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/*
* Copyright 2022 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "Allocator.h"
#include <aidl/android/hardware/graphics/allocator/AllocationError.h>
#include <aidlcommonsupport/NativeHandle.h>
#include <android-base/logging.h>
#include <android/binder_ibinder_platform.h>
#include <gralloctypes/Gralloc4.h>
#include <log/log.h>
#include "cros_gralloc/gralloc4/CrosGralloc4Utils.h"
using aidl::android::hardware::common::NativeHandle;
using BufferDescriptorInfoV4 =
android::hardware::graphics::mapper::V4_0::IMapper::BufferDescriptorInfo;
static const std::string STANDARD_METADATA_DATASPACE = "android.hardware.graphics.common.Dataspace";
namespace aidl::android::hardware::graphics::allocator::impl {
namespace {
inline ndk::ScopedAStatus ToBinderStatus(AllocationError error) {
return ndk::ScopedAStatus::fromServiceSpecificError(static_cast<int32_t>(error));
}
ndk::ScopedAStatus convertToCrosDescriptor(const BufferDescriptorInfo& info,
struct cros_gralloc_buffer_descriptor& crosDescriptor) {
const BufferDescriptorInfoV4 mapperV4Descriptor = {
.name{reinterpret_cast<const char*>(info.name.data())},
.width = static_cast<uint32_t>(info.width),
.height = static_cast<uint32_t>(info.height),
.layerCount = static_cast<uint32_t>(info.layerCount),
.format = static_cast<::android::hardware::graphics::common::V1_2::PixelFormat>(info.format),
.usage = static_cast<uint64_t>(info.usage),
.reservedSize = 0,
};
if (convertToCrosDescriptor(mapperV4Descriptor, &crosDescriptor)) {
return ToBinderStatus(AllocationError::UNSUPPORTED);
}
for (const auto& option : info.additionalOptions) {
if (option.name != STANDARD_METADATA_DATASPACE) {
return ToBinderStatus(AllocationError::UNSUPPORTED);
}
crosDescriptor.dataspace = static_cast<common::Dataspace>(option.value);
}
return ndk::ScopedAStatus::ok();
}
} // namespace
bool Allocator::init() {
mDriver = cros_gralloc_driver::get_instance();
return mDriver != nullptr;
}
void Allocator::releaseBufferAndHandle(native_handle_t* handle) {
mDriver->release(handle);
native_handle_close(handle);
native_handle_delete(handle);
}
ndk::ScopedAStatus Allocator::allocate(const std::vector<uint8_t>& encodedDescriptor, int32_t count,
allocator::AllocationResult* outResult) {
if (!mDriver) {
ALOGE("Failed to allocate. Driver is uninitialized.\n");
return ToBinderStatus(AllocationError::NO_RESOURCES);
}
BufferDescriptorInfoV4 mapperV4Descriptor;
int ret = ::android::gralloc4::decodeBufferDescriptorInfo(encodedDescriptor, &mapperV4Descriptor);
if (ret) {
ALOGE("Failed to allocate. Failed to decode buffer descriptor: %d.\n", ret);
return ToBinderStatus(AllocationError::BAD_DESCRIPTOR);
}
struct cros_gralloc_buffer_descriptor crosDescriptor = {};
if (convertToCrosDescriptor(mapperV4Descriptor, &crosDescriptor)) {
return ToBinderStatus(AllocationError::UNSUPPORTED);
}
return allocate(crosDescriptor, count, outResult);
}
ndk::ScopedAStatus Allocator::allocate2(const BufferDescriptorInfo& descriptor, int32_t count,
allocator::AllocationResult* outResult) {
if (!mDriver) {
ALOGE("Failed to allocate. Driver is uninitialized.\n");
return ToBinderStatus(AllocationError::NO_RESOURCES);
}
struct cros_gralloc_buffer_descriptor crosDescriptor = {};
ndk::ScopedAStatus status = convertToCrosDescriptor(descriptor, crosDescriptor);
if (!status.isOk()) {
return status;
}
return allocate(crosDescriptor, count, outResult);
}
ndk::ScopedAStatus Allocator::allocate(const struct cros_gralloc_buffer_descriptor& descriptor, int32_t count,
allocator::AllocationResult* outResult) {
if (!mDriver) {
ALOGE("Failed to allocate. Driver is uninitialized.\n");
return ToBinderStatus(AllocationError::NO_RESOURCES);
}
std::vector<native_handle_t*> handles;
handles.resize(count, nullptr);
for (int32_t i = 0; i < count; i++) {
ndk::ScopedAStatus status = allocateBuffer(descriptor, &outResult->stride, &handles[i]);
if (!status.isOk()) {
for (int32_t j = 0; j < i; j++) {
releaseBufferAndHandle(handles[j]);
}
return status;
}
}
outResult->buffers.resize(count);
for (int32_t i = 0; i < count; i++) {
auto handle = handles[i];
outResult->buffers[i] = ::android::dupToAidl(handle);
releaseBufferAndHandle(handle);
}
return ndk::ScopedAStatus::ok();
}
ndk::ScopedAStatus Allocator::allocateBuffer(const struct cros_gralloc_buffer_descriptor& descriptor, int32_t* outStride,
native_handle_t** outHandle) {
if (!mDriver) {
ALOGE("Failed to allocate. Driver is uninitialized.\n");
return ToBinderStatus(AllocationError::NO_RESOURCES);
}
if (!mDriver->is_supported(&descriptor)) {
const std::string drmFormatString =
get_drm_format_string(descriptor.drm_format);
const std::string pixelFormatString = ::android::hardware::graphics::common::V1_2::toString(
static_cast<::android::hardware::graphics::common::V1_2::PixelFormat>(
descriptor.droid_format));
const std::string usageString = ::android::hardware::graphics::common::V1_2::toString<::android::hardware::graphics::common::V1_2::BufferUsage>(
static_cast<uint64_t>(descriptor.droid_usage));
ALOGE("Failed to allocate. Unsupported combination: pixel format:%s, drm format:%s, "
"usage:%s\n",
pixelFormatString.c_str(), drmFormatString.c_str(), usageString.c_str());
return ToBinderStatus(AllocationError::UNSUPPORTED);
}
native_handle_t* handle;
int ret = mDriver->allocate(&descriptor, &handle);
if (ret) {
return ToBinderStatus(AllocationError::NO_RESOURCES);
}
cros_gralloc_handle_t crosHandle = cros_gralloc_convert_handle(handle);
*outStride = static_cast<int32_t>(crosHandle->pixel_stride);
*outHandle = handle;
return ndk::ScopedAStatus::ok();
}
ndk::ScopedAStatus Allocator::isSupported(const BufferDescriptorInfo& descriptor,
bool* outResult) {
if (!mDriver) {
ALOGE("Failed to allocate. Driver is uninitialized.\n");
return ToBinderStatus(AllocationError::NO_RESOURCES);
}
for (const auto& option : descriptor.additionalOptions) {
if (option.name != STANDARD_METADATA_DATASPACE) {
*outResult = false;
return ndk::ScopedAStatus::ok();
}
}
struct cros_gralloc_buffer_descriptor crosDescriptor = {};
ndk::ScopedAStatus status = convertToCrosDescriptor(descriptor, crosDescriptor);
if (!status.isOk()) {
// Failing to convert the descriptor means the layer count, pixel format, or usage is
// unsupported, thus isSupported() = false
*outResult = false;
return ndk::ScopedAStatus::ok();
}
*outResult = mDriver->is_supported(&crosDescriptor);
return ndk::ScopedAStatus::ok();
}
ndk::ScopedAStatus Allocator::getIMapperLibrarySuffix(std::string* outResult) {
*outResult = "minigbm";
return ndk::ScopedAStatus::ok();
}
::ndk::SpAIBinder Allocator::createBinder() {
auto binder = BnAllocator::createBinder();
AIBinder_setInheritRt(binder.get(), true);
return binder;
}
} // namespace aidl::android::hardware::graphics::allocator::impl
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