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/*************************************************************************** |
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* * |
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* libsf2 - C++ cross-platform SF2 format file access library * |
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* * |
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* Copyright (C) 2009-2010 Grigor Iliev <grigor@grigoriliev.com>, * |
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* Christian Schoenebeck and Andreas Persson * |
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* * |
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* This library 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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* * |
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* This library 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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* * |
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* You should have received a copy of the GNU General Public License * |
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* along with this library; if not, write to the Free Software * |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, * |
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* MA 02111-1307 USA * |
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***************************************************************************/ |
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|
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#include "RIFF.h" |
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|
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#include "SF.h" |
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|
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#include "helper.h" |
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#include <math.h> |
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|
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#define _1200TH_ROOT_OF_2 1.000577789506555 |
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#define _200TH_ROOT_OF_10 1.011579454259899 |
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|
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namespace sf2 { |
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double ToSeconds(int Timecents) { |
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if (Timecents == NONE) return NONE; |
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if (Timecents == 0) return 1.0; |
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if (Timecents == -32768) return 0.0; |
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return pow(_1200TH_ROOT_OF_2, Timecents); |
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} |
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|
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double ToRatio(int Centibels) { |
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if (Centibels == NONE) return NONE; |
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if (Centibels == 0) return 1.0; |
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return pow(_200TH_ROOT_OF_10, Centibels); |
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} |
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|
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double ToHz(int cents) { |
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if (cents == NONE) return NONE; |
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if (cents == 0) return 8.176; |
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return pow(_1200TH_ROOT_OF_2, cents) * 8.176; |
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} |
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|
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RIFF::Chunk* GetMandatoryChunk(RIFF::List* list, uint32_t chunkId) { |
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RIFF::Chunk* ck = list->GetSubChunk(chunkId); |
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if(ck == NULL) throw Exception("Mandatory chunk in RIFF list chunk not found: " + ToString(chunkId)); |
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return ck; |
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} |
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|
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void LoadString(RIFF::Chunk* ck, std::string& s, int strLength) { |
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if(ck == NULL) return; |
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char* buf = new char[strLength]; |
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int len = 0; |
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for(int i = 0; i < strLength; i++) { |
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buf[i] = ck->ReadInt8(); |
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if(buf[i] == 0 && !len) len = i; |
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} |
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if(!len) len = strLength; |
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s.assign(buf, len); |
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delete [] buf; |
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} |
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|
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/** |
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* Throws an error if the chunk is NULL or |
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* the chunk data size is less than size (in bytes). |
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*/ |
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void VerifySize(RIFF::Chunk* ck, int size) { |
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if (ck == NULL) throw Exception("NULL chunk"); |
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if (ck->GetSize() < size) { |
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throw Exception("Invalid chunk size. Chunk ID: " + ToString(ck->GetChunkID())); |
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} |
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} |
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|
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Modulator::Modulator(SFModulator mod) { |
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Type = mod >> 10; // The last 6 bits |
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Polarity = mod & (1 << 9); |
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Direction = mod & (1 << 8); |
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MidiPalete = mod & (1 << 7); // two paletes - general or MIDI |
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Index = mod & 0x7f; /* index field */; |
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|
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} |
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|
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ModulatorItem::ModulatorItem(ModList& mod) : |
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ModSrcOper(Modulator(mod.ModSrcOper)), |
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ModAmtSrcOper(Modulator(mod.ModAmtSrcOper)) |
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{ |
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|
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} |
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|
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Version::Version(RIFF::Chunk* ck) { |
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if(ck != NULL) VerifySize(ck, 4); |
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Major = ck ? ck->ReadUint16() : 0; |
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Minor = ck ? ck->ReadUint16() : 0; |
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} |
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|
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// *************** Info *************** |
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// * |
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|
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/** @brief Constructor. |
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* |
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* Initializes the info strings with values provided by an INFO list chunk. |
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* |
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* @param list - pointer to a list chunk which contains an INFO list chunk |
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*/ |
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Info::Info(RIFF::List* list) { |
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if (list) { |
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RIFF::List* lstINFO = list->GetSubList(LIST_TYPE_INFO); |
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if (lstINFO) { |
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pVer = new Version(GetMandatoryChunk(lstINFO, CHUNK_ID_IFIL)); |
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LoadString(CHUNK_ID_ISNG, lstINFO, SoundEngine); |
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LoadString(CHUNK_ID_INAM, lstINFO, BankName); |
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LoadString(CHUNK_ID_IROM, lstINFO, RomName); |
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pRomVer = new Version(lstINFO->GetSubChunk(CHUNK_ID_IVER)); |
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LoadString(CHUNK_ID_ICRD, lstINFO, CreationDate); |
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LoadString(CHUNK_ID_IENG, lstINFO, Engineers); |
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LoadString(CHUNK_ID_IPRD, lstINFO, Product); |
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LoadString(CHUNK_ID_ICOP, lstINFO, Copyright); |
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LoadString(CHUNK_ID_ICMT, lstINFO, Comments); |
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LoadString(CHUNK_ID_ISFT, lstINFO, Software); |
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|
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} |
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} |
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} |
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|
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Info::~Info() { |
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delete pVer; |
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delete pRomVer; |
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} |
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|
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/** @brief Load given INFO field. |
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* |
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* Load INFO field from INFO chunk with chunk ID \a ChunkID from INFO |
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* list chunk \a lstINFO and save value to \a s. |
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*/ |
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void Info::LoadString(uint32_t ChunkID, RIFF::List* lstINFO, String& s) { |
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RIFF::Chunk* ck = lstINFO->GetSubChunk(ChunkID); |
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::LoadString(ck, s); // function from helper.h |
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} |
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|
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Sample::Sample(File* file, RIFF::Chunk* ck, RIFF::Chunk* pCkSmpl, RIFF::Chunk* pCkSm24) { |
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this->pFile = file; |
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this->pCkSmpl = pCkSmpl; |
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this->pCkSm24 = pCkSm24; |
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|
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LoadString(ck, Name, 20); |
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Start = ck->ReadInt32(); |
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End = ck->ReadInt32(); |
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StartLoop = ck->ReadInt32(); |
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EndLoop = ck->ReadInt32(); |
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SampleRate = ck->ReadInt32(); |
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OriginalPitch = ck->ReadInt8(); |
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PitchCorrection = ck->ReadInt8(); |
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SampleLink = ck->ReadInt16(); |
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SampleType = ck->ReadInt16(); |
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|
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if (Start > End || !pCkSmpl || pCkSmpl->GetSize() <= End) { |
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throw Exception("Broken SF2 file (invalid sample info)"); |
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} |
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|
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ChannelCount = 1; |
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switch(SampleType) { |
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case 0 : // terminal sample |
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case sf2::Sample::MONO_SAMPLE : |
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case sf2::Sample::ROM_MONO_SAMPLE : break; |
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case sf2::Sample::RIGHT_SAMPLE : |
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case sf2::Sample::LEFT_SAMPLE : |
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case sf2::Sample::ROM_RIGHT_SAMPLE : |
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case sf2::Sample::ROM_LEFT_SAMPLE : ChannelCount = 2; break; |
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case sf2::Sample::LINKED_SAMPLE : |
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case sf2::Sample::ROM_LINKED_SAMPLE : std::cerr << "Linked samples not implemented yet"; break; |
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default: throw Exception("Broken SF2 file (invalid sample type)"); |
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} |
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|
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RAMCache.Size = 0; |
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RAMCache.pStart = NULL; |
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RAMCache.NullExtensionSize = 0; |
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} |
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|
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int Sample::GetChannelCount() { |
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return ChannelCount; |
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} |
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|
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long Sample::GetTotalFrameCount() { |
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return (End - Start); |
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} |
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|
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/** |
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* @returns The frame size in bytes |
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*/ |
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int Sample::GetFrameSize() { |
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return ChannelCount * ((pCkSm24 != NULL) ? 3 : 2); |
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} |
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|
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bool Sample::HasLoops() { |
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return StartLoop != 0 && EndLoop != 0; |
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} |
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|
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/** |
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* Reads \a SampleCount number of sample points from the position stored |
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* in \a pPlaybackState into the buffer pointed by \a pBuffer and moves |
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* the position within the sample respectively, this method honors the |
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* looping informations of the sample (if any). Use this |
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* method if you don't want to load the sample into RAM, thus for disk |
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* streaming. All this methods needs to know to proceed with streaming |
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* for the next time you call this method is stored in \a pPlaybackState. |
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* You have to allocate and initialize the playback_state_t structure by |
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* yourself before you use it to stream a sample: |
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* @code |
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* PlaybackState playbackstate; |
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* playbackstate.position = 0; |
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* playbackstate.reverse = false; |
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* playbackstate.loop_cycles_left = pSample->LoopPlayCount; |
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* @endcode |
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* You don't have to take care of things like if there is actually a loop |
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* defined or if the current read position is located within a loop area. |
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* The method already handles such cases by itself. |
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* |
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* @param pBuffer destination buffer |
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* @param FrameCount number of sample points to read |
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* @param pPlaybackState will be used to store and reload the playback |
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* state for the next ReadAndLoop() call |
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* @returns number of successfully read sample points |
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*/ |
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unsigned long Sample::ReadAndLoop ( |
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void* pBuffer, |
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unsigned long FrameCount, |
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PlaybackState* pPlaybackState, |
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Region* pRegion |
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) { |
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// TODO: startAddrsCoarseOffset, endAddrsCoarseOffset |
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unsigned long samplestoread = FrameCount, totalreadsamples = 0, readsamples, samplestoloopend; |
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uint8_t* pDst = (uint8_t*) pBuffer; |
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SetPos(pPlaybackState->position); |
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if (pRegion->HasLoop) { |
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do { |
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samplestoloopend = pRegion->LoopEnd - GetPos(); |
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readsamples = Read(&pDst[totalreadsamples * GetFrameSize()], Min(samplestoread, samplestoloopend)); |
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samplestoread -= readsamples; |
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totalreadsamples += readsamples; |
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if (readsamples == samplestoloopend) { |
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SetPos(pRegion->LoopStart); |
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} |
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} while (samplestoread && readsamples); |
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} else { |
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totalreadsamples = Read(pBuffer, FrameCount); |
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} |
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|
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pPlaybackState->position = GetPos(); |
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|
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return totalreadsamples; |
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} |
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|
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Region::Region() { |
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pSample = NULL; |
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pInstrument = NULL; |
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pParentInstrument = NULL; |
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loKey = hiKey = NONE; |
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minVel = maxVel = NONE; |
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startAddrsOffset = startAddrsCoarseOffset = endAddrsOffset = endAddrsCoarseOffset = 0; |
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startloopAddrsOffset = startloopAddrsCoarseOffset = endloopAddrsOffset = endloopAddrsCoarseOffset = 0; |
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pan = fineTune = coarseTune = 0; |
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overridingRootKey = -1; // -1 means not used |
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|
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HasLoop = false; |
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LoopStart = LoopEnd = 0; |
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|
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EG1PreAttackDelay = EG1Attack = EG1Hold = EG1Decay = EG1Release = -12000; |
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EG1Sustain = 0; |
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EG2PreAttackDelay = EG2Attack = EG2Hold = EG2Decay = EG2Release = -12000; |
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EG2Sustain = 0; |
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|
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modEnvToPitch = modLfoToPitch = modEnvToFilterFc = modLfoToFilterFc = modLfoToVolume = 0; |
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freqModLfo = 0; |
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delayModLfo = -12000; |
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vibLfoToPitch = 0; |
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freqVibLfo = 0; |
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delayVibLfo = -12000; |
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|
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exclusiveClass = 0; |
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|
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initialFilterFc = 13500; |
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initialFilterQ = 0; |
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} |
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|
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int Region::GetUnityNote() { |
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return overridingRootKey != -1 ? overridingRootKey : pSample->OriginalPitch; |
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} |
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|
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int CheckRange(std::string genName, int min, int max, int& gen) { |
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if (gen == NONE) return gen; |
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|
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if (gen < min) { |
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std::cerr << "sf2: " << genName; |
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std::cerr << " is below the minimum allowed value (min=" << min << "): " << gen << std::endl; |
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gen = min; |
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} |
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if (gen > max) { |
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std::cerr << "sf2: " << genName; |
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std::cerr << " is above the maximum allowed value (max=" << max << "): " << gen << std::endl; |
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gen = max; |
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} |
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|
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return gen; |
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} |
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|
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void Region::SetGenerator(sf2::File* pFile, GenList& Gen) { |
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switch(Gen.GenOper) { |
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case START_ADDRS_OFFSET: |
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startAddrsOffset = Gen.GenAmount.wAmount; |
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break; |
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case END_ADDRS_OFFSET: |
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if (Gen.GenAmount.shAmount <= 0) { |
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endAddrsOffset = Gen.GenAmount.shAmount; |
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} else { |
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std::cerr << "Ignoring invalid endAddrsOffset" << std::endl; |
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} |
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break; |
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case STARTLOOP_ADDRS_OFFSET: |
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startloopAddrsOffset = Gen.GenAmount.shAmount; |
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LoopStart += startloopAddrsOffset; |
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break; |
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case ENDLOOP_ADDRS_OFFSET: |
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endloopAddrsOffset = Gen.GenAmount.shAmount; |
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LoopEnd += endloopAddrsOffset; |
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break; |
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case START_ADDRS_COARSE_OFFSET: |
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startAddrsCoarseOffset = Gen.GenAmount.wAmount; |
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break; |
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case MOD_LFO_TO_PITCH: |
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modLfoToPitch = Gen.GenAmount.shAmount; |
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CheckRange("modLfoToPitch", -12000, 12000, modLfoToPitch); |
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break; |
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case VIB_LFO_TO_PITCH: |
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vibLfoToPitch = Gen.GenAmount.shAmount; |
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CheckRange("vibLfoToPitch", -12000, 12000, vibLfoToPitch); |
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break; |
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case MOD_ENV_TO_PITCH: |
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modEnvToPitch = Gen.GenAmount.shAmount; |
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CheckRange("modEnvToPitch", -12000, 12000, modEnvToPitch); |
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break; |
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case INITIAL_FILTER_FC: |
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initialFilterFc = Gen.GenAmount.wAmount; |
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CheckRange("initialFilterFc", 1500, 13500, initialFilterFc); |
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break; |
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case INITIAL_FILTER_Q: |
356 |
initialFilterQ = Gen.GenAmount.wAmount; |
357 |
CheckRange("initialFilterQ", 0, 960, initialFilterQ); |
358 |
break; |
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case MOD_LFO_TO_FILTER_FC: |
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modLfoToFilterFc = Gen.GenAmount.shAmount; |
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CheckRange("modLfoToFilterFc", -12000, 12000, modLfoToFilterFc); |
362 |
break; |
363 |
case MOD_ENV_TO_FILTER_FC: |
364 |
modEnvToFilterFc = Gen.GenAmount.shAmount; |
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CheckRange("modEnvToFilterFc", -12000, 12000, modEnvToFilterFc); |
366 |
break; |
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case END_ADDRS_COARSE_OFFSET: |
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endAddrsCoarseOffset = Gen.GenAmount.wAmount; |
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break; |
370 |
case MOD_LFO_TO_VOLUME: |
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modLfoToVolume = Gen.GenAmount.shAmount; |
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CheckRange("modLfoToVolume", -960, 960, modLfoToVolume); |
373 |
break; |
374 |
case CHORUS_EFFECTS_SEND: |
375 |
break; |
376 |
case REVERB_EFFECTS_SEND: |
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break; |
378 |
case PAN: |
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pan = Gen.GenAmount.shAmount; |
380 |
CheckRange("pan", -500, 500, pan); |
381 |
pan = pan * 64 / 500; |
382 |
if (pan > 63) pan = 63; |
383 |
break; |
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case DELAY_MOD_LFO: |
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delayModLfo = Gen.GenAmount.shAmount; |
386 |
CheckRange("delayModLfo", -12000, 5000, delayModLfo); |
387 |
break; |
388 |
case FREQ_MOD_LFO: |
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freqModLfo = Gen.GenAmount.shAmount; |
390 |
CheckRange("freqModLfo", -16000, 4500, freqModLfo); |
391 |
break; |
392 |
case DELAY_VIB_LFO: |
393 |
delayVibLfo = Gen.GenAmount.shAmount; |
394 |
CheckRange("delayVibLfo", -12000, 5000, delayVibLfo); |
395 |
break; |
396 |
case FREQ_VIB_LFO: |
397 |
freqVibLfo = Gen.GenAmount.shAmount; |
398 |
CheckRange("freqModLfo", -16000, 4500, freqModLfo); |
399 |
break; |
400 |
case DELAY_MOD_ENV: |
401 |
EG2PreAttackDelay = Gen.GenAmount.shAmount; |
402 |
CheckRange("delayModEnv", -12000, 5000, EG2PreAttackDelay); |
403 |
break; |
404 |
case ATTACK_MOD_ENV: |
405 |
EG2Attack = Gen.GenAmount.shAmount; |
406 |
CheckRange("attackModEnv", -12000, 8000, EG2Attack); |
407 |
break; |
408 |
case HOLD_MOD_ENV: |
409 |
EG2Hold = Gen.GenAmount.shAmount; |
410 |
CheckRange("holdModEnv", -12000, 5000, EG2Hold); |
411 |
break; |
412 |
case DECAY_MOD_ENV: |
413 |
EG2Decay = Gen.GenAmount.shAmount; |
414 |
CheckRange("decayModEnv", -12000, 8000, EG2Decay); |
415 |
break; |
416 |
case SUSTAIN_MOD_ENV: |
417 |
EG2Sustain = Gen.GenAmount.shAmount; |
418 |
CheckRange("sustainModEnv", 0, 1000, EG2Sustain); |
419 |
break; |
420 |
case RELEASE_MOD_ENV: |
421 |
EG2Release = Gen.GenAmount.shAmount; |
422 |
CheckRange("releaseModEnv", -12000, 8000, EG2Release); |
423 |
break; |
424 |
case KEYNUM_TO_MOD_ENV_HOLD: |
425 |
break; |
426 |
case KEYNUM_TO_MOD_ENV_DECAY: |
427 |
break; |
428 |
case DELAY_VOL_ENV: |
429 |
EG1PreAttackDelay = Gen.GenAmount.shAmount; |
430 |
CheckRange("delayVolEnv", -12000, 5000, EG1PreAttackDelay); |
431 |
break; |
432 |
case ATTACK_VOL_ENV: |
433 |
EG1Attack = Gen.GenAmount.shAmount; |
434 |
CheckRange("attackVolEnv", -12000, 8000, EG1Attack); |
435 |
break; |
436 |
case HOLD_VOL_ENV: |
437 |
EG1Hold = Gen.GenAmount.shAmount; |
438 |
CheckRange("holdVolEnv", -12000, 5000, EG1Hold); |
439 |
break; |
440 |
case DECAY_VOL_ENV: |
441 |
EG1Decay = Gen.GenAmount.shAmount; |
442 |
CheckRange("decayVolEnv", -12000, 8000, EG1Decay); |
443 |
break; |
444 |
case SUSTAIN_VOL_ENV: |
445 |
EG1Sustain = Gen.GenAmount.shAmount; |
446 |
CheckRange("sustainVolEnv", 0, 1440, EG1Sustain); |
447 |
break; |
448 |
case RELEASE_VOL_ENV: |
449 |
EG1Release = Gen.GenAmount.shAmount; |
450 |
CheckRange("releaseVolEnv", -12000, 8000, EG1Release); |
451 |
break; |
452 |
case KEYNUM_TO_VOL_ENV_HOLD: |
453 |
break; |
454 |
case KEYNUM_TO_VOL_ENV_DECAY: |
455 |
break; |
456 |
case INSTRUMENT: { |
457 |
uint16_t id = Gen.GenAmount.wAmount; |
458 |
if (id >= pFile->Instruments.size()) { |
459 |
throw Exception("Broken SF2 file (missing instruments)"); |
460 |
} |
461 |
pInstrument = pFile->Instruments[id]; |
462 |
break; |
463 |
} |
464 |
case KEY_RANGE: |
465 |
loKey = Gen.GenAmount.ranges.byLo; |
466 |
CheckRange("loKey", 0, 127, loKey); |
467 |
hiKey = Gen.GenAmount.ranges.byHi; |
468 |
CheckRange("hiKey", 0, 127, hiKey); |
469 |
break; |
470 |
case VEL_RANGE: |
471 |
minVel = Gen.GenAmount.ranges.byLo; |
472 |
CheckRange("minVel", 0, 127, minVel); |
473 |
maxVel = Gen.GenAmount.ranges.byHi; |
474 |
CheckRange("maxVel", 0, 127, maxVel); |
475 |
break; |
476 |
case STARTLOOP_ADDRS_COARSE_OFFSET: |
477 |
startloopAddrsCoarseOffset = Gen.GenAmount.wAmount; |
478 |
LoopStart += startloopAddrsCoarseOffset * 32768; |
479 |
break; |
480 |
case KEYNUM: |
481 |
break; |
482 |
case VELOCITY: |
483 |
break; |
484 |
case INITIAL_ATTENUATION: |
485 |
break; |
486 |
case ENDLOOP_ADDRS_COARSE_OFFSET: |
487 |
endloopAddrsCoarseOffset = Gen.GenAmount.wAmount; |
488 |
LoopEnd += endloopAddrsCoarseOffset * 32768; |
489 |
break; |
490 |
case COARSE_TUNE: |
491 |
coarseTune = Gen.GenAmount.shAmount; |
492 |
CheckRange("coarseTune", -120, 120, coarseTune); |
493 |
break; |
494 |
case FINE_TUNE: |
495 |
fineTune = Gen.GenAmount.shAmount; |
496 |
CheckRange("fineTune", -99, 99, fineTune); |
497 |
break; |
498 |
case SAMPLE_ID: { |
499 |
uint16_t sid = Gen.GenAmount.wAmount; |
500 |
if (sid >= pFile->Samples.size()) { |
501 |
throw Exception("Broken SF2 file (missing samples)"); |
502 |
} |
503 |
pSample = pFile->Samples[sid]; |
504 |
|
505 |
if (HasLoop) { |
506 |
LoopStart += pSample->StartLoop; |
507 |
LoopEnd += pSample->EndLoop; |
508 |
if ( LoopStart < pSample->Start || LoopStart > pSample->End || |
509 |
LoopStart > LoopEnd || LoopEnd > pSample->End ) { |
510 |
throw Exception("Broken SF2 file (invalid loops)"); |
511 |
} |
512 |
LoopStart -= pSample->Start; // Relative to the sample start |
513 |
LoopEnd -= pSample->Start; // Relative to the sample start |
514 |
} |
515 |
break; |
516 |
} |
517 |
case SAMPLE_MODES: |
518 |
HasLoop = Gen.GenAmount.wAmount & 1; |
519 |
// TODO: 3 indicates a sound which loops for the duration of key depression |
520 |
// then proceeds to play the remainder of the sample. |
521 |
break; |
522 |
case SCALE_TUNING: |
523 |
break; |
524 |
case EXCLUSIVE_CLASS: |
525 |
exclusiveClass = Gen.GenAmount.wAmount; |
526 |
break; |
527 |
case OVERRIDING_ROOT_KEY: |
528 |
overridingRootKey = Gen.GenAmount.shAmount; |
529 |
CheckRange("overridingRootKey", -1, 127, overridingRootKey); |
530 |
break; |
531 |
} |
532 |
} |
533 |
|
534 |
void Region::SetModulator(sf2::File* pFile, ModList& Mod) { |
535 |
modulators.push_back(ModulatorItem(Mod)); |
536 |
/*switch(srcType) { |
537 |
case NO_CONTROLLER: |
538 |
break; |
539 |
case NOTE_ON_VELOCITY: |
540 |
break; |
541 |
case NOTE_ON_KEY_NUMBER: |
542 |
break; |
543 |
case POLY_PRESSURE: |
544 |
break; |
545 |
case CHANNEL_PRESSURE: |
546 |
break; |
547 |
case PITCH_WHEEL: |
548 |
break; |
549 |
case PITCH_WHEEL_SENSITIVITY: |
550 |
break; |
551 |
case LINK: |
552 |
break; |
553 |
default: std::cout << "Unknown controller source: " << srcType << std::endl; |
554 |
}*/ |
555 |
} |
556 |
|
557 |
int Region::GetPan(Region* pPresetRegion) { |
558 |
if (pPresetRegion == NULL) return pan; |
559 |
int p = pPresetRegion->pan + pan; |
560 |
if (p < -64) p = -64; |
561 |
if (p > 63) p = 63; |
562 |
return p; |
563 |
} |
564 |
|
565 |
int Region::GetFineTune(Region* pPresetRegion) { |
566 |
if (pPresetRegion == NULL) return fineTune; |
567 |
int t = pPresetRegion->fineTune + fineTune; |
568 |
if (t < -99) t = -99; |
569 |
if (t > 99) t = 99; |
570 |
return t; |
571 |
} |
572 |
|
573 |
int Region::GetCoarseTune(Region* pPresetRegion) { |
574 |
if (pPresetRegion == NULL) return coarseTune; |
575 |
int t = pPresetRegion->coarseTune + coarseTune; |
576 |
if (t < -120) t = -120; |
577 |
if (t > 120) t = 120; |
578 |
return t; |
579 |
} |
580 |
|
581 |
double Region::GetEG1PreAttackDelay(Region* pPresetRegion) { |
582 |
int val = (pPresetRegion == NULL || pPresetRegion->EG1PreAttackDelay == NONE) ? |
583 |
EG1PreAttackDelay : pPresetRegion->EG1PreAttackDelay + EG1PreAttackDelay; |
584 |
return ToSeconds(CheckRange("GetEG1PreAttackDelay()", -12000, 5000, val)); |
585 |
} |
586 |
|
587 |
double Region::GetEG1Attack(Region* pPresetRegion) { |
588 |
int val = (pPresetRegion == NULL || pPresetRegion->EG1Attack == NONE) ? |
589 |
EG1Attack : pPresetRegion->EG1Attack + EG1Attack; |
590 |
return ToSeconds(CheckRange("GetEG1Attack()", -12000, 8000, val)); |
591 |
} |
592 |
|
593 |
double Region::GetEG1Hold(Region* pPresetRegion) { |
594 |
int val = (pPresetRegion == NULL || pPresetRegion->EG1Hold == NONE) ? |
595 |
EG1Hold : pPresetRegion->EG1Hold + EG1Hold; |
596 |
return ToSeconds(CheckRange("GetEG1Hold()", -12000, 5000, val)); |
597 |
} |
598 |
|
599 |
double Region::GetEG1Decay(Region* pPresetRegion) { |
600 |
int val = (pPresetRegion == NULL || pPresetRegion->EG1Decay == NONE) ? |
601 |
EG1Decay : pPresetRegion->EG1Decay + EG1Decay; |
602 |
return ToSeconds(CheckRange("GetEG1Decay()", -12000, 8000, val)); |
603 |
} |
604 |
|
605 |
int Region::GetEG1Sustain(Region* pPresetRegion) { |
606 |
int val = (pPresetRegion == NULL || pPresetRegion->EG1Sustain == NONE) ? |
607 |
EG1Sustain : pPresetRegion->EG1Sustain + EG1Sustain; |
608 |
return CheckRange("GetEG1Sustain()", 0, 1440, val); |
609 |
} |
610 |
|
611 |
double Region::GetEG1Release(Region* pPresetRegion) { |
612 |
int val = (pPresetRegion == NULL || pPresetRegion->EG1Release == NONE) ? |
613 |
EG1Release : pPresetRegion->EG1Release + EG1Release; |
614 |
return ToSeconds(CheckRange("GetEG1Release()", -12000, 8000, val)); |
615 |
} |
616 |
|
617 |
double Region::GetEG2PreAttackDelay(Region* pPresetRegion) { |
618 |
int val = (pPresetRegion == NULL || pPresetRegion->EG2PreAttackDelay == NONE) ? |
619 |
EG2PreAttackDelay : pPresetRegion->EG2PreAttackDelay + EG2PreAttackDelay; |
620 |
return ToSeconds(CheckRange("GetEG2PreAttackDelay()", -12000, 5000, val)); |
621 |
} |
622 |
|
623 |
double Region::GetEG2Attack(Region* pPresetRegion) { |
624 |
int val = (pPresetRegion == NULL || pPresetRegion->EG2Attack == NONE) ? |
625 |
EG2Attack : pPresetRegion->EG2Attack + EG2Attack; |
626 |
return ToSeconds(CheckRange("GetEG2Attack()", -12000, 8000, val)); |
627 |
} |
628 |
|
629 |
double Region::GetEG2Hold(Region* pPresetRegion) { |
630 |
int val = (pPresetRegion == NULL || pPresetRegion->EG2Hold == NONE) ? |
631 |
EG2Hold : pPresetRegion->EG2Hold + EG2Hold; |
632 |
return ToSeconds(CheckRange("GetEG2Hold()", -12000, 5000, val)); |
633 |
} |
634 |
|
635 |
double Region::GetEG2Decay(Region* pPresetRegion) { |
636 |
int val = (pPresetRegion == NULL || pPresetRegion->EG2Decay == NONE) ? |
637 |
EG2Decay : pPresetRegion->EG2Decay + EG2Decay; |
638 |
return ToSeconds(CheckRange("GetEG2Decay()", -12000, 8000, val)); |
639 |
} |
640 |
|
641 |
int Region::GetEG2Sustain(Region* pPresetRegion) { |
642 |
int val = (pPresetRegion == NULL || pPresetRegion->EG2Sustain == NONE) ? |
643 |
EG2Sustain : pPresetRegion->EG2Sustain + EG2Sustain; |
644 |
return CheckRange("GetEG2Sustain()", 0, 1000, val); |
645 |
} |
646 |
|
647 |
double Region::GetEG2Release(Region* pPresetRegion) { |
648 |
int val = (pPresetRegion == NULL || pPresetRegion->EG2Release == NONE) ? |
649 |
EG2Release : pPresetRegion->EG2Release + EG2Release; |
650 |
return ToSeconds(CheckRange("GetEG2Release()", -12000, 8000, val)); |
651 |
} |
652 |
|
653 |
int Region::GetModEnvToPitch(Region* pPresetRegion) { |
654 |
int val = (pPresetRegion == NULL || pPresetRegion->modEnvToPitch == NONE) ? |
655 |
modEnvToPitch : pPresetRegion->modEnvToPitch + modEnvToPitch; |
656 |
return CheckRange("GetModEnvToPitch()", -12000, 12000, val); |
657 |
} |
658 |
|
659 |
int Region::GetModLfoToPitch(Region* pPresetRegion) { |
660 |
int val = (pPresetRegion == NULL || pPresetRegion->modLfoToPitch == NONE) ? |
661 |
modLfoToPitch : pPresetRegion->modLfoToPitch + modLfoToPitch; |
662 |
return CheckRange("GetModLfoToPitch()", -12000, 12000, val); |
663 |
} |
664 |
|
665 |
int Region::GetModEnvToFilterFc(Region* pPresetRegion) { |
666 |
int val = (pPresetRegion == NULL || pPresetRegion->modEnvToFilterFc == NONE) ? |
667 |
modEnvToFilterFc : pPresetRegion->modEnvToFilterFc + modEnvToFilterFc; |
668 |
return CheckRange("GetModEnvToFilterFc()", -12000, +12000, val); |
669 |
} |
670 |
|
671 |
int Region::GetModLfoToFilterFc(Region* pPresetRegion) { |
672 |
int val = (pPresetRegion == NULL || pPresetRegion->modLfoToFilterFc == NONE) ? |
673 |
modLfoToFilterFc : pPresetRegion->modLfoToFilterFc + modLfoToFilterFc; |
674 |
return CheckRange("GetModLfoToFilterFc()", -12000, +12000, val); |
675 |
} |
676 |
|
677 |
double Region::GetModLfoToVolume(Region* pPresetRegion) { |
678 |
int val = (pPresetRegion == NULL || pPresetRegion->modLfoToVolume == NONE) ? |
679 |
modLfoToVolume : pPresetRegion->modLfoToVolume + modLfoToVolume; |
680 |
return CheckRange("GetModLfoToVolume()", -960, 960, val); |
681 |
} |
682 |
|
683 |
double Region::GetFreqModLfo(Region* pPresetRegion) { |
684 |
int val = (pPresetRegion == NULL || pPresetRegion->freqModLfo == NONE) ? |
685 |
freqModLfo : pPresetRegion->freqModLfo + freqModLfo; |
686 |
return ToHz(CheckRange("GetFreqModLfo()", -16000, 4500, val)); |
687 |
} |
688 |
|
689 |
double Region::GetDelayModLfo(Region* pPresetRegion) { |
690 |
int val = (pPresetRegion == NULL || pPresetRegion->delayModLfo == NONE) ? |
691 |
delayModLfo : pPresetRegion->delayModLfo + delayModLfo; |
692 |
return ToSeconds(CheckRange("GetDelayModLfo()", -12000, 5000, val)); |
693 |
} |
694 |
|
695 |
int Region::GetVibLfoToPitch(Region* pPresetRegion) { |
696 |
int val = (pPresetRegion == NULL || pPresetRegion->vibLfoToPitch == NONE) ? |
697 |
vibLfoToPitch : pPresetRegion->vibLfoToPitch + vibLfoToPitch; |
698 |
return CheckRange("GetVibLfoToPitch()", -12000, 12000, val); |
699 |
} |
700 |
|
701 |
double Region::GetFreqVibLfo(Region* pPresetRegion) { |
702 |
int val = (pPresetRegion == NULL || pPresetRegion->freqVibLfo == NONE) ? |
703 |
freqVibLfo : pPresetRegion->freqVibLfo + freqVibLfo; |
704 |
return ToHz(CheckRange("GetFreqVibLfo()", -16000, 4500, val)); |
705 |
} |
706 |
|
707 |
double Region::GetDelayVibLfo(Region* pPresetRegion) { |
708 |
int val = (pPresetRegion == NULL || pPresetRegion->delayVibLfo == NONE) ? |
709 |
delayVibLfo : pPresetRegion->delayVibLfo + delayVibLfo; |
710 |
return ToSeconds(CheckRange("GetDelayVibLfo()", -12000, 5000, val)); |
711 |
} |
712 |
|
713 |
int Region::GetInitialFilterFc(Region* pPresetRegion) { |
714 |
if (pPresetRegion == NULL || pPresetRegion->initialFilterFc == NONE) return initialFilterFc; |
715 |
int val = pPresetRegion->initialFilterFc + initialFilterFc; |
716 |
return CheckRange("GetInitialFilterFc()", 1500, 13500, val); |
717 |
} |
718 |
|
719 |
int Region::GetInitialFilterQ(Region* pPresetRegion) { |
720 |
int val = (pPresetRegion == NULL || pPresetRegion->initialFilterQ == NONE) ? |
721 |
initialFilterQ : pPresetRegion->initialFilterQ + initialFilterQ; |
722 |
return CheckRange("GetInitialFilterQ()", 0, 960, val); |
723 |
} |
724 |
|
725 |
InstrumentBase::InstrumentBase(sf2::File* pFile) { |
726 |
this->pFile = pFile; |
727 |
pGlobalRegion = NULL; |
728 |
} |
729 |
|
730 |
InstrumentBase::~InstrumentBase() { |
731 |
if (pGlobalRegion) delete pGlobalRegion; |
732 |
for (ssize_t i = regions.size() - 1; i >= 0; i--) { |
733 |
if (regions[i]) delete (regions[i]); |
734 |
} |
735 |
} |
736 |
|
737 |
int InstrumentBase::GetRegionCount() { |
738 |
return (int) regions.size(); |
739 |
} |
740 |
|
741 |
Region* InstrumentBase::GetRegion(int idx) { |
742 |
if (idx < 0 || idx >= GetRegionCount()) { |
743 |
throw Exception("Region index out of bounds"); |
744 |
} |
745 |
|
746 |
return regions[idx]; |
747 |
} |
748 |
|
749 |
Query::Query(InstrumentBase& instrument) : instrument(instrument) { |
750 |
i = 0; |
751 |
} |
752 |
|
753 |
Region* Query::next() { |
754 |
while (i < instrument.GetRegionCount()) { |
755 |
Region* r = instrument.GetRegion(i++); |
756 |
if (((r->loKey == NONE && r->hiKey == NONE) || (key >= r->loKey && key <= r->hiKey)) && |
757 |
((r->minVel == NONE && r->maxVel == NONE) || (vel >= r->minVel && vel <= r->maxVel))) { |
758 |
return r; |
759 |
} |
760 |
} |
761 |
return 0; |
762 |
} |
763 |
|
764 |
Instrument::Instrument(sf2::File* pFile, RIFF::Chunk* ck) : InstrumentBase(pFile) { |
765 |
this->pFile = pFile; |
766 |
LoadString(ck, Name, 20); |
767 |
InstBagNdx = ck->ReadInt16(); |
768 |
} |
769 |
|
770 |
Instrument::~Instrument() { |
771 |
} |
772 |
|
773 |
Region* Instrument::CreateRegion() { |
774 |
Region* r = new Region; |
775 |
r->pParentInstrument = this; |
776 |
|
777 |
if (pGlobalRegion != NULL) { |
778 |
r->loKey = pGlobalRegion->loKey; |
779 |
r->hiKey = pGlobalRegion->hiKey; |
780 |
r->minVel = pGlobalRegion->minVel; |
781 |
r->maxVel = pGlobalRegion->maxVel; |
782 |
r->pan = pGlobalRegion->pan; |
783 |
r->fineTune = pGlobalRegion->fineTune; |
784 |
r->coarseTune = pGlobalRegion->coarseTune; |
785 |
r->overridingRootKey = pGlobalRegion->overridingRootKey; |
786 |
r->startAddrsOffset = pGlobalRegion->startAddrsOffset; |
787 |
r->startAddrsCoarseOffset = pGlobalRegion->startAddrsCoarseOffset; |
788 |
r->endAddrsOffset = pGlobalRegion->endAddrsOffset; |
789 |
r->endAddrsCoarseOffset = pGlobalRegion->endAddrsCoarseOffset; |
790 |
r->startloopAddrsOffset = pGlobalRegion->startloopAddrsOffset; |
791 |
r->startloopAddrsCoarseOffset = pGlobalRegion->startloopAddrsCoarseOffset; |
792 |
r->endloopAddrsOffset = pGlobalRegion->endloopAddrsOffset; |
793 |
r->endloopAddrsCoarseOffset = pGlobalRegion->endloopAddrsCoarseOffset; |
794 |
|
795 |
r->EG1PreAttackDelay = pGlobalRegion->EG1PreAttackDelay; |
796 |
r->EG1Attack = pGlobalRegion->EG1Attack; |
797 |
r->EG1Hold = pGlobalRegion->EG1Hold; |
798 |
r->EG1Decay = pGlobalRegion->EG1Decay; |
799 |
r->EG1Sustain = pGlobalRegion->EG1Sustain; |
800 |
r->EG1Release = pGlobalRegion->EG1Release; |
801 |
|
802 |
r->EG2PreAttackDelay = pGlobalRegion->EG2PreAttackDelay; |
803 |
r->EG2Attack = pGlobalRegion->EG2Attack; |
804 |
r->EG2Hold = pGlobalRegion->EG2Hold; |
805 |
r->EG2Decay = pGlobalRegion->EG2Decay; |
806 |
r->EG2Sustain = pGlobalRegion->EG2Sustain; |
807 |
r->EG2Release = pGlobalRegion->EG2Release; |
808 |
|
809 |
r->modEnvToPitch = pGlobalRegion->modEnvToPitch; |
810 |
r->modLfoToPitch = pGlobalRegion->modLfoToPitch; |
811 |
r->modEnvToFilterFc = pGlobalRegion->modEnvToFilterFc; |
812 |
r->modLfoToFilterFc = pGlobalRegion->modLfoToFilterFc; |
813 |
r->modLfoToVolume = pGlobalRegion->modLfoToVolume; |
814 |
r->freqModLfo = pGlobalRegion->freqModLfo; |
815 |
r->delayModLfo = pGlobalRegion->delayModLfo; |
816 |
r->vibLfoToPitch = pGlobalRegion->vibLfoToPitch; |
817 |
r->freqVibLfo = pGlobalRegion->freqVibLfo; |
818 |
r->delayVibLfo = pGlobalRegion->delayVibLfo; |
819 |
r->initialFilterFc = pGlobalRegion->initialFilterFc; |
820 |
r->initialFilterQ = pGlobalRegion->initialFilterQ; |
821 |
|
822 |
r->HasLoop = pGlobalRegion->HasLoop; |
823 |
r->LoopStart = pGlobalRegion->LoopStart; |
824 |
r->LoopEnd = pGlobalRegion->LoopEnd; |
825 |
|
826 |
r->exclusiveClass = pGlobalRegion->exclusiveClass; |
827 |
} |
828 |
|
829 |
return r; |
830 |
} |
831 |
|
832 |
void Instrument::DeleteRegion(Region* pRegion) { |
833 |
for (int i = 0; i < regions.size(); i++) { |
834 |
if (regions[i] == pRegion) { |
835 |
delete pRegion; |
836 |
regions[i] = NULL; |
837 |
return; |
838 |
} |
839 |
} |
840 |
|
841 |
std::cerr << "Can't remove unknown Region" << std::endl; |
842 |
} |
843 |
|
844 |
void Instrument::LoadRegions(int idx1, int idx2) { |
845 |
for (int i = idx1; i < idx2; i++) { |
846 |
int gIdx1 = pFile->InstBags[i].InstGenNdx; |
847 |
int gIdx2 = pFile->InstBags[i + 1].InstGenNdx; |
848 |
|
849 |
if (gIdx1 < 0 || gIdx2 < 0 || gIdx1 > gIdx2 || gIdx2 >= pFile->InstGenLists.size()) { |
850 |
throw Exception("Broken SF2 file (invalid InstGenNdx)"); |
851 |
} |
852 |
|
853 |
int mIdx1 = pFile->InstBags[i].InstModNdx; |
854 |
int mIdx2 = pFile->InstBags[i + 1].InstModNdx; |
855 |
|
856 |
if (mIdx1 < 0 || mIdx2 < 0 || mIdx1 > mIdx2 || mIdx2 >= pFile->InstModLists.size()) { |
857 |
throw Exception("Broken SF2 file (invalid InstModNdx)"); |
858 |
} |
859 |
|
860 |
Region* reg = CreateRegion(); |
861 |
|
862 |
for (int j = gIdx1; j < gIdx2; j++) { |
863 |
reg->SetGenerator(pFile, pFile->InstGenLists[j]); |
864 |
// TODO: ignore generators following a sampleID generator |
865 |
} |
866 |
|
867 |
for (int j = mIdx1; j < mIdx2; j++) { |
868 |
reg->SetModulator(pFile, pFile->InstModLists[j]); |
869 |
} |
870 |
|
871 |
if (reg->pSample == NULL) { |
872 |
if (i == idx1 && idx2 - idx1 > 1) { |
873 |
pGlobalRegion = reg; // global zone |
874 |
} else { |
875 |
std::cerr << "Ignoring instrument's region without sample" << std::endl; |
876 |
delete reg; |
877 |
} |
878 |
} else { |
879 |
regions.push_back(reg); |
880 |
} |
881 |
} |
882 |
} |
883 |
|
884 |
Preset::Preset(sf2::File* pFile, RIFF::Chunk* ck): InstrumentBase(pFile) { |
885 |
this->pFile = pFile; |
886 |
LoadString(ck, Name, 20); |
887 |
PresetNum = ck->ReadInt16(); |
888 |
Bank = ck->ReadInt16(); |
889 |
PresetBagNdx = ck->ReadInt16(); |
890 |
Library = ck->ReadInt32(); |
891 |
Genre = ck->ReadInt32(); |
892 |
Morphology = ck->ReadInt32(); |
893 |
} |
894 |
|
895 |
Preset::~Preset() { |
896 |
} |
897 |
|
898 |
Region* Preset::CreateRegion() { |
899 |
Region* r = new Region; |
900 |
|
901 |
r->EG1PreAttackDelay = r->EG1Attack = r->EG1Hold = r->EG1Decay = r->EG1Sustain = r->EG1Release = NONE; |
902 |
r->EG2PreAttackDelay = r->EG2Attack = r->EG2Hold = r->EG2Decay = r->EG2Sustain = r->EG2Release = NONE; |
903 |
r->freqModLfo = r->delayModLfo = r->freqVibLfo = r->delayVibLfo = NONE; |
904 |
r->initialFilterFc = r->initialFilterQ = NONE; |
905 |
|
906 |
if (pGlobalRegion != NULL) { |
907 |
r->pan = pGlobalRegion->pan; |
908 |
r->fineTune = pGlobalRegion->fineTune; |
909 |
r->coarseTune = pGlobalRegion->coarseTune; |
910 |
|
911 |
r->EG1PreAttackDelay = pGlobalRegion->EG1PreAttackDelay; |
912 |
r->EG1Attack = pGlobalRegion->EG1Attack; |
913 |
r->EG1Hold = pGlobalRegion->EG1Hold; |
914 |
r->EG1Decay = pGlobalRegion->EG1Decay; |
915 |
r->EG1Sustain = pGlobalRegion->EG1Sustain; |
916 |
r->EG1Release = pGlobalRegion->EG1Release; |
917 |
|
918 |
r->EG2PreAttackDelay = pGlobalRegion->EG2PreAttackDelay; |
919 |
r->EG2Attack = pGlobalRegion->EG2Attack; |
920 |
r->EG2Hold = pGlobalRegion->EG2Hold; |
921 |
r->EG2Decay = pGlobalRegion->EG2Decay; |
922 |
r->EG2Sustain = pGlobalRegion->EG2Sustain; |
923 |
r->EG2Release = pGlobalRegion->EG2Release; |
924 |
|
925 |
r->modEnvToPitch = pGlobalRegion->modEnvToPitch; |
926 |
r->modLfoToPitch = pGlobalRegion->modLfoToPitch; |
927 |
r->modEnvToFilterFc = pGlobalRegion->modEnvToFilterFc; |
928 |
r->modLfoToFilterFc = pGlobalRegion->modLfoToFilterFc; |
929 |
r->modLfoToVolume = pGlobalRegion->modLfoToVolume; |
930 |
r->freqModLfo = pGlobalRegion->freqModLfo; |
931 |
r->delayModLfo = pGlobalRegion->delayModLfo; |
932 |
r->vibLfoToPitch = pGlobalRegion->vibLfoToPitch; |
933 |
r->freqVibLfo = pGlobalRegion->freqVibLfo; |
934 |
r->delayVibLfo = pGlobalRegion->delayVibLfo; |
935 |
r->initialFilterFc = pGlobalRegion->initialFilterFc; |
936 |
r->initialFilterQ = pGlobalRegion->initialFilterQ; |
937 |
} |
938 |
|
939 |
return r; |
940 |
} |
941 |
|
942 |
void Preset::LoadRegions(int idx1, int idx2) { |
943 |
for (int i = idx1; i < idx2; i++) { |
944 |
int gIdx1 = pFile->PresetBags[i].GenNdx; |
945 |
int gIdx2 = pFile->PresetBags[i + 1].GenNdx; |
946 |
|
947 |
if (gIdx1 < 0 || gIdx2 < 0 || gIdx1 > gIdx2 || gIdx2 >= pFile->PresetGenLists.size()) { |
948 |
throw Exception("Broken SF2 file (invalid PresetGenNdx)"); |
949 |
} |
950 |
|
951 |
Region* reg = CreateRegion(); |
952 |
|
953 |
for (int j = gIdx1; j < gIdx2; j++) { |
954 |
reg->SetGenerator(pFile, pFile->PresetGenLists[j]); |
955 |
} |
956 |
if (reg->pInstrument == NULL) { |
957 |
if (i == idx1 && idx2 - idx1 > 1) { |
958 |
pGlobalRegion = reg; // global zone |
959 |
} else { |
960 |
std::cerr << "Ignoring preset's region without instrument" << std::endl; |
961 |
delete reg; |
962 |
} |
963 |
} else { |
964 |
regions.push_back(reg); |
965 |
} |
966 |
} |
967 |
} |
968 |
|
969 |
/** @brief Constructor. |
970 |
* |
971 |
* Load an existing SF2 file. |
972 |
* |
973 |
* @param pRIFF - pointer to a RIFF file which is actually the SF2 file |
974 |
* to load |
975 |
* @throws Exception if given file is not a SF2 file, expected chunks |
976 |
* are missing |
977 |
*/ |
978 |
File::File(RIFF::File* pRIFF) { |
979 |
if (!pRIFF) throw Exception("NULL pointer reference to RIFF::File object."); |
980 |
this->pRIFF = pRIFF; |
981 |
|
982 |
if (pRIFF->GetListType() != RIFF_TYPE_SF2) { |
983 |
throw Exception("Not a SF2 file"); |
984 |
} |
985 |
|
986 |
pInfo = new Info(pRIFF); |
987 |
if (pInfo->pVer->Major != 2) { |
988 |
throw Exception("Unsupported version: " + ToString(pInfo->pVer->Major)); |
989 |
} |
990 |
|
991 |
RIFF::List* lstSDTA = pRIFF->GetSubList(LIST_TYPE_SDTA); |
992 |
if (lstSDTA == NULL) { |
993 |
throw Exception("Broken SF2 file (missing sdta)"); |
994 |
} |
995 |
|
996 |
RIFF::Chunk* pCkSmpl = lstSDTA->GetSubChunk(CHUNK_ID_SMPL); |
997 |
RIFF::Chunk* pCkSm24 = lstSDTA->GetSubChunk(CHUNK_ID_SM24); |
998 |
if (pCkSmpl != NULL && pCkSm24 != NULL) { |
999 |
long l = pCkSmpl->GetSize() / 2; |
1000 |
if (l%2) l++; |
1001 |
if (pCkSm24->GetSize() != l) { |
1002 |
pCkSm24 = NULL; // ignoring sm24 due to invalid size |
1003 |
} |
1004 |
} |
1005 |
|
1006 |
RIFF::List* lstPDTA = pRIFF->GetSubList(LIST_TYPE_PDTA); |
1007 |
if (lstPDTA == NULL) { |
1008 |
throw Exception("Broken SF2 file (missing pdta)"); |
1009 |
} |
1010 |
|
1011 |
RIFF::Chunk* ck = lstPDTA->GetSubChunk(CHUNK_ID_PHDR); |
1012 |
if (ck->GetSize() < 38) { |
1013 |
throw Exception("Broken SF2 file (broken phdr)"); |
1014 |
} |
1015 |
|
1016 |
int count = (int) ck->GetSize() / 38; |
1017 |
for (int i = 0; i < count; i++) { |
1018 |
Presets.push_back(new Preset(this, ck)); |
1019 |
} |
1020 |
|
1021 |
ck = GetMandatoryChunk(lstPDTA, CHUNK_ID_PBAG); |
1022 |
if (ck->GetSize() < 4 || (ck->GetSize() % 4)) { |
1023 |
throw Exception("Broken SF2 file (broken pbag)"); |
1024 |
} |
1025 |
|
1026 |
count = int(ck->GetSize() / 4); |
1027 |
for (int i = 0; i < count; i++) { |
1028 |
PresetBag pb; |
1029 |
pb.GenNdx = ck->ReadInt16(); |
1030 |
pb.ModNdx = ck->ReadInt16(); |
1031 |
PresetBags.push_back(pb); |
1032 |
} |
1033 |
//std::cout << "Preset bags: " << PresetBags.size() << std::endl; |
1034 |
|
1035 |
ck = GetMandatoryChunk(lstPDTA, CHUNK_ID_PMOD); |
1036 |
if (ck->GetSize() % 10) { |
1037 |
throw Exception("Broken SF2 file (broken pmod)"); |
1038 |
} |
1039 |
|
1040 |
count = int(ck->GetSize() / 10); |
1041 |
for (int i = 0; i < count; i++) { |
1042 |
ModList ml; |
1043 |
ml.ModSrcOper = ck->ReadInt16(); |
1044 |
ml.ModDestOper = ck->ReadInt16(); |
1045 |
ml.ModAmount = ck->ReadInt16(); |
1046 |
ml.ModAmtSrcOper = ck->ReadInt16(); |
1047 |
ml.ModTransOper = ck->ReadInt16(); |
1048 |
PresetModLists.push_back(ml); |
1049 |
} |
1050 |
//std::cout << "Preset mod lists: " << PresetModLists.size() << std::endl; |
1051 |
|
1052 |
ck = GetMandatoryChunk(lstPDTA, CHUNK_ID_PGEN); |
1053 |
if (ck->GetSize() < 4 || (ck->GetSize() % 4)) { |
1054 |
throw Exception("Broken SF2 file (broken pgen)"); |
1055 |
} |
1056 |
|
1057 |
count = int(ck->GetSize() / 4); |
1058 |
for (int i = 0; i < count; i++) { |
1059 |
GenList gl; |
1060 |
gl.GenOper = ck->ReadInt16(); |
1061 |
gl.GenAmount.wAmount = ck->ReadInt16(); |
1062 |
PresetGenLists.push_back(gl); |
1063 |
} |
1064 |
//std::cout << "Preset gen lists: " << PresetGenLists.size() << std::endl; |
1065 |
|
1066 |
ck = GetMandatoryChunk(lstPDTA, CHUNK_ID_INST); |
1067 |
if (ck->GetSize() < (22 * 2) || (ck->GetSize() % 22)) { |
1068 |
throw Exception("Broken SF2 file (broken inst)"); |
1069 |
} |
1070 |
count = int(ck->GetSize() / 22); |
1071 |
for (int i = 0; i < count; i++) { |
1072 |
Instruments.push_back(new Instrument(this, ck)); |
1073 |
} |
1074 |
|
1075 |
ck = GetMandatoryChunk(lstPDTA, CHUNK_ID_IBAG); |
1076 |
if (ck->GetSize() < 4 || (ck->GetSize() % 4)) { |
1077 |
throw Exception("Broken SF2 file (broken ibag)"); |
1078 |
} |
1079 |
|
1080 |
count = int(ck->GetSize() / 4); |
1081 |
for (int i = 0; i < count; i++) { |
1082 |
InstBag ib; |
1083 |
ib.InstGenNdx = ck->ReadInt16(); |
1084 |
ib.InstModNdx = ck->ReadInt16(); |
1085 |
InstBags.push_back(ib); |
1086 |
} |
1087 |
//std::cout << "Instrument bags: " << InstBags.size() << std::endl; |
1088 |
|
1089 |
ck = GetMandatoryChunk(lstPDTA, CHUNK_ID_IMOD); |
1090 |
if (ck->GetSize() % 10) { |
1091 |
throw Exception("Broken SF2 file (broken imod)"); |
1092 |
} |
1093 |
|
1094 |
count = int(ck->GetSize() / 10); |
1095 |
for (int i = 0; i < count; i++) { |
1096 |
ModList ml; |
1097 |
ml.ModSrcOper = ck->ReadInt16(); |
1098 |
ml.ModDestOper = ck->ReadInt16(); |
1099 |
ml.ModAmount = ck->ReadInt16(); |
1100 |
ml.ModAmtSrcOper = ck->ReadInt16(); |
1101 |
ml.ModTransOper = ck->ReadInt16(); |
1102 |
InstModLists.push_back(ml); |
1103 |
} |
1104 |
//std::cout << "Instrument mod lists: " << InstModLists.size() << std::endl; |
1105 |
|
1106 |
ck = GetMandatoryChunk(lstPDTA, CHUNK_ID_IGEN); |
1107 |
if (ck->GetSize() < 4 || (ck->GetSize() % 4)) { |
1108 |
throw Exception("Broken SF2 file (broken igen)"); |
1109 |
} |
1110 |
|
1111 |
count = int(ck->GetSize() / 4); |
1112 |
for (int i = 0; i < count; i++) { |
1113 |
GenList gl; |
1114 |
gl.GenOper = ck->ReadInt16(); |
1115 |
gl.GenAmount.wAmount = ck->ReadInt16(); |
1116 |
InstGenLists.push_back(gl); |
1117 |
} |
1118 |
//std::cout << "Instrument gen lists: " << InstGenLists.size() << std::endl; |
1119 |
|
1120 |
ck = GetMandatoryChunk(lstPDTA, CHUNK_ID_SHDR); |
1121 |
if ((ck->GetSize() % 46)) { |
1122 |
throw Exception("Broken SF2 file (broken shdr)"); |
1123 |
} |
1124 |
count = int(ck->GetSize() / 46); |
1125 |
for (int i = 0; i < count; i++) { |
1126 |
Samples.push_back(new Sample(this, ck, pCkSmpl, pCkSm24)); |
1127 |
} |
1128 |
|
1129 |
// Loading instrument regions |
1130 |
for (int i = 0; i < Instruments.size() - 1; i++) { |
1131 |
Instrument* instr = Instruments[i]; |
1132 |
int x1 = instr->InstBagNdx; |
1133 |
int x2 = Instruments[i + 1]->InstBagNdx; |
1134 |
if (x1 < 0 || x2 < 0 || x1 > x2 || x2 >= InstBags.size()) { |
1135 |
throw Exception("Broken SF2 file (invalid InstBagNdx)"); |
1136 |
} |
1137 |
|
1138 |
instr->LoadRegions(x1, x2); |
1139 |
} |
1140 |
|
1141 |
// Loading preset regions |
1142 |
for (int i = 0; i < Presets.size() - 1; i++) { |
1143 |
Preset* preset = Presets[i]; |
1144 |
int x1 = preset->PresetBagNdx; |
1145 |
int x2 = Presets[i + 1]->PresetBagNdx; |
1146 |
if (x1 < 0 || x2 < 0 || x1 > x2 || x2 >= PresetBags.size()) { |
1147 |
throw Exception("Broken SF2 file (invalid PresetBagNdx)"); |
1148 |
} |
1149 |
|
1150 |
preset->LoadRegions(x1, x2); |
1151 |
} |
1152 |
} |
1153 |
|
1154 |
File::~File() { |
1155 |
delete pInfo; |
1156 |
for (ssize_t i = Presets.size() - 1; i >= 0; i--) { |
1157 |
if (Presets[i]) delete (Presets[i]); |
1158 |
} |
1159 |
for (ssize_t i = Instruments.size() - 1; i >= 0; i--) { |
1160 |
if (Instruments[i]) delete (Instruments[i]); |
1161 |
} |
1162 |
for (ssize_t i = Samples.size() - 1; i >= 0; i--) { |
1163 |
if (Samples[i]) delete (Samples[i]); |
1164 |
} |
1165 |
} |
1166 |
|
1167 |
int File::GetPresetCount() { |
1168 |
return (int) Presets.size() - 1; // exclude terminal preset (EOP) |
1169 |
} |
1170 |
|
1171 |
Preset* File::GetPreset(int idx) { |
1172 |
if (idx < 0 || idx >= GetPresetCount()) { |
1173 |
throw Exception("Preset index out of bounds"); |
1174 |
} |
1175 |
|
1176 |
return Presets[idx]; |
1177 |
} |
1178 |
|
1179 |
int File::GetInstrumentCount() { |
1180 |
return (int) Instruments.size() - 1; // exclude terminal instrument (EOI) |
1181 |
} |
1182 |
|
1183 |
Instrument* File::GetInstrument(int idx) { |
1184 |
if (idx < 0 || idx >= GetInstrumentCount()) { |
1185 |
throw Exception("Instrument index out of bounds"); |
1186 |
} |
1187 |
|
1188 |
return Instruments[idx]; |
1189 |
} |
1190 |
|
1191 |
void File::DeleteInstrument(Instrument* pInstrument) { |
1192 |
for (int i = 0; i < GetPresetCount(); i++) { |
1193 |
Preset* p = GetPreset(i); |
1194 |
if (p == NULL) continue; |
1195 |
for (int j = p->GetRegionCount() - 1; j >= 0 ; j--) { |
1196 |
if (p->GetRegion(j) && p->GetRegion(j)->pInstrument == pInstrument) { |
1197 |
p->GetRegion(j)->pInstrument = NULL; |
1198 |
} |
1199 |
} |
1200 |
} |
1201 |
|
1202 |
for (int i = 0; i < GetInstrumentCount(); i++) { |
1203 |
if (GetInstrument(i) == pInstrument) { |
1204 |
Instruments[i] = NULL; |
1205 |
delete pInstrument; |
1206 |
} |
1207 |
} |
1208 |
} |
1209 |
|
1210 |
int File::GetSampleCount() { |
1211 |
return (int) Samples.size() - 1; // exclude terminal sample (EOS) |
1212 |
} |
1213 |
|
1214 |
Sample* File::GetSample(int idx) { |
1215 |
if (idx < 0 || idx >= GetSampleCount()) { |
1216 |
throw Exception("Sample index out of bounds"); |
1217 |
} |
1218 |
|
1219 |
return Samples[idx]; |
1220 |
} |
1221 |
|
1222 |
void File::DeleteSample(Sample* pSample) { |
1223 |
// Sanity check |
1224 |
for (int i = GetInstrumentCount() - 1; i >= 0; i--) { |
1225 |
Instrument* pInstr = GetInstrument(i); |
1226 |
if (pInstr == NULL) continue; |
1227 |
|
1228 |
for (int j = pInstr->GetRegionCount() - 1; j >= 0 ; j--) { |
1229 |
if (pInstr->GetRegion(j) && pInstr->GetRegion(j)->GetSample() == pSample) { |
1230 |
std::cerr << "Deleting sample which is still in use" << std::endl; |
1231 |
} |
1232 |
} |
1233 |
} |
1234 |
/////// |
1235 |
|
1236 |
for (int i = 0; i < GetSampleCount(); i++) { |
1237 |
if (Samples[i] == pSample) { |
1238 |
delete pSample; |
1239 |
Samples[i] = NULL; |
1240 |
return; |
1241 |
} |
1242 |
} |
1243 |
|
1244 |
throw Exception("Unknown sample: " + pSample->Name); |
1245 |
} |
1246 |
|
1247 |
bool File::HasSamples() { |
1248 |
for (int i = 0; i < GetSampleCount(); i++) { |
1249 |
if (Samples[i] != NULL) return true; |
1250 |
} |
1251 |
|
1252 |
return false; |
1253 |
} |
1254 |
|
1255 |
RIFF::File* File::GetRiffFile() { |
1256 |
return pRIFF; |
1257 |
} |
1258 |
|
1259 |
/** |
1260 |
* Loads the whole sample wave into RAM. Use |
1261 |
* ReleaseSampleData() to free the memory if you don't need the cached |
1262 |
* sample data anymore. |
1263 |
* |
1264 |
* @returns buffer_t structure with start address and size of the buffer |
1265 |
* in bytes |
1266 |
* @see ReleaseSampleData(), Read(), SetPos() |
1267 |
*/ |
1268 |
Sample::buffer_t Sample::LoadSampleData() { |
1269 |
return LoadSampleDataWithNullSamplesExtension(GetTotalFrameCount(), 0); // 0 amount of NullSamples |
1270 |
} |
1271 |
|
1272 |
/** |
1273 |
* Reads and caches the first \a SampleCount |
1274 |
* numbers of SamplePoints in RAM. Use ReleaseSampleData() to free the |
1275 |
* memory space if you don't need the cached samples anymore. |
1276 |
* Read the <i>Size</i> member of the <i>buffer_t</i> structure |
1277 |
* that will be returned to determine the actual cached samples, but note |
1278 |
* that the size is given in bytes! You get the number of actually cached |
1279 |
* samples by dividing it by the frame size of the sample: |
1280 |
* @code |
1281 |
* buffer_t buf = pSample->LoadSampleData(acquired_samples); |
1282 |
* long cachedsamples = buf.Size / pSample->FrameSize; |
1283 |
* @endcode |
1284 |
* |
1285 |
* @param SampleCount - number of sample points to load into RAM |
1286 |
* @returns buffer_t structure with start address and size of |
1287 |
* the cached sample data in bytes |
1288 |
* @see ReleaseSampleData(), Read(), SetPos() |
1289 |
*/ |
1290 |
Sample::buffer_t Sample::LoadSampleData(unsigned long SampleCount) { |
1291 |
return LoadSampleDataWithNullSamplesExtension(SampleCount, 0); // 0 amount of NullSamples |
1292 |
} |
1293 |
|
1294 |
/** |
1295 |
* Loads the whole sample wave into RAM. Use |
1296 |
* ReleaseSampleData() to free the memory if you don't need the cached |
1297 |
* sample data anymore. |
1298 |
* The method will add \a NullSamplesCount silence samples past the |
1299 |
* official buffer end (this won't affect the 'Size' member of the |
1300 |
* buffer_t structure, that means 'Size' always reflects the size of the |
1301 |
* actual sample data, the buffer might be bigger though). Silence |
1302 |
* samples past the official buffer are needed for differential |
1303 |
* algorithms that always have to take subsequent samples into account |
1304 |
* (resampling/interpolation would be an important example) and avoids |
1305 |
* memory access faults in such cases. |
1306 |
* |
1307 |
* @param NullSamplesCount - number of silence samples the buffer should |
1308 |
* be extended past it's data end |
1309 |
* @returns buffer_t structure with start address and |
1310 |
* size of the buffer in bytes |
1311 |
* @see ReleaseSampleData(), Read(), SetPos() |
1312 |
*/ |
1313 |
Sample::buffer_t Sample::LoadSampleDataWithNullSamplesExtension(uint NullSamplesCount) { |
1314 |
return LoadSampleDataWithNullSamplesExtension(GetTotalFrameCount(), NullSamplesCount); |
1315 |
} |
1316 |
|
1317 |
/** |
1318 |
* Reads and caches the first \a SampleCount |
1319 |
* numbers of SamplePoints in RAM. Use ReleaseSampleData() to free the |
1320 |
* memory space if you don't need the cached samples anymore. |
1321 |
* Read the <i>Size</i> member of the <i>buffer_t</i> structure |
1322 |
* that will be returned to determine the actual cached samples, but note |
1323 |
* that the size is given in bytes! You get the number of actually cached |
1324 |
* samples by dividing it by the frame size of the sample: |
1325 |
* @code |
1326 |
* buffer_t buf = pSample->LoadSampleDataWithNullSamplesExtension(acquired_samples, null_samples); |
1327 |
* long cachedsamples = buf.Size / pSample->FrameSize; |
1328 |
* @endcode |
1329 |
* The method will add \a NullSamplesCount silence samples past the |
1330 |
* official buffer end (this won't affect the 'Size' member of the |
1331 |
* buffer_t structure, that means 'Size' always reflects the size of the |
1332 |
* actual sample data, the buffer might be bigger though). Silence |
1333 |
* samples past the official buffer are needed for differential |
1334 |
* algorithms that always have to take subsequent samples into account |
1335 |
* (resampling/interpolation would be an important example) and avoids |
1336 |
* memory access faults in such cases. |
1337 |
* |
1338 |
* @param SampleCount - number of sample points to load into RAM |
1339 |
* @param NullSamplesCount - number of silence samples the buffer should |
1340 |
* be extended past it's data end |
1341 |
* @returns buffer_t structure with start address and |
1342 |
* size of the cached sample data in bytes |
1343 |
* @see ReleaseSampleData(), Read(), SetPos() |
1344 |
*/ |
1345 |
Sample::buffer_t Sample::LoadSampleDataWithNullSamplesExtension(unsigned long SampleCount, uint NullSamplesCount) { |
1346 |
if (SampleCount > GetTotalFrameCount()) SampleCount = GetTotalFrameCount(); |
1347 |
if (RAMCache.pStart) delete[] (int8_t*) RAMCache.pStart; |
1348 |
unsigned long allocationsize = (SampleCount + NullSamplesCount) * GetFrameSize(); |
1349 |
SetPos(0); // reset read position to begin of sample |
1350 |
RAMCache.pStart = new int8_t[allocationsize]; |
1351 |
RAMCache.Size = Read(RAMCache.pStart, SampleCount) * GetFrameSize(); |
1352 |
RAMCache.NullExtensionSize = allocationsize - RAMCache.Size; |
1353 |
// fill the remaining buffer space with silence samples |
1354 |
memset((int8_t*)RAMCache.pStart + RAMCache.Size, 0, RAMCache.NullExtensionSize); |
1355 |
return GetCache(); |
1356 |
} |
1357 |
|
1358 |
/** |
1359 |
* Returns current cached sample points. A buffer_t structure will be |
1360 |
* returned which contains address pointer to the begin of the cache and |
1361 |
* the size of the cached sample data in bytes. Use |
1362 |
* <i>LoadSampleData()</i> to cache a specific amount of sample points in |
1363 |
* RAM. |
1364 |
* |
1365 |
* @returns buffer_t structure with current cached sample points |
1366 |
* @see LoadSampleData(); |
1367 |
*/ |
1368 |
Sample::buffer_t Sample::GetCache() { |
1369 |
// return a copy of the buffer_t structure |
1370 |
buffer_t result; |
1371 |
result.Size = this->RAMCache.Size; |
1372 |
result.pStart = this->RAMCache.pStart; |
1373 |
result.NullExtensionSize = this->RAMCache.NullExtensionSize; |
1374 |
return result; |
1375 |
} |
1376 |
|
1377 |
/** |
1378 |
* Frees the cached sample from RAM if loaded with |
1379 |
* <i>LoadSampleData()</i> previously. |
1380 |
* |
1381 |
* @see LoadSampleData(); |
1382 |
*/ |
1383 |
void Sample::ReleaseSampleData() { |
1384 |
if (RAMCache.pStart) delete[] (int8_t*) RAMCache.pStart; |
1385 |
RAMCache.pStart = NULL; |
1386 |
RAMCache.Size = 0; |
1387 |
RAMCache.NullExtensionSize = 0; |
1388 |
} |
1389 |
|
1390 |
/** |
1391 |
* Sets the position within the sample (in sample points, not in |
1392 |
* bytes). Use this method and <i>Read()</i> if you don't want to load |
1393 |
* the sample into RAM, thus for disk streaming. |
1394 |
* |
1395 |
* @param SampleCount number of sample points to jump |
1396 |
* @returns the new sample position |
1397 |
* @see Read() |
1398 |
*/ |
1399 |
unsigned long Sample::SetPos(unsigned long SampleCount) { |
1400 |
pCkSmpl->SetPos((Start * 2) + (SampleCount * 2), RIFF::stream_start); |
1401 |
if(pCkSm24) pCkSm24->SetPos(Start + SampleCount, RIFF::stream_start); |
1402 |
return SampleCount; |
1403 |
} |
1404 |
|
1405 |
/** |
1406 |
* Returns the current position in the sample (in sample points). |
1407 |
*/ |
1408 |
unsigned long Sample::GetPos() { |
1409 |
return (pCkSmpl->GetPos() - (Start * 2)) / 2; |
1410 |
} |
1411 |
|
1412 |
// Actual implementation of Sample::Read*() code. Wrapped into a template for a) runtime effeciency and b) code redundancy reasons. |
1413 |
template<bool CLEAR> |
1414 |
inline unsigned long ReadSample(Sample* pSample, void* pBuffer, unsigned long SampleCount, Sample::buffer_t* tempBuffer = NULL) { |
1415 |
// TODO: startAddrsCoarseOffset, endAddrsCoarseOffset |
1416 |
if (SampleCount == 0) return 0; |
1417 |
long pos = pSample->GetPos(); |
1418 |
if (pos + SampleCount > pSample->GetTotalFrameCount()) |
1419 |
SampleCount = pSample->GetTotalFrameCount() - pos; |
1420 |
if (!CLEAR) { |
1421 |
if (tempBuffer->Size < SampleCount * pSample->GetFrameSize()) { |
1422 |
std::cerr << "sf2::Sample error: tempBuffer too small. This is a BUG!" << std::endl; |
1423 |
return 0; |
1424 |
} |
1425 |
} |
1426 |
|
1427 |
if (pSample->GetFrameSize() / pSample->GetChannelCount() == 3 /* 24 bit */) { |
1428 |
uint8_t* const pTmpBuf = (uint8_t*) ((CLEAR) ? pBuffer : tempBuffer->pStart); |
1429 |
uint8_t* const pBuf = (uint8_t*)pBuffer; |
1430 |
if (pSample->SampleType == Sample::MONO_SAMPLE || pSample->SampleType == Sample::ROM_MONO_SAMPLE) { |
1431 |
pSample->pCkSmpl->Read(pTmpBuf, SampleCount, 2); |
1432 |
pSample->pCkSm24->Read(pTmpBuf + SampleCount * 2, SampleCount, 1); |
1433 |
for (long i = SampleCount - 1; i >= 0; i--) { |
1434 |
pBuf[i*3] = pTmpBuf[(SampleCount * 2) + i]; |
1435 |
pBuf[i*3 + 2] = pTmpBuf[i*2 + 1]; |
1436 |
pBuf[i*3 + 1] = pTmpBuf[i*2]; |
1437 |
} |
1438 |
} else if (pSample->SampleType == Sample::LEFT_SAMPLE || pSample->SampleType == Sample::ROM_LEFT_SAMPLE) { |
1439 |
pSample->pCkSmpl->Read(pTmpBuf, SampleCount, 2); |
1440 |
pSample->pCkSm24->Read(pTmpBuf + SampleCount * 2, SampleCount, 1); |
1441 |
for (long i = SampleCount - 1; i >= 0; i--) { |
1442 |
pBuf[i*6] = pTmpBuf[(SampleCount * 2) + i]; |
1443 |
pBuf[i*6 + 2] = pTmpBuf[i*2 + 1]; |
1444 |
pBuf[i*6 + 1] = pTmpBuf[i*2]; |
1445 |
if (CLEAR) |
1446 |
pBuf[i*6 + 3] = pBuf[i*6 + 4] = pBuf[i*6 + 5] = 0; |
1447 |
} |
1448 |
} else if (pSample->SampleType == Sample::RIGHT_SAMPLE || pSample->SampleType == Sample::ROM_RIGHT_SAMPLE) { |
1449 |
pSample->pCkSmpl->Read(pTmpBuf, SampleCount, 2); |
1450 |
pSample->pCkSm24->Read(pTmpBuf + SampleCount * 2, SampleCount, 1); |
1451 |
for (long i = SampleCount - 1; i >= 0; i--) { |
1452 |
pBuf[i*6 + 3] = pTmpBuf[(SampleCount * 2) + i]; |
1453 |
pBuf[i*6 + 5] = pTmpBuf[i*2 + 1]; |
1454 |
pBuf[i*6 + 4] = pTmpBuf[i*2]; |
1455 |
if (CLEAR) |
1456 |
pBuf[i*6] = pBuf[i*6 + 1] = pBuf[i*6 + 2] = 0; |
1457 |
} |
1458 |
} |
1459 |
} else { |
1460 |
if (pSample->SampleType == Sample::MONO_SAMPLE || pSample->SampleType == Sample::ROM_MONO_SAMPLE) { |
1461 |
return pSample->pCkSmpl->Read(pBuffer, SampleCount, 2); |
1462 |
} |
1463 |
|
1464 |
int16_t* const pTmpBuf = (int16_t*) ((CLEAR) ? pBuffer : tempBuffer->pStart); |
1465 |
int16_t* const pBuf = (int16_t*) pBuffer; |
1466 |
if (pSample->SampleType == Sample::LEFT_SAMPLE || pSample->SampleType == Sample::ROM_LEFT_SAMPLE) { |
1467 |
pSample->pCkSmpl->Read(pTmpBuf, SampleCount, 2); |
1468 |
for (long i = SampleCount - 1; i >= 0; i--) { |
1469 |
pBuf[i*2] = pTmpBuf[i]; |
1470 |
if (CLEAR) |
1471 |
pBuf[i*2 + 1] = 0; |
1472 |
} |
1473 |
} else if (pSample->SampleType == Sample::RIGHT_SAMPLE || pSample->SampleType == Sample::ROM_RIGHT_SAMPLE) { |
1474 |
pSample->pCkSmpl->Read(pTmpBuf, SampleCount, 2); |
1475 |
for (long i = SampleCount - 1; i >= 0; i--) { |
1476 |
if (CLEAR) |
1477 |
pBuf[i*2] = 0; |
1478 |
pBuf[i*2 + 1] = pTmpBuf[i]; |
1479 |
} |
1480 |
} |
1481 |
} |
1482 |
|
1483 |
if (pSample->pCkSmpl->GetPos() > (pSample->End * 2)) { |
1484 |
std::cerr << "Read after the sample end. This is a BUG!" << std::endl; |
1485 |
std::cerr << "Current position: " << pSample->GetPos() << std::endl; |
1486 |
std::cerr << "Total number of frames: " << pSample->GetTotalFrameCount() << std::endl << std::endl; |
1487 |
} |
1488 |
return SampleCount; |
1489 |
} |
1490 |
|
1491 |
/** |
1492 |
* Reads \a SampleCount number of sample points from the current |
1493 |
* position into the buffer pointed by \a pBuffer and increments the |
1494 |
* position within the sample. Use this method |
1495 |
* and <i>SetPos()</i> if you don't want to load the sample into RAM, |
1496 |
* thus for disk streaming. |
1497 |
* |
1498 |
* For 16 bit samples, the data in the buffer will be int16_t |
1499 |
* (using native endianness). For 24 bit, the buffer will |
1500 |
* contain three bytes per sample, little-endian. |
1501 |
* |
1502 |
* Stereo Samples: stereo samples are stored as a pair of mono samples with |
1503 |
* SoundFont 2. Due to historical reasons, this Read() method expects |
1504 |
* @a pBuffer to be a stereo buffer, however only the audio channel covered |
1505 |
* by the sample data of this sample will be filled. The other audio channel |
1506 |
* of @a pBuffer will be set to zero. This is probably not what you want. |
1507 |
* So you might want to use ReadNoClear() instead. |
1508 |
* |
1509 |
* @param pBuffer destination buffer |
1510 |
* @param SampleCount number of sample points to read |
1511 |
* @returns number of successfully read sample points |
1512 |
* @see SetPos(), ReadNoClear() |
1513 |
*/ |
1514 |
unsigned long Sample::Read(void* pBuffer, unsigned long SampleCount) { |
1515 |
return ReadSample<true>(this, pBuffer, SampleCount); |
1516 |
} |
1517 |
|
1518 |
/** |
1519 |
* Reads \a SampleCount number of sample points from the current |
1520 |
* position into the buffer pointed by \a pBuffer and increments the |
1521 |
* position within the sample. Use this method |
1522 |
* and <i>SetPos()</i> if you don't want to load the sample into RAM, |
1523 |
* thus for disk streaming. |
1524 |
* |
1525 |
* For 16 bit samples, the data in the buffer will be int16_t |
1526 |
* (using native endianness). For 24 bit, the buffer will |
1527 |
* contain three bytes per sample, little-endian. |
1528 |
* |
1529 |
* Stereo Samples: stereo samples are stored as a pair of mono samples with |
1530 |
* SoundFont 2. This ReadNoClear() method expects @a pBuffer to be a stereo |
1531 |
* buffer, however only the audio channel covered by the sample data of this |
1532 |
* sample will be filled. The other audio channel |
1533 |
* of @a pBuffer will remain untouched. So you might pass the same |
1534 |
* @a pBuffer to the other, linked sample to actually get the interleaved |
1535 |
* stereo audio stream. To avoid destroying the other audio channel's data |
1536 |
* you must pass an external, tempoary working buffer @a tempBuffer, which |
1537 |
* should already be allocated to the size required to decode the requested |
1538 |
* length of sample data. That @a tempBuffer is only used by ReadNoClear() |
1539 |
* to fulfill its work, it does not contain any useful data after this |
1540 |
* method returned. |
1541 |
* |
1542 |
* @param pBuffer destination buffer |
1543 |
* @param SampleCount number of sample points to read |
1544 |
* @param tempBuffer temporary work buffer (must be pre-allocated large enough) |
1545 |
* @returns number of successfully read sample points |
1546 |
* @see SetPos(), Read() |
1547 |
*/ |
1548 |
unsigned long Sample::ReadNoClear(void* pBuffer, unsigned long SampleCount, buffer_t& tempBuffer) { |
1549 |
return ReadSample<false>(this, pBuffer, SampleCount, &tempBuffer); |
1550 |
} |
1551 |
|
1552 |
|
1553 |
// *************** functions *************** |
1554 |
// * |
1555 |
|
1556 |
/** |
1557 |
* Returns the name of this C++ library. |
1558 |
*/ |
1559 |
String libraryName() { |
1560 |
return PACKAGE; |
1561 |
} |
1562 |
|
1563 |
/** |
1564 |
* Returns version of this C++ library. |
1565 |
*/ |
1566 |
String libraryVersion() { |
1567 |
return VERSION; |
1568 |
} |
1569 |
|
1570 |
} // namespace sf2 |