SDL/test/testaudiohotplug.c
Sam Lantinga b8d85c6939 Update for SDL3 coding style (#6717)
I updated .clang-format and ran clang-format 14 over the src and test directories to standardize the code base.

In general I let clang-format have it's way, and added markup to prevent formatting of code that would break or be completely unreadable if formatted.

The script I ran for the src directory is added as build-scripts/clang-format-src.sh

This fixes:
#6592
#6593
#6594

(cherry picked from commit 5750bcb174300011b91d1de20edb288fcca70f8c)
2022-11-30 12:57:41 -08:00

206 lines
5.5 KiB
C

/*
Copyright (C) 1997-2022 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.
*/
/* Program to test hotplugging of audio devices */
#include "SDL_config.h"
#include <stdio.h>
#include <stdlib.h>
#if HAVE_SIGNAL_H
#include <signal.h>
#endif
#ifdef __EMSCRIPTEN__
#include <emscripten/emscripten.h>
#endif
#include "SDL.h"
#include "testutils.h"
static SDL_AudioSpec spec;
static Uint8 *sound = NULL; /* Pointer to wave data */
static Uint32 soundlen = 0; /* Length of wave data */
static int posindex = 0;
static Uint32 positions[64];
/* Call this instead of exit(), so we can clean up SDL: atexit() is evil. */
static void
quit(int rc)
{
SDL_Quit();
exit(rc);
}
void SDLCALL
fillerup(void *_pos, Uint8 *stream, int len)
{
Uint32 pos = *((Uint32 *)_pos);
Uint8 *waveptr;
int waveleft;
/* Set up the pointers */
waveptr = sound + pos;
waveleft = soundlen - pos;
/* Go! */
while (waveleft <= len) {
SDL_memcpy(stream, waveptr, waveleft);
stream += waveleft;
len -= waveleft;
waveptr = sound;
waveleft = soundlen;
pos = 0;
}
SDL_memcpy(stream, waveptr, len);
pos += len;
*((Uint32 *)_pos) = pos;
}
static int done = 0;
void poked(int sig)
{
done = 1;
}
static const char *
devtypestr(int iscapture)
{
return iscapture ? "capture" : "output";
}
static void
iteration()
{
SDL_Event e;
SDL_AudioDeviceID dev;
while (SDL_PollEvent(&e)) {
if (e.type == SDL_QUIT) {
done = 1;
} else if (e.type == SDL_KEYUP) {
if (e.key.keysym.sym == SDLK_ESCAPE) {
done = 1;
}
} else if (e.type == SDL_AUDIODEVICEADDED) {
int index = e.adevice.which;
int iscapture = e.adevice.iscapture;
const char *name = SDL_GetAudioDeviceName(index, iscapture);
if (name != NULL)
SDL_Log("New %s audio device at index %u: %s\n", devtypestr(iscapture), (unsigned int)index, name);
else {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Got new %s device at index %u, but failed to get the name: %s\n",
devtypestr(iscapture), (unsigned int)index, SDL_GetError());
continue;
}
if (!iscapture) {
positions[posindex] = 0;
spec.userdata = &positions[posindex++];
spec.callback = fillerup;
dev = SDL_OpenAudioDevice(name, 0, &spec, NULL, 0);
if (!dev) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't open '%s': %s\n", name, SDL_GetError());
} else {
SDL_Log("Opened '%s' as %u\n", name, (unsigned int)dev);
SDL_PauseAudioDevice(dev, 0);
}
}
} else if (e.type == SDL_AUDIODEVICEREMOVED) {
dev = (SDL_AudioDeviceID)e.adevice.which;
SDL_Log("%s device %u removed.\n", devtypestr(e.adevice.iscapture), (unsigned int)dev);
SDL_CloseAudioDevice(dev);
}
}
}
#ifdef __EMSCRIPTEN__
void loop()
{
if (done)
emscripten_cancel_main_loop();
else
iteration();
}
#endif
int main(int argc, char *argv[])
{
int i;
char *filename = NULL;
/* Enable standard application logging */
SDL_LogSetPriority(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_INFO);
/* Load the SDL library */
if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_AUDIO) < 0) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't initialize SDL: %s\n", SDL_GetError());
return 1;
}
/* Some targets (Mac CoreAudio) need an event queue for audio hotplug, so make and immediately hide a window. */
SDL_MinimizeWindow(SDL_CreateWindow("testaudiohotplug", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, 640, 480, 0));
filename = GetResourceFilename(argc > 1 ? argv[1] : NULL, "sample.wav");
if (filename == NULL) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "%s\n", SDL_GetError());
quit(1);
}
/* Load the wave file into memory */
if (SDL_LoadWAV(filename, &spec, &sound, &soundlen) == NULL) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't load %s: %s\n", filename, SDL_GetError());
quit(1);
}
#if HAVE_SIGNAL_H
/* Set the signals */
#ifdef SIGHUP
signal(SIGHUP, poked);
#endif
signal(SIGINT, poked);
#ifdef SIGQUIT
signal(SIGQUIT, poked);
#endif
signal(SIGTERM, poked);
#endif /* HAVE_SIGNAL_H */
/* Show the list of available drivers */
SDL_Log("Available audio drivers:");
for (i = 0; i < SDL_GetNumAudioDrivers(); ++i) {
SDL_Log("%i: %s", i, SDL_GetAudioDriver(i));
}
SDL_Log("Select a driver with the SDL_AUDIODRIVER environment variable.\n");
SDL_Log("Using audio driver: %s\n", SDL_GetCurrentAudioDriver());
#ifdef __EMSCRIPTEN__
emscripten_set_main_loop(loop, 0, 1);
#else
while (!done) {
SDL_Delay(100);
iteration();
}
#endif
/* Clean up on signal */
/* Quit audio first, then free WAV. This prevents access violations in the audio threads. */
SDL_QuitSubSystem(SDL_INIT_AUDIO);
SDL_FreeWAV(sound);
SDL_free(filename);
SDL_Quit();
return 0;
}
/* vi: set ts=4 sw=4 expandtab: */