The Tor Browser: gfx/skia/trunk/src/core/SkMask.cpp@129ffea94266

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.

     1 /*

     2  * Copyright 2007 The Android Open Source Project

     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 "SkMask.h"

    10 /** returns the product if it is positive and fits in 31 bits. Otherwise this

    11     returns 0.

    12  */

    13 static int32_t safeMul32(int32_t a, int32_t b) {

    14     int64_t size = sk_64_mul(a, b);

    15     if (size > 0 && sk_64_isS32(size)) {

    16         return sk_64_asS32(size);

    17     }

    18     return 0;

    19 }

    21 size_t SkMask::computeImageSize() const {

    22     return safeMul32(fBounds.height(), fRowBytes);

    23 }

    25 size_t SkMask::computeTotalImageSize() const {

    26     size_t size = this->computeImageSize();

    27     if (fFormat == SkMask::k3D_Format) {

    28         size = safeMul32(SkToS32(size), 3);

    29     }

    30     return size;

    31 }

    33 /** We explicitly use this allocator for SkBimap pixels, so that we can

    34     freely assign memory allocated by one class to the other.

    35 */

    36 uint8_t* SkMask::AllocImage(size_t size) {

    37     return (uint8_t*)sk_malloc_throw(SkAlign4(size));

    38 }

    40 /** We explicitly use this allocator for SkBimap pixels, so that we can

    41     freely assign memory allocated by one class to the other.

    42 */

    43 void SkMask::FreeImage(void* image) {

    44     sk_free(image);

    45 }

    47 ///////////////////////////////////////////////////////////////////////////////

    49 static const int gMaskFormatToShift[] = {

    50     ~0, // BW -- not supported

    51     0,  // A8

    52     0,  // 3D

    53     2,  // ARGB32

    54     1,  // LCD16

    55     2   // LCD32

    56 };

    58 static int maskFormatToShift(SkMask::Format format) {

    59     SkASSERT((unsigned)format < SK_ARRAY_COUNT(gMaskFormatToShift));

    60     SkASSERT(SkMask::kBW_Format != format);

    61     return gMaskFormatToShift[format];

    62 }

    64 void* SkMask::getAddr(int x, int y) const {

    65     SkASSERT(kBW_Format != fFormat);

    66     SkASSERT(fBounds.contains(x, y));

    67     SkASSERT(fImage);

    69     char* addr = (char*)fImage;

    70     addr += (y - fBounds.fTop) * fRowBytes;

    71     addr += (x - fBounds.fLeft) << maskFormatToShift(fFormat);

    72     return addr;

    73 }

The Tor Browser / file revision

gfx/skia/trunk/src/core/SkMask.cpp@129ffea94266

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