mirror of
https://gitlab.freedesktop.org/pulseaudio/pulseaudio.git
synced 2025-10-29 05:40:23 -04:00
97da92d894
This patch removes all occurrences of double and triple
newlines.
Command used for this:
find . -type d \( -name ffmpeg \) -prune -o \
-regex '\(.*\.[hc]\|.*\.cc\)' \
-a -not -name 'adrian-aec.*' -a -not \
-name reserve.c -a -not -name 'rtkit.*' \
-exec sed -i -e '/^$/{N;s/^\n$//}' {} \;
Two passes were needed to remove triple newlines.
The excluded files are mirrored files from external sources.
265 lines
12 KiB
C
265 lines
12 KiB
C
/***
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This file is part of PulseAudio.
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Copyright 2004-2006 Lennart Poettering
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Copyright 2009 Wim Taymans <wim.taymans@collabora.co.uk>
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PulseAudio is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published
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by the Free Software Foundation; either version 2.1 of the License,
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or (at your option) any later version.
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PulseAudio is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with PulseAudio; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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USA.
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***/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <pulse/rtclock.h>
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#include <pulsecore/random.h>
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#include <pulsecore/macro.h>
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#include <pulsecore/endianmacros.h>
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#include "cpu-x86.h"
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#include "sample-util.h"
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#if defined (__i386__) || defined (__amd64__)
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#define VOLUME_32x16(s,v) /* .. | vh | vl | */ \
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" pxor %%xmm4, %%xmm4 \n\t" /* .. | 0 | 0 | */ \
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" punpcklwd %%xmm4, "#s" \n\t" /* .. | 0 | p0 | */ \
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" pcmpgtw "#s", %%xmm4 \n\t" /* .. | 0 | s(p0) | */ \
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" pand "#v", %%xmm4 \n\t" /* .. | 0 | (vl) | */ \
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" movdqa "#s", %%xmm5 \n\t" \
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" pmulhuw "#v", "#s" \n\t" /* .. | 0 | vl*p0 | */ \
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" psubd %%xmm4, "#s" \n\t" /* .. | 0 | vl*p0 | + sign correct */ \
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" psrld $16, "#v" \n\t" /* .. | 0 | vh | */ \
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" pmaddwd %%xmm5, "#v" \n\t" /* .. | p0 * vh | */ \
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" paddd "#s", "#v" \n\t" /* .. | p0 * v0 | */ \
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" packssdw "#v", "#v" \n\t" /* .. | p1*v1 | p0*v0 | */
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#define MOD_ADD(a,b) \
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" add "#a", %3 \n\t" /* channel += inc */ \
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" mov %3, %4 \n\t" \
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" sub "#b", %4 \n\t" /* tmp = channel - channels */ \
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" cmovae %4, %3 \n\t" /* if (tmp >= 0) channel = tmp */
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/* swap 16 bits */
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#define SWAP_16(s) \
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" movdqa "#s", %%xmm4 \n\t" /* .. | h l | */ \
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" psrlw $8, %%xmm4 \n\t" /* .. | 0 h | */ \
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" psllw $8, "#s" \n\t" /* .. | l 0 | */ \
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" por %%xmm4, "#s" \n\t" /* .. | l h | */
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/* swap 2 registers 16 bits for better pairing */
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#define SWAP_16_2(s1,s2) \
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" movdqa "#s1", %%xmm4 \n\t" /* .. | h l | */ \
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" movdqa "#s2", %%xmm5 \n\t" \
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" psrlw $8, %%xmm4 \n\t" /* .. | 0 h | */ \
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" psrlw $8, %%xmm5 \n\t" \
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" psllw $8, "#s1" \n\t" /* .. | l 0 | */ \
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" psllw $8, "#s2" \n\t" \
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" por %%xmm4, "#s1" \n\t" /* .. | l h | */ \
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" por %%xmm5, "#s2" \n\t"
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static int channel_overread_table[8] = {8,8,8,12,8,10,12,14};
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static void pa_volume_s16ne_sse2(int16_t *samples, const int32_t *volumes, unsigned channels, unsigned length) {
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pa_reg_x86 channel, temp;
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/* Channels must be at least 8 and always a multiple of the original number.
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* This is also the max amount we overread the volume array, which should
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* have enough padding. */
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if (channels < 8)
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channels = channel_overread_table[channels];
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__asm__ __volatile__ (
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" xor %3, %3 \n\t"
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" sar $1, %2 \n\t" /* length /= sizeof (int16_t) */
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" test $1, %2 \n\t" /* check for odd samples */
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" je 2f \n\t"
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" movd (%q1, %3, 4), %%xmm0 \n\t" /* | v0h | v0l | */
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" movw (%0), %w4 \n\t" /* .. | p0 | */
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" movd %4, %%xmm1 \n\t"
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VOLUME_32x16 (%%xmm1, %%xmm0)
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" movd %%xmm0, %4 \n\t" /* .. | p0*v0 | */
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" movw %w4, (%0) \n\t"
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" add $2, %0 \n\t"
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MOD_ADD ($1, %5)
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"2: \n\t"
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" sar $1, %2 \n\t" /* prepare for processing 2 samples at a time */
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" test $1, %2 \n\t"
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" je 4f \n\t"
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"3: \n\t" /* do samples in groups of 2 */
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" movq (%q1, %3, 4), %%xmm0 \n\t" /* | v1h | v1l | v0h | v0l | */
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" movd (%0), %%xmm1 \n\t" /* .. | p1 | p0 | */
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VOLUME_32x16 (%%xmm1, %%xmm0)
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" movd %%xmm0, (%0) \n\t" /* .. | p1*v1 | p0*v0 | */
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" add $4, %0 \n\t"
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MOD_ADD ($2, %5)
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"4: \n\t"
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" sar $1, %2 \n\t" /* prepare for processing 4 samples at a time */
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" test $1, %2 \n\t"
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" je 6f \n\t"
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/* FIXME, we can do aligned access of the volume values if we can guarantee
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* that the array is 16 bytes aligned, we probably have to do the odd values
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* after this then. */
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"5: \n\t" /* do samples in groups of 4 */
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" movdqu (%q1, %3, 4), %%xmm0 \n\t" /* | v3h | v3l .. v0h | v0l | */
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" movq (%0), %%xmm1 \n\t" /* .. | p3 .. p0 | */
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VOLUME_32x16 (%%xmm1, %%xmm0)
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" movq %%xmm0, (%0) \n\t" /* .. | p3*v3 .. p0*v0 | */
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" add $8, %0 \n\t"
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MOD_ADD ($4, %5)
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"6: \n\t"
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" sar $1, %2 \n\t" /* prepare for processing 8 samples at a time */
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" cmp $0, %2 \n\t"
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" je 8f \n\t"
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"7: \n\t" /* do samples in groups of 8 */
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" movdqu (%q1, %3, 4), %%xmm0 \n\t" /* | v3h | v3l .. v0h | v0l | */
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" movdqu 16(%q1, %3, 4), %%xmm2 \n\t" /* | v7h | v7l .. v4h | v4l | */
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" movq (%0), %%xmm1 \n\t" /* .. | p3 .. p0 | */
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" movq 8(%0), %%xmm3 \n\t" /* .. | p7 .. p4 | */
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VOLUME_32x16 (%%xmm1, %%xmm0)
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VOLUME_32x16 (%%xmm3, %%xmm2)
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" movq %%xmm0, (%0) \n\t" /* .. | p3*v3 .. p0*v0 | */
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" movq %%xmm2, 8(%0) \n\t" /* .. | p7*v7 .. p4*v4 | */
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" add $16, %0 \n\t"
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MOD_ADD ($8, %5)
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" dec %2 \n\t"
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" jne 7b \n\t"
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"8: \n\t"
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: "+r" (samples), "+r" (volumes), "+r" (length), "=D" (channel), "=&r" (temp)
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#if defined (__i386__)
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: "m" (channels)
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#else
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: "r" ((pa_reg_x86)channels)
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#endif
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: "cc"
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);
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}
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static void pa_volume_s16re_sse2(int16_t *samples, const int32_t *volumes, unsigned channels, unsigned length) {
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pa_reg_x86 channel, temp;
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/* Channels must be at least 8 and always a multiple of the original number.
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* This is also the max amount we overread the volume array, which should
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* have enough padding. */
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if (channels < 8)
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channels = channel_overread_table[channels];
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__asm__ __volatile__ (
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" xor %3, %3 \n\t"
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" sar $1, %2 \n\t" /* length /= sizeof (int16_t) */
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" test $1, %2 \n\t" /* check for odd samples */
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" je 2f \n\t"
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" movd (%q1, %3, 4), %%xmm0 \n\t" /* | v0h | v0l | */
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" movw (%0), %w4 \n\t" /* .. | p0 | */
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" rorw $8, %w4 \n\t"
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" movd %4, %%xmm1 \n\t"
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VOLUME_32x16 (%%xmm1, %%xmm0)
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" movd %%xmm0, %4 \n\t" /* .. | p0*v0 | */
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" rorw $8, %w4 \n\t"
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" movw %w4, (%0) \n\t"
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" add $2, %0 \n\t"
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MOD_ADD ($1, %5)
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"2: \n\t"
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" sar $1, %2 \n\t" /* prepare for processing 2 samples at a time */
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" test $1, %2 \n\t"
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" je 4f \n\t"
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"3: \n\t" /* do samples in groups of 2 */
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" movq (%q1, %3, 4), %%xmm0 \n\t" /* | v1h | v1l | v0h | v0l | */
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" movd (%0), %%xmm1 \n\t" /* .. | p1 | p0 | */
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SWAP_16 (%%xmm1)
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VOLUME_32x16 (%%xmm1, %%xmm0)
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SWAP_16 (%%xmm0)
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" movd %%xmm0, (%0) \n\t" /* .. | p1*v1 | p0*v0 | */
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" add $4, %0 \n\t"
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MOD_ADD ($2, %5)
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"4: \n\t"
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" sar $1, %2 \n\t" /* prepare for processing 4 samples at a time */
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" test $1, %2 \n\t"
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" je 6f \n\t"
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/* FIXME, we can do aligned access of the volume values if we can guarantee
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* that the array is 16 bytes aligned, we probably have to do the odd values
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* after this then. */
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"5: \n\t" /* do samples in groups of 4 */
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" movdqu (%q1, %3, 4), %%xmm0 \n\t" /* | v3h | v3l .. v0h | v0l | */
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" movq (%0), %%xmm1 \n\t" /* .. | p3 .. p0 | */
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SWAP_16 (%%xmm1)
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VOLUME_32x16 (%%xmm1, %%xmm0)
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SWAP_16 (%%xmm0)
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" movq %%xmm0, (%0) \n\t" /* .. | p3*v3 .. p0*v0 | */
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" add $8, %0 \n\t"
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MOD_ADD ($4, %5)
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"6: \n\t"
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" sar $1, %2 \n\t" /* prepare for processing 8 samples at a time */
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" cmp $0, %2 \n\t"
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" je 8f \n\t"
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"7: \n\t" /* do samples in groups of 8 */
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" movdqu (%q1, %3, 4), %%xmm0 \n\t" /* | v3h | v3l .. v0h | v0l | */
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" movdqu 16(%q1, %3, 4), %%xmm2 \n\t" /* | v7h | v7l .. v4h | v4l | */
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" movq (%0), %%xmm1 \n\t" /* .. | p3 .. p0 | */
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" movq 8(%0), %%xmm3 \n\t" /* .. | p7 .. p4 | */
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SWAP_16_2 (%%xmm1, %%xmm3)
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VOLUME_32x16 (%%xmm1, %%xmm0)
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VOLUME_32x16 (%%xmm3, %%xmm2)
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SWAP_16_2 (%%xmm0, %%xmm2)
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" movq %%xmm0, (%0) \n\t" /* .. | p3*v3 .. p0*v0 | */
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" movq %%xmm2, 8(%0) \n\t" /* .. | p7*v7 .. p4*v4 | */
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" add $16, %0 \n\t"
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MOD_ADD ($8, %5)
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" dec %2 \n\t"
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" jne 7b \n\t"
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"8: \n\t"
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: "+r" (samples), "+r" (volumes), "+r" (length), "=D" (channel), "=&r" (temp)
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#if defined (__i386__)
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: "m" (channels)
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#else
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: "r" ((pa_reg_x86)channels)
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#endif
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: "cc"
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);
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}
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#endif /* defined (__i386__) || defined (__amd64__) */
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void pa_volume_func_init_sse(pa_cpu_x86_flag_t flags) {
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#if defined (__i386__) || defined (__amd64__)
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if (flags & PA_CPU_X86_SSE2) {
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pa_log_info("Initialising SSE2 optimized volume functions.");
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pa_set_volume_func(PA_SAMPLE_S16NE, (pa_do_volume_func_t) pa_volume_s16ne_sse2);
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pa_set_volume_func(PA_SAMPLE_S16RE, (pa_do_volume_func_t) pa_volume_s16re_sse2);
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}
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#endif /* defined (__i386__) || defined (__amd64__) */
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}
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