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/*
* 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.
*/
#undef LOG_TAG
#define LOG_TAG "Gralloc1On0Adapter"
//#define LOG_NDEBUG 0
#include <ui/Gralloc1On0Adapter.h>
#include <hardware/gralloc.h>
#include <ui/GraphicBuffer.h>
#include <ui/Gralloc1.h>
#include <utils/Log.h>
#include <inttypes.h>
template <typename PFN, typename T>
static gralloc1_function_pointer_t asFP(T function)
{
static_assert(std::is_same<PFN, T>::value, "Incompatible function pointer");
return reinterpret_cast<gralloc1_function_pointer_t>(function);
}
namespace android {
Gralloc1On0Adapter::Gralloc1On0Adapter(const hw_module_t* module)
: mModule(reinterpret_cast<const gralloc_module_t*>(module)),
mMinorVersion(mModule->common.module_api_version & 0xFF),
mDevice(nullptr)
{
ALOGV("Constructing");
getCapabilities = getCapabilitiesHook;
getFunction = getFunctionHook;
int error = ::gralloc_open(&(mModule->common), &mDevice);
if (error) {
ALOGE("Failed to open gralloc0 module: %d", error);
}
ALOGV("Opened gralloc0 device %p", mDevice);
}
Gralloc1On0Adapter::~Gralloc1On0Adapter()
{
ALOGV("Destructing");
if (mDevice) {
ALOGV("Closing gralloc0 device %p", mDevice);
::gralloc_close(mDevice);
}
}
void Gralloc1On0Adapter::doGetCapabilities(uint32_t* outCount,
int32_t* outCapabilities)
{
if (outCapabilities == nullptr) {
*outCount = 1;
return;
}
if (*outCount >= 1) {
*outCapabilities = GRALLOC1_CAPABILITY_ON_ADAPTER;
*outCount = 1;
}
}
gralloc1_function_pointer_t Gralloc1On0Adapter::doGetFunction(
int32_t intDescriptor)
{
constexpr auto lastDescriptor =
static_cast<int32_t>(GRALLOC1_LAST_ADAPTER_FUNCTION);
if (intDescriptor < 0 || intDescriptor > lastDescriptor) {
ALOGE("Invalid function descriptor");
return nullptr;
}
auto descriptor =
static_cast<gralloc1_function_descriptor_t>(intDescriptor);
switch (descriptor) {
case GRALLOC1_FUNCTION_DUMP:
return asFP<GRALLOC1_PFN_DUMP>(dumpHook);
case GRALLOC1_FUNCTION_CREATE_DESCRIPTOR:
return asFP<GRALLOC1_PFN_CREATE_DESCRIPTOR>(createDescriptorHook);
case GRALLOC1_FUNCTION_DESTROY_DESCRIPTOR:
return asFP<GRALLOC1_PFN_DESTROY_DESCRIPTOR>(destroyDescriptorHook);
case GRALLOC1_FUNCTION_SET_CONSUMER_USAGE:
return asFP<GRALLOC1_PFN_SET_CONSUMER_USAGE>(setConsumerUsageHook);
case GRALLOC1_FUNCTION_SET_DIMENSIONS:
return asFP<GRALLOC1_PFN_SET_DIMENSIONS>(setDimensionsHook);
case GRALLOC1_FUNCTION_SET_FORMAT:
return asFP<GRALLOC1_PFN_SET_FORMAT>(setFormatHook);
case GRALLOC1_FUNCTION_SET_LAYER_COUNT:
return asFP<GRALLOC1_PFN_SET_LAYER_COUNT>(setLayerCountHook);
case GRALLOC1_FUNCTION_SET_PRODUCER_USAGE:
return asFP<GRALLOC1_PFN_SET_PRODUCER_USAGE>(setProducerUsageHook);
case GRALLOC1_FUNCTION_GET_BACKING_STORE:
return asFP<GRALLOC1_PFN_GET_BACKING_STORE>(
bufferHook<decltype(&Buffer::getBackingStore),
&Buffer::getBackingStore, gralloc1_backing_store_t*>);
case GRALLOC1_FUNCTION_GET_CONSUMER_USAGE:
return asFP<GRALLOC1_PFN_GET_CONSUMER_USAGE>(getConsumerUsageHook);
case GRALLOC1_FUNCTION_GET_DIMENSIONS:
return asFP<GRALLOC1_PFN_GET_DIMENSIONS>(
bufferHook<decltype(&Buffer::getDimensions),
&Buffer::getDimensions, uint32_t*, uint32_t*>);
case GRALLOC1_FUNCTION_GET_FORMAT:
return asFP<GRALLOC1_PFN_GET_FORMAT>(
bufferHook<decltype(&Buffer::getFormat),
&Buffer::getFormat, int32_t*>);
case GRALLOC1_FUNCTION_GET_LAYER_COUNT:
return asFP<GRALLOC1_PFN_GET_LAYER_COUNT>(
bufferHook<decltype(&Buffer::getLayerCount),
&Buffer::getLayerCount, uint32_t*>);
case GRALLOC1_FUNCTION_GET_PRODUCER_USAGE:
return asFP<GRALLOC1_PFN_GET_PRODUCER_USAGE>(getProducerUsageHook);
case GRALLOC1_FUNCTION_GET_STRIDE:
return asFP<GRALLOC1_PFN_GET_STRIDE>(
bufferHook<decltype(&Buffer::getStride),
&Buffer::getStride, uint32_t*>);
case GRALLOC1_FUNCTION_ALLOCATE:
// Not provided, since we'll use ALLOCATE_WITH_ID
return nullptr;
case GRALLOC1_FUNCTION_ALLOCATE_WITH_ID:
if (mDevice != nullptr) {
return asFP<GRALLOC1_PFN_ALLOCATE_WITH_ID>(allocateWithIdHook);
} else {
return nullptr;
}
case GRALLOC1_FUNCTION_RETAIN:
return asFP<GRALLOC1_PFN_RETAIN>(
managementHook<&Gralloc1On0Adapter::retain>);
case GRALLOC1_FUNCTION_RELEASE:
return asFP<GRALLOC1_PFN_RELEASE>(
managementHook<&Gralloc1On0Adapter::release>);
case GRALLOC1_FUNCTION_RETAIN_GRAPHIC_BUFFER:
return asFP<GRALLOC1_PFN_RETAIN_GRAPHIC_BUFFER>(
retainGraphicBufferHook);
case GRALLOC1_FUNCTION_GET_NUM_FLEX_PLANES:
return asFP<GRALLOC1_PFN_GET_NUM_FLEX_PLANES>(
bufferHook<decltype(&Buffer::getNumFlexPlanes),
&Buffer::getNumFlexPlanes, uint32_t*>);
case GRALLOC1_FUNCTION_LOCK:
return asFP<GRALLOC1_PFN_LOCK>(
lockHook<void*, &Gralloc1On0Adapter::lock>);
case GRALLOC1_FUNCTION_LOCK_FLEX:
return asFP<GRALLOC1_PFN_LOCK_FLEX>(
lockHook<struct android_flex_layout,
&Gralloc1On0Adapter::lockFlex>);
case GRALLOC1_FUNCTION_LOCK_YCBCR:
return asFP<GRALLOC1_PFN_LOCK_YCBCR>(
lockHook<struct android_ycbcr,
&Gralloc1On0Adapter::lockYCbCr>);
case GRALLOC1_FUNCTION_UNLOCK:
return asFP<GRALLOC1_PFN_UNLOCK>(unlockHook);
case GRALLOC1_FUNCTION_INVALID:
ALOGE("Invalid function descriptor");
return nullptr;
}
ALOGE("Unknown function descriptor: %d", intDescriptor);
return nullptr;
}
void Gralloc1On0Adapter::dump(uint32_t* outSize, char* outBuffer)
{
ALOGV("dump(%u (%p), %p", outSize ? *outSize : 0, outSize, outBuffer);
if (!mDevice->dump) {
// dump is optional on gralloc0 implementations
*outSize = 0;
return;
}
if (!outBuffer) {
constexpr int32_t BUFFER_LENGTH = 4096;
char buffer[BUFFER_LENGTH] = {};
mDevice->dump(mDevice, buffer, BUFFER_LENGTH);
buffer[BUFFER_LENGTH - 1] = 0; // Ensure the buffer is null-terminated
size_t actualLength = std::strlen(buffer);
mCachedDump.resize(actualLength);
std::copy_n(buffer, actualLength, mCachedDump.begin());
*outSize = static_cast<uint32_t>(actualLength);
} else {
*outSize = std::min(*outSize,
static_cast<uint32_t>(mCachedDump.size()));
outBuffer = std::copy_n(mCachedDump.cbegin(), *outSize, outBuffer);
}
}
gralloc1_error_t Gralloc1On0Adapter::createDescriptor(
gralloc1_buffer_descriptor_t* outDescriptor)
{
auto descriptorId = sNextBufferDescriptorId++;
std::lock_guard<std::mutex> lock(mDescriptorMutex);
mDescriptors.emplace(descriptorId,
std::make_shared<Descriptor>(this, descriptorId));
ALOGV("Created descriptor %" PRIu64, descriptorId);
*outDescriptor = descriptorId;
return GRALLOC1_ERROR_NONE;
}
gralloc1_error_t Gralloc1On0Adapter::destroyDescriptor(
gralloc1_buffer_descriptor_t descriptor)
{
ALOGV("Destroying descriptor %" PRIu64, descriptor);
std::lock_guard<std::mutex> lock(mDescriptorMutex);
if (mDescriptors.count(descriptor) == 0) {
return GRALLOC1_ERROR_BAD_DESCRIPTOR;
}
mDescriptors.erase(descriptor);
return GRALLOC1_ERROR_NONE;
}
Gralloc1On0Adapter::Buffer::Buffer(buffer_handle_t handle,
gralloc1_backing_store_t store, const Descriptor& descriptor,
uint32_t stride, bool wasAllocated)
: mHandle(handle),
mReferenceCount(1),
mStore(store),
mDescriptor(descriptor),
mStride(stride),
mWasAllocated(wasAllocated) {}
gralloc1_error_t Gralloc1On0Adapter::allocate(
const std::shared_ptr<Descriptor>& descriptor,
gralloc1_backing_store_t store,
buffer_handle_t* outBufferHandle)
{
ALOGV("allocate(%" PRIu64 ", %#" PRIx64 ")", descriptor->id, store);
// If this function is being called, it's because we handed out its function
// pointer, which only occurs when mDevice has been loaded successfully and
// we are permitted to allocate
int usage = static_cast<int>(descriptor->producerUsage) |
static_cast<int>(descriptor->consumerUsage);
buffer_handle_t handle = nullptr;
int stride = 0;
ALOGV("Calling alloc(%p, %u, %u, %i, %u)", mDevice, descriptor->width,
descriptor->height, descriptor->format, usage);
auto error = mDevice->alloc(mDevice,
static_cast<int>(descriptor->width),
static_cast<int>(descriptor->height), descriptor->format,
usage, &handle, &stride);
if (error != 0) {
ALOGE("gralloc0 allocation failed: %d (%s)", error,
strerror(-error));
return GRALLOC1_ERROR_NO_RESOURCES;
}
*outBufferHandle = handle;
auto buffer = std::make_shared<Buffer>(handle, store, *descriptor, stride,
true);
std::lock_guard<std::mutex> lock(mBufferMutex);
mBuffers.emplace(handle, std::move(buffer));
return GRALLOC1_ERROR_NONE;
}
gralloc1_error_t Gralloc1On0Adapter::allocateWithIdHook(
gralloc1_device_t* device, gralloc1_buffer_descriptor_t descriptorId,
gralloc1_backing_store_t store, buffer_handle_t* outBuffer)
{
auto adapter = getAdapter(device);
auto descriptor = adapter->getDescriptor(descriptorId);
if (!descriptor) {
return GRALLOC1_ERROR_BAD_DESCRIPTOR;
}
buffer_handle_t bufferHandle = nullptr;
auto error = adapter->allocate(descriptor, store, &bufferHandle);
if (error != GRALLOC1_ERROR_NONE) {
return error;
}
*outBuffer = bufferHandle;
return error;
}
gralloc1_error_t Gralloc1On0Adapter::retain(
const std::shared_ptr<Buffer>& buffer)
{
std::lock_guard<std::mutex> lock(mBufferMutex);
buffer->retain();
return GRALLOC1_ERROR_NONE;
}
gralloc1_error_t Gralloc1On0Adapter::release(
const std::shared_ptr<Buffer>& buffer)
{
std::lock_guard<std::mutex> lock(mBufferMutex);
if (!buffer->release()) {
return GRALLOC1_ERROR_NONE;
}
buffer_handle_t handle = buffer->getHandle();
if (buffer->wasAllocated()) {
ALOGV("Calling free(%p)", handle);
int result = mDevice->free(mDevice, handle);
if (result != 0) {
ALOGE("gralloc0 free failed: %d", result);
}
} else {
ALOGV("Calling unregisterBuffer(%p)", handle);
int result = mModule->unregisterBuffer(mModule, handle);
if (result != 0) {
ALOGE("gralloc0 unregister failed: %d", result);
}
}
mBuffers.erase(handle);
return GRALLOC1_ERROR_NONE;
}
gralloc1_error_t Gralloc1On0Adapter::retain(
const android::GraphicBuffer* graphicBuffer)
{
ALOGV("retainGraphicBuffer(%p, %#" PRIx64 ")",
graphicBuffer->getNativeBuffer()->handle, graphicBuffer->getId());
buffer_handle_t handle = graphicBuffer->getNativeBuffer()->handle;
std::lock_guard<std::mutex> lock(mBufferMutex);
if (mBuffers.count(handle) != 0) {
mBuffers[handle]->retain();
return GRALLOC1_ERROR_NONE;
}
ALOGV("Calling registerBuffer(%p)", handle);
int result = mModule->registerBuffer(mModule, handle);
if (result != 0) {
ALOGE("gralloc0 register failed: %d", result);
return GRALLOC1_ERROR_NO_RESOURCES;
}
Descriptor descriptor{this, sNextBufferDescriptorId++};
descriptor.setDimensions(graphicBuffer->getWidth(),
graphicBuffer->getHeight());
descriptor.setFormat(graphicBuffer->getPixelFormat());
descriptor.setProducerUsage(
static_cast<gralloc1_producer_usage_t>(graphicBuffer->getUsage()));
descriptor.setConsumerUsage(
static_cast<gralloc1_consumer_usage_t>(graphicBuffer->getUsage()));
auto buffer = std::make_shared<Buffer>(handle,
static_cast<gralloc1_backing_store_t>(graphicBuffer->getId()),
descriptor, graphicBuffer->getStride(), false);
mBuffers.emplace(handle, std::move(buffer));
return GRALLOC1_ERROR_NONE;
}
gralloc1_error_t Gralloc1On0Adapter::lock(
const std::shared_ptr<Buffer>& buffer,
gralloc1_producer_usage_t producerUsage,
gralloc1_consumer_usage_t consumerUsage,
const gralloc1_rect_t& accessRegion, void** outData,
const sp<Fence>& acquireFence)
{
if (mMinorVersion >= 3) {
int result = mModule->lockAsync(mModule, buffer->getHandle(),
static_cast<int32_t>(producerUsage | consumerUsage),
accessRegion.left, accessRegion.top, accessRegion.width,
accessRegion.height, outData, acquireFence->dup());
if (result != 0) {
return GRALLOC1_ERROR_UNSUPPORTED;
}
} else {
acquireFence->waitForever("Gralloc1On0Adapter::lock");
int result = mModule->lock(mModule, buffer->getHandle(),
static_cast<int32_t>(producerUsage | consumerUsage),
accessRegion.left, accessRegion.top, accessRegion.width,
accessRegion.height, outData);
ALOGV("gralloc0 lock returned %d", result);
if (result != 0) {
return GRALLOC1_ERROR_UNSUPPORTED;
}
}
return GRALLOC1_ERROR_NONE;
}
gralloc1_error_t Gralloc1On0Adapter::lockFlex(
const std::shared_ptr<Buffer>& /*buffer*/,
gralloc1_producer_usage_t /*producerUsage*/,
gralloc1_consumer_usage_t /*consumerUsage*/,
const gralloc1_rect_t& /*accessRegion*/,
struct android_flex_layout* /*outData*/,
const sp<Fence>& /*acquireFence*/)
{
// TODO
return GRALLOC1_ERROR_UNSUPPORTED;
}
gralloc1_error_t Gralloc1On0Adapter::lockYCbCr(
const std::shared_ptr<Buffer>& buffer,
gralloc1_producer_usage_t producerUsage,
gralloc1_consumer_usage_t consumerUsage,
const gralloc1_rect_t& accessRegion, struct android_ycbcr* outData,
const sp<Fence>& acquireFence)
{
if (mMinorVersion >= 3 && mModule->lockAsync_ycbcr) {
int result = mModule->lockAsync_ycbcr(mModule, buffer->getHandle(),
static_cast<int>(producerUsage | consumerUsage),
accessRegion.left, accessRegion.top, accessRegion.width,
accessRegion.height, outData, acquireFence->dup());
if (result != 0) {
return GRALLOC1_ERROR_UNSUPPORTED;
}
} else if (mModule->lock_ycbcr) {
acquireFence->waitForever("Gralloc1On0Adapter::lockYCbCr");
int result = mModule->lock_ycbcr(mModule, buffer->getHandle(),
static_cast<int>(producerUsage | consumerUsage),
accessRegion.left, accessRegion.top, accessRegion.width,
accessRegion.height, outData);
ALOGV("gralloc0 lockYCbCr returned %d", result);
if (result != 0) {
return GRALLOC1_ERROR_UNSUPPORTED;
}
} else {
return GRALLOC1_ERROR_UNSUPPORTED;
}
return GRALLOC1_ERROR_NONE;
}
gralloc1_error_t Gralloc1On0Adapter::unlock(
const std::shared_ptr<Buffer>& buffer,
sp<Fence>* outReleaseFence)
{
if (mMinorVersion >= 3) {
int fenceFd = -1;
int result = mModule->unlockAsync(mModule, buffer->getHandle(),
&fenceFd);
if (result != 0) {
close(fenceFd);
ALOGE("gralloc0 unlockAsync failed: %d", result);
} else {
*outReleaseFence = new Fence(fenceFd);
}
} else {
int result = mModule->unlock(mModule, buffer->getHandle());
if (result != 0) {
ALOGE("gralloc0 unlock failed: %d", result);
}
}
return GRALLOC1_ERROR_NONE;
}
std::shared_ptr<Gralloc1On0Adapter::Descriptor>
Gralloc1On0Adapter::getDescriptor(gralloc1_buffer_descriptor_t descriptorId)
{
std::lock_guard<std::mutex> lock(mDescriptorMutex);
if (mDescriptors.count(descriptorId) == 0) {
return nullptr;
}
return mDescriptors[descriptorId];
}
std::shared_ptr<Gralloc1On0Adapter::Buffer> Gralloc1On0Adapter::getBuffer(
buffer_handle_t bufferHandle)
{
std::lock_guard<std::mutex> lock(mBufferMutex);
if (mBuffers.count(bufferHandle) == 0) {
return nullptr;
}
return mBuffers[bufferHandle];
}
std::atomic<gralloc1_buffer_descriptor_t>
Gralloc1On0Adapter::sNextBufferDescriptorId(1);
} // namespace android