The Tor Browser: gfx/skia/trunk/src/gpu/gl/GrGLExtensions.cpp@129ffea94266 (annotated)

gfx/skia/trunk/src/gpu/gl/GrGLExtensions.cpp@129ffea94266 (annotated)

gfx/skia/trunk/src/gpu/gl/GrGLExtensions.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 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 #include "gl/GrGLExtensions.h"
 #include "gl/GrGLDefines.h"
 #include "gl/GrGLUtil.h"
 #include "SkTSearch.h"
 #include "SkTSort.h"
 namespace { // This cannot be static because it is used as a template parameter.
 inline bool extension_compare(const SkString& a, const SkString& b) {
     return strcmp(a.c_str(), b.c_str()) < 0;
 }
 }
 // finds the index of ext in strings or a negative result if ext is not found.
 static int find_string(const SkTArray<SkString>& strings, const char ext[]) {
     if (strings.empty()) {
         return -1;
     }
     SkString extensionStr(ext);
     int idx = SkTSearch<SkString, extension_compare>(&strings.front(),
                                                      strings.count(),
                                                      extensionStr,
                                                      sizeof(SkString));
     return idx;
 }
 GrGLExtensions::GrGLExtensions(const GrGLExtensions& that) : fStrings(SkNEW(SkTArray<SkString>)) {
     *this = that;
 }
 GrGLExtensions& GrGLExtensions::operator=(const GrGLExtensions& that) {
     *fStrings = *that.fStrings;
     fInitialized = that.fInitialized;
     return *this;
 }
 bool GrGLExtensions::init(GrGLStandard standard,
                           GrGLGetStringProc getString,
                           GrGLGetStringiProc getStringi,
                           GrGLGetIntegervProc getIntegerv) {
     fInitialized = false;
     fStrings->reset();
     if (NULL == getString) {
         return false;
     }
     // glGetStringi and indexed extensions were added in version 3.0 of desktop GL and ES.
     const GrGLubyte* verString = getString(GR_GL_VERSION);
     if (NULL == verString) {
         return false;
     }
     GrGLVersion version = GrGLGetVersionFromString((const char*) verString);
     bool indexed = version >= GR_GL_VER(3, 0);
     if (indexed) {
         if (NULL == getStringi || NULL == getIntegerv) {
             return false;
         }
         GrGLint extensionCnt = 0;
         getIntegerv(GR_GL_NUM_EXTENSIONS, &extensionCnt);
         fStrings->push_back_n(extensionCnt);
         for (int i = 0; i < extensionCnt; ++i) {
             const char* ext = (const char*) getStringi(GR_GL_EXTENSIONS, i);
             (*fStrings)[i] = ext;
         }
     } else {
         const char* extensions = (const char*) getString(GR_GL_EXTENSIONS);
         if (NULL == extensions) {
             return false;
         }
         while (true) {
             // skip over multiple spaces between extensions
             while (' ' == *extensions) {
                 ++extensions;
             }
             // quit once we reach the end of the string.
             if ('\0' == *extensions) {
                 break;
             }
             // we found an extension
             size_t length = strcspn(extensions, " ");
             fStrings->push_back().set(extensions, length);
             extensions += length;
         }
     }
     if (!fStrings->empty()) {
         SkTLessFunctionToFunctorAdaptor<SkString, extension_compare> cmp;
         SkTQSort(&fStrings->front(), &fStrings->back(), cmp);
     }
     fInitialized = true;
     return true;
 }
 bool GrGLExtensions::has(const char ext[]) const {
     SkASSERT(fInitialized);
     return find_string(*fStrings, ext) >= 0;
 }
 bool GrGLExtensions::remove(const char ext[]) {
     SkASSERT(fInitialized);
     int idx = find_string(*fStrings, ext);
     if (idx >= 0) {
         // This is not terribly effecient but we really only expect this function to be called at
         // most a handful of times when our test programs start.
         SkAutoTDelete< SkTArray<SkString> > oldStrings(fStrings.detach());
         fStrings.reset(SkNEW(SkTArray<SkString>(oldStrings->count() - 1)));
         fStrings->push_back_n(idx, &oldStrings->front());
         fStrings->push_back_n(oldStrings->count() - idx - 1, &(*oldStrings)[idx] + 1);
         return true;
     } else {
         return false;
     }
 }
 void GrGLExtensions::add(const char ext[]) {
     int idx = find_string(*fStrings, ext);
     if (idx < 0) {
         // This is not the most effecient approach since we end up doing a full sort of the
         // extensions after the add
         fStrings->push_back().set(ext);
         SkTLessFunctionToFunctorAdaptor<SkString, extension_compare> cmp;
         SkTQSort(&fStrings->front(), &fStrings->back(), cmp);
     }
 }
 void GrGLExtensions::print(const char* sep) const {
     if (NULL == sep) {
         sep = " ";
     }
     int cnt = fStrings->count();
     for (int i = 0; i < cnt; ++i) {
         GrPrintf("%s%s", (*fStrings)[i].c_str(), (i < cnt - 1) ? sep : "");
     }
 }

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gfx/skia/trunk/src/gpu/gl/GrGLExtensions.cpp@129ffea94266 (annotated)

gfx/skia/trunk/src/gpu/gl/GrGLExtensions.cpp