jthedering
90ee2b0aa9
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.
112 lines
2.6 KiB
C++
112 lines
2.6 KiB
C++
/*
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This file is part of EqualizerAPO, a system-wide equalizer.
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Copyright (C) 2013 Jonas Thedering
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#define WIN32_LEAN_AND_MEAN
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#include <windows.h>
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#ifdef _DEBUG
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#include <stdlib.h>
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#include <crtdbg.h>
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#endif
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#ifdef USE_WINDDK
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// disable the declarations to use our own (see below)
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#define AERT_Allocate _AERT_Allocate_disabled
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#define AERT_Free _AERT_Free_disabled
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#include <BaseAudioProcessingObject.h>
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#undef AERT_Allocate
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#undef AERT_Free
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#endif
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#include "LogHelper.h"
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#include "MemoryHelper.h"
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#ifdef USE_WINDDK
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// someone forgot to add the __stdcall/WINAPI modifier to BaseAudioProcessingObject.h, so we can't use the existing declarations
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extern "C"
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{
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HRESULT __stdcall AERT_Allocate(size_t size, void **pMemory);
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HRESULT __stdcall AERT_Free(void *pMemory);
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}
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#endif
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void* MemoryHelper::alloc(size_t size)
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{
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void* memory;
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bool alternative = false;
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size += 16;
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#ifdef USE_WINDDK
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HRESULT hr = AERT_Allocate(size, &memory);
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if(FAILED(hr))
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{
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size += 16;
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memory = malloc(size);
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alternative = true;
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}
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#else
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#ifdef _DEBUG
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memory = _malloc_dbg(size,_NORMAL_BLOCK, __FILE__, __LINE__);
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#else
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memory = malloc(size);
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#endif
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#endif
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if(memory == NULL)
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{
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LogFStatic(L"Allocation of %d bytes failed.", size);
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return NULL;
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}
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size_t offset = 16 - ((size_t)memory) % 16;
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if(alternative)
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offset += 16;
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void* ptr = ((char*)memory) + offset;
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((char*)ptr)[-1] = (char)offset;
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return ptr;
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}
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void MemoryHelper::free(void* ptr)
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{
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bool alternative = false;
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char offset = ((char*)ptr)[-1];
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if(offset > 16)
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alternative = true;
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void* memory = ((char*)ptr) - offset;
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#ifdef USE_WINDDK
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if(alternative)
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{
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::free(memory);
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}
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else
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{
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HRESULT hr = AERT_Free(memory);
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if(FAILED(hr))
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{
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LogFStatic(L"Memory release failed. Error code %X", hr);
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}
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}
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#else
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#ifdef _DEBUG
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_free_dbg(memory,_NORMAL_BLOCK);
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#else
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::free(memory);
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#endif
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#endif
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} |