Merge "Resurrect the pose tool." (98a81e6d) · Commits · e / os / android_frameworks_native

libs/vr/libdisplay/include/private/dvr/shared_buffer_helpers.h

+7 −2

Original line number	Diff line number	Diff line
		@@ -103,9 +103,14 @@ class CPUMappedBroadcastRing : public CPUMappedBuffer {
		// Try obtaining the ring. If the named buffer has not been created yet, it
		// will return nullptr.
		RingType* Ring() {
		// No ring created yet?
		if (ring_ == nullptr) {
		// Not mapped the memory yet?
		if (IsMapped() == false) {
		TryMapping();
		}

		// If have the memory mapped, allocate the ring.
		if (IsMapped()) {
		switch (usage_mode_) {
		case CPUUsageMode::READ_OFTEN:

+20 −7

Original line number	Diff line number	Diff line
		@@ -22,6 +22,11 @@ using android::pdx::Transaction;

		namespace android {
		namespace dvr {
		namespace {

		typedef CPUMappedBroadcastRing<DvrPoseRing> SensorPoseRing;

		} // namespace

		// PoseClient is a remote interface to the pose service in sensord.
		class PoseClient : public pdx::ClientBase<PoseClient> {
		@@ -36,16 +41,21 @@ class PoseClient : public pdx::ClientBase<PoseClient> {
		// Polls the pose service for the current state and stores it in *state.
		// Returns zero on success, a negative error code otherwise.
		int Poll(DvrPose* state) {
		const auto vsync_buffer = GetVsyncBuffer();
		if (vsync_buffer) {
		// Allocate the helper class to access the sensor pose buffer.
		if (sensor_pose_buffer_ == nullptr) {
		sensor_pose_buffer_ = std::make_unique<SensorPoseRing>(
		DvrGlobalBuffers::kSensorPoseBuffer, CPUUsageMode::READ_RARELY);
		}

		if (state) {
		// Fill the state
		*state = vsync_buffer->current_pose;
		if (sensor_pose_buffer_->GetNewest(state)) {
		return 0;
		} else {
		return -EAGAIN;
		}
		return -EINVAL;
		}

		return -EAGAIN;
		return -EINVAL;
		}

		int GetPose(uint32_t vsync_count, DvrPoseAsync* out_pose) {
		@@ -235,6 +245,9 @@ class PoseClient : public pdx::ClientBase<PoseClient> {
		// The vsync pose buffer if already mapped.
		std::unique_ptr<CPUMappedBuffer> vsync_pose_buffer_;

		// The direct sensor pose buffer.
		std::unique_ptr<SensorPoseRing> sensor_pose_buffer_;

		const DvrVsyncPoseBuffer* mapped_vsync_pose_buffer_ = nullptr;

		struct ControllerClientState {