The Tor Browser: gfx/skia/trunk/src/image/SkImage_Raster.cpp@129ffea94266 (annotated)

gfx/skia/trunk/src/image/SkImage_Raster.cpp@129ffea94266 (annotated)

gfx/skia/trunk/src/image/SkImage_Raster.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.

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 #include "SkImage_Base.h"
 #include "SkImagePriv.h"
 #include "SkBitmap.h"
 #include "SkCanvas.h"
 #include "SkData.h"
 #include "SkMallocPixelRef.h"
 class SkImage_Raster : public SkImage_Base {
 public:
     static bool ValidArgs(const Info& info, size_t rowBytes) {
         const int maxDimension = SK_MaxS32 >> 2;
         const size_t kMaxPixelByteSize = SK_MaxS32;
         if (info.fWidth < 0 || info.fHeight < 0) {
             return false;
         }
         if (info.fWidth > maxDimension || info.fHeight > maxDimension) {
             return false;
         }
         if ((unsigned)info.fColorType > (unsigned)kLastEnum_SkColorType) {
             return false;
         }
         if ((unsigned)info.fAlphaType > (unsigned)kLastEnum_SkAlphaType) {
             return false;
         }
         if (SkImageInfoToBitmapConfig(info) == SkBitmap::kNo_Config) {
             return false;
         }
         // TODO: check colorspace
         if (rowBytes < SkImageMinRowBytes(info)) {
             return false;
         }
         int64_t size = (int64_t)info.fHeight * rowBytes;
         if (size > (int64_t)kMaxPixelByteSize) {
             return false;
         }
         return true;
     }
     static SkImage* NewEmpty();
     SkImage_Raster(const SkImageInfo&, SkData*, size_t rb);
     virtual ~SkImage_Raster();
     virtual void onDraw(SkCanvas*, SkScalar, SkScalar, const SkPaint*) SK_OVERRIDE;
     virtual void onDrawRectToRect(SkCanvas*, const SkRect*, const SkRect&, const SkPaint*) SK_OVERRIDE;
     virtual bool onReadPixels(SkBitmap*, const SkIRect&) const SK_OVERRIDE;
     virtual const void* onPeekPixels(SkImageInfo*, size_t* /*rowBytes*/) const SK_OVERRIDE;
     virtual bool getROPixels(SkBitmap*) const SK_OVERRIDE;
     // exposed for SkSurface_Raster via SkNewImageFromPixelRef
     SkImage_Raster(const SkImageInfo&, SkPixelRef*, size_t rowBytes);
     SkPixelRef* getPixelRef() const { return fBitmap.pixelRef(); }
 private:
     SkImage_Raster() : INHERITED(0, 0) {}
     SkBitmap    fBitmap;
     typedef SkImage_Base INHERITED;
 };
 ///////////////////////////////////////////////////////////////////////////////
 SkImage* SkImage_Raster::NewEmpty() {
     // Returns lazily created singleton
     static SkImage* gEmpty;
     if (NULL == gEmpty) {
         gEmpty = SkNEW(SkImage_Raster);
     }
     gEmpty->ref();
     return gEmpty;
 }
 static void release_data(void* addr, void* context) {
     SkData* data = static_cast<SkData*>(context);
     data->unref();
 }
 SkImage_Raster::SkImage_Raster(const Info& info, SkData* data, size_t rowBytes)
     : INHERITED(info.fWidth, info.fHeight)
 {
     data->ref();
     void* addr = const_cast<void*>(data->data());
     fBitmap.installPixels(info, addr, rowBytes, release_data, data);
     fBitmap.setImmutable();
     fBitmap.lockPixels();
 }
 SkImage_Raster::SkImage_Raster(const Info& info, SkPixelRef* pr, size_t rowBytes)
     : INHERITED(info.fWidth, info.fHeight)
 {
     fBitmap.setConfig(info, rowBytes);
     fBitmap.setPixelRef(pr);
     fBitmap.lockPixels();
 }
 SkImage_Raster::~SkImage_Raster() {}
 void SkImage_Raster::onDraw(SkCanvas* canvas, SkScalar x, SkScalar y, const SkPaint* paint) {
     canvas->drawBitmap(fBitmap, x, y, paint);
 }
 void SkImage_Raster::onDrawRectToRect(SkCanvas* canvas, const SkRect* src,
                                       const SkRect& dst, const SkPaint* paint) {
     canvas->drawBitmapRectToRect(fBitmap, src, dst, paint);
 }
 bool SkImage_Raster::onReadPixels(SkBitmap* dst, const SkIRect& subset) const {
     if (dst->pixelRef()) {
         return this->INHERITED::onReadPixels(dst, subset);
     } else {
         SkBitmap src;
         if (!fBitmap.extractSubset(&src, subset)) {
             return false;
         }
         return src.copyTo(dst, src.colorType());
     }
 }
 const void* SkImage_Raster::onPeekPixels(SkImageInfo* infoPtr,
                                          size_t* rowBytesPtr) const {
     SkImageInfo info;
     if (!fBitmap.asImageInfo(&info) || !fBitmap.getPixels()) {
         return NULL;
     }
     *infoPtr = info;
     *rowBytesPtr = fBitmap.rowBytes();
     return fBitmap.getPixels();
 }
 bool SkImage_Raster::getROPixels(SkBitmap* dst) const {
     *dst = fBitmap;
     return true;
 }
 ///////////////////////////////////////////////////////////////////////////////
 SkImage* SkImage::NewRasterCopy(const SkImageInfo& info, const void* pixels, size_t rowBytes) {
     if (!SkImage_Raster::ValidArgs(info, rowBytes)) {
         return NULL;
     }
     if (0 == info.fWidth && 0 == info.fHeight) {
         return SkImage_Raster::NewEmpty();
     }
     // check this after empty-check
     if (NULL == pixels) {
         return NULL;
     }
     // Here we actually make a copy of the caller's pixel data
     SkAutoDataUnref data(SkData::NewWithCopy(pixels, info.fHeight * rowBytes));
     return SkNEW_ARGS(SkImage_Raster, (info, data, rowBytes));
 }
 SkImage* SkImage::NewRasterData(const SkImageInfo& info, SkData* data, size_t rowBytes) {
     if (!SkImage_Raster::ValidArgs(info, rowBytes)) {
         return NULL;
     }
     if (0 == info.fWidth && 0 == info.fHeight) {
         return SkImage_Raster::NewEmpty();
     }
     // check this after empty-check
     if (NULL == data) {
         return NULL;
     }
     // did they give us enough data?
     size_t size = info.fHeight * rowBytes;
     if (data->size() < size) {
         return NULL;
     }
     return SkNEW_ARGS(SkImage_Raster, (info, data, rowBytes));
 }
 SkImage* SkNewImageFromPixelRef(const SkImageInfo& info, SkPixelRef* pr,
                                 size_t rowBytes) {
     return SkNEW_ARGS(SkImage_Raster, (info, pr, rowBytes));
 }
 SkPixelRef* SkBitmapImageGetPixelRef(SkImage* image) {
     return ((SkImage_Raster*)image)->getPixelRef();
 }

The Tor Browser / annotate

gfx/skia/trunk/src/image/SkImage_Raster.cpp@129ffea94266 (annotated)

gfx/skia/trunk/src/image/SkImage_Raster.cpp