gfx/2d/SourceSurfaceRawData.cpp
author Cosmin Malutan <cosmin.malutan@softvision.ro>
Mon, 28 Jul 2014 06:28:00 +0200
changeset 208285 1b581df81c9bd32339f3e5c3bb0e8bf11e160132
parent 199646 3d2c8fff30f2f3e5c1bda2f50d0a0251ede34d2e
child 216725 5982da7a1215ec04c7b27253152cf317c3dc42f7
child 219009 150cdebe837ff68628842b6350c96eea73c91e15
permissions -rw-r--r--
Bug 1032255 - TPS has to exit with code != 0 in case of failures. r=aeftimie, dhunt a=testonly DONTBUILD

/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#include "SourceSurfaceRawData.h"

#include "DataSurfaceHelpers.h"
#include "Logging.h"
#include "mozilla/Types.h" // for decltype

namespace mozilla {
namespace gfx {

bool
SourceSurfaceRawData::InitWrappingData(uint8_t *aData,
                                       const IntSize &aSize,
                                       int32_t aStride,
                                       SurfaceFormat aFormat,
                                       bool aOwnData)
{
  mRawData = aData;
  mSize = aSize;
  mStride = aStride;
  mFormat = aFormat;
  mOwnData = aOwnData;

  return true;
}

bool
SourceSurfaceAlignedRawData::Init(const IntSize &aSize,
                                  SurfaceFormat aFormat)
{
  mFormat = aFormat;
  mStride = GetAlignedStride<16>(aSize.width * BytesPerPixel(aFormat));

  size_t bufLen = BufferSizeFromStrideAndHeight(mStride, aSize.height);
  if (bufLen > 0) {
    static_assert(sizeof(decltype(mArray[0])) == 1,
                  "mArray.Realloc() takes an object count, so its objects must be 1-byte sized if we use bufLen");
    mArray.Realloc(/* actually an object count */ bufLen);
    mSize = aSize;
  } else {
    mArray.Dealloc();
    mSize.SizeTo(0, 0);
  }

  return mArray != nullptr;
}

bool
SourceSurfaceAlignedRawData::InitWithStride(const IntSize &aSize,
                                            SurfaceFormat aFormat,
                                            int32_t aStride)
{
  mFormat = aFormat;
  mStride = aStride;

  size_t bufLen = BufferSizeFromStrideAndHeight(mStride, aSize.height);
  if (bufLen > 0) {
    static_assert(sizeof(decltype(mArray[0])) == 1,
                  "mArray.Realloc() takes an object count, so its objects must be 1-byte sized if we use bufLen");
    mArray.Realloc(/* actually an object count */ bufLen);
    mSize = aSize;
  } else {
    mArray.Dealloc();
    mSize.SizeTo(0, 0);
  }

  return mArray != nullptr;
}

}
}