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vp9: add itxfm_add eob shortcuts to 10/12bpp functions. 

These aren't quite as helpful as the ones in 8bpp, since over there,
we can use pmulhrsw, but here the coefficients have too many bits to
be able to take advantage of pmulhrsw. However, we can still skip
cols for which all coefs are 0, and instead just zero the input data
for the row itx. This helps a few % on overall decoding speed.
tags/n3.0
Ronald S. Bultje 9 years ago
parent
488fadebbc
commit
eb4b5ff738
2 changed files with 201 additions and 34 deletions
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  1. +200
    -33
      libavcodec/x86/vp9itxfm_16bpp.asm
  2. +1
    -1
      tests/checkasm/vp9dsp.c

+ 200
- 33
libavcodec/x86/vp9itxfm_16bpp.asm View File

@@ -97,6 +97,40 @@ pw_m3196_m16069: times 4 dw -3196, -16069
pw_m13623_m9102: times 4 dw -13623, -9102
pw_m6270_m15137: times 4 dw -6270, -15137

default_8x8:
times 12 db 1
times 52 db 2
row_8x8:
times 18 db 1
times 46 db 2
col_8x8:
times 6 db 1
times 58 db 2
default_16x16:
times 10 db 1
times 28 db 2
times 51 db 3
times 167 db 4
row_16x16:
times 21 db 1
times 45 db 2
times 60 db 3
times 130 db 4
col_16x16:
times 5 db 1
times 12 db 2
times 25 db 3
times 214 db 4
default_32x32:
times 9 db 1
times 25 db 2
times 36 db 3
times 65 db 4
times 105 db 5
times 96 db 6
times 112 db 7
times 576 db 8

SECTION .text

%macro VP9_STORE_2X 6-7 dstq ; reg1, reg2, tmp1, tmp2, min, max, dst
@@ -636,18 +670,21 @@ cglobal vp9_idct_idct_8x8_add_10, 4, 6 + ARCH_X86_64, 10, \
jg .loop_dc
RET

; FIXME a sub-idct for the top-left 4x4 coefficients would save 1 loop
; iteration in the first idct (2->1) and thus probably a lot of time.
; I haven't implemented that yet, though

.idctfull:
mova [rsp+16*mmsize], m0
DEFINE_ARGS dst, stride, block, cnt, ptr, stride3, dstbak
DEFINE_ARGS dst, stride, block, cnt, ptr, skip, dstbak
%if ARCH_X86_64
mov dstbakq, dstq
movsxd cntq, cntd
%endif
lea stride3q, [strideq*3]
mov cntd, 2
%ifdef PIC
lea ptrq, [default_8x8]
movzx cntd, byte [ptrq+cntq-1]
%else
movzx cntd, byte [default_8x8+cntq-1]
%endif
mov skipd, 2
sub skipd, cntd
mov ptrq, rsp
.loop_1:
IDCT8_1D blockq
@@ -668,6 +705,24 @@ cglobal vp9_idct_idct_8x8_add_10, 4, 6 + ARCH_X86_64, 10, \
dec cntd
jg .loop_1

; zero-pad the remainder (skipped cols)
test skipd, skipd
jz .end
add skipd, skipd
lea blockq, [blockq+skipq*(mmsize/2)]
pxor m0, m0
.loop_z:
mova [ptrq+mmsize*0], m0
mova [ptrq+mmsize*1], m0
mova [ptrq+mmsize*2], m0
mova [ptrq+mmsize*3], m0
add ptrq, 4 * mmsize
dec skipd
jg .loop_z
.end:

DEFINE_ARGS dst, stride, block, cnt, ptr, stride3, dstbak
lea stride3q, [strideq*3]
mov cntd, 2
mov ptrq, rsp
.loop_2:
@@ -854,20 +909,27 @@ cglobal vp9_idct_idct_8x8_add_12, 4, 6 + ARCH_X86_64, 10, \
SWAP 2, 7, 6
%endmacro

%macro IADST8_FN 4
cglobal vp9_%1_%3_8x8_add_10, 3, 6 + ARCH_X86_64, 13, \
17 * mmsize + ARCH_X86_32 * 5 * mmsize, \
%macro IADST8_FN 5
cglobal vp9_%1_%3_8x8_add_10, 4, 6 + ARCH_X86_64, 16, \
16 * mmsize + ARCH_X86_32 * 6 * mmsize, \
dst, stride, block, eob
mova m0, [pw_1023]

.body:
mova [rsp+16*mmsize], m0
DEFINE_ARGS dst, stride, block, cnt, ptr, stride3, dstbak
DEFINE_ARGS dst, stride, block, cnt, ptr, skip, dstbak
%if ARCH_X86_64
mov dstbakq, dstq
movsxd cntq, cntd
%endif
lea stride3q, [strideq*3]
mov cntd, 2
%ifdef PIC
lea ptrq, [%5_8x8]
movzx cntd, byte [ptrq+cntq-1]
%else
movzx cntd, byte [%5_8x8+cntq-1]
%endif
mov skipd, 2
sub skipd, cntd
mov ptrq, rsp
.loop_1:
%2_1D blockq
@@ -888,6 +950,24 @@ cglobal vp9_%1_%3_8x8_add_10, 3, 6 + ARCH_X86_64, 13, \
dec cntd
jg .loop_1

; zero-pad the remainder (skipped cols)
test skipd, skipd
jz .end
add skipd, skipd
lea blockq, [blockq+skipq*(mmsize/2)]
pxor m0, m0
.loop_z:
mova [ptrq+mmsize*0], m0
mova [ptrq+mmsize*1], m0
mova [ptrq+mmsize*2], m0
mova [ptrq+mmsize*3], m0
add ptrq, 4 * mmsize
dec skipd
jg .loop_z
.end:

DEFINE_ARGS dst, stride, block, cnt, ptr, stride3, dstbak
lea stride3q, [strideq*3]
mov cntd, 2
mov ptrq, rsp
.loop_2:
@@ -913,17 +993,17 @@ cglobal vp9_%1_%3_8x8_add_10, 3, 6 + ARCH_X86_64, 13, \
ZERO_BLOCK blockq-2*mmsize, 32, 8, m6
RET

cglobal vp9_%1_%3_8x8_add_12, 3, 6 + ARCH_X86_64, 13, \
17 * mmsize + ARCH_X86_32 * 5 * mmsize, \
cglobal vp9_%1_%3_8x8_add_12, 4, 6 + ARCH_X86_64, 16, \
16 * mmsize + ARCH_X86_32 * 6 * mmsize, \
dst, stride, block, eob
mova m0, [pw_4095]
jmp mangle(private_prefix %+ _ %+ vp9_%1_%3_8x8_add_10 %+ SUFFIX).body
%endmacro

INIT_XMM sse2
IADST8_FN idct, IDCT8, iadst, IADST8
IADST8_FN iadst, IADST8, idct, IDCT8
IADST8_FN iadst, IADST8, iadst, IADST8
IADST8_FN idct, IDCT8, iadst, IADST8, row
IADST8_FN iadst, IADST8, idct, IDCT8, col
IADST8_FN iadst, IADST8, iadst, IADST8, default

%macro IDCT16_1D 1-4 4 * mmsize, 65, 67 ; src, src_stride, stack_offset, mm32bit_stack_offset
IDCT8_1D %1, %2 * 2, %4 ; m0-3=t0-3a, m4-5/m8|r67/m7=t4-7
@@ -1040,12 +1120,19 @@ cglobal vp9_idct_idct_16x16_add_10, 4, 6 + ARCH_X86_64, 16, \

.idctfull:
mova [rsp+64*mmsize], m0
DEFINE_ARGS dst, stride, block, cnt, ptr, stride3, dstbak
DEFINE_ARGS dst, stride, block, cnt, ptr, skip, dstbak
%if ARCH_X86_64
mov dstbakq, dstq
movsxd cntq, cntd
%endif
lea stride3q, [strideq*3]
mov cntd, 4
%ifdef PIC
lea ptrq, [default_16x16]
movzx cntd, byte [ptrq+cntq-1]
%else
movzx cntd, byte [default_16x16+cntq-1]
%endif
mov skipd, 4
sub skipd, cntd
mov ptrq, rsp
.loop_1:
IDCT16_1D blockq
@@ -1084,6 +1171,28 @@ cglobal vp9_idct_idct_16x16_add_10, 4, 6 + ARCH_X86_64, 16, \
dec cntd
jg .loop_1

; zero-pad the remainder (skipped cols)
test skipd, skipd
jz .end
add skipd, skipd
lea blockq, [blockq+skipq*(mmsize/2)]
pxor m0, m0
.loop_z:
mova [ptrq+mmsize*0], m0
mova [ptrq+mmsize*1], m0
mova [ptrq+mmsize*2], m0
mova [ptrq+mmsize*3], m0
mova [ptrq+mmsize*4], m0
mova [ptrq+mmsize*5], m0
mova [ptrq+mmsize*6], m0
mova [ptrq+mmsize*7], m0
add ptrq, 8 * mmsize
dec skipd
jg .loop_z
.end:

DEFINE_ARGS dst, stride, block, cnt, ptr, stride3, dstbak
lea stride3q, [strideq*3]
mov cntd, 4
mov ptrq, rsp
.loop_2:
@@ -1318,20 +1427,27 @@ cglobal vp9_idct_idct_16x16_add_12, 4, 6 + ARCH_X86_64, 16, \
SWAP 2, 5, 4, 6, 7, 3
%endmacro

%macro IADST16_FN 6
cglobal vp9_%1_%4_16x16_add_10, 3, 6 + ARCH_X86_64, 16, \
%macro IADST16_FN 7
cglobal vp9_%1_%4_16x16_add_10, 4, 6 + ARCH_X86_64, 16, \
70 * mmsize + ARCH_X86_32 * 8 * mmsize, \
dst, stride, block, eob
mova m0, [pw_1023]

.body:
mova [rsp+64*mmsize], m0
DEFINE_ARGS dst, stride, block, cnt, ptr, stride3, dstbak
DEFINE_ARGS dst, stride, block, cnt, ptr, skip, dstbak
%if ARCH_X86_64
mov dstbakq, dstq
movsxd cntq, cntd
%endif
lea stride3q, [strideq*3]
mov cntd, 4
%ifdef PIC
lea ptrq, [%7_16x16]
movzx cntd, byte [ptrq+cntq-1]
%else
movzx cntd, byte [%7_16x16+cntq-1]
%endif
mov skipd, 4
sub skipd, cntd
mov ptrq, rsp
.loop_1:
%2_1D blockq
@@ -1370,6 +1486,28 @@ cglobal vp9_%1_%4_16x16_add_10, 3, 6 + ARCH_X86_64, 16, \
dec cntd
jg .loop_1

; zero-pad the remainder (skipped cols)
test skipd, skipd
jz .end
add skipd, skipd
lea blockq, [blockq+skipq*(mmsize/2)]
pxor m0, m0
.loop_z:
mova [ptrq+mmsize*0], m0
mova [ptrq+mmsize*1], m0
mova [ptrq+mmsize*2], m0
mova [ptrq+mmsize*3], m0
mova [ptrq+mmsize*4], m0
mova [ptrq+mmsize*5], m0
mova [ptrq+mmsize*6], m0
mova [ptrq+mmsize*7], m0
add ptrq, 8 * mmsize
dec skipd
jg .loop_z
.end:

DEFINE_ARGS dst, stride, block, cnt, ptr, stride3, dstbak
lea stride3q, [strideq*3]
mov cntd, 4
mov ptrq, rsp
.loop_2:
@@ -1419,7 +1557,7 @@ cglobal vp9_%1_%4_16x16_add_10, 3, 6 + ARCH_X86_64, 16, \
ZERO_BLOCK blockq-4*mmsize, 64, 16, m7
RET

cglobal vp9_%1_%4_16x16_add_12, 3, 6 + ARCH_X86_64, 16, \
cglobal vp9_%1_%4_16x16_add_12, 4, 6 + ARCH_X86_64, 16, \
70 * mmsize + ARCH_X86_32 * 8 * mmsize, \
dst, stride, block, eob
mova m0, [pw_4095]
@@ -1427,9 +1565,9 @@ cglobal vp9_%1_%4_16x16_add_12, 3, 6 + ARCH_X86_64, 16, \
%endmacro

INIT_XMM sse2
IADST16_FN idct, IDCT16, 67, iadst, IADST16, 70
IADST16_FN iadst, IADST16, 70, idct, IDCT16, 67
IADST16_FN iadst, IADST16, 70, iadst, IADST16, 70
IADST16_FN idct, IDCT16, 67, iadst, IADST16, 70, row
IADST16_FN iadst, IADST16, 70, idct, IDCT16, 67, col
IADST16_FN iadst, IADST16, 70, iadst, IADST16, 70, default

%macro IDCT32_1D 2-3 8 * mmsize; pass[1/2], src, src_stride
IDCT16_1D %2, 2 * %3, 272, 257
@@ -1808,12 +1946,19 @@ cglobal vp9_idct_idct_32x32_add_10, 4, 6 + ARCH_X86_64, 16, \

.idctfull:
mova [rsp+256*mmsize], m0
DEFINE_ARGS dst, stride, block, cnt, ptr, stride3, dstbak
DEFINE_ARGS dst, stride, block, cnt, ptr, skip, dstbak
%if ARCH_X86_64
mov dstbakq, dstq
movsxd cntq, cntd
%endif
lea stride3q, [strideq*3]
mov cntd, 8
%ifdef PIC
lea ptrq, [default_32x32]
movzx cntd, byte [ptrq+cntq-1]
%else
movzx cntd, byte [default_32x32+cntq-1]
%endif
mov skipd, 8
sub skipd, cntd
mov ptrq, rsp
.loop_1:
IDCT32_1D 1, blockq
@@ -1823,6 +1968,28 @@ cglobal vp9_idct_idct_32x32_add_10, 4, 6 + ARCH_X86_64, 16, \
dec cntd
jg .loop_1

; zero-pad the remainder (skipped cols)
test skipd, skipd
jz .end
shl skipd, 2
lea blockq, [blockq+skipq*(mmsize/4)]
pxor m0, m0
.loop_z:
mova [ptrq+mmsize*0], m0
mova [ptrq+mmsize*1], m0
mova [ptrq+mmsize*2], m0
mova [ptrq+mmsize*3], m0
mova [ptrq+mmsize*4], m0
mova [ptrq+mmsize*5], m0
mova [ptrq+mmsize*6], m0
mova [ptrq+mmsize*7], m0
add ptrq, 8 * mmsize
dec skipd
jg .loop_z
.end:

DEFINE_ARGS dst, stride, block, cnt, ptr, stride3, dstbak
lea stride3q, [strideq*3]
mov cntd, 8
mov ptrq, rsp
.loop_2:


+ 1
- 1
tests/checkasm/vp9dsp.c View File

@@ -337,7 +337,7 @@ static void check_itxfm(void)
randomize_buffers();
ftx(coef, tx, txtp, sz, bit_depth);

for (sub = (txtp == 0) ? 1 : sz; sub <= sz; sub <<= 1) {
for (sub = (txtp == 0) ? 1 : 2; sub <= sz; sub <<= 1) {
int eob;

if (sub < sz) {


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