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Diffstat (limited to '3rdparty/SDL2/src/audio/arts/SDL_artsaudio.c')
-rw-r--r--3rdparty/SDL2/src/audio/arts/SDL_artsaudio.c365
1 files changed, 0 insertions, 365 deletions
diff --git a/3rdparty/SDL2/src/audio/arts/SDL_artsaudio.c b/3rdparty/SDL2/src/audio/arts/SDL_artsaudio.c
deleted file mode 100644
index 6054e36b68f..00000000000
--- a/3rdparty/SDL2/src/audio/arts/SDL_artsaudio.c
+++ /dev/null
@@ -1,365 +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_ARTS
-
-/* Allow access to a raw mixing buffer */
-
-#ifdef HAVE_SIGNAL_H
-#include <signal.h>
-#endif
-#include <unistd.h>
-#include <errno.h>
-
-#include "SDL_timer.h"
-#include "SDL_audio.h"
-#include "../SDL_audio_c.h"
-#include "SDL_artsaudio.h"
-
-#ifdef SDL_AUDIO_DRIVER_ARTS_DYNAMIC
-#include "SDL_name.h"
-#include "SDL_loadso.h"
-#else
-#define SDL_NAME(X) X
-#endif
-
-#ifdef SDL_AUDIO_DRIVER_ARTS_DYNAMIC
-
-static const char *arts_library = SDL_AUDIO_DRIVER_ARTS_DYNAMIC;
-static void *arts_handle = NULL;
-
-/* !!! FIXME: I hate this SDL_NAME clutter...it makes everything so messy! */
-static int (*SDL_NAME(arts_init)) (void);
-static void (*SDL_NAME(arts_free)) (void);
-static arts_stream_t(*SDL_NAME(arts_play_stream)) (int rate, int bits,
- int channels,
- const char *name);
-static int (*SDL_NAME(arts_stream_set)) (arts_stream_t s,
- arts_parameter_t param, int value);
-static int (*SDL_NAME(arts_stream_get)) (arts_stream_t s,
- arts_parameter_t param);
-static int (*SDL_NAME(arts_write)) (arts_stream_t s, const void *buffer,
- int count);
-static void (*SDL_NAME(arts_close_stream)) (arts_stream_t s);
-static int (*SDL_NAME(arts_suspend))(void);
-static int (*SDL_NAME(arts_suspended)) (void);
-static const char *(*SDL_NAME(arts_error_text)) (int errorcode);
-
-#define SDL_ARTS_SYM(x) { #x, (void **) (char *) &SDL_NAME(x) }
-static struct
-{
- const char *name;
- void **func;
-} arts_functions[] = {
-/* *INDENT-OFF* */
- SDL_ARTS_SYM(arts_init),
- SDL_ARTS_SYM(arts_free),
- SDL_ARTS_SYM(arts_play_stream),
- SDL_ARTS_SYM(arts_stream_set),
- SDL_ARTS_SYM(arts_stream_get),
- SDL_ARTS_SYM(arts_write),
- SDL_ARTS_SYM(arts_close_stream),
- SDL_ARTS_SYM(arts_suspend),
- SDL_ARTS_SYM(arts_suspended),
- SDL_ARTS_SYM(arts_error_text),
-/* *INDENT-ON* */
-};
-
-#undef SDL_ARTS_SYM
-
-static void
-UnloadARTSLibrary()
-{
- if (arts_handle != NULL) {
- SDL_UnloadObject(arts_handle);
- arts_handle = NULL;
- }
-}
-
-static int
-LoadARTSLibrary(void)
-{
- int i, retval = -1;
-
- if (arts_handle == NULL) {
- arts_handle = SDL_LoadObject(arts_library);
- if (arts_handle != NULL) {
- retval = 0;
- for (i = 0; i < SDL_arraysize(arts_functions); ++i) {
- *arts_functions[i].func =
- SDL_LoadFunction(arts_handle, arts_functions[i].name);
- if (!*arts_functions[i].func) {
- retval = -1;
- UnloadARTSLibrary();
- break;
- }
- }
- }
- }
-
- return retval;
-}
-
-#else
-
-static void
-UnloadARTSLibrary()
-{
- return;
-}
-
-static int
-LoadARTSLibrary(void)
-{
- return 0;
-}
-
-#endif /* SDL_AUDIO_DRIVER_ARTS_DYNAMIC */
-
-/* This function waits until it is possible to write a full sound buffer */
-static void
-ARTS_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
-ARTS_PlayDevice(_THIS)
-{
- /* Write the audio data */
- int written = SDL_NAME(arts_write) (this->hidden->stream,
- this->hidden->mixbuf,
- this->hidden->mixlen);
-
- /* If timer synchronization is enabled, set the next write frame */
- if (this->hidden->frame_ticks) {
- this->hidden->next_frame += this->hidden->frame_ticks;
- }
-
- /* If we couldn't write, assume fatal error for now */
- if (written < 0) {
- SDL_OpenedAudioDeviceDisconnected(this);
- }
-#ifdef DEBUG_AUDIO
- fprintf(stderr, "Wrote %d bytes of audio data\n", written);
-#endif
-}
-
-static Uint8 *
-ARTS_GetDeviceBuf(_THIS)
-{
- return (this->hidden->mixbuf);
-}
-
-
-static void
-ARTS_CloseDevice(_THIS)
-{
- if (this->hidden->stream) {
- SDL_NAME(arts_close_stream) (this->hidden->stream);
- }
- SDL_NAME(arts_free) ();
- SDL_free(this->hidden->mixbuf);
- SDL_free(this->hidden);
-}
-
-static int
-ARTS_Suspend(void)
-{
- const Uint32 abortms = SDL_GetTicks() + 3000; /* give up after 3 secs */
- while ( (!SDL_NAME(arts_suspended)()) && !SDL_TICKS_PASSED(SDL_GetTicks(), abortms) ) {
- if ( SDL_NAME(arts_suspend)() ) {
- break;
- }
- }
- return SDL_NAME(arts_suspended)();
-}
-
-static int
-ARTS_OpenDevice(_THIS, void *handle, const char *devname, int iscapture)
-{
- int rc = 0;
- int bits = 0, frag_spec = 0;
- SDL_AudioFormat test_format = 0, format = 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);
-
- /* Try for a closest match on audio format */
- for (test_format = SDL_FirstAudioFormat(this->spec.format);
- !format && test_format;) {
-#ifdef DEBUG_AUDIO
- fprintf(stderr, "Trying format 0x%4.4x\n", test_format);
-#endif
- switch (test_format) {
- case AUDIO_U8:
- bits = 8;
- format = 1;
- break;
- case AUDIO_S16LSB:
- bits = 16;
- format = 1;
- break;
- default:
- format = 0;
- break;
- }
- if (!format) {
- test_format = SDL_NextAudioFormat();
- }
- }
- if (format == 0) {
- return SDL_SetError("Couldn't find any hardware audio formats");
- }
- this->spec.format = test_format;
-
- if ((rc = SDL_NAME(arts_init) ()) != 0) {
- return SDL_SetError("Unable to initialize ARTS: %s",
- SDL_NAME(arts_error_text) (rc));
- }
-
- if (!ARTS_Suspend()) {
- return SDL_SetError("ARTS can not open audio device");
- }
-
- this->hidden->stream = SDL_NAME(arts_play_stream) (this->spec.freq,
- bits,
- this->spec.channels,
- "SDL");
-
- /* Play nothing so we have at least one write (server bug workaround). */
- SDL_NAME(arts_write) (this->hidden->stream, "", 0);
-
- /* Calculate the final parameters for this audio specification */
- SDL_CalculateAudioSpec(&this->spec);
-
- /* Determine the power of two of the fragment size */
- for (frag_spec = 0; (0x01 << frag_spec) < this->spec.size; ++frag_spec);
- if ((0x01 << frag_spec) != this->spec.size) {
- return SDL_SetError("Fragment size must be a power of two");
- }
- frag_spec |= 0x00020000; /* two fragments, for low latency */
-
-#ifdef ARTS_P_PACKET_SETTINGS
- SDL_NAME(arts_stream_set) (this->hidden->stream,
- ARTS_P_PACKET_SETTINGS, frag_spec);
-#else
- SDL_NAME(arts_stream_set) (this->hidden->stream, ARTS_P_PACKET_SIZE,
- frag_spec & 0xffff);
- SDL_NAME(arts_stream_set) (this->hidden->stream, ARTS_P_PACKET_COUNT,
- frag_spec >> 16);
-#endif
- this->spec.size = SDL_NAME(arts_stream_get) (this->hidden->stream,
- ARTS_P_PACKET_SIZE);
-
- /* 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
-ARTS_Deinitialize(void)
-{
- UnloadARTSLibrary();
-}
-
-
-static int
-ARTS_Init(SDL_AudioDriverImpl * impl)
-{
- if (LoadARTSLibrary() < 0) {
- return 0;
- } else {
- if (SDL_NAME(arts_init) () != 0) {
- UnloadARTSLibrary();
- SDL_SetError("ARTS: arts_init failed (no audio server?)");
- return 0;
- }
-
- /* Play a stream so aRts doesn't crash */
- if (ARTS_Suspend()) {
- arts_stream_t stream;
- stream = SDL_NAME(arts_play_stream) (44100, 16, 2, "SDL");
- SDL_NAME(arts_write) (stream, "", 0);
- SDL_NAME(arts_close_stream) (stream);
- }
-
- SDL_NAME(arts_free) ();
- }
-
- /* Set the function pointers */
- impl->OpenDevice = ARTS_OpenDevice;
- impl->PlayDevice = ARTS_PlayDevice;
- impl->WaitDevice = ARTS_WaitDevice;
- impl->GetDeviceBuf = ARTS_GetDeviceBuf;
- impl->CloseDevice = ARTS_CloseDevice;
- impl->Deinitialize = ARTS_Deinitialize;
- impl->OnlyHasDefaultOutputDevice = 1;
-
- return 1; /* this audio target is available. */
-}
-
-
-AudioBootStrap ARTS_bootstrap = {
- "arts", "Analog RealTime Synthesizer", ARTS_Init, 0
-};
-
-#endif /* SDL_AUDIO_DRIVER_ARTS */
-
-/* vi: set ts=4 sw=4 expandtab: */