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-rw-r--r--libs/ui/Android.bp3
-rw-r--r--libs/ui/Gralloc4.cpp94
-rw-r--r--libs/ui/include/ui/Gralloc4.h3
3 files changed, 100 insertions, 0 deletions
diff --git a/libs/ui/Android.bp b/libs/ui/Android.bp
index 006c4780ad..e9f3633e14 100644
--- a/libs/ui/Android.bp
+++ b/libs/ui/Android.bp
@@ -160,6 +160,7 @@ cc_library_shared {
"android.hardware.graphics.allocator@2.0",
"android.hardware.graphics.allocator@3.0",
"android.hardware.graphics.allocator@4.0",
+ "android.hardware.graphics.allocator-V1-ndk",
"android.hardware.graphics.common-V3-ndk",
"android.hardware.graphics.common@1.2",
"android.hardware.graphics.mapper@2.0",
@@ -167,6 +168,7 @@ cc_library_shared {
"android.hardware.graphics.mapper@3.0",
"android.hardware.graphics.mapper@4.0",
"libbase",
+ "libbinder_ndk",
"libcutils",
"libgralloctypes",
"libhidlbase",
@@ -183,6 +185,7 @@ cc_library_shared {
],
static_libs: [
+ "libaidlcommonsupport",
"libarect",
"libgrallocusage",
"libmath",
diff --git a/libs/ui/Gralloc4.cpp b/libs/ui/Gralloc4.cpp
index 8ac08fb70d..9241709c8c 100644
--- a/libs/ui/Gralloc4.cpp
+++ b/libs/ui/Gralloc4.cpp
@@ -16,6 +16,12 @@
#define LOG_TAG "Gralloc4"
+#include <aidl/android/hardware/graphics/allocator/AllocationError.h>
+#include <aidl/android/hardware/graphics/allocator/AllocationResult.h>
+#include <aidl/android/hardware/graphics/common/BufferUsage.h>
+#include <aidlcommonsupport/NativeHandle.h>
+#include <android/binder_enums.h>
+#include <android/binder_manager.h>
#include <hidl/ServiceManagement.h>
#include <hwbinder/IPCThreadState.h>
#include <ui/Gralloc4.h>
@@ -27,6 +33,8 @@
#include <sync/sync.h>
#pragma clang diagnostic pop
+using aidl::android::hardware::graphics::allocator::AllocationError;
+using aidl::android::hardware::graphics::allocator::AllocationResult;
using aidl::android::hardware::graphics::common::ExtendableType;
using aidl::android::hardware::graphics::common::PlaneLayoutComponentType;
using aidl::android::hardware::graphics::common::StandardMetadataType;
@@ -36,7 +44,10 @@ using android::hardware::graphics::common::V1_2::BufferUsage;
using android::hardware::graphics::mapper::V4_0::BufferDescriptor;
using android::hardware::graphics::mapper::V4_0::Error;
using android::hardware::graphics::mapper::V4_0::IMapper;
+using AidlIAllocator = ::aidl::android::hardware::graphics::allocator::IAllocator;
+using AidlBufferUsage = ::aidl::android::hardware::graphics::common::BufferUsage;
using AidlDataspace = ::aidl::android::hardware::graphics::common::Dataspace;
+using AidlNativeHandle = ::aidl::android::hardware::common::NativeHandle;
using BufferDump = android::hardware::graphics::mapper::V4_0::IMapper::BufferDump;
using MetadataDump = android::hardware::graphics::mapper::V4_0::IMapper::MetadataDump;
using MetadataType = android::hardware::graphics::mapper::V4_0::IMapper::MetadataType;
@@ -48,6 +59,7 @@ namespace android {
namespace {
static constexpr Error kTransactionError = Error::NO_RESOURCES;
+static const auto kAidlAllocatorServiceName = AidlIAllocator::descriptor + std::string("/default");
uint64_t getValidUsageBits() {
static const uint64_t validUsageBits = []() -> uint64_t {
@@ -61,6 +73,17 @@ uint64_t getValidUsageBits() {
return validUsageBits;
}
+uint64_t getValidUsageBits41() {
+ static const uint64_t validUsageBits = []() -> uint64_t {
+ uint64_t bits = 0;
+ for (const auto bit : ndk::enum_range<AidlBufferUsage>{}) {
+ bits |= static_cast<int64_t>(bit);
+ }
+ return bits;
+ }();
+ return validUsageBits;
+}
+
static inline IMapper::Rect sGralloc4Rect(const Rect& rect) {
IMapper::Rect outRect{};
outRect.left = rect.left;
@@ -81,6 +104,21 @@ static inline void sBufferDescriptorInfo(std::string name, uint32_t width, uint3
outDescriptorInfo->reservedSize = 0;
}
+// See if gralloc "4.1" is available.
+static bool hasIAllocatorAidl() {
+ // Avoid re-querying repeatedly for this information;
+ static bool sHasIAllocatorAidl = []() -> bool {
+ // TODO: Enable after landing sepolicy changes
+ if constexpr ((true)) return false;
+
+ if (__builtin_available(android 31, *)) {
+ return AServiceManager_isDeclared(kAidlAllocatorServiceName.c_str());
+ }
+ return false;
+ }();
+ return sHasIAllocatorAidl;
+}
+
} // anonymous namespace
void Gralloc4Mapper::preload() {
@@ -105,6 +143,9 @@ bool Gralloc4Mapper::isLoaded() const {
status_t Gralloc4Mapper::validateBufferDescriptorInfo(
IMapper::BufferDescriptorInfo* descriptorInfo) const {
uint64_t validUsageBits = getValidUsageBits();
+ if (hasIAllocatorAidl()) {
+ validUsageBits |= getValidUsageBits41();
+ }
if (descriptorInfo->usage & ~validUsageBits) {
ALOGE("buffer descriptor contains invalid usage bits 0x%" PRIx64,
@@ -1069,6 +1110,13 @@ Gralloc4Allocator::Gralloc4Allocator(const Gralloc4Mapper& mapper) : mMapper(map
ALOGW("allocator 4.x is not supported");
return;
}
+ if (__builtin_available(android 31, *)) {
+ if (hasIAllocatorAidl()) {
+ mAidlAllocator = AidlIAllocator::fromBinder(ndk::SpAIBinder(
+ AServiceManager_waitForService(kAidlAllocatorServiceName.c_str())));
+ ALOGE_IF(!mAidlAllocator, "AIDL IAllocator declared but failed to get service");
+ }
+ }
}
bool Gralloc4Allocator::isLoaded() const {
@@ -1093,6 +1141,52 @@ status_t Gralloc4Allocator::allocate(std::string requestorName, uint32_t width,
return error;
}
+ if (mAidlAllocator) {
+ AllocationResult result;
+ auto status = mAidlAllocator->allocate(descriptor, bufferCount, &result);
+ if (!status.isOk()) {
+ error = status.getExceptionCode();
+ if (error == EX_SERVICE_SPECIFIC) {
+ error = status.getServiceSpecificError();
+ }
+ if (error == OK) {
+ error = UNKNOWN_ERROR;
+ }
+ } else {
+ if (importBuffers) {
+ for (uint32_t i = 0; i < bufferCount; i++) {
+ error = mMapper.importBuffer(makeFromAidl(result.buffers[i]),
+ &outBufferHandles[i]);
+ if (error != NO_ERROR) {
+ for (uint32_t j = 0; j < i; j++) {
+ mMapper.freeBuffer(outBufferHandles[j]);
+ outBufferHandles[j] = nullptr;
+ }
+ break;
+ }
+ }
+ } else {
+ for (uint32_t i = 0; i < bufferCount; i++) {
+ outBufferHandles[i] = dupFromAidl(result.buffers[i]);
+ if (!outBufferHandles[i]) {
+ for (uint32_t j = 0; j < i; j++) {
+ auto buffer = const_cast<native_handle_t*>(outBufferHandles[j]);
+ native_handle_close(buffer);
+ native_handle_delete(buffer);
+ outBufferHandles[j] = nullptr;
+ }
+ }
+ }
+ }
+ }
+ *outStride = result.stride;
+ // Release all the resources held by AllocationResult (specifically any remaining FDs)
+ result = {};
+ // make sure the kernel driver sees BC_FREE_BUFFER and closes the fds now
+ hardware::IPCThreadState::self()->flushCommands();
+ return error;
+ }
+
auto ret = mAllocator->allocate(descriptor, bufferCount,
[&](const auto& tmpError, const auto& tmpStride,
const auto& tmpBuffers) {
diff --git a/libs/ui/include/ui/Gralloc4.h b/libs/ui/include/ui/Gralloc4.h
index 62f9e4a53f..6bafcd6c81 100644
--- a/libs/ui/include/ui/Gralloc4.h
+++ b/libs/ui/include/ui/Gralloc4.h
@@ -17,6 +17,7 @@
#ifndef ANDROID_UI_GRALLOC4_H
#define ANDROID_UI_GRALLOC4_H
+#include <aidl/android/hardware/graphics/allocator/IAllocator.h>
#include <android/hardware/graphics/allocator/4.0/IAllocator.h>
#include <android/hardware/graphics/common/1.1/types.h>
#include <android/hardware/graphics/mapper/4.0/IMapper.h>
@@ -204,6 +205,8 @@ public:
private:
const Gralloc4Mapper& mMapper;
sp<hardware::graphics::allocator::V4_0::IAllocator> mAllocator;
+ // Optional "4.1" allocator
+ std::shared_ptr<aidl::android::hardware::graphics::allocator::IAllocator> mAidlAllocator;
};
} // namespace android
generated by cgit v1.2.3-59-g8ed1b (git 2.39.0) at 2025-11-03 03:49:10 +0000