pcm/PcmVolume: rename to Volume.cxx

1 files changed, 0 insertions, 178 deletions

diff --git a/src/pcm/PcmVolume.cxx b/src/pcm/PcmVolume.cxx
deleted file mode 100644
index 5c0a1fbd3..000000000
--- a/src/pcm/PcmVolume.cxx
+++ /dev/null
@@ -1,178 +0,0 @@
-/*
- * Copyright (C) 2003-2013 The Music Player Daemon Project
- * http://www.musicpd.org
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#include "config.h"
-#include "PcmVolume.hxx"
-#include "PcmUtils.hxx"
-#include "Traits.hxx"
-#include "AudioFormat.hxx"
-
-#include <stdint.h>
-#include <string.h>
-
-template<SampleFormat F, class Traits=SampleTraits<F>>
-static void
-pcm_volume_change(typename Traits::pointer_type buffer,
-		  typename Traits::const_pointer_type end,
-		  int volume)
-{
-	while (buffer < end) {
-		typename Traits::long_type sample = *buffer;
-
-		sample = (sample * volume + pcm_volume_dither() +
-			  PCM_VOLUME_1S / 2)
-			>> PCM_VOLUME_BITS;
-
-		*buffer++ = PcmClamp<F, Traits>(sample);
-	}
-}
-
-static void
-pcm_volume_change_8(int8_t *buffer, const int8_t *end, int volume)
-{
-	pcm_volume_change<SampleFormat::S8>(buffer, end, volume);
-}
-
-static void
-pcm_volume_change_16(int16_t *buffer, const int16_t *end, int volume)
-{
-	pcm_volume_change<SampleFormat::S16>(buffer, end, volume);
-}
-
-#ifdef __i386__
-/**
- * Optimized volume function for i386.  Use the EDX:EAX 2*32 bit
- * multiplication result instead of emulating 64 bit multiplication.
- */
-static inline int32_t
-pcm_volume_sample_24(int32_t sample, int32_t volume, gcc_unused int32_t dither)
-{
-	int32_t result;
-
-	asm(/* edx:eax = sample * volume */
-	    "imul %2\n"
-
-	    /* "add %3, %1\n"  dithering disabled for now, because we
-	       have no overflow check - is dithering really important
-	       here? */
-
-	    /* eax = edx:eax / PCM_VOLUME_1 */
-	    "sal $22, %%edx\n"
-	    "shr $10, %1\n"
-	    "or %%edx, %1\n"
-
-	    : "=a"(result)
-	    : "0"(sample), "r"(volume) /* , "r"(dither) */
-	    : "edx"
-	    );
-
-	return result;
-}
-#endif
-
-static void
-pcm_volume_change_24(int32_t *buffer, const int32_t *end, int volume)
-{
-#ifdef __i386__
-	while (buffer < end) {
-		/* assembly version for i386 */
-		int32_t sample = *buffer;
-
-		sample = pcm_volume_sample_24(sample, volume,
-					      pcm_volume_dither());
-	}
-#else
-	pcm_volume_change<SampleFormat::S24_P32>(buffer, end, volume);
-#endif
-}
-
-static void
-pcm_volume_change_32(int32_t *buffer, const int32_t *end, int volume)
-{
-#ifdef __i386__
-	while (buffer < end) {
-		/* assembly version for i386 */
-		int32_t sample = *buffer;
-
-		*buffer++ = pcm_volume_sample_24(sample, volume, 0);
-	}
-#else
-	pcm_volume_change<SampleFormat::S32>(buffer, end, volume);
-#endif
-}
-
-static void
-pcm_volume_change_float(float *buffer, const float *end, float volume)
-{
-	while (buffer < end) {
-		float sample = *buffer;
-		sample *= volume;
-		*buffer++ = sample;
-	}
-}
-
-bool
-pcm_volume(void *buffer, size_t length,
-	   SampleFormat format,
-	   int volume)
-{
-	if (volume == PCM_VOLUME_1S)
-		return true;
-
-	if (volume <= 0) {
-		memset(buffer, 0, length);
-		return true;
-	}
-
-	const void *end = pcm_end_pointer(buffer, length);
-	switch (format) {
-	case SampleFormat::UNDEFINED:
-	case SampleFormat::DSD:
-		/* not implemented */
-		return false;
-
-	case SampleFormat::S8:
-		pcm_volume_change_8((int8_t *)buffer, (const int8_t *)end,
-				    volume);
-		return true;
-
-	case SampleFormat::S16:
-		pcm_volume_change_16((int16_t *)buffer, (const int16_t *)end,
-				     volume);
-		return true;
-
-	case SampleFormat::S24_P32:
-		pcm_volume_change_24((int32_t *)buffer, (const int32_t *)end,
-				     volume);
-		return true;
-
-	case SampleFormat::S32:
-		pcm_volume_change_32((int32_t *)buffer, (const int32_t *)end,
-				     volume);
-		return true;
-
-	case SampleFormat::FLOAT:
-		pcm_volume_change_float((float *)buffer, (const float *)end,
-					pcm_volume_to_float(volume));
-		return true;
-	}
-
-	assert(false);
-	gcc_unreachable();
-}