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-rw-r--r--libshims/include/ui/GraphicBuffer.h142
-rw-r--r--libshims/include/ui/GraphicBufferAllocator.h16
-rw-r--r--libshims/include/ui/GraphicBufferMapper.h38
3 files changed, 124 insertions, 72 deletions
diff --git a/libshims/include/ui/GraphicBuffer.h b/libshims/include/ui/GraphicBuffer.h
index 7b4fac8..c195342 100644
--- a/libshims/include/ui/GraphicBuffer.h
+++ b/libshims/include/ui/GraphicBuffer.h
@@ -21,8 +21,12 @@
#include <sys/types.h>
#include <string>
+#include <utility>
+#include <vector>
+#include <android/hardware_buffer.h>
#include <ui/ANativeObjectBase.h>
+#include <ui/GraphicBufferMapper.h>
#include <ui/PixelFormat.h>
#include <ui/Rect.h>
#include <utils/Flattenable.h>
@@ -31,13 +35,17 @@
#include <nativebase/nativebase.h>
#include <hardware/gralloc.h>
-struct ANativeWindowBuffer;
namespace android {
-class DetachedBufferHandle;
+#ifndef LIBUI_IN_VNDK
+class BufferHubBuffer;
+#endif // LIBUI_IN_VNDK
+
class GraphicBufferMapper;
+using GraphicBufferDeathCallback = std::function<void(void* /*context*/, uint64_t bufferId)>;
+
// ===========================================================================
// GraphicBuffer
// ===========================================================================
@@ -76,6 +84,10 @@ public:
static sp<GraphicBuffer> from(ANativeWindowBuffer *);
+ static GraphicBuffer* fromAHardwareBuffer(AHardwareBuffer*);
+ static GraphicBuffer const* fromAHardwareBuffer(AHardwareBuffer const*);
+ AHardwareBuffer* toAHardwareBuffer();
+ AHardwareBuffer const* toAHardwareBuffer() const;
// Create a GraphicBuffer to be unflatten'ed into or be reallocated.
GraphicBuffer();
@@ -119,29 +131,27 @@ public:
// 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 usage, uint32_t stride);
+ GraphicBuffer(const native_handle_t* inHandle, HandleWrapMethod method, uint32_t inWidth,
+ uint32_t inHeight, PixelFormat inFormat, uint32_t inLayerCount, uint64_t inUsage,
+ uint32_t inStride);
// These functions are deprecated because they only take 32 bits of usage
- GraphicBuffer(const native_handle_t* handle, HandleWrapMethod method,
- uint32_t width, uint32_t height,
- PixelFormat format,
- uint32_t usage, uint32_t stride)
- : GraphicBuffer(handle, method, width, height, format, layerCount,
- static_cast<uint64_t>(usage), stride) {}
+ GraphicBuffer(const native_handle_t* inHandle, HandleWrapMethod method, uint32_t inWidth,
+ uint32_t inHeight, PixelFormat inFormat, uint32_t inLayerCount, uint32_t inUsage,
+ uint32_t inStride)
+ : GraphicBuffer(inHandle, method, inWidth, inHeight, inFormat, inLayerCount,
+ static_cast<uint64_t>(inUsage), inStride) {}
GraphicBuffer(uint32_t inWidth, uint32_t inHeight, PixelFormat inFormat,
- uint32_t inUsage, uint32_t inStride,
+ uint32_t inLayerCount, uint32_t inUsage, uint32_t inStride,
native_handle_t* inHandle, bool keepOwnership);
GraphicBuffer(uint32_t inWidth, uint32_t inHeight, PixelFormat inFormat,
- uint32_t inUsage);
- // create a buffer from an existing ANativeWindowBuffer
- GraphicBuffer(ANativeWindowBuffer* buffer, bool keepOwnership);
-
- GraphicBuffer(uint32_t inWidth, uint32_t inHeight, PixelFormat inFormat,
uint32_t inUsage, std::string requestorName = "<Unknown>");
+#ifndef LIBUI_IN_VNDK
+ // Create a GraphicBuffer from an existing BufferHubBuffer.
+ GraphicBuffer(std::unique_ptr<BufferHubBuffer> buffer);
+#endif // LIBUI_IN_VNDK
+
// return status
status_t initCheck() const;
@@ -153,6 +163,7 @@ public:
uint32_t getLayerCount() const { return static_cast<uint32_t>(layerCount); }
Rect getBounds() const { return Rect(width, height); }
uint64_t getId() const { return mId; }
+ int32_t getBufferId() const { return mBufferId; }
uint32_t getGenerationNumber() const { return mGenerationNumber; }
void setGenerationNumber(uint32_t generation) {
@@ -168,24 +179,35 @@ public:
bool needsReallocation(uint32_t inWidth, uint32_t inHeight,
PixelFormat inFormat, uint32_t inLayerCount, uint64_t inUsage);
- status_t lock(uint32_t inUsage, void** vaddr);
- status_t lock(uint32_t inUsage, const Rect& rect, void** vaddr);
+ // For the following two lock functions, if bytesPerStride or bytesPerPixel
+ // are unknown or variable, -1 will be returned
+ status_t lock(uint32_t inUsage, void** vaddr, int32_t* outBytesPerPixel = nullptr,
+ int32_t* outBytesPerStride = nullptr);
+ status_t lock(uint32_t inUsage, const Rect& rect, void** vaddr,
+ int32_t* outBytesPerPixel = nullptr, int32_t* outBytesPerStride = nullptr);
// For HAL_PIXEL_FORMAT_YCbCr_420_888
status_t lockYCbCr(uint32_t inUsage, android_ycbcr *ycbcr);
status_t lockYCbCr(uint32_t inUsage, const Rect& rect,
android_ycbcr *ycbcr);
status_t unlock();
- status_t lockAsync(uint32_t inUsage, void** vaddr, int fenceFd);
- status_t lockAsync(uint32_t inUsage, const Rect& rect, void** vaddr,
- int fenceFd);
- status_t lockAsync(uint64_t inProducerUsage, uint64_t inConsumerUsage,
- const Rect& rect, void** vaddr, int fenceFd);
+ // For the following three lockAsync functions, if bytesPerStride or bytesPerPixel
+ // are unknown or variable, -1 will be returned
+ status_t lockAsync(uint32_t inUsage, void** vaddr, int fenceFd,
+ int32_t* outBytesPerPixel = nullptr, int32_t* outBytesPerStride = nullptr);
+ status_t lockAsync(uint32_t inUsage, const Rect& rect, void** vaddr, int fenceFd,
+ int32_t* outBytesPerPixel = nullptr, int32_t* outBytesPerStride = nullptr);
+ status_t lockAsync(uint64_t inProducerUsage, uint64_t inConsumerUsage, const Rect& rect,
+ void** vaddr, int fenceFd, int32_t* outBytesPerPixel = nullptr,
+ int32_t* outBytesPerStride = nullptr);
status_t lockAsyncYCbCr(uint32_t inUsage, android_ycbcr *ycbcr,
int fenceFd);
status_t lockAsyncYCbCr(uint32_t inUsage, const Rect& rect,
android_ycbcr *ycbcr, int fenceFd);
status_t unlockAsync(int *fenceFd);
+ status_t isSupported(uint32_t inWidth, uint32_t inHeight, PixelFormat inFormat,
+ uint32_t inLayerCount, uint64_t inUsage, bool* outSupported) const;
+
ANativeWindowBuffer* getNativeBuffer() const;
// for debugging
@@ -197,10 +219,16 @@ public:
status_t flatten(void*& buffer, size_t& size, int*& fds, size_t& count) const;
status_t unflatten(void const*& buffer, size_t& size, int const*& fds, size_t& count);
- // Sets and takes DetachedBuffer. Should only be called from BufferHub.
- bool isDetachedBuffer() const;
- status_t setDetachedBufferHandle(std::unique_ptr<DetachedBufferHandle> detachedBuffer);
- std::unique_ptr<DetachedBufferHandle> takeDetachedBufferHandle();
+ GraphicBufferMapper::Version getBufferMapperVersion() const {
+ return mBufferMapper.getMapperVersion();
+ }
+
+ void addDeathCallback(GraphicBufferDeathCallback deathCallback, void* context);
+
+#ifndef LIBUI_IN_VNDK
+ // Returns whether this GraphicBuffer is backed by BufferHubBuffer.
+ bool isBufferHubBuffer() const;
+#endif // LIBUI_IN_VNDK
private:
~GraphicBuffer();
@@ -232,41 +260,61 @@ private:
PixelFormat inFormat, uint32_t inLayerCount,
uint64_t inUsage, 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 usage, uint32_t stride);
+ status_t initWithHandle(const native_handle_t* inHandle, HandleWrapMethod method,
+ uint32_t inWidth, uint32_t inHeight, PixelFormat inFormat,
+ uint32_t inLayerCount, uint64_t inUsage, uint32_t inStride);
void free_handle();
GraphicBufferMapper& mBufferMapper;
ssize_t mInitCheck;
- // If we're wrapping another buffer then this reference will make sure it
- // doesn't get freed.
- sp<ANativeWindowBuffer> mWrappedBuffer;
-
// numbers of fds/ints in native_handle_t to flatten
uint32_t mTransportNumFds;
uint32_t mTransportNumInts;
uint64_t mId;
+ // System unique buffer ID. Note that this is different from mId, which is process unique. For
+ // GraphicBuffer backed by BufferHub, the mBufferId is a system unique identifier that stays the
+ // same cross process for the same chunck of underlying memory. Also note that this only applies
+ // to GraphicBuffers that are backed by BufferHub.
+ int32_t mBufferId = -1;
+
// Stores the generation number of this buffer. If this number does not
// match the BufferQueue's internal generation number (set through
// IGBP::setGenerationNumber), attempts to attach the buffer will fail.
uint32_t mGenerationNumber;
- // Stores a BufferHub handle that can be used to re-attach this GraphicBuffer back into a
- // BufferHub producer/consumer set. In terms of GraphicBuffer's relationship with BufferHub,
- // there are three different modes:
- // 1. Legacy mode: GraphicBuffer is not backed by BufferHub and mDetachedBufferHandle must be
- // invalid.
- // 2. Detached mode: GraphicBuffer is backed by BufferHub, but not part of a producer/consumer
- // set. In this mode, mDetachedBufferHandle must be valid.
- // 3. Attached mode: GraphicBuffer is backed by BufferHub and it's part of a producer/consumer
- // set. In this mode, mDetachedBufferHandle must be invalid.
- std::unique_ptr<DetachedBufferHandle> mDetachedBufferHandle;
+ // Send a callback when a GraphicBuffer dies.
+ //
+ // This is used for BufferStateLayer caching. GraphicBuffers are refcounted per process. When
+ // A GraphicBuffer doesn't have any more sp<> in a process, it is destroyed. This causes
+ // problems when trying to implicitcly cache across process boundaries. Ideally, both sides
+ // of the cache would hold onto wp<> references. When an app dropped its sp<>, the GraphicBuffer
+ // would be destroyed. Unfortunately, when SurfaceFlinger has only a wp<> reference to the
+ // GraphicBuffer, it immediately goes out of scope in the SurfaceFlinger process. SurfaceFlinger
+ // must hold onto a sp<> to the buffer. When the GraphicBuffer goes out of scope in the app's
+ // process, the client side cache will get this callback. It erases the buffer from its cache
+ // and informs SurfaceFlinger that it should drop its strong pointer reference to the buffer.
+ std::vector<std::pair<GraphicBufferDeathCallback, void* /*mDeathCallbackContext*/>>
+ mDeathCallbacks;
+
+#ifndef LIBUI_IN_VNDK
+ // Flatten this GraphicBuffer object if backed by BufferHubBuffer.
+ status_t flattenBufferHubBuffer(void*& buffer, size_t& size) const;
+
+ // Unflatten into BufferHubBuffer backed GraphicBuffer.
+ // Unflatten will fail if the original GraphicBuffer object is destructed. For instance, a
+ // GraphicBuffer backed by BufferHubBuffer_1 flatten in process/thread A, transport the token
+ // to process/thread B through a socket, BufferHubBuffer_1 dies and bufferhub invalidated the
+ // token. Race condition occurs between the invalidation of the token in bufferhub process and
+ // process/thread B trying to unflatten and import the buffer with that token.
+ status_t unflattenBufferHubBuffer(void const*& buffer, size_t& size);
+
+ // Stores a BufferHubBuffer that handles buffer signaling, identification.
+ std::unique_ptr<BufferHubBuffer> mBufferHubBuffer;
+#endif // LIBUI_IN_VNDK
};
}; // namespace android
diff --git a/libshims/include/ui/GraphicBufferAllocator.h b/libshims/include/ui/GraphicBufferAllocator.h
index 546fb4b..25d4512 100644
--- a/libshims/include/ui/GraphicBufferAllocator.h
+++ b/libshims/include/ui/GraphicBufferAllocator.h
@@ -32,16 +32,10 @@
#include <utils/Mutex.h>
#include <utils/Singleton.h>
-#include <hardware/gralloc.h>
-
namespace android {
-namespace Gralloc2 {
-class Allocator;
-}
-
+class GrallocAllocator;
class GraphicBufferMapper;
-class String8;
class GraphicBufferAllocator : public Singleton<GraphicBufferAllocator>
{
@@ -55,7 +49,9 @@ public:
status_t free(buffer_handle_t handle);
- void dump(String8& res) const;
+ size_t getTotalSize() const;
+
+ void dump(std::string& res) const;
static void dumpToSystemLog();
private:
@@ -77,8 +73,8 @@ private:
GraphicBufferAllocator();
~GraphicBufferAllocator();
- alloc_device_t *mAllocDev;
- const std::unique_ptr<const Gralloc2::Allocator> mAllocator;
+ GraphicBufferMapper& mMapper;
+ std::unique_ptr<const GrallocAllocator> mAllocator;
};
// ---------------------------------------------------------------------------
diff --git a/libshims/include/ui/GraphicBufferMapper.h b/libshims/include/ui/GraphicBufferMapper.h
index 7cf003d..2461454 100644
--- a/libshims/include/ui/GraphicBufferMapper.h
+++ b/libshims/include/ui/GraphicBufferMapper.h
@@ -35,15 +35,16 @@ namespace android {
// ---------------------------------------------------------------------------
-namespace Gralloc2 {
-class Mapper;
-}
-
+class GrallocMapper;
class Rect;
class GraphicBufferMapper : public Singleton<GraphicBufferMapper>
{
public:
+ enum Version {
+ GRALLOC_2,
+ GRALLOC_3,
+ };
static void preloadHal();
static inline GraphicBufferMapper& get() { return getInstance(); }
@@ -59,20 +60,21 @@ public:
void getTransportSize(buffer_handle_t handle,
uint32_t* outTransportNumFds, uint32_t* outTransportNumInts);
- status_t lock(buffer_handle_t handle,
- uint32_t usage, const Rect& bounds, void** vaddr);
+ status_t lock(buffer_handle_t handle, uint32_t usage, const Rect& bounds, void** vaddr,
+ int32_t* outBytesPerPixel = nullptr, int32_t* outBytesPerStride = nullptr);
status_t lockYCbCr(buffer_handle_t handle,
uint32_t usage, const Rect& bounds, android_ycbcr *ycbcr);
status_t unlock(buffer_handle_t handle);
- status_t lockAsync(buffer_handle_t handle,
- uint32_t usage, const Rect& bounds, void** vaddr, int fenceFd);
+ status_t lockAsync(buffer_handle_t handle, uint32_t usage, const Rect& bounds, void** vaddr,
+ int fenceFd, int32_t* outBytesPerPixel = nullptr,
+ int32_t* outBytesPerStride = nullptr);
- status_t lockAsync(buffer_handle_t handle,
- uint64_t producerUsage, uint64_t consumerUsage, const Rect& bounds,
- void** vaddr, int fenceFd);
+ status_t lockAsync(buffer_handle_t handle, uint64_t producerUsage, uint64_t consumerUsage,
+ const Rect& bounds, void** vaddr, int fenceFd,
+ int32_t* outBytesPerPixel = nullptr, int32_t* outBytesPerStride = nullptr);
status_t lockAsyncYCbCr(buffer_handle_t handle,
uint32_t usage, const Rect& bounds, android_ycbcr *ycbcr,
@@ -80,17 +82,23 @@ public:
status_t unlockAsync(buffer_handle_t handle, int *fenceFd);
- const Gralloc2::Mapper& getGrallocMapper() const
- {
- return *mMapper;
+ status_t isSupported(uint32_t width, uint32_t height, android::PixelFormat format,
+ uint32_t layerCount, uint64_t usage, bool* outSupported);
+
+ const GrallocMapper& getGrallocMapper() const {
+ return reinterpret_cast<const GrallocMapper&>(*mMapper);
}
+ Version getMapperVersion() const { return mMapperVersion; }
+
private:
friend class Singleton<GraphicBufferMapper>;
GraphicBufferMapper();
- const std::unique_ptr<const Gralloc2::Mapper> mMapper;
+ std::unique_ptr<const GrallocMapper> mMapper;
+
+ Version mMapperVersion;
};
// ---------------------------------------------------------------------------
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-26 15:08:52 +0000