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avcodec/mips: Improve hevc uni-w copy mc msa functions

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Load the specific destination bytes instead of MSA load and pack.
Pack the data to half word before clipping.
Use immediate unsigned saturation for clip to max saving one vector register.

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>
This commit is contained in:
Kaustubh Raste
2017-09-21 13:45:34 +05:30
committed by Michael Niedermayer
parent d8ef5a47bb
commit 7f8417f226
2 changed files with 414 additions and 173 deletions
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30
libavutil/mips/generic_macros_msa.h
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@@ -204,6 +204,12 @@
out3 = LW((psrc) + 3 * stride); \
}
#define LW2(psrc, stride, out0, out1) \
{ \
out0 = LW((psrc)); \
out1 = LW((psrc) + stride); \
}
/* Description : Load double words with stride
Arguments : Inputs - psrc (source pointer to load from)
- stride
@@ -1047,6 +1053,25 @@
CLIP_SH2_0_255(in2, in3); \
}
#define CLIP_SH_0_255_MAX_SATU(in) \
( { \
v8i16 out_m; \
\
out_m = __msa_maxi_s_h((v8i16) in, 0); \
out_m = (v8i16) __msa_sat_u_h((v8u16) out_m, 7); \
out_m; \
} )
#define CLIP_SH2_0_255_MAX_SATU(in0, in1) \
{ \
in0 = CLIP_SH_0_255_MAX_SATU(in0); \
in1 = CLIP_SH_0_255_MAX_SATU(in1); \
}
#define CLIP_SH4_0_255_MAX_SATU(in0, in1, in2, in3) \
{ \
CLIP_SH2_0_255_MAX_SATU(in0, in1); \
CLIP_SH2_0_255_MAX_SATU(in2, in3); \
}
/* Description : Clips all signed word elements of input vector
between 0 & 255
Arguments : Inputs - in (input vector)
@@ -1965,6 +1990,11 @@
result is in place written to 'in0'
Similar for other pairs
*/
#define SLLI_2V(in0, in1, shift) \
{ \
in0 = in0 << shift; \
in1 = in1 << shift; \
}
#define SLLI_4V(in0, in1, in2, in3, shift) \
{ \
in0 = in0 << shift; \