libui: update for revised HIDL gralloc
The revised HIDL gralloc is implementable on top of gralloc0 and
gralloc1, which enables us to remove all legacy code.
However, it lacks the ability to query buffer properties from a
buffer handle. GetBufferFromHandle in VR always fails.
Bug: 36481301
Test: builds and boots on Pixel
Change-Id: Id7cfa2d2172dfc008803860f24fcf4f03ba05f11
diff --git a/libs/ui/Gralloc2.cpp b/libs/ui/Gralloc2.cpp
new file mode 100644
index 0000000..75f5686
--- /dev/null
+++ b/libs/ui/Gralloc2.cpp
@@ -0,0 +1,248 @@
+/*
+ * Copyright 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "Gralloc2"
+
+#include <ui/Gralloc2.h>
+
+#include <log/log.h>
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wzero-length-array"
+#include <sync/sync.h>
+#pragma clang diagnostic pop
+
+namespace android {
+
+namespace Gralloc2 {
+
+static constexpr Error kTransactionError = Error::NO_RESOURCES;
+
+Mapper::Mapper()
+{
+ mMapper = IMapper::getService();
+ if (mMapper != nullptr && mMapper->isRemote()) {
+ LOG_ALWAYS_FATAL("gralloc-mapper must be in passthrough mode");
+ }
+}
+
+Error Mapper::createDescriptor(
+ const IMapper::BufferDescriptorInfo& descriptorInfo,
+ BufferDescriptor* outDescriptor) const
+{
+ Error error;
+ auto ret = mMapper->createDescriptor(descriptorInfo,
+ [&](const auto& tmpError, const auto& tmpDescriptor)
+ {
+ error = tmpError;
+ if (error != Error::NONE) {
+ return;
+ }
+
+ *outDescriptor = tmpDescriptor;
+ });
+
+ return (ret.isOk()) ? error : kTransactionError;
+}
+
+Error Mapper::importBuffer(const hardware::hidl_handle& rawHandle,
+ buffer_handle_t* outBufferHandle) const
+{
+ Error error;
+ auto ret = mMapper->importBuffer(rawHandle,
+ [&](const auto& tmpError, const auto& tmpBuffer)
+ {
+ error = tmpError;
+ if (error != Error::NONE) {
+ return;
+ }
+
+ *outBufferHandle = static_cast<buffer_handle_t>(tmpBuffer);
+ });
+
+ return (ret.isOk()) ? error : kTransactionError;
+}
+
+void Mapper::freeBuffer(buffer_handle_t bufferHandle) const
+{
+ auto buffer = const_cast<native_handle_t*>(bufferHandle);
+ auto ret = mMapper->freeBuffer(buffer);
+
+ auto error = (ret.isOk()) ? static_cast<Error>(ret) : kTransactionError;
+ ALOGE_IF(error != Error::NONE, "freeBuffer(%p) failed with %d",
+ buffer, error);
+}
+
+Error Mapper::lock(buffer_handle_t bufferHandle, uint64_t usage,
+ const IMapper::Rect& accessRegion,
+ int acquireFence, void** outData) const
+{
+ auto buffer = const_cast<native_handle_t*>(bufferHandle);
+
+ // put acquireFence in a hidl_handle
+ hardware::hidl_handle acquireFenceHandle;
+ NATIVE_HANDLE_DECLARE_STORAGE(acquireFenceStorage, 1, 0);
+ if (acquireFence >= 0) {
+ auto h = native_handle_init(acquireFenceStorage, 1, 0);
+ h->data[0] = acquireFence;
+ acquireFenceHandle = h;
+ }
+
+ Error error;
+ auto ret = mMapper->lock(buffer, usage, accessRegion, acquireFenceHandle,
+ [&](const auto& tmpError, const auto& tmpData)
+ {
+ error = tmpError;
+ if (error != Error::NONE) {
+ return;
+ }
+
+ *outData = tmpData;
+ });
+
+ // we own acquireFence even on errors
+ if (acquireFence >= 0) {
+ close(acquireFence);
+ }
+
+ return (ret.isOk()) ? error : kTransactionError;
+}
+
+Error Mapper::lock(buffer_handle_t bufferHandle, uint64_t usage,
+ const IMapper::Rect& accessRegion,
+ int acquireFence, YCbCrLayout* outLayout) const
+{
+ auto buffer = const_cast<native_handle_t*>(bufferHandle);
+
+ // put acquireFence in a hidl_handle
+ hardware::hidl_handle acquireFenceHandle;
+ NATIVE_HANDLE_DECLARE_STORAGE(acquireFenceStorage, 1, 0);
+ if (acquireFence >= 0) {
+ auto h = native_handle_init(acquireFenceStorage, 1, 0);
+ h->data[0] = acquireFence;
+ acquireFenceHandle = h;
+ }
+
+ Error error;
+ auto ret = mMapper->lockYCbCr(buffer, usage, accessRegion,
+ acquireFenceHandle,
+ [&](const auto& tmpError, const auto& tmpLayout)
+ {
+ error = tmpError;
+ if (error != Error::NONE) {
+ return;
+ }
+
+ *outLayout = tmpLayout;
+ });
+
+ // we own acquireFence even on errors
+ if (acquireFence >= 0) {
+ close(acquireFence);
+ }
+
+ return (ret.isOk()) ? error : kTransactionError;
+}
+
+int Mapper::unlock(buffer_handle_t bufferHandle) const
+{
+ auto buffer = const_cast<native_handle_t*>(bufferHandle);
+
+ int releaseFence = -1;
+ Error error;
+ auto ret = mMapper->unlock(buffer,
+ [&](const auto& tmpError, const auto& tmpReleaseFence)
+ {
+ error = tmpError;
+ if (error != Error::NONE) {
+ return;
+ }
+
+ auto fenceHandle = tmpReleaseFence.getNativeHandle();
+ if (fenceHandle && fenceHandle->numFds == 1) {
+ int fd = dup(fenceHandle->data[0]);
+ if (fd >= 0) {
+ releaseFence = fd;
+ } else {
+ ALOGD("failed to dup unlock release fence");
+ sync_wait(fenceHandle->data[0], -1);
+ }
+ }
+ });
+
+ if (!ret.isOk()) {
+ error = kTransactionError;
+ }
+
+ if (error != Error::NONE) {
+ ALOGE("unlock(%p) failed with %d", buffer, error);
+ }
+
+ return releaseFence;
+}
+
+Allocator::Allocator(const Mapper& mapper)
+ : mMapper(mapper)
+{
+ if (mMapper.valid()) {
+ mAllocator = IAllocator::getService();
+ }
+}
+
+std::string Allocator::dumpDebugInfo() const
+{
+ std::string debugInfo;
+
+ mAllocator->dumpDebugInfo([&](const auto& tmpDebugInfo) {
+ debugInfo = tmpDebugInfo.c_str();
+ });
+
+ return debugInfo;
+}
+
+Error Allocator::allocate(BufferDescriptor descriptor, uint32_t count,
+ uint32_t* outStride, buffer_handle_t* outBufferHandles) const
+{
+ Error error;
+ auto ret = mAllocator->allocate(descriptor, count,
+ [&](const auto& tmpError, const auto& tmpStride,
+ const auto& tmpBuffers) {
+ error = tmpError;
+ if (tmpError != Error::NONE) {
+ return;
+ }
+
+ // import buffers
+ for (uint32_t i = 0; i < count; i++) {
+ error = mMapper.importBuffer(tmpBuffers[i],
+ &outBufferHandles[i]);
+ if (error != Error::NONE) {
+ for (uint32_t j = 0; j < i; j++) {
+ mMapper.freeBuffer(outBufferHandles[j]);
+ outBufferHandles[j] = nullptr;
+ }
+ return;
+ }
+ }
+
+ *outStride = tmpStride;
+ });
+
+ return (ret.isOk()) ? error : kTransactionError;
+}
+
+} // namespace Gralloc2
+
+} // namespace android