The Tor Browser / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/gfx/2d/SourceSurfaceSkia.cpp	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,120 @@
     1.4 +/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
     1.5 + * This Source Code Form is subject to the terms of the Mozilla Public
     1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
     1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
     1.8 +
     1.9 +
    1.10 +#include "Logging.h"
    1.11 +#include "SourceSurfaceSkia.h"
    1.12 +#include "skia/SkBitmap.h"
    1.13 +#include "skia/SkDevice.h"
    1.14 +#include "HelpersSkia.h"
    1.15 +#include "DrawTargetSkia.h"
    1.16 +#include "DataSurfaceHelpers.h"
    1.17 +
    1.18 +namespace mozilla {
    1.19 +namespace gfx {
    1.20 +
    1.21 +SourceSurfaceSkia::SourceSurfaceSkia()
    1.22 +  : mDrawTarget(nullptr), mLocked(false)
    1.23 +{
    1.24 +}
    1.25 +
    1.26 +SourceSurfaceSkia::~SourceSurfaceSkia()
    1.27 +{
    1.28 +  MaybeUnlock();
    1.29 +  if (mDrawTarget) {
    1.30 +    mDrawTarget->SnapshotDestroyed();
    1.31 +    mDrawTarget = nullptr;
    1.32 +  }
    1.33 +}
    1.34 +
    1.35 +IntSize
    1.36 +SourceSurfaceSkia::GetSize() const
    1.37 +{
    1.38 +  return mSize;
    1.39 +}
    1.40 +
    1.41 +SurfaceFormat
    1.42 +SourceSurfaceSkia::GetFormat() const
    1.43 +{
    1.44 +  return mFormat;
    1.45 +}
    1.46 +
    1.47 +bool
    1.48 +SourceSurfaceSkia::InitFromCanvas(SkCanvas* aCanvas,
    1.49 +                                  SurfaceFormat aFormat,
    1.50 +                                  DrawTargetSkia* aOwner)
    1.51 +{
    1.52 +  SkISize size = aCanvas->getDeviceSize();
    1.53 +
    1.54 +  mBitmap = (SkBitmap)aCanvas->getDevice()->accessBitmap(false);
    1.55 +  mFormat = aFormat;
    1.56 +
    1.57 +  mSize = IntSize(size.fWidth, size.fHeight);
    1.58 +  mStride = mBitmap.rowBytes();
    1.59 +  mDrawTarget = aOwner;
    1.60 +
    1.61 +  return true;
    1.62 +}
    1.63 +
    1.64 +bool 
    1.65 +SourceSurfaceSkia::InitFromData(unsigned char* aData,
    1.66 +                                const IntSize &aSize,
    1.67 +                                int32_t aStride,
    1.68 +                                SurfaceFormat aFormat)
    1.69 +{
    1.70 +  SkBitmap temp;
    1.71 +  temp.setConfig(GfxFormatToSkiaConfig(aFormat), aSize.width, aSize.height, aStride);
    1.72 +  temp.setPixels(aData);
    1.73 +
    1.74 +  if (!temp.copyTo(&mBitmap, GfxFormatToSkiaColorType(aFormat))) {
    1.75 +    return false;
    1.76 +  }
    1.77 +
    1.78 +  if (aFormat == SurfaceFormat::B8G8R8X8) {
    1.79 +    mBitmap.setAlphaType(kIgnore_SkAlphaType);
    1.80 +  }
    1.81 +
    1.82 +  mSize = aSize;
    1.83 +  mFormat = aFormat;
    1.84 +  mStride = mBitmap.rowBytes();
    1.85 +  return true;
    1.86 +}
    1.87 +
    1.88 +unsigned char*
    1.89 +SourceSurfaceSkia::GetData()
    1.90 +{
    1.91 +  if (!mLocked) {
    1.92 +    mBitmap.lockPixels();
    1.93 +    mLocked = true;
    1.94 +  }
    1.95 +
    1.96 +  unsigned char *pixels = (unsigned char *)mBitmap.getPixels();
    1.97 +  return pixels;
    1.98 +}
    1.99 +
   1.100 +void
   1.101 +SourceSurfaceSkia::DrawTargetWillChange()
   1.102 +{
   1.103 +  if (mDrawTarget) {
   1.104 +    MaybeUnlock();
   1.105 +
   1.106 +    mDrawTarget = nullptr;
   1.107 +    SkBitmap temp = mBitmap;
   1.108 +    mBitmap.reset();
   1.109 +    temp.copyTo(&mBitmap, temp.colorType());
   1.110 +  }
   1.111 +}
   1.112 +
   1.113 +void
   1.114 +SourceSurfaceSkia::MaybeUnlock()
   1.115 +{
   1.116 +  if (mLocked) {
   1.117 +    mBitmap.unlockPixels();
   1.118 +    mLocked = false;
   1.119 +  }
   1.120 +}
   1.121 +
   1.122 +}
   1.123 +}