gecko-dev/dom/media/SimpleImageBuffer.cpp

54 строки
1.2 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* vim:set ts=4 sw=4 sts=4 ci et: */
/* 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 "SimpleImageBuffer.h"
#include "mozilla/NullPtr.h"
namespace mozilla {
void
SimpleImageBuffer::SetImage(const unsigned char* frame, unsigned int size, int width, int height)
{
mWidth = width;
mHeight = height;
if (!mBuffer || (size > mBufferSize)) {
if (mBuffer) {
delete[] mBuffer;
mBuffer = nullptr;
}
mBufferSize = size;
if (size > 0) {
mBuffer = new unsigned char[size];
}
}
if (mBuffer) {
if (frame && (size > 0)) {
memcpy((void *)mBuffer, (const void*)frame, size);
}
mSize = size;
}
}
void
SimpleImageBuffer::Copy(const SimpleImageBuffer* aImage)
{
if (aImage) {
SetImage(aImage->mBuffer, aImage->mSize, aImage->mWidth, aImage->mHeight);
}
}
const unsigned char*
SimpleImageBuffer::GetImage(unsigned int* size) const
{
if (size) {
*size = mSize;
}
return mBuffer;
}
} // namespace mozilla