Camera: add bufferId field to StreamBuffer
This gives each buffer a unique identifier and allow camera server
to only send one unique to HAL process once.
Bug: 30985004
Change-Id: I6aff498c5667dd71fd70b3881fd60b0ecc366e0a
diff --git a/camera/device/3.2/default/CameraDeviceSession.h b/camera/device/3.2/default/CameraDeviceSession.h
index 498617e..ca9d24d 100644
--- a/camera/device/3.2/default/CameraDeviceSession.h
+++ b/camera/device/3.2/default/CameraDeviceSession.h
@@ -100,44 +100,12 @@
// (streamID, frameNumber) -> inflight buffer cache
std::map<std::pair<int, uint32_t>, camera3_stream_buffer_t> mInflightBuffers;
- struct BufferHasher {
- size_t operator()(const buffer_handle_t& buf) const {
- if (buf == nullptr)
- return 0;
-
- size_t result = 1;
- result = 31 * result + buf->numFds;
- result = 31 * result + buf->numInts;
- int length = buf->numFds + buf->numInts;
- for (int i = 0; i < length; i++) {
- result = 31 * result + buf->data[i];
- }
- return result;
- }
- };
-
- struct BufferComparator {
- bool operator()(const buffer_handle_t& buf1, const buffer_handle_t& buf2) const {
- if (buf1->numFds == buf2->numFds && buf1->numInts == buf2->numInts) {
- int length = buf1->numFds + buf1->numInts;
- for (int i = 0; i < length; i++) {
- if (buf1->data[i] != buf2->data[i]) {
- return false;
- }
- }
- return true;
- }
- return false;
- }
- };
-
// buffers currently ciculating between HAL and camera service
- // key: buffer_handle_t sent via HIDL interface
+ // key: bufferId sent via HIDL interface
// value: imported buffer_handle_t
// Buffer will be imported during process_capture_request and will be freed
// when the its stream is deleted or camera device session is closed
- typedef std::unordered_map<buffer_handle_t, buffer_handle_t,
- BufferHasher, BufferComparator> CirculatingBuffers;
+ typedef std::unordered_map<uint64_t, buffer_handle_t> CirculatingBuffers;
// Stream ID -> circulating buffers map
std::map<int, CirculatingBuffers> mCirculatingBuffers;