The Tor Browser: gfx/2d/unittest/TestDrawTargetBase.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 /* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-

     2  * This Source Code Form is subject to the terms of the Mozilla Public

     3  * License, v. 2.0. If a copy of the MPL was not distributed with this

     4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

     6 #include "TestDrawTargetBase.h"

     7 #include <sstream>

     9 using namespace mozilla;

    10 using namespace mozilla::gfx;

    11 using namespace std;

    13 TestDrawTargetBase::TestDrawTargetBase()

    14 {

    15   REGISTER_TEST(TestDrawTargetBase, Initialized);

    16   REGISTER_TEST(TestDrawTargetBase, FillCompletely);

    17   REGISTER_TEST(TestDrawTargetBase, FillRect);

    18 }

    20 void

    21 TestDrawTargetBase::Initialized()

    22 {

    23   VERIFY(mDT);

    24 }

    26 void

    27 TestDrawTargetBase::FillCompletely()

    28 {

    29   mDT->FillRect(Rect(0, 0, DT_WIDTH, DT_HEIGHT), ColorPattern(Color(0, 0.5f, 0, 1.0f)));

    31   RefreshSnapshot();

    33   VerifyAllPixels(Color(0, 0.5f, 0, 1.0f));

    34 }

    36 void

    37 TestDrawTargetBase::FillRect()

    38 {

    39   mDT->FillRect(Rect(0, 0, DT_WIDTH, DT_HEIGHT), ColorPattern(Color(0, 0.5f, 0, 1.0f)));

    40   mDT->FillRect(Rect(50, 50, 50, 50), ColorPattern(Color(0.5f, 0, 0, 1.0f)));

    42   RefreshSnapshot();

    44   VerifyPixel(IntPoint(49, 49), Color(0, 0.5f, 0, 1.0f));

    45   VerifyPixel(IntPoint(50, 50), Color(0.5f, 0, 0, 1.0f));

    46   VerifyPixel(IntPoint(99, 99), Color(0.5f, 0, 0, 1.0f));

    47   VerifyPixel(IntPoint(100, 100), Color(0, 0.5f, 0, 1.0f));

    48 }

    50 void

    51 TestDrawTargetBase::RefreshSnapshot()

    52 {

    53   RefPtr<SourceSurface> snapshot = mDT->Snapshot();

    54   mDataSnapshot = snapshot->GetDataSurface();

    55 }

    57 void

    58 TestDrawTargetBase::VerifyAllPixels(const Color &aColor)

    59 {

    60   uint32_t *colVal = (uint32_t*)mDataSnapshot->GetData();

    62   uint32_t expected = RGBAPixelFromColor(aColor);

    64   for (int y = 0; y < DT_HEIGHT; y++) {

    65     for (int x = 0; x < DT_WIDTH; x++) {

    66       if (colVal[y * (mDataSnapshot->Stride() / 4) + x] != expected) {

    67         LogMessage("VerifyAllPixels Failed\n");

    68         mTestFailed = true;

    69         return;

    70       }

    71     }

    72   }

    73 }

    75 void

    76 TestDrawTargetBase::VerifyPixel(const IntPoint &aPoint, mozilla::gfx::Color &aColor)

    77 {

    78   uint32_t *colVal = (uint32_t*)mDataSnapshot->GetData();

    80   uint32_t expected = RGBAPixelFromColor(aColor);

    81   uint32_t rawActual = colVal[aPoint.y * (mDataSnapshot->Stride() / 4) + aPoint.x];

    83   if (rawActual != expected) {

    84     stringstream message;

    85     uint32_t actb = rawActual & 0xFF;

    86     uint32_t actg = (rawActual & 0xFF00) >> 8;

    87     uint32_t actr = (rawActual & 0xFF0000) >> 16;

    88     uint32_t acta = (rawActual & 0xFF000000) >> 24;

    89     uint32_t expb = expected & 0xFF;

    90     uint32_t expg = (expected & 0xFF00) >> 8;

    91     uint32_t expr = (expected & 0xFF0000) >> 16;

    92     uint32_t expa = (expected & 0xFF000000) >> 24;

    94     message << "Verify Pixel (" << aPoint.x << "x" << aPoint.y << ") Failed."

    95       " Expected (" << expr << "," << expg << "," << expb << "," << expa << ") "

    96       " Got (" << actr << "," << actg << "," << actb << "," << acta << ")\n";

    98     LogMessage(message.str());

    99     mTestFailed = true;

   100     return;

   101   }

   102 }

   104 uint32_t

   105 TestDrawTargetBase::RGBAPixelFromColor(const Color &aColor)

   106 {

   107   return uint8_t((aColor.b * 255) + 0.5f) | uint8_t((aColor.g * 255) + 0.5f) << 8 |

   108          uint8_t((aColor.r * 255) + 0.5f) << 16 | uint8_t((aColor.a * 255) + 0.5f) << 24;

   109 }

The Tor Browser / file revision

gfx/2d/unittest/TestDrawTargetBase.cpp@97036ab72558

gfx/2d/unittest/TestDrawTargetBase.cpp