aboutsummaryrefslogtreecommitdiffstats
path: root/Alc/null.c
diff options
context:
space:
mode:
authorChris Robinson <[email protected]>2011-08-20 00:41:47 -0700
committerChris Robinson <[email protected]>2011-08-20 00:41:47 -0700
commit9989f33fc24042578bf4bf2c50a06a6366d07c1d (patch)
treecdf87e14c0333069c3ba791109c753c3ebf9784e /Alc/null.c
parentba4456d24aa013118e70fa1158def7ad18e8d66e (diff)
Move backend sources to a separate sub-directory
Diffstat (limited to 'Alc/null.c')
-rw-r--r--Alc/null.c164
1 files changed, 0 insertions, 164 deletions
diff --git a/Alc/null.c b/Alc/null.c
deleted file mode 100644
index dd1ac216..00000000
--- a/Alc/null.c
+++ /dev/null
@@ -1,164 +0,0 @@
-/**
- * OpenAL cross platform audio library
- * Copyright (C) 2010 by Chris Robinson
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 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
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- * Or go to http://www.gnu.org/copyleft/lgpl.html
- */
-
-#include "config.h"
-
-#include <stdlib.h>
-#include "alMain.h"
-#include "AL/al.h"
-#include "AL/alc.h"
-
-
-typedef struct {
- volatile int killNow;
- ALvoid *thread;
-} null_data;
-
-
-static const ALCchar nullDevice[] = "No Output";
-
-static ALuint NullProc(ALvoid *ptr)
-{
- ALCdevice *Device = (ALCdevice*)ptr;
- null_data *data = (null_data*)Device->ExtraData;
- ALuint now, start;
- ALuint64 avail, done;
- const ALuint restTime = (ALuint64)Device->UpdateSize * 1000 /
- Device->Frequency / 2;
-
- done = 0;
- start = timeGetTime();
- while(!data->killNow && Device->Connected)
- {
- now = timeGetTime();
-
- avail = (ALuint64)(now-start) * Device->Frequency / 1000;
- if(avail < done)
- {
- /* Timer wrapped. Add the remainder of the cycle to the available
- * count and reset the number of samples done */
- avail += (ALuint64)0xFFFFFFFFu*Device->Frequency/1000 - done;
- done = 0;
- }
- if(avail-done < Device->UpdateSize)
- {
- Sleep(restTime);
- continue;
- }
-
- while(avail-done >= Device->UpdateSize)
- {
- aluMixData(Device, NULL, Device->UpdateSize);
- done += Device->UpdateSize;
- }
- }
-
- return 0;
-}
-
-static ALCboolean null_open_playback(ALCdevice *device, const ALCchar *deviceName)
-{
- null_data *data;
-
- if(!deviceName)
- deviceName = nullDevice;
- else if(strcmp(deviceName, nullDevice) != 0)
- return ALC_FALSE;
-
- data = (null_data*)calloc(1, sizeof(*data));
-
- device->szDeviceName = strdup(deviceName);
- device->ExtraData = data;
- return ALC_TRUE;
-}
-
-static void null_close_playback(ALCdevice *device)
-{
- null_data *data = (null_data*)device->ExtraData;
-
- free(data);
- device->ExtraData = NULL;
-}
-
-static ALCboolean null_reset_playback(ALCdevice *device)
-{
- null_data *data = (null_data*)device->ExtraData;
-
- SetDefaultWFXChannelOrder(device);
-
- data->thread = StartThread(NullProc, device);
- if(data->thread == NULL)
- return ALC_FALSE;
-
- return ALC_TRUE;
-}
-
-static void null_stop_playback(ALCdevice *device)
-{
- null_data *data = (null_data*)device->ExtraData;
-
- if(!data->thread)
- return;
-
- data->killNow = 1;
- StopThread(data->thread);
- data->thread = NULL;
-
- data->killNow = 0;
-}
-
-
-static const BackendFuncs null_funcs = {
- null_open_playback,
- null_close_playback,
- null_reset_playback,
- null_stop_playback,
- NULL,
- NULL,
- NULL,
- NULL,
- NULL,
- NULL
-};
-
-ALCboolean alc_null_init(BackendFuncs *func_list)
-{
- *func_list = null_funcs;
- return ALC_TRUE;
-}
-
-void alc_null_deinit(void)
-{
-}
-
-void alc_null_probe(enum DevProbe type)
-{
- switch(type)
- {
- case DEVICE_PROBE:
- AppendDeviceList(nullDevice);
- break;
- case ALL_DEVICE_PROBE:
- AppendAllDeviceList(nullDevice);
- break;
- case CAPTURE_DEVICE_PROBE:
- break;
- }
-}