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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(RIFF::Chunk* ck, RIFF::Chunk* pCkSmpl, RIFF::Chunk* pCkSm24) { |
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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: |
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initialFilterQ = Gen.GenAmount.wAmount; |
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CheckRange("initialFilterQ", 0, 960, initialFilterQ); |
| 357 |
break; |
| 358 |
case MOD_LFO_TO_FILTER_FC: |
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modLfoToFilterFc = Gen.GenAmount.shAmount; |
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CheckRange("modLfoToFilterFc", -12000, 12000, modLfoToFilterFc); |
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break; |
| 362 |
case MOD_ENV_TO_FILTER_FC: |
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modEnvToFilterFc = Gen.GenAmount.shAmount; |
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CheckRange("modEnvToFilterFc", -12000, 12000, modEnvToFilterFc); |
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break; |
| 366 |
case END_ADDRS_COARSE_OFFSET: |
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endAddrsCoarseOffset = Gen.GenAmount.wAmount; |
| 368 |
break; |
| 369 |
case MOD_LFO_TO_VOLUME: |
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modLfoToVolume = Gen.GenAmount.shAmount; |
| 371 |
CheckRange("modLfoToVolume", -960, 960, modLfoToVolume); |
| 372 |
break; |
| 373 |
case CHORUS_EFFECTS_SEND: |
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break; |
| 375 |
case REVERB_EFFECTS_SEND: |
| 376 |
break; |
| 377 |
case PAN: |
| 378 |
pan = Gen.GenAmount.shAmount; |
| 379 |
CheckRange("pan", -500, 500, pan); |
| 380 |
pan = pan * 64 / 500; |
| 381 |
if (pan > 63) pan = 63; |
| 382 |
break; |
| 383 |
case DELAY_MOD_LFO: |
| 384 |
delayModLfo = Gen.GenAmount.shAmount; |
| 385 |
CheckRange("delayModLfo", -12000, 5000, delayModLfo); |
| 386 |
break; |
| 387 |
case FREQ_MOD_LFO: |
| 388 |
freqModLfo = Gen.GenAmount.shAmount; |
| 389 |
CheckRange("freqModLfo", -16000, 4500, freqModLfo); |
| 390 |
break; |
| 391 |
case DELAY_VIB_LFO: |
| 392 |
delayVibLfo = Gen.GenAmount.shAmount; |
| 393 |
CheckRange("delayVibLfo", -12000, 5000, delayVibLfo); |
| 394 |
break; |
| 395 |
case FREQ_VIB_LFO: |
| 396 |
freqVibLfo = Gen.GenAmount.shAmount; |
| 397 |
CheckRange("freqModLfo", -16000, 4500, freqModLfo); |
| 398 |
break; |
| 399 |
case DELAY_MOD_ENV: |
| 400 |
EG2PreAttackDelay = Gen.GenAmount.shAmount; |
| 401 |
CheckRange("delayModEnv", -12000, 5000, EG2PreAttackDelay); |
| 402 |
break; |
| 403 |
case ATTACK_MOD_ENV: |
| 404 |
EG2Attack = Gen.GenAmount.shAmount; |
| 405 |
CheckRange("attackModEnv", -12000, 8000, EG2Attack); |
| 406 |
break; |
| 407 |
case HOLD_MOD_ENV: |
| 408 |
EG2Hold = Gen.GenAmount.shAmount; |
| 409 |
CheckRange("holdModEnv", -12000, 5000, EG2Hold); |
| 410 |
break; |
| 411 |
case DECAY_MOD_ENV: |
| 412 |
EG2Decay = Gen.GenAmount.shAmount; |
| 413 |
CheckRange("decayModEnv", -12000, 8000, EG2Decay); |
| 414 |
break; |
| 415 |
case SUSTAIN_MOD_ENV: |
| 416 |
EG2Sustain = Gen.GenAmount.shAmount; |
| 417 |
CheckRange("sustainModEnv", 0, 1000, EG2Sustain); |
| 418 |
break; |
| 419 |
case RELEASE_MOD_ENV: |
| 420 |
EG2Release = Gen.GenAmount.shAmount; |
| 421 |
CheckRange("releaseModEnv", -12000, 8000, EG2Release); |
| 422 |
break; |
| 423 |
case KEYNUM_TO_MOD_ENV_HOLD: |
| 424 |
break; |
| 425 |
case KEYNUM_TO_MOD_ENV_DECAY: |
| 426 |
break; |
| 427 |
case DELAY_VOL_ENV: |
| 428 |
EG1PreAttackDelay = Gen.GenAmount.shAmount; |
| 429 |
CheckRange("delayVolEnv", -12000, 5000, EG1PreAttackDelay); |
| 430 |
break; |
| 431 |
case ATTACK_VOL_ENV: |
| 432 |
EG1Attack = Gen.GenAmount.shAmount; |
| 433 |
CheckRange("attackVolEnv", -12000, 8000, EG1Attack); |
| 434 |
break; |
| 435 |
case HOLD_VOL_ENV: |
| 436 |
EG1Hold = Gen.GenAmount.shAmount; |
| 437 |
CheckRange("holdVolEnv", -12000, 5000, EG1Hold); |
| 438 |
break; |
| 439 |
case DECAY_VOL_ENV: |
| 440 |
EG1Decay = Gen.GenAmount.shAmount; |
| 441 |
CheckRange("decayVolEnv", -12000, 8000, EG1Decay); |
| 442 |
break; |
| 443 |
case SUSTAIN_VOL_ENV: |
| 444 |
EG1Sustain = Gen.GenAmount.shAmount; |
| 445 |
CheckRange("sustainVolEnv", 0, 1440, EG1Sustain); |
| 446 |
break; |
| 447 |
case RELEASE_VOL_ENV: |
| 448 |
EG1Release = Gen.GenAmount.shAmount; |
| 449 |
CheckRange("releaseVolEnv", -12000, 8000, EG1Release); |
| 450 |
break; |
| 451 |
case KEYNUM_TO_VOL_ENV_HOLD: |
| 452 |
break; |
| 453 |
case KEYNUM_TO_VOL_ENV_DECAY: |
| 454 |
break; |
| 455 |
case INSTRUMENT: { |
| 456 |
uint16_t id = Gen.GenAmount.wAmount; |
| 457 |
if (id >= pFile->Instruments.size()) { |
| 458 |
throw Exception("Broken SF2 file (missing instruments)"); |
| 459 |
} |
| 460 |
pInstrument = pFile->Instruments[id]; |
| 461 |
break; |
| 462 |
} |
| 463 |
case KEY_RANGE: |
| 464 |
loKey = Gen.GenAmount.ranges.byLo; |
| 465 |
CheckRange("loKey", 0, 127, loKey); |
| 466 |
hiKey = Gen.GenAmount.ranges.byHi; |
| 467 |
CheckRange("hiKey", 0, 127, hiKey); |
| 468 |
break; |
| 469 |
case VEL_RANGE: |
| 470 |
minVel = Gen.GenAmount.ranges.byLo; |
| 471 |
CheckRange("minVel", 0, 127, minVel); |
| 472 |
maxVel = Gen.GenAmount.ranges.byHi; |
| 473 |
CheckRange("maxVel", 0, 127, maxVel); |
| 474 |
break; |
| 475 |
case STARTLOOP_ADDRS_COARSE_OFFSET: |
| 476 |
startloopAddrsCoarseOffset = Gen.GenAmount.wAmount; |
| 477 |
LoopStart += startloopAddrsCoarseOffset * 32768; |
| 478 |
break; |
| 479 |
case KEYNUM: |
| 480 |
break; |
| 481 |
case VELOCITY: |
| 482 |
break; |
| 483 |
case INITIAL_ATTENUATION: |
| 484 |
break; |
| 485 |
case ENDLOOP_ADDRS_COARSE_OFFSET: |
| 486 |
endloopAddrsCoarseOffset = Gen.GenAmount.wAmount; |
| 487 |
LoopEnd += endloopAddrsCoarseOffset * 32768; |
| 488 |
break; |
| 489 |
case COARSE_TUNE: |
| 490 |
coarseTune = Gen.GenAmount.shAmount; |
| 491 |
CheckRange("coarseTune", -120, 120, coarseTune); |
| 492 |
break; |
| 493 |
case FINE_TUNE: |
| 494 |
fineTune = Gen.GenAmount.shAmount; |
| 495 |
CheckRange("fineTune", -99, 99, fineTune); |
| 496 |
break; |
| 497 |
case SAMPLE_ID: { |
| 498 |
uint16_t sid = Gen.GenAmount.wAmount; |
| 499 |
if (sid >= pFile->Samples.size()) { |
| 500 |
throw Exception("Broken SF2 file (missing samples)"); |
| 501 |
} |
| 502 |
pSample = pFile->Samples[sid]; |
| 503 |
|
| 504 |
if (HasLoop) { |
| 505 |
LoopStart += pSample->StartLoop; |
| 506 |
LoopEnd += pSample->EndLoop; |
| 507 |
if ( LoopStart < pSample->Start || LoopStart > pSample->End || |
| 508 |
LoopStart > LoopEnd || LoopEnd > pSample->End ) { |
| 509 |
throw Exception("Broken SF2 file (invalid loops)"); |
| 510 |
} |
| 511 |
LoopStart -= pSample->Start; // Relative to the sample start |
| 512 |
LoopEnd -= pSample->Start; // Relative to the sample start |
| 513 |
} |
| 514 |
break; |
| 515 |
} |
| 516 |
case SAMPLE_MODES: |
| 517 |
HasLoop = Gen.GenAmount.wAmount & 1; |
| 518 |
// TODO: 3 indicates a sound which loops for the duration of key depression |
| 519 |
// then proceeds to play the remainder of the sample. |
| 520 |
break; |
| 521 |
case SCALE_TUNING: |
| 522 |
break; |
| 523 |
case EXCLUSIVE_CLASS: |
| 524 |
exclusiveClass = Gen.GenAmount.wAmount; |
| 525 |
break; |
| 526 |
case OVERRIDING_ROOT_KEY: |
| 527 |
overridingRootKey = Gen.GenAmount.shAmount; |
| 528 |
CheckRange("overridingRootKey", -1, 127, overridingRootKey); |
| 529 |
break; |
| 530 |
} |
| 531 |
} |
| 532 |
|
| 533 |
void Region::SetModulator(sf2::File* pFile, ModList& Mod) { |
| 534 |
modulators.push_back(ModulatorItem(Mod)); |
| 535 |
/*switch(srcType) { |
| 536 |
case NO_CONTROLLER: |
| 537 |
break; |
| 538 |
case NOTE_ON_VELOCITY: |
| 539 |
break; |
| 540 |
case NOTE_ON_KEY_NUMBER: |
| 541 |
break; |
| 542 |
case POLY_PRESSURE: |
| 543 |
break; |
| 544 |
case CHANNEL_PRESSURE: |
| 545 |
break; |
| 546 |
case PITCH_WHEEL: |
| 547 |
break; |
| 548 |
case PITCH_WHEEL_SENSITIVITY: |
| 549 |
break; |
| 550 |
case LINK: |
| 551 |
break; |
| 552 |
default: std::cout << "Unknown controller source: " << srcType << std::endl; |
| 553 |
}*/ |
| 554 |
} |
| 555 |
|
| 556 |
int Region::GetPan(Region* pPresetRegion) { |
| 557 |
if (pPresetRegion == NULL) return pan; |
| 558 |
int p = pPresetRegion->pan + pan; |
| 559 |
if (p < -64) p = -64; |
| 560 |
if (p > 63) p = 63; |
| 561 |
return p; |
| 562 |
} |
| 563 |
|
| 564 |
int Region::GetFineTune(Region* pPresetRegion) { |
| 565 |
if (pPresetRegion == NULL) return fineTune; |
| 566 |
int t = pPresetRegion->fineTune + fineTune; |
| 567 |
if (t < -99) t = -99; |
| 568 |
if (t > 99) t = 99; |
| 569 |
return t; |
| 570 |
} |
| 571 |
|
| 572 |
int Region::GetCoarseTune(Region* pPresetRegion) { |
| 573 |
if (pPresetRegion == NULL) return coarseTune; |
| 574 |
int t = pPresetRegion->coarseTune + coarseTune; |
| 575 |
if (t < -120) t = -120; |
| 576 |
if (t > 120) t = 120; |
| 577 |
return t; |
| 578 |
} |
| 579 |
|
| 580 |
double Region::GetEG1PreAttackDelay(Region* pPresetRegion) { |
| 581 |
int val = (pPresetRegion == NULL || pPresetRegion->EG1PreAttackDelay == NONE) ? |
| 582 |
EG1PreAttackDelay : pPresetRegion->EG1PreAttackDelay + EG1PreAttackDelay; |
| 583 |
return ToSeconds(CheckRange("GetEG1PreAttackDelay()", -12000, 5000, val)); |
| 584 |
} |
| 585 |
|
| 586 |
double Region::GetEG1Attack(Region* pPresetRegion) { |
| 587 |
int val = (pPresetRegion == NULL || pPresetRegion->EG1Attack == NONE) ? |
| 588 |
EG1Attack : pPresetRegion->EG1Attack + EG1Attack; |
| 589 |
return ToSeconds(CheckRange("GetEG1Attack()", -12000, 8000, val)); |
| 590 |
} |
| 591 |
|
| 592 |
double Region::GetEG1Hold(Region* pPresetRegion) { |
| 593 |
int val = (pPresetRegion == NULL || pPresetRegion->EG1Hold == NONE) ? |
| 594 |
EG1Hold : pPresetRegion->EG1Hold + EG1Hold; |
| 595 |
return ToSeconds(CheckRange("GetEG1Hold()", -12000, 5000, val)); |
| 596 |
} |
| 597 |
|
| 598 |
double Region::GetEG1Decay(Region* pPresetRegion) { |
| 599 |
int val = (pPresetRegion == NULL || pPresetRegion->EG1Decay == NONE) ? |
| 600 |
EG1Decay : pPresetRegion->EG1Decay + EG1Decay; |
| 601 |
return ToSeconds(CheckRange("GetEG1Decay()", -12000, 8000, val)); |
| 602 |
} |
| 603 |
|
| 604 |
int Region::GetEG1Sustain(Region* pPresetRegion) { |
| 605 |
int val = (pPresetRegion == NULL || pPresetRegion->EG1Sustain == NONE) ? |
| 606 |
EG1Sustain : pPresetRegion->EG1Sustain + EG1Sustain; |
| 607 |
return CheckRange("GetEG1Sustain()", 0, 1440, val); |
| 608 |
} |
| 609 |
|
| 610 |
double Region::GetEG1Release(Region* pPresetRegion) { |
| 611 |
int val = (pPresetRegion == NULL || pPresetRegion->EG1Release == NONE) ? |
| 612 |
EG1Release : pPresetRegion->EG1Release + EG1Release; |
| 613 |
return ToSeconds(CheckRange("GetEG1Release()", -12000, 8000, val)); |
| 614 |
} |
| 615 |
|
| 616 |
double Region::GetEG2PreAttackDelay(Region* pPresetRegion) { |
| 617 |
int val = (pPresetRegion == NULL || pPresetRegion->EG2PreAttackDelay == NONE) ? |
| 618 |
EG2PreAttackDelay : pPresetRegion->EG2PreAttackDelay + EG2PreAttackDelay; |
| 619 |
return ToSeconds(CheckRange("GetEG2PreAttackDelay()", -12000, 5000, val)); |
| 620 |
} |
| 621 |
|
| 622 |
double Region::GetEG2Attack(Region* pPresetRegion) { |
| 623 |
int val = (pPresetRegion == NULL || pPresetRegion->EG2Attack == NONE) ? |
| 624 |
EG2Attack : pPresetRegion->EG2Attack + EG2Attack; |
| 625 |
return ToSeconds(CheckRange("GetEG2Attack()", -12000, 8000, val)); |
| 626 |
} |
| 627 |
|
| 628 |
double Region::GetEG2Hold(Region* pPresetRegion) { |
| 629 |
int val = (pPresetRegion == NULL || pPresetRegion->EG2Hold == NONE) ? |
| 630 |
EG2Hold : pPresetRegion->EG2Hold + EG2Hold; |
| 631 |
return ToSeconds(CheckRange("GetEG2Hold()", -12000, 5000, val)); |
| 632 |
} |
| 633 |
|
| 634 |
double Region::GetEG2Decay(Region* pPresetRegion) { |
| 635 |
int val = (pPresetRegion == NULL || pPresetRegion->EG2Decay == NONE) ? |
| 636 |
EG2Decay : pPresetRegion->EG2Decay + EG2Decay; |
| 637 |
return ToSeconds(CheckRange("GetEG2Decay()", -12000, 8000, val)); |
| 638 |
} |
| 639 |
|
| 640 |
int Region::GetEG2Sustain(Region* pPresetRegion) { |
| 641 |
int val = (pPresetRegion == NULL || pPresetRegion->EG2Sustain == NONE) ? |
| 642 |
EG2Sustain : pPresetRegion->EG2Sustain + EG2Sustain; |
| 643 |
return CheckRange("GetEG2Sustain()", 0, 1000, val); |
| 644 |
} |
| 645 |
|
| 646 |
double Region::GetEG2Release(Region* pPresetRegion) { |
| 647 |
int val = (pPresetRegion == NULL || pPresetRegion->EG2Release == NONE) ? |
| 648 |
EG2Release : pPresetRegion->EG2Release + EG2Release; |
| 649 |
return ToSeconds(CheckRange("GetEG2Release()", -12000, 8000, val)); |
| 650 |
} |
| 651 |
|
| 652 |
int Region::GetModEnvToPitch(Region* pPresetRegion) { |
| 653 |
int val = (pPresetRegion == NULL || pPresetRegion->modEnvToPitch == NONE) ? |
| 654 |
modEnvToPitch : pPresetRegion->modEnvToPitch + modEnvToPitch; |
| 655 |
return CheckRange("GetModEnvToPitch()", -12000, 12000, val); |
| 656 |
} |
| 657 |
|
| 658 |
int Region::GetModLfoToPitch(Region* pPresetRegion) { |
| 659 |
int val = (pPresetRegion == NULL || pPresetRegion->modLfoToPitch == NONE) ? |
| 660 |
modLfoToPitch : pPresetRegion->modLfoToPitch + modLfoToPitch; |
| 661 |
return CheckRange("GetModLfoToPitch()", -12000, 12000, val); |
| 662 |
} |
| 663 |
|
| 664 |
int Region::GetModEnvToFilterFc(Region* pPresetRegion) { |
| 665 |
int val = (pPresetRegion == NULL || pPresetRegion->modEnvToFilterFc == NONE) ? |
| 666 |
modEnvToFilterFc : pPresetRegion->modEnvToFilterFc + modEnvToFilterFc; |
| 667 |
return CheckRange("GetModEnvToFilterFc()", -12000, +12000, val); |
| 668 |
} |
| 669 |
|
| 670 |
int Region::GetModLfoToFilterFc(Region* pPresetRegion) { |
| 671 |
int val = (pPresetRegion == NULL || pPresetRegion->modLfoToFilterFc == NONE) ? |
| 672 |
modLfoToFilterFc : pPresetRegion->modLfoToFilterFc + modLfoToFilterFc; |
| 673 |
return CheckRange("GetModLfoToFilterFc()", -12000, +12000, val); |
| 674 |
} |
| 675 |
|
| 676 |
double Region::GetModLfoToVolume(Region* pPresetRegion) { |
| 677 |
int val = (pPresetRegion == NULL || pPresetRegion->modLfoToVolume == NONE) ? |
| 678 |
modLfoToVolume : pPresetRegion->modLfoToVolume + modLfoToVolume; |
| 679 |
return CheckRange("GetModLfoToVolume()", -960, 960, val); |
| 680 |
} |
| 681 |
|
| 682 |
double Region::GetFreqModLfo(Region* pPresetRegion) { |
| 683 |
int val = (pPresetRegion == NULL || pPresetRegion->freqModLfo == NONE) ? |
| 684 |
freqModLfo : pPresetRegion->freqModLfo + freqModLfo; |
| 685 |
return ToHz(CheckRange("GetFreqModLfo()", -16000, 4500, val)); |
| 686 |
} |
| 687 |
|
| 688 |
double Region::GetDelayModLfo(Region* pPresetRegion) { |
| 689 |
int val = (pPresetRegion == NULL || pPresetRegion->delayModLfo == NONE) ? |
| 690 |
delayModLfo : pPresetRegion->delayModLfo + delayModLfo; |
| 691 |
return ToSeconds(CheckRange("GetDelayModLfo()", -12000, 5000, val)); |
| 692 |
} |
| 693 |
|
| 694 |
int Region::GetVibLfoToPitch(Region* pPresetRegion) { |
| 695 |
int val = (pPresetRegion == NULL || pPresetRegion->vibLfoToPitch == NONE) ? |
| 696 |
vibLfoToPitch : pPresetRegion->vibLfoToPitch + vibLfoToPitch; |
| 697 |
return CheckRange("GetVibLfoToPitch()", -12000, 12000, val); |
| 698 |
} |
| 699 |
|
| 700 |
double Region::GetFreqVibLfo(Region* pPresetRegion) { |
| 701 |
int val = (pPresetRegion == NULL || pPresetRegion->freqVibLfo == NONE) ? |
| 702 |
freqVibLfo : pPresetRegion->freqVibLfo + freqVibLfo; |
| 703 |
return ToHz(CheckRange("GetFreqVibLfo()", -16000, 4500, val)); |
| 704 |
} |
| 705 |
|
| 706 |
double Region::GetDelayVibLfo(Region* pPresetRegion) { |
| 707 |
int val = (pPresetRegion == NULL || pPresetRegion->delayVibLfo == NONE) ? |
| 708 |
delayVibLfo : pPresetRegion->delayVibLfo + delayVibLfo; |
| 709 |
return ToSeconds(CheckRange("GetDelayVibLfo()", -12000, 5000, val)); |
| 710 |
} |
| 711 |
|
| 712 |
int Region::GetInitialFilterFc(Region* pPresetRegion) { |
| 713 |
if (pPresetRegion == NULL || pPresetRegion->initialFilterFc == NONE) return initialFilterFc; |
| 714 |
int val = pPresetRegion->initialFilterFc + initialFilterFc; |
| 715 |
return CheckRange("GetInitialFilterFc()", 1500, 13500, val); |
| 716 |
} |
| 717 |
|
| 718 |
int Region::GetInitialFilterQ(Region* pPresetRegion) { |
| 719 |
int val = (pPresetRegion == NULL || pPresetRegion->initialFilterQ == NONE) ? |
| 720 |
initialFilterQ : pPresetRegion->initialFilterQ + initialFilterQ; |
| 721 |
return CheckRange("GetInitialFilterQ()", 0, 960, val); |
| 722 |
} |
| 723 |
|
| 724 |
InstrumentBase::InstrumentBase(sf2::File* pFile) { |
| 725 |
this->pFile = pFile; |
| 726 |
pGlobalRegion = NULL; |
| 727 |
} |
| 728 |
|
| 729 |
InstrumentBase::~InstrumentBase() { |
| 730 |
if (pGlobalRegion) delete pGlobalRegion; |
| 731 |
for (int i = regions.size() - 1; i >= 0; i--) { |
| 732 |
if (regions[i]) delete (regions[i]); |
| 733 |
} |
| 734 |
} |
| 735 |
|
| 736 |
int InstrumentBase::GetRegionCount() { |
| 737 |
return regions.size(); |
| 738 |
} |
| 739 |
|
| 740 |
Region* InstrumentBase::GetRegion(int idx) { |
| 741 |
if (idx < 0 || idx >= GetRegionCount()) { |
| 742 |
throw Exception("Region index out of bounds"); |
| 743 |
} |
| 744 |
|
| 745 |
return regions[idx]; |
| 746 |
} |
| 747 |
|
| 748 |
Query::Query(InstrumentBase& instrument) : instrument(instrument) { |
| 749 |
i = 0; |
| 750 |
} |
| 751 |
|
| 752 |
Region* Query::next() { |
| 753 |
while (i < instrument.GetRegionCount()) { |
| 754 |
Region* r = instrument.GetRegion(i++); |
| 755 |
if (((r->loKey == NONE && r->hiKey == NONE) || (key >= r->loKey && key <= r->hiKey)) && |
| 756 |
((r->minVel == NONE && r->maxVel == NONE) || (vel >= r->minVel && vel <= r->maxVel))) { |
| 757 |
return r; |
| 758 |
} |
| 759 |
} |
| 760 |
return 0; |
| 761 |
} |
| 762 |
|
| 763 |
Instrument::Instrument(sf2::File* pFile, RIFF::Chunk* ck) : InstrumentBase(pFile) { |
| 764 |
this->pFile = pFile; |
| 765 |
LoadString(ck, Name, 20); |
| 766 |
InstBagNdx = ck->ReadInt16(); |
| 767 |
} |
| 768 |
|
| 769 |
Instrument::~Instrument() { |
| 770 |
} |
| 771 |
|
| 772 |
Region* Instrument::CreateRegion() { |
| 773 |
Region* r = new Region; |
| 774 |
r->pParentInstrument = this; |
| 775 |
|
| 776 |
if (pGlobalRegion != NULL) { |
| 777 |
r->loKey = pGlobalRegion->loKey; |
| 778 |
r->hiKey = pGlobalRegion->hiKey; |
| 779 |
r->minVel = pGlobalRegion->minVel; |
| 780 |
r->maxVel = pGlobalRegion->maxVel; |
| 781 |
r->pan = pGlobalRegion->pan; |
| 782 |
r->fineTune = pGlobalRegion->fineTune; |
| 783 |
r->coarseTune = pGlobalRegion->coarseTune; |
| 784 |
r->overridingRootKey = pGlobalRegion->overridingRootKey; |
| 785 |
r->startAddrsOffset = pGlobalRegion->startAddrsOffset; |
| 786 |
r->startAddrsCoarseOffset = pGlobalRegion->startAddrsCoarseOffset; |
| 787 |
r->endAddrsOffset = pGlobalRegion->endAddrsOffset; |
| 788 |
r->endAddrsCoarseOffset = pGlobalRegion->endAddrsCoarseOffset; |
| 789 |
r->startloopAddrsOffset = pGlobalRegion->startloopAddrsOffset; |
| 790 |
r->startloopAddrsCoarseOffset = pGlobalRegion->startloopAddrsCoarseOffset; |
| 791 |
r->endloopAddrsOffset = pGlobalRegion->endloopAddrsOffset; |
| 792 |
r->endloopAddrsCoarseOffset = pGlobalRegion->endloopAddrsCoarseOffset; |
| 793 |
|
| 794 |
r->EG1PreAttackDelay = pGlobalRegion->EG1PreAttackDelay; |
| 795 |
r->EG1Attack = pGlobalRegion->EG1Attack; |
| 796 |
r->EG1Hold = pGlobalRegion->EG1Hold; |
| 797 |
r->EG1Decay = pGlobalRegion->EG1Decay; |
| 798 |
r->EG1Sustain = pGlobalRegion->EG1Sustain; |
| 799 |
r->EG1Release = pGlobalRegion->EG1Release; |
| 800 |
|
| 801 |
r->EG2PreAttackDelay = pGlobalRegion->EG2PreAttackDelay; |
| 802 |
r->EG2Attack = pGlobalRegion->EG2Attack; |
| 803 |
r->EG2Hold = pGlobalRegion->EG2Hold; |
| 804 |
r->EG2Decay = pGlobalRegion->EG2Decay; |
| 805 |
r->EG2Sustain = pGlobalRegion->EG2Sustain; |
| 806 |
r->EG2Release = pGlobalRegion->EG2Release; |
| 807 |
|
| 808 |
r->modEnvToPitch = pGlobalRegion->modEnvToPitch; |
| 809 |
r->modLfoToPitch = pGlobalRegion->modLfoToPitch; |
| 810 |
r->modEnvToFilterFc = pGlobalRegion->modEnvToFilterFc; |
| 811 |
r->modLfoToFilterFc = pGlobalRegion->modLfoToFilterFc; |
| 812 |
r->modLfoToVolume = pGlobalRegion->modLfoToVolume; |
| 813 |
r->freqModLfo = pGlobalRegion->freqModLfo; |
| 814 |
r->delayModLfo = pGlobalRegion->delayModLfo; |
| 815 |
r->vibLfoToPitch = pGlobalRegion->vibLfoToPitch; |
| 816 |
r->freqVibLfo = pGlobalRegion->freqVibLfo; |
| 817 |
r->delayVibLfo = pGlobalRegion->delayVibLfo; |
| 818 |
r->initialFilterFc = pGlobalRegion->initialFilterFc; |
| 819 |
r->initialFilterQ = pGlobalRegion->initialFilterQ; |
| 820 |
|
| 821 |
r->HasLoop = pGlobalRegion->HasLoop; |
| 822 |
r->LoopStart = pGlobalRegion->LoopStart; |
| 823 |
r->LoopEnd = pGlobalRegion->LoopEnd; |
| 824 |
|
| 825 |
r->exclusiveClass = pGlobalRegion->exclusiveClass; |
| 826 |
} |
| 827 |
|
| 828 |
return r; |
| 829 |
} |
| 830 |
|
| 831 |
void Instrument::DeleteRegion(Region* pRegion) { |
| 832 |
for (int i = 0; i < regions.size(); i++) { |
| 833 |
if (regions[i] == pRegion) { |
| 834 |
delete pRegion; |
| 835 |
regions[i] = NULL; |
| 836 |
return; |
| 837 |
} |
| 838 |
} |
| 839 |
|
| 840 |
std::cerr << "Can't remove unknown Region" << std::endl; |
| 841 |
} |
| 842 |
|
| 843 |
void Instrument::LoadRegions(int idx1, int idx2) { |
| 844 |
for (int i = idx1; i < idx2; i++) { |
| 845 |
int gIdx1 = pFile->InstBags[i].InstGenNdx; |
| 846 |
int gIdx2 = pFile->InstBags[i + 1].InstGenNdx; |
| 847 |
|
| 848 |
if (gIdx1 < 0 || gIdx2 < 0 || gIdx1 > gIdx2 || gIdx2 >= pFile->InstGenLists.size()) { |
| 849 |
throw Exception("Broken SF2 file (invalid InstGenNdx)"); |
| 850 |
} |
| 851 |
|
| 852 |
int mIdx1 = pFile->InstBags[i].InstModNdx; |
| 853 |
int mIdx2 = pFile->InstBags[i + 1].InstModNdx; |
| 854 |
|
| 855 |
if (mIdx1 < 0 || mIdx2 < 0 || mIdx1 > mIdx2 || mIdx2 >= pFile->InstModLists.size()) { |
| 856 |
throw Exception("Broken SF2 file (invalid InstModNdx)"); |
| 857 |
} |
| 858 |
|
| 859 |
Region* reg = CreateRegion(); |
| 860 |
|
| 861 |
for (int j = gIdx1; j < gIdx2; j++) { |
| 862 |
reg->SetGenerator(pFile, pFile->InstGenLists[j]); |
| 863 |
// TODO: ignore generators following a sampleID generator |
| 864 |
} |
| 865 |
|
| 866 |
for (int j = mIdx1; j < mIdx2; j++) { |
| 867 |
reg->SetModulator(pFile, pFile->InstModLists[j]); |
| 868 |
} |
| 869 |
|
| 870 |
if (reg->pSample == NULL) { |
| 871 |
if (i == idx1 && idx2 - idx1 > 1) { |
| 872 |
pGlobalRegion = reg; // global zone |
| 873 |
} else { |
| 874 |
std::cerr << "Ignoring instrument's region without sample" << std::endl; |
| 875 |
delete reg; |
| 876 |
} |
| 877 |
} else { |
| 878 |
regions.push_back(reg); |
| 879 |
} |
| 880 |
} |
| 881 |
} |
| 882 |
|
| 883 |
Preset::Preset(sf2::File* pFile, RIFF::Chunk* ck): InstrumentBase(pFile) { |
| 884 |
this->pFile = pFile; |
| 885 |
LoadString(ck, Name, 20); |
| 886 |
PresetNum = ck->ReadInt16(); |
| 887 |
Bank = ck->ReadInt16(); |
| 888 |
PresetBagNdx = ck->ReadInt16(); |
| 889 |
Library = ck->ReadInt32(); |
| 890 |
Genre = ck->ReadInt32(); |
| 891 |
Morphology = ck->ReadInt32(); |
| 892 |
} |
| 893 |
|
| 894 |
Preset::~Preset() { |
| 895 |
} |
| 896 |
|
| 897 |
Region* Preset::CreateRegion() { |
| 898 |
Region* r = new Region; |
| 899 |
|
| 900 |
r->EG1PreAttackDelay = r->EG1Attack = r->EG1Hold = r->EG1Decay = r->EG1Sustain = r->EG1Release = NONE; |
| 901 |
r->EG2PreAttackDelay = r->EG2Attack = r->EG2Hold = r->EG2Decay = r->EG2Sustain = r->EG2Release = NONE; |
| 902 |
r->freqModLfo = r->delayModLfo = r->freqVibLfo = r->delayVibLfo = NONE; |
| 903 |
r->initialFilterFc = r->initialFilterQ = NONE; |
| 904 |
|
| 905 |
if (pGlobalRegion != NULL) { |
| 906 |
r->pan = pGlobalRegion->pan; |
| 907 |
r->fineTune = pGlobalRegion->fineTune; |
| 908 |
r->coarseTune = pGlobalRegion->coarseTune; |
| 909 |
|
| 910 |
r->EG1PreAttackDelay = pGlobalRegion->EG1PreAttackDelay; |
| 911 |
r->EG1Attack = pGlobalRegion->EG1Attack; |
| 912 |
r->EG1Hold = pGlobalRegion->EG1Hold; |
| 913 |
r->EG1Decay = pGlobalRegion->EG1Decay; |
| 914 |
r->EG1Sustain = pGlobalRegion->EG1Sustain; |
| 915 |
r->EG1Release = pGlobalRegion->EG1Release; |
| 916 |
|
| 917 |
r->EG2PreAttackDelay = pGlobalRegion->EG2PreAttackDelay; |
| 918 |
r->EG2Attack = pGlobalRegion->EG2Attack; |
| 919 |
r->EG2Hold = pGlobalRegion->EG2Hold; |
| 920 |
r->EG2Decay = pGlobalRegion->EG2Decay; |
| 921 |
r->EG2Sustain = pGlobalRegion->EG2Sustain; |
| 922 |
r->EG2Release = pGlobalRegion->EG2Release; |
| 923 |
|
| 924 |
r->modEnvToPitch = pGlobalRegion->modEnvToPitch; |
| 925 |
r->modLfoToPitch = pGlobalRegion->modLfoToPitch; |
| 926 |
r->modEnvToFilterFc = pGlobalRegion->modEnvToFilterFc; |
| 927 |
r->modLfoToFilterFc = pGlobalRegion->modLfoToFilterFc; |
| 928 |
r->modLfoToVolume = pGlobalRegion->modLfoToVolume; |
| 929 |
r->freqModLfo = pGlobalRegion->freqModLfo; |
| 930 |
r->delayModLfo = pGlobalRegion->delayModLfo; |
| 931 |
r->vibLfoToPitch = pGlobalRegion->vibLfoToPitch; |
| 932 |
r->freqVibLfo = pGlobalRegion->freqVibLfo; |
| 933 |
r->delayVibLfo = pGlobalRegion->delayVibLfo; |
| 934 |
r->initialFilterFc = pGlobalRegion->initialFilterFc; |
| 935 |
r->initialFilterQ = pGlobalRegion->initialFilterQ; |
| 936 |
} |
| 937 |
|
| 938 |
return r; |
| 939 |
} |
| 940 |
|
| 941 |
void Preset::LoadRegions(int idx1, int idx2) { |
| 942 |
for (int i = idx1; i < idx2; i++) { |
| 943 |
int gIdx1 = pFile->PresetBags[i].GenNdx; |
| 944 |
int gIdx2 = pFile->PresetBags[i + 1].GenNdx; |
| 945 |
|
| 946 |
if (gIdx1 < 0 || gIdx2 < 0 || gIdx1 > gIdx2 || gIdx2 >= pFile->PresetGenLists.size()) { |
| 947 |
throw Exception("Broken SF2 file (invalid PresetGenNdx)"); |
| 948 |
} |
| 949 |
|
| 950 |
Region* reg = CreateRegion(); |
| 951 |
|
| 952 |
for (int j = gIdx1; j < gIdx2; j++) { |
| 953 |
reg->SetGenerator(pFile, pFile->PresetGenLists[j]); |
| 954 |
} |
| 955 |
if (reg->pInstrument == NULL) { |
| 956 |
if (i == idx1 && idx2 - idx1 > 1) { |
| 957 |
pGlobalRegion = reg; // global zone |
| 958 |
} else { |
| 959 |
std::cerr << "Ignoring preset's region without instrument" << std::endl; |
| 960 |
delete reg; |
| 961 |
} |
| 962 |
} else { |
| 963 |
regions.push_back(reg); |
| 964 |
} |
| 965 |
} |
| 966 |
} |
| 967 |
|
| 968 |
/** @brief Constructor. |
| 969 |
* |
| 970 |
* Load an existing SF2 file. |
| 971 |
* |
| 972 |
* @param pRIFF - pointer to a RIFF file which is actually the SF2 file |
| 973 |
* to load |
| 974 |
* @throws Exception if given file is not a SF2 file, expected chunks |
| 975 |
* are missing |
| 976 |
*/ |
| 977 |
File::File(RIFF::File* pRIFF) { |
| 978 |
if (!pRIFF) throw Exception("NULL pointer reference to RIFF::File object."); |
| 979 |
this->pRIFF = pRIFF; |
| 980 |
|
| 981 |
if (pRIFF->GetListType() != RIFF_TYPE_SF2) { |
| 982 |
throw Exception("Not a SF2 file"); |
| 983 |
} |
| 984 |
|
| 985 |
pInfo = new Info(pRIFF); |
| 986 |
if (pInfo->pVer->Major != 2) { |
| 987 |
throw Exception("Unsupported version: " + ToString(pInfo->pVer->Major)); |
| 988 |
} |
| 989 |
|
| 990 |
RIFF::List* lstSDTA = pRIFF->GetSubList(LIST_TYPE_SDTA); |
| 991 |
if (lstSDTA == NULL) { |
| 992 |
throw Exception("Broken SF2 file (missing sdta)"); |
| 993 |
} |
| 994 |
|
| 995 |
RIFF::Chunk* pCkSmpl = lstSDTA->GetSubChunk(CHUNK_ID_SMPL); |
| 996 |
RIFF::Chunk* pCkSm24 = lstSDTA->GetSubChunk(CHUNK_ID_SM24); |
| 997 |
if (pCkSmpl != NULL && pCkSm24 != NULL) { |
| 998 |
long l = pCkSmpl->GetSize() / 2; |
| 999 |
if (l%2) l++; |
| 1000 |
if (pCkSm24->GetSize() != l) { |
| 1001 |
pCkSm24 = NULL; // ignoring sm24 due to invalid size |
| 1002 |
} |
| 1003 |
} |
| 1004 |
|
| 1005 |
RIFF::List* lstPDTA = pRIFF->GetSubList(LIST_TYPE_PDTA); |
| 1006 |
if (lstPDTA == NULL) { |
| 1007 |
throw Exception("Broken SF2 file (missing pdta)"); |
| 1008 |
} |
| 1009 |
|
| 1010 |
RIFF::Chunk* ck = lstPDTA->GetSubChunk(CHUNK_ID_PHDR); |
| 1011 |
if (ck->GetSize() < 38) { |
| 1012 |
throw Exception("Broken SF2 file (broken phdr)"); |
| 1013 |
} |
| 1014 |
|
| 1015 |
int count = ck->GetSize() / 38; |
| 1016 |
for (int i = 0; i < count; i++) { |
| 1017 |
Presets.push_back(new Preset(this, ck)); |
| 1018 |
} |
| 1019 |
|
| 1020 |
ck = GetMandatoryChunk(lstPDTA, CHUNK_ID_PBAG); |
| 1021 |
if (ck->GetSize() < 4 || (ck->GetSize() % 4)) { |
| 1022 |
throw Exception("Broken SF2 file (broken pbag)"); |
| 1023 |
} |
| 1024 |
|
| 1025 |
count = ck->GetSize() / 4; |
| 1026 |
for (int i = 0; i < count; i++) { |
| 1027 |
PresetBag pb; |
| 1028 |
pb.GenNdx = ck->ReadInt16(); |
| 1029 |
pb.ModNdx = ck->ReadInt16(); |
| 1030 |
PresetBags.push_back(pb); |
| 1031 |
} |
| 1032 |
//std::cout << "Preset bags: " << PresetBags.size() << std::endl; |
| 1033 |
|
| 1034 |
ck = GetMandatoryChunk(lstPDTA, CHUNK_ID_PMOD); |
| 1035 |
if (ck->GetSize() % 10) { |
| 1036 |
throw Exception("Broken SF2 file (broken pmod)"); |
| 1037 |
} |
| 1038 |
|
| 1039 |
count = ck->GetSize() / 10; |
| 1040 |
for (int i = 0; i < count; i++) { |
| 1041 |
ModList ml; |
| 1042 |
ml.ModSrcOper = ck->ReadInt16(); |
| 1043 |
ml.ModDestOper = ck->ReadInt16(); |
| 1044 |
ml.ModAmount = ck->ReadInt16(); |
| 1045 |
ml.ModAmtSrcOper = ck->ReadInt16(); |
| 1046 |
ml.ModTransOper = ck->ReadInt16(); |
| 1047 |
PresetModLists.push_back(ml); |
| 1048 |
} |
| 1049 |
//std::cout << "Preset mod lists: " << PresetModLists.size() << std::endl; |
| 1050 |
|
| 1051 |
ck = GetMandatoryChunk(lstPDTA, CHUNK_ID_PGEN); |
| 1052 |
if (ck->GetSize() < 4 || (ck->GetSize() % 4)) { |
| 1053 |
throw Exception("Broken SF2 file (broken pgen)"); |
| 1054 |
} |
| 1055 |
|
| 1056 |
count = ck->GetSize() / 4; |
| 1057 |
for (int i = 0; i < count; i++) { |
| 1058 |
GenList gl; |
| 1059 |
gl.GenOper = ck->ReadInt16(); |
| 1060 |
gl.GenAmount.wAmount = ck->ReadInt16(); |
| 1061 |
PresetGenLists.push_back(gl); |
| 1062 |
} |
| 1063 |
//std::cout << "Preset gen lists: " << PresetGenLists.size() << std::endl; |
| 1064 |
|
| 1065 |
ck = GetMandatoryChunk(lstPDTA, CHUNK_ID_INST); |
| 1066 |
if (ck->GetSize() < (22 * 2) || (ck->GetSize() % 22)) { |
| 1067 |
throw Exception("Broken SF2 file (broken inst)"); |
| 1068 |
} |
| 1069 |
count = ck->GetSize() / 22; |
| 1070 |
for (int i = 0; i < count; i++) { |
| 1071 |
Instruments.push_back(new Instrument(this, ck)); |
| 1072 |
} |
| 1073 |
|
| 1074 |
ck = GetMandatoryChunk(lstPDTA, CHUNK_ID_IBAG); |
| 1075 |
if (ck->GetSize() < 4 || (ck->GetSize() % 4)) { |
| 1076 |
throw Exception("Broken SF2 file (broken ibag)"); |
| 1077 |
} |
| 1078 |
|
| 1079 |
count = ck->GetSize() / 4; |
| 1080 |
for (int i = 0; i < count; i++) { |
| 1081 |
InstBag ib; |
| 1082 |
ib.InstGenNdx = ck->ReadInt16(); |
| 1083 |
ib.InstModNdx = ck->ReadInt16(); |
| 1084 |
InstBags.push_back(ib); |
| 1085 |
} |
| 1086 |
//std::cout << "Instrument bags: " << InstBags.size() << std::endl; |
| 1087 |
|
| 1088 |
ck = GetMandatoryChunk(lstPDTA, CHUNK_ID_IMOD); |
| 1089 |
if (ck->GetSize() % 10) { |
| 1090 |
throw Exception("Broken SF2 file (broken imod)"); |
| 1091 |
} |
| 1092 |
|
| 1093 |
count = ck->GetSize() / 10; |
| 1094 |
for (int i = 0; i < count; i++) { |
| 1095 |
ModList ml; |
| 1096 |
ml.ModSrcOper = ck->ReadInt16(); |
| 1097 |
ml.ModDestOper = ck->ReadInt16(); |
| 1098 |
ml.ModAmount = ck->ReadInt16(); |
| 1099 |
ml.ModAmtSrcOper = ck->ReadInt16(); |
| 1100 |
ml.ModTransOper = ck->ReadInt16(); |
| 1101 |
InstModLists.push_back(ml); |
| 1102 |
} |
| 1103 |
//std::cout << "Instrument mod lists: " << InstModLists.size() << std::endl; |
| 1104 |
|
| 1105 |
ck = GetMandatoryChunk(lstPDTA, CHUNK_ID_IGEN); |
| 1106 |
if (ck->GetSize() < 4 || (ck->GetSize() % 4)) { |
| 1107 |
throw Exception("Broken SF2 file (broken igen)"); |
| 1108 |
} |
| 1109 |
|
| 1110 |
count = ck->GetSize() / 4; |
| 1111 |
for (int i = 0; i < count; i++) { |
| 1112 |
GenList gl; |
| 1113 |
gl.GenOper = ck->ReadInt16(); |
| 1114 |
gl.GenAmount.wAmount = ck->ReadInt16(); |
| 1115 |
InstGenLists.push_back(gl); |
| 1116 |
} |
| 1117 |
//std::cout << "Instrument gen lists: " << InstGenLists.size() << std::endl; |
| 1118 |
|
| 1119 |
ck = GetMandatoryChunk(lstPDTA, CHUNK_ID_SHDR); |
| 1120 |
if ((ck->GetSize() % 46)) { |
| 1121 |
throw Exception("Broken SF2 file (broken shdr)"); |
| 1122 |
} |
| 1123 |
count = ck->GetSize() / 46; |
| 1124 |
for (int i = 0; i < count; i++) { |
| 1125 |
Samples.push_back(new Sample(ck, pCkSmpl, pCkSm24)); |
| 1126 |
} |
| 1127 |
|
| 1128 |
// Loading instrument regions |
| 1129 |
for (int i = 0; i < Instruments.size() - 1; i++) { |
| 1130 |
Instrument* instr = Instruments[i]; |
| 1131 |
int x1 = instr->InstBagNdx; |
| 1132 |
int x2 = Instruments[i + 1]->InstBagNdx; |
| 1133 |
if (x1 < 0 || x2 < 0 || x1 > x2 || x2 >= InstBags.size()) { |
| 1134 |
throw Exception("Broken SF2 file (invalid InstBagNdx)"); |
| 1135 |
} |
| 1136 |
|
| 1137 |
instr->LoadRegions(x1, x2); |
| 1138 |
} |
| 1139 |
|
| 1140 |
// Loading preset regions |
| 1141 |
for (int i = 0; i < Presets.size() - 1; i++) { |
| 1142 |
Preset* preset = Presets[i]; |
| 1143 |
int x1 = preset->PresetBagNdx; |
| 1144 |
int x2 = Presets[i + 1]->PresetBagNdx; |
| 1145 |
if (x1 < 0 || x2 < 0 || x1 > x2 || x2 >= PresetBags.size()) { |
| 1146 |
throw Exception("Broken SF2 file (invalid PresetBagNdx)"); |
| 1147 |
} |
| 1148 |
|
| 1149 |
preset->LoadRegions(x1, x2); |
| 1150 |
} |
| 1151 |
} |
| 1152 |
|
| 1153 |
File::~File() { |
| 1154 |
delete pInfo; |
| 1155 |
for (int i = Presets.size() - 1; i >= 0; i--) { |
| 1156 |
if (Presets[i]) delete (Presets[i]); |
| 1157 |
} |
| 1158 |
for (int i = Instruments.size() - 1; i >= 0; i--) { |
| 1159 |
if (Instruments[i]) delete (Instruments[i]); |
| 1160 |
} |
| 1161 |
for (int i = Samples.size() - 1; i >= 0; i--) { |
| 1162 |
if (Samples[i]) delete (Samples[i]); |
| 1163 |
} |
| 1164 |
} |
| 1165 |
|
| 1166 |
int File::GetPresetCount() { |
| 1167 |
return Presets.size() - 1; // exclude terminal preset (EOP) |
| 1168 |
} |
| 1169 |
|
| 1170 |
Preset* File::GetPreset(int idx) { |
| 1171 |
if (idx < 0 || idx >= GetPresetCount()) { |
| 1172 |
throw Exception("Preset index out of bounds"); |
| 1173 |
} |
| 1174 |
|
| 1175 |
return Presets[idx]; |
| 1176 |
} |
| 1177 |
|
| 1178 |
int File::GetInstrumentCount() { |
| 1179 |
return Instruments.size() - 1; // exclude terminal instrument (EOI) |
| 1180 |
} |
| 1181 |
|
| 1182 |
Instrument* File::GetInstrument(int idx) { |
| 1183 |
if (idx < 0 || idx >= GetInstrumentCount()) { |
| 1184 |
throw Exception("Instrument index out of bounds"); |
| 1185 |
} |
| 1186 |
|
| 1187 |
return Instruments[idx]; |
| 1188 |
} |
| 1189 |
|
| 1190 |
void File::DeleteInstrument(Instrument* pInstrument) { |
| 1191 |
for (int i = 0; i < GetPresetCount(); i++) { |
| 1192 |
Preset* p = GetPreset(i); |
| 1193 |
if (p == NULL) continue; |
| 1194 |
for (int j = p->GetRegionCount() - 1; j >= 0 ; j--) { |
| 1195 |
if (p->GetRegion(j) && p->GetRegion(j)->pInstrument == pInstrument) { |
| 1196 |
p->GetRegion(j)->pInstrument = NULL; |
| 1197 |
} |
| 1198 |
} |
| 1199 |
} |
| 1200 |
|
| 1201 |
for (int i = 0; i < GetInstrumentCount(); i++) { |
| 1202 |
if (GetInstrument(i) == pInstrument) { |
| 1203 |
Instruments[i] = NULL; |
| 1204 |
delete pInstrument; |
| 1205 |
} |
| 1206 |
} |
| 1207 |
} |
| 1208 |
|
| 1209 |
int File::GetSampleCount() { |
| 1210 |
return Samples.size() - 1; // exclude terminal sample (EOS) |
| 1211 |
} |
| 1212 |
|
| 1213 |
Sample* File::GetSample(int idx) { |
| 1214 |
if (idx < 0 || idx >= GetSampleCount()) { |
| 1215 |
throw Exception("Sample index out of bounds"); |
| 1216 |
} |
| 1217 |
|
| 1218 |
return Samples[idx]; |
| 1219 |
} |
| 1220 |
|
| 1221 |
void File::DeleteSample(Sample* pSample) { |
| 1222 |
// Sanity check |
| 1223 |
for (int i = GetInstrumentCount() - 1; i >= 0; i--) { |
| 1224 |
Instrument* pInstr = GetInstrument(i); |
| 1225 |
if (pInstr == NULL) continue; |
| 1226 |
|
| 1227 |
for (int j = pInstr->GetRegionCount() - 1; j >= 0 ; j--) { |
| 1228 |
if (pInstr->GetRegion(j) && pInstr->GetRegion(j)->GetSample() == pSample) { |
| 1229 |
std::cerr << "Deleting sample which is still in use" << std::endl; |
| 1230 |
} |
| 1231 |
} |
| 1232 |
} |
| 1233 |
/////// |
| 1234 |
|
| 1235 |
for (int i = 0; i < GetSampleCount(); i++) { |
| 1236 |
if (Samples[i] == pSample) { |
| 1237 |
delete pSample; |
| 1238 |
Samples[i] = NULL; |
| 1239 |
return; |
| 1240 |
} |
| 1241 |
} |
| 1242 |
|
| 1243 |
throw Exception("Unknown sample: " + pSample->Name); |
| 1244 |
} |
| 1245 |
|
| 1246 |
bool File::HasSamples() { |
| 1247 |
for (int i = 0; i < GetSampleCount(); i++) { |
| 1248 |
if (Samples[i] != NULL) return true; |
| 1249 |
} |
| 1250 |
|
| 1251 |
return false; |
| 1252 |
} |
| 1253 |
|
| 1254 |
/** |
| 1255 |
* Loads the whole sample wave into RAM. Use |
| 1256 |
* ReleaseSampleData() to free the memory if you don't need the cached |
| 1257 |
* sample data anymore. |
| 1258 |
* |
| 1259 |
* @returns buffer_t structure with start address and size of the buffer |
| 1260 |
* in bytes |
| 1261 |
* @see ReleaseSampleData(), Read(), SetPos() |
| 1262 |
*/ |
| 1263 |
Sample::buffer_t Sample::LoadSampleData() { |
| 1264 |
return LoadSampleDataWithNullSamplesExtension(GetTotalFrameCount(), 0); // 0 amount of NullSamples |
| 1265 |
} |
| 1266 |
|
| 1267 |
/** |
| 1268 |
* Reads and caches the first \a SampleCount |
| 1269 |
* numbers of SamplePoints in RAM. Use ReleaseSampleData() to free the |
| 1270 |
* memory space if you don't need the cached samples anymore. |
| 1271 |
* Read the <i>Size</i> member of the <i>buffer_t</i> structure |
| 1272 |
* that will be returned to determine the actual cached samples, but note |
| 1273 |
* that the size is given in bytes! You get the number of actually cached |
| 1274 |
* samples by dividing it by the frame size of the sample: |
| 1275 |
* @code |
| 1276 |
* buffer_t buf = pSample->LoadSampleData(acquired_samples); |
| 1277 |
* long cachedsamples = buf.Size / pSample->FrameSize; |
| 1278 |
* @endcode |
| 1279 |
* |
| 1280 |
* @param SampleCount - number of sample points to load into RAM |
| 1281 |
* @returns buffer_t structure with start address and size of |
| 1282 |
* the cached sample data in bytes |
| 1283 |
* @see ReleaseSampleData(), Read(), SetPos() |
| 1284 |
*/ |
| 1285 |
Sample::buffer_t Sample::LoadSampleData(unsigned long SampleCount) { |
| 1286 |
return LoadSampleDataWithNullSamplesExtension(SampleCount, 0); // 0 amount of NullSamples |
| 1287 |
} |
| 1288 |
|
| 1289 |
/** |
| 1290 |
* Loads the whole sample wave into RAM. Use |
| 1291 |
* ReleaseSampleData() to free the memory if you don't need the cached |
| 1292 |
* sample data anymore. |
| 1293 |
* The method will add \a NullSamplesCount silence samples past the |
| 1294 |
* official buffer end (this won't affect the 'Size' member of the |
| 1295 |
* buffer_t structure, that means 'Size' always reflects the size of the |
| 1296 |
* actual sample data, the buffer might be bigger though). Silence |
| 1297 |
* samples past the official buffer are needed for differential |
| 1298 |
* algorithms that always have to take subsequent samples into account |
| 1299 |
* (resampling/interpolation would be an important example) and avoids |
| 1300 |
* memory access faults in such cases. |
| 1301 |
* |
| 1302 |
* @param NullSamplesCount - number of silence samples the buffer should |
| 1303 |
* be extended past it's data end |
| 1304 |
* @returns buffer_t structure with start address and |
| 1305 |
* size of the buffer in bytes |
| 1306 |
* @see ReleaseSampleData(), Read(), SetPos() |
| 1307 |
*/ |
| 1308 |
Sample::buffer_t Sample::LoadSampleDataWithNullSamplesExtension(uint NullSamplesCount) { |
| 1309 |
return LoadSampleDataWithNullSamplesExtension(GetTotalFrameCount(), NullSamplesCount); |
| 1310 |
} |
| 1311 |
|
| 1312 |
/** |
| 1313 |
* Reads and caches the first \a SampleCount |
| 1314 |
* numbers of SamplePoints in RAM. Use ReleaseSampleData() to free the |
| 1315 |
* memory space if you don't need the cached samples anymore. |
| 1316 |
* Read the <i>Size</i> member of the <i>buffer_t</i> structure |
| 1317 |
* that will be returned to determine the actual cached samples, but note |
| 1318 |
* that the size is given in bytes! You get the number of actually cached |
| 1319 |
* samples by dividing it by the frame size of the sample: |
| 1320 |
* @code |
| 1321 |
* buffer_t buf = pSample->LoadSampleDataWithNullSamplesExtension(acquired_samples, null_samples); |
| 1322 |
* long cachedsamples = buf.Size / pSample->FrameSize; |
| 1323 |
* @endcode |
| 1324 |
* The method will add \a NullSamplesCount silence samples past the |
| 1325 |
* official buffer end (this won't affect the 'Size' member of the |
| 1326 |
* buffer_t structure, that means 'Size' always reflects the size of the |
| 1327 |
* actual sample data, the buffer might be bigger though). Silence |
| 1328 |
* samples past the official buffer are needed for differential |
| 1329 |
* algorithms that always have to take subsequent samples into account |
| 1330 |
* (resampling/interpolation would be an important example) and avoids |
| 1331 |
* memory access faults in such cases. |
| 1332 |
* |
| 1333 |
* @param SampleCount - number of sample points to load into RAM |
| 1334 |
* @param NullSamplesCount - number of silence samples the buffer should |
| 1335 |
* be extended past it's data end |
| 1336 |
* @returns buffer_t structure with start address and |
| 1337 |
* size of the cached sample data in bytes |
| 1338 |
* @see ReleaseSampleData(), Read(), SetPos() |
| 1339 |
*/ |
| 1340 |
Sample::buffer_t Sample::LoadSampleDataWithNullSamplesExtension(unsigned long SampleCount, uint NullSamplesCount) { |
| 1341 |
if (SampleCount > GetTotalFrameCount()) SampleCount = GetTotalFrameCount(); |
| 1342 |
if (RAMCache.pStart) delete[] (int8_t*) RAMCache.pStart; |
| 1343 |
unsigned long allocationsize = (SampleCount + NullSamplesCount) * GetFrameSize(); |
| 1344 |
SetPos(0); // reset read position to begin of sample |
| 1345 |
RAMCache.pStart = new int8_t[allocationsize]; |
| 1346 |
RAMCache.Size = Read(RAMCache.pStart, SampleCount) * GetFrameSize(); |
| 1347 |
RAMCache.NullExtensionSize = allocationsize - RAMCache.Size; |
| 1348 |
// fill the remaining buffer space with silence samples |
| 1349 |
memset((int8_t*)RAMCache.pStart + RAMCache.Size, 0, RAMCache.NullExtensionSize); |
| 1350 |
return GetCache(); |
| 1351 |
} |
| 1352 |
|
| 1353 |
/** |
| 1354 |
* Returns current cached sample points. A buffer_t structure will be |
| 1355 |
* returned which contains address pointer to the begin of the cache and |
| 1356 |
* the size of the cached sample data in bytes. Use |
| 1357 |
* <i>LoadSampleData()</i> to cache a specific amount of sample points in |
| 1358 |
* RAM. |
| 1359 |
* |
| 1360 |
* @returns buffer_t structure with current cached sample points |
| 1361 |
* @see LoadSampleData(); |
| 1362 |
*/ |
| 1363 |
Sample::buffer_t Sample::GetCache() { |
| 1364 |
// return a copy of the buffer_t structure |
| 1365 |
buffer_t result; |
| 1366 |
result.Size = this->RAMCache.Size; |
| 1367 |
result.pStart = this->RAMCache.pStart; |
| 1368 |
result.NullExtensionSize = this->RAMCache.NullExtensionSize; |
| 1369 |
return result; |
| 1370 |
} |
| 1371 |
|
| 1372 |
/** |
| 1373 |
* Frees the cached sample from RAM if loaded with |
| 1374 |
* <i>LoadSampleData()</i> previously. |
| 1375 |
* |
| 1376 |
* @see LoadSampleData(); |
| 1377 |
*/ |
| 1378 |
void Sample::ReleaseSampleData() { |
| 1379 |
if (RAMCache.pStart) delete[] (int8_t*) RAMCache.pStart; |
| 1380 |
RAMCache.pStart = NULL; |
| 1381 |
RAMCache.Size = 0; |
| 1382 |
RAMCache.NullExtensionSize = 0; |
| 1383 |
} |
| 1384 |
|
| 1385 |
/** |
| 1386 |
* Sets the position within the sample (in sample points, not in |
| 1387 |
* bytes). Use this method and <i>Read()</i> if you don't want to load |
| 1388 |
* the sample into RAM, thus for disk streaming. |
| 1389 |
* |
| 1390 |
* @param SampleCount number of sample points to jump |
| 1391 |
* @returns the new sample position |
| 1392 |
* @see Read() |
| 1393 |
*/ |
| 1394 |
unsigned long Sample::SetPos(unsigned long SampleCount) { |
| 1395 |
pCkSmpl->SetPos((Start * 2) + (SampleCount * 2), RIFF::stream_start); |
| 1396 |
if(pCkSm24) pCkSm24->SetPos(Start + SampleCount, RIFF::stream_start); |
| 1397 |
return SampleCount; |
| 1398 |
} |
| 1399 |
|
| 1400 |
/** |
| 1401 |
* Returns the current position in the sample (in sample points). |
| 1402 |
*/ |
| 1403 |
unsigned long Sample::GetPos() { |
| 1404 |
return (pCkSmpl->GetPos() - (Start * 2)) / 2; |
| 1405 |
} |
| 1406 |
|
| 1407 |
/** |
| 1408 |
* Reads \a SampleCount number of sample points from the current |
| 1409 |
* position into the buffer pointed by \a pBuffer and increments the |
| 1410 |
* position within the sample. Use this method |
| 1411 |
* and <i>SetPos()</i> if you don't want to load the sample into RAM, |
| 1412 |
* thus for disk streaming. |
| 1413 |
* |
| 1414 |
* For 16 bit samples, the data in the buffer will be int16_t |
| 1415 |
* (using native endianness). For 24 bit, the buffer will |
| 1416 |
* contain three bytes per sample, little-endian. |
| 1417 |
* |
| 1418 |
* @param pBuffer destination buffer |
| 1419 |
* @param SampleCount number of sample points to read |
| 1420 |
* @returns number of successfully read sample points |
| 1421 |
* @see SetPos() |
| 1422 |
*/ |
| 1423 |
unsigned long Sample::Read(void* pBuffer, unsigned long SampleCount) { |
| 1424 |
// TODO: startAddrsCoarseOffset, endAddrsCoarseOffset |
| 1425 |
if (SampleCount == 0) return 0; |
| 1426 |
long pos = GetPos(); |
| 1427 |
if (pos + SampleCount > GetTotalFrameCount()) SampleCount = GetTotalFrameCount() - pos; |
| 1428 |
|
| 1429 |
if (GetFrameSize() / GetChannelCount() == 3 /* 24 bit */) { |
| 1430 |
uint8_t* pBuf = (uint8_t*)pBuffer; |
| 1431 |
if (SampleType == MONO_SAMPLE || SampleType == ROM_MONO_SAMPLE) { |
| 1432 |
pCkSmpl->Read(pBuf, SampleCount, 2); |
| 1433 |
pCkSm24->Read(pBuf + SampleCount * 2, SampleCount, 1); |
| 1434 |
for (int i = SampleCount - 1; i >= 0; i--) { |
| 1435 |
pBuf[i*3] = pBuf[(SampleCount * 2) + i]; |
| 1436 |
pBuf[i*3 + 2] = pBuf[i*2 + 1]; |
| 1437 |
pBuf[i*3 + 1] = pBuf[i*2]; |
| 1438 |
} |
| 1439 |
} else if (SampleType == LEFT_SAMPLE || SampleType == ROM_LEFT_SAMPLE) { |
| 1440 |
pCkSmpl->Read(pBuf, SampleCount, 2); |
| 1441 |
pCkSm24->Read(pBuf + SampleCount * 2, SampleCount, 1); |
| 1442 |
for (int i = SampleCount - 1; i >= 0; i--) { |
| 1443 |
pBuf[i*6] = pBuf[(SampleCount * 2) + i]; |
| 1444 |
pBuf[i*6 + 2] = pBuf[i*2 + 1]; |
| 1445 |
pBuf[i*6 + 1] = pBuf[i*2]; |
| 1446 |
pBuf[i*6 + 3] = pBuf[i*6 + 4] = pBuf[i*6 + 5] = 0; |
| 1447 |
} |
| 1448 |
} else if (SampleType == RIGHT_SAMPLE || SampleType == ROM_RIGHT_SAMPLE) { |
| 1449 |
pCkSmpl->Read(pBuf, SampleCount, 2); |
| 1450 |
pCkSm24->Read(pBuf + SampleCount * 2, SampleCount, 1); |
| 1451 |
for (int i = SampleCount - 1; i >= 0; i--) { |
| 1452 |
pBuf[i*6 + 3] = pBuf[(SampleCount * 2) + i]; |
| 1453 |
pBuf[i*6 + 5] = pBuf[i*2 + 1]; |
| 1454 |
pBuf[i*6 + 4] = pBuf[i*2]; |
| 1455 |
pBuf[i*6] = pBuf[i*6 + 1] = pBuf[i*6 + 2] = 0; |
| 1456 |
} |
| 1457 |
} |
| 1458 |
} else { |
| 1459 |
if (SampleType == MONO_SAMPLE || SampleType == ROM_MONO_SAMPLE) { |
| 1460 |
return pCkSmpl->Read(pBuffer, SampleCount, 2); |
| 1461 |
} |
| 1462 |
|
| 1463 |
int16_t* pBuf = (int16_t*)pBuffer; |
| 1464 |
if (SampleType == LEFT_SAMPLE || SampleType == ROM_LEFT_SAMPLE) { |
| 1465 |
pCkSmpl->Read(pBuf, SampleCount, 2); |
| 1466 |
for (int i = SampleCount - 1; i >= 0; i--) { |
| 1467 |
pBuf[i*2] = pBuf[i]; |
| 1468 |
pBuf[i*2 + 1] = 0; |
| 1469 |
} |
| 1470 |
} else if (SampleType == RIGHT_SAMPLE || SampleType == ROM_RIGHT_SAMPLE) { |
| 1471 |
pCkSmpl->Read(pBuf, SampleCount, 2); |
| 1472 |
for (int i = SampleCount - 1; i >= 0; i--) { |
| 1473 |
pBuf[i*2] = 0; |
| 1474 |
pBuf[i*2 + 1] = pBuf[i]; |
| 1475 |
} |
| 1476 |
} |
| 1477 |
} |
| 1478 |
|
| 1479 |
if (pCkSmpl->GetPos() > (End * 2)) { |
| 1480 |
std::cerr << "Read after the sample end. This is a BUG!" << std::endl; |
| 1481 |
std::cerr << "Current position: " << GetPos() << std::endl; |
| 1482 |
std::cerr << "Total number of frames: " << GetTotalFrameCount() << std::endl << std::endl; |
| 1483 |
} |
| 1484 |
return SampleCount; |
| 1485 |
} |
| 1486 |
|
| 1487 |
|
| 1488 |
// *************** functions *************** |
| 1489 |
// * |
| 1490 |
|
| 1491 |
/** |
| 1492 |
* Returns the name of this C++ library. |
| 1493 |
*/ |
| 1494 |
String libraryName() { |
| 1495 |
return PACKAGE; |
| 1496 |
} |
| 1497 |
|
| 1498 |
/** |
| 1499 |
* Returns version of this C++ library. |
| 1500 |
*/ |
| 1501 |
String libraryVersion() { |
| 1502 |
return VERSION; |
| 1503 |
} |
| 1504 |
|
| 1505 |
} // namespace sf2 |
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