gfx/skia/trunk/src/core/SkAlphaRuns.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.

michael@0 1
michael@0 2 /*
michael@0 3 * Copyright 2006 The Android Open Source Project
michael@0 4 *
michael@0 5 * Use of this source code is governed by a BSD-style license that can be
michael@0 6 * found in the LICENSE file.
michael@0 7 */
michael@0 8
michael@0 9
michael@0 10 #include "SkAntiRun.h"
michael@0 11 #include "SkUtils.h"
michael@0 12
michael@0 13 void SkAlphaRuns::reset(int width) {
michael@0 14 SkASSERT(width > 0);
michael@0 15
michael@0 16 #ifdef SK_DEBUG
michael@0 17 sk_memset16((uint16_t*)fRuns, (uint16_t)(-42), width);
michael@0 18 #endif
michael@0 19 fRuns[0] = SkToS16(width);
michael@0 20 fRuns[width] = 0;
michael@0 21 fAlpha[0] = 0;
michael@0 22
michael@0 23 SkDEBUGCODE(fWidth = width;)
michael@0 24 SkDEBUGCODE(this->validate();)
michael@0 25 }
michael@0 26
michael@0 27 #ifdef SK_DEBUG
michael@0 28 void SkAlphaRuns::assertValid(int y, int maxStep) const {
michael@0 29 int max = (y + 1) * maxStep - (y == maxStep - 1);
michael@0 30
michael@0 31 const int16_t* runs = fRuns;
michael@0 32 const uint8_t* alpha = fAlpha;
michael@0 33
michael@0 34 while (*runs) {
michael@0 35 SkASSERT(*alpha <= max);
michael@0 36 alpha += *runs;
michael@0 37 runs += *runs;
michael@0 38 }
michael@0 39 }
michael@0 40
michael@0 41 void SkAlphaRuns::dump() const {
michael@0 42 const int16_t* runs = fRuns;
michael@0 43 const uint8_t* alpha = fAlpha;
michael@0 44
michael@0 45 SkDebugf("Runs");
michael@0 46 while (*runs) {
michael@0 47 int n = *runs;
michael@0 48
michael@0 49 SkDebugf(" %02x", *alpha);
michael@0 50 if (n > 1) {
michael@0 51 SkDebugf(",%d", n);
michael@0 52 }
michael@0 53 alpha += n;
michael@0 54 runs += n;
michael@0 55 }
michael@0 56 SkDebugf("\n");
michael@0 57 }
michael@0 58
michael@0 59 void SkAlphaRuns::validate() const {
michael@0 60 SkASSERT(fWidth > 0);
michael@0 61
michael@0 62 int count = 0;
michael@0 63 const int16_t* runs = fRuns;
michael@0 64
michael@0 65 while (*runs) {
michael@0 66 SkASSERT(*runs > 0);
michael@0 67 count += *runs;
michael@0 68 SkASSERT(count <= fWidth);
michael@0 69 runs += *runs;
michael@0 70 }
michael@0 71 SkASSERT(count == fWidth);
michael@0 72 }
michael@0 73 #endif

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