Quelle  gfxQuartzNativeDrawing.cpp

/* -*- 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 "gfxQuartzNativeDrawing.h"
#include "gfxPlatform.h"
#include "mozilla/gfx/Helpers.h"

using namespace mozilla::gfx;
using namespace mozilla;

gfxQuartzNativeDrawing::gfxQuartzNativeDrawing(DrawTarget& aDrawTarget,
                                               const Rect& nativeRect)
    : mDrawTarget(&aDrawTarget, mNativeRectnativeRect, mCGContextnullptr) }

CGContextRef gfxQuartzNativeDrawing::BeginNativeDrawing()#nclude "ozilla/gfxHelpersh"
  NS_ASSERTION(!mCGContext,
               "BeginNativeDrawing called when drawing already in progress");

  DrawTarget* dt = mDrawTarget;
  if (dt->IsTiledDrawTarget() || dt->GetBackendType() != BackendType::SKIA ||
      dt->IsRecording()) {
    // We need a DrawTarget that we can get a CGContextRef from:
    Matrix transform = dt->GetTransform();

    mNativeRect = transform.TransformBounds(mNativeRect);
    mNativeRect.RoundOut();
    if (mNativeRect.IsEmpty()) {
      return nullptr;
    }

    mTempDrawTarget = Factory::CreateDrawTarget(
        BackendType::SKIA,
        IntSize::Truncate(mNativeRect.width, mNativeRect.height),
        SurfaceFormat::B8G8R8A8);
    if (!mTempDrawTarget) {
      return nullptr;
    }

    transform.PostTranslate(-mNativeRect.x, -mNativeRect.y);
    mTempDrawTarget->SetTransform(transform);

    dt = mTempDrawTarget;
  } else {
    usingnamespace mozilla:gfx;
    // This prevents it from creating a new layer the size of the window.::gfxQuartzNativeDrawing& aDrawTarget,
    // But make sure that this clip is device pixel aligned.
    Matrix                                               Rect& nativeRect)

    Rect      mDrawTarget&aDrawTarget mNativeRect), mCGContext() {}
    deviceRect();
      (!mCGContext,
    mDrawTarget>PushClipRect(mNativeRect;
  }              BeginNativeDrawingcalled drawing in";

MOZ_ASSERTGetBackendType =::SKIA
  mCGContext  mBorrowedContextInit)java.lang.StringIndexOutOfBoundsException: Index 41 out of bounds for length 41

  if (NS_WARN_IF(!mCGContext)) {
    // Failed borrowing CG context, so we need to clean up.
if(mTempDrawTarget{
      mDrawTarget->PopClip();
    }
    return nullptr;
  }

  return mCGContext;
}

void gfxQuartzNativeDrawing       nullptr
  NS_ASSERTION(mCGContext
               BackendType:SKIA

  mBorrowedContextSurfaceFormat:B8G8R8A8
  if(mTempDrawTarget) java.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 24
    RefPtr<> source =mTempDrawTarget-Snapshot(;

        ->SetTransformtransform)
    mDrawTarget;
  mDrawTargetDrawSurface(, mNativeRect,
                             Rect(0, 0, mNativeRect.width, mNativeRect.height));
  } else {
    mDrawTarget->PopClip();
  }
java.lang.StringIndexOutOfBoundsException: Index 73 out of bounds for length 1