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#ifndef ANDROID_DVR_BUFFER_HUB_DEFS_H_
#define ANDROID_DVR_BUFFER_HUB_DEFS_H_
#include <dvr/dvr_api.h>
#include <hardware/gralloc.h>
#include <pdx/channel_handle.h>
#include <pdx/file_handle.h>
#include <pdx/rpc/remote_method.h>
#include <pdx/rpc/serializable.h>
#include <private/dvr/native_handle_wrapper.h>
#include <ui/BufferHubDefs.h>
namespace android {
namespace dvr {
namespace BufferHubDefs {
static constexpr uint32_t kMetadataFormat = HAL_PIXEL_FORMAT_BLOB;
static constexpr uint32_t kMetadataUsage =
GRALLOC_USAGE_SW_READ_OFTEN | GRALLOC_USAGE_SW_WRITE_OFTEN;
// See more details in libs/ui/include/ui/BufferHubDefs.h
static constexpr int kMaxNumberOfClients =
android::BufferHubDefs::kMaxNumberOfClients;
static constexpr uint32_t kLowbitsMask = android::BufferHubDefs::kLowbitsMask;
static constexpr uint32_t kHighBitsMask = android::BufferHubDefs::kHighBitsMask;
static constexpr uint32_t kFirstClientBitMask =
android::BufferHubDefs::kFirstClientBitMask;
static inline bool isAnyClientGained(uint32_t state) {
return android::BufferHubDefs::isAnyClientGained(state);
}
static inline bool isClientGained(uint32_t state, uint32_t client_bit_mask) {
return android::BufferHubDefs::isClientGained(state, client_bit_mask);
}
static inline bool isAnyClientPosted(uint32_t state) {
return android::BufferHubDefs::isAnyClientPosted(state);
}
static inline bool isClientPosted(uint32_t state, uint32_t client_bit_mask) {
return android::BufferHubDefs::isClientPosted(state, client_bit_mask);
}
static inline bool isAnyClientAcquired(uint32_t state) {
return android::BufferHubDefs::isAnyClientAcquired(state);
}
static inline bool isClientAcquired(uint32_t state, uint32_t client_bit_mask) {
return android::BufferHubDefs::isClientAcquired(state, client_bit_mask);
}
static inline bool isClientReleased(uint32_t state, uint32_t client_bit_mask) {
return android::BufferHubDefs::isClientReleased(state, client_bit_mask);
}
// Returns the next available buffer client's client_state_masks.
// @params union_bits. Union of all existing clients' client_state_masks.
static inline uint32_t findNextAvailableClientStateMask(uint32_t union_bits) {
return android::BufferHubDefs::findNextAvailableClientStateMask(union_bits);
}
using MetadataHeader = android::BufferHubDefs::MetadataHeader;
static constexpr size_t kMetadataHeaderSize =
android::BufferHubDefs::kMetadataHeaderSize;
} // namespace BufferHubDefs
template <typename FileHandleType>
class BufferTraits {
public:
BufferTraits() = default;
BufferTraits(const native_handle_t* buffer_handle,
const FileHandleType& metadata_handle, int id,
uint32_t client_state_mask, uint64_t metadata_size,
uint32_t width, uint32_t height, uint32_t layer_count,
uint32_t format, uint64_t usage, uint32_t stride,
const FileHandleType& acquire_fence_fd,
const FileHandleType& release_fence_fd)
: id_(id),
client_state_mask_(client_state_mask),
metadata_size_(metadata_size),
width_(width),
height_(height),
layer_count_(layer_count),
format_(format),
usage_(usage),
stride_(stride),
buffer_handle_(buffer_handle),
metadata_handle_(metadata_handle.Borrow()),
acquire_fence_fd_(acquire_fence_fd.Borrow()),
release_fence_fd_(release_fence_fd.Borrow()) {}
BufferTraits(BufferTraits&& other) = default;
BufferTraits& operator=(BufferTraits&& other) = default;
// ID of the buffer client. All BufferHubBuffer clients derived from the same
// buffer in bufferhubd share the same buffer id.
int id() const { return id_; }
// State mask of the buffer client. Each BufferHubBuffer client backed by the
// same buffer channel has uniqued state bit among its siblings. For a
// producer buffer the bit must be kFirstClientBitMask; for a consumer the bit
// must be one of the kConsumerStateMask.
uint32_t client_state_mask() const { return client_state_mask_; }
uint64_t metadata_size() const { return metadata_size_; }
uint32_t width() { return width_; }
uint32_t height() { return height_; }
uint32_t layer_count() { return layer_count_; }
uint32_t format() { return format_; }
uint64_t usage() { return usage_; }
uint32_t stride() { return stride_; }
const NativeHandleWrapper<FileHandleType>& buffer_handle() const {
return buffer_handle_;
}
NativeHandleWrapper<FileHandleType> take_buffer_handle() {
return std::move(buffer_handle_);
}
FileHandleType take_metadata_handle() { return std::move(metadata_handle_); }
FileHandleType take_acquire_fence() { return std::move(acquire_fence_fd_); }
FileHandleType take_release_fence() { return std::move(release_fence_fd_); }
private:
// BufferHub specific traits.
int id_ = -1;
uint32_t client_state_mask_;
uint64_t metadata_size_;
// Traits for a GraphicBuffer.
uint32_t width_;
uint32_t height_;
uint32_t layer_count_;
uint32_t format_;
uint64_t usage_;
uint32_t stride_;
// Native handle for the graphic buffer.
NativeHandleWrapper<FileHandleType> buffer_handle_;
// File handle of an ashmem that holds buffer metadata.
FileHandleType metadata_handle_;
// Pamameters for shared fences.
FileHandleType acquire_fence_fd_;
FileHandleType release_fence_fd_;
PDX_SERIALIZABLE_MEMBERS(BufferTraits<FileHandleType>, id_,
client_state_mask_, metadata_size_, stride_, width_,
height_, layer_count_, format_, usage_,
buffer_handle_, metadata_handle_, acquire_fence_fd_,
release_fence_fd_);
BufferTraits(const BufferTraits&) = delete;
void operator=(const BufferTraits&) = delete;
};
} // namespace dvr
} // namespace android
#endif // ANDROID_DVR_BUFFER_HUB_DEFS_H_
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