1/*
2
3SynthFile.cpp
4
5Copyright (c) 2002 Haiku.
6
7Author:
8	Michael Pfeiffer
9
10Permission is hereby granted, free of charge, to any person obtaining a copy of
11this software and associated documentation files (the "Software"), to deal in
12the Software without restriction, including without limitation the rights to
13use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
14of the Software, and to permit persons to whom the Software is furnished to do
15so, subject to the following conditions:
16
17The above copyright notice and this permission notice shall be included in all
18copies or substantial portions of the Software.
19
20THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
21IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
22FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
23AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
24LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
25OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
26THE SOFTWARE.
27
28*/
29
30#include <Debug.h>
31
32#include "SynthFile.h"
33#include "SynthFileReader.h"
34
35// SSound
36
37SSound::SSound(uint16 id)
38	: fOffset(0)
39	, fId(id)
40	, fSamples(NULL)
41	, fFrameCount(0)
42	, fSampleSize(0)
43	, fChannelCount(0)
44{
45}
46
47
48void
49SSound::SetSample(void* samples, int32 frameCount, int16 sampleSize, int16 channelCount)
50{
51	ASSERT(fSamples == NULL);
52	fSamples      = samples;
53	fFrameCount   = frameCount;
54	fSampleSize   = sampleSize;
55	fChannelCount = channelCount;
56}
57
58// SSoundInRange
59SSoundInRange::SSoundInRange(uint8 start, uint8 end, SSound* sound)
60	: fNoteStart(start)
61	, fNoteEnd(end)
62	, fSound(sound)
63{
64}
65
66
67// SInstrument
68
69SInstrument::SInstrument(uint8 instrument)
70	: fOffset(0)
71	, fId(instrument)
72	, fDefaultSound(NULL)
73 	, fSounds(false) // does not own items
74{
75}
76
77
78// SSynthFile
79
80static int bySoundId(const SSound* a, const SSound* b)
81{
82	return (a)->Id() - (b)->Id();
83}
84
85SSynthFile::SSynthFile(const char* fileName)
86	: fReader(fileName)
87{
88	fStatus = fReader.InitCheck();
89	if (fStatus == B_OK) {
90		for (int i = 0; i < 128; i++) {
91			fInstruments.AddItem(NULL);
92		}
93
94		fStatus = fReader.Initialize(this);
95		fSounds.SortItems(bySoundId);
96	}
97}
98
99SSound*
100SSynthFile::FindSound(uint16 sound)
101{
102	const int n = fSounds.CountItems();
103	for (int i = 0; i < n; i ++) {
104		SSound* s = fSounds.ItemAt(i);
105		if (s->Id() == sound) return s;
106	}
107	return NULL;
108}
109
110SSound*
111SSynthFile::GetSound(uint16 sound)
112{
113	SSound* s = FindSound(sound);
114	if (s == NULL) {
115		s = new SSound(sound);
116		fSounds.AddItem(s);
117	}
118	return s;
119}
120
121
122void
123SSynthFile::InstrumentAtPut(int i, SInstrument* instr)
124{
125	ASSERT(fInstruments.CountItems() == 128);
126	fInstruments.ReplaceItem(i, instr);
127}
128
129
130bool
131SSynthFile::HasInstrument(uint8 instrument) const
132{
133	ASSERT(instrument < 128);
134	return fInstruments.ItemAt(instrument) != NULL;
135}
136
137SInstrument*
138SSynthFile::GetInstrument(uint8 instrument)
139{
140	ASSERT(instrument < 128);
141	SInstrument* i = fInstruments.ItemAt(instrument);
142	if (i == NULL) {
143		i = new SInstrument(instrument);
144		InstrumentAtPut(instrument, i);
145	}
146	return i;
147}
148
149void
150SSynthFile::Dump()
151{
152	printf("SynthFile:\n");
153	printf("==========\n\n");
154	for (uint8 i = 0; i < 128; i++) {
155		if (HasInstrument(i)) {
156			SInstrument* instr = GetInstrument(i);
157			printf("Instrument id=%d name=%s sounds=%d\n",
158				(int)instr->Id(),
159				instr->Name(),
160				(int)instr->Sounds()->CountItems());
161			SSound* sound = instr->DefaultSound();
162			ASSERT(sound != NULL);
163			printf("Default Sound id=%d name='%s'\n",
164				(int)sound->Id(),
165				sound->Name());
166			for (int s = 0; s < instr->Sounds()->CountItems(); s ++) {
167				SSoundInRange* range = instr->Sounds()->ItemAt(s);
168				printf("Sound id=%d start=%d end=%d name='%s'\n",
169					(int)range->Sound()->Id(),
170					(int)range->Start(),
171					(int)range->End(),
172					range->Sound()->Name());
173			}
174			printf("\n");
175		}
176	}
177
178	printf("\nSounds:\n");
179	printf("-------\n\n");
180	for (int i = 0; i < fSounds.CountItems(); i ++) {
181		SSound* sound = fSounds.ItemAt(i);
182		printf("Id=%d name='%s'\n", (int)sound->Id(), sound->Name());
183	}
184}
185
186