SDL_sound_CoreAudio: decoders/midi.c annotate

annotate decoders/midi.c @ 533:cad2940e992f stable-1.0

Updated.

author	Ryan C. Gordon <icculus@icculus.org>
date	Thu, 17 Apr 2008 17:55:22 +0000
parents	cbb15ecf423a
children	c66080364dff 45ee760a6f5a

rev	line source
108 803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1 /*
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	2 * SDL_sound -- An abstract sound format decoding API.
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	3 * Copyright (C) 2001 Ryan C. Gordon.
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	4 *
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	5 * This library is free software; you can redistribute it and/or
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	6 * modify it under the terms of the GNU Lesser General Public
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	7 * License as published by the Free Software Foundation; either
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	8 * version 2.1 of the License, or (at your option) any later version.
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	9 *
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	10 * This library is distributed in the hope that it will be useful,
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	13 * Lesser General Public License for more details.
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	14 *
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	15 * You should have received a copy of the GNU Lesser General Public
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	16 * License along with this library; if not, write to the Free Software
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	18 */
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	19
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	20 /*
200 f75ed2d72238 Rewrite to call an included, patched version of Timidity routines directly. Ryan C. Gordon <icculus@icculus.org> parents: 184 diff changeset	21 * MIDI decoder for SDL_sound.
108 803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	22 *
200 f75ed2d72238 Rewrite to call an included, patched version of Timidity routines directly. Ryan C. Gordon <icculus@icculus.org> parents: 184 diff changeset	23 * This driver handles MIDI data through a stripped-down version of TiMidity.
f75ed2d72238 Rewrite to call an included, patched version of Timidity routines directly. Ryan C. Gordon <icculus@icculus.org> parents: 184 diff changeset	24 * See the documentation in the timidity subdirectory.
108 803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	25 *
184 47cc2de2ae36 Changed reference to "LICENSE" file to "COPYING". Ryan C. Gordon <icculus@icculus.org> parents: 149 diff changeset	26 * Please see the file COPYING in the source's root directory.
108 803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	27 *
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	28 * This file written by Torbj�rn Andersson. (d91tan@Update.UU.SE)
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	29 */
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	30
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	31 #if HAVE_CONFIG_H
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	32 # include <config.h>
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	33 #endif
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	34
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	35 #ifdef SOUND_SUPPORTS_MIDI
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	36
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	37 #include <stdio.h>
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	38 #include <stdlib.h>
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	39 #include <string.h>
200 f75ed2d72238 Rewrite to call an included, patched version of Timidity routines directly. Ryan C. Gordon <icculus@icculus.org> parents: 184 diff changeset	40
108 803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	41 #include "SDL_sound.h"
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	42
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	43 #define __SDL_SOUND_INTERNAL__
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	44 #include "SDL_sound_internal.h"
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	45
200 f75ed2d72238 Rewrite to call an included, patched version of Timidity routines directly. Ryan C. Gordon <icculus@icculus.org> parents: 184 diff changeset	46 #include "timidity.h"
f75ed2d72238 Rewrite to call an included, patched version of Timidity routines directly. Ryan C. Gordon <icculus@icculus.org> parents: 184 diff changeset	47
108 803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	48
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	49 static int MIDI_init(void);
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	50 static void MIDI_quit(void);
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	51 static int MIDI_open(Sound_Sample sample, const char ext);
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	52 static void MIDI_close(Sound_Sample *sample);
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	53 static Uint32 MIDI_read(Sound_Sample *sample);
221 c9772a9f5271 Initial implementation or stubs for rewind method. Other cleanups. Ryan C. Gordon <icculus@icculus.org> parents: 200 diff changeset	54 static int MIDI_rewind(Sound_Sample *sample);
306 c97be6e1bd27 Added framework for Sound_Seek() support. Ryan C. Gordon <icculus@icculus.org> parents: 231 diff changeset	55 static int MIDI_seek(Sound_Sample *sample, Uint32 ms);
108 803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	56
200 f75ed2d72238 Rewrite to call an included, patched version of Timidity routines directly. Ryan C. Gordon <icculus@icculus.org> parents: 184 diff changeset	57 static const char *extensions_midi[] = { "MIDI", "MID", NULL };
108 803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	58 const Sound_DecoderFunctions __Sound_DecoderFunctions_MIDI =
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	59 {
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	60 {
149 1df5c106504e Decoders can now list multiple file extensions. Ryan C. Gordon <icculus@icculus.org> parents: 138 diff changeset	61 extensions_midi,
200 f75ed2d72238 Rewrite to call an included, patched version of Timidity routines directly. Ryan C. Gordon <icculus@icculus.org> parents: 184 diff changeset	62 "MIDI decoder, using a subset of TiMidity",
108 803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	63 "Torbj�rn Andersson <d91tan@Update.UU.SE>",
200 f75ed2d72238 Rewrite to call an included, patched version of Timidity routines directly. Ryan C. Gordon <icculus@icculus.org> parents: 184 diff changeset	64 "http://www.icculus.org/SDL_sound/"
108 803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	65 },
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	66
221 c9772a9f5271 Initial implementation or stubs for rewind method. Other cleanups. Ryan C. Gordon <icculus@icculus.org> parents: 200 diff changeset	67 MIDI_init, /* init() method */
c9772a9f5271 Initial implementation or stubs for rewind method. Other cleanups. Ryan C. Gordon <icculus@icculus.org> parents: 200 diff changeset	68 MIDI_quit, /* quit() method */
c9772a9f5271 Initial implementation or stubs for rewind method. Other cleanups. Ryan C. Gordon <icculus@icculus.org> parents: 200 diff changeset	69 MIDI_open, /* open() method */
c9772a9f5271 Initial implementation or stubs for rewind method. Other cleanups. Ryan C. Gordon <icculus@icculus.org> parents: 200 diff changeset	70 MIDI_close, /* close() method */
c9772a9f5271 Initial implementation or stubs for rewind method. Other cleanups. Ryan C. Gordon <icculus@icculus.org> parents: 200 diff changeset	71 MIDI_read, /* read() method */
306 c97be6e1bd27 Added framework for Sound_Seek() support. Ryan C. Gordon <icculus@icculus.org> parents: 231 diff changeset	72 MIDI_rewind, /* rewind() method */
c97be6e1bd27 Added framework for Sound_Seek() support. Ryan C. Gordon <icculus@icculus.org> parents: 231 diff changeset	73 MIDI_seek /* seek() method */
108 803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	74 };
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	75
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	76
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	77 static int MIDI_init(void)
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	78 {
200 f75ed2d72238 Rewrite to call an included, patched version of Timidity routines directly. Ryan C. Gordon <icculus@icculus.org> parents: 184 diff changeset	79 BAIL_IF_MACRO(Timidity_Init() < 0, "MIDI: Could not initialise", 0);
108 803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	80 return(1);
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	81 } /* MIDI_init */
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	82
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	83
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	84 static void MIDI_quit(void)
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	85 {
200 f75ed2d72238 Rewrite to call an included, patched version of Timidity routines directly. Ryan C. Gordon <icculus@icculus.org> parents: 184 diff changeset	86 Timidity_Exit();
108 803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	87 } /* MIDI_quit */
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	88
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	89
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	90 static int MIDI_open(Sound_Sample sample, const char ext)
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	91 {
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	92 Sound_SampleInternal internal = (Sound_SampleInternal ) sample->opaque;
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	93 SDL_RWops *rw = internal->rw;
200 f75ed2d72238 Rewrite to call an included, patched version of Timidity routines directly. Ryan C. Gordon <icculus@icculus.org> parents: 184 diff changeset	94 SDL_AudioSpec spec;
f75ed2d72238 Rewrite to call an included, patched version of Timidity routines directly. Ryan C. Gordon <icculus@icculus.org> parents: 184 diff changeset	95 MidiSong *song;
108 803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	96
200 f75ed2d72238 Rewrite to call an included, patched version of Timidity routines directly. Ryan C. Gordon <icculus@icculus.org> parents: 184 diff changeset	97 spec.channels = 2;
f75ed2d72238 Rewrite to call an included, patched version of Timidity routines directly. Ryan C. Gordon <icculus@icculus.org> parents: 184 diff changeset	98 spec.format = AUDIO_S16SYS;
f75ed2d72238 Rewrite to call an included, patched version of Timidity routines directly. Ryan C. Gordon <icculus@icculus.org> parents: 184 diff changeset	99 spec.freq = 44100;
f75ed2d72238 Rewrite to call an included, patched version of Timidity routines directly. Ryan C. Gordon <icculus@icculus.org> parents: 184 diff changeset	100 spec.samples = 4096;
f75ed2d72238 Rewrite to call an included, patched version of Timidity routines directly. Ryan C. Gordon <icculus@icculus.org> parents: 184 diff changeset	101
f75ed2d72238 Rewrite to call an included, patched version of Timidity routines directly. Ryan C. Gordon <icculus@icculus.org> parents: 184 diff changeset	102 song = Timidity_LoadSong(rw, &spec);
f75ed2d72238 Rewrite to call an included, patched version of Timidity routines directly. Ryan C. Gordon <icculus@icculus.org> parents: 184 diff changeset	103 BAIL_IF_MACRO(song == NULL, "MIDI: Not a MIDI file.", 0);
f75ed2d72238 Rewrite to call an included, patched version of Timidity routines directly. Ryan C. Gordon <icculus@icculus.org> parents: 184 diff changeset	104 Timidity_SetVolume(song, 100);
f75ed2d72238 Rewrite to call an included, patched version of Timidity routines directly. Ryan C. Gordon <icculus@icculus.org> parents: 184 diff changeset	105 Timidity_Start(song);
108 803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	106
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	107 SNDDBG(("MIDI: Accepting data stream.\n"));
200 f75ed2d72238 Rewrite to call an included, patched version of Timidity routines directly. Ryan C. Gordon <icculus@icculus.org> parents: 184 diff changeset	108
f75ed2d72238 Rewrite to call an included, patched version of Timidity routines directly. Ryan C. Gordon <icculus@icculus.org> parents: 184 diff changeset	109 internal->decoder_private = (void *) song;
f75ed2d72238 Rewrite to call an included, patched version of Timidity routines directly. Ryan C. Gordon <icculus@icculus.org> parents: 184 diff changeset	110
f75ed2d72238 Rewrite to call an included, patched version of Timidity routines directly. Ryan C. Gordon <icculus@icculus.org> parents: 184 diff changeset	111 sample->actual.channels = 2;
f75ed2d72238 Rewrite to call an included, patched version of Timidity routines directly. Ryan C. Gordon <icculus@icculus.org> parents: 184 diff changeset	112 sample->actual.rate = 44100;
f75ed2d72238 Rewrite to call an included, patched version of Timidity routines directly. Ryan C. Gordon <icculus@icculus.org> parents: 184 diff changeset	113 sample->actual.format = AUDIO_S16SYS;
f75ed2d72238 Rewrite to call an included, patched version of Timidity routines directly. Ryan C. Gordon <icculus@icculus.org> parents: 184 diff changeset	114
312 498240aa76f1 Seek implementations. Ryan C. Gordon <icculus@icculus.org> parents: 306 diff changeset	115 sample->flags = SOUND_SAMPLEFLAG_CANSEEK;
108 803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	116 return(1); /* we'll handle this data. */
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	117 } /* MIDI_open */
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	118
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	119
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	120 static void MIDI_close(Sound_Sample *sample)
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	121 {
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	122 Sound_SampleInternal internal = (Sound_SampleInternal ) sample->opaque;
200 f75ed2d72238 Rewrite to call an included, patched version of Timidity routines directly. Ryan C. Gordon <icculus@icculus.org> parents: 184 diff changeset	123 MidiSong song = (MidiSong ) internal->decoder_private;
108 803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	124
200 f75ed2d72238 Rewrite to call an included, patched version of Timidity routines directly. Ryan C. Gordon <icculus@icculus.org> parents: 184 diff changeset	125 Timidity_FreeSong(song);
108 803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	126 } /* MIDI_close */
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	127
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	128
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	129 static Uint32 MIDI_read(Sound_Sample *sample)
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	130 {
200 f75ed2d72238 Rewrite to call an included, patched version of Timidity routines directly. Ryan C. Gordon <icculus@icculus.org> parents: 184 diff changeset	131 Uint32 retval;
108 803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	132 Sound_SampleInternal internal = (Sound_SampleInternal ) sample->opaque;
200 f75ed2d72238 Rewrite to call an included, patched version of Timidity routines directly. Ryan C. Gordon <icculus@icculus.org> parents: 184 diff changeset	133 MidiSong song = (MidiSong ) internal->decoder_private;
108 803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	134
200 f75ed2d72238 Rewrite to call an included, patched version of Timidity routines directly. Ryan C. Gordon <icculus@icculus.org> parents: 184 diff changeset	135 retval = Timidity_PlaySome(song, internal->buffer, internal->buffer_size);
108 803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	136
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	137 /* Make sure the read went smoothly... */
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	138 if (retval == 0)
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	139 sample->flags \|= SOUND_SAMPLEFLAG_EOF;
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	140
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	141 else if (retval == -1)
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	142 sample->flags \|= SOUND_SAMPLEFLAG_ERROR;
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	143
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	144 /* (next call this EAGAIN may turn into an EOF or error.) */
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	145 else if (retval < internal->buffer_size)
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	146 sample->flags \|= SOUND_SAMPLEFLAG_EAGAIN;
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	147
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	148 return(retval);
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	149 } /* MIDI_read */
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	150
221 c9772a9f5271 Initial implementation or stubs for rewind method. Other cleanups. Ryan C. Gordon <icculus@icculus.org> parents: 200 diff changeset	151
c9772a9f5271 Initial implementation or stubs for rewind method. Other cleanups. Ryan C. Gordon <icculus@icculus.org> parents: 200 diff changeset	152 static int MIDI_rewind(Sound_Sample *sample)
c9772a9f5271 Initial implementation or stubs for rewind method. Other cleanups. Ryan C. Gordon <icculus@icculus.org> parents: 200 diff changeset	153 {
231 d3dc34315ac7 Rewind method implemented by Torbj�rn. Ryan C. Gordon <icculus@icculus.org> parents: 221 diff changeset	154 Sound_SampleInternal internal = (Sound_SampleInternal ) sample->opaque;
d3dc34315ac7 Rewind method implemented by Torbj�rn. Ryan C. Gordon <icculus@icculus.org> parents: 221 diff changeset	155 MidiSong song = (MidiSong ) internal->decoder_private;
d3dc34315ac7 Rewind method implemented by Torbj�rn. Ryan C. Gordon <icculus@icculus.org> parents: 221 diff changeset	156
d3dc34315ac7 Rewind method implemented by Torbj�rn. Ryan C. Gordon <icculus@icculus.org> parents: 221 diff changeset	157 Timidity_Start(song);
d3dc34315ac7 Rewind method implemented by Torbj�rn. Ryan C. Gordon <icculus@icculus.org> parents: 221 diff changeset	158 return(1);
221 c9772a9f5271 Initial implementation or stubs for rewind method. Other cleanups. Ryan C. Gordon <icculus@icculus.org> parents: 200 diff changeset	159 } /* MIDI_rewind */
c9772a9f5271 Initial implementation or stubs for rewind method. Other cleanups. Ryan C. Gordon <icculus@icculus.org> parents: 200 diff changeset	160
306 c97be6e1bd27 Added framework for Sound_Seek() support. Ryan C. Gordon <icculus@icculus.org> parents: 231 diff changeset	161
c97be6e1bd27 Added framework for Sound_Seek() support. Ryan C. Gordon <icculus@icculus.org> parents: 231 diff changeset	162 static int MIDI_seek(Sound_Sample *sample, Uint32 ms)
c97be6e1bd27 Added framework for Sound_Seek() support. Ryan C. Gordon <icculus@icculus.org> parents: 231 diff changeset	163 {
312 498240aa76f1 Seek implementations. Ryan C. Gordon <icculus@icculus.org> parents: 306 diff changeset	164 Sound_SampleInternal internal = (Sound_SampleInternal ) sample->opaque;
498240aa76f1 Seek implementations. Ryan C. Gordon <icculus@icculus.org> parents: 306 diff changeset	165 MidiSong song = (MidiSong ) internal->decoder_private;
498240aa76f1 Seek implementations. Ryan C. Gordon <icculus@icculus.org> parents: 306 diff changeset	166
498240aa76f1 Seek implementations. Ryan C. Gordon <icculus@icculus.org> parents: 306 diff changeset	167 Timidity_Seek(song, ms);
498240aa76f1 Seek implementations. Ryan C. Gordon <icculus@icculus.org> parents: 306 diff changeset	168 return(1);
306 c97be6e1bd27 Added framework for Sound_Seek() support. Ryan C. Gordon <icculus@icculus.org> parents: 231 diff changeset	169 } /* MIDI_seek */
c97be6e1bd27 Added framework for Sound_Seek() support. Ryan C. Gordon <icculus@icculus.org> parents: 231 diff changeset	170
108 803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	171 #endif /* SOUND_SUPPORTS_MIDI */
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	172
200 f75ed2d72238 Rewrite to call an included, patched version of Timidity routines directly. Ryan C. Gordon <icculus@icculus.org> parents: 184 diff changeset	173
108 803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	174 /* end of midi.c ... */
803ba4dabbce Initial add, from Torbj�rn Andersson. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	175

Mercurial > SDL_sound_CoreAudio

annotate decoders/midi.c @ 533:cad2940e992f stable-1.0