From e205b25d65ccb380fa158711e24d55b6de5d9bc1 Mon Sep 17 00:00:00 2001
From: Pierre Ossman <ossman@cendio.se>
Date: Thu, 16 Feb 2006 19:19:58 +0000
Subject: Reorganised the source tree. We now have src/ with a couple of
 subdirs:

 * daemon/ - Contains the files specific to the polypaudio daemon.
 * modules/ - All loadable modules.
 * polyp/ - Files that are part of the public, application interface or
   are only used in libpolyp.
 * polypcore/ - All other shared files.
 * tests/ - Test programs.
 * utils/ - Utility programs.


git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@487 fefdeb5f-60dc-0310-8127-8f9354f1896f
---
 src/polypcore/play-memchunk.c | 118 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 118 insertions(+)
 create mode 100644 src/polypcore/play-memchunk.c

(limited to 'src/polypcore/play-memchunk.c')

diff --git a/src/polypcore/play-memchunk.c b/src/polypcore/play-memchunk.c
new file mode 100644
index 00000000..e24d4427
--- /dev/null
+++ b/src/polypcore/play-memchunk.c
@@ -0,0 +1,118 @@
+/* $Id$ */
+
+/***
+  This file is part of polypaudio.
+ 
+  polypaudio 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 of the License,
+  or (at your option) any later version.
+ 
+  polypaudio 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
+  General Public License for more details.
+ 
+  You should have received a copy of the GNU Lesser General Public License
+  along with polypaudio; if not, write to the Free Software
+  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+  USA.
+***/
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <stdlib.h>
+#include <assert.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "play-memchunk.h"
+#include "sink-input.h"
+#include "xmalloc.h"
+#include "gccmacro.h"
+
+static void sink_input_kill(pa_sink_input *i) {
+    pa_memchunk *c;
+    assert(i && i->userdata);
+    c = i->userdata;
+
+    pa_sink_input_disconnect(i);
+    pa_sink_input_unref(i);
+
+    pa_memblock_unref(c->memblock);
+    pa_xfree(c);
+}
+
+static int sink_input_peek(pa_sink_input *i, pa_memchunk *chunk) {
+    pa_memchunk *c;
+    assert(i && chunk && i->userdata);
+    c = i->userdata;
+
+    if (c->length <= 0)
+        return -1;
+    
+    assert(c->memblock && c->memblock->length);
+    *chunk = *c;
+    pa_memblock_ref(c->memblock);
+
+    return 0;
+}
+
+static void si_kill(PA_GCC_UNUSED pa_mainloop_api *m, void *i) {
+    sink_input_kill(i);
+}
+
+static void sink_input_drop(pa_sink_input *i, const pa_memchunk*chunk, size_t length) {
+    pa_memchunk *c;
+    assert(i && length && i->userdata);
+    c = i->userdata;
+
+    assert(!memcmp(chunk, c, sizeof(chunk)));
+    assert(length <= c->length);
+
+    c->length -= length;
+    c->index += length;
+
+    if (c->length <= 0)
+        pa_mainloop_api_once(i->sink->core->mainloop, si_kill, i);
+}
+
+int pa_play_memchunk(
+    pa_sink *sink,
+    const char *name,
+    const pa_sample_spec *ss,
+    const pa_channel_map *map,
+    const pa_memchunk *chunk,
+    pa_cvolume *cvolume) {
+    
+    pa_sink_input *si;
+    pa_memchunk *nchunk;
+
+    assert(sink);
+    assert(ss);
+    assert(chunk);
+
+    if (cvolume && pa_cvolume_is_muted(cvolume))
+        return 0;
+
+    if (!(si = pa_sink_input_new(sink, name, __FILE__, ss, map, 0, PA_RESAMPLER_INVALID)))
+        return -1;
+
+    if (cvolume)
+        si->volume = *cvolume;
+    
+    si->peek = sink_input_peek;
+    si->drop = sink_input_drop;
+    si->kill = sink_input_kill;
+    
+    si->userdata = nchunk = pa_xnew(pa_memchunk, 1);
+    *nchunk = *chunk;
+    
+    pa_memblock_ref(chunk->memblock);
+
+    pa_sink_notify(sink);
+    
+    return 0;
+}
-- 
cgit