gecko-dev/gfx/gl/SurfaceFactory.cpp

60 строки
1.2 KiB
C++

/* -*- Mode: c++; c-basic-offset: 4; indent-tabs-mode: nil; tab-width: 40; -*- */
/* 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 "SurfaceFactory.h"
#include "SharedSurface.h"
namespace mozilla {
namespace gfx {
SurfaceFactory::~SurfaceFactory()
{
while (!mScraps.empty()) {
SharedSurface* cur = mScraps.front();
mScraps.pop();
delete cur;
}
}
SharedSurface*
SurfaceFactory::NewSharedSurface(const gfxIntSize& size)
{
// Attempt to reuse an old surface.
while (!mScraps.empty()) {
SharedSurface* cur = mScraps.front();
mScraps.pop();
if (cur->Size() == size)
return cur;
// Destroy old surfaces of the wrong size.
delete cur;
}
SharedSurface* ret = CreateShared(size);
return ret;
}
// Auto-deletes surfs of the wrong type.
void
SurfaceFactory::Recycle(SharedSurface*& surf)
{
if (!surf)
return;
if (surf->Type() == mType) {
mScraps.push(surf);
} else {
delete surf;
}
surf = nullptr;
}
} /* namespace gfx */
} /* namespace mozilla */