From: Måns Rullgård Date: Fri, 15 Jan 2010 02:58:24 +0000 (+0000) Subject: AAC: ARM/NEON asm for VMUL2/4 functions X-Git-Tag: v0.6~1932 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=798339fb46a2646bddc0121733a90afc3d860f29;p=platform%2Fupstream%2Flibav.git AAC: ARM/NEON asm for VMUL2/4 functions Originally committed as revision 21219 to svn://svn.ffmpeg.org/ffmpeg/trunk --- diff --git a/libavcodec/aac.c b/libavcodec/aac.c index b47b58e..393f2e6 100644 --- a/libavcodec/aac.c +++ b/libavcodec/aac.c @@ -93,6 +93,10 @@ #include #include +#if ARCH_ARM +# include "arm/aac.h" +#endif + union float754 { float f; uint32_t i; @@ -862,6 +866,7 @@ static void decode_mid_side_stereo(ChannelElement *cpe, GetBitContext *gb, } } +#ifndef VMUL2 static inline float *VMUL2(float *dst, const float *v, unsigned idx, const float *scale) { @@ -870,7 +875,9 @@ static inline float *VMUL2(float *dst, const float *v, unsigned idx, *dst++ = v[idx>>4 & 15] * s; return dst; } +#endif +#ifndef VMUL4 static inline float *VMUL4(float *dst, const float *v, unsigned idx, const float *scale) { @@ -881,7 +888,9 @@ static inline float *VMUL4(float *dst, const float *v, unsigned idx, *dst++ = v[idx>>6 & 3] * s; return dst; } +#endif +#ifndef VMUL2S static inline float *VMUL2S(float *dst, const float *v, unsigned idx, unsigned sign, const float *scale) { @@ -896,7 +905,9 @@ static inline float *VMUL2S(float *dst, const float *v, unsigned idx, return dst; } +#endif +#ifndef VMUL4S static inline float *VMUL4S(float *dst, const float *v, unsigned idx, unsigned sign, const float *scale) { @@ -921,6 +932,7 @@ static inline float *VMUL4S(float *dst, const float *v, unsigned idx, return dst; } +#endif /** * Decode spectral data; reference: table 4.50. diff --git a/libavcodec/arm/aac.h b/libavcodec/arm/aac.h new file mode 100644 index 0000000..2ccb8cf --- /dev/null +++ b/libavcodec/arm/aac.h @@ -0,0 +1,130 @@ +/* + * Copyright (c) 2010 Mans Rullgard + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg 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 + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#if HAVE_NEON && HAVE_INLINE_ASM + +#define VMUL2 VMUL2 +static inline float *VMUL2(float *dst, const float *v, unsigned idx, + const float *scale) +{ + unsigned v0, v1; + __asm__ volatile ("ubfx %0, %4, #0, #4 \n\t" + "ubfx %1, %4, #4, #4 \n\t" + "ldr %0, [%3, %0, lsl #2] \n\t" + "ldr %1, [%3, %1, lsl #2] \n\t" + "vld1.32 {d1[]}, [%5,:32] \n\t" + "vmov d0, %0, %1 \n\t" + "vmul.f32 d0, d0, d1 \n\t" + "vst1.32 {d0}, [%2,:64]! \n\t" + : "=&r"(v0), "=&r"(v1), "+r"(dst) + : "r"(v), "r"(idx), "r"(scale) + : "d0", "d1"); + return dst; +} + +#define VMUL4 VMUL4 +static inline float *VMUL4(float *dst, const float *v, unsigned idx, + const float *scale) +{ + unsigned v0, v1, v2, v3; + __asm__ volatile ("ubfx %0, %6, #0, #2 \n\t" + "ubfx %1, %6, #2, #2 \n\t" + "ldr %0, [%5, %0, lsl #2] \n\t" + "ubfx %2, %6, #4, #2 \n\t" + "ldr %1, [%5, %1, lsl #2] \n\t" + "ubfx %3, %6, #6, #2 \n\t" + "ldr %2, [%5, %2, lsl #2] \n\t" + "vmov d0, %0, %1 \n\t" + "ldr %3, [%5, %3, lsl #2] \n\t" + "vld1.32 {d2[],d3[]},[%7,:32] \n\t" + "vmov d1, %2, %3 \n\t" + "vmul.f32 q0, q0, q1 \n\t" + "vst1.32 {q0}, [%4,:128]! \n\t" + : "=&r"(v0), "=&r"(v1), "=&r"(v2), "=&r"(v3), "+r"(dst) + : "r"(v), "r"(idx), "r"(scale) + : "d0", "d1", "d2", "d3"); + return dst; +} + +#define VMUL2S VMUL2S +static inline float *VMUL2S(float *dst, const float *v, unsigned idx, + unsigned sign, const float *scale) +{ + unsigned v0, v1, v2, v3; + __asm__ volatile ("ubfx %0, %6, #0, #4 \n\t" + "ubfx %1, %6, #4, #4 \n\t" + "ldr %0, [%5, %0, lsl #2] \n\t" + "lsl %2, %8, #30 \n\t" + "ldr %1, [%5, %1, lsl #2] \n\t" + "lsl %3, %8, #31 \n\t" + "vmov d0, %0, %1 \n\t" + "bic %2, %2, #1<<30 \n\t" + "vld1.32 {d1[]}, [%7,:32] \n\t" + "vmov d2, %2, %3 \n\t" + "veor d0, d0, d2 \n\t" + "vmul.f32 d0, d0, d1 \n\t" + "vst1.32 {d0}, [%4,:64]! \n\t" + : "=&r"(v0), "=&r"(v1), "=&r"(v2), "=&r"(v3), "+r"(dst) + : "r"(v), "r"(idx), "r"(scale), "r"(sign) + : "d0", "d1", "d2"); + return dst; +} + +#define VMUL4S VMUL4S +static inline float *VMUL4S(float *dst, const float *v, unsigned idx, + unsigned sign, const float *scale) +{ + unsigned v0, v1, v2, v3, nz; + __asm__ volatile ("vld1.32 {d2[],d3[]},[%9,:32] \n\t" + "ubfx %0, %8, #0, #2 \n\t" + "ubfx %1, %8, #2, #2 \n\t" + "ldr %0, [%7, %0, lsl #2] \n\t" + "ubfx %2, %8, #4, #2 \n\t" + "ldr %1, [%7, %1, lsl #2] \n\t" + "ubfx %3, %8, #6, #2 \n\t" + "ldr %2, [%7, %2, lsl #2] \n\t" + "vmov d0, %0, %1 \n\t" + "ldr %3, [%7, %3, lsl #2] \n\t" + "lsr %6, %8, #12 \n\t" + "rbit %6, %6 \n\t" + "vmov d1, %2, %3 \n\t" + "lsls %6, %6, #1 \n\t" + "and %0, %5, #1<<31 \n\t" + "lslcs %5, %5, #1 \n\t" + "lsls %6, %6, #1 \n\t" + "and %1, %5, #1<<31 \n\t" + "lslcs %5, %5, #1 \n\t" + "lsls %6, %6, #1 \n\t" + "and %2, %5, #1<<31 \n\t" + "lslcs %5, %5, #1 \n\t" + "vmov d4, %0, %1 \n\t" + "and %3, %5, #1<<31 \n\t" + "vmov d5, %2, %3 \n\t" + "veor q0, q0, q2 \n\t" + "vmul.f32 q0, q0, q1 \n\t" + "vst1.32 {q0}, [%4,:128]! \n\t" + : "=&r"(v0), "=&r"(v1), "=&r"(v2), "=&r"(v3), "+r"(dst), + "+r"(sign), "=r"(nz) + : "r"(v), "r"(idx), "r"(scale) + : "d0", "d1", "d2", "d3", "d4", "d5"); + return dst; +} + +#endif /* HAVE_NEON && HAVE_INLINE_ASM */