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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 "RenderSharedSurfaceTextureHost.h"
#include "mozilla/gfx/Logging.h"
#include "mozilla/layers/ImageDataSerializer.h"
#include "mozilla/layers/SourceSurfaceSharedData.h"
namespace mozilla {
namespace wr {
RenderSharedSurfaceTextureHost::RenderSharedSurfaceTextureHost(
gfx::SourceSurfaceSharedDataWrapper* aSurface)
: mSurface(aSurface), mMap(), mLocked(false) {
MOZ_COUNT_CTOR_INHERITED(RenderSharedSurfaceTextureHost, RenderTextureHost);
MOZ_ASSERT(aSurface);
}
RenderSharedSurfaceTextureHost::~RenderSharedSurfaceTextureHost() {
MOZ_COUNT_DTOR_INHERITED(RenderSharedSurfaceTextureHost, RenderTextureHost);
}
wr::WrExternalImage RenderSharedSurfaceTextureHost::Lock(
uint8_t aChannelIndex, gl::GLContext* aGL, wr::ImageRendering aRendering) {
if (!mLocked) {
if (NS_WARN_IF(!mSurface->Map(gfx::DataSourceSurface::MapType::READ_WRITE,
&mMap))) {
return InvalidToWrExternalImage();
}
mLocked = true;
}
return RawDataToWrExternalImage(mMap.mData,
mMap.mStride * mSurface->GetSize().height);
}
void RenderSharedSurfaceTextureHost::Unlock() {
if (mLocked) {
mSurface->Unmap();
mLocked = false;
}
}
size_t RenderSharedSurfaceTextureHost::Bytes() {
return mSurface->Stride() * mSurface->GetSize().height;
}
} // namespace wr
} // namespace mozilla
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