Move alhelpers and alffmpeg code to a common sub-directory

1 files changed, 0 insertions, 319 deletions

diff --git a/examples/alhelpers.c b/examples/alhelpers.c
deleted file mode 100644
index dbfe2383..00000000
--- a/examples/alhelpers.c
+++ /dev/null
@@ -1,319 +0,0 @@
-/*
- * OpenAL Helpers
- *
- * Copyright (c) 2011 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 routines to help with some menial OpenAL-related tasks,
- * such as opening a device and setting up a context, closing the device and
- * destroying its context, converting between frame counts and byte lengths,
- * finding an appropriate buffer format, and getting readable strings for
- * channel configs and sample types. */
-
-#include <stdio.h>
-
-#include "AL/al.h"
-#include "AL/alc.h"
-#include "AL/alext.h"
-
-#include "alhelpers.h"
-
-
-const char *ChannelsName(ALenum chans)
-{
-    switch(chans)
-    {
-    case AL_MONO_SOFT: return "Mono";
-    case AL_STEREO_SOFT: return "Stereo";
-    case AL_REAR_SOFT: return "Rear";
-    case AL_QUAD_SOFT: return "Quadraphonic";
-    case AL_5POINT1_SOFT: return "5.1 Surround";
-    case AL_6POINT1_SOFT: return "6.1 Surround";
-    case AL_7POINT1_SOFT: return "7.1 Surround";
-    }
-    return "Unknown Channels";
-}
-
-const char *TypeName(ALenum type)
-{
-    switch(type)
-    {
-    case AL_BYTE_SOFT: return "S8";
-    case AL_UNSIGNED_BYTE_SOFT: return "U8";
-    case AL_SHORT_SOFT: return "S16";
-    case AL_UNSIGNED_SHORT_SOFT: return "U16";
-    case AL_INT_SOFT: return "S32";
-    case AL_UNSIGNED_INT_SOFT: return "U32";
-    case AL_FLOAT_SOFT: return "Float32";
-    case AL_DOUBLE_SOFT: return "Float64";
-    }
-    return "Unknown Type";
-}
-
-
-ALsizei FramesToBytes(ALsizei size, ALenum channels, ALenum type)
-{
-    switch(channels)
-    {
-    case AL_MONO_SOFT:    size *= 1; break;
-    case AL_STEREO_SOFT:  size *= 2; break;
-    case AL_REAR_SOFT:    size *= 2; break;
-    case AL_QUAD_SOFT:    size *= 4; break;
-    case AL_5POINT1_SOFT: size *= 6; break;
-    case AL_6POINT1_SOFT: size *= 7; break;
-    case AL_7POINT1_SOFT: size *= 8; break;
-    }
-
-    switch(type)
-    {
-    case AL_BYTE_SOFT:           size *= sizeof(ALbyte); break;
-    case AL_UNSIGNED_BYTE_SOFT:  size *= sizeof(ALubyte); break;
-    case AL_SHORT_SOFT:          size *= sizeof(ALshort); break;
-    case AL_UNSIGNED_SHORT_SOFT: size *= sizeof(ALushort); break;
-    case AL_INT_SOFT:            size *= sizeof(ALint); break;
-    case AL_UNSIGNED_INT_SOFT:   size *= sizeof(ALuint); break;
-    case AL_FLOAT_SOFT:          size *= sizeof(ALfloat); break;
-    case AL_DOUBLE_SOFT:         size *= sizeof(ALdouble); break;
-    }
-
-    return size;
-}
-
-ALsizei BytesToFrames(ALsizei size, ALenum channels, ALenum type)
-{
-    return size / FramesToBytes(1, channels, type);
-}
-
-
-ALenum GetFormat(ALenum channels, ALenum type, LPALISBUFFERFORMATSUPPORTEDSOFT palIsBufferFormatSupportedSOFT)
-{
-    ALenum format = AL_NONE;
-
-    /* If using AL_SOFT_buffer_samples, try looking through its formats */
-    if(palIsBufferFormatSupportedSOFT)
-    {
-        /* AL_SOFT_buffer_samples is more lenient with matching formats. The
-         * specified sample type does not need to match the returned format,
-         * but it is nice to try to get something close. */
-        if(type == AL_UNSIGNED_BYTE_SOFT || type == AL_BYTE_SOFT)
-        {
-            if(channels == AL_MONO_SOFT) format = AL_MONO8_SOFT;
-            else if(channels == AL_STEREO_SOFT) format = AL_STEREO8_SOFT;
-            else if(channels == AL_QUAD_SOFT) format = AL_QUAD8_SOFT;
-            else if(channels == AL_5POINT1_SOFT) format = AL_5POINT1_8_SOFT;
-            else if(channels == AL_6POINT1_SOFT) format = AL_6POINT1_8_SOFT;
-            else if(channels == AL_7POINT1_SOFT) format = AL_7POINT1_8_SOFT;
-        }
-        else if(type == AL_UNSIGNED_SHORT_SOFT || type == AL_SHORT_SOFT)
-        {
-            if(channels == AL_MONO_SOFT) format = AL_MONO16_SOFT;
-            else if(channels == AL_STEREO_SOFT) format = AL_STEREO16_SOFT;
-            else if(channels == AL_QUAD_SOFT) format = AL_QUAD16_SOFT;
-            else if(channels == AL_5POINT1_SOFT) format = AL_5POINT1_16_SOFT;
-            else if(channels == AL_6POINT1_SOFT) format = AL_6POINT1_16_SOFT;
-            else if(channels == AL_7POINT1_SOFT) format = AL_7POINT1_16_SOFT;
-        }
-        else if(type == AL_UNSIGNED_BYTE3_SOFT || type == AL_BYTE3_SOFT ||
-                type == AL_UNSIGNED_INT_SOFT || type == AL_INT_SOFT ||
-                type == AL_FLOAT_SOFT || type == AL_DOUBLE_SOFT)
-        {
-            if(channels == AL_MONO_SOFT) format = AL_MONO32F_SOFT;
-            else if(channels == AL_STEREO_SOFT) format = AL_STEREO32F_SOFT;
-            else if(channels == AL_QUAD_SOFT) format = AL_QUAD32F_SOFT;
-            else if(channels == AL_5POINT1_SOFT) format = AL_5POINT1_32F_SOFT;
-            else if(channels == AL_6POINT1_SOFT) format = AL_6POINT1_32F_SOFT;
-            else if(channels == AL_7POINT1_SOFT) format = AL_7POINT1_32F_SOFT;
-        }
-
-        if(format != AL_NONE && !palIsBufferFormatSupportedSOFT(format))
-            format = AL_NONE;
-
-        /* A matching format was not found or supported. Try 32-bit float. */
-        if(format == AL_NONE)
-        {
-            if(channels == AL_MONO_SOFT) format = AL_MONO32F_SOFT;
-            else if(channels == AL_STEREO_SOFT) format = AL_STEREO32F_SOFT;
-            else if(channels == AL_QUAD_SOFT) format = AL_QUAD32F_SOFT;
-            else if(channels == AL_5POINT1_SOFT) format = AL_5POINT1_32F_SOFT;
-            else if(channels == AL_6POINT1_SOFT) format = AL_6POINT1_32F_SOFT;
-            else if(channels == AL_7POINT1_SOFT) format = AL_7POINT1_32F_SOFT;
-
-            if(format != AL_NONE && !palIsBufferFormatSupportedSOFT(format))
-                format = AL_NONE;
-        }
-        /* 32-bit float not supported. Try 16-bit int. */
-        if(format == AL_NONE)
-        {
-            if(channels == AL_MONO_SOFT) format = AL_MONO16_SOFT;
-            else if(channels == AL_STEREO_SOFT) format = AL_STEREO16_SOFT;
-            else if(channels == AL_QUAD_SOFT) format = AL_QUAD16_SOFT;
-            else if(channels == AL_5POINT1_SOFT) format = AL_5POINT1_16_SOFT;
-            else if(channels == AL_6POINT1_SOFT) format = AL_6POINT1_16_SOFT;
-            else if(channels == AL_7POINT1_SOFT) format = AL_7POINT1_16_SOFT;
-
-            if(format != AL_NONE && !palIsBufferFormatSupportedSOFT(format))
-                format = AL_NONE;
-        }
-        /* 16-bit int not supported. Try 8-bit int. */
-        if(format == AL_NONE)
-        {
-            if(channels == AL_MONO_SOFT) format = AL_MONO8_SOFT;
-            else if(channels == AL_STEREO_SOFT) format = AL_STEREO8_SOFT;
-            else if(channels == AL_QUAD_SOFT) format = AL_QUAD8_SOFT;
-            else if(channels == AL_5POINT1_SOFT) format = AL_5POINT1_8_SOFT;
-            else if(channels == AL_6POINT1_SOFT) format = AL_6POINT1_8_SOFT;
-            else if(channels == AL_7POINT1_SOFT) format = AL_7POINT1_8_SOFT;
-
-            if(format != AL_NONE && !palIsBufferFormatSupportedSOFT(format))
-                format = AL_NONE;
-        }
-
-        return format;
-    }
-
-    /* We use the AL_EXT_MCFORMATS extension to provide output of Quad, 5.1,
-     * and 7.1 channel configs, AL_EXT_FLOAT32 for 32-bit float samples, and
-     * AL_EXT_DOUBLE for 64-bit float samples. */
-    if(type == AL_UNSIGNED_BYTE_SOFT)
-    {
-        if(channels == AL_MONO_SOFT)
-            format = AL_FORMAT_MONO8;
-        else if(channels == AL_STEREO_SOFT)
-            format = AL_FORMAT_STEREO8;
-        else if(alIsExtensionPresent("AL_EXT_MCFORMATS"))
-        {
-            if(channels == AL_QUAD_SOFT)
-                format = alGetEnumValue("AL_FORMAT_QUAD8");
-            else if(channels == AL_5POINT1_SOFT)
-                format = alGetEnumValue("AL_FORMAT_51CHN8");
-            else if(channels == AL_6POINT1_SOFT)
-                format = alGetEnumValue("AL_FORMAT_61CHN8");
-            else if(channels == AL_7POINT1_SOFT)
-                format = alGetEnumValue("AL_FORMAT_71CHN8");
-        }
-    }
-    else if(type == AL_SHORT_SOFT)
-    {
-        if(channels == AL_MONO_SOFT)
-            format = AL_FORMAT_MONO16;
-        else if(channels == AL_STEREO_SOFT)
-            format = AL_FORMAT_STEREO16;
-        else if(alIsExtensionPresent("AL_EXT_MCFORMATS"))
-        {
-            if(channels == AL_QUAD_SOFT)
-                format = alGetEnumValue("AL_FORMAT_QUAD16");
-            else if(channels == AL_5POINT1_SOFT)
-                format = alGetEnumValue("AL_FORMAT_51CHN16");
-            else if(channels == AL_6POINT1_SOFT)
-                format = alGetEnumValue("AL_FORMAT_61CHN16");
-            else if(channels == AL_7POINT1_SOFT)
-                format = alGetEnumValue("AL_FORMAT_71CHN16");
-        }
-    }
-    else if(type == AL_FLOAT_SOFT && alIsExtensionPresent("AL_EXT_FLOAT32"))
-    {
-        if(channels == AL_MONO_SOFT)
-            format = alGetEnumValue("AL_FORMAT_MONO_FLOAT32");
-        else if(channels == AL_STEREO_SOFT)
-            format = alGetEnumValue("AL_FORMAT_STEREO_FLOAT32");
-        else if(alIsExtensionPresent("AL_EXT_MCFORMATS"))
-        {
-            if(channels == AL_QUAD_SOFT)
-                format = alGetEnumValue("AL_FORMAT_QUAD32");
-            else if(channels == AL_5POINT1_SOFT)
-                format = alGetEnumValue("AL_FORMAT_51CHN32");
-            else if(channels == AL_6POINT1_SOFT)
-                format = alGetEnumValue("AL_FORMAT_61CHN32");
-            else if(channels == AL_7POINT1_SOFT)
-                format = alGetEnumValue("AL_FORMAT_71CHN32");
-        }
-    }
-    else if(type == AL_DOUBLE_SOFT && alIsExtensionPresent("AL_EXT_DOUBLE"))
-    {
-        if(channels == AL_MONO_SOFT)
-            format = alGetEnumValue("AL_FORMAT_MONO_DOUBLE");
-        else if(channels == AL_STEREO_SOFT)
-            format = alGetEnumValue("AL_FORMAT_STEREO_DOUBLE");
-    }
-
-    /* NOTE: It seems OSX returns -1 from alGetEnumValue for unknown enums, as
-     * opposed to 0. Correct it. */
-    if(format == -1)
-        format = 0;
-
-    return format;
-}
-
-
-void AL_APIENTRY wrap_BufferSamples(ALuint buffer, ALuint samplerate,
-                                    ALenum internalformat, ALsizei samples,
-                                    ALenum channels, ALenum type,
-                                    const ALvoid *data)
-{
-    alBufferData(buffer, internalformat, data,
-                 FramesToBytes(samples, channels, type),
-                 samplerate);
-}
-
-
-int InitAL(void)
-{
-    ALCdevice *device;
-    ALCcontext *ctx;
-
-    /* Open and initialize a device with default settings */
-    device = alcOpenDevice(NULL);
-    if(!device)
-    {
-        fprintf(stderr, "Could not open a device!\n");
-        return 1;
-    }
-
-    ctx = alcCreateContext(device, NULL);
-    if(ctx == NULL || alcMakeContextCurrent(ctx) == ALC_FALSE)
-    {
-        if(ctx != NULL)
-            alcDestroyContext(ctx);
-        alcCloseDevice(device);
-        fprintf(stderr, "Could not set a context!\n");
-        return 1;
-    }
-
-    return 0;
-}
-
-void CloseAL(void)
-{
-    ALCdevice *device;
-    ALCcontext *ctx;
-
-    /* Close the device belonging to the current context, and destroy the
-     * context. */
-    ctx = alcGetCurrentContext();
-    if(ctx == NULL)
-        return;
-
-    device = alcGetContextsDevice(ctx);
-
-    alcMakeContextCurrent(NULL);
-    alcDestroyContext(ctx);
-    alcCloseDevice(device);
-}