1 files changed, 119 insertions, 0 deletions
diff --git a/gfx/webrender_bindings/RenderBufferTextureHostSWGL.cpp b/gfx/webrender_bindings/RenderBufferTextureHostSWGL.cpp
new file mode 100644
index 0000000000..9c17cbae82
--- /dev/null
+++ b/gfx/webrender_bindings/RenderBufferTextureHostSWGL.cpp
@@ -0,0 +1,119 @@
+/* -*- 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 "RenderBufferTextureHostSWGL.h"
+
+#include "mozilla/gfx/Logging.h"
+#include "mozilla/layers/ImageDataSerializer.h"
+
+namespace mozilla {
+namespace wr {
+
+RenderBufferTextureHostSWGL::RenderBufferTextureHostSWGL(
+    uint8_t* aBuffer, const layers::BufferDescriptor& aDescriptor)
+    : mBuffer(aBuffer), mDescriptor(aDescriptor) {
+  MOZ_COUNT_CTOR_INHERITED(RenderBufferTextureHostSWGL, RenderTextureHostSWGL);
+
+  switch (mDescriptor.type()) {
+    case layers::BufferDescriptor::TYCbCrDescriptor:
+    case layers::BufferDescriptor::TRGBDescriptor:
+      break;
+    default:
+      gfxCriticalError() << "Bad buffer host descriptor "
+                         << (int)mDescriptor.type();
+      MOZ_CRASH("GFX: Bad descriptor");
+  }
+}
+
+RenderBufferTextureHostSWGL::~RenderBufferTextureHostSWGL() {
+  MOZ_COUNT_DTOR_INHERITED(RenderBufferTextureHostSWGL, RenderTextureHostSWGL);
+}
+
+size_t RenderBufferTextureHostSWGL::GetPlaneCount() const {
+  switch (mDescriptor.type()) {
+    case layers::BufferDescriptor::TYCbCrDescriptor:
+      return 3;
+    default:
+      return 1;
+  }
+}
+
+gfx::SurfaceFormat RenderBufferTextureHostSWGL::GetFormat() const {
+  switch (mDescriptor.type()) {
+    case layers::BufferDescriptor::TYCbCrDescriptor:
+      return gfx::SurfaceFormat::YUV;
+    default:
+      return mDescriptor.get_RGBDescriptor().format();
+  }
+}
+
+gfx::ColorDepth RenderBufferTextureHostSWGL::GetColorDepth() const {
+  switch (mDescriptor.type()) {
+    case layers::BufferDescriptor::TYCbCrDescriptor:
+      return mDescriptor.get_YCbCrDescriptor().colorDepth();
+    default:
+      return gfx::ColorDepth::COLOR_8;
+  }
+}
+
+gfx::YUVColorSpace RenderBufferTextureHostSWGL::GetYUVColorSpace() const {
+  switch (mDescriptor.type()) {
+    case layers::BufferDescriptor::TYCbCrDescriptor:
+      return mDescriptor.get_YCbCrDescriptor().yUVColorSpace();
+    default:
+      return gfx::YUVColorSpace::UNKNOWN;
+  }
+}
+
+bool RenderBufferTextureHostSWGL::MapPlane(RenderCompositor* aCompositor,
+                                           uint8_t aChannelIndex,
+                                           PlaneInfo& aPlaneInfo) {
+  if (!mBuffer) {
+    // We hit some problems to get the shmem.
+    gfxCriticalNote << "GetBuffer Failed";
+    return false;
+  }
+
+  switch (mDescriptor.type()) {
+    case layers::BufferDescriptor::TYCbCrDescriptor: {
+      const layers::YCbCrDescriptor& desc = mDescriptor.get_YCbCrDescriptor();
+      switch (aChannelIndex) {
+        case 0:
+          aPlaneInfo.mData =
+              layers::ImageDataSerializer::GetYChannel(mBuffer, desc);
+          aPlaneInfo.mStride = desc.yStride();
+          aPlaneInfo.mSize = desc.ySize();
+          break;
+        case 1:
+          aPlaneInfo.mData =
+              layers::ImageDataSerializer::GetCbChannel(mBuffer, desc);
+          aPlaneInfo.mStride = desc.cbCrStride();
+          aPlaneInfo.mSize = desc.cbCrSize();
+          break;
+        case 2:
+          aPlaneInfo.mData =
+              layers::ImageDataSerializer::GetCrChannel(mBuffer, desc);
+          aPlaneInfo.mStride = desc.cbCrStride();
+          aPlaneInfo.mSize = desc.cbCrSize();
+          break;
+      }
+      break;
+    }
+    default: {
+      const layers::RGBDescriptor& desc = mDescriptor.get_RGBDescriptor();
+      aPlaneInfo.mData = mBuffer;
+      aPlaneInfo.mStride = layers::ImageDataSerializer::GetRGBStride(desc);
+      aPlaneInfo.mSize = desc.size();
+      break;
+    }
+  }
+  return true;
+}
+
+void RenderBufferTextureHostSWGL::UnmapPlanes() {}
+
+}  // namespace wr
+}  // namespace mozilla