diff options
| author | Kaustubh Raste <kaustubh.raste@imgtec.com> | 2017-07-12 17:32:32 +0530 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2017-07-14 02:30:37 +0200 |
| commit | df806605f7b72584ee99497c41514585574b53b8 (patch) | |
| tree | f8e0713eb62263d56d1efb04116525035a40548f /libavcodec | |
| parent | 5688fd77b57f1dd454990dc6fe48c6a3a1729eca (diff) | |
| download | ffmpeg-df806605f7b72584ee99497c41514585574b53b8.tar.gz | |
avcodec: Add prefetch for mips
Signed-off-by: Kaustubh Raste <kaustubh.raste@imgtec.com>
Reviewed-by: Manojkumar Bhosale <Manojkumar.Bhosale@imgtec.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavcodec')
| -rw-r--r-- | libavcodec/mips/Makefile | 1 | ||||
| -rw-r--r-- | libavcodec/mips/videodsp_init.c | 51 | ||||
| -rw-r--r-- | libavcodec/videodsp.c | 2 | ||||
| -rw-r--r-- | libavcodec/videodsp.h | 1 |
4 files changed, 55 insertions, 0 deletions
diff --git a/libavcodec/mips/Makefile b/libavcodec/mips/Makefile index 797df09d62..1f659a0037 100644 --- a/libavcodec/mips/Makefile +++ b/libavcodec/mips/Makefile @@ -38,6 +38,7 @@ OBJS-$(CONFIG_ME_CMP) += mips/me_cmp_init_mips.o OBJS-$(CONFIG_MPEG4_DECODER) += mips/xvididct_init_mips.o OBJS-$(CONFIG_VC1DSP) += mips/vc1dsp_init_mips.o OBJS-$(CONFIG_WMV2DSP) += mips/wmv2dsp_init_mips.o +OBJS-$(CONFIG_VIDEODSP) += mips/videodsp_init.o MSA-OBJS-$(CONFIG_HEVC_DECODER) += mips/hevcdsp_msa.o \ mips/hevc_mc_uni_msa.o \ mips/hevc_mc_uniw_msa.o \ diff --git a/libavcodec/mips/videodsp_init.c b/libavcodec/mips/videodsp_init.c new file mode 100644 index 0000000000..817040420b --- /dev/null +++ b/libavcodec/mips/videodsp_init.c @@ -0,0 +1,51 @@ +/* + * Copyright (c) 2017 Kaustubh Raste (kaustubh.raste@imgtec.com) + * + * 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 + */ + +#include "config.h" +#include "libavutil/attributes.h" +#include "libavutil/mips/asmdefs.h" +#include "libavcodec/videodsp.h" + +#if HAVE_MSA +static void prefetch_mips(uint8_t *mem, ptrdiff_t stride, int h) +{ + register const uint8_t *p = mem; + + __asm__ volatile ( + "1: \n\t" + "pref 4, 0(%[p]) \n\t" + "pref 4, 32(%[p]) \n\t" + PTR_ADDIU" %[h], %[h], -1 \n\t" + PTR_ADDU " %[p], %[p], %[stride] \n\t" + + "bnez %[h], 1b \n\t" + + : [p] "+r" (p), [h] "+r" (h) + : [stride] "r" (stride) + ); +} +#endif // #if HAVE_MSA + +av_cold void ff_videodsp_init_mips(VideoDSPContext *ctx, int bpc) +{ +#if HAVE_MSA + ctx->prefetch = prefetch_mips; +#endif // #if HAVE_MSA +} diff --git a/libavcodec/videodsp.c b/libavcodec/videodsp.c index ba618a7bbc..ce9e9eb143 100644 --- a/libavcodec/videodsp.c +++ b/libavcodec/videodsp.c @@ -52,4 +52,6 @@ av_cold void ff_videodsp_init(VideoDSPContext *ctx, int bpc) ff_videodsp_init_ppc(ctx, bpc); if (ARCH_X86) ff_videodsp_init_x86(ctx, bpc); + if (ARCH_MIPS) + ff_videodsp_init_mips(ctx, bpc); } diff --git a/libavcodec/videodsp.h b/libavcodec/videodsp.h index fc01a31dca..c0545f22b0 100644 --- a/libavcodec/videodsp.h +++ b/libavcodec/videodsp.h @@ -83,5 +83,6 @@ void ff_videodsp_init_aarch64(VideoDSPContext *ctx, int bpc); void ff_videodsp_init_arm(VideoDSPContext *ctx, int bpc); void ff_videodsp_init_ppc(VideoDSPContext *ctx, int bpc); void ff_videodsp_init_x86(VideoDSPContext *ctx, int bpc); +void ff_videodsp_init_mips(VideoDSPContext *ctx, int bpc); #endif /* AVCODEC_VIDEODSP_H */ |