The Tor Browser: gfx/skia/trunk/src/core/SkImageInfo.cpp@97036ab72558

Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.

     1 /*

     2  * Copyright 2010 Google Inc.

     3  *

     4  * Use of this source code is governed by a BSD-style license that can be

     5  * found in the LICENSE file.

     6  */

     8 #include "SkImageInfo.h"

     9 #include "SkReadBuffer.h"

    10 #include "SkWriteBuffer.h"

    12 static bool alpha_type_is_valid(SkAlphaType alphaType) {

    13     return (alphaType >= 0) && (alphaType <= kLastEnum_SkAlphaType);

    14 }

    16 static bool color_type_is_valid(SkColorType colorType) {

    17     return (colorType >= 0) && (colorType <= kLastEnum_SkColorType);

    18 }

    20 void SkImageInfo::unflatten(SkReadBuffer& buffer) {

    21     fWidth = buffer.read32();

    22     fHeight = buffer.read32();

    24     uint32_t packed = buffer.read32();

    25     SkASSERT(0 == (packed >> 16));

    26     fAlphaType = (SkAlphaType)((packed >> 8) & 0xFF);

    27     fColorType = (SkColorType)((packed >> 0) & 0xFF);

    28     buffer.validate(alpha_type_is_valid(fAlphaType) &&

    29                     color_type_is_valid(fColorType));

    30 }

    32 void SkImageInfo::flatten(SkWriteBuffer& buffer) const {

    33     buffer.write32(fWidth);

    34     buffer.write32(fHeight);

    36     SkASSERT(0 == (fAlphaType & ~0xFF));

    37     SkASSERT(0 == (fColorType & ~0xFF));

    38     uint32_t packed = (fAlphaType << 8) | fColorType;

    39     buffer.write32(packed);

    40 }

The Tor Browser / file revision

gfx/skia/trunk/src/core/SkImageInfo.cpp@97036ab72558

gfx/skia/trunk/src/core/SkImageInfo.cpp