRect->height));
     }
   }
   mDrawTarget->SetPermitSubpixelAA(!(mContentFlags & CONTENT_COMPONENT_ALPHA));
   LayerManagerD3D10::CallbackInfo cbInfo = mD3DManager->GetCallbackInfo();
   cbInfo.Callback(this, context, aRegion, DrawRegionClip::DRAW, nsIntRegion(), cbInfo.CallbackData);
 }
 void
 ThebesLayerD3D10::CreateNewTextures(const gfx::IntSize &aSize, SurfaceMode aMode)
 {
   if (aSize.width == 0 || aSize.height == 0) {
     // Nothing to do.
     return;
   }
   CD3D10_TEXTURE2D_DESC desc(DXGI_FORMAT_B8G8R8A8_UNORM, aSize.width, aSize.height, 1, 1);
   desc.BindFlags = D3D10_BIND_RENDER_TARGET | D3D10_BIND_SHADER_RESOURCE;
   desc.MiscFlags = D3D10_RESOURCE_MISC_GDI_COMPATIBLE;
   HRESULT hr;
   if (!mTexture) {
     hr = device()->CreateTexture2D(&desc, nullptr, getter_AddRefs(mTexture));
     if (FAILED(hr)) {
       NS_WARNING("Failed to create new texture for ThebesLayerD3D10!");
       return;
     }
     hr = device()->CreateShaderResourceView(mTexture, nullptr, getter_AddRefs(mSRView));
     if (FAILED(hr)) {
       NS_WARNING("Failed to create shader resource view for ThebesLayerD3D10.");
     }
     mDrawTarget = nullptr;
   }
   if (aMode == SurfaceMode::SURFACE_COMPONENT_ALPHA && !mTextureOnWhite) {
     hr = device()->CreateTexture2D(&desc, nullptr, getter_AddRefs(mTextureOnWhite));
     if (FAILED(hr)) {
       NS_WARNING("Failed to create new texture for ThebesLayerD3D10!");
       return;
     }
     hr = device()->CreateShaderResourceView(mTextureOnWhite, nullptr, getter_AddRefs(mSRViewOnWhite));
     if (FAILED(hr)) {
       NS_WARNING("Failed to create shader resource view for ThebesLayerD3D10.");
     }
     mDrawTarget = nullptr;
   }
   if (!mDrawTarget) {
     if (aMode == SurfaceMode::SURFACE_COMPONENT_ALPHA) {
       mDrawTarget = Factory::CreateDualDrawTargetForD3D10Textures(mTexture, mTextureOnWhite, SurfaceFormat::B8G8R8X8);
     } else {
       mDrawTarget = Factory::CreateDrawTargetForD3D10Texture(mTexture, aMode != SurfaceMode::SURFACE_SINGLE_CHANNEL_ALPHA ?
         SurfaceFormat::B8G8R8X8 : SurfaceFormat::B8G8R8A8);
     }
     if (!mDrawTarget) {
       NS_WARNING("Failed to create DrawTarget for ThebesLayerD3D10.");
       mDrawTarget = nullptr;
       return;
     }
   }
 }
 } /* namespace layers */
 } /* namespace mozilla */

The Tor Browser / annotate

gfx/layers/d3d10/ThebesLayerD3D10.cpp@129ffea94266 (annotated)

gfx/layers/d3d10/ThebesLayerD3D10.cpp