1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/gfx/thebes/gfxReusableImageSurfaceWrapper.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,61 @@
1.4 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.5 + * License, v. 2.0. If a copy of the MPL was not distributed with this file,
1.6 + * You can obtain one at http://mozilla.org/MPL/2.0/. */
1.7 +
1.8 +#include "gfxReusableImageSurfaceWrapper.h"
1.9 +#include "gfxImageSurface.h"
1.10 +
1.11 +gfxReusableImageSurfaceWrapper::gfxReusableImageSurfaceWrapper(gfxImageSurface* aSurface)
1.12 + : mSurface(aSurface)
1.13 +{
1.14 + MOZ_COUNT_CTOR(gfxReusableImageSurfaceWrapper);
1.15 +}
1.16 +
1.17 +gfxReusableImageSurfaceWrapper::~gfxReusableImageSurfaceWrapper()
1.18 +{
1.19 + MOZ_COUNT_DTOR(gfxReusableImageSurfaceWrapper);
1.20 +}
1.21 +
1.22 +void
1.23 +gfxReusableImageSurfaceWrapper::ReadLock()
1.24 +{
1.25 + NS_ASSERT_OWNINGTHREAD(gfxReusableImageSurfaceWrapper);
1.26 + AddRef();
1.27 +}
1.28 +
1.29 +void
1.30 +gfxReusableImageSurfaceWrapper::ReadUnlock()
1.31 +{
1.32 + Release();
1.33 +}
1.34 +
1.35 +gfxReusableSurfaceWrapper*
1.36 +gfxReusableImageSurfaceWrapper::GetWritable(gfxImageSurface** aSurface)
1.37 +{
1.38 + NS_ASSERT_OWNINGTHREAD(gfxReusableImageSurfaceWrapper);
1.39 +
1.40 + if (mRefCnt == 1) {
1.41 + *aSurface = mSurface;
1.42 + return this;
1.43 + }
1.44 +
1.45 + // Something else is reading the surface, copy it
1.46 + gfxImageSurface* copySurface = new gfxImageSurface(mSurface->GetSize(), mSurface->Format(), false);
1.47 + copySurface->CopyFrom(mSurface);
1.48 + *aSurface = copySurface;
1.49 +
1.50 + return new gfxReusableImageSurfaceWrapper(copySurface);
1.51 +}
1.52 +
1.53 +const unsigned char*
1.54 +gfxReusableImageSurfaceWrapper::GetReadOnlyData() const
1.55 +{
1.56 + return mSurface->Data();
1.57 +}
1.58 +
1.59 +gfxImageFormat
1.60 +gfxReusableImageSurfaceWrapper::Format()
1.61 +{
1.62 + return mSurface->Format();
1.63 +}
1.64 +
