Squashed 'external/SDL/' content from commit f317581c91

git-subtree-dir: external/SDL
git-subtree-split: f317581c91961ee628446886dd4df87e9c16ac79

test/loopwave.c

@@ -0,0 +1,140 @@
+/*
+  Copyright (C) 1997-2024 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 load a wave file and loop playing it using SDL audio */
+
+/* loopwaves.c is much more robust in handling WAVE files --
+    This is only for simple WAVEs
+*/
+#include <stdlib.h>
+
+#define SDL_MAIN_USE_CALLBACKS 1
+#include <SDL3/SDL.h>
+#include <SDL3/SDL_main.h>
+#include <SDL3/SDL_test.h>
+#include "testutils.h"
+
+static struct
+{
+    SDL_AudioSpec spec;
+    Uint8 *sound;    /* Pointer to wave data */
+    Uint32 soundlen; /* Length of wave data */
+} wave;
+
+static SDL_AudioStream *stream;
+static SDLTest_CommonState *state;
+
+static int fillerup(void)
+{
+    const int minimum = (wave.soundlen / SDL_AUDIO_FRAMESIZE(wave.spec)) / 2;
+    if (SDL_GetAudioStreamQueued(stream) < minimum) {
+        SDL_PutAudioStreamData(stream, wave.sound, wave.soundlen);
+    }
+    return SDL_APP_CONTINUE;
+}
+
+SDL_AppResult SDL_AppInit(void **appstate, int argc, char *argv[])
+{
+    int i;
+    char *filename = NULL;
+
+    /* this doesn't have to run very much, so give up tons of CPU time between iterations. */
+    SDL_SetHint(SDL_HINT_MAIN_CALLBACK_RATE, "5");
+
+    /* Initialize test framework */
+    state = SDLTest_CommonCreateState(argv, 0);
+    if (!state) {
+        return SDL_APP_SUCCESS;
+    }
+
+    /* Enable standard application logging */
+    SDL_SetLogPriority(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_INFO);
+
+    /* 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);
+            exit(1);
+        }
+
+        i += consumed;
+    }
+
+    /* Load the SDL library */
+    if (!SDL_Init(SDL_INIT_AUDIO | SDL_INIT_EVENTS)) {
+        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't initialize SDL: %s\n", SDL_GetError());
+        return SDL_APP_FAILURE;
+    }
+
+    filename = GetResourceFilename(filename, "sample.wav");
+
+    if (!filename) {
+        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "%s\n", SDL_GetError());
+        return SDL_APP_FAILURE;
+    }
+
+    /* Load the wave file into memory */
+    if (!SDL_LoadWAV(filename, &wave.spec, &wave.sound, &wave.soundlen)) {
+        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't load %s: %s\n", filename, SDL_GetError());
+        SDL_free(filename);
+        return SDL_APP_FAILURE;
+    }
+
+    SDL_free(filename);
+
+    /* 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("Using audio driver: %s\n", SDL_GetCurrentAudioDriver());
+
+    stream = SDL_OpenAudioDeviceStream(SDL_AUDIO_DEVICE_DEFAULT_PLAYBACK, &wave.spec, NULL, NULL);
+    if (!stream) {
+        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't create audio stream: %s\n", SDL_GetError());
+        return SDL_APP_FAILURE;
+    }
+
+    SDL_ResumeAudioStreamDevice(stream);
+
+    return SDL_APP_CONTINUE;
+}
+
+SDL_AppResult SDL_AppEvent(void *appstate, SDL_Event *event)
+{
+    return (event->type == SDL_EVENT_QUIT) ? SDL_APP_SUCCESS : SDL_APP_CONTINUE;
+}
+
+SDL_AppResult SDL_AppIterate(void *appstate)
+{
+    return fillerup();
+}
+
+void SDL_AppQuit(void *appstate)
+{
+    SDL_DestroyAudioStream(stream);
+    SDL_free(wave.sound);
+    SDL_Quit();
+    SDLTest_CommonDestroyState(state);
+}
+