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Port TFruityPlug->ProcessParam (#70)
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- refactor
- add trait FromRawPtr
- rename DispatcherResult to AsRawPtr
- add ValuePtr
- make intptr_t private
- update example
- add null terminator to Name in GetName
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@ales-tsurko
ales-tsurko authored Apr 23, 2020
1 parent 8fe2f4c commit 33f08af
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Showing 7 changed files with 331 additions and 223 deletions.
2 changes: 2 additions & 0 deletions _clang-format
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Original file line number Diff line number Diff line change
@@ -0,0 +1,2 @@
BasedOnStyle: LLVM
IndentWidth: 4
19 changes: 17 additions & 2 deletions examples/simple.rs
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Expand Up @@ -12,7 +12,9 @@ use simplelog::{ConfigBuilder, WriteLogger};

use fpsdk::host::{Event, GetName, Host, HostMessage};
use fpsdk::plugin::{Plugin, PluginTag};
use fpsdk::{create_plugin, DispatcherResult, Info, InfoBuilder};
use fpsdk::{
create_plugin, AsRawPtr, Info, InfoBuilder, ProcessParamFlags, ValuePtr,
};

static ONCE: Once = Once::new();
const LOG_PATH: &str = "simple.log";
Expand Down Expand Up @@ -55,7 +57,7 @@ impl Plugin for Test {
self.tag
}

fn on_message(&mut self, message: HostMessage) -> Box<dyn DispatcherResult> {
fn on_message(&mut self, message: HostMessage) -> Box<dyn AsRawPtr> {
info!("{} get message from host: {:?}", self.tag, message);

Box::new(0)
Expand All @@ -77,6 +79,19 @@ impl Plugin for Test {
fn tick(&mut self) {
trace!("{} receive new tick", self.tag);
}

fn process_param(
&mut self,
index: usize,
value: ValuePtr,
flags: ProcessParamFlags,
) -> Box<dyn AsRawPtr> {
info!(
"{} process param: index {}, value {}, flags {:?}",
self.tag, index, value.get::<i32>(), flags
);
Box::new(0)
}
}

fn init_log() {
Expand Down
202 changes: 89 additions & 113 deletions src/cxx/wrapper.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -3,171 +3,147 @@
#include <cstring>

char *init_str_from_rust(rust::String &value) {
char *res = new char[value.size()];
strcpy(res, value.data());
res[value.size()] = 0x0000;
char *res = new char[value.size()];
strcpy(res, value.data());
res[value.size()] = 0x0000;

return res;
return res;
}

TFruityPlug &create_plug_instance_c(TFruityPlugHost &Host, int Tag,
rust::Box<PluginAdapter> adapter) {
Info info = plugin_info(*adapter);
Info info = plugin_info(*adapter);

char *lname = init_str_from_rust(info.long_name);
char *sname = init_str_from_rust(info.short_name);
char *lname = init_str_from_rust(info.long_name);
char *sname = init_str_from_rust(info.short_name);

PFruityPlugInfo c_info = new TFruityPlugInfo{(int)info.sdk_version,
lname,
sname,
(int)info.flags,
(int)info.num_params,
(int)info.def_poly,
(int)info.num_out_ctrls,
(int)info.num_out_voices};
PFruityPlugInfo c_info = new TFruityPlugInfo{(int)info.sdk_version,
lname,
sname,
(int)info.flags,
(int)info.num_params,
(int)info.def_poly,
(int)info.num_out_ctrls,
(int)info.num_out_voices};

PluginWrapper *wrapper =
new PluginWrapper(&Host, Tag, adapter.into_raw(), c_info);
PluginWrapper *wrapper =
new PluginWrapper(&Host, Tag, adapter.into_raw(), c_info);

return *((TFruityPlug *)wrapper);
return *((TFruityPlug *)wrapper);
}

PluginWrapper::PluginWrapper(TFruityPlugHost *Host, int Tag,
PluginAdapter *adap, PFruityPlugInfo info) {
Info = info;
HostTag = Tag;
EditorHandle = 0;
_host = Host;
_editor = nullptr;
adapter = adap;
Info = info;
HostTag = Tag;
EditorHandle = 0;
_host = Host;
_editor = nullptr;
adapter = adap;

// parameter initialze
_gain = 0.25;
_params[0] = (1 << 16);
// parameter initialze
_gain = 0.25;
_params[0] = (1 << 16);
}

PluginWrapper::~PluginWrapper() {
delete _editor;
delete Info->LongName;
delete Info->ShortName;
free(Info);
free(adapter);
delete _editor;
delete Info->LongName;
delete Info->ShortName;
free(Info);
free(adapter);
}

void _stdcall PluginWrapper::SaveRestoreState(IStream *Stream, BOOL Save) {
if (Save) {
// save paremeters
unsigned long length = 0;
Stream->Write(_params, sizeof(_params), &length);
} else {
// load paremeters
unsigned long length = 0;
Stream->Read(_params, sizeof(_params), &length);
for (int ii = 0; ii < Info->NumParams; ii++) {
if (ii == 0) {
_gain = static_cast<float>(_params[ii]) / (1 << 16);
}

// if( _editor != nullptr )
// {
// // send message to editor
// _editor->setParameter(ii, static_cast<float>(_params[ii]));
// }
if (Save) {
// save paremeters
unsigned long length = 0;
Stream->Write(_params, sizeof(_params), &length);
} else {
// load paremeters
unsigned long length = 0;
Stream->Read(_params, sizeof(_params), &length);
for (int ii = 0; ii < Info->NumParams; ii++) {
if (ii == 0) {
_gain = static_cast<float>(_params[ii]) / (1 << 16);
}

// if( _editor != nullptr )
// {
// // send message to editor
// _editor->setParameter(ii, static_cast<float>(_params[ii]));
// }
}
}
}
}

intptr_t _stdcall PluginWrapper::Dispatcher(intptr_t ID, intptr_t Index,
intptr_t Value) {
Message message = {ID, Index, Value};
Message message = {ID, Index, Value};

return plugin_dispatcher(adapter, message);
return plugin_dispatcher(adapter, message);
}

void _stdcall PluginWrapper::GetName(int Section, int Index, int Value,
char *Name) {
Message message = {
(intptr_t)Section,
(intptr_t)Index,
(intptr_t)Value,
};
Message message = {
(intptr_t)Section,
(intptr_t)Index,
(intptr_t)Value,
};

strcpy(Name, plugin_name_of(*adapter, message).data());
rust::String r_name = plugin_name_of(*adapter, message);
strcpy(Name, r_name.data());
Name[r_name.size()] = 0x0000;
}

int _stdcall PluginWrapper::ProcessEvent(int EventID, int EventValue,
int Flags) {
Message message = {
(intptr_t)EventID,
(intptr_t)EventValue,
(intptr_t)Flags,
};
Message message = {
(intptr_t)EventID,
(intptr_t)EventValue,
(intptr_t)Flags,
};

plugin_process_event(adapter, message);
plugin_process_event(adapter, message);

return 0;
return 0;
}

int _stdcall PluginWrapper::ProcessParam(int Index, int Value, int RECFlags) {
int ret = 0;
if (Index < Info->NumParams) {
if (RECFlags & REC_UpdateValue) {
_params[Index] = Value;

char hinttext[256] = {0};
if (Index == 0) {
_gain = static_cast<float>(Value) / (1 << 16);
if (_gain < 1.0e-8) {
// convert to dB
// sprintf_s(hinttext, "Gain: -oo dB");
} else {
// convert to dB
// sprintf_s(hinttext, "Gain: %.3f dB", 20.0 * log10(_gain));
}
}

// display text to hint bar
_host->OnHint(Index, hinttext);

if (RECFlags & REC_UpdateControl) {
// send message to editor
// _editor->setParameter(Index, static_cast<float>(Value));
} else {
// send message to host
_host->OnParamChanged(this->HostTag, Index, Value);
}
} else if (RECFlags & REC_GetValue) {
// get parameter
ret = _params[Index];
}
}
return ret;
Message message = {
(intptr_t)Index,
(intptr_t)Value,
(intptr_t)RECFlags,
};

return plugin_process_param(adapter, message);
}

//----------------
// idle
//----------------
void _stdcall PluginWrapper::Idle_Public() {
// if (_editor) _editor->doIdleStuff();
// if (_editor) _editor->doIdleStuff();
}

//----------------
// effect
//----------------
void _stdcall PluginWrapper::Eff_Render(PWAV32FS SourceBuffer,
PWAV32FS DestBuffer, int Length) {
float gain = _gain;
for (int ii = 0; ii < Length; ii++) {
(*DestBuffer)[ii][0] = (*SourceBuffer)[ii][0] * gain;
(*DestBuffer)[ii][1] = (*SourceBuffer)[ii][1] * gain;
}
float gain = _gain;
for (int ii = 0; ii < Length; ii++) {
(*DestBuffer)[ii][0] = (*SourceBuffer)[ii][0] * gain;
(*DestBuffer)[ii][1] = (*SourceBuffer)[ii][1] * gain;
}
}

void _stdcall PluginWrapper::Gen_Render(PWAV32FS DestBuffer, int &Length) {}

TVoiceHandle _stdcall PluginWrapper::TriggerVoice(PVoiceParams VoiceParams,
intptr_t SetTag) {
return TVoiceHandle();
return TVoiceHandle();
}

void _stdcall PluginWrapper::Voice_Release(TVoiceHandle Handle) {}
Expand All @@ -176,12 +152,12 @@ void _stdcall PluginWrapper::Voice_Kill(TVoiceHandle Handle) {}

int _stdcall PluginWrapper::Voice_ProcessEvent(TVoiceHandle Handle, int EventID,
int EventValue, int Flags) {
return 0;
return 0;
}

int _stdcall PluginWrapper::Voice_Render(TVoiceHandle Handle,
PWAV32FS DestBuffer, int &Length) {
return 0;
return 0;
}

void _stdcall PluginWrapper::NewTick() { plugin_tick(adapter); }
Expand All @@ -196,15 +172,15 @@ int _stdcall PluginWrapper::OutputVoice_ProcessEvent(TOutVoiceHandle Handle,
int EventID,
int EventValue,
int Flags) {
return 0;
return 0;
}

void _stdcall PluginWrapper::OutputVoice_Kill(TVoiceHandle Handle) {}

TimeSignature time_sig_from_raw(intptr_t raw_time_sig) {
PTimeSigInfo time_sig = (TTimeSigInfo *)raw_time_sig;
PTimeSigInfo time_sig = (TTimeSigInfo *)raw_time_sig;

return TimeSignature{(uint32_t)time_sig->StepsPerBar,
(uint32_t)time_sig->StepsPerBeat,
(uint32_t)time_sig->PPQ};
return TimeSignature{(uint32_t)time_sig->StepsPerBar,
(uint32_t)time_sig->StepsPerBeat,
(uint32_t)time_sig->PPQ};
}
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