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, 346 insertions, 0 deletions

diff --git a/gfx/layers/AndroidHardwareBuffer.cpp b/gfx/layers/AndroidHardwareBuffer.cpp
new file mode 100644
index 0000000000..6c474194aa
--- /dev/null
+++ b/gfx/layers/AndroidHardwareBuffer.cpp
@@ -0,0 +1,346 @@
+/* -*- 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 "AndroidHardwareBuffer.h"
+
+#include <dlfcn.h>
+
+#include "mozilla/gfx/2D.h"
+#include "mozilla/gfx/gfxVars.h"
+#include "mozilla/layers/ImageBridgeChild.h"
+#include "mozilla/layers/TextureClientSharedSurface.h"
+#include "mozilla/TimeStamp.h"
+#include "mozilla/UniquePtrExtensions.h"
+
+namespace mozilla {
+namespace layers {
+
+static uint32_t ToAHardwareBuffer_Format(gfx::SurfaceFormat aFormat) {
+  switch (aFormat) {
+    case gfx::SurfaceFormat::R8G8B8A8:
+    case gfx::SurfaceFormat::B8G8R8A8:
+      return AHARDWAREBUFFER_FORMAT_R8G8B8A8_UNORM;
+
+    case gfx::SurfaceFormat::R8G8B8X8:
+    case gfx::SurfaceFormat::B8G8R8X8:
+      return AHARDWAREBUFFER_FORMAT_R8G8B8X8_UNORM;
+
+    case gfx::SurfaceFormat::R5G6B5_UINT16:
+      return AHARDWAREBUFFER_FORMAT_R5G6B5_UNORM;
+
+    default:
+      MOZ_ASSERT_UNREACHABLE("Unsupported SurfaceFormat");
+      return AHARDWAREBUFFER_FORMAT_R8G8B8A8_UNORM;
+  }
+}
+
+StaticAutoPtr<AndroidHardwareBufferApi> AndroidHardwareBufferApi::sInstance;
+
+/* static */
+void AndroidHardwareBufferApi::Init() {
+  MOZ_ASSERT(XRE_IsGPUProcess());
+
+  sInstance = new AndroidHardwareBufferApi();
+  if (!sInstance->Load()) {
+    sInstance = nullptr;
+  }
+}
+
+/* static */
+void AndroidHardwareBufferApi::Shutdown() { sInstance = nullptr; }
+
+AndroidHardwareBufferApi::AndroidHardwareBufferApi() {}
+
+bool AndroidHardwareBufferApi::Load() {
+  void* handle = dlopen("libandroid.so", RTLD_LAZY | RTLD_LOCAL);
+  MOZ_ASSERT(handle);
+  if (!handle) {
+    gfxCriticalNote << "Failed to load libandroid.so";
+    return false;
+  }
+
+  mAHardwareBuffer_allocate =
+      (_AHardwareBuffer_allocate)dlsym(handle, "AHardwareBuffer_allocate");
+  mAHardwareBuffer_acquire =
+      (_AHardwareBuffer_acquire)dlsym(handle, "AHardwareBuffer_acquire");
+  mAHardwareBuffer_release =
+      (_AHardwareBuffer_release)dlsym(handle, "AHardwareBuffer_release");
+  mAHardwareBuffer_describe =
+      (_AHardwareBuffer_describe)dlsym(handle, "AHardwareBuffer_describe");
+  mAHardwareBuffer_lock =
+      (_AHardwareBuffer_lock)dlsym(handle, "AHardwareBuffer_lock");
+  mAHardwareBuffer_unlock =
+      (_AHardwareBuffer_unlock)dlsym(handle, "AHardwareBuffer_unlock");
+  mAHardwareBuffer_sendHandleToUnixSocket =
+      (_AHardwareBuffer_sendHandleToUnixSocket)dlsym(
+          handle, "AHardwareBuffer_sendHandleToUnixSocket");
+  mAHardwareBuffer_recvHandleFromUnixSocket =
+      (_AHardwareBuffer_recvHandleFromUnixSocket)dlsym(
+          handle, "AHardwareBuffer_recvHandleFromUnixSocket");
+
+  if (!mAHardwareBuffer_allocate || !mAHardwareBuffer_acquire ||
+      !mAHardwareBuffer_release || !mAHardwareBuffer_describe ||
+      !mAHardwareBuffer_lock || !mAHardwareBuffer_unlock ||
+      !mAHardwareBuffer_sendHandleToUnixSocket ||
+      !mAHardwareBuffer_recvHandleFromUnixSocket) {
+    gfxCriticalNote << "Failed to load AHardwareBuffer";
+    return false;
+  }
+  return true;
+}
+
+void AndroidHardwareBufferApi::Allocate(const AHardwareBuffer_Desc* aDesc,
+                                        AHardwareBuffer** aOutBuffer) {
+  mAHardwareBuffer_allocate(aDesc, aOutBuffer);
+}
+
+void AndroidHardwareBufferApi::Acquire(AHardwareBuffer* aBuffer) {
+  mAHardwareBuffer_acquire(aBuffer);
+}
+
+void AndroidHardwareBufferApi::Release(AHardwareBuffer* aBuffer) {
+  mAHardwareBuffer_release(aBuffer);
+}
+
+void AndroidHardwareBufferApi::Describe(const AHardwareBuffer* aBuffer,
+                                        AHardwareBuffer_Desc* aOutDesc) {
+  mAHardwareBuffer_describe(aBuffer, aOutDesc);
+}
+
+int AndroidHardwareBufferApi::Lock(AHardwareBuffer* aBuffer, uint64_t aUsage,
+                                   int32_t aFence, const ARect* aRect,
+                                   void** aOutVirtualAddress) {
+  return mAHardwareBuffer_lock(aBuffer, aUsage, aFence, aRect,
+                               aOutVirtualAddress);
+}
+
+int AndroidHardwareBufferApi::Unlock(AHardwareBuffer* aBuffer,
+                                     int32_t* aFence) {
+  return mAHardwareBuffer_unlock(aBuffer, aFence);
+}
+
+int AndroidHardwareBufferApi::SendHandleToUnixSocket(
+    const AHardwareBuffer* aBuffer, int aSocketFd) {
+  return mAHardwareBuffer_sendHandleToUnixSocket(aBuffer, aSocketFd);
+}
+
+int AndroidHardwareBufferApi::RecvHandleFromUnixSocket(
+    int aSocketFd, AHardwareBuffer** aOutBuffer) {
+  return mAHardwareBuffer_recvHandleFromUnixSocket(aSocketFd, aOutBuffer);
+}
+
+/* static */
+uint64_t AndroidHardwareBuffer::GetNextId() {
+  static std::atomic<uint64_t> sNextId = 0;
+  uint64_t id = ++sNextId;
+  return id;
+}
+
+/* static */
+already_AddRefed<AndroidHardwareBuffer> AndroidHardwareBuffer::Create(
+    gfx::IntSize aSize, gfx::SurfaceFormat aFormat) {
+  if (!AndroidHardwareBufferApi::Get()) {
+    return nullptr;
+  }
+
+  if (aFormat != gfx::SurfaceFormat::R8G8B8A8 &&
+      aFormat != gfx::SurfaceFormat::R8G8B8X8 &&
+      aFormat != gfx::SurfaceFormat::B8G8R8A8 &&
+      aFormat != gfx::SurfaceFormat::B8G8R8X8 &&
+      aFormat != gfx::SurfaceFormat::R5G6B5_UINT16) {
+    return nullptr;
+  }
+
+  AHardwareBuffer_Desc desc = {};
+  desc.width = aSize.width;
+  desc.height = aSize.height;
+  desc.layers = 1;  // number of images
+  desc.usage = AHARDWAREBUFFER_USAGE_CPU_READ_OFTEN |
+               AHARDWAREBUFFER_USAGE_CPU_WRITE_OFTEN |
+               AHARDWAREBUFFER_USAGE_GPU_SAMPLED_IMAGE |
+               AHARDWAREBUFFER_USAGE_GPU_COLOR_OUTPUT;
+  desc.format = ToAHardwareBuffer_Format(aFormat);
+
+  AHardwareBuffer* nativeBuffer = nullptr;
+  AndroidHardwareBufferApi::Get()->Allocate(&desc, &nativeBuffer);
+  if (!nativeBuffer) {
+    return nullptr;
+  }
+
+  AHardwareBuffer_Desc bufferInfo = {};
+  AndroidHardwareBufferApi::Get()->Describe(nativeBuffer, &bufferInfo);
+
+  RefPtr<AndroidHardwareBuffer> buffer = new AndroidHardwareBuffer(
+      nativeBuffer, aSize, bufferInfo.stride, aFormat, GetNextId());
+  AndroidHardwareBufferManager::Get()->Register(buffer);
+  return buffer.forget();
+}
+
+AndroidHardwareBuffer::AndroidHardwareBuffer(AHardwareBuffer* aNativeBuffer,
+                                             gfx::IntSize aSize,
+                                             uint32_t aStride,
+                                             gfx::SurfaceFormat aFormat,
+                                             uint64_t aId)
+    : mSize(aSize),
+      mStride(aStride),
+      mFormat(aFormat),
+      mId(aId),
+      mNativeBuffer(aNativeBuffer),
+      mIsRegistered(false) {
+  MOZ_ASSERT(mNativeBuffer);
+#ifdef DEBUG
+  AHardwareBuffer_Desc bufferInfo = {};
+  AndroidHardwareBufferApi::Get()->Describe(mNativeBuffer, &bufferInfo);
+  MOZ_ASSERT(mSize.width == (int32_t)bufferInfo.width);
+  MOZ_ASSERT(mSize.height == (int32_t)bufferInfo.height);
+  MOZ_ASSERT(mStride == bufferInfo.stride);
+  MOZ_ASSERT(ToAHardwareBuffer_Format(mFormat) == bufferInfo.format);
+#endif
+}
+
+AndroidHardwareBuffer::~AndroidHardwareBuffer() {
+  if (mIsRegistered) {
+    AndroidHardwareBufferManager::Get()->Unregister(this);
+  }
+  AndroidHardwareBufferApi::Get()->Release(mNativeBuffer);
+}
+
+int AndroidHardwareBuffer::Lock(uint64_t aUsage, const ARect* aRect,
+                                void** aOutVirtualAddress) {
+  ipc::FileDescriptor fd = GetAndResetReleaseFence();
+  int32_t fenceFd = -1;
+  ipc::FileDescriptor::UniquePlatformHandle rawFd;
+  if (fd.IsValid()) {
+    rawFd = fd.TakePlatformHandle();
+    fenceFd = rawFd.get();
+  }
+  return AndroidHardwareBufferApi::Get()->Lock(mNativeBuffer, aUsage, fenceFd,
+                                               aRect, aOutVirtualAddress);
+}
+
+int AndroidHardwareBuffer::Unlock() {
+  int rawFd = -1;
+  // XXX All tested recent Android devices did not return valid fence.
+  int ret = AndroidHardwareBufferApi::Get()->Unlock(mNativeBuffer, &rawFd);
+  if (ret != 0) {
+    return ret;
+  }
+
+  ipc::FileDescriptor acquireFenceFd;
+  // The value -1 indicates that unlocking has already completed before
+  // the function returned and no further operations are necessary.
+  if (rawFd >= 0) {
+    acquireFenceFd = ipc::FileDescriptor(UniqueFileHandle(rawFd));
+  }
+
+  if (acquireFenceFd.IsValid()) {
+    SetAcquireFence(std::move(acquireFenceFd));
+  }
+  return 0;
+}
+
+void AndroidHardwareBuffer::SetReleaseFence(ipc::FileDescriptor&& aFenceFd) {
+  MonitorAutoLock lock(AndroidHardwareBufferManager::Get()->GetMonitor());
+  SetReleaseFence(std::move(aFenceFd), lock);
+}
+
+void AndroidHardwareBuffer::SetReleaseFence(ipc::FileDescriptor&& aFenceFd,
+                                            const MonitorAutoLock& aAutoLock) {
+  mReleaseFenceFd = std::move(aFenceFd);
+}
+
+void AndroidHardwareBuffer::SetAcquireFence(ipc::FileDescriptor&& aFenceFd) {
+  MonitorAutoLock lock(AndroidHardwareBufferManager::Get()->GetMonitor());
+
+  mAcquireFenceFd = std::move(aFenceFd);
+}
+
+ipc::FileDescriptor AndroidHardwareBuffer::GetAndResetReleaseFence() {
+  MonitorAutoLock lock(AndroidHardwareBufferManager::Get()->GetMonitor());
+
+  if (!mReleaseFenceFd.IsValid()) {
+    return ipc::FileDescriptor();
+  }
+
+  return std::move(mReleaseFenceFd);
+}
+
+ipc::FileDescriptor AndroidHardwareBuffer::GetAndResetAcquireFence() {
+  MonitorAutoLock lock(AndroidHardwareBufferManager::Get()->GetMonitor());
+
+  if (!mAcquireFenceFd.IsValid()) {
+    return ipc::FileDescriptor();
+  }
+
+  return std::move(mAcquireFenceFd);
+}
+
+ipc::FileDescriptor AndroidHardwareBuffer::GetAcquireFence() {
+  MonitorAutoLock lock(AndroidHardwareBufferManager::Get()->GetMonitor());
+
+  if (!mAcquireFenceFd.IsValid()) {
+    return ipc::FileDescriptor();
+  }
+
+  return mAcquireFenceFd;
+}
+
+StaticAutoPtr<AndroidHardwareBufferManager>
+    AndroidHardwareBufferManager::sInstance;
+
+/* static */
+void AndroidHardwareBufferManager::Init() {
+  MOZ_ASSERT(XRE_IsGPUProcess());
+
+  sInstance = new AndroidHardwareBufferManager();
+}
+
+/* static */
+void AndroidHardwareBufferManager::Shutdown() { sInstance = nullptr; }
+
+AndroidHardwareBufferManager::AndroidHardwareBufferManager()
+    : mMonitor("AndroidHardwareBufferManager.mMonitor") {}
+
+void AndroidHardwareBufferManager::Register(
+    RefPtr<AndroidHardwareBuffer> aBuffer) {
+  MonitorAutoLock lock(mMonitor);
+
+  aBuffer->mIsRegistered = true;
+  ThreadSafeWeakPtr<AndroidHardwareBuffer> weak(aBuffer);
+
+#ifdef DEBUG
+  const auto it = mBuffers.find(aBuffer->mId);
+  MOZ_ASSERT(it == mBuffers.end());
+#endif
+  mBuffers.emplace(aBuffer->mId, weak);
+}
+
+void AndroidHardwareBufferManager::Unregister(AndroidHardwareBuffer* aBuffer) {
+  MonitorAutoLock lock(mMonitor);
+
+  const auto it = mBuffers.find(aBuffer->mId);
+  MOZ_ASSERT(it != mBuffers.end());
+  if (it == mBuffers.end()) {
+    gfxCriticalNote << "AndroidHardwareBuffer id mismatch happened";
+    return;
+  }
+  mBuffers.erase(it);
+}
+
+already_AddRefed<AndroidHardwareBuffer> AndroidHardwareBufferManager::GetBuffer(
+    uint64_t aBufferId) {
+  MonitorAutoLock lock(mMonitor);
+
+  const auto it = mBuffers.find(aBufferId);
+  if (it == mBuffers.end()) {
+    return nullptr;
+  }
+  auto buffer = RefPtr<AndroidHardwareBuffer>(it->second);
+  return buffer.forget();
+}
+
+}  // namespace layers
+}  // namespace mozilla