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authorJames Almer <jamrial@gmail.com>2014-06-23 15:51:53 -0300
committerMichael Niedermayer <michaelni@gmx.at>2014-06-26 17:58:57 +0200
commit057d2704e78b52fec357b4fc646c9de37a085413 (patch)
tree060823a1e5b0c8cbad9a12ed34250ce35da4e6b0 /libavcodec/x86/videodsp.asm
parente18b48c6fdfdc91fe56b1d1a1312b6d486d9fe43 (diff)
downloadffmpeg-057d2704e78b52fec357b4fc646c9de37a085413.tar.gz
x86/videodsp: add emulated_edge_mc_mmxext
This also changes hfix8_mmx and above to use mmx regs instead of gprs, and makes emulated_edge_mc_sse and emulated_edge_mc_sse2 use mmxext hfix and hvar functions instead of mmx where possible. This is mostly in preparation for an ssse3 version. Signed-off-by: James Almer <jamrial@gmail.com> code is about 1 cpu cycle faster approximately Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavcodec/x86/videodsp.asm')
-rw-r--r--libavcodec/x86/videodsp.asm59
1 files changed, 35 insertions, 24 deletions
diff --git a/libavcodec/x86/videodsp.asm b/libavcodec/x86/videodsp.asm
index 1ac02574d6..ad15af9a27 100644
--- a/libavcodec/x86/videodsp.asm
+++ b/libavcodec/x86/videodsp.asm
@@ -92,21 +92,13 @@ INIT_XMM sse
vvar_fn
%macro hvar_fn 0
-cglobal emu_edge_hvar, 5, 6, 1, dst, dst_stride, start_x, n_words, h, w
+cglobal emu_edge_hvar, 5, 6, 2, dst, dst_stride, start_x, n_words, h, w
lea dstq, [dstq+n_wordsq*2]
neg n_wordsq
lea start_xq, [start_xq+n_wordsq*2]
.y_loop: ; do {
- ; FIXME also write a ssse3 version using pshufb
- movzx wd, byte [dstq+start_xq] ; w = read(1)
- imul wd, 0x01010101 ; w *= 0x01010101
- movd m0, wd
mov wq, n_wordsq ; initialize w
-%if cpuflag(sse2)
- pshufd m0, m0, q0000 ; splat
-%else ; mmx
- punpckldq m0, m0 ; splat
-%endif ; mmx/sse
+ SPLATB_LOAD m0, dstq+start_xq, m1 ; read(1); splat
.x_loop: ; do {
movu [dstq+wq*2], m0 ; write($reg, $mmsize)
add wq, mmsize/2 ; w -= $mmsize/2
@@ -122,6 +114,8 @@ cglobal emu_edge_hvar, 5, 6, 1, dst, dst_stride, start_x, n_words, h, w
%if ARCH_X86_32
INIT_MMX mmx
hvar_fn
+INIT_MMX mmxext
+hvar_fn
%endif
INIT_XMM sse2
@@ -344,16 +338,12 @@ VERTICAL_EXTEND 16, 22
; obviously not the same on both sides.
%macro READ_V_PIXEL 2
- movzx vald, byte %2
+%if notcpuflag(mmxext) && %1 < 8
+ movzx vald, byte [%2]
imul vald, 0x01010101
-%if %1 >= 8
- movd m0, vald
-%if mmsize == 16
- pshufd m0, m0, q0000
%else
- punpckldq m0, m0
-%endif ; mmsize == 16
-%endif ; %1 > 16
+ SPLATB_LOAD m0, %2, m1
+%endif ; %1 < 8
%endmacro ; READ_V_PIXEL
%macro WRITE_V_PIXEL 2
@@ -388,26 +378,42 @@ VERTICAL_EXTEND 16, 22
%endif
%endif ; %1-%%off >= 4
+%if %1-%%off == 2
+ movd [%2+%%off-2], m0
+%endif ; (%1-%%off)/2
+
%else ; %1 < 8
+%if cpuflag(mmxext)
+ movd [%2+%%off], m0
+%if %1 == 6
+ movd [%2+%%off+2], m0
+%endif ; (%1-%%off)/2
+
+%else ; notcpuflag(mmxext)
+
%rep %1/4
mov [%2+%%off], vald
%assign %%off %%off+4
%endrep ; %1/4
-%endif ; %1 >=/< 8
-
%if %1-%%off == 2
mov [%2+%%off], valw
%endif ; (%1-%%off)/2
+%endif ; cpuflag
+%endif ; %1 >=/< 8
%endmacro ; WRITE_V_PIXEL
%macro H_EXTEND 2
%assign %%n %1
%rep 1+(%2-%1)/2
-cglobal emu_edge_hfix %+ %%n, 4, 5, 1, dst, dst_stride, start_x, bh, val
+%if %%n < 8 && notcpuflag(mmxext)
+cglobal emu_edge_hfix %+ %%n, 4, 5, 2, dst, dst_stride, start_x, bh, val
+%else
+cglobal emu_edge_hfix %+ %%n, 4, 4, 2, dst, dst_stride, start_x, bh
+%endif
.loop_y: ; do {
- READ_V_PIXEL %%n, [dstq+start_xq] ; $variable_regs = read($n)
+ READ_V_PIXEL %%n, dstq+start_xq ; $variable_regs = read($n)
WRITE_V_PIXEL %%n, dstq ; write($variable_regs, $n)
add dstq, dst_strideq ; dst += dst_stride
dec bhq ; } while (--bh)
@@ -418,11 +424,16 @@ cglobal emu_edge_hfix %+ %%n, 4, 5, 1, dst, dst_stride, start_x, bh, val
%endmacro ; H_EXTEND
INIT_MMX mmx
-H_EXTEND 2, 14
+H_EXTEND 2, 2
%if ARCH_X86_32
-H_EXTEND 16, 22
+H_EXTEND 4, 22
%endif
+INIT_MMX mmxext
+H_EXTEND 4, 14
+%if ARCH_X86_32
+H_EXTEND 16, 22
+%endif
INIT_XMM sse2
H_EXTEND 16, 22