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yabridge/src/common/logging/vst2.h
T
2020-12-07 18:28:17 +01:00

91 lines
3.1 KiB
C++

// yabridge: a Wine VST bridge
// Copyright (C) 2020 Robbert van der Helm
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <https://www.gnu.org/licenses/>.
#pragma once
#include "../serialization/vst2.h"
#include "common.h"
/**
* Convert an event opcode to a human readable string for debugging purposes.
* See `src/include/vestige/aeffectx.h` for a complete list of these opcodes.
*
* @param is_dispatch Whether to use opcodes for the `dispatch` function. Will
* use the names from the host callback function if set to false.
* @param opcode The opcode of the event.
*
* @return Either the name from `aeffectx.h`, or a nullopt if it was not listed
* there.
*/
std::optional<std::string> opcode_to_string(bool is_dispatch, int opcode);
/**
* Wraps around `Logger` to provide VST2 specific logging functionality for
* debugging plugins. This way we can have all the complex initialisation be
* performed in one place.
*/
class Vst2Logger {
public:
Vst2Logger(Logger& generic_logger);
/**
* @see Logger::log
*/
inline void log(const std::string& message) { logger.log(message); }
/**
* @see Logger::log_trace
*/
inline void log_trace(const std::string& message) {
logger.log_trace(message);
}
// The following functions are for logging specific events, they are only
// enabled for verbosity levels higher than 1 (i.e. `Verbosity::events`)
void log_get_parameter(int index);
void log_get_parameter_response(float vlaue);
void log_set_parameter(int index, float value);
void log_set_parameter_response();
// If `is_dispatch` is `true`, then use opcode names from the plugin's
// dispatch function. Otherwise use names for the host callback function
// opcodes.
void log_event(bool is_dispatch,
int opcode,
int index,
intptr_t value,
const EventPayload& payload,
float option,
const std::optional<EventPayload>& value_payload);
void log_event_response(
bool is_dispatch,
int opcode,
intptr_t return_value,
const EventResultPayload& payload,
const std::optional<EventResultPayload>& value_payload);
/**
* The underlying logger instance we're wrapping.
*/
Logger& logger;
private:
/**
* Determine whether an event should be filtered based on the current
* verbosity level.
*/
bool should_filter_event(bool is_dispatch, int opcode) const;
};