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-rw-r--r--include/ui/GraphicBuffer.h76
-rw-r--r--libs/ui/GraphicBuffer.cpp123
-rw-r--r--libs/vr/libbufferhub/ion_buffer.cpp15
-rw-r--r--services/vr/hardware_composer/aidl/android/dvr/parcelable_composer_layer.cpp6
-rw-r--r--services/vr/vr_window_manager/composer/impl/vr_hwc.cpp9
5 files changed, 146 insertions, 83 deletions
diff --git a/include/ui/GraphicBuffer.h b/include/ui/GraphicBuffer.h
index 040d1e7bac..33ec4bbac9 100644
--- a/include/ui/GraphicBuffer.h
+++ b/include/ui/GraphicBuffer.h
@@ -72,27 +72,66 @@ public:
USAGE_CURSOR = GRALLOC_USAGE_CURSOR,
};
+ // Create a GraphicBuffer to be unflatten'ed into or be reallocated.
GraphicBuffer();
- // creates w * h buffer
- GraphicBuffer(uint32_t inWidth, uint32_t inHeight, PixelFormat inFormat,
- uint32_t inUsage, std::string requestorName = "<Unknown>");
-
- // creates w * h buffer with a layer count using gralloc1
+ // Create a GraphicBuffer by allocating and managing a buffer internally.
+ // This function is privileged. See reallocate for details.
GraphicBuffer(uint32_t inWidth, uint32_t inHeight, PixelFormat inFormat,
uint32_t inLayerCount, uint64_t inProducerUsage,
uint64_t inConsumerUsage, std::string requestorName = "<Unknown>");
- // create a buffer from an existing handle
+ // Create a GraphicBuffer from an existing handle.
+ enum HandleWrapMethod : uint8_t {
+ // Wrap and use the handle directly. It assumes the handle has been
+ // registered and never fails. The handle must have a longer lifetime
+ // than this wrapping GraphicBuffer.
+ //
+ // This can be used when, for example, you want to wrap a handle that
+ // is already managed by another GraphicBuffer.
+ WRAP_HANDLE,
+
+ // Take ownership of the handle and use it directly. It assumes the
+ // handle has been registered and never fails.
+ //
+ // This can be used to manage an already registered handle with
+ // GraphicBuffer.
+ TAKE_HANDLE,
+
+ // Take onwership of an unregistered handle and use it directly. It
+ // can fail when the buffer does not register. There is no ownership
+ // transfer on failures.
+ //
+ // This can be used to, for example, create a GraphicBuffer from a
+ // handle returned by Parcel::readNativeHandle.
+ TAKE_UNREGISTERED_HANDLE,
+
+ // Make a clone of the handle and use the cloned handle. It can fail
+ // when cloning fails or when the buffer does not register. There is
+ // never ownership transfer.
+ //
+ // This can be used to create a GraphicBuffer from a handle that
+ // cannot be used directly, such as one from hidl_handle.
+ CLONE_HANDLE,
+ };
+ GraphicBuffer(const native_handle_t* handle, HandleWrapMethod method,
+ uint32_t width, uint32_t height,
+ PixelFormat format, uint32_t layerCount,
+ uint64_t producerUsage, uint64_t consumerUsage, uint32_t stride);
+
+ // These functions are deprecated because they do not distinguish producer
+ // and consumer usages.
+ GraphicBuffer(const native_handle_t* handle, HandleWrapMethod method,
+ uint32_t width, uint32_t height,
+ PixelFormat format, uint32_t layerCount,
+ uint32_t usage, uint32_t stride)
+ : GraphicBuffer(handle, method, width, height, format, layerCount,
+ usage, usage, stride) {}
GraphicBuffer(uint32_t inWidth, uint32_t inHeight, PixelFormat inFormat,
uint32_t inLayerCount, uint32_t inUsage, uint32_t inStride,
native_handle_t* inHandle, bool keepOwnership);
-
- // create a buffer from an existing handle using gralloc1
GraphicBuffer(uint32_t inWidth, uint32_t inHeight, PixelFormat inFormat,
- uint32_t inLayerCount, uint32_t inProducerUsage,
- uint32_t inConsumerUsage, uint32_t inStride,
- native_handle_t* inHandle, bool keepOwnership);
+ uint32_t inUsage, std::string requestorName = "<Unknown>");
// create a buffer from an existing ANativeWindowBuffer
GraphicBuffer(ANativeWindowBuffer* buffer, bool keepOwnership);
@@ -114,6 +153,9 @@ public:
mGenerationNumber = generation;
}
+ // This function is privileged. It requires access to the allocator
+ // device or service, which usually involves adding suitable selinux
+ // rules.
status_t reallocate(uint32_t inWidth, uint32_t inHeight,
PixelFormat inFormat, uint32_t inLayerCount, uint32_t inUsage);
@@ -175,9 +217,15 @@ private:
GraphicBuffer& operator = (const GraphicBuffer& rhs);
const GraphicBuffer& operator = (const GraphicBuffer& rhs) const;
- status_t initSize(uint32_t inWidth, uint32_t inHeight, PixelFormat inFormat,
- uint32_t inLayerCount, uint64_t inProducerUsage,
- uint64_t inConsumerUsage, std::string requestorName);
+ status_t initWithSize(uint32_t inWidth, uint32_t inHeight,
+ PixelFormat inFormat, uint32_t inLayerCount,
+ uint64_t inProducerUsage, uint64_t inConsumerUsage,
+ std::string requestorName);
+
+ status_t initWithHandle(const native_handle_t* handle,
+ HandleWrapMethod method, uint32_t width, uint32_t height,
+ PixelFormat format, uint32_t layerCount,
+ uint64_t producerUsage, uint64_t consumerUsage, uint32_t stride);
void free_handle();
diff --git a/libs/ui/GraphicBuffer.cpp b/libs/ui/GraphicBuffer.cpp
index 6e8473018a..4fae2337d4 100644
--- a/libs/ui/GraphicBuffer.cpp
+++ b/libs/ui/GraphicBuffer.cpp
@@ -52,73 +52,33 @@ GraphicBuffer::GraphicBuffer()
handle = NULL;
}
+// deprecated
GraphicBuffer::GraphicBuffer(uint32_t inWidth, uint32_t inHeight,
PixelFormat inFormat, uint32_t inUsage, std::string requestorName)
- : BASE(), mOwner(ownData), mBufferMapper(GraphicBufferMapper::get()),
- mInitCheck(NO_ERROR), mId(getUniqueId()), mGenerationNumber(0)
+ : GraphicBuffer(inWidth, inHeight, inFormat, 1, inUsage, inUsage,
+ requestorName)
{
- width =
- height =
- stride =
- format =
- usage = 0;
- layerCount = 0;
- handle = NULL;
- mInitCheck = initSize(inWidth, inHeight, inFormat, 1, inUsage, inUsage,
- std::move(requestorName));
}
GraphicBuffer::GraphicBuffer(uint32_t inWidth, uint32_t inHeight,
PixelFormat inFormat, uint32_t inLayerCount, uint64_t producerUsage,
uint64_t consumerUsage, std::string requestorName)
- : BASE(), mOwner(ownData), mBufferMapper(GraphicBufferMapper::get()),
- mInitCheck(NO_ERROR), mId(getUniqueId()), mGenerationNumber(0)
+ : GraphicBuffer()
{
- width =
- height =
- stride =
- format =
- usage = 0;
- layerCount = 0;
- handle = NULL;
- mInitCheck = initSize(inWidth, inHeight, inFormat, inLayerCount,
+ mInitCheck = initWithSize(inWidth, inHeight, inFormat, inLayerCount,
producerUsage, consumerUsage, std::move(requestorName));
}
+// deprecated
GraphicBuffer::GraphicBuffer(uint32_t inWidth, uint32_t inHeight,
PixelFormat inFormat, uint32_t inLayerCount, uint32_t inUsage,
uint32_t inStride, native_handle_t* inHandle, bool keepOwnership)
- : BASE(), mOwner(keepOwnership ? ownHandle : ownNone),
- mBufferMapper(GraphicBufferMapper::get()),
- mInitCheck(NO_ERROR), mId(getUniqueId()), mGenerationNumber(0)
-{
- width = static_cast<int>(inWidth);
- height = static_cast<int>(inHeight);
- stride = static_cast<int>(inStride);
- format = inFormat;
- layerCount = inLayerCount;
- usage = static_cast<int>(inUsage);
- handle = inHandle;
-}
-
-GraphicBuffer::GraphicBuffer(uint32_t inWidth, uint32_t inHeight,
- PixelFormat inFormat, uint32_t inLayerCount, uint32_t inProducerUsage,
- uint32_t inConsumerUsage, uint32_t inStride,
- native_handle_t* inHandle, bool keepOwnership)
- : BASE(), mOwner(keepOwnership ? ownHandle : ownNone),
- mBufferMapper(GraphicBufferMapper::get()),
- mInitCheck(NO_ERROR), mId(getUniqueId()), mGenerationNumber(0)
+ : GraphicBuffer(inHandle, keepOwnership ? TAKE_HANDLE : WRAP_HANDLE,
+ inWidth, inHeight, inFormat, inLayerCount, inUsage, inUsage,
+ inStride)
{
- width = static_cast<int>(inWidth);
- height = static_cast<int>(inHeight);
- stride = static_cast<int>(inStride);
- format = inFormat;
- layerCount = inLayerCount;
- usage = android_convertGralloc1To0Usage(inProducerUsage, inConsumerUsage);
- handle = inHandle;
}
-
GraphicBuffer::GraphicBuffer(ANativeWindowBuffer* buffer, bool keepOwnership)
: BASE(), mOwner(keepOwnership ? ownHandle : ownNone),
mBufferMapper(GraphicBufferMapper::get()),
@@ -134,6 +94,17 @@ GraphicBuffer::GraphicBuffer(ANativeWindowBuffer* buffer, bool keepOwnership)
handle = buffer->handle;
}
+GraphicBuffer::GraphicBuffer(const native_handle_t* handle,
+ HandleWrapMethod method, uint32_t width, uint32_t height,
+ PixelFormat format, uint32_t layerCount,
+ uint64_t producerUsage, uint64_t consumerUsage,
+ uint32_t stride)
+ : GraphicBuffer()
+{
+ mInitCheck = initWithHandle(handle, method, width, height, format,
+ layerCount, producerUsage, consumerUsage, stride);
+}
+
GraphicBuffer::~GraphicBuffer()
{
if (handle) {
@@ -192,8 +163,8 @@ status_t GraphicBuffer::reallocate(uint32_t inWidth, uint32_t inHeight,
allocator.free(handle);
handle = 0;
}
- return initSize(inWidth, inHeight, inFormat, inLayerCount, inUsage, inUsage,
- "[Reallocation]");
+ return initWithSize(inWidth, inHeight, inFormat, inLayerCount,
+ inUsage, inUsage, "[Reallocation]");
}
bool GraphicBuffer::needsReallocation(uint32_t inWidth, uint32_t inHeight,
@@ -207,7 +178,7 @@ bool GraphicBuffer::needsReallocation(uint32_t inWidth, uint32_t inHeight,
return false;
}
-status_t GraphicBuffer::initSize(uint32_t inWidth, uint32_t inHeight,
+status_t GraphicBuffer::initWithSize(uint32_t inWidth, uint32_t inHeight,
PixelFormat inFormat, uint32_t inLayerCount, uint64_t inProducerUsage,
uint64_t inConsumerUsage, std::string requestorName)
{
@@ -227,6 +198,54 @@ status_t GraphicBuffer::initSize(uint32_t inWidth, uint32_t inHeight,
return err;
}
+status_t GraphicBuffer::initWithHandle(const native_handle_t* handle,
+ HandleWrapMethod method, uint32_t width, uint32_t height,
+ PixelFormat format, uint32_t layerCount,
+ uint64_t producerUsage, uint64_t consumerUsage,
+ uint32_t stride)
+{
+ native_handle_t* clone = nullptr;
+
+ if (method == CLONE_HANDLE) {
+ clone = native_handle_clone(handle);
+ if (!clone) {
+ return NO_MEMORY;
+ }
+
+ handle = clone;
+ method = TAKE_UNREGISTERED_HANDLE;
+ }
+
+ ANativeWindowBuffer::width = static_cast<int>(width);
+ ANativeWindowBuffer::height = static_cast<int>(height);
+ ANativeWindowBuffer::stride = static_cast<int>(stride);
+ ANativeWindowBuffer::format = format;
+ ANativeWindowBuffer::usage =
+ android_convertGralloc1To0Usage(producerUsage, consumerUsage);
+
+ ANativeWindowBuffer::layerCount = layerCount;
+ ANativeWindowBuffer::handle = handle;
+
+ mOwner = (method == WRAP_HANDLE) ? ownNone : ownHandle;
+
+ if (method == TAKE_UNREGISTERED_HANDLE) {
+ status_t err = mBufferMapper.registerBuffer(this);
+ if (err != NO_ERROR) {
+ // clean up cloned handle
+ if (clone) {
+ native_handle_close(clone);
+ native_handle_delete(clone);
+ }
+
+ initWithHandle(nullptr, WRAP_HANDLE, 0, 0, 0, 0, 0, 0, 0);
+
+ return err;
+ }
+ }
+
+ return NO_ERROR;
+}
+
status_t GraphicBuffer::lock(uint32_t inUsage, void** vaddr)
{
const Rect lockBounds(width, height);
diff --git a/libs/vr/libbufferhub/ion_buffer.cpp b/libs/vr/libbufferhub/ion_buffer.cpp
index 3fb3f3c6ff..e5a56c1a4b 100644
--- a/libs/vr/libbufferhub/ion_buffer.cpp
+++ b/libs/vr/libbufferhub/ion_buffer.cpp
@@ -1,5 +1,4 @@
#include <private/dvr/ion_buffer.h>
-#include <ui/GraphicBufferMapper.h>
#include <log/log.h>
#define ATRACE_TAG ATRACE_TAG_GRAPHICS
@@ -70,10 +69,9 @@ int IonBuffer::Alloc(int width, int height, int format, int usage) {
ALOGD_IF(TRACE, "IonBuffer::Alloc: width=%d height=%d format=%d usage=%d",
width, height, format, usage);
- GraphicBufferMapper& mapper = GraphicBufferMapper::get();
buffer_ = new GraphicBuffer(width, height, format, usage);
- if (mapper.registerBuffer(buffer_.get()) != OK) {
- ALOGE("IonBuffer::Aloc: Failed to register buffer");
+ if (buffer_->initCheck() != OK) {
+ ALOGE("IonBuffer::Aloc: Failed to allocate buffer");
}
return 0;
}
@@ -96,11 +94,10 @@ int IonBuffer::Import(buffer_handle_t handle, int width, int height, int stride,
"usage=%d",
handle, width, height, stride, format, usage);
FreeHandle();
- GraphicBufferMapper& mapper = GraphicBufferMapper::get();
- buffer_ = new GraphicBuffer(width, height, format, 1, usage,
- stride, (native_handle_t*)handle, true);
- if (mapper.registerBuffer(buffer_.get()) != OK) {
- ALOGE("IonBuffer::Import: Failed to register cloned buffer");
+ buffer_ = new GraphicBuffer(handle, GraphicBuffer::TAKE_UNREGISTERED_HANDLE,
+ width, height, format, 1, usage, stride);
+ if (buffer_->initCheck() != OK) {
+ ALOGE("IonBuffer::Import: Failed to import buffer");
return -EINVAL;
}
return 0;
diff --git a/services/vr/hardware_composer/aidl/android/dvr/parcelable_composer_layer.cpp b/services/vr/hardware_composer/aidl/android/dvr/parcelable_composer_layer.cpp
index 34e2b7ec36..999d71efb3 100644
--- a/services/vr/hardware_composer/aidl/android/dvr/parcelable_composer_layer.cpp
+++ b/services/vr/hardware_composer/aidl/android/dvr/parcelable_composer_layer.cpp
@@ -34,9 +34,9 @@ sp<GraphicBuffer> GetBufferFromHandle(native_handle_t* handle) {
// capability. Otherwise assume a count of 1.
mapper.getLayerCount(handle, &layer_count);
- sp<GraphicBuffer> buffer = new GraphicBuffer(
- width, height, format, layer_count, producer_usage, consumer_usage,
- stride, handle, true);
+ sp<GraphicBuffer> buffer = new GraphicBuffer(handle,
+ GraphicBuffer::TAKE_HANDLE, width, height, format, layer_count,
+ producer_usage, consumer_usage, stride);
return buffer;
}
diff --git a/services/vr/vr_window_manager/composer/impl/vr_hwc.cpp b/services/vr/vr_window_manager/composer/impl/vr_hwc.cpp
index 3393ade01d..d142729d23 100644
--- a/services/vr/vr_window_manager/composer/impl/vr_hwc.cpp
+++ b/services/vr/vr_window_manager/composer/impl/vr_hwc.cpp
@@ -69,11 +69,10 @@ sp<GraphicBuffer> GetBufferFromHandle(const native_handle_t* handle) {
mapper.getLayerCount(handle, &layer_count);
// NOTE: Can't re-use |handle| since we don't own it.
- sp<GraphicBuffer> buffer = new GraphicBuffer(
- width, height, format, layer_count, producer_usage, consumer_usage,
- stride, native_handle_clone(handle), true);
- // Need to register the cloned buffer otherwise it can't be used later on.
- if (mapper.registerBuffer(buffer.get()) != OK) {
+ sp<GraphicBuffer> buffer = new GraphicBuffer(handle,
+ GraphicBuffer::CLONE_HANDLE, width, height, format, layer_count,
+ producer_usage, consumer_usage, stride);
+ if (buffer->initCheck() != OK) {
ALOGE("Failed to register cloned buffer");
return nullptr;
}
generated by cgit v1.2.3 (git 2.25.1) at 2025-10-17 14:06:29 +0000