Mercurial > hg > xemacs-beta
annotate src/linuxplay.c @ 2367:ecf1ebac70d8
[xemacs-hg @ 2004-11-04 23:05:23 by ben]
commit mega-patch
configure.in: Turn off -Winline and -Wchar-subscripts.
Use the right set of cflags when compiling modules.
Rewrite ldap configuration to separate the inclusion of lber
(needed in recent Cygwin) from the basic checks for the
needed libraries.
add a function for MAKE_JUNK_C; initially code was added to
generate xemacs.def using this, but it will need to be rewritten.
add an rm -f for junk.c to avoid weird Cygwin bug with cp -f onto
an existing file.
Sort list of auto-detected functions and eliminate unused checks for
stpcpy, setlocale and getwd.
Add autodetection of Cygwin scanf problems
BETA: Rewrite section on configure to indicate what flags are important
and what not.
digest-doc.c, make-dump-id.c, profile.c, sorted-doc.c: Add proper decls for main().
make-msgfile.c: Document that this is old junk.
Move proposal to text.c.
make-msgfile.lex: Move proposal to text.c.
make-mswin-unicode.pl: Convert error-generating code so that the entire message will
be seen as a single unrecognized token.
mule/mule-ccl.el: Update docs.
lispref/mule.texi: Update CCL docs.
ldap/eldap.c: Mule-ize.
Use EXTERNAL_LIST_LOOP_2 instead of deleted EXTERNAL_LIST_LOOP.
* XEmacs 21.5.18 "chestnut" is released.
---------------------------------------------------------------
MULE-RELATED WORK:
---------------------------------------------------------------
---------------------------
byte-char conversion
---------------------------
buffer.c, buffer.h, insdel.c, text.c: Port FSF algorithm for byte-char conversion, replacing broken
previous version. Track the char position of the gap. Add
functions to do char-byte conversion downwards as well as upwards.
Move comments about algorithm workings to internals manual.
---------------------------
work on types
---------------------------
alloc.c, console-x-impl.h, dump-data.c, dump-data.h, dumper.c, dialog-msw.c, dired-msw.c, doc.c, editfns.c, esd.c, event-gtk.h, event-msw.c, events.c, file-coding.c, file-coding.h, fns.c, glyphs-eimage.c, glyphs-gtk.c, glyphs-msw.c, glyphs-shared.c, glyphs-x.c, glyphs.c, glyphs.h, gui.c, hpplay.c, imgproc.c, intl-win32.c, lrecord.h, lstream.c, keymap.c, lisp.h, libsst.c, linuxplay.c, miscplay.c, miscplay.h, mule-coding.c, nas.c, nt.c, ntheap.c, ntplay.c, objects-msw.c, objects-tty.c, objects-x.c, print.c, process-nt.c, process.c, redisplay.h, select-common.h, select-gtk.c, select-x.c, sgiplay.c, sound.c, sound.h, sunplay.c, sysfile.h, sysdep.c, syswindows.h, text.c, unexnt.c, win32.c, xgccache.c: Further work on types. This creates a full set of types for all
the basic semantics of `char' that I have so far identified, so that
its semantics can always be identified for the purposes of proper
Mule-safe code, and the raw use of `char' always avoided.
(1) More type renaming, for consistency of naming.
Char_ASCII -> Ascbyte
UChar_ASCII -> UAscbyte
Char_Binary -> CBinbyte
UChar_Binary -> Binbyte
SChar_Binary -> SBinbyte
(2) Introduce Rawbyte, CRawbyte, Boolbyte, Chbyte, UChbyte, and
Bitbyte and use them.
(3) New types Itext, Wexttext and Textcount for separating out
the concepts of bytes and textual units (different under UTF-16
and UTF-32, which are potential internal encodings).
(4) qxestr*_c -> qxestr*_ascii.
lisp.h: New; goes with other qxe() functions. #### Maybe goes in a
different section.
lisp.h: Group generic int-type defs together with EMACS_INT defs.
lisp.h: * lisp.h (WEXTTEXT_IS_WIDE)
New defns.
lisp.h: New type to replace places where int occurs as a boolean.
It's signed because occasionally people may want to use -1 as
an error value, and because unsigned ints are viral -- see comments
in the internals manual against using them.
dynarr.c: int -> Bytecount.
---------------------------
Mule-izing
---------------------------
device-x.c: Partially Mule-ize.
dumper.c, dumper.h: Mule-ize. Use Rawbyte. Use stderr_out not printf. Use wext_*().
sysdep.c, syswindows.h, text.c: New Wexttext API for manipulation of external text that may be
Unicode (e.g. startup code under Windows).
emacs.c: Mule-ize. Properly deal with argv in external encoding.
Use wext_*() and Wexttext. Use Rawbyte.
#if 0 some old junk on SCO that is unlikely to be correct.
Rewrite allocation code in run-temacs.
emacs.c, symsinit.h, win32.c: Rename win32 init function and call it even earlier, to
initialize mswindows_9x_p even earlier, for use in startup code
(XEUNICODE_P).
process.c: Use _wenviron not environ under Windows, to get Unicode environment
variables.
event-Xt.c: Mule-ize drag-n-drop related stuff.
dragdrop.c, dragdrop.h, frame-x.c: Mule-ize.
text.h: Add some more stand-in defines for particular kinds of conversion;
use in Mule-ization work in frame-x.c etc.
---------------------------
Freshening
---------------------------
intl-auto-encap-win32.c, intl-auto-encap-win32.h: Regenerate.
---------------------------
Unicode-work
---------------------------
intl-win32.c, syswindows.h: Factor out common options to MultiByteToWideChar and
WideCharToMultiByte. Add convert_unicode_to_multibyte_malloc()
and convert_unicode_to_multibyte_dynarr() and use. Add stuff for
alloca() conversion of multibyte/unicode.
alloc.c: Use dfc_external_data_len() in case of unicode coding system.
alloc.c, mule-charset.c: Don't zero out and reinit charset Unicode tables. This fucks up
dump-time loading. Anyway, either we load them at dump time or
run time, never both.
unicode.c: Dump the blank tables as well.
---------------------------------------------------------------
DOCUMENTATION, MOSTLY MULE-RELATED:
---------------------------------------------------------------
EmacsFrame.c, emodules.c, event-Xt.c, fileio.c, input-method-xlib.c, mule-wnnfns.c, redisplay-gtk.c, redisplay-tty.c, redisplay-x.c, regex.c, sysdep.c: Add comment about Mule work needed.
text.h: Add more documentation describing why DFC routines were not written
to return their value. Add some other DFC documentation.
console-msw.c, console-msw.h: Add pointer to docs in win32.c.
emacs.c: Add comments on sources of doc info.
text.c, charset.h, unicode.c, intl-win32.c, intl-encap-win32.c, text.h, file-coding.c, mule-coding.c: Collect background comments and related to text matters and
internationalization, and proposals for work to be done, in text.c
or Internals manual, stuff related to specific textual API's in
text.h, and stuff related to internal implementation of Unicode
conversion in unicode.c. Put lots of pointers to the comments to
make them easier to find.
s/mingw32.h, s/win32-common.h, s/win32-native.h, s/windowsnt.h, win32.c: Add bunches of new documentation on the different kinds of
builds and environments under Windows and how they work.
Collect this info in win32.c. Add pointers to these docs in
the relevant s/* files.
emacs.c: Document places with long comments.
Remove comment about exiting, move to internals manual, put
in pointer.
event-stream.c: Move docs about event queues and focus to internals manual, put
in pointer.
events.h: Move docs about event stream callbacks to internals manual, put
in pointer.
profile.c, redisplay.c, signal.c: Move documentation to the Internals manual.
process-nt.c: Add pointer to comment in win32-native.el.
lisp.h: Add comments about some comment conventions.
lisp.h: Add comment about the second argument.
device-msw.c, redisplay-msw.c: @@#### comments are out-of-date.
---------------------------------------------------------------
PDUMP WORK (MOTIVATED BY UNICODE CHANGES)
---------------------------------------------------------------
alloc.c, buffer.c, bytecode.c, console-impl.h, console.c, device.c, dumper.c, lrecord.h, elhash.c, emodules.h, events.c, extents.c, frame.c, glyphs.c, glyphs.h, mule-charset.c, mule-coding.c, objects.c, profile.c, rangetab.c, redisplay.c, specifier.c, specifier.h, window.c, lstream.c, file-coding.h, file-coding.c: PDUMP:
Properly implement dump_add_root_block(), which never worked before,
and is necessary for dumping Unicode tables.
Pdump name changes for accuracy:
XD_STRUCT_PTR -> XD_BLOCK_PTR.
XD_STRUCT_ARRAY -> XD_BLOCK_ARRAY.
XD_C_STRING -> XD_ASCII_STRING.
*_structure_* -> *_block_*.
lrecord.h: some comments added about
dump_add_root_block() vs dump_add_root_block_ptr().
extents.c: remove incorrect comment about pdump problems with gap array.
---------------------------------------------------------------
ALLOCATION
---------------------------------------------------------------
abbrev.c, alloc.c, bytecode.c, casefiddle.c, device-msw.c, device-x.c, dired-msw.c, doc.c, doprnt.c, dragdrop.c, editfns.c, emodules.c, file-coding.c, fileio.c, filelock.c, fns.c, glyphs-eimage.c, glyphs-gtk.c, glyphs-msw.c, glyphs-x.c, gui-msw.c, gui-x.c, imgproc.c, intl-win32.c, lread.c, menubar-gtk.c, menubar.c, nt.c, objects-msw.c, objects-x.c, print.c, process-nt.c, process-unix.c, process.c, realpath.c, redisplay.c, search.c, select-common.c, symbols.c, sysdep.c, syswindows.h, text.c, text.h, ui-byhand.c: New macros {alloca,xnew}_{itext,{i,ext,raw,bin,asc}bytes} for
more convenient allocation of these commonly requested items.
Modify functions to use alloca_ibytes, alloca_array, alloca_extbytes,
xnew_ibytes, etc. also XREALLOC_ARRAY, xnew.
alloc.c: Rewrite the allocation functions to factor out repeated code.
Add assertions for freeing dumped data.
lisp.h: Moved down and consolidated with other allocation stuff.
lisp.h, dynarr.c: New functions for allocation that's very efficient when mostly in
LIFO order.
lisp.h, text.c, text.h: Factor out some stuff for general use by alloca()-conversion funs.
text.h, lisp.h: Fill out convenience routines for allocating various kinds of
bytes and put them in lisp.h. Use them in place of xmalloc(),
ALLOCA().
text.h: Fill out the convenience functions so the _MALLOC() kinds match
the alloca() kinds.
---------------------------------------------------------------
ERROR-CHECKING
---------------------------------------------------------------
text.h: Create ASSERT_ASCTEXT_ASCII() and ASSERT_ASCTEXT_ASCII_LEN()
from similar Eistring checkers and change the Eistring checkers to
use them instead.
---------------------------------------------------------------
MACROS IN LISP.H
---------------------------------------------------------------
lisp.h: Redo GCPRO declarations. Create a "base" set of functions that can
be used to generate any kind of gcpro sets -- regular, ngcpro,
nngcpro, private ones used in GC_EXTERNAL_LIST_LOOP_2.
buffer.c, callint.c, chartab.c, console-msw.c, device-x.c, dialog-msw.c, dired.c, extents.c, ui-gtk.c, rangetab.c, nt.c, mule-coding.c, minibuf.c, menubar-msw.c, menubar.c, menubar-gtk.c, lread.c, lisp.h, gutter.c, glyphs.c, glyphs-widget.c, fns.c, fileio.c, file-coding.c, specifier.c: Eliminate EXTERNAL_LIST_LOOP, which does not check for circularities.
Use EXTERNAL_LIST_LOOP_2 instead or EXTERNAL_LIST_LOOP_3
or EXTERNAL_PROPERTY_LIST_LOOP_3 or GC_EXTERNAL_LIST_LOOP_2
(new macro). Removed/redid comments on EXTERNAL_LIST_LOOP.
---------------------------------------------------------------
SPACING FIXES
---------------------------------------------------------------
callint.c, hftctl.c, number-gmp.c, process-unix.c: Spacing fixes.
---------------------------------------------------------------
FIX FOR GEOMETRY PROBLEM IN FIRST FRAME
---------------------------------------------------------------
unicode.c: Add workaround for newlib bug in sscanf() [should be fixed by
release 1.5.12 of Cygwin].
toolbar.c: bug fix for problem of initial frame being 77 chars wide on Windows.
will be overridden by my other ws.
---------------------------------------------------------------
FIX FOR LEAKING PROCESS HANDLES:
---------------------------------------------------------------
process-nt.c: Fixes for leaking handles. Inspired by work done by Adrian Aichner
<adrian@xemacs.org>.
---------------------------------------------------------------
FIX FOR CYGWIN BUG (Unicode-related):
---------------------------------------------------------------
unicode.c: Add workaround for newlib bug in sscanf() [should be fixed by
release 1.5.12 of Cygwin].
---------------------------------------------------------------
WARNING FIXES:
---------------------------------------------------------------
console-stream.c: `reinit' is unused.
compiler.h, event-msw.c, frame-msw.c, intl-encap-win32.c, text.h: Add stuff to deal with ANSI-aliasing warnings I got.
regex.c: Gather includes together to avoid warning.
---------------------------------------------------------------
CHANGES TO INITIALIZATION ROUTINES:
---------------------------------------------------------------
buffer.c, emacs.c, console.c, debug.c, device-x.c, device.c, dragdrop.c, emodules.c, eval.c, event-Xt.c, event-gtk.c, event-msw.c, event-stream.c, event-tty.c, events.c, extents.c, faces.c, file-coding.c, fileio.c, font-lock.c, frame-msw.c, glyphs-widget.c, glyphs.c, gui-x.c, insdel.c, lread.c, lstream.c, menubar-gtk.c, menubar-x.c, minibuf.c, mule-wnnfns.c, objects-msw.c, objects.c, print.c, scrollbar-x.c, search.c, select-x.c, text.c, undo.c, unicode.c, window.c, symsinit.h: Call reinit_*() functions directly from emacs.c, for clarity.
Factor out some redundant init code. Move disallowed stuff
that had crept into vars_of_glyphs() into complex_vars_of_glyphs().
Call init_eval_semi_early() from eval.c not in the middle of
vars_of_() in emacs.c since there should be no order dependency
in the latter calls.
---------------------------------------------------------------
ARMAGEDDON:
---------------------------------------------------------------
alloc.c, emacs.c, lisp.h, print.c: Rename inhibit_non_essential_printing_operations to
inhibit_non_essential_conversion_operations.
text.c: Assert on !inhibit_non_essential_conversion_operations.
console-msw.c, print.c: Don't do conversion in SetConsoleTitle or FindWindow to avoid
problems during armageddon. Put #errors for NON_ASCII_INTERNAL_FORMAT
in places where problems would arise.
---------------------------------------------------------------
CHANGES TO THE BUILD PROCEDURE:
---------------------------------------------------------------
config.h.in, s/cxux.h, s/usg5-4-2.h, m/powerpc.h: Add comment about correct ordering of this file.
Rearrange everything to follow this -- put all #undefs together
and before the s&m files. Add undefs for HAVE_ALLOCA, C_ALLOCA,
BROKEN_ALLOCA_IN_FUNCTION_CALLS, STACK_DIRECTION. Remove unused
HAVE_STPCPY, HAVE_GETWD, HAVE_SETLOCALE.
m/gec63.h: Deleted; totally broken, not used at all, not in FSF.
m/7300.h, m/acorn.h, m/alliant-2800.h, m/alliant.h, m/altos.h, m/amdahl.h, m/apollo.h, m/att3b.h, m/aviion.h, m/celerity.h, m/clipper.h, m/cnvrgnt.h, m/convex.h, m/cydra5.h, m/delta.h, m/delta88k.h, m/dpx2.h, m/elxsi.h, m/ews4800r.h, m/gould.h, m/hp300bsd.h, m/hp800.h, m/hp9000s300.h, m/i860.h, m/ibmps2-aix.h, m/ibmrs6000.h, m/ibmrt-aix.h, m/ibmrt.h, m/intel386.h, m/iris4d.h, m/iris5d.h, m/iris6d.h, m/irist.h, m/isi-ov.h, m/luna88k.h, m/m68k.h, m/masscomp.h, m/mg1.h, m/mips-nec.h, m/mips-siemens.h, m/mips.h, m/news.h, m/nh3000.h, m/nh4000.h, m/ns32000.h, m/orion105.h, m/pfa50.h, m/plexus.h, m/pmax.h, m/powerpc.h, m/pyrmips.h, m/sequent-ptx.h, m/sequent.h, m/sgi-challenge.h, m/symmetry.h, m/tad68k.h, m/tahoe.h, m/targon31.h, m/tekxd88.h, m/template.h, m/tower32.h, m/tower32v3.h, m/ustation.h, m/vax.h, m/wicat.h, m/xps100.h: Delete C_ALLOCA, HAVE_ALLOCA, STACK_DIRECTION,
BROKEN_ALLOCA_IN_FUNCTION_CALLS. All of this is auto-detected.
When in doubt, I followed recent FSF sources, which also have
these things deleted.
author | ben |
---|---|
date | Thu, 04 Nov 2004 23:08:28 +0000 |
parents | 0dfff19d20da |
children | d240e1ef5356 |
rev | line source |
---|---|
428 | 1 /* linuxplay.c - play a sound file on the speaker |
2 ** | |
3 ** Copyright (C) 1995,96 by Markus Gutschke (gutschk@math.uni-muenster.de) | |
4 ** This is version 1.3 of linuxplay.c, with platform-independent functions | |
5 ** moved to a different file by Robert Bihlmeyer <robbe@orcus.priv.at>. | |
6 ** | |
7 ** Parts of this code were inspired by sunplay.c, which is copyright 1989 by | |
8 ** Jef Poskanzer and 1991,92 by Jamie Zawinski; c.f. sunplay.c for further | |
9 ** information. | |
10 ** | |
11 ** Permission to use, copy, modify, and distribute this software and its | |
12 ** documentation for any purpose and without fee is hereby granted, provided | |
13 ** that the above copyright notice appear in all copies and that both that | |
14 ** copyright notice and this permission notice appear in supporting | |
15 ** documentation. This software is provided "as is" without express or | |
16 ** implied warranty. | |
17 ** | |
18 ** Changelog: | |
19 ** 1.0 -- first release; supports SunAudio, Wave and RAW file formats | |
20 ** detects (and rejects) VOC file format | |
21 ** tested with PC-Speaker driver only | |
22 ** 1.1 -- fixed bug with playback of stereo Wave files | |
23 ** fixed VOC file detection | |
24 ** fixed mono/8bit conversion | |
25 ** cleaned up mixer programming (c.f. VoxWare-SDK) | |
26 ** tested with PC-Speaker driver and with PAS16 soundcard | |
27 ** 1.2 -- first (incompatible) attempt at fixing reliable signal handling | |
28 ** 1.3 -- changed signal handling to use reliable signals; this is done | |
29 ** by including "syssignal.h"; it fixes nasty program crashes | |
30 ** when using native sound in TTY mode. | |
31 ** added support for DEC audio file format (this is basically the | |
32 ** same as Sun audio, but uses little endian format, instead). | |
33 ** strip the header from Sun audio and DEC audio files in order to | |
34 ** prevent noise at beginning of samples (thanks to Thomas Pundt | |
35 ** <pundtt@math.uni-muenster.de> for pointing out this bug and | |
36 ** providing information on the file format). | |
37 ** added a few more conversion routines. | |
38 ** made the code even more tolerant to the limits imposed by some | |
39 ** soundcards and try to accept soundfiles even if they are not | |
40 ** fully conformant to the standard. | |
41 ** 1.4 -- increased header size to 256; I hope there is no sample software | |
42 ** that requires this much. | |
43 ** added code for converting from signed to unsigned format as | |
44 ** some soundcards cannot handle signed 8bit data. | |
45 */ | |
46 | |
47 /* Synched up with: Not in FSF. */ | |
48 | |
563 | 49 /* This file Mule-ized by Ben Wing, 5-15-01. */ |
50 | |
428 | 51 /* XEmacs beta testers say: undef this by default. */ |
52 #undef NOVOLUMECTRLFORMULAW /* Changing the volume for uLaw-encoded | |
53 samples sounds very poor; possibly, | |
54 this is true only for the PC-Snd | |
55 driver, so undefine this symbol at your | |
56 discretion */ | |
57 | |
58 #include <config.h> | |
563 | 59 #include "lisp.h" |
428 | 60 |
61 #include "miscplay.h" | |
563 | 62 #include "sound.h" |
428 | 63 |
64 #include "syssignal.h" | |
65 #include "sysfile.h" | |
563 | 66 #include "systty.h" /* for sys/ioctl.h */ |
67 #include SOUNDCARD_H_FILE /* Path computed by configure */ | |
428 | 68 |
442 | 69 static SIGTYPE (*sighup_handler) (int); |
70 static SIGTYPE (*sigint_handler) (int); | |
428 | 71 |
72 static int mix_fd; | |
73 static int audio_vol; | |
74 static int audio_fd; | |
2367 | 75 static Ascbyte *audio_dev = "/dev/dsp"; |
428 | 76 |
77 /* Intercept SIGINT and SIGHUP in order to close the audio and mixer | |
78 devices before terminating sound output; this requires reliable | |
79 signals as provided by "syssignal.h" */ | |
442 | 80 static SIGTYPE |
81 sighandler (int sig) | |
428 | 82 { |
83 if (mix_fd > 0) { | |
84 if (audio_vol >= 0) { | |
85 ioctl(mix_fd,SOUND_MIXER_WRITE_PCM,&audio_vol); | |
86 audio_vol = -1; } | |
87 if (mix_fd != audio_fd) | |
88 close(mix_fd); | |
89 mix_fd = -1; } | |
90 if (audio_fd > 0) { | |
91 ioctl(audio_fd,SNDCTL_DSP_SYNC,NULL); | |
92 ioctl(audio_fd,SNDCTL_DSP_RESET,NULL); | |
93 close(audio_fd); | |
94 audio_fd = -1; } | |
95 if (sig == SIGHUP && sighup_handler) sighup_handler(sig); | |
96 else if (sig == SIGINT && sigint_handler) sigint_handler(sig); | |
97 else exit(1); | |
98 } | |
99 | |
100 /* Initialize the soundcard and mixer device with the parameters that we | |
101 found in the header of the sound file. If the soundcard is not capable of | |
102 natively supporting the required parameters, then try to set up conversion | |
103 routines. | |
104 The difficulty with setting up the sound card is that the parameters are | |
105 not fully orthogonal; changing one of them might affect some of the | |
106 others, too. Thus we do quite a lot of double checking; actually most of | |
107 this is not needed right now, but it will come in handy, if the kernel's | |
108 sounddriver ever changes or if third-party sounddrivers are used. */ | |
563 | 109 static int |
110 audio_init(int mixx_fd, int auddio_fd, int fmt, int speed, | |
111 int tracks, int *volume, | |
112 size_t (**sndcnv) (void **, size_t *sz, void **)) | |
428 | 113 { |
114 int i,the_speed,the_stereo,the_fmt; | |
115 | |
116 *sndcnv = sndcnvnop; | |
117 | |
118 if (ioctl(auddio_fd,SNDCTL_DSP_SYNC,NULL) < 0) { | |
563 | 119 sound_perror("SNDCTL_DSP_SYNC"); |
428 | 120 return(0); } |
121 | |
122 /* Initialize sound hardware with preferred parameters */ | |
123 | |
124 /* If the sound hardware cannot support 16 bit format or requires a | |
125 different byte sex then try to drop to 8 bit format */ | |
126 | |
127 the_fmt = fmt; | |
128 if(ioctl(audio_fd,SNDCTL_DSP_SETFMT,&the_fmt) < 0) { | |
563 | 129 sound_perror("SNDCTL_DSP_SETFMT"); |
428 | 130 return(0); |
131 } | |
132 | |
133 if (fmt != the_fmt) { | |
134 if (fmt == AFMT_S16_LE || fmt == AFMT_S16_BE) { | |
135 *sndcnv = fmt == AFMT_S16_BE ? sndcnv2byteBE : sndcnv2byteLE; | |
136 if (((i=fmt=AFMT_U8),ioctl(audio_fd,SNDCTL_DSP_SETFMT,&i)) < 0 || | |
137 fmt != i || ioctl(audio_fd,SNDCTL_DSP_SETFMT,&the_fmt) < 0 || | |
138 fmt != the_fmt) { | |
563 | 139 sound_perror("SNDCTL_DSP_SETFMT"); |
428 | 140 return(0); } } |
141 else if (fmt == AFMT_MU_LAW && the_fmt == AFMT_U8 ) { | |
142 /* the kernel will convert for us */ } | |
143 else { | |
563 | 144 sound_perror("SNDCTL_DSP_SETFMT"); |
428 | 145 return(0); } } |
146 else if (fmt == AFMT_S8) { | |
147 *sndcnv = sndcnv2unsigned; | |
148 if (((i=fmt=AFMT_U8),ioctl(audio_fd,SNDCTL_DSP_SETFMT,&i)) < 0 || | |
149 fmt != i || ioctl(audio_fd,SNDCTL_DSP_SETFMT,&the_fmt) < 0 || | |
150 fmt != the_fmt) { | |
563 | 151 sound_perror("SNDCTRL_DSP_SETFMT"); |
428 | 152 return(0); } } |
153 | |
154 /* The PCSP driver does not support reading of the sampling rate via the | |
155 SOUND_PCM_READ_RATE ioctl; determine "the_speed" here */ | |
156 the_speed = speed; ioctl(audio_fd,SNDCTL_DSP_SPEED,&the_speed); | |
157 /* The PCSP driver does not support reading of the mono/stereo flag, thus | |
158 we assume, that failure to change this mode means we are in mono mode */ | |
159 if (((i = (the_stereo = tracks)-1),ioctl(audio_fd,SNDCTL_DSP_STEREO,&i)) < 0) | |
160 the_stereo = 1; | |
161 | |
162 /* Try to request stereo playback (if needed); if this cannot be supported | |
163 by the hardware, then install conversion routines for mono playback */ | |
164 | |
165 /* This ioctl will fail if we use the PCSP driver; thus the value of | |
166 "the_stereo" is still unchanged */ | |
167 ioctl(audio_fd,SOUND_PCM_READ_CHANNELS,&the_stereo); | |
168 if (tracks != the_stereo) { | |
169 if (tracks == 2) { | |
170 tracks = 1; | |
171 *sndcnv = *sndcnv == sndcnv2byteLE ? sndcnv2monobyteLE : | |
172 *sndcnv == sndcnv2byteBE ? sndcnv2monobyteBE : | |
173 *sndcnv == sndcnv2unsigned ? sndcnv2monounsigned : | |
174 the_fmt == AFMT_S16_LE ? sndcnv16_2monoLE : | |
175 the_fmt == AFMT_S16_BE ? sndcnv16_2monoBE : | |
176 the_fmt == AFMT_S8 ? sndcnv8S_2mono : | |
177 the_fmt == AFMT_U8 ? sndcnv8U_2mono : | |
178 the_fmt == AFMT_MU_LAW ? sndcnvULaw_2mono : NULL; | |
179 if (*sndcnv == NULL) { /* this should not happen */ | |
563 | 180 sound_perror("SNDCTL_DSP_STEREO"); |
428 | 181 return(0); } |
182 /* Switch to mono mode */ | |
183 if (((i = 0),ioctl(audio_fd,SNDCTL_DSP_STEREO,&i)) < 0 || i) { | |
563 | 184 sound_perror("SNDCTL_DSP_STEREO"); |
428 | 185 return(0); } |
186 /* Now double check that everything is set as expected */ | |
187 if (((i = AFMT_QUERY),ioctl(audio_fd,SNDCTL_DSP_SETFMT,&i)) < 0 || | |
188 (i != the_fmt && | |
189 (((i=the_fmt),ioctl(audio_fd,SNDCTL_DSP_SETFMT,&i)) < 0 || | |
190 i != the_fmt || | |
191 ((i = AFMT_QUERY),ioctl(audio_fd,SNDCTL_DSP_SETFMT,&i)) < 0 || | |
192 i != the_fmt)) || | |
193 (ioctl(audio_fd,SOUND_PCM_READ_CHANNELS,&i) >= 0 && | |
194 i != 1)) { | |
195 /* There was no way that we could set the soundcard to a meaningful | |
196 mode */ | |
563 | 197 sound_perror("SNDCTL_DSP_SETFMT and SNDCTL_DSP_STEREO"); |
428 | 198 return(0); } } |
199 else { | |
200 /* Somebody set the soundcard to stereo even though we requested | |
201 mono; this should not happen... */ | |
202 if (((i = the_stereo = tracks),ioctl(audio_fd,SNDCTL_DSP_STEREO,&i))<0 || | |
203 i != the_stereo-1) { | |
563 | 204 sound_perror("SNDCTL_DSP_STEREO"); |
428 | 205 return(0); } |
206 if (((i = AFMT_QUERY),ioctl(audio_fd,SNDCTL_DSP_SETFMT,&i)) < 0 || | |
207 i != the_fmt) { | |
563 | 208 sound_perror("SNDCTL_DSP_SETFMT"); |
428 | 209 return(0); } } } |
210 | |
211 /* Fail if deviations from desired sampling frequency are too big */ | |
212 | |
213 /* This ioctl will fail if we use the PCSP driver; thus the value of | |
214 "the_speed" is still unchanged */ | |
215 ioctl(audio_fd,SOUND_PCM_READ_RATE,&the_speed); | |
216 if (speed*14 < the_speed*10 || speed*6 > the_speed*10) { | |
563 | 217 Extbyte buffer[256]; |
428 | 218 sprintf(buffer,"SNDCTL_DSP_SPEED (req: %d, rtn: %d)",speed,the_speed); |
563 | 219 sound_perror(buffer); |
428 | 220 return(0); } |
221 | |
222 /* Use the mixer device for setting the playback volume */ | |
223 if (mixx_fd > 0) { | |
224 int vol = *volume & 0xFF; | |
225 if (ioctl(mixx_fd,SOUND_MIXER_READ_PCM,volume) < 0) | |
226 *volume = -1; | |
227 if (vol < 0) vol = 0; else if (vol > 100) vol = 100; | |
228 #ifdef NOVOLUMECTRLFORMULAW | |
229 if (fmt == AFMT_MU_LAW) | |
230 vol = 100; | |
231 #endif | |
232 vol |= 256*vol; | |
233 /* Do not signal an error, if volume control is unavailable! */ | |
234 ioctl(mixx_fd,SOUND_MIXER_WRITE_PCM,&vol); } | |
235 | |
236 #if defined(LINUXPLAYSTANDALONE) && 1 | |
237 /* Debugging output is displayed only when compiled as stand-alone version */ | |
238 {int the_volume; | |
239 the_fmt = AFMT_QUERY; | |
240 ioctl(audio_fd,SNDCTL_DSP_SETFMT,&the_fmt); | |
241 ioctl(auddio_fd,SOUND_PCM_READ_CHANNELS,&the_stereo); | |
242 ioctl(auddio_fd,SOUND_PCM_READ_RATE,&the_speed); | |
243 ioctl(mixx_fd,SOUND_MIXER_READ_PCM,&the_volume); | |
244 fprintf(stderr,"%s, %s, %dHz, L:%d/R:%d\n", | |
245 the_fmt == AFMT_MU_LAW ? "AFMT_MU_LAW" : | |
246 the_fmt == AFMT_A_LAW ? "AFMT_A_LAW" : | |
247 the_fmt == AFMT_IMA_ADPCM ? "AFMT_IMA_ADPCM" : | |
248 the_fmt == AFMT_U8 ? "AFMT_U8" : | |
249 the_fmt == AFMT_S16_LE ? "AFMT_S16_LE" : | |
250 the_fmt == AFMT_S16_BE ? "AFMT_S16_BE" : | |
251 the_fmt == AFMT_S8 ? "AFMT_S8" : | |
252 the_fmt == AFMT_U16_LE ? "AFMT_U16_LE" : | |
253 the_fmt == AFMT_U16_BE ? "AFMT_U16_BE" : | |
254 the_fmt == AFMT_MPEG ? "AFMT_MPEG" : | |
255 "AFMT_???", | |
256 the_stereo == 2 ? "stereo" : "mono", | |
257 the_speed, | |
258 the_volume / 256, the_volume % 256); } | |
259 #endif | |
260 | |
261 return(1); | |
262 } | |
263 | |
264 /* XEmacs requires code both for playback of pre-loaded data and for playback | |
442 | 265 from a soundfile; we use one function for both cases. |
266 | |
267 Returns 1 on succes. 0 otherwise. | |
268 */ | |
563 | 269 static int |
2367 | 270 linux_play_data_or_file(int fd, Binbyte *data, |
563 | 271 int length, int volume) |
428 | 272 { |
273 size_t (*parsesndfile)(void **dayta,size_t *sz,void **outbuf); | |
274 size_t (*sndcnv)(void **dayta,size_t *sz,void **); | |
275 fmtType ffmt; | |
276 int fmt,speed,tracks; | |
2271 | 277 void *pptr, *optr, *cptr, *sptr; |
428 | 278 int wrtn,rrtn,crtn,prtn; |
2367 | 279 Binbyte sndbuf[SNDBUFSZ]; |
428 | 280 |
281 /* We need to read at least the header information before we can start | |
282 doing anything */ | |
283 if (!data || length < HEADERSZ) { | |
442 | 284 if (fd < 0) return 0; |
428 | 285 else { |
647 | 286 length = read (fd,sndbuf,SNDBUFSZ); |
428 | 287 if (length < HEADERSZ) |
442 | 288 return 0; |
428 | 289 data = sndbuf; |
290 length = SNDBUFSZ; } | |
291 } | |
292 | |
293 ffmt = analyze_format(data,&fmt,&speed,&tracks,&parsesndfile); | |
294 | |
295 if (ffmt != fmtRaw && ffmt != fmtSunAudio && ffmt != fmtWave) { | |
563 | 296 sound_warn("Unsupported file format (neither RAW, nor Sun/DECAudio, nor WAVE)"); |
442 | 297 return 0; } |
428 | 298 |
299 /* The VoxWare-SDK discourages opening /dev/audio; opening /dev/dsp and | |
300 properly initializing it via ioctl() is preferred */ | |
301 if ((audio_fd=open(audio_dev, O_WRONLY | O_NONBLOCK, 0)) < 0) { | |
442 | 302 /* JV. Much too verbose. In addition this can crash. See NOTE: in |
303 Fplay_sound | |
563 | 304 sound_perror(audio_dev); */ |
428 | 305 if (mix_fd > 0 && mix_fd != audio_fd) { close(mix_fd); mix_fd = -1; } |
442 | 306 return 0; } |
428 | 307 |
308 /* The VoxWare-SDK discourages direct manipulation of the mixer device as | |
309 this could lead to problems, when multiple sound cards are installed */ | |
310 mix_fd = audio_fd; | |
311 | |
613 | 312 sighup_handler = EMACS_SIGNAL (SIGHUP, sighandler); |
313 sigint_handler = EMACS_SIGNAL (SIGINT, sighandler); | |
428 | 314 |
315 if (!audio_init(mix_fd,audio_fd,fmt,speed,tracks,&volume,&sndcnv)) | |
316 goto END_OF_PLAY; | |
317 audio_vol = volume; | |
318 | |
319 reset_parsestate(); | |
320 | |
321 /* Mainloop: read a block of data, parse its contents, perform all | |
322 the necessary conversions and output it to the sound | |
323 device; repeat until all data has been processed */ | |
324 rrtn = length; | |
325 do { | |
2271 | 326 for (pptr = data; (prtn = parsesndfile(&pptr,(size_t *)&rrtn,&optr)) > 0; ) |
327 for (cptr = optr; (crtn = sndcnv(&cptr,(size_t *) &prtn,&sptr)) > 0; ) { | |
428 | 328 for (;;) { |
329 if ((wrtn = write(audio_fd,sptr,crtn)) < 0) { | |
563 | 330 sound_perror("write"); goto END_OF_PLAY; } |
428 | 331 else if (wrtn) break; |
332 else if (ioctl(audio_fd,SNDCTL_DSP_SYNC,NULL) < 0) { | |
563 | 333 sound_perror("SNDCTL_DSP_SYNC"); goto END_OF_PLAY; } } |
428 | 334 if (wrtn != crtn) { |
563 | 335 Extbyte buf[255]; |
428 | 336 sprintf(buf,"play: crtn = %d, wrtn = %d",crtn,wrtn); |
563 | 337 sound_warn(buf); |
428 | 338 goto END_OF_PLAY; } } |
339 if (fd >= 0) { | |
340 if ((rrtn = read(fd,sndbuf,SNDBUFSZ)) < 0) { | |
563 | 341 sound_perror("read"); goto END_OF_PLAY; } } |
428 | 342 else |
343 break; | |
344 } while (rrtn > 0); | |
345 | |
346 if (ffmt == fmtWave) | |
347 parse_wave_complete(); | |
442 | 348 |
428 | 349 |
350 END_OF_PLAY: | |
351 /* Now cleanup all used resources */ | |
352 | |
353 ioctl(audio_fd,SNDCTL_DSP_SYNC,NULL); | |
354 ioctl(audio_fd,SNDCTL_DSP_RESET,NULL); | |
355 | |
613 | 356 EMACS_SIGNAL (SIGHUP,sighup_handler); |
357 EMACS_SIGNAL (SIGINT,sigint_handler); | |
428 | 358 |
359 if (mix_fd > 0) { | |
360 if (audio_vol >= 0) { | |
361 ioctl(mix_fd,SOUND_MIXER_WRITE_PCM,&audio_vol); | |
362 audio_vol = -1; } | |
363 if (mix_fd != audio_fd) | |
364 close(mix_fd); | |
365 mix_fd = -1; } | |
366 | |
367 close(audio_fd); | |
368 audio_fd = -1; | |
369 | |
442 | 370 return 1; |
428 | 371 } |
372 | |
373 /* Call "linux_play_data_or_file" with the appropriate parameters for | |
374 playing a soundfile */ | |
563 | 375 void |
376 play_sound_file (Extbyte *sound_file, int volume) | |
428 | 377 { |
378 int fd; | |
379 | |
380 if ((fd=open(sound_file,O_RDONLY,0)) < 0) { | |
563 | 381 sound_perror(sound_file); |
428 | 382 return; } |
383 linux_play_data_or_file(fd,NULL,0,volume); | |
384 close(fd); | |
385 return; | |
386 } | |
387 | |
388 /* Call "linux_play_data_or_file" with the appropriate parameters for | |
389 playing pre-loaded data */ | |
563 | 390 int |
2367 | 391 play_sound_data (Binbyte *data, int length, int volume) |
428 | 392 { |
442 | 393 return linux_play_data_or_file(-1,data,length,volume); |
428 | 394 } |