Merge branch 'v1.19' of git://repo.or.cz/openal-soft into v1.19v1.19

1 files changed, 177 insertions, 0 deletions

diff --git a/examples/alplay.c b/examples/alplay.c
new file mode 100644
index 00000000..81cb56d5
--- /dev/null
+++ b/examples/alplay.c
@@ -0,0 +1,177 @@
+/*
+ * OpenAL Source Play Example
+ *
+ * Copyright (c) 2017 by Chris Robinson <[email protected]>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+/* This file contains an example for playing a sound buffer. */
+
+#include <stdio.h>
+#include <assert.h>
+
+#include <SDL_sound.h>
+
+#include "AL/al.h"
+#include "AL/alc.h"
+
+#include "common/alhelpers.h"
+
+
+/* LoadBuffer loads the named audio file into an OpenAL buffer object, and
+ * returns the new buffer ID.
+ */
+static ALuint LoadSound(const char *filename)
+{
+    Sound_Sample *sample;
+    ALenum err, format;
+    ALuint buffer;
+    Uint32 slen;
+
+    /* Open the audio file */
+    sample = Sound_NewSampleFromFile(filename, NULL, 65536);
+    if(!sample)
+    {
+        fprintf(stderr, "Could not open audio in %s\n", filename);
+        return 0;
+    }
+
+    /* Get the sound format, and figure out the OpenAL format */
+    if(sample->actual.channels == 1)
+    {
+        if(sample->actual.format == AUDIO_U8)
+            format = AL_FORMAT_MONO8;
+        else if(sample->actual.format == AUDIO_S16SYS)
+            format = AL_FORMAT_MONO16;
+        else
+        {
+            fprintf(stderr, "Unsupported sample format: 0x%04x\n", sample->actual.format);
+            Sound_FreeSample(sample);
+            return 0;
+        }
+    }
+    else if(sample->actual.channels == 2)
+    {
+        if(sample->actual.format == AUDIO_U8)
+            format = AL_FORMAT_STEREO8;
+        else if(sample->actual.format == AUDIO_S16SYS)
+            format = AL_FORMAT_STEREO16;
+        else
+        {
+            fprintf(stderr, "Unsupported sample format: 0x%04x\n", sample->actual.format);
+            Sound_FreeSample(sample);
+            return 0;
+        }
+    }
+    else
+    {
+        fprintf(stderr, "Unsupported channel count: %d\n", sample->actual.channels);
+        Sound_FreeSample(sample);
+        return 0;
+    }
+
+    /* Decode the whole audio stream to a buffer. */
+    slen = Sound_DecodeAll(sample);
+    if(!sample->buffer || slen == 0)
+    {
+        fprintf(stderr, "Failed to read audio from %s\n", filename);
+        Sound_FreeSample(sample);
+        return 0;
+    }
+
+    /* Buffer the audio data into a new buffer object, then free the data and
+     * close the file. */
+    buffer = 0;
+    alGenBuffers(1, &buffer);
+    alBufferData(buffer, format, sample->buffer, slen, sample->actual.rate);
+    Sound_FreeSample(sample);
+
+    /* Check if an error occured, and clean up if so. */
+    err = alGetError();
+    if(err != AL_NO_ERROR)
+    {
+        fprintf(stderr, "OpenAL Error: %s\n", alGetString(err));
+        if(buffer && alIsBuffer(buffer))
+            alDeleteBuffers(1, &buffer);
+        return 0;
+    }
+
+    return buffer;
+}
+
+
+int main(int argc, char **argv)
+{
+    ALuint source, buffer;
+    ALfloat offset;
+    ALenum state;
+
+    /* Print out usage if no arguments were specified */
+    if(argc < 2)
+    {
+        fprintf(stderr, "Usage: %s [-device <name>] <filename>\n", argv[0]);
+        return 1;
+    }
+
+    /* Initialize OpenAL. */
+    argv++; argc--;
+    if(InitAL(&argv, &argc) != 0)
+        return 1;
+
+    /* Initialize SDL_sound. */
+    Sound_Init();
+
+    /* Load the sound into a buffer. */
+    buffer = LoadSound(argv[0]);
+    if(!buffer)
+    {
+        Sound_Quit();
+        CloseAL();
+        return 1;
+    }
+
+    /* Create the source to play the sound with. */
+    source = 0;
+    alGenSources(1, &source);
+    alSourcei(source, AL_BUFFER, buffer);
+    assert(alGetError()==AL_NO_ERROR && "Failed to setup sound source");
+
+    /* Play the sound until it finishes. */
+    alSourcePlay(source);
+    do {
+        al_nssleep(10000000);
+        alGetSourcei(source, AL_SOURCE_STATE, &state);
+
+        /* Get the source offset. */
+        alGetSourcef(source, AL_SEC_OFFSET, &offset);
+        printf("\rOffset: %f  ", offset);
+        fflush(stdout);
+    } while(alGetError() == AL_NO_ERROR && state == AL_PLAYING);
+    printf("\n");
+
+    /* All done. Delete resources, and close down SDL_sound and OpenAL. */
+    alDeleteSources(1, &source);
+    alDeleteBuffers(1, &buffer);
+
+    Sound_Quit();
+    CloseAL();
+
+    return 0;
+}