syntax = "proto2";

package android.automotive.computepipe.proto;

enum RemoteGraphStatusCode {
    SUCCESS = 0;
    INTERNAL_ERROR = 1;
    INVALID_ARGUMENT = 2;
    ILLEGAL_STATE = 3;
    NO_MEMORY = 4;
    FATAL_ERROR = 5;
}

message StatusResponse {
    optional RemoteGraphStatusCode code = 1;
    optional string message = 2;
}

message GraphOptionsRequest {}

message GraphOptionsResponse {
    optional string serialized_options = 1;
}

message SetGraphConfigRequest {
    optional string serialized_config = 1;
}

message OutputStreamMetadata {
    optional int32 stream_id = 1;
}

message ObserveOutputStreamRequest {
    optional int32 stream_id = 1;
}

enum PixelFormat {
    RGB = 0;
    RGBA = 1;
    GRAY = 2;
}

message PixelData {
    optional int32 width = 1;
    optional int32 height = 2;
    optional int32 step = 3;
    optional PixelFormat format = 4;
    optional bytes data = 5;
}

message OutputStreamResponse {
    oneof data {
        string semantic_data = 1;
        PixelData pixel_data = 2;
    }
    optional int32 stream_id = 3;
    optional int64 timestamp_us = 4;
}

message SetDebugRequest {
    optional bool enabled = 1;
}

message ProfilingDataRequest {}

message ProfilingDataResponse {
    optional string data = 1;
}

message StartGraphExecutionRequest {}

message StopGraphExecutionRequest {
    optional bool stop_immediate = 1;
}

message StartGraphProfilingRequest {}

message StopGraphProfilingRequest {}

message ResetGraphRequest {}

service GrpcGraphService {
    rpc GetGraphOptions(GraphOptionsRequest) returns (GraphOptionsResponse) {}

    rpc SetGraphConfig(SetGraphConfigRequest) returns (StatusResponse) {}

    rpc SetDebugOption(SetDebugRequest) returns (StatusResponse) {}

    rpc StartGraphExecution(StartGraphExecutionRequest) returns (StatusResponse) {}

    rpc ObserveOutputStream(ObserveOutputStreamRequest) returns (stream OutputStreamResponse) {}

    rpc StopGraphExecution(StopGraphExecutionRequest) returns (StatusResponse) {}

    rpc ResetGraph(ResetGraphRequest) returns (StatusResponse) {}

    rpc StartGraphProfiling(StartGraphProfilingRequest) returns (StatusResponse) {}

    rpc StopGraphProfiling(StopGraphProfilingRequest) returns (StatusResponse) {}

    rpc GetProfilingData(ProfilingDataRequest) returns (ProfilingDataResponse) {}
}