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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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 {
void SourceSurfaceRawData::InitWrappingData(
uint8_t* aData, const IntSize& aSize, int32_t aStride,
SurfaceFormat aFormat, Factory::SourceSurfaceDeallocator aDeallocator,
void* aClosure) {
mRawData = aData;
mSize = aSize;
mStride = aStride;
mFormat = aFormat;
if (aDeallocator) {
mOwnData = true;
}
mDeallocator = aDeallocator;
mClosure = aClosure;
}
void SourceSurfaceRawData::GuaranteePersistance() {
if (mOwnData) {
return;
}
MOZ_ASSERT(!mDeallocator);
uint8_t* oldData = mRawData;
mRawData = new uint8_t[mStride * mSize.height];
memcpy(mRawData, oldData, mStride * mSize.height);
mOwnData = true;
}
void SourceSurfaceRawData::SizeOfExcludingThis(MallocSizeOf aMallocSizeOf,
SizeOfInfo& aInfo) const {
aInfo.AddType(SurfaceType::DATA);
if (mDeallocator) {
aInfo.mUnknownBytes = mStride * mSize.height;
} else if (mOwnData) {
aInfo.mHeapBytes = mStride * mSize.height;
}
}
bool SourceSurfaceAlignedRawData::Init(const IntSize& aSize,
SurfaceFormat aFormat, bool aClearMem,
uint8_t aClearValue, int32_t aStride) {
mFormat = aFormat;
mStride = aStride ? aStride
: GetAlignedStride<16>(aSize.width, BytesPerPixel(aFormat));
size_t bufLen = BufferSizeFromStrideAndHeight(mStride, aSize.height);
if (bufLen > 0) {
bool zeroMem = aClearMem && !aClearValue;
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");
// AlignedArray uses cmalloc to zero mem for a fast path.
mArray.Realloc(/* actually an object count */ bufLen, zeroMem);
mSize = aSize;
if (mArray && aClearMem && aClearValue) {
memset(mArray, aClearValue, mStride * aSize.height);
}
} else {
mArray.Dealloc();
mSize.SizeTo(0, 0);
}
return mArray != nullptr;
}
void SourceSurfaceAlignedRawData::SizeOfExcludingThis(
MallocSizeOf aMallocSizeOf, SizeOfInfo& aInfo) const {
aInfo.AddType(SurfaceType::DATA_ALIGNED);
aInfo.mHeapBytes = mArray.HeapSizeOfExcludingThis(aMallocSizeOf);
}
} // namespace gfx
} // namespace mozilla