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/*
* Copyright 2016 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SkAutoPixmapStorage.h"
#include "SkData.h"
SkAutoPixmapStorage::SkAutoPixmapStorage() : fStorage(nullptr) {}
SkAutoPixmapStorage::~SkAutoPixmapStorage() {
this->freeStorage();
}
SkAutoPixmapStorage& SkAutoPixmapStorage::operator=(SkAutoPixmapStorage&& other) {
this->fStorage = other.fStorage;
this->INHERITED::reset(other.info(), this->fStorage, other.rowBytes());
other.fStorage = nullptr;
other.INHERITED::reset();
return *this;
}
size_t SkAutoPixmapStorage::AllocSize(const SkImageInfo& info, size_t* rowBytes) {
size_t rb = info.minRowBytes();
if (rowBytes) {
*rowBytes = rb;
}
return info.computeByteSize(rb);
}
bool SkAutoPixmapStorage::tryAlloc(const SkImageInfo& info) {
this->freeStorage();
size_t rb;
size_t size = AllocSize(info, &rb);
if (SkImageInfo::ByteSizeOverflowed(size)) {
return false;
}
void* pixels = sk_malloc_canfail(size);
if (nullptr == pixels) {
return false;
}
this->reset(info, pixels, rb);
fStorage = pixels;
return true;
}
void SkAutoPixmapStorage::alloc(const SkImageInfo& info) {
SkASSERT_RELEASE(this->tryAlloc(info));
}
const SkData* SkAutoPixmapStorage::detachPixelsAsData() {
if (!fStorage) {
return nullptr;
}
auto data = SkData::MakeFromMalloc(fStorage, this->computeByteSize());
fStorage = nullptr;
this->INHERITED::reset();
return data.release();
}
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