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authorChris Robinson <[email protected]>2017-03-04 20:25:10 -0800
committerChris Robinson <[email protected]>2017-03-04 22:30:57 -0800
commit87fd28835953bf5bb2a84f061675bddbcc5bf40d (patch)
tree69f048f642e6097ba7ca1b8b14a5faa02fa70e96 /examples/common/alhelpers.c
parentc013068003a6ccd63e335fe94f43caf1b769ff7e (diff)
Remove unnecessary wrappers around SDL_sound
Also remove wrappers for the now-unsupported buffer_samples extension.
Diffstat (limited to 'examples/common/alhelpers.c')
-rw-r--r--examples/common/alhelpers.c243
1 files changed, 7 insertions, 236 deletions
diff --git a/examples/common/alhelpers.c b/examples/common/alhelpers.c
index 43548b5c..fab039e9 100644
--- a/examples/common/alhelpers.c
+++ b/examples/common/alhelpers.c
@@ -103,243 +103,14 @@ void CloseAL(void)
}
-/* GetFormat retrieves a compatible buffer format given the channel config and
- * sample type. If an alIsBufferFormatSupportedSOFT-compatible function is
- * provided, it will be called to find the closest-matching format from
- * AL_SOFT_buffer_samples. Returns AL_NONE (0) if no supported format can be
- * found. */
-ALenum GetFormat(ALenum channels, ALenum type, LPALISBUFFERFORMATSUPPORTEDSOFT palIsBufferFormatSupportedSOFT)
+const char *FormatName(ALenum format)
{
- 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);
-}
-
-
-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)
+ switch(format)
{
- 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";
+ case AL_FORMAT_MONO8: return "Mono, U8";
+ case AL_FORMAT_MONO16: return "Mono, S16";
+ case AL_FORMAT_STEREO8: return "Stereo, U8";
+ case AL_FORMAT_STEREO16: return "Stereo, S16";
}
- 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);
+ return "Unknown Format";
}