1/*
2
3SynthFile.cpp
4
5Copyright (c) 2002 OpenBeOS.
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	SInstrument** array = (SInstrument**)fInstruments.Items();
127	array[i] = instr;
128}
129
130
131bool
132SSynthFile::HasInstrument(uint8 instrument) const
133{
134	ASSERT(instrument < 128);
135	return fInstruments.ItemAt(instrument) != NULL;
136}
137
138SInstrument*
139SSynthFile::GetInstrument(uint8 instrument)
140{
141	ASSERT(instrument < 128);
142	SInstrument* i = fInstruments.ItemAt(instrument);
143	if (i == NULL) {
144		i = new SInstrument(instrument);
145		InstrumentAtPut(instrument, i);
146	}
147	return i;
148}
149
150void
151SSynthFile::Dump()
152{
153	printf("SynthFile:\n");
154	printf("==========\n\n");
155	for (uint8 i = 0; i < 128; i++) {
156		if (HasInstrument(i)) {
157			SInstrument* instr = GetInstrument(i);
158			printf("Instrument id=%d name=%s sounds=%d\n",
159				(int)instr->Id(),
160				instr->Name(),
161				(int)instr->Sounds()->CountItems());
162			SSound* sound = instr->DefaultSound();
163			ASSERT(sound != NULL);
164			printf("Default Sound id=%d name='%s'\n",
165				(int)sound->Id(),
166				sound->Name());
167			for (int s = 0; s < instr->Sounds()->CountItems(); s ++) {
168				SSoundInRange* range = instr->Sounds()->ItemAt(s);
169				printf("Sound id=%d start=%d end=%d name='%s'\n",
170					(int)range->Sound()->Id(),
171					(int)range->Start(),
172					(int)range->End(),
173					range->Sound()->Name());
174			}
175			printf("\n");
176		}
177	}
178
179	printf("\nSounds:\n");
180	printf("-------\n\n");
181	for (int i = 0; i < fSounds.CountItems(); i ++) {
182		SSound* sound = fSounds.ItemAt(i);
183		printf("Id=%d name='%s'\n", (int)sound->Id(), sound->Name());
184	}
185}
186
187