1 files changed, 201 insertions, 0 deletions

diff --git a/contrib/SDL-3.2.8/test/testmultiaudio.c b/contrib/SDL-3.2.8/test/testmultiaudio.c
new file mode 100644
index 0000000..7e1b8dc
--- /dev/null
+++ b/contrib/SDL-3.2.8/test/testmultiaudio.c
@@ -0,0 +1,201 @@
+/*
+  Copyright (C) 1997-2025 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.
+*/
+#include <SDL3/SDL.h>
+#include <SDL3/SDL_main.h>
+#include <SDL3/SDL_test.h>
+
+#include "testutils.h"
+
+#ifdef SDL_PLATFORM_EMSCRIPTEN
+#include <emscripten/emscripten.h>
+#endif
+
+#include <stdio.h> /* for fflush() and stdout */
+
+static SDL_AudioSpec spec;
+static Uint8 *sound = NULL; /* Pointer to wave data */
+static Uint32 soundlen = 0; /* Length of wave data */
+
+/* these have to be in globals so the Emscripten port can see them in the mainloop.  :/  */
+static SDL_AudioStream *stream = NULL;
+
+
+#ifdef SDL_PLATFORM_EMSCRIPTEN
+static void loop(void)
+{
+    if (SDL_GetAudioStreamAvailable(stream) == 0) {
+        SDL_Log("done.");
+        SDL_DestroyAudioStream(stream);
+        SDL_free(sound);
+        SDL_Quit();
+        emscripten_cancel_main_loop();
+    }
+}
+#endif
+
+static void
+test_multi_audio(const SDL_AudioDeviceID *devices, int devcount)
+{
+    int keep_going = 1;
+    SDL_AudioStream **streams = NULL;
+    int i;
+
+#ifdef SDL_PLATFORM_ANDROID  /* !!! FIXME: maybe always create a window, in the SDLTest layer, so these #ifdefs don't have to be here? */
+    SDL_Event event;
+
+    /* Create a Window to get fully initialized event processing for testing pause on Android. */
+    SDL_CreateWindow("testmultiaudio", 320, 240, 0);
+#endif
+
+    for (i = 0; i < devcount; i++) {
+        const char *devname = SDL_GetAudioDeviceName(devices[i]);
+
+        SDL_Log("Playing on device #%d of %d: id=%u, name='%s'...", i, devcount, (unsigned int) devices[i], devname);
+
+        if ((stream = SDL_OpenAudioDeviceStream(devices[i], &spec, NULL, NULL)) == NULL) {
+            SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Audio stream creation failed: %s", SDL_GetError());
+        } else {
+            SDL_ResumeAudioStreamDevice(stream);
+            SDL_PutAudioStreamData(stream, sound, soundlen);
+            SDL_FlushAudioStream(stream);
+#ifdef SDL_PLATFORM_EMSCRIPTEN
+            emscripten_set_main_loop(loop, 0, 1);
+#else
+            while (SDL_GetAudioStreamAvailable(stream) > 0) {
+#ifdef SDL_PLATFORM_ANDROID
+                /* Empty queue, some application events would prevent pause. */
+                while (SDL_PollEvent(&event)) {
+                }
+#endif
+                SDL_Delay(100);
+            }
+#endif
+            SDL_Log("done.");
+            SDL_DestroyAudioStream(stream);
+        }
+        stream = NULL;
+    }
+
+    /* note that Emscripten currently doesn't run this part (but maybe only has a single audio device anyhow?) */
+    SDL_Log("Playing on all devices...");
+    streams = (SDL_AudioStream **) SDL_calloc(devcount, sizeof (SDL_AudioStream *));
+    if (!streams) {
+        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Out of memory!");
+    } else {
+        for (i = 0; i < devcount; i++) {
+            streams[i] = SDL_OpenAudioDeviceStream(devices[i], &spec, NULL, NULL);
+            if (streams[i] == NULL) {
+                SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Audio stream creation failed for device %d of %d: %s", i, devcount, SDL_GetError());
+            } else {
+                SDL_PutAudioStreamData(streams[i], sound, soundlen);
+                SDL_FlushAudioStream(streams[i]);
+            }
+        }
+
+        /* try to start all the devices about the same time. SDL does not guarantee sync across physical devices. */
+        for (i = 0; i < devcount; i++) {
+            if (streams[i]) {
+                SDL_ResumeAudioStreamDevice(streams[i]);
+            }
+        }
+
+        while (keep_going) {
+            keep_going = 0;
+            for (i = 0; i < devcount; i++) {
+                if (streams[i] && (SDL_GetAudioStreamAvailable(streams[i]) > 0)) {
+                    keep_going = 1;
+                }
+            }
+#ifdef SDL_PLATFORM_ANDROID
+            /* Empty queue, some application events would prevent pause. */
+            while (SDL_PollEvent(&event)) {}
+#endif
+
+            SDL_Delay(100);
+        }
+
+        for (i = 0; i < devcount; i++) {
+            SDL_DestroyAudioStream(streams[i]);
+        }
+
+        SDL_free(streams);
+    }
+
+    SDL_Log("All done!");
+}
+
+int main(int argc, char **argv)
+{
+    SDL_AudioDeviceID *devices;
+    int devcount = 0;
+    int i;
+    char *filename = NULL;
+    SDLTest_CommonState *state;
+
+    /* Initialize test framework */
+    state = SDLTest_CommonCreateState(argv, SDL_INIT_AUDIO);
+    if (!state) {
+        return 1;
+    }
+
+    /* Parse commandline */
+    for (i = 1; i < argc;) {
+        int consumed;
+
+        consumed = SDLTest_CommonArg(state, i);
+        if (!consumed) {
+            if (!filename) {
+                filename = argv[i];
+                consumed = 1;
+            }
+        }
+        if (consumed <= 0) {
+            static const char *options[] = { "[sample.wav]", NULL };
+            SDLTest_CommonLogUsage(state, argv[0], options);
+            return 1;
+        }
+
+        i += consumed;
+    }
+
+    /* Load the SDL library */
+    if (!SDLTest_CommonInit(state)) {
+        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't initialize SDL: %s", SDL_GetError());
+        return 1;
+    }
+
+    SDL_Log("Using audio driver: %s", SDL_GetCurrentAudioDriver());
+
+    filename = GetResourceFilename(filename, "sample.wav");
+
+    devices = SDL_GetAudioPlaybackDevices(&devcount);
+    if (!devices) {
+        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Don't see any specific audio playback devices!");
+    } else {
+        /* Load the wave file into memory */
+        if (SDL_LoadWAV(filename, &spec, &sound, &soundlen)) {
+            test_multi_audio(devices, devcount);
+            SDL_free(sound);
+        } else {
+            SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't load %s: %s", filename,
+                         SDL_GetError());
+        }
+        SDL_free(devices);
+    }
+
+    SDL_free(filename);
+
+    SDLTest_CommonQuit(state);
+
+    return 0;
+}
+