mirror of
https://github.com/love2d/megasource.git
synced 2026-08-19 20:20:11 +02:00
Update SDL to 2.0.7
This commit is contained in:
@@ -1,6 +1,6 @@
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/*
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Simple DirectMedia Layer
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Copyright (C) 1997-2016 Sam Lantinga <slouken@libsdl.org>
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Copyright (C) 1997-2017 Sam Lantinga <slouken@libsdl.org>
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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@@ -45,6 +45,7 @@
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#include "SDL_timer.h"
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#include "SDL_audio.h"
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#include "../../core/unix/SDL_poll.h"
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#include "../SDL_audio_c.h"
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#include "SDL_qsa_audio.h"
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@@ -56,24 +57,6 @@
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#define DEFAULT_CPARAMS_FRAGS_MIN 1
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#define DEFAULT_CPARAMS_FRAGS_MAX 1
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#define QSA_NO_WORKAROUNDS 0x00000000
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#define QSA_MMAP_WORKAROUND 0x00000001
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struct BuggyCards
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{
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char *cardname;
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unsigned long bugtype;
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};
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#define QSA_WA_CARDS 3
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#define QSA_MAX_CARD_NAME_LENGTH 33
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struct BuggyCards buggycards[QSA_WA_CARDS] = {
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{"Sound Blaster Live!", QSA_MMAP_WORKAROUND},
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{"Vortex 8820", QSA_MMAP_WORKAROUND},
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{"Vortex 8830", QSA_MMAP_WORKAROUND},
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};
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/* List of found devices */
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#define QSA_MAX_DEVICES 32
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#define QSA_MAX_NAME_LENGTH 81+16 /* Hardcoded in QSA, can't be changed */
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@@ -97,40 +80,16 @@ QSA_SetError(const char *fn, int status)
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return SDL_SetError("QSA: %s() failed: %s", fn, snd_strerror(status));
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}
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/* card names check to apply the workarounds */
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static int
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QSA_CheckBuggyCards(_THIS, unsigned long checkfor)
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{
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char scardname[QSA_MAX_CARD_NAME_LENGTH];
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int it;
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if (snd_card_get_name
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(this->hidden->cardno, scardname, QSA_MAX_CARD_NAME_LENGTH - 1) < 0) {
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return 0;
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}
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for (it = 0; it < QSA_WA_CARDS; it++) {
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if (SDL_strcmp(buggycards[it].cardname, scardname) == 0) {
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if (buggycards[it].bugtype == checkfor) {
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return 1;
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}
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}
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}
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return 0;
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}
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/* !!! FIXME: does this need to be here? Does the SDL version not work? */
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static void
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QSA_ThreadInit(_THIS)
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{
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struct sched_param param;
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int status;
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/* Increase default 10 priority to 25 to avoid jerky sound */
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status = SchedGet(0, 0, ¶m);
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param.sched_priority = param.sched_curpriority + 15;
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status = SchedSet(0, 0, SCHED_NOCHANGE, ¶m);
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struct sched_param param;
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if (SchedGet(0, 0, ¶m) != -1) {
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param.sched_priority = param.sched_curpriority + 15;
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SchedSet(0, 0, SCHED_NOCHANGE, ¶m);
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}
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}
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/* PCM channel parameters initialize function */
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@@ -155,67 +114,25 @@ QSA_InitAudioParams(snd_pcm_channel_params_t * cpars)
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static void
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QSA_WaitDevice(_THIS)
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{
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fd_set wfds;
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fd_set rfds;
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int selectret;
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struct timeval timeout;
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int result;
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if (!this->hidden->iscapture) {
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FD_ZERO(&wfds);
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FD_SET(this->hidden->audio_fd, &wfds);
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} else {
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FD_ZERO(&rfds);
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FD_SET(this->hidden->audio_fd, &rfds);
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}
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do {
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/* Setup timeout for playing one fragment equal to 2 seconds */
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/* If timeout occured than something wrong with hardware or driver */
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/* For example, Vortex 8820 audio driver stucks on second DAC because */
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/* it doesn't exist ! */
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timeout.tv_sec = 2;
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timeout.tv_usec = 0;
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/* Setup timeout for playing one fragment equal to 2 seconds */
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/* If timeout occured than something wrong with hardware or driver */
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/* For example, Vortex 8820 audio driver stucks on second DAC because */
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/* it doesn't exist ! */
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result = SDL_IOReady(this->hidden->audio_fd, !this->hidden->iscapture, 2 * 1000);
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switch (result) {
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case -1:
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SDL_SetError("QSA: SDL_IOReady() failed: %s", strerror(errno));
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break;
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case 0:
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SDL_SetError("QSA: timeout on buffer waiting occured");
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this->hidden->timeout_on_wait = 1;
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break;
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default:
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this->hidden->timeout_on_wait = 0;
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if (!this->hidden->iscapture) {
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selectret =
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select(this->hidden->audio_fd + 1, NULL, &wfds, NULL,
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&timeout);
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} else {
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selectret =
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select(this->hidden->audio_fd + 1, &rfds, NULL, NULL,
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&timeout);
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}
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switch (selectret) {
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case -1:
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{
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SDL_SetError("QSA: select() failed: %s", strerror(errno));
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return;
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}
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break;
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case 0:
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{
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SDL_SetError("QSA: timeout on buffer waiting occured");
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this->hidden->timeout_on_wait = 1;
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return;
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}
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break;
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default:
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{
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if (!this->hidden->iscapture) {
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if (FD_ISSET(this->hidden->audio_fd, &wfds)) {
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return;
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}
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} else {
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if (FD_ISSET(this->hidden->audio_fd, &rfds)) {
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return;
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}
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}
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}
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break;
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}
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} while (1);
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break;
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}
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}
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static void
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@@ -357,7 +274,6 @@ QSA_OpenDevice(_THIS, void *handle, const char *devname, int iscapture)
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if (this->hidden == NULL) {
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return SDL_OutOfMemory();
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}
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SDL_zerop(this->hidden);
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/* Initialize channel transfer parameters to default */
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QSA_InitAudioParams(&cparams);
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@@ -371,13 +287,13 @@ QSA_OpenDevice(_THIS, void *handle, const char *devname, int iscapture)
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this->hidden->cardno = device->cardno;
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status = snd_pcm_open(&this->hidden->audio_handle,
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device->cardno, device->deviceno,
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iscapture ? SND_PCM_OPEN_PLAYBACK : SND_PCM_OPEN_CAPTURE);
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iscapture ? SND_PCM_OPEN_CAPTURE : SND_PCM_OPEN_PLAYBACK);
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} else {
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/* Open system default audio device */
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status = snd_pcm_open_preferred(&this->hidden->audio_handle,
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&this->hidden->cardno,
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&this->hidden->deviceno,
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iscapture ? SND_PCM_OPEN_PLAYBACK : SND_PCM_OPEN_CAPTURE);
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iscapture ? SND_PCM_OPEN_CAPTURE : SND_PCM_OPEN_PLAYBACK);
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}
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/* Check if requested device is opened */
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@@ -386,16 +302,6 @@ QSA_OpenDevice(_THIS, void *handle, const char *devname, int iscapture)
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return QSA_SetError("snd_pcm_open", status);
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}
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if (!QSA_CheckBuggyCards(this, QSA_MMAP_WORKAROUND)) {
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/* Disable QSA MMAP plugin for buggy audio drivers */
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status =
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snd_pcm_plugin_set_disable(this->hidden->audio_handle,
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PLUGIN_DISABLE_MMAP);
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if (status < 0) {
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return QSA_SetError("snd_pcm_plugin_set_disable", status);
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}
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}
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/* Try for a closest match on audio format */
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format = 0;
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/* can't use format as SND_PCM_SFMT_U8 = 0 in qsa */
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@@ -494,7 +400,7 @@ QSA_OpenDevice(_THIS, void *handle, const char *devname, int iscapture)
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/* Setup the transfer parameters according to cparams */
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status = snd_pcm_plugin_params(this->hidden->audio_handle, &cparams);
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if (status < 0) {
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return QSA_SetError("snd_pcm_channel_params", status);
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return QSA_SetError("snd_pcm_plugin_params", status);
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}
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/* Make sure channel is setup right one last time */
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@@ -722,9 +628,6 @@ QSA_Deinitialize(void)
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static int
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QSA_Init(SDL_AudioDriverImpl * impl)
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{
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snd_pcm_t *handle = NULL;
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int32_t status = 0;
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/* Clear devices array */
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SDL_zero(qsa_playback_device);
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SDL_zero(qsa_capture_device);
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@@ -745,20 +648,12 @@ QSA_Init(SDL_AudioDriverImpl * impl)
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impl->LockDevice = NULL;
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impl->UnlockDevice = NULL;
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impl->OnlyHasDefaultOutputDevice = 0;
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impl->ProvidesOwnCallbackThread = 0;
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impl->SkipMixerLock = 0;
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impl->HasCaptureSupport = 1;
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impl->OnlyHasDefaultOutputDevice = 0;
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impl->OnlyHasDefaultCaptureDevice = 0;
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/* Check if io-audio manager is running or not */
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status = snd_cards();
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if (status == 0) {
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/* if no, return immediately */
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return 1;
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}
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return 1; /* this audio target is available. */
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}
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