Remove TEXTREL from 32bit encoder
This patch fixed the issue reported in "Issue 655: remove textrel's from 32-bit vp9 encoder". The set of vp9_subpel_variance functions that used x86inc.asm ABI didn't build correctly for 32bit PIC. The fix was carefully done under the situation that there was not enough registers. After the change, we got $ eu-findtextrel libvpx.so eu-findtextrel: no text relocations reported in 'libvpx.so' Change-Id: I1b176311dedaf48eaee0a1e777588043c97cea82
This commit is contained in:
Yunqing Wang
parent
dd45530ee6
commit
d7289658fb
@ -118,6 +118,14 @@ SECTION .text
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RET
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%endmacro
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%macro INC_SRC_BY_SRC_STRIDE 0
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%if ARCH_X86=1 && CONFIG_PIC=1
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add srcq, src_stridemp
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%else
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add srcq, src_strideq
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%endif
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%endmacro
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%macro SUBPEL_VARIANCE 1-2 0 ; W
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%if cpuflag(ssse3)
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%define bilin_filter_m bilin_filter_m_ssse3
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@ -129,41 +137,85 @@ SECTION .text
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; FIXME(rbultje) only bilinear filters use >8 registers, and ssse3 only uses
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; 11, not 13, if the registers are ordered correctly. May make a minor speed
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; difference on Win64
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%ifdef PIC
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%if %2 == 1 ; avg
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cglobal sub_pixel_avg_variance%1xh, 9, 10, 13, src, src_stride, \
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x_offset, y_offset, \
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dst, dst_stride, \
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sec, sec_stride, height, sse
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%define sec_str sec_strideq
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%ifdef PIC ; 64bit PIC
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%if %2 == 1 ; avg
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cglobal sub_pixel_avg_variance%1xh, 9, 10, 13, src, src_stride, \
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x_offset, y_offset, \
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dst, dst_stride, \
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sec, sec_stride, height, sse
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%define sec_str sec_strideq
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%else
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cglobal sub_pixel_variance%1xh, 7, 8, 13, src, src_stride, x_offset, \
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y_offset, dst, dst_stride, height, sse
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%endif
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%define h heightd
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%define bilin_filter sseq
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%else
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cglobal sub_pixel_variance%1xh, 7, 8, 13, src, src_stride, x_offset, y_offset, \
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dst, dst_stride, height, sse
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%endif
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%define h heightd
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%define bilin_filter sseq
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%else
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%if %2 == 1 ; avg
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cglobal sub_pixel_avg_variance%1xh, 7 + 2 * ARCH_X86_64, \
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7 + 2 * ARCH_X86_64, 13, src, src_stride, \
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x_offset, y_offset, \
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dst, dst_stride, \
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sec, sec_stride, \
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height, sse
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%if ARCH_X86_64
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%define h heightd
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%define sec_str sec_strideq
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%else
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%define h dword heightm
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%define sec_str sec_stridemp
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%endif
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%else
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cglobal sub_pixel_variance%1xh, 7, 7, 13, src, src_stride, x_offset, y_offset, \
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dst, dst_stride, height, sse
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%define h heightd
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%endif
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%define bilin_filter bilin_filter_m
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%if ARCH_X86=1 && CONFIG_PIC=1
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%if %2 == 1 ; avg
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cglobal sub_pixel_avg_variance%1xh, 7, 7, 13, src, src_stride, \
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x_offset, y_offset, \
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dst, dst_stride, \
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sec, sec_stride, \
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height, sse, g_bilin_filter, g_pw_8
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%define h dword heightm
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%define sec_str sec_stridemp
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;Store bilin_filter and pw_8 location in stack
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GET_GOT eax
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add esp, 4 ; restore esp
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lea ecx, [GLOBAL(bilin_filter_m)]
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mov g_bilin_filterm, ecx
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lea ecx, [GLOBAL(pw_8)]
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mov g_pw_8m, ecx
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LOAD_IF_USED 0, 1 ; load eax, ecx back
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%else
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cglobal sub_pixel_variance%1xh, 7, 7, 13, src, src_stride, x_offset, \
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y_offset, dst, dst_stride, height, sse, \
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g_bilin_filter, g_pw_8
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%define h heightd
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;Store bilin_filter and pw_8 location in stack
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GET_GOT eax
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add esp, 4 ; restore esp
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lea ecx, [GLOBAL(bilin_filter_m)]
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mov g_bilin_filterm, ecx
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lea ecx, [GLOBAL(pw_8)]
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mov g_pw_8m, ecx
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LOAD_IF_USED 0, 1 ; load eax, ecx back
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%endif
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%else
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%if %2 == 1 ; avg
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cglobal sub_pixel_avg_variance%1xh, 7 + 2 * ARCH_X86_64, \
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7 + 2 * ARCH_X86_64, 13, src, src_stride, \
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x_offset, y_offset, \
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dst, dst_stride, \
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sec, sec_stride, \
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height, sse
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%if ARCH_X86_64
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%define h heightd
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%define sec_str sec_strideq
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%else
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%define h dword heightm
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%define sec_str sec_stridemp
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%endif
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%else
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cglobal sub_pixel_variance%1xh, 7, 7, 13, src, src_stride, x_offset, \
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y_offset, dst, dst_stride, height, sse
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%define h heightd
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%endif
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%define bilin_filter bilin_filter_m
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%endif
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%endif
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ASSERT %1 <= 16 ; m6 overflows if w > 16
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pxor m6, m6 ; sum
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pxor m7, m7 ; sse
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@ -329,11 +381,22 @@ cglobal sub_pixel_variance%1xh, 7, 7, 13, src, src_stride, x_offset, y_offset, \
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%define filter_y_b m9
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%define filter_rnd m10
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%else ; x86-32 or mmx
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%if ARCH_X86=1 && CONFIG_PIC=1
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; x_offset == 0, reuse x_offset reg
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%define tempq x_offsetq
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add y_offsetq, g_bilin_filterm
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%define filter_y_a [y_offsetq]
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%define filter_y_b [y_offsetq+16]
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mov tempq, g_pw_8m
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%define filter_rnd [tempq]
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%else
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add y_offsetq, bilin_filter
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%define filter_y_a [y_offsetq]
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%define filter_y_b [y_offsetq+16]
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%define filter_rnd [pw_8]
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%endif
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%endif
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.x_zero_y_other_loop:
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%if %1 == 16
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movu m0, [srcq]
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@ -615,12 +678,23 @@ cglobal sub_pixel_variance%1xh, 7, 7, 13, src, src_stride, x_offset, y_offset, \
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%define filter_y_a m8
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%define filter_y_b m9
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%define filter_rnd m10
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%else ;x86_32
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%if ARCH_X86=1 && CONFIG_PIC=1
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; x_offset == 0.5. We can reuse x_offset reg
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%define tempq x_offsetq
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add y_offsetq, g_bilin_filterm
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%define filter_y_a [y_offsetq]
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%define filter_y_b [y_offsetq+16]
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mov tempq, g_pw_8m
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%define filter_rnd [tempq]
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%else
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add y_offsetq, bilin_filter
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%define filter_y_a [y_offsetq]
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%define filter_y_b [y_offsetq+16]
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%define filter_rnd [pw_8]
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%endif
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%endif
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%if %1 == 16
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movu m0, [srcq]
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movu m3, [srcq+1]
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@ -752,12 +826,23 @@ cglobal sub_pixel_variance%1xh, 7, 7, 13, src, src_stride, x_offset, y_offset, \
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%define filter_x_a m8
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%define filter_x_b m9
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%define filter_rnd m10
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%else ; x86-32
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%if ARCH_X86=1 && CONFIG_PIC=1
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;y_offset == 0. We can reuse y_offset reg.
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%define tempq y_offsetq
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add x_offsetq, g_bilin_filterm
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%define filter_x_a [x_offsetq]
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%define filter_x_b [x_offsetq+16]
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mov tempq, g_pw_8m
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%define filter_rnd [tempq]
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%else
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add x_offsetq, bilin_filter
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%define filter_x_a [x_offsetq]
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%define filter_x_b [x_offsetq+16]
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%define filter_rnd [pw_8]
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%endif
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%endif
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.x_other_y_zero_loop:
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%if %1 == 16
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movu m0, [srcq]
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@ -873,12 +958,23 @@ cglobal sub_pixel_variance%1xh, 7, 7, 13, src, src_stride, x_offset, y_offset, \
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%define filter_x_a m8
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%define filter_x_b m9
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%define filter_rnd m10
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%else ; x86-32
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%if ARCH_X86=1 && CONFIG_PIC=1
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; y_offset == 0.5. We can reuse y_offset reg.
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%define tempq y_offsetq
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add x_offsetq, g_bilin_filterm
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%define filter_x_a [x_offsetq]
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%define filter_x_b [x_offsetq+16]
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mov tempq, g_pw_8m
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%define filter_rnd [tempq]
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%else
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add x_offsetq, bilin_filter
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%define filter_x_a [x_offsetq]
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%define filter_x_b [x_offsetq+16]
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%define filter_rnd [pw_8]
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%endif
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%endif
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%if %1 == 16
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movu m0, [srcq]
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movu m1, [srcq+1]
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@ -1057,6 +1153,21 @@ cglobal sub_pixel_variance%1xh, 7, 7, 13, src, src_stride, x_offset, y_offset, \
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%define filter_y_a m10
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%define filter_y_b m11
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%define filter_rnd m12
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%else ; x86-32
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%if ARCH_X86=1 && CONFIG_PIC=1
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; In this case, there is NO unused register. Used src_stride register. Later,
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; src_stride has to be loaded from stack when it is needed.
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%define tempq src_strideq
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mov tempq, g_bilin_filterm
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add x_offsetq, tempq
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add y_offsetq, tempq
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%define filter_x_a [x_offsetq]
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%define filter_x_b [x_offsetq+16]
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%define filter_y_a [y_offsetq]
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%define filter_y_b [y_offsetq+16]
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mov tempq, g_pw_8m
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%define filter_rnd [tempq]
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%else
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add x_offsetq, bilin_filter
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add y_offsetq, bilin_filter
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@ -1066,6 +1177,8 @@ cglobal sub_pixel_variance%1xh, 7, 7, 13, src, src_stride, x_offset, y_offset, \
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%define filter_y_b [y_offsetq+16]
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%define filter_rnd [pw_8]
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%endif
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%endif
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; x_offset == bilin interpolation && y_offset == bilin interpolation
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%if %1 == 16
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movu m0, [srcq]
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@ -1093,7 +1206,9 @@ cglobal sub_pixel_variance%1xh, 7, 7, 13, src, src_stride, x_offset, y_offset, \
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%endif
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psraw m0, 4
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psraw m2, 4
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add srcq, src_strideq
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INC_SRC_BY_SRC_STRIDE
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packuswb m0, m2
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.x_other_y_other_loop:
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%if cpuflag(ssse3)
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@ -1163,7 +1278,7 @@ cglobal sub_pixel_variance%1xh, 7, 7, 13, src, src_stride, x_offset, y_offset, \
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SUM_SSE m0, m1, m2, m3, m6, m7
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mova m0, m4
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add srcq, src_strideq
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INC_SRC_BY_SRC_STRIDE
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add dstq, dst_strideq
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%else ; %1 < 16
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movh m0, [srcq]
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@ -1184,12 +1299,17 @@ cglobal sub_pixel_variance%1xh, 7, 7, 13, src, src_stride, x_offset, y_offset, \
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%if cpuflag(ssse3)
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packuswb m0, m0
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%endif
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add srcq, src_strideq
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INC_SRC_BY_SRC_STRIDE
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.x_other_y_other_loop:
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movh m2, [srcq]
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movh m1, [srcq+1]
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movh m4, [srcq+src_strideq]
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movh m3, [srcq+src_strideq+1]
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INC_SRC_BY_SRC_STRIDE
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movh m4, [srcq]
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movh m3, [srcq+1]
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%if cpuflag(ssse3)
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punpcklbw m2, m1
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punpcklbw m4, m3
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@ -1253,7 +1373,7 @@ cglobal sub_pixel_variance%1xh, 7, 7, 13, src, src_stride, x_offset, y_offset, \
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SUM_SSE m0, m1, m2, m3, m6, m7
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mova m0, m4
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lea srcq, [srcq+src_strideq*2]
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INC_SRC_BY_SRC_STRIDE
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lea dstq, [dstq+dst_strideq*2]
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%endif
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%if %2 == 1 ; avg
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