Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 181 insertions, 0 deletions

diff --git a/gfx/layers/AndroidHardwareBuffer.h b/gfx/layers/AndroidHardwareBuffer.h
new file mode 100644
index 0000000000..6b8a66b26f
--- /dev/null
+++ b/gfx/layers/AndroidHardwareBuffer.h
@@ -0,0 +1,181 @@
+/* -*- 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/. */
+
+#ifndef MOZILLA_LAYERS_ANDROID_HARDWARE_BUFFER
+#define MOZILLA_LAYERS_ANDROID_HARDWARE_BUFFER
+
+#include <android/hardware_buffer.h>
+#include <atomic>
+#include <unordered_map>
+
+#include "mozilla/layers/TextureClient.h"
+#include "mozilla/gfx/Types.h"
+#include "mozilla/gfx/2D.h"
+#include "mozilla/Monitor.h"
+#include "mozilla/RefPtr.h"
+#include "mozilla/StaticPtr.h"
+#include "mozilla/ThreadSafeWeakPtr.h"
+
+namespace mozilla {
+namespace layers {
+
+/**
+ * AndroidHardwareBufferApi provides apis for managing AHardwareBuffer.
+ * The apis are supported since Android O(APIVersion 26).
+ */
+class AndroidHardwareBufferApi final {
+ public:
+  static void Init();
+  static void Shutdown();
+
+  static AndroidHardwareBufferApi* Get() { return sInstance; }
+
+  void Allocate(const AHardwareBuffer_Desc* aDesc,
+                AHardwareBuffer** aOutBuffer);
+  void Acquire(AHardwareBuffer* aBuffer);
+  void Release(AHardwareBuffer* aBuffer);
+  void Describe(const AHardwareBuffer* aBuffer, AHardwareBuffer_Desc* aOutDesc);
+  int Lock(AHardwareBuffer* aBuffer, uint64_t aUsage, int32_t aFence,
+           const ARect* aRect, void** aOutVirtualAddress);
+  int Unlock(AHardwareBuffer* aBuffer, int32_t* aFence);
+  int SendHandleToUnixSocket(const AHardwareBuffer* aBuffer, int aSocketFd);
+  int RecvHandleFromUnixSocket(int aSocketFd, AHardwareBuffer** aOutBuffer);
+
+ private:
+  AndroidHardwareBufferApi();
+  bool Load();
+
+  using _AHardwareBuffer_allocate = int (*)(const AHardwareBuffer_Desc* desc,
+                                            AHardwareBuffer** outBuffer);
+  using _AHardwareBuffer_acquire = void (*)(AHardwareBuffer* buffer);
+  using _AHardwareBuffer_release = void (*)(AHardwareBuffer* buffer);
+  using _AHardwareBuffer_describe = void (*)(const AHardwareBuffer* buffer,
+                                             AHardwareBuffer_Desc* outDesc);
+  using _AHardwareBuffer_lock = int (*)(AHardwareBuffer* buffer, uint64_t usage,
+                                        int32_t fence, const ARect* rect,
+                                        void** outVirtualAddress);
+  using _AHardwareBuffer_unlock = int (*)(AHardwareBuffer* buffer,
+                                          int32_t* fence);
+  using _AHardwareBuffer_sendHandleToUnixSocket =
+      int (*)(const AHardwareBuffer* buffer, int socketFd);
+  using _AHardwareBuffer_recvHandleFromUnixSocket =
+      int (*)(int socketFd, AHardwareBuffer** outBuffer);
+
+  _AHardwareBuffer_allocate mAHardwareBuffer_allocate = nullptr;
+  _AHardwareBuffer_acquire mAHardwareBuffer_acquire = nullptr;
+  _AHardwareBuffer_release mAHardwareBuffer_release = nullptr;
+  _AHardwareBuffer_describe mAHardwareBuffer_describe = nullptr;
+  _AHardwareBuffer_lock mAHardwareBuffer_lock = nullptr;
+  _AHardwareBuffer_unlock mAHardwareBuffer_unlock = nullptr;
+  _AHardwareBuffer_sendHandleToUnixSocket
+      mAHardwareBuffer_sendHandleToUnixSocket = nullptr;
+  _AHardwareBuffer_recvHandleFromUnixSocket
+      mAHardwareBuffer_recvHandleFromUnixSocket = nullptr;
+
+  static StaticAutoPtr<AndroidHardwareBufferApi> sInstance;
+};
+
+/**
+ * AndroidHardwareBuffer is a wrapper of AHardwareBuffer. AHardwareBuffer wraps
+ * android GraphicBuffer. It is supported since Android O(APIVersion 26).
+ * The manager is mainly used for release fences delivery from
+ * host side to client side.
+ */
+class AndroidHardwareBuffer
+    : public SupportsThreadSafeWeakPtr<AndroidHardwareBuffer> {
+ public:
+  MOZ_DECLARE_REFCOUNTED_TYPENAME(AndroidHardwareBuffer)
+
+  static already_AddRefed<AndroidHardwareBuffer> Create(
+      gfx::IntSize aSize, gfx::SurfaceFormat aFormat);
+
+  virtual ~AndroidHardwareBuffer();
+
+  int Lock(uint64_t aUsage, const ARect* aRect, void** aOutVirtualAddress);
+  int Unlock();
+
+  AHardwareBuffer* GetNativeBuffer() const { return mNativeBuffer; }
+
+  void SetAcquireFence(ipc::FileDescriptor&& aFenceFd);
+
+  void SetReleaseFence(ipc::FileDescriptor&& aFenceFd);
+
+  ipc::FileDescriptor GetAndResetReleaseFence();
+
+  ipc::FileDescriptor GetAndResetAcquireFence();
+
+  ipc::FileDescriptor GetAcquireFence();
+
+  const gfx::IntSize mSize;
+  const uint32_t mStride;
+  const gfx::SurfaceFormat mFormat;
+  const uint64_t mId;
+
+ protected:
+  AndroidHardwareBuffer(AHardwareBuffer* aNativeBuffer, gfx::IntSize aSize,
+                        uint32_t aStride, gfx::SurfaceFormat aFormat,
+                        uint64_t aId);
+
+  void SetReleaseFence(ipc::FileDescriptor&& aFenceFd,
+                       const MonitorAutoLock& aAutoLock);
+
+  AHardwareBuffer* mNativeBuffer;
+
+  // When true, AndroidHardwareBuffer is registered to
+  // AndroidHardwareBufferManager.
+  bool mIsRegistered;
+
+  // protected by AndroidHardwareBufferManager::mMonitor
+
+  // FileDescriptor of release fence.
+  // Release fence is a fence that is used for waiting until usage/composite of
+  // AHardwareBuffer is ended. The fence is delivered via ImageBridge.
+  ipc::FileDescriptor mReleaseFenceFd;
+
+  // FileDescriptor of acquire fence.
+  // Acquire fence is a fence that is used for waiting until rendering to
+  // its AHardwareBuffer is completed.
+  ipc::FileDescriptor mAcquireFenceFd;
+
+  static uint64_t GetNextId();
+
+  friend class AndroidHardwareBufferManager;
+};
+
+/**
+ * AndroidHardwareBufferManager manages AndroidHardwareBuffers that is
+ * allocated by client side.
+ * Host side only uses mMonitor for thread safety of AndroidHardwareBuffer.
+ */
+class AndroidHardwareBufferManager {
+ public:
+  static void Init();
+  static void Shutdown();
+
+  AndroidHardwareBufferManager();
+
+  static AndroidHardwareBufferManager* Get() { return sInstance; }
+
+  void Register(RefPtr<AndroidHardwareBuffer> aBuffer);
+
+  void Unregister(AndroidHardwareBuffer* aBuffer);
+
+  already_AddRefed<AndroidHardwareBuffer> GetBuffer(uint64_t aBufferId);
+
+  Monitor& GetMonitor() { return mMonitor; }
+
+ private:
+  Monitor mMonitor MOZ_UNANNOTATED;
+  std::unordered_map<uint64_t, ThreadSafeWeakPtr<AndroidHardwareBuffer>>
+      mBuffers;
+
+  static StaticAutoPtr<AndroidHardwareBufferManager> sInstance;
+};
+
+}  // namespace layers
+}  // namespace mozilla
+
+#endif