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-rw-r--r--gfx/webrender_bindings/RenderSharedSurfaceTextureHost.cpp78
1 files changed, 78 insertions, 0 deletions
diff --git a/gfx/webrender_bindings/RenderSharedSurfaceTextureHost.cpp b/gfx/webrender_bindings/RenderSharedSurfaceTextureHost.cpp
new file mode 100644
index 0000000000..db085f8f2f
--- /dev/null
+++ b/gfx/webrender_bindings/RenderSharedSurfaceTextureHost.cpp
@@ -0,0 +1,78 @@
+/* -*- 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) {
+ if (!mLocked) {
+ if (NS_WARN_IF(
+ !mSurface->Map(gfx::DataSourceSurface::MapType::READ, &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;
+}
+
+size_t RenderSharedSurfaceTextureHost::GetPlaneCount() const { return 1; }
+
+gfx::SurfaceFormat RenderSharedSurfaceTextureHost::GetFormat() const {
+ return mSurface->GetFormat();
+}
+
+gfx::ColorDepth RenderSharedSurfaceTextureHost::GetColorDepth() const {
+ return gfx::ColorDepth::COLOR_8;
+}
+
+bool RenderSharedSurfaceTextureHost::MapPlane(RenderCompositor* aCompositor,
+ uint8_t aChannelIndex,
+ PlaneInfo& aPlaneInfo) {
+ if (NS_WARN_IF(
+ !mSurface->Map(gfx::DataSourceSurface::MapType::READ, &mMap))) {
+ return false;
+ }
+ aPlaneInfo.mData = mMap.mData;
+ aPlaneInfo.mStride = mMap.mStride;
+ aPlaneInfo.mSize = mSurface->GetSize();
+ return true;
+}
+
+void RenderSharedSurfaceTextureHost::UnmapPlanes() { mSurface->Unmap(); }
+
+} // namespace wr
+} // namespace mozilla