1 files changed, 105 insertions, 0 deletions
diff --git a/widget/android/AndroidCompositorWidget.cpp b/widget/android/AndroidCompositorWidget.cpp
new file mode 100644
index 0000000000..a7eeb665e1
--- /dev/null
+++ b/widget/android/AndroidCompositorWidget.cpp
@@ -0,0 +1,105 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set sw=2 ts=2 et 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 "AndroidCompositorWidget.h"
+
+#include "mozilla/gfx/Logging.h"
+#include "mozilla/widget/PlatformWidgetTypes.h"
+#include "nsWindow.h"
+
+namespace mozilla {
+namespace widget {
+
+AndroidCompositorWidget::AndroidCompositorWidget(
+    const AndroidCompositorWidgetInitData& aInitData,
+    const layers::CompositorOptions& aOptions)
+    : CompositorWidget(aOptions),
+      mWidgetId(aInitData.widgetId()),
+      mNativeWindow(nullptr),
+      mFormat(WINDOW_FORMAT_RGBA_8888),
+      mClientSize(aInitData.clientSize()) {}
+
+AndroidCompositorWidget::~AndroidCompositorWidget() {
+  if (mNativeWindow) {
+    ANativeWindow_release(mNativeWindow);
+  }
+}
+
+already_AddRefed<gfx::DrawTarget>
+AndroidCompositorWidget::StartRemoteDrawingInRegion(
+    const LayoutDeviceIntRegion& aInvalidRegion,
+    layers::BufferMode* aBufferMode) {
+  if (!mNativeWindow) {
+    EGLNativeWindowType window = GetEGLNativeWindow();
+    JNIEnv* const env = jni::GetEnvForThread();
+    mNativeWindow =
+        ANativeWindow_fromSurface(env, reinterpret_cast<jobject>(window));
+    if (mNativeWindow) {
+      mFormat = ANativeWindow_getFormat(mNativeWindow);
+      ANativeWindow_acquire(mNativeWindow);
+    } else {
+      return nullptr;
+    }
+  }
+
+  if (mFormat != WINDOW_FORMAT_RGBA_8888 &&
+      mFormat != WINDOW_FORMAT_RGBX_8888) {
+    gfxCriticalNoteOnce << "Non supported format: " << mFormat;
+    return nullptr;
+  }
+
+  // XXX Handle inOutDirtyBounds
+  if (ANativeWindow_lock(mNativeWindow, &mBuffer, nullptr) != 0) {
+    return nullptr;
+  }
+
+  const int bpp = 4;
+  gfx::SurfaceFormat format = gfx::SurfaceFormat::R8G8B8A8;
+  if (mFormat == WINDOW_FORMAT_RGBX_8888) {
+    format = gfx::SurfaceFormat::R8G8B8X8;
+  }
+
+  RefPtr<gfx::DrawTarget> dt = gfx::Factory::CreateDrawTargetForData(
+      gfx::BackendType::SKIA, static_cast<unsigned char*>(mBuffer.bits),
+      gfx::IntSize(mBuffer.width, mBuffer.height), mBuffer.stride * bpp, format,
+      true);
+
+  return dt.forget();
+}
+
+void AndroidCompositorWidget::EndRemoteDrawingInRegion(
+    gfx::DrawTarget* aDrawTarget, const LayoutDeviceIntRegion& aInvalidRegion) {
+  ANativeWindow_unlockAndPost(mNativeWindow);
+}
+
+bool AndroidCompositorWidget::OnResumeComposition() {
+  OnCompositorSurfaceChanged();
+
+  if (!mSurface) {
+    gfxCriticalError() << "OnResumeComposition called with null Surface";
+    return false;
+  }
+
+  return true;
+}
+
+EGLNativeWindowType AndroidCompositorWidget::GetEGLNativeWindow() {
+  return (EGLNativeWindowType)mSurface.Get();
+}
+
+LayoutDeviceIntSize AndroidCompositorWidget::GetClientSize() {
+  return mClientSize;
+}
+
+void AndroidCompositorWidget::NotifyClientSizeChanged(
+    const LayoutDeviceIntSize& aClientSize) {
+  mClientSize =
+      LayoutDeviceIntSize(std::min(aClientSize.width, MOZ_WIDGET_MAX_SIZE),
+                          std::min(aClientSize.height, MOZ_WIDGET_MAX_SIZE));
+}
+
+}  // namespace widget
+}  // namespace mozilla