Corrected header file documentation comment.

2025-05-22 12:48:28 +00:00 · 2014-11-22 22:20:40 +01:00 · 2014-11-22 22:20:40 +01:00 · 9c398852e6
commit 9c398852e6
1896 changed files with 489150 additions and 0 deletions
--- a/test/loopwave.c
+++ b/test/loopwave.c
@ -0,0 +1,144 @@
+/*
+  Copyright (C) 1997-2014 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 sound */
+
+/* loopwaves.c is much more robust in handling WAVE files --
+    This is only for simple WAVEs
+*/
+#include "SDL_config.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#if HAVE_SIGNAL_H
+#include <signal.h>
+#endif
+
+#include "SDL.h"
+#include "SDL_audio.h"
+
+struct
+{
+    SDL_AudioSpec spec;
+    Uint8 *sound;               /* Pointer to wave data */
+    Uint32 soundlen;            /* Length of wave data */
+    int soundpos;               /* Current play position */
+} wave;
+
+
+/* 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 *unused, Uint8 * stream, int len)
+{
+    Uint8 *waveptr;
+    int waveleft;
+
+    /* Set up the pointers */
+    waveptr = wave.sound + wave.soundpos;
+    waveleft = wave.soundlen - wave.soundpos;
+
+    /* Go! */
+    while (waveleft <= len) {
+        SDL_memcpy(stream, waveptr, waveleft);
+        stream += waveleft;
+        len -= waveleft;
+        waveptr = wave.sound;
+        waveleft = wave.soundlen;
+        wave.soundpos = 0;
+    }
+    SDL_memcpy(stream, waveptr, len);
+    wave.soundpos += len;
+}
+
+static int done = 0;
+void
+poked(int sig)
+{
+    done = 1;
+}
+
+int
+main(int argc, char *argv[])
+{
+    int i;
+    char filename[4096];
+
+	/* Enable standard application logging */
+	SDL_LogSetPriority(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_INFO);
+
+    /* Load the SDL library */
+    if (SDL_Init(SDL_INIT_AUDIO) < 0) {
+        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't initialize SDL: %s\n", SDL_GetError());
+        return (1);
+    }
+
+    if (argc > 1) {
+        SDL_strlcpy(filename, argv[1], sizeof(filename));
+    } else {
+        SDL_strlcpy(filename, "sample.wav", sizeof(filename));
+    }
+    /* Load the wave file into memory */
+    if (SDL_LoadWAV(filename, &wave.spec, &wave.sound, &wave.soundlen) == NULL) {
+        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't load %s: %s\n", filename, SDL_GetError());
+        quit(1);
+    }
+
+    wave.spec.callback = fillerup;
+#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));
+    }
+
+    /* Initialize fillerup() variables */
+    if (SDL_OpenAudio(&wave.spec, NULL) < 0) {
+        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't open audio: %s\n", SDL_GetError());
+        SDL_FreeWAV(wave.sound);
+        quit(2);
+    }
+
+    SDL_Log("Using audio driver: %s\n", SDL_GetCurrentAudioDriver());
+
+    /* Let the audio run */
+    SDL_PauseAudio(0);
+    while (!done && (SDL_GetAudioStatus() == SDL_AUDIO_PLAYING))
+        SDL_Delay(1000);
+
+    /* Clean up on signal */
+    SDL_CloseAudio();
+    SDL_FreeWAV(wave.sound);
+    SDL_Quit();
+    return (0);
+}
+
+/* vi: set ts=4 sw=4 expandtab: */