Ported PulseAudio target from 1.2 to 1.3 interfaces, and added it to the trunk.
Fixes Bugzilla #439. --HG-- extra : convert_revision : svn%3Ac70aab31-4412-0410-b14c-859654838e24/trunk%402633
This commit is contained in:
Ryan C. Gordon
parent
4c88330ae8
commit
c09d2e0f0d
5 changed files with 507 additions and 0 deletions
58
configure.in
58
configure.in
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@ -644,6 +644,63 @@ AC_HELP_STRING([--enable-esd-shared], [dynamically load ESD audio support [[defa
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fi
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fi
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}
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}
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dnl Find PulseAudio
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CheckPulseAudio()
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{
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AC_ARG_ENABLE(pulseaudio,
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AC_HELP_STRING([--enable-pulseaudio], [use PulseAudio [[default=yes]]]),
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, enable_pulseaudio=yes)
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if test x$enable_audio = xyes -a x$enable_pulseaudio = xyes; then
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audio_pulseaudio=no
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PULSEAUDIO_REQUIRED_VERSION=0.9
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AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
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AC_MSG_CHECKING(for PulseAudio $PULSEAUDIO_REQUIRED_VERSION support)
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if test x$PKG_CONFIG != xno; then
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if $PKG_CONFIG --atleast-pkgconfig-version 0.7 && $PKG_CONFIG --atleast-version $PULSEAUDIO_REQUIRED_VERSION libpulse-simple; then
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PULSEAUDIO_CFLAGS=`$PKG_CONFIG --cflags libpulse-simple`
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PULSEAUDIO_LIBS=`$PKG_CONFIG --libs libpulse-simple`
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audio_pulseaudio=yes
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fi
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fi
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AC_MSG_RESULT($audio_pulseaudio)
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if test x$audio_pulseaudio = xyes; then
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AC_ARG_ENABLE(pulseaudio-shared,
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AC_HELP_STRING([--enable-pulseaudio-shared], [dynamically load PulseAudio support [[default=yes]]]),
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, enable_pulseaudio_shared=yes)
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if test "x`echo $PULSEAUDIO_LIBS | grep -- -L`" = "x"; then
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if test "x`ls /lib/libpulse-simple.so.* 2> /dev/null`" != "x"; then
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PULSEAUDIO_LIBS="-L/lib $PULSEAUDIO_LIBS"
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elif test "x`ls /usr/lib/libpulse-simple.so.* 2> /dev/null`" != "x"; then
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PULSEAUDIO_LIBS="-L/usr/lib $PULSEAUDIO_LIBS"
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elif test "x`ls /usr/local/lib/libpulse-simple.so.* 2> /dev/null`" != "x"; then
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PULSEAUDIO_LIBS="-L/usr/local/lib $PULSEAUDIO_LIBS"
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fi
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fi
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pulseaudio_lib_spec=`echo $PULSEAUDIO_LIBS | sed 's/.*-L\([[^ ]]*\).*/\1\/libpulse-simple.so.*/'`
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pulseaudio_lib=`ls -- $pulseaudio_lib_spec | sed 's/.*\/\(.*\)/\1/; q'`
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echo "-- $pulseaudio_lib_spec -> $pulseaudio_lib"
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AC_DEFINE(SDL_AUDIO_DRIVER_PULSEAUDIO)
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SOURCES="$SOURCES $srcdir/src/audio/pulseaudio/*.c"
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EXTRA_CFLAGS="$EXTRA_CFLAGS $PULSEAUDIO_CFLAGS"
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if test x$have_loadso != xyes && \
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test x$enable_pulseaudio_shared = xyes; then
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AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic PulseAudio loading])
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fi
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if test x$have_loadso = xyes && \
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test x$enable_pulseaudio_shared = xyes && test x$pulseaudio_lib != x; then
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AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_PULSEAUDIO_DYNAMIC, "$pulseaudio_lib")
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else
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EXTRA_LDFLAGS="$EXTRA_LDFLAGS $PULSEAUDIO_LIBS"
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fi
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have_audio=yes
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fi
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fi
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}
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CheckARTSC()
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CheckARTSC()
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{
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{
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AC_ARG_ENABLE(arts,
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AC_ARG_ENABLE(arts,
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@ -2065,6 +2122,7 @@ case "$host" in
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CheckDMEDIA
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CheckDMEDIA
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CheckMME
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CheckMME
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CheckALSA
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CheckALSA
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CheckPulseAudio
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CheckARTSC
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CheckARTSC
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CheckESD
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CheckESD
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CheckNAS
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CheckNAS
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@ -159,6 +159,8 @@
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#undef SDL_AUDIO_DRIVER_ALSA_DYNAMIC
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#undef SDL_AUDIO_DRIVER_ALSA_DYNAMIC
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#undef SDL_AUDIO_DRIVER_ARTS
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#undef SDL_AUDIO_DRIVER_ARTS
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#undef SDL_AUDIO_DRIVER_ARTS_DYNAMIC
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#undef SDL_AUDIO_DRIVER_ARTS_DYNAMIC
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#undef SDL_AUDIO_DRIVER_PULSEAUDIO
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#undef SDL_AUDIO_DRIVER_PULSEAUDIO_DYNAMIC
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#undef SDL_AUDIO_DRIVER_BEOSAUDIO
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#undef SDL_AUDIO_DRIVER_BEOSAUDIO
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#undef SDL_AUDIO_DRIVER_BSD
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#undef SDL_AUDIO_DRIVER_BSD
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#undef SDL_AUDIO_DRIVER_COREAUDIO
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#undef SDL_AUDIO_DRIVER_COREAUDIO
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@ -47,6 +47,7 @@ extern AudioBootStrap BSD_AUDIO_bootstrap;
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extern AudioBootStrap DSP_bootstrap;
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extern AudioBootStrap DSP_bootstrap;
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extern AudioBootStrap DMA_bootstrap;
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extern AudioBootStrap DMA_bootstrap;
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extern AudioBootStrap ALSA_bootstrap;
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extern AudioBootStrap ALSA_bootstrap;
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extern AudioBootStrap PULSEAUDIO_bootstrap;
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extern AudioBootStrap QNXNTOAUDIO_bootstrap;
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extern AudioBootStrap QNXNTOAUDIO_bootstrap;
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extern AudioBootStrap SUNAUDIO_bootstrap;
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extern AudioBootStrap SUNAUDIO_bootstrap;
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extern AudioBootStrap DMEDIA_bootstrap;
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extern AudioBootStrap DMEDIA_bootstrap;
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@ -83,6 +84,9 @@ static AudioBootStrap *bootstrap[] = {
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#if SDL_AUDIO_DRIVER_ALSA
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#if SDL_AUDIO_DRIVER_ALSA
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&ALSA_bootstrap,
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&ALSA_bootstrap,
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#endif
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#endif
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#if SDL_AUDIO_DRIVER_PULSEAUDIO
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&PULSEAUDIO_bootstrap,
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#endif
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#if SDL_AUDIO_DRIVER_QNXNTO
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#if SDL_AUDIO_DRIVER_QNXNTO
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&QNXNTOAUDIO_bootstrap,
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&QNXNTOAUDIO_bootstrap,
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#endif
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#endif
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389
src/audio/pulseaudio/SDL_pulseaudio.c
Normal file
389
src/audio/pulseaudio/SDL_pulseaudio.c
Normal file
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@ -0,0 +1,389 @@
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/*
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SDL - Simple DirectMedia Layer
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Copyright (C) 1997-2006 Sam Lantinga
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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Sam Lantinga
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slouken@libsdl.org
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*/
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/*
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The PulseAudio target for SDL 1.3 is based on the 1.3 arts target, with
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the appropriate parts replaced with the 1.2 PulseAudio target code. This
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was the cleanest way to move it to 1.3. The 1.2 target was written by
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Stéphan Kochen: stephan .a.t. kochen.nl
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*/
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#include "SDL_config.h"
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/* Allow access to a raw mixing buffer */
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#ifdef HAVE_SIGNAL_H
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#include <signal.h>
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#endif
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#include <unistd.h>
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#include <sys/types.h>
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#include <errno.h>
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#include <pulse/simple.h>
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#include "SDL_timer.h"
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#include "SDL_audio.h"
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#include "../SDL_audiomem.h"
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#include "../SDL_audio_c.h"
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#include "SDL_pulseaudio.h"
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#ifdef SDL_AUDIO_DRIVER_PULSEAUDIO_DYNAMIC
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#include "SDL_name.h"
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#include "SDL_loadso.h"
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#else
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#define SDL_NAME(X) X
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#endif
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/* The tag name used by pulse audio */
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#define PULSEAUDIO_DRIVER_NAME "pulseaudio"
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#ifdef SDL_AUDIO_DRIVER_PULSEAUDIO_DYNAMIC
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static const char *pulse_library = SDL_AUDIO_DRIVER_PULSEAUDIO_DYNAMIC;
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static void *pulse_handle = NULL;
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/* !!! FIXME: I hate this SDL_NAME clutter...it makes everything so messy! */
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static pa_simple* (*SDL_NAME(pa_simple_new))(
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const char *server,
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const char *name,
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pa_stream_direction_t dir,
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const char *dev,
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const char *stream_name,
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const pa_sample_spec *ss,
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const pa_channel_map *map,
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const pa_buffer_attr *attr,
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int *error
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);
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static void (*SDL_NAME(pa_simple_free))(pa_simple *s);
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static int (*SDL_NAME(pa_simple_drain))(pa_simple *s, int *error);
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static int (*SDL_NAME(pa_simple_write))(
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pa_simple *s,
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const void *data,
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size_t length,
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int *error
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);
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static pa_channel_map* (*SDL_NAME(pa_channel_map_init_auto))(
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pa_channel_map *m,
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unsigned channels,
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pa_channel_map_def_t def
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);
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#define SDL_PULSEAUDIO_SYM(x) { #x, (void **) (char *) &SDL_NAME(x) }
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static struct {
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const char *name;
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void **func;
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} pulse_functions[] = {
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/* *INDENT-OFF* */
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SDL_PULSEAUDIO_SYM(pa_simple_new),
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SDL_PULSEAUDIO_SYM(pa_simple_free),
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SDL_PULSEAUDIO_SYM(pa_simple_drain),
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SDL_PULSEAUDIO_SYM(pa_simple_write),
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SDL_PULSEAUDIO_SYM(pa_channel_map_init_auto),
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/* *INDENT-ON* */
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};
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#undef SDL_PULSEAUDIO_SYM
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static void
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UnloadPulseLibrary()
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{
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if (pulse_handle != NULL) {
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SDL_UnloadObject(pulse_handle);
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pulse_handle = NULL;
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}
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}
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static int
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LoadPulseLibrary(void)
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{
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int i, retval = -1;
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if (pulse_handle == NULL) {
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pulse_handle = SDL_LoadObject(pulse_library);
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if (pulse_handle != NULL) {
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retval = 0;
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for (i = 0; i < SDL_arraysize(pulse_functions); ++i) {
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*pulse_functions[i].func =
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SDL_LoadFunction(pulse_handle, pulse_functions[i].name);
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if (!*pulse_functions[i].func) {
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retval = -1;
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UnloadPulseLibrary();
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break;
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}
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}
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}
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}
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return retval;
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}
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#else
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static void
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UnloadPulseLibrary()
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{
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return;
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}
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static int
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LoadPulseLibrary(void)
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{
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return 0;
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}
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#endif /* SDL_AUDIO_DRIVER_PULSEAUDIO_DYNAMIC */
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/* This function waits until it is possible to write a full sound buffer */
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static void
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PULSEAUDIO_WaitDevice(_THIS)
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{
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Sint32 ticks;
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/* Check to see if the thread-parent process is still alive */
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{
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static int cnt = 0;
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/* Note that this only works with thread implementations
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that use a different process id for each thread.
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*/
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/* Check every 10 loops */
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if (this->hidden->parent && (((++cnt) % 10) == 0)) {
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if (kill(this->hidden->parent, 0) < 0) {
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this->enabled = 0;
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}
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}
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}
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/* Use timer for general audio synchronization */
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ticks =
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((Sint32) (this->hidden->next_frame - SDL_GetTicks())) - FUDGE_TICKS;
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if (ticks > 0) {
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SDL_Delay(ticks);
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}
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}
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static void
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PULSEAUDIO_PlayDevice(_THIS)
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{
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/* Write the audio data */
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if ( SDL_NAME(pa_simple_write)(this->hidden->stream, this->hidden->mixbuf,
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this->hidden->mixlen, NULL) != 0 )
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{
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this->enabled = 0;
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}
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}
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static void
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PULSEAUDIO_WaitDone(_THIS)
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{
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SDL_NAME(pa_simple_drain)(this->hidden->stream, NULL);
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}
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static Uint8 *
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PULSEAUDIO_GetDeviceBuf(_THIS)
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{
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return (this->hidden->mixbuf);
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}
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static void
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PULSEAUDIO_CloseDevice(_THIS)
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{
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if (this->hidden != NULL) {
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if (this->hidden->mixbuf != NULL) {
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SDL_FreeAudioMem(this->hidden->mixbuf);
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this->hidden->mixbuf = NULL;
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}
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if (this->hidden->stream) {
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SDL_NAME(pa_simple_drain)(this->hidden->stream, NULL);
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SDL_NAME(pa_simple_free)(this->hidden->stream);
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this->hidden->stream = NULL;
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}
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SDL_free(this->hidden);
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this->hidden = NULL;
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}
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}
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/* !!! FIXME: this could probably be expanded. */
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/* Try to get the name of the program */
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static char *get_progname(void)
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{
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char *progname = NULL;
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#ifdef __LINUX__
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FILE *fp;
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static char temp[BUFSIZ];
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SDL_snprintf(temp, SDL_arraysize(temp), "/proc/%d/cmdline", getpid());
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fp = fopen(temp, "r");
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if ( fp != NULL ) {
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if ( fgets(temp, sizeof(temp)-1, fp) ) {
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progname = SDL_strrchr(temp, '/');
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if ( progname == NULL ) {
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progname = temp;
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} else {
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progname = progname+1;
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}
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}
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fclose(fp);
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}
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#endif
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return(progname);
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}
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static int
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PULSEAUDIO_OpenDevice(_THIS, const char *devname, int iscapture)
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{
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Uint16 test_format;
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pa_sample_spec paspec;
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pa_buffer_attr paattr;
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pa_channel_map pacmap;
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/* Initialize all variables that we clean on shutdown */
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||||||
|
this->hidden = (struct SDL_PrivateAudioData *)
|
||||||
|
SDL_malloc((sizeof *this->hidden));
|
||||||
|
if (this->hidden == NULL) {
|
||||||
|
SDL_OutOfMemory();
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
SDL_memset(this->hidden, 0, (sizeof *this->hidden));
|
||||||
|
|
||||||
|
paspec.format = PA_SAMPLE_INVALID;
|
||||||
|
|
||||||
|
/* Try for a closest match on audio format */
|
||||||
|
for (test_format = SDL_FirstAudioFormat(this->spec.format);
|
||||||
|
(paspec.format == PA_SAMPLE_INVALID) && test_format;) {
|
||||||
|
#ifdef DEBUG_AUDIO
|
||||||
|
fprintf(stderr, "Trying format 0x%4.4x\n", test_format);
|
||||||
|
#endif
|
||||||
|
switch ( test_format ) {
|
||||||
|
case AUDIO_U8:
|
||||||
|
paspec.format = PA_SAMPLE_U8;
|
||||||
|
break;
|
||||||
|
case AUDIO_S16LSB:
|
||||||
|
paspec.format = PA_SAMPLE_S16LE;
|
||||||
|
break;
|
||||||
|
case AUDIO_S16MSB:
|
||||||
|
paspec.format = PA_SAMPLE_S16BE;
|
||||||
|
break;
|
||||||
|
default:
|
||||||
|
paspec.format = PA_SAMPLE_INVALID;
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
if (paspec.format == PA_SAMPLE_INVALID) {
|
||||||
|
test_format = SDL_NextAudioFormat();
|
||||||
|
}
|
||||||
|
}
|
||||||
|
if (paspec.format == PA_SAMPLE_INVALID) {
|
||||||
|
PULSEAUDIO_CloseDevice(this);
|
||||||
|
SDL_SetError("Couldn't find any hardware audio formats");
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
this->spec.format = test_format;
|
||||||
|
|
||||||
|
/* Calculate the final parameters for this audio specification */
|
||||||
|
SDL_CalculateAudioSpec(&this->spec);
|
||||||
|
|
||||||
|
/* Allocate mixing buffer */
|
||||||
|
this->hidden->mixlen = this->spec.size;
|
||||||
|
this->hidden->mixbuf = (Uint8 *) SDL_AllocAudioMem(this->hidden->mixlen);
|
||||||
|
if (this->hidden->mixbuf == NULL) {
|
||||||
|
PULSEAUDIO_CloseDevice(this);
|
||||||
|
SDL_OutOfMemory();
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
SDL_memset(this->hidden->mixbuf, this->spec.silence, this->spec.size);
|
||||||
|
|
||||||
|
paspec.channels = this->spec.channels;
|
||||||
|
paspec.rate = this->spec.freq;
|
||||||
|
|
||||||
|
/* Reduced prebuffering compared to the defaults. */
|
||||||
|
paattr.tlength = this->hidden->mixlen;
|
||||||
|
paattr.minreq = this->hidden->mixlen;
|
||||||
|
paattr.fragsize = this->hidden->mixlen;
|
||||||
|
paattr.prebuf = this->hidden->mixlen;
|
||||||
|
paattr.maxlength = this->hidden->mixlen * 4;
|
||||||
|
|
||||||
|
/* The SDL ALSA output hints us that we use Windows' channel mapping */
|
||||||
|
/* http://bugzilla.libsdl.org/show_bug.cgi?id=110 */
|
||||||
|
SDL_NAME(pa_channel_map_init_auto)(
|
||||||
|
&pacmap, this->spec.channels, PA_CHANNEL_MAP_WAVEEX);
|
||||||
|
|
||||||
|
/* Connect to the PulseAudio server */
|
||||||
|
this->hidden->stream = SDL_NAME(pa_simple_new)(
|
||||||
|
SDL_getenv("PASERVER"), /* server */
|
||||||
|
get_progname(), /* application name */
|
||||||
|
PA_STREAM_PLAYBACK, /* playback mode */
|
||||||
|
SDL_getenv("PADEVICE"), /* device on the server */
|
||||||
|
"Simple DirectMedia Layer", /* stream description */
|
||||||
|
&paspec, /* sample format spec */
|
||||||
|
&pacmap, /* channel map */
|
||||||
|
&paattr, /* buffering attributes */
|
||||||
|
NULL /* error code */
|
||||||
|
);
|
||||||
|
if ( this->hidden->stream == NULL ) {
|
||||||
|
PULSEAUDIO_CloseDevice(this);
|
||||||
|
SDL_SetError("Could not connect to PulseAudio");
|
||||||
|
return(-1);
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Get the parent process id (we're the parent of the audio thread) */
|
||||||
|
this->hidden->parent = getpid();
|
||||||
|
|
||||||
|
/* We're ready to rock and roll. :-) */
|
||||||
|
return 1;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
static void
|
||||||
|
PULSEAUDIO_Deinitialize(void)
|
||||||
|
{
|
||||||
|
UnloadPulseLibrary();
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
static int
|
||||||
|
PULSEAUDIO_Init(SDL_AudioDriverImpl * impl)
|
||||||
|
{
|
||||||
|
if (LoadPulseLibrary() < 0) {
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Set the function pointers */
|
||||||
|
impl->OpenDevice = PULSEAUDIO_OpenDevice;
|
||||||
|
impl->PlayDevice = PULSEAUDIO_PlayDevice;
|
||||||
|
impl->WaitDevice = PULSEAUDIO_WaitDevice;
|
||||||
|
impl->GetDeviceBuf = PULSEAUDIO_GetDeviceBuf;
|
||||||
|
impl->CloseDevice = PULSEAUDIO_CloseDevice;
|
||||||
|
impl->WaitDone = PULSEAUDIO_WaitDone;
|
||||||
|
impl->Deinitialize = PULSEAUDIO_Deinitialize;
|
||||||
|
impl->OnlyHasDefaultOutputDevice = 1;
|
||||||
|
|
||||||
|
return 1;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
AudioBootStrap PULSEAUDIO_bootstrap = {
|
||||||
|
PULSEAUDIO_DRIVER_NAME, "PulseAudio", PULSEAUDIO_Init, 0
|
||||||
|
};
|
||||||
|
|
||||||
|
/* vi: set ts=4 sw=4 expandtab: */
|
||||||
54
src/audio/pulseaudio/SDL_pulseaudio.h
Normal file
54
src/audio/pulseaudio/SDL_pulseaudio.h
Normal file
|
|
@ -0,0 +1,54 @@
|
||||||
|
/*
|
||||||
|
SDL - Simple DirectMedia Layer
|
||||||
|
Copyright (C) 1997-2006 Sam Lantinga
|
||||||
|
|
||||||
|
This library is free software; you can redistribute it and/or
|
||||||
|
modify it under the terms of the GNU Lesser General Public
|
||||||
|
License as published by the Free Software Foundation; either
|
||||||
|
version 2.1 of the License, or (at your option) any later version.
|
||||||
|
|
||||||
|
This library is distributed in the hope that it will be useful,
|
||||||
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||||
|
Lesser General Public License for more details.
|
||||||
|
|
||||||
|
You should have received a copy of the GNU Lesser General Public
|
||||||
|
License along with this library; if not, write to the Free Software
|
||||||
|
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
||||||
|
|
||||||
|
Sam Lantinga
|
||||||
|
slouken@libsdl.org
|
||||||
|
*/
|
||||||
|
#include "SDL_config.h"
|
||||||
|
|
||||||
|
#ifndef _SDL_pulseaudio_h
|
||||||
|
#define _SDL_pulseaudio_h
|
||||||
|
|
||||||
|
#include <pulse/simple.h>
|
||||||
|
|
||||||
|
#include "../SDL_sysaudio.h"
|
||||||
|
|
||||||
|
/* Hidden "this" pointer for the audio functions */
|
||||||
|
#define _THIS SDL_AudioDevice *this
|
||||||
|
|
||||||
|
struct SDL_PrivateAudioData
|
||||||
|
{
|
||||||
|
/* The audio stream handle */
|
||||||
|
pa_simple *stream;
|
||||||
|
|
||||||
|
/* The parent process id, to detect when application quits */
|
||||||
|
pid_t parent;
|
||||||
|
|
||||||
|
/* Raw mixing buffer */
|
||||||
|
Uint8 *mixbuf;
|
||||||
|
int mixlen;
|
||||||
|
|
||||||
|
/* Support for audio timing using a timer, in addition to select() */
|
||||||
|
float frame_ticks;
|
||||||
|
float next_frame;
|
||||||
|
};
|
||||||
|
#define FUDGE_TICKS 10 /* The scheduler overhead ticks per frame */
|
||||||
|
|
||||||
|
#endif /* _SDL_pulseaudio_h */
|
||||||
|
|
||||||
|
/* vi: set ts=4 sw=4 expandtab: */
|
||||||
Loading…
Add table
Add a link
Reference in a new issue