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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.
*/
#define LOG_TAG "GrallocMapper"
#include <array>
#include <string>
#include <log/log.h>
#include <ui/GrallocMapper.h>
namespace android {
namespace Gralloc2 {
static constexpr Error kDefaultError = Error::NO_RESOURCES;
Mapper::Mapper()
{
mMapper = IMapper::getService("gralloc-mapper");
if (mMapper != nullptr && mMapper->isRemote()) {
LOG_ALWAYS_FATAL("gralloc-mapper must be in passthrough mode");
}
}
Error Mapper::retain(buffer_handle_t handle) const
{
auto ret = mMapper->retain(handle);
return (ret.isOk()) ? static_cast<Error>(ret) : kDefaultError;
}
void Mapper::release(buffer_handle_t handle) const
{
auto ret = mMapper->release(handle);
auto error = (ret.isOk()) ? static_cast<Error>(ret) : kDefaultError;
ALOGE_IF(error != Error::NONE,
"release(%p) failed with %d", handle, error);
}
Error Mapper::getStride(buffer_handle_t handle, uint32_t* outStride) const
{
Error error = kDefaultError;
mMapper->getStride(handle,
[&](const auto& tmpError, const auto& tmpStride)
{
error = tmpError;
if (error != Error::NONE) {
return;
}
*outStride = tmpStride;
});
return error;
}
Error Mapper::lock(buffer_handle_t handle,
uint64_t producerUsageMask,
uint64_t consumerUsageMask,
const IMapper::Rect& accessRegion,
int acquireFence, void** outData) const
{
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 = kDefaultError;
mMapper->lock(handle, producerUsageMask, consumerUsageMask,
accessRegion, acquireFenceHandle,
[&](const auto& tmpError, const auto& tmpData)
{
error = tmpError;
if (error != Error::NONE) {
return;
}
*outData = tmpData;
});
if (error == Error::NONE && acquireFence >= 0) {
close(acquireFence);
}
return error;
}
Error Mapper::lock(buffer_handle_t handle,
uint64_t producerUsageMask,
uint64_t consumerUsageMask,
const IMapper::Rect& accessRegion,
int acquireFence, FlexLayout* outLayout) const
{
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 = kDefaultError;
mMapper->lockFlex(handle, producerUsageMask, consumerUsageMask,
accessRegion, acquireFenceHandle,
[&](const auto& tmpError, const auto& tmpLayout)
{
error = tmpError;
if (error != Error::NONE) {
return;
}
*outLayout = tmpLayout;
});
if (error == Error::NONE && acquireFence >= 0) {
close(acquireFence);
}
return error;
}
int Mapper::unlock(buffer_handle_t handle) const
{
int releaseFence = -1;
Error error = kDefaultError;
mMapper->unlock(handle,
[&](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 {
error = Error::NO_RESOURCES;
}
} else {
releaseFence = -1;
}
});
if (error != Error::NONE) {
ALOGE("unlock(%p) failed with %d", handle, error);
releaseFence = -1;
}
return releaseFence;
}
} // namespace Gralloc2
} // namespace android
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