🛠️🐜 Antkeeper superbuild with dependencies included
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200 lines
5.4 KiB
200 lines
5.4 KiB
/*
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Copyright (C) 1997-2023 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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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely.
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*/
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#include "SDL.h"
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#include <stdio.h> /* for fflush() and stdout */
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#ifdef __EMSCRIPTEN__
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#include <emscripten/emscripten.h>
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#endif
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#include "testutils.h"
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static SDL_AudioSpec spec;
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static Uint8 *sound = NULL; /* Pointer to wave data */
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static Uint32 soundlen = 0; /* Length of wave data */
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typedef struct
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{
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SDL_AudioDeviceID dev;
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int soundpos;
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SDL_atomic_t done;
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} callback_data;
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callback_data cbd[64];
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void SDLCALL
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play_through_once(void *arg, Uint8 *stream, int len)
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{
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callback_data *cbdata = (callback_data *)arg;
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Uint8 *waveptr = sound + cbdata->soundpos;
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int waveleft = soundlen - cbdata->soundpos;
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int cpy = len;
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if (cpy > waveleft) {
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cpy = waveleft;
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}
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SDL_memcpy(stream, waveptr, cpy);
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len -= cpy;
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cbdata->soundpos += cpy;
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if (len > 0) {
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stream += cpy;
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SDL_memset(stream, spec.silence, len);
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SDL_AtomicSet(&cbdata->done, 1);
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}
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}
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void loop()
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{
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if (SDL_AtomicGet(&cbd[0].done)) {
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#ifdef __EMSCRIPTEN__
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emscripten_cancel_main_loop();
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#endif
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SDL_PauseAudioDevice(cbd[0].dev, 1);
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SDL_CloseAudioDevice(cbd[0].dev);
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SDL_FreeWAV(sound);
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SDL_Quit();
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}
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}
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static void
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test_multi_audio(int devcount)
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{
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int keep_going = 1;
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int i;
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#ifdef __ANDROID__
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SDL_Event event;
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/* Create a Window to get fully initialized event processing for testing pause on Android. */
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SDL_CreateWindow("testmultiaudio", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, 320, 240, 0);
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#endif
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if (devcount > 64) {
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SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Too many devices (%d), clamping to 64...\n",
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devcount);
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devcount = 64;
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}
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spec.callback = play_through_once;
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for (i = 0; i < devcount; i++) {
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const char *devname = SDL_GetAudioDeviceName(i, 0);
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SDL_Log("playing on device #%d: ('%s')...", i, devname);
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SDL_memset(&cbd[0], '\0', sizeof(callback_data));
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spec.userdata = &cbd[0];
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cbd[0].dev = SDL_OpenAudioDevice(devname, 0, &spec, NULL, 0);
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if (cbd[0].dev == 0) {
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SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Open device failed: %s\n", SDL_GetError());
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} else {
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SDL_PauseAudioDevice(cbd[0].dev, 0);
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#ifdef __EMSCRIPTEN__
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emscripten_set_main_loop(loop, 0, 1);
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#else
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while (!SDL_AtomicGet(&cbd[0].done)) {
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#ifdef __ANDROID__
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/* Empty queue, some application events would prevent pause. */
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while (SDL_PollEvent(&event)) {
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}
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#endif
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SDL_Delay(100);
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}
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SDL_PauseAudioDevice(cbd[0].dev, 1);
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#endif
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SDL_Log("done.\n");
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SDL_CloseAudioDevice(cbd[0].dev);
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}
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}
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SDL_memset(cbd, '\0', sizeof(cbd));
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SDL_Log("playing on all devices...\n");
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for (i = 0; i < devcount; i++) {
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const char *devname = SDL_GetAudioDeviceName(i, 0);
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spec.userdata = &cbd[i];
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cbd[i].dev = SDL_OpenAudioDevice(devname, 0, &spec, NULL, 0);
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if (cbd[i].dev == 0) {
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SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Open device %d failed: %s\n", i, SDL_GetError());
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}
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}
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for (i = 0; i < devcount; i++) {
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if (cbd[i].dev) {
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SDL_PauseAudioDevice(cbd[i].dev, 0);
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}
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}
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while (keep_going) {
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keep_going = 0;
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for (i = 0; i < devcount; i++) {
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if ((cbd[i].dev) && (!SDL_AtomicGet(&cbd[i].done))) {
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keep_going = 1;
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}
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}
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#ifdef __ANDROID__
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/* Empty queue, some application events would prevent pause. */
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while (SDL_PollEvent(&event)) {
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}
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#endif
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SDL_Delay(100);
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}
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#ifndef __EMSCRIPTEN__
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for (i = 0; i < devcount; i++) {
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if (cbd[i].dev) {
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SDL_PauseAudioDevice(cbd[i].dev, 1);
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SDL_CloseAudioDevice(cbd[i].dev);
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}
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}
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SDL_Log("All done!\n");
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#endif
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}
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int main(int argc, char **argv)
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{
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int devcount = 0;
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/* Enable standard application logging */
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SDL_LogSetPriority(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_INFO);
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/* Load the SDL library */
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if (SDL_Init(SDL_INIT_AUDIO) < 0) {
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SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't initialize SDL: %s\n", SDL_GetError());
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return 1;
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}
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SDL_Log("Using audio driver: %s\n", SDL_GetCurrentAudioDriver());
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devcount = SDL_GetNumAudioDevices(0);
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if (devcount < 1) {
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SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Don't see any specific audio devices!\n");
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} else {
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char *file = GetResourceFilename(argc > 1 ? argv[1] : NULL, "sample.wav");
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/* Load the wave file into memory */
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if (SDL_LoadWAV(file, &spec, &sound, &soundlen) == NULL) {
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SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't load %s: %s\n", file,
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SDL_GetError());
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} else {
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test_multi_audio(devcount);
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SDL_FreeWAV(sound);
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}
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SDL_free(file);
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}
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SDL_Quit();
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return 0;
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}
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