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Diffstat (limited to '3rdparty/SDL2/src/audio/esd/SDL_esdaudio.c')
-rw-r--r--3rdparty/SDL2/src/audio/esd/SDL_esdaudio.c335
1 files changed, 0 insertions, 335 deletions
diff --git a/3rdparty/SDL2/src/audio/esd/SDL_esdaudio.c b/3rdparty/SDL2/src/audio/esd/SDL_esdaudio.c
deleted file mode 100644
index 3eb71979106..00000000000
--- a/3rdparty/SDL2/src/audio/esd/SDL_esdaudio.c
+++ /dev/null
@@ -1,335 +0,0 @@
-/*
- Simple DirectMedia Layer
- Copyright (C) 1997-2016 Sam Lantinga <slouken@libsdl.org>
-
- This software is provided 'as-is', without any express or implied
- warranty. In no event will the authors be held liable for any damages
- arising from the use of this software.
-
- Permission is granted to anyone to use this software for any purpose,
- including commercial applications, and to alter it and redistribute it
- freely, subject to the following restrictions:
-
- 1. The origin of this software must not be misrepresented; you must not
- claim that you wrote the original software. If you use this software
- in a product, an acknowledgment in the product documentation would be
- appreciated but is not required.
- 2. Altered source versions must be plainly marked as such, and must not be
- misrepresented as being the original software.
- 3. This notice may not be removed or altered from any source distribution.
-*/
-#include "../../SDL_internal.h"
-
-#if SDL_AUDIO_DRIVER_ESD
-
-/* Allow access to an ESD network stream mixing buffer */
-
-#include <sys/types.h>
-#include <unistd.h>
-#include <signal.h>
-#include <errno.h>
-#include <esd.h>
-
-#include "SDL_timer.h"
-#include "SDL_audio.h"
-#include "../SDL_audio_c.h"
-#include "SDL_esdaudio.h"
-
-#ifdef SDL_AUDIO_DRIVER_ESD_DYNAMIC
-#include "SDL_name.h"
-#include "SDL_loadso.h"
-#else
-#define SDL_NAME(X) X
-#endif
-
-#ifdef SDL_AUDIO_DRIVER_ESD_DYNAMIC
-
-static const char *esd_library = SDL_AUDIO_DRIVER_ESD_DYNAMIC;
-static void *esd_handle = NULL;
-
-static int (*SDL_NAME(esd_open_sound)) (const char *host);
-static int (*SDL_NAME(esd_close)) (int esd);
-static int (*SDL_NAME(esd_play_stream)) (esd_format_t format, int rate,
- const char *host, const char *name);
-
-#define SDL_ESD_SYM(x) { #x, (void **) (char *) &SDL_NAME(x) }
-static struct
-{
- const char *name;
- void **func;
-} const esd_functions[] = {
- SDL_ESD_SYM(esd_open_sound),
- SDL_ESD_SYM(esd_close), SDL_ESD_SYM(esd_play_stream),
-};
-
-#undef SDL_ESD_SYM
-
-static void
-UnloadESDLibrary()
-{
- if (esd_handle != NULL) {
- SDL_UnloadObject(esd_handle);
- esd_handle = NULL;
- }
-}
-
-static int
-LoadESDLibrary(void)
-{
- int i, retval = -1;
-
- if (esd_handle == NULL) {
- esd_handle = SDL_LoadObject(esd_library);
- if (esd_handle) {
- retval = 0;
- for (i = 0; i < SDL_arraysize(esd_functions); ++i) {
- *esd_functions[i].func =
- SDL_LoadFunction(esd_handle, esd_functions[i].name);
- if (!*esd_functions[i].func) {
- retval = -1;
- UnloadESDLibrary();
- break;
- }
- }
- }
- }
- return retval;
-}
-
-#else
-
-static void
-UnloadESDLibrary()
-{
- return;
-}
-
-static int
-LoadESDLibrary(void)
-{
- return 0;
-}
-
-#endif /* SDL_AUDIO_DRIVER_ESD_DYNAMIC */
-
-
-/* This function waits until it is possible to write a full sound buffer */
-static void
-ESD_WaitDevice(_THIS)
-{
- Sint32 ticks;
-
- /* Check to see if the thread-parent process is still alive */
- {
- static int cnt = 0;
- /* Note that this only works with thread implementations
- that use a different process id for each thread.
- */
- /* Check every 10 loops */
- if (this->hidden->parent && (((++cnt) % 10) == 0)) {
- if (kill(this->hidden->parent, 0) < 0 && errno == ESRCH) {
- SDL_OpenedAudioDeviceDisconnected(this);
- }
- }
- }
-
- /* Use timer for general audio synchronization */
- ticks = ((Sint32) (this->hidden->next_frame - SDL_GetTicks())) - FUDGE_TICKS;
- if (ticks > 0) {
- SDL_Delay(ticks);
- }
-}
-
-static void
-ESD_PlayDevice(_THIS)
-{
- int written = 0;
-
- /* Write the audio data, checking for EAGAIN on broken audio drivers */
- do {
- written = write(this->hidden->audio_fd,
- this->hidden->mixbuf, this->hidden->mixlen);
- if ((written < 0) && ((errno == 0) || (errno == EAGAIN))) {
- SDL_Delay(1); /* Let a little CPU time go by */
- }
- } while ((written < 0) &&
- ((errno == 0) || (errno == EAGAIN) || (errno == EINTR)));
-
- /* Set the next write frame */
- this->hidden->next_frame += this->hidden->frame_ticks;
-
- /* If we couldn't write, assume fatal error for now */
- if (written < 0) {
- SDL_OpenedAudioDeviceDisconnected(this);
- }
-}
-
-static Uint8 *
-ESD_GetDeviceBuf(_THIS)
-{
- return (this->hidden->mixbuf);
-}
-
-static void
-ESD_CloseDevice(_THIS)
-{
- if (this->hidden->audio_fd >= 0) {
- SDL_NAME(esd_close) (this->hidden->audio_fd);
- }
- SDL_free(this->hidden->mixbuf);
- SDL_free(this->hidden);
-}
-
-/* Try to get the name of the program */
-static char *
-get_progname(void)
-{
- char *progname = NULL;
-#ifdef __LINUX__
- FILE *fp;
- static char temp[BUFSIZ];
-
- SDL_snprintf(temp, SDL_arraysize(temp), "/proc/%d/cmdline", getpid());
- fp = fopen(temp, "r");
- if (fp != NULL) {
- if (fgets(temp, sizeof(temp) - 1, fp)) {
- progname = SDL_strrchr(temp, '/');
- if (progname == NULL) {
- progname = temp;
- } else {
- progname = progname + 1;
- }
- }
- fclose(fp);
- }
-#endif
- return (progname);
-}
-
-
-static int
-ESD_OpenDevice(_THIS, void *handle, const char *devname, int iscapture)
-{
- esd_format_t format = (ESD_STREAM | ESD_PLAY);
- SDL_AudioFormat test_format = 0;
- int found = 0;
-
- /* Initialize all variables that we clean on shutdown */
- this->hidden = (struct SDL_PrivateAudioData *)
- SDL_malloc((sizeof *this->hidden));
- if (this->hidden == NULL) {
- return SDL_OutOfMemory();
- }
- SDL_zerop(this->hidden);
- this->hidden->audio_fd = -1;
-
- /* Convert audio spec to the ESD audio format */
- /* Try for a closest match on audio format */
- for (test_format = SDL_FirstAudioFormat(this->spec.format);
- !found && test_format; test_format = SDL_NextAudioFormat()) {
-#ifdef DEBUG_AUDIO
- fprintf(stderr, "Trying format 0x%4.4x\n", test_format);
-#endif
- found = 1;
- switch (test_format) {
- case AUDIO_U8:
- format |= ESD_BITS8;
- break;
- case AUDIO_S16SYS:
- format |= ESD_BITS16;
- break;
- default:
- found = 0;
- break;
- }
- }
-
- if (!found) {
- return SDL_SetError("Couldn't find any hardware audio formats");
- }
-
- if (this->spec.channels == 1) {
- format |= ESD_MONO;
- } else {
- format |= ESD_STEREO;
- }
-#if 0
- this->spec.samples = ESD_BUF_SIZE; /* Darn, no way to change this yet */
-#endif
-
- /* Open a connection to the ESD audio server */
- this->hidden->audio_fd =
- SDL_NAME(esd_play_stream) (format, this->spec.freq, NULL,
- get_progname());
-
- if (this->hidden->audio_fd < 0) {
- return SDL_SetError("Couldn't open ESD connection");
- }
-
- /* Calculate the final parameters for this audio specification */
- SDL_CalculateAudioSpec(&this->spec);
- this->hidden->frame_ticks =
- (float) (this->spec.samples * 1000) / this->spec.freq;
- this->hidden->next_frame = SDL_GetTicks() + this->hidden->frame_ticks;
-
- /* Allocate mixing buffer */
- this->hidden->mixlen = this->spec.size;
- this->hidden->mixbuf = (Uint8 *) SDL_malloc(this->hidden->mixlen);
- if (this->hidden->mixbuf == NULL) {
- return SDL_OutOfMemory();
- }
- SDL_memset(this->hidden->mixbuf, this->spec.silence, this->spec.size);
-
- /* 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 0;
-}
-
-static void
-ESD_Deinitialize(void)
-{
- UnloadESDLibrary();
-}
-
-static int
-ESD_Init(SDL_AudioDriverImpl * impl)
-{
- if (LoadESDLibrary() < 0) {
- return 0;
- } else {
- int connection = 0;
-
- /* Don't start ESD if it's not running */
- SDL_setenv("ESD_NO_SPAWN", "1", 0);
-
- connection = SDL_NAME(esd_open_sound) (NULL);
- if (connection < 0) {
- UnloadESDLibrary();
- SDL_SetError("ESD: esd_open_sound failed (no audio server?)");
- return 0;
- }
- SDL_NAME(esd_close) (connection);
- }
-
- /* Set the function pointers */
- impl->OpenDevice = ESD_OpenDevice;
- impl->PlayDevice = ESD_PlayDevice;
- impl->WaitDevice = ESD_WaitDevice;
- impl->GetDeviceBuf = ESD_GetDeviceBuf;
- impl->CloseDevice = ESD_CloseDevice;
- impl->Deinitialize = ESD_Deinitialize;
- impl->OnlyHasDefaultOutputDevice = 1;
-
- return 1; /* this audio target is available. */
-}
-
-
-AudioBootStrap ESD_bootstrap = {
- "esd", "Enlightened Sound Daemon", ESD_Init, 0
-};
-
-#endif /* SDL_AUDIO_DRIVER_ESD */
-
-/* vi: set ts=4 sw=4 expandtab: */