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https://github.com/WinampDesktop/winamp.git
synced 2024-12-18 18:36:00 +01:00
483 lines
13 KiB
C++
483 lines
13 KiB
C++
/*
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* MPTHacks.cpp
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* ------------
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* Purpose: Find out if MOD/XM/S3M/IT modules have MPT-specific hacks and fix them.
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* Notes : This is not finished yet. Still need to handle:
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* - Out-of-range sample pre-amp settings
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* - Comments in XM files
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* - Many auto-fix actions (so that the auto-fix mode can actually be used at some point!)
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* Maybe there should be two options if hacks are found: Convert the song to MPTM or remove hacks.
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* Authors: OpenMPT Devs
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* The OpenMPT source code is released under the BSD license. Read LICENSE for more details.
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*/
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#include "stdafx.h"
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#include "Moddoc.h"
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#include "../soundlib/modsmp_ctrl.h"
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#include "../soundlib/mod_specifications.h"
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OPENMPT_NAMESPACE_BEGIN
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// Find and fix envelopes where two nodes are on the same tick.
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bool FindIncompatibleEnvelopes(InstrumentEnvelope &env, bool autofix)
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{
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bool found = false;
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for(uint32 i = 1; i < env.size(); i++)
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{
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if(env[i].tick <= env[i - 1].tick) // "<=" so we can fix envelopes "on the fly"
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{
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found = true;
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if(autofix)
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{
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env[i].tick = env[i - 1].tick + 1;
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}
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}
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}
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return found;
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}
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// Go through the module to find out if it contains any hacks introduced by (Open)MPT
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bool CModDoc::HasMPTHacks(const bool autofix)
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{
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const CModSpecifications *originalSpecs = &m_SndFile.GetModSpecifications();
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// retrieve original (not hacked) specs.
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MODTYPE modType = m_SndFile.GetBestSaveFormat();
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switch(modType)
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{
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case MOD_TYPE_MOD:
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originalSpecs = &ModSpecs::mod;
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break;
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case MOD_TYPE_XM:
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originalSpecs = &ModSpecs::xm;
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break;
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case MOD_TYPE_S3M:
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originalSpecs = &ModSpecs::s3m;
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break;
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case MOD_TYPE_IT:
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originalSpecs = &ModSpecs::it;
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break;
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}
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bool foundHacks = false, foundHere = false;
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ClearLog();
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// Check for plugins
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#ifndef NO_PLUGINS
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foundHere = false;
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for(const auto &plug : m_SndFile.m_MixPlugins)
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{
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if(plug.IsValidPlugin())
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{
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foundHere = foundHacks = true;
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break;
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}
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// REQUIRES AUTOFIX
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}
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if(foundHere)
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AddToLog("Found plugins");
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#endif // NO_PLUGINS
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// Check for invalid order items
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if(!originalSpecs->hasIgnoreIndex && mpt::contains(m_SndFile.Order(), m_SndFile.Order.GetIgnoreIndex()))
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{
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foundHacks = true;
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AddToLog("This format does not support separator (+++) patterns");
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if(autofix)
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{
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m_SndFile.Order().RemovePattern(m_SndFile.Order.GetIgnoreIndex());
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}
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}
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if(!originalSpecs->hasStopIndex && m_SndFile.Order().GetLengthFirstEmpty() != m_SndFile.Order().GetLengthTailTrimmed())
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{
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foundHacks = true;
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AddToLog("The pattern sequence should end after the first stop (---) index in this format.");
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if(autofix)
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{
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m_SndFile.Order().RemovePattern(m_SndFile.Order.GetInvalidPatIndex());
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}
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}
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// Global volume
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if(modType == MOD_TYPE_XM && m_SndFile.m_nDefaultGlobalVolume != MAX_GLOBAL_VOLUME)
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{
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foundHacks = true;
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AddToLog("XM format does not support default global volume");
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if(autofix)
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{
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GlobalVolumeToPattern();
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}
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}
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// Pattern count
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if(m_SndFile.Patterns.GetNumPatterns() > originalSpecs->patternsMax)
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{
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AddToLog(MPT_AFORMAT("Found too many patterns ({} allowed)")(originalSpecs->patternsMax));
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foundHacks = true;
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// REQUIRES (INTELLIGENT) AUTOFIX
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}
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// Check for too big/small patterns
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foundHere = false;
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for(auto &pat : m_SndFile.Patterns)
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{
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if(pat.IsValid())
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{
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const ROWINDEX patSize = pat.GetNumRows();
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if(patSize > originalSpecs->patternRowsMax)
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{
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foundHacks = foundHere = true;
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if(autofix)
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{
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// REQUIRES (INTELLIGENT) AUTOFIX
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} else
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{
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break;
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}
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} else if(patSize < originalSpecs->patternRowsMin)
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{
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foundHacks = foundHere = true;
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if(autofix)
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{
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pat.Resize(originalSpecs->patternRowsMin);
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pat.WriteEffect(EffectWriter(CMD_PATTERNBREAK, 0).Row(patSize - 1).RetryNextRow());
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} else
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{
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break;
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}
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}
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}
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}
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if(foundHere)
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{
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AddToLog(MPT_AFORMAT("Found incompatible pattern lengths (must be between {} and {} rows)")(originalSpecs->patternRowsMin, originalSpecs->patternRowsMax));
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}
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// Check for invalid pattern commands
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foundHere = false;
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m_SndFile.Patterns.ForEachModCommand([originalSpecs, &foundHere, autofix, modType] (ModCommand &m)
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{
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// definitely not perfect yet. :)
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// Probably missing: Some extended effect parameters
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if(!originalSpecs->HasNote(m.note))
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{
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foundHere = true;
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if(autofix)
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m.note = NOTE_NONE;
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}
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if(!originalSpecs->HasCommand(m.command))
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{
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foundHere = true;
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if(autofix)
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m.command = CMD_NONE;
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}
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if(!originalSpecs->HasVolCommand(m.volcmd))
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{
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foundHere = true;
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if(autofix)
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m.volcmd = VOLCMD_NONE;
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}
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if(modType == MOD_TYPE_XM) // ModPlug XM extensions
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{
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if(m.command == CMD_XFINEPORTAUPDOWN && m.param >= 0x30)
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{
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foundHere = true;
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if(autofix)
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m.command = CMD_NONE;
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}
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} else if(modType == MOD_TYPE_IT) // ModPlug IT extensions
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{
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if((m.command == CMD_S3MCMDEX) && ((m.param & 0xF0) == 0x90) && (m.param != 0x91))
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{
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foundHere = true;
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if(autofix)
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m.command = CMD_NONE;
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}
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}
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});
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if(foundHere)
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{
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AddToLog("Found invalid pattern commands");
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foundHacks = true;
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}
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// Check for pattern names
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const PATTERNINDEX numNamedPatterns = m_SndFile.Patterns.GetNumNamedPatterns();
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if(numNamedPatterns > 0 && !originalSpecs->hasPatternNames)
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{
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AddToLog("Found pattern names");
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foundHacks = true;
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if(autofix)
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{
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for(PATTERNINDEX i = 0; i < numNamedPatterns; i++)
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{
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m_SndFile.Patterns[i].SetName("");
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}
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}
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}
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// Check for too many channels
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if(m_SndFile.GetNumChannels() > originalSpecs->channelsMax || m_SndFile.GetNumChannels() < originalSpecs->channelsMin)
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{
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AddToLog(MPT_AFORMAT("Found incompatible channel count (must be between {} and {} channels)")(originalSpecs->channelsMin, originalSpecs->channelsMax));
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foundHacks = true;
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if(autofix)
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{
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std::vector<bool> usedChannels;
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CheckUsedChannels(usedChannels);
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RemoveChannels(usedChannels);
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// REQUIRES (INTELLIGENT) AUTOFIX
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}
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}
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// Check for channel names
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foundHere = false;
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for(CHANNELINDEX i = 0; i < m_SndFile.GetNumChannels(); i++)
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{
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if(!m_SndFile.ChnSettings[i].szName.empty())
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{
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foundHere = foundHacks = true;
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if(autofix)
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m_SndFile.ChnSettings[i].szName = "";
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else
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break;
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}
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}
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if(foundHere)
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AddToLog("Found channel names");
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// Check for too many samples
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if(m_SndFile.GetNumSamples() > originalSpecs->samplesMax)
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{
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AddToLog(MPT_AFORMAT("Found too many samples ({} allowed)")(originalSpecs->samplesMax));
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foundHacks = true;
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// REQUIRES (INTELLIGENT) AUTOFIX
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}
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// Check for sample extensions
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foundHere = false;
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for(SAMPLEINDEX i = 1; i <= m_SndFile.GetNumSamples(); i++)
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{
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ModSample &smp = m_SndFile.GetSample(i);
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if(modType == MOD_TYPE_XM && smp.GetNumChannels() > 1)
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{
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foundHere = foundHacks = true;
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if(autofix)
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{
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ctrlSmp::ConvertToMono(smp, m_SndFile, ctrlSmp::mixChannels);
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} else
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{
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break;
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}
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}
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}
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if(foundHere)
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AddToLog("Stereo samples are not supported in the original XM format");
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// Check for too many instruments
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if(m_SndFile.GetNumInstruments() > originalSpecs->instrumentsMax)
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{
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AddToLog(MPT_AFORMAT("Found too many instruments ({} allowed)")(originalSpecs->instrumentsMax));
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foundHacks = true;
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// REQUIRES (INTELLIGENT) AUTOFIX
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}
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// Check for instrument extensions
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foundHere = false;
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bool foundEnvelopes = false;
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for(INSTRUMENTINDEX i = 1; i <= m_SndFile.GetNumInstruments(); i++)
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{
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ModInstrument *instr = m_SndFile.Instruments[i];
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if(instr == nullptr) continue;
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// Extended instrument attributes
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if(instr->filterMode != FilterMode::Unchanged || instr->nVolRampUp != 0 || instr->resampling != SRCMODE_DEFAULT ||
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instr->nCutSwing != 0 || instr->nResSwing != 0 || instr->nMixPlug != 0 || instr->pitchToTempoLock.GetRaw() != 0 ||
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instr->nDCT == DuplicateCheckType::Plugin ||
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instr->VolEnv.nReleaseNode != ENV_RELEASE_NODE_UNSET ||
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instr->PanEnv.nReleaseNode != ENV_RELEASE_NODE_UNSET ||
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instr->PitchEnv.nReleaseNode != ENV_RELEASE_NODE_UNSET
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)
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{
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foundHere = foundHacks = true;
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if(autofix)
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{
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instr->filterMode = FilterMode::Unchanged;
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instr->nVolRampUp = 0;
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instr->resampling = SRCMODE_DEFAULT;
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instr->nCutSwing = 0;
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instr->nResSwing = 0;
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instr->nMixPlug = 0;
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instr->pitchToTempoLock.Set(0);
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if(instr->nDCT == DuplicateCheckType::Plugin) instr->nDCT = DuplicateCheckType::None;
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instr->VolEnv.nReleaseNode = instr->PanEnv.nReleaseNode = instr->PitchEnv.nReleaseNode = ENV_RELEASE_NODE_UNSET;
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}
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}
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// Incompatible envelope shape
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foundEnvelopes |= FindIncompatibleEnvelopes(instr->VolEnv, autofix);
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foundEnvelopes |= FindIncompatibleEnvelopes(instr->PanEnv, autofix);
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foundEnvelopes |= FindIncompatibleEnvelopes(instr->PitchEnv, autofix);
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foundHacks |= foundEnvelopes;
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}
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if(foundHere)
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AddToLog("Found MPT instrument extensions");
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if(foundEnvelopes)
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AddToLog("Two envelope points may not share the same tick.");
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// Check for too many orders
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if(m_SndFile.Order().GetLengthTailTrimmed() > originalSpecs->ordersMax)
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{
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AddToLog(MPT_AFORMAT("Found too many orders ({} allowed)")(originalSpecs->ordersMax));
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foundHacks = true;
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if(autofix)
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{
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// Can we be more intelligent here and maybe remove stop patterns and such?
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m_SndFile.Order().resize(originalSpecs->ordersMax);
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}
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}
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// Check for invalid default tempo
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if(m_SndFile.m_nDefaultTempo > originalSpecs->GetTempoMax() || m_SndFile.m_nDefaultTempo < originalSpecs->GetTempoMin())
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{
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AddToLog(MPT_AFORMAT("Found incompatible default tempo (must be between {} and {})")(originalSpecs->GetTempoMin().GetInt(), originalSpecs->GetTempoMax().GetInt()));
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foundHacks = true;
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if(autofix)
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m_SndFile.m_nDefaultTempo = Clamp(m_SndFile.m_nDefaultTempo, originalSpecs->GetTempoMin(), originalSpecs->GetTempoMax());
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}
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// Check for invalid default speed
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if(m_SndFile.m_nDefaultSpeed > originalSpecs->speedMax || m_SndFile.m_nDefaultSpeed < originalSpecs->speedMin)
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{
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AddToLog(MPT_AFORMAT("Found incompatible default speed (must be between {} and {})")(originalSpecs->speedMin, originalSpecs->speedMax));
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foundHacks = true;
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if(autofix)
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m_SndFile.m_nDefaultSpeed = Clamp(m_SndFile.m_nDefaultSpeed, originalSpecs->speedMin, originalSpecs->speedMax);
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}
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// Check for invalid rows per beat / measure values
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if(m_SndFile.m_nDefaultRowsPerBeat >= originalSpecs->patternRowsMax || m_SndFile.m_nDefaultRowsPerMeasure >= originalSpecs->patternRowsMax)
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{
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AddToLog("Found incompatible rows per beat / measure");
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foundHacks = true;
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if(autofix)
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{
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m_SndFile.m_nDefaultRowsPerBeat = Clamp(m_SndFile.m_nDefaultRowsPerBeat, 1u, (originalSpecs->patternRowsMax - 1));
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m_SndFile.m_nDefaultRowsPerMeasure = Clamp(m_SndFile.m_nDefaultRowsPerMeasure, m_SndFile.m_nDefaultRowsPerBeat, (originalSpecs->patternRowsMax - 1));
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}
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}
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// Find pattern-specific time signatures
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if(!originalSpecs->hasPatternSignatures)
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{
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foundHere = false;
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for(auto &pat : m_SndFile.Patterns)
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{
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if(pat.GetOverrideSignature())
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{
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if(!foundHere)
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AddToLog("Found pattern-specific time signatures");
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if(autofix)
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pat.RemoveSignature();
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foundHacks = foundHere = true;
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if(!autofix)
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break;
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}
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}
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}
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// Check for new tempo modes
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if(m_SndFile.m_nTempoMode != TempoMode::Classic)
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{
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AddToLog("Found incompatible tempo mode (only classic tempo mode allowed)");
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foundHacks = true;
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if(autofix)
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m_SndFile.m_nTempoMode = TempoMode::Classic;
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}
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// Check for extended filter range flag
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if(m_SndFile.m_SongFlags[SONG_EXFILTERRANGE])
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{
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AddToLog("Found extended filter range");
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foundHacks = true;
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if(autofix)
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m_SndFile.m_SongFlags.reset(SONG_EXFILTERRANGE);
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}
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// Player flags
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if((modType & (MOD_TYPE_XM|MOD_TYPE_IT)) && !m_SndFile.m_playBehaviour[MSF_COMPATIBLE_PLAY])
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{
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AddToLog("Compatible play is deactivated");
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foundHacks = true;
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if(autofix)
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m_SndFile.SetDefaultPlaybackBehaviour(modType);
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}
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// Check for restart position where it should not be
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for(SEQUENCEINDEX seq = 0; seq < m_SndFile.Order.GetNumSequences(); seq++)
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{
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if(m_SndFile.Order(seq).GetRestartPos() > 0 && !originalSpecs->hasRestartPos)
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{
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AddToLog("Found restart position");
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foundHacks = true;
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if(autofix)
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{
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m_SndFile.Order.RestartPosToPattern(seq);
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}
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}
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}
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if(!originalSpecs->hasArtistName && !m_SndFile.m_songArtist.empty() && !(modType & (MOD_TYPE_MOD | MOD_TYPE_S3M)))
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{
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AddToLog("Found artist name");
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foundHacks = true;
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if(autofix)
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{
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m_SndFile.m_songArtist.clear();
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}
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}
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if(m_SndFile.GetMixLevels() != MixLevels::Compatible && m_SndFile.GetMixLevels() != MixLevels::CompatibleFT2)
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{
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AddToLog("Found incorrect mix levels (only compatible mix levels allowed)");
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foundHacks = true;
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if(autofix)
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m_SndFile.SetMixLevels(modType == MOD_TYPE_XM ? MixLevels::CompatibleFT2 : MixLevels::Compatible);
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}
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// Check for extended MIDI macros
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if(modType == MOD_TYPE_IT)
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{
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for(const auto ¯o : m_SndFile.m_MidiCfg)
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{
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for(const auto c : std::string_view{macro})
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{
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if(c == 's')
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{
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foundHacks = true;
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AddToLog("Found SysEx checksum variable in MIDI macro");
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break;
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}
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}
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}
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}
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if(autofix && foundHacks)
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SetModified();
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return foundHacks;
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}
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OPENMPT_NAMESPACE_END
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