SynthFile
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Michael Pfeiffer
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src/tests/kits/midi/synth_file_reader/SynthFile.cpp
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186
src/tests/kits/midi/synth_file_reader/SynthFile.cpp
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/*
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SynthFile.cpp
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Copyright (c) 2002 OpenBeOS.
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Author:
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Michael Pfeiffer
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Permission is hereby granted, free of charge, to any person obtaining a copy of
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this software and associated documentation files (the "Software"), to deal in
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the Software without restriction, including without limitation the rights to
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use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
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of the Software, and to permit persons to whom the Software is furnished to do
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so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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*/
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#include <Debug.h>
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#include "SynthFile.h"
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#include "SynthFileReader.h"
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// SSound
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SSound::SSound(uint16 id)
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: fOffset(0)
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, fId(id)
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, fSamples(NULL)
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, fFrameCount(0)
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, fSampleSize(0)
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, fChannelCount(0)
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{
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}
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void
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SSound::SetSample(void* samples, int32 frameCount, int16 sampleSize, int16 channelCount)
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{
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ASSERT(fSamples == NULL);
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fSamples = samples;
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fFrameCount = frameCount;
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fSampleSize = sampleSize;
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fChannelCount = channelCount;
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}
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// SSoundInRange
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SSoundInRange::SSoundInRange(uint8 start, uint8 end, SSound* sound)
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: fNoteStart(start)
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, fNoteEnd(end)
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, fSound(sound)
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{
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}
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// SInstrument
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SInstrument::SInstrument(uint8 instrument)
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: fOffset(0)
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, fId(instrument)
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, fDefaultSound(NULL)
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, fSounds(false) // does not own items
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{
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}
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// SSynthFile
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static int bySoundId(const SSound** a, const SSound** b)
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{
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return (*a)->Id() - (*b)->Id();
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}
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SSynthFile::SSynthFile(const char* fileName)
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: fReader(fileName)
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{
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fStatus = fReader.InitCheck();
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if (fStatus == B_OK) {
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for (int i = 0; i < 128; i++) {
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fInstruments.AddItem(NULL);
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}
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fStatus = fReader.Initialize(this);
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fSounds.SortItems(bySoundId);
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}
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}
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SSound*
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SSynthFile::FindSound(uint16 sound)
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{
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const int n = fSounds.CountItems();
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for (int i = 0; i < n; i ++) {
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SSound* s = fSounds.ItemAt(i);
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if (s->Id() == sound) return s;
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}
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return NULL;
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}
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SSound*
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SSynthFile::GetSound(uint16 sound)
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{
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SSound* s = FindSound(sound);
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if (s == NULL) {
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s = new SSound(sound);
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fSounds.AddItem(s);
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}
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return s;
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}
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void
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SSynthFile::InstrumentAtPut(int i, SInstrument* instr)
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{
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ASSERT(fInstruments.CountItems() == 128);
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SInstrument** array = (SInstrument**)fInstruments.Items();
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array[i] = instr;
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}
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bool
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SSynthFile::HasInstrument(uint8 instrument) const
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{
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ASSERT(instrument < 128);
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return fInstruments.ItemAt(instrument) != NULL;
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}
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SInstrument*
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SSynthFile::GetInstrument(uint8 instrument)
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{
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ASSERT(instrument < 128);
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SInstrument* i = fInstruments.ItemAt(instrument);
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if (i == NULL) {
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i = new SInstrument(instrument);
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InstrumentAtPut(instrument, i);
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}
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return i;
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}
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void
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SSynthFile::Dump()
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{
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printf("SynthFile:\n");
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printf("==========\n\n");
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for (uint8 i = 0; i < 128; i++) {
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if (HasInstrument(i)) {
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SInstrument* instr = GetInstrument(i);
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printf("Instrument id=%d name=%s sounds=%d\n",
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(int)instr->Id(),
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instr->Name(),
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(int)instr->Sounds()->CountItems());
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SSound* sound = instr->DefaultSound();
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ASSERT(sound != NULL);
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printf("Default Sound id=%d name='%s'\n",
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(int)sound->Id(),
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sound->Name());
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for (int s = 0; s < instr->Sounds()->CountItems(); s ++) {
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SSoundInRange* range = instr->Sounds()->ItemAt(s);
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printf("Sound id=%d start=%d end=%d name='%s'\n",
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(int)range->Sound()->Id(),
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(int)range->Start(),
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(int)range->End(),
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range->Sound()->Name());
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}
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printf("\n");
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}
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}
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printf("\nSounds:\n");
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printf("-------\n\n");
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for (int i = 0; i < fSounds.CountItems(); i ++) {
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SSound* sound = fSounds.ItemAt(i);
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printf("Id=%d name='%s'\n", (int)sound->Id(), sound->Name());
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}
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}
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131
src/tests/kits/midi/synth_file_reader/SynthFile.h
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131
src/tests/kits/midi/synth_file_reader/SynthFile.h
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@ -0,0 +1,131 @@
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/*
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SynthFile.h
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Copyright (c) 2002 OpenBeOS.
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Author:
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Michael Pfeiffer
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Permission is hereby granted, free of charge, to any person obtaining a copy of
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this software and associated documentation files (the "Software"), to deal in
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the Software without restriction, including without limitation the rights to
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use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
|
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of the Software, and to permit persons to whom the Software is furnished to do
|
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so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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*/
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#ifndef _SYNTH_FILE_H
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#define _SYNTH_FILE_H
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#include "SynthFileReader.h"
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#include "TList.h"
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class SSound {
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uint32 fOffset;
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uint16 fId;
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BString fName;
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void* fSamples;
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int32 fFrameCount;
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int16 fSampleSize;
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int16 fChannelCount;
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SSound() { }
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public:
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SSound(uint16 id);
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uint16 Id() const { return fId; }
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void SetName(const char* name) { fName = name; }
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const char* Name() const { return fName.String(); }
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void SetSample(void* samples, int32 frameCount, int16 sampleSize, int16 channelCount);
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void* Samples() const { return fSamples; }
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int32 FrameCount() const { return fFrameCount; }
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int16 SampleSize() const { return fSampleSize; }
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int16 ChannelCount() const { return fChannelCount; }
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bool HasSamples() const { return fSamples != NULL; }
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void SetOffset(uint32 offset) { fOffset = offset; }
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uint32 Offset() const { return fOffset; }
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};
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class SSoundInRange {
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uint8 fNoteStart;
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uint8 fNoteEnd;
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SSound* fSound;
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SSoundInRange() { }
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public:
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SSoundInRange(uint8 start, uint8 end, SSound* sound);
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uint8 Start() const { return fNoteStart; }
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uint8 End() const { return fNoteEnd; }
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SSound* Sound() const { return fSound; }
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};
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class SInstrument {
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uint32 fOffset;
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uint8 fId;
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BString fName;
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SSound* fDefaultSound;
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TList<SSoundInRange> fSounds;
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public:
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SInstrument(uint8 instrument);
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void SetOffset(uint32 offset) { fOffset = offset; }
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uint32 Offset() const { return fOffset; }
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uint8 Id() const { return fId; }
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void SetName(const char* name) { fName = name; }
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const char* Name() const { return fName.String(); }
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void SetDefaultSound(SSound* sound) { fDefaultSound = sound; }
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SSound* DefaultSound() const { return fDefaultSound; }
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TList<SSoundInRange>* Sounds() { return &fSounds; }
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};
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class SSynthFile;
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class SSynthFile {
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TList<SInstrument> fInstruments;
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TList<SSound> fSounds;
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SSynthFileReader fReader;
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status_t fStatus;
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void InstrumentAtPut(int i, SInstrument* instr);
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SSound* FindSound(uint16 sound);
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public:
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SSynthFile(const char* fileName);
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status_t InitCheck() const { return fReader.InitCheck(); }
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SSound* GetSound(uint16 sound);
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bool HasInstrument(uint8 instrument) const;
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SInstrument* GetInstrument(uint8 instrument);
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void Dump();
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};
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#endif
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