Files
EqualizerAPO/parser/RegistryFunctions.cpp
T
jthedering 90ee2b0aa9 Version 0.9
Added: Filter type "IIR", which allows to specify a user-defined IIR filter of arbitrary order with custom coefficients.
Improved: For playback devices, the APO is now installed both as GFX (post-mix) and LFX (pre-mix) APO. Normally the filtering happens in GFX, but the command "Stage" allows to select LFX to apply effects based on the number of input channels.
Added: Expression language. The commands "If", "ElseIf", "Else", "EndIf", "Eval" and inline expressions allow to change the filter behaviour based on runtime conditions.
Added: Command "Copy", which copies audio data between channels.
Added: Command "Delay", which delays the audio on the currently selected channels.
Improved: Configuration files are now locked exclusively for writing while reading them.
Improved: There is now a transition (10 ms) from old to new configuration after loading.
Improved: Substantial internal restructuring to improve extensibility and maintainability. Filtering commands now work exactly in the order they were specified.
Fixed: When the microphone input was in stereo but the application requested a mono stream, the audio was heavily distorted.
Fixed: The sine sweep generated by the Benchmark application had floating-point precision issues leading to severe artifacts when certain filters were applied.
2014-08-10 18:35:59 +00:00

106 lines
2.9 KiB
C++

/*
This file is part of EqualizerAPO, a system-wide equalizer.
Copyright (C) 2014 Jonas Thedering
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 2 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, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "RegistryFunctions.h"
#include "../helpers/RegistryHelper.h"
#include "../FilterEngine.h"
using namespace std;
using namespace mup;
ReadRegStringFunction::ReadRegStringFunction(FilterEngine* engine)
:ICallback(cmFUNC, L"readRegString", 2)
{
this->engine = engine;
}
void ReadRegStringFunction::Eval(ptr_val_type& ret, const ptr_val_type *arg, int argc)
{
if(!arg[0]->IsString())
throw ParserError(ErrorContext(ecTYPE_CONFLICT_FUN, -1, GetIdent(), arg[0]->GetType(), 's', 1));
if(!arg[1]->IsString())
throw ParserError(ErrorContext(ecTYPE_CONFLICT_FUN, -1, GetIdent(), arg[1]->GetType(), 's', 2));
wstring key = arg[0]->GetString();
wstring valuename = arg[1]->GetString();
try
{
wstring value = RegistryHelper::readValue(key, valuename);
*ret = value;
engine->watchRegistryKey(key);
}
catch(RegistryException e)
{
throw ParserError(e.getMessage());
}
}
const char_type* ReadRegStringFunction::GetDesc() const
{
return L"readRegString - read a string value from the registry";
}
IToken* ReadRegStringFunction::Clone() const
{
return new ReadRegStringFunction(*this);
}
ReadRegDWORDFunction::ReadRegDWORDFunction(FilterEngine* engine)
:ICallback(cmFUNC, L"readRegDWORD", 2)
{
this->engine = engine;
}
void ReadRegDWORDFunction::Eval(ptr_val_type& ret, const ptr_val_type *arg, int argc)
{
if(!arg[0]->IsString())
throw ParserError(ErrorContext(ecTYPE_CONFLICT_FUN, -1, GetIdent(), arg[0]->GetType(), 's', 1));
if(!arg[1]->IsString())
throw ParserError(ErrorContext(ecTYPE_CONFLICT_FUN, -1, GetIdent(), arg[1]->GetType(), 's', 2));
wstring key = arg[0]->GetString();
wstring valuename = arg[1]->GetString();
try
{
unsigned long value = RegistryHelper::readDWORDValue(key, valuename);
*ret = (long)value;
engine->watchRegistryKey(key);
}
catch(RegistryException e)
{
throw ParserError(e.getMessage());
}
}
const char_type* ReadRegDWORDFunction::GetDesc() const
{
return L"readRegDWORD - read a DWORD value from the registry";
}
IToken* ReadRegDWORDFunction::Clone() const
{
return new ReadRegDWORDFunction(*this);
}