layout/printing/PrintTranslator.cpp
author Xianzhu Wang <wangxianzhu@chromium.org>
Tue, 05 Mar 2019 12:18:01 +0000
changeset 464575 4325ba7b38576495a78289c2a8f4dff391922e66
parent 448947 6f3709b3878117466168c40affa7bca0b60cf75b
child 477798 274a9d9596a2b7a2d046e198ebcddaa4c45f82e0
permissions -rw-r--r--
Bug 1529059 [wpt PR 15420] - [BlinkGenPropertyTrees] Initiailize double_sided of synthetic effect, a=testonly Automatic update from web-platform-tests [BlinkGenPropertyTrees] Initiailize double_sided of synthetic effect Previously synthetic effects always had double_sided==false, causing the layer disappear when the backface was facing forward. Bug: 928190 Change-Id: I35534b40346d5c5918bc99c00a4ca6b4e3b68796 Reviewed-on: https://chromium-review.googlesource.com/c/1475815 Reviewed-by: Philip Rogers <pdr@chromium.org> Commit-Queue: Xianzhu Wang <wangxianzhu@chromium.org> Cr-Commit-Position: refs/heads/master@{#632764} -- wpt-commits: a89467050deaf1dcbd9140a2f0670b1b85e518ee wpt-pr: 15420

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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 "PrintTranslator.h"

#include "gfxContext.h"
#include "nsDeviceContext.h"
#include "mozilla/gfx/RecordedEvent.h"
#include "mozilla/gfx/RecordingTypes.h"
#include "mozilla/UniquePtr.h"

using namespace mozilla::gfx;

namespace mozilla {
namespace layout {

PrintTranslator::PrintTranslator(nsDeviceContext* aDeviceContext)
    : mDeviceContext(aDeviceContext) {
  RefPtr<gfxContext> context =
      mDeviceContext->CreateReferenceRenderingContext();
  mBaseDT = context->GetDrawTarget();
}

bool PrintTranslator::TranslateRecording(PRFileDescStream& aRecording) {
  uint32_t magicInt;
  ReadElement(aRecording, magicInt);
  if (magicInt != mozilla::gfx::kMagicInt) {
    return false;
  }

  uint16_t majorRevision;
  ReadElement(aRecording, majorRevision);
  if (majorRevision != kMajorRevision) {
    return false;
  }

  uint16_t minorRevision;
  ReadElement(aRecording, minorRevision);
  if (minorRevision > kMinorRevision) {
    return false;
  }

  int32_t eventType;
  ReadElement(aRecording, eventType);
  while (aRecording.good()) {
    UniquePtr<RecordedEvent> recordedEvent(RecordedEvent::LoadEventFromStream(
        aRecording, static_cast<RecordedEvent::EventType>(eventType)));

    // Make sure that the whole event was read from the stream successfully.
    if (!aRecording.good() || !recordedEvent) {
      return false;
    }

    if (!recordedEvent->PlayEvent(this)) {
      return false;
    }

    ReadElement(aRecording, eventType);
  }

  return true;
}

already_AddRefed<DrawTarget> PrintTranslator::CreateDrawTarget(
    ReferencePtr aRefPtr, const gfx::IntSize& aSize,
    gfx::SurfaceFormat aFormat) {
  RefPtr<gfxContext> context = mDeviceContext->CreateRenderingContext();
  if (!context) {
    NS_WARNING("Failed to create rendering context for print.");
    return nullptr;
  }

  RefPtr<DrawTarget> drawTarget = context->GetDrawTarget();
  AddDrawTarget(aRefPtr, drawTarget);
  return drawTarget.forget();
}

}  // namespace layout
}  // namespace mozilla