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swscale/x86/swscale: Remove obsolete and harmful MMX(EXT) functions

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x64 always has MMX, MMXEXT, SSE and SSE2 and this means
that some functions for MMX, MMXEXT, SSE and 3dnow are always
overridden by other functions (unless one e.g. explicitly
disables SSE2). So given that the only systems that
benefit from these functions are truely ancient 32bit x86s
they are removed.

Moreover, some of the removed code was buggy/not bitexact
and lead to failures involving the f32le and f32be versions of
gray, gbrp and gbrap on x86-32 when SSE2 was not disabled.
See e.g.
https://fate.ffmpeg.org/report.cgi?time=20220609221253&slot=x86_32-debian-kfreebsd-gcc-4.4-cpuflags-mmx

Notice that yuv2yuvX_mmx is not removed, because it is used
by SSE3 and AVX2 as fallback in case of unaligned data and
also for tail processing. I don't know why yuv2yuvX_mmxext
isn't being used for this; an earlier version [1] of
554c2bc708 used it, but
the version that was eventually applied does not.

[1]: https://ffmpeg.org/pipermail/ffmpeg-devel/2020-November/272124.html

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
release/5.1
Andreas Rheinhardt 3 years ago
parent 2831837182
commit a05f22eaf3
5 changed files with 38 additions and 232 deletions
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  1. 82
      libswscale/x86/input.asm
  2. 30
      libswscale/x86/output.asm
  3. 45
      libswscale/x86/scale.asm
  4. 83
      libswscale/x86/swscale.c
  5. 30
      libswscale/x86/swscale_template.c

82
libswscale/x86/input.asm
Unescape View File

@ -133,23 +133,18 @@ SECTION .text
; %2 = rgb or bgr
%macro RGB24_TO_Y_FN 2-3
cglobal %2 %+ 24ToY, 6, 6, %1, dst, src, u1, u2, w, table
%if mmsize == 8
mova m5, [%2_Ycoeff_12x4]
mova m6, [%2_Ycoeff_3x56]
%define coeff1 m5
%define coeff2 m6
%elif ARCH_X86_64
%if ARCH_X86_64
mova m8, [%2_Ycoeff_12x4]
mova m9, [%2_Ycoeff_3x56]
%define coeff1 m8
%define coeff2 m9
%else ; x86-32 && mmsize == 16
%else ; x86-32
%define coeff1 [%2_Ycoeff_12x4]
%define coeff2 [%2_Ycoeff_3x56]
%endif ; x86-32/64 && mmsize == 8/16
%if (ARCH_X86_64 || mmsize == 8) && %0 == 3
%endif ; x86-32/64
%if ARCH_X86_64 && %0 == 3
jmp mangle(private_prefix %+ _ %+ %3 %+ 24ToY %+ SUFFIX).body
%else ; (ARCH_X86_64 && %0 == 3) || mmsize == 8
%else ; ARCH_X86_64 && %0 == 3
.body:
%if cpuflag(ssse3)
mova m7, [shuf_rgb_12x4]
@ -184,7 +179,6 @@ cglobal %2 %+ 24ToY, 6, 6, %1, dst, src, u1, u2, w, table
movd m1, [srcq+2] ; (byte) { R0, B1, G1, R1 }
movd m2, [srcq+6] ; (byte) { B2, G2, R2, B3 }
movd m3, [srcq+8] ; (byte) { R2, B3, G3, R3 }
%if mmsize == 16 ; i.e. sse2
punpckldq m0, m2 ; (byte) { B0, G0, R0, B1, B2, G2, R2, B3 }
punpckldq m1, m3 ; (byte) { R0, B1, G1, R1, R2, B3, G3, R3 }
movd m2, [srcq+12] ; (byte) { B4, G4, R4, B5 }
@ -193,7 +187,6 @@ cglobal %2 %+ 24ToY, 6, 6, %1, dst, src, u1, u2, w, table
movd m6, [srcq+20] ; (byte) { R6, B7, G7, R7 }
punpckldq m2, m5 ; (byte) { B4, G4, R4, B5, B6, G6, R6, B7 }
punpckldq m3, m6 ; (byte) { R4, B5, G5, R5, R6, B7, G7, R7 }
%endif ; mmsize == 16
punpcklbw m0, m7 ; (word) { B0, G0, R0, B1, B2, G2, R2, B3 }
punpcklbw m1, m7 ; (word) { R0, B1, G1, R1, R2, B3, G3, R3 }
punpcklbw m2, m7 ; (word) { B4, G4, R4, B5, B6, G6, R6, B7 }
@ -215,7 +208,7 @@ cglobal %2 %+ 24ToY, 6, 6, %1, dst, src, u1, u2, w, table
add wq, mmsize
jl .loop
REP_RET
%endif ; (ARCH_X86_64 && %0 == 3) || mmsize == 8
%endif ; ARCH_X86_64 && %0 == 3
%endmacro
; %1 = nr. of XMM registers
@ -275,12 +268,10 @@ cglobal %2 %+ 24ToUV, 7, 7, %1, dstU, dstV, u1, src, u2, w, table
movd m1, [srcq+2] ; (byte) { R0, B1, G1, R1 }
movd m4, [srcq+6] ; (byte) { B2, G2, R2, B3 }
movd m5, [srcq+8] ; (byte) { R2, B3, G3, R3 }
%if mmsize == 16
punpckldq m0, m4 ; (byte) { B0, G0, R0, B1, B2, G2, R2, B3 }
punpckldq m1, m5 ; (byte) { R0, B1, G1, R1, R2, B3, G3, R3 }
movd m4, [srcq+12] ; (byte) { B4, G4, R4, B5 }
movd m5, [srcq+14] ; (byte) { R4, B5, G5, R5 }
%endif ; mmsize == 16
punpcklbw m0, m7 ; (word) { B0, G0, R0, B1, B2, G2, R2, B3 }
punpcklbw m1, m7 ; (word) { R0, B1, G1, R1, R2, B3, G3, R3 }
%endif ; cpuflag(ssse3)
@ -294,12 +285,10 @@ cglobal %2 %+ 24ToUV, 7, 7, %1, dstU, dstV, u1, src, u2, w, table
pshufb m5, m4, shuf_rgb2 ; (word) { R4, B5, G5, R5, R6, B7, G7, R7 }
pshufb m4, shuf_rgb1 ; (word) { B4, G4, R4, B5, B6, G6, R6, B7 }
%else ; !cpuflag(ssse3)
%if mmsize == 16
movd m1, [srcq+18] ; (byte) { B6, G6, R6, B7 }
movd m3, [srcq+20] ; (byte) { R6, B7, G7, R7 }
punpckldq m4, m1 ; (byte) { B4, G4, R4, B5, B6, G6, R6, B7 }
punpckldq m5, m3 ; (byte) { R4, B5, G5, R5, R6, B7, G7, R7 }
%endif ; mmsize == 16 && !cpuflag(ssse3)
punpcklbw m4, m7 ; (word) { B4, G4, R4, B5, B6, G6, R6, B7 }
punpcklbw m5, m7 ; (word) { R4, B5, G5, R5, R6, B7, G7, R7 }
%endif ; cpuflag(ssse3)
@ -320,13 +309,8 @@ cglobal %2 %+ 24ToUV, 7, 7, %1, dstU, dstV, u1, src, u2, w, table
psrad m4, 9
packssdw m0, m1 ; (word) { U[0-7] }
packssdw m2, m4 ; (word) { V[0-7] }
%if mmsize == 8
mova [dstUq+wq], m0
mova [dstVq+wq], m2
%else ; mmsize == 16
mova [dstUq+wq], m0
mova [dstVq+wq], m2
%endif ; mmsize == 8/16
add wq, mmsize
jl .loop
REP_RET
@ -342,11 +326,6 @@ RGB24_TO_UV_FN %2, rgb
RGB24_TO_UV_FN %2, bgr, rgb
%endmacro
%if ARCH_X86_32
INIT_MMX mmx
RGB24_FUNCS 0, 0
%endif
INIT_XMM sse2
RGB24_FUNCS 10, 12
@ -483,13 +462,8 @@ cglobal %2%3%4%5 %+ ToUV, 7, 7, %1, dstU, dstV, u1, src, u2, w, table
psrad m1, 9
packssdw m0, m4 ; (word) { U[0-7] }
packssdw m2, m1 ; (word) { V[0-7] }
%if mmsize == 8
mova [dstUq+wq], m0
mova [dstVq+wq], m2
%else ; mmsize == 16
mova [dstUq+wq], m0
mova [dstVq+wq], m2
%endif ; mmsize == 8/16
add wq, mmsize
jl .loop
sub wq, mmsize - 1
@ -535,11 +509,6 @@ RGB32_TO_UV_FN %2, a, r, g, b, rgba
RGB32_TO_UV_FN %2, a, b, g, r, rgba
%endmacro
%if ARCH_X86_32
INIT_MMX mmx
RGB32_FUNCS 0, 0
%endif
INIT_XMM sse2
RGB32_FUNCS 8, 12
@ -588,25 +557,18 @@ cglobal %2ToY, 5, 5, %1, dst, unused0, unused1, src, w
movsxd wq, wd
%endif
add dstq, wq
%if mmsize == 16
test srcq, 15
%endif
lea srcq, [srcq+wq*2]
%ifidn %2, yuyv
pcmpeqb m2, m2 ; (byte) { 0xff } x 16
psrlw m2, 8 ; (word) { 0x00ff } x 8
%endif ; yuyv
%if mmsize == 16
jnz .loop_u_start
neg wq
LOOP_YUYV_TO_Y a, %2
.loop_u_start:
neg wq
LOOP_YUYV_TO_Y u, %2
%else ; mmsize == 8
neg wq
LOOP_YUYV_TO_Y a, %2
%endif ; mmsize == 8/16
%endmacro
; %1 = a (aligned) or u (unaligned)
@ -632,16 +594,9 @@ cglobal %2ToY, 5, 5, %1, dst, unused0, unused1, src, w
packuswb m0, m1 ; (byte) { U0, V0, ..., U7, V7 }
pand m1, m0, m2 ; (word) { U0, U1, ..., U7 }
psrlw m0, 8 ; (word) { V0, V1, ..., V7 }
%if mmsize == 16
packuswb m1, m0 ; (byte) { U0, ... U7, V1, ... V7 }
movh [dstUq+wq], m1
movhps [dstVq+wq], m1
%else ; mmsize == 8
packuswb m1, m1 ; (byte) { U0, ... U3 }
packuswb m0, m0 ; (byte) { V0, ... V3 }
movh [dstUq+wq], m1
movh [dstVq+wq], m0
%endif ; mmsize == 8/16
add wq, mmsize / 2
jl .loop_%1
REP_RET
@ -661,24 +616,24 @@ cglobal %2ToUV, 4, 5, %1, dstU, dstV, unused, src, w
%endif
add dstUq, wq
add dstVq, wq
%if mmsize == 16 && %0 == 2
%if %0 == 2
test srcq, 15
%endif
lea srcq, [srcq+wq*4]
pcmpeqb m2, m2 ; (byte) { 0xff } x 16
psrlw m2, 8 ; (word) { 0x00ff } x 8
; NOTE: if uyvy+avx, u/a are identical
%if mmsize == 16 && %0 == 2
%if %0 == 2
jnz .loop_u_start
neg wq
LOOP_YUYV_TO_UV a, %2
.loop_u_start:
neg wq
LOOP_YUYV_TO_UV u, %2
%else ; mmsize == 8
%else
neg wq
LOOP_YUYV_TO_UV a, %2
%endif ; mmsize == 8/16
%endif
%endmacro
; %1 = a (aligned) or u (unaligned)
@ -716,35 +671,18 @@ cglobal %2ToUV, 4, 5, %1, dstU, dstV, unused, src, w
%endif
add dstUq, wq
add dstVq, wq
%if mmsize == 16
test srcq, 15
%endif
lea srcq, [srcq+wq*2]
pcmpeqb m5, m5 ; (byte) { 0xff } x 16
psrlw m5, 8 ; (word) { 0x00ff } x 8
%if mmsize == 16
jnz .loop_u_start
neg wq
LOOP_NVXX_TO_UV a, %2
.loop_u_start:
neg wq
LOOP_NVXX_TO_UV u, %2
%else ; mmsize == 8
neg wq
LOOP_NVXX_TO_UV a, %2
%endif ; mmsize == 8/16
%endmacro
%if ARCH_X86_32
INIT_MMX mmx
YUYV_TO_Y_FN 0, yuyv
YUYV_TO_Y_FN 0, uyvy
YUYV_TO_UV_FN 0, yuyv
YUYV_TO_UV_FN 0, uyvy
NVXX_TO_UV_FN 0, nv12
NVXX_TO_UV_FN 0, nv21
%endif
INIT_XMM sse2
YUYV_TO_Y_FN 3, yuyv
YUYV_TO_Y_FN 2, uyvy

30
libswscale/x86/output.asm
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@ -312,11 +312,9 @@ cglobal yuv2planeX_%1, %3, 8, %2, filter, fltsize, src, dst, w, dither, offset
%endif ; %1 == 8/9/10/16
%endmacro
%if ARCH_X86_32
%if ARCH_X86_32 && HAVE_ALIGNED_STACK == 0
INIT_MMX mmxext
yuv2planeX_fn 8, 0, 7
yuv2planeX_fn 9, 0, 5
yuv2planeX_fn 10, 0, 5
%endif
INIT_XMM sse2
@ -407,19 +405,11 @@ cglobal yuv2plane1_%1, %3, %3, %2, src, dst, w, dither, offset
movq m3, [ditherq] ; dither
test offsetd, offsetd
jz .no_rot
%if mmsize == 16
punpcklqdq m3, m3
%endif ; mmsize == 16
PALIGNR m3, m3, 3, m2
.no_rot:
%if mmsize == 8
mova m2, m3
punpckhbw m3, m4 ; byte->word
punpcklbw m2, m4 ; byte->word
%else
punpcklbw m3, m4
mova m2, m3
%endif
%elif %1 == 9
pxor m4, m4
mova m3, [pw_512]
@ -431,36 +421,22 @@ cglobal yuv2plane1_%1, %3, %3, %2, src, dst, w, dither, offset
%else ; %1 == 16
%if cpuflag(sse4) ; sse4/avx
mova m4, [pd_4]
%else ; mmx/sse2
%else ; sse2
mova m4, [pd_4min0x40000]
mova m5, [minshort]
%endif ; mmx/sse2/sse4/avx
%endif ; sse2/sse4/avx
%endif ; %1 == ..
; actual pixel scaling
%if mmsize == 8
yuv2plane1_mainloop %1, a
%else ; mmsize == 16
test dstq, 15
jnz .unaligned
yuv2plane1_mainloop %1, a
REP_RET
.unaligned:
yuv2plane1_mainloop %1, u
%endif ; mmsize == 8/16
REP_RET
%endmacro
%if ARCH_X86_32
INIT_MMX mmx
yuv2plane1_fn 8, 0, 5
yuv2plane1_fn 16, 0, 3
INIT_MMX mmxext
yuv2plane1_fn 9, 0, 3
yuv2plane1_fn 10, 0, 3
%endif
INIT_XMM sse2
yuv2plane1_fn 8, 5, 5
yuv2plane1_fn 9, 5, 3

45
libswscale/x86/scale.asm
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@ -61,13 +61,11 @@ cglobal hscale%1to%2_%4, %5, 10, %6, pos0, dst, w, srcmem, filter, fltpos, fltsi
%define mov32 mov
%endif ; x86-64
%if %2 == 19
%if mmsize == 8 ; mmx
mova m2, [max_19bit_int]
%elif cpuflag(sse4)
%if cpuflag(sse4)
mova m2, [max_19bit_int]
%else ; ssse3/sse2
mova m2, [max_19bit_flt]
%endif ; mmx/sse2/ssse3/sse4
%endif ; sse2/ssse3/sse4
%endif ; %2 == 19
%if %1 == 16
mova m6, [minshort]
@ -144,12 +142,7 @@ cglobal hscale%1to%2_%4, %5, 10, %6, pos0, dst, w, srcmem, filter, fltpos, fltsi
pmaddwd m1, [filterq+wq*8+mmsize*1] ; *= filter[{8,9,..,14,15}]
; add up horizontally (4 srcpix * 4 coefficients -> 1 dstpix)
%if mmsize == 8 ; mmx
movq m4, m0
punpckldq m0, m1
punpckhdq m4, m1
paddd m0, m4
%elif notcpuflag(ssse3) ; sse2
%if notcpuflag(ssse3) ; sse2
mova m4, m0
shufps m0, m1, 10001000b
shufps m4, m1, 11011101b
@ -159,7 +152,7 @@ cglobal hscale%1to%2_%4, %5, 10, %6, pos0, dst, w, srcmem, filter, fltpos, fltsi
; filter[{ 4, 5, 6, 7}]*src[filterPos[1]+{0,1,2,3}],
; filter[{ 8, 9,10,11}]*src[filterPos[2]+{0,1,2,3}],
; filter[{12,13,14,15}]*src[filterPos[3]+{0,1,2,3}]
%endif ; mmx/sse2/ssse3/sse4
%endif ; sse2/ssse3/sse4
%else ; %3 == 8, i.e. filterSize == 8 scaling
; load 2x8 or 4x8 source pixels into m0, m1, m4 and m5
mov32 pos0q, dword [fltposq+wq*2+0] ; filterPos[0]
@ -197,14 +190,7 @@ cglobal hscale%1to%2_%4, %5, 10, %6, pos0, dst, w, srcmem, filter, fltpos, fltsi
pmaddwd m5, [filterq+wq*8+mmsize*3] ; *= filter[{24,25,..,30,31}]
; add up horizontally (8 srcpix * 8 coefficients -> 1 dstpix)
%if mmsize == 8
paddd m0, m1
paddd m4, m5
movq m1, m0
punpckldq m0, m4
punpckhdq m1, m4
paddd m0, m1
%elif notcpuflag(ssse3) ; sse2
%if notcpuflag(ssse3) ; sse2
%if %1 == 8
%define mex m6
%else
@ -233,7 +219,7 @@ cglobal hscale%1to%2_%4, %5, 10, %6, pos0, dst, w, srcmem, filter, fltpos, fltsi
; filter[{ 8, 9,...,14,15}]*src[filterPos[1]+{0,1,...,6,7}],
; filter[{16,17,...,22,23}]*src[filterPos[2]+{0,1,...,6,7}],
; filter[{24,25,...,30,31}]*src[filterPos[3]+{0,1,...,6,7}]
%endif ; mmx/sse2/ssse3/sse4
%endif ; sse2/ssse3/sse4
%endif ; %3 == 4/8
%else ; %3 == X, i.e. any filterSize scaling
@ -274,7 +260,7 @@ cglobal hscale%1to%2_%4, %5, 10, %6, pos0, dst, w, srcmem, filter, fltpos, fltsi
mov srcq, srcmemmp
.innerloop:
; load 2x4 (mmx) or 2x8 (sse) source pixels into m0/m1 -> m4/m5
; load 2x8 (sse) source pixels into m0/m1 -> m4/m5
movbh m0, [srcq+ pos0q *srcmul] ; src[filterPos[0] + {0,1,2,3(,4,5,6,7)}]
movbh m1, [srcq+(pos1q+dlt)*srcmul] ; src[filterPos[1] + {0,1,2,3(,4,5,6,7)}]
%if %1 == 8
@ -319,12 +305,6 @@ cglobal hscale%1to%2_%4, %5, 10, %6, pos0, dst, w, srcmem, filter, fltpos, fltsi
lea filterq, [filterq+(fltsizeq+dlt)*2]
%if mmsize == 8 ; mmx
movq m0, m4
punpckldq m4, m5
punpckhdq m0, m5
paddd m0, m4
%else ; mmsize == 16
%if notcpuflag(ssse3) ; sse2
mova m1, m4
punpcklqdq m4, m5
@ -344,7 +324,6 @@ cglobal hscale%1to%2_%4, %5, 10, %6, pos0, dst, w, srcmem, filter, fltpos, fltsi
phaddd m4, m4
SWAP 0, 4
%endif ; sse2/ssse3/sse4
%endif ; mmsize == 8/16
%endif ; %3 ==/!= X
%if %1 == 16 ; add 0x8000 * sum(coeffs), i.e. back from signed -> unsigned
@ -372,7 +351,7 @@ cglobal hscale%1to%2_%4, %5, 10, %6, pos0, dst, w, srcmem, filter, fltpos, fltsi
%endif ; %3 ==/!= X
%endif ; %2 == 15/19
%ifnidn %3, X
add wq, (mmsize<<wshr)/4 ; both 8tap and 4tap really only do 4 pixels (or for mmx: 2 pixels)
add wq, (mmsize<<wshr)/4 ; both 8tap and 4tap really only do 4 pixels
; per iteration. see "shl wq,1" above as for why we do this
%else ; %3 == X
add wq, 2
@ -385,12 +364,8 @@ cglobal hscale%1to%2_%4, %5, 10, %6, pos0, dst, w, srcmem, filter, fltpos, fltsi
%macro SCALE_FUNCS 3
SCALE_FUNC %1, %2, 4, 4, 6, %3
SCALE_FUNC %1, %2, 8, 8, 6, %3
%if mmsize == 8
SCALE_FUNC %1, %2, X, X, 7, %3
%else
SCALE_FUNC %1, %2, X, X4, 7, %3
SCALE_FUNC %1, %2, X, X8, 7, %3
%endif
%endmacro
; SCALE_FUNCS2 8_xmm_args, 9to10_xmm_args, 16_xmm_args
@ -411,10 +386,6 @@ SCALE_FUNCS 14, 19, %2
SCALE_FUNCS 16, 19, %3
%endmacro
%if ARCH_X86_32
INIT_MMX mmx
SCALE_FUNCS2 0, 0, 0
%endif
INIT_XMM sse2
SCALE_FUNCS2 7, 6, 8
INIT_XMM ssse3

83
libswscale/x86/swscale.c
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@ -54,14 +54,6 @@ DECLARE_ASM_ALIGNED(8, const uint64_t, ff_bgr2UVOffset) = 0x8080808080808080ULL;
DECLARE_ASM_ALIGNED(8, const uint64_t, ff_w1111) = 0x0001000100010001ULL;
//MMX versions
#if HAVE_MMX_INLINE
#undef RENAME
#define COMPILE_TEMPLATE_MMXEXT 0
#define RENAME(a) a ## _mmx
#include "swscale_template.c"
#endif
// MMXEXT versions
#if HAVE_MMXEXT_INLINE
#undef RENAME
@ -269,9 +261,6 @@ void ff_hscale ## from_bpc ## to ## to_bpc ## _ ## filter_n ## _ ## opt( \
SCALE_FUNCS(X4, opt); \
SCALE_FUNCS(X8, opt)
#if ARCH_X86_32
SCALE_FUNCS_MMX(mmx);
#endif
SCALE_FUNCS_SSE(sse2);
SCALE_FUNCS_SSE(ssse3);
SCALE_FUNCS_SSE(sse4);
@ -288,9 +277,7 @@ void ff_yuv2planeX_ ## size ## _ ## opt(const int16_t *filter, int filterSize, \
VSCALEX_FUNC(9, opt); \
VSCALEX_FUNC(10, opt)
#if ARCH_X86_32
VSCALEX_FUNCS(mmxext);
#endif
VSCALEX_FUNC(8, mmxext);
VSCALEX_FUNCS(sse2);
VSCALEX_FUNCS(sse4);
VSCALEX_FUNC(16, sse4);
@ -305,9 +292,6 @@ void ff_yuv2plane1_ ## size ## _ ## opt(const int16_t *src, uint8_t *dst, int ds
VSCALE_FUNC(10, opt2); \
VSCALE_FUNC(16, opt1)
#if ARCH_X86_32
VSCALE_FUNCS(mmx, mmxext);
#endif
VSCALE_FUNCS(sse2, sse2);
VSCALE_FUNC(16, sse4);
VSCALE_FUNCS(avx, avx);
@ -337,9 +321,6 @@ void ff_ ## fmt ## ToUV_ ## opt(uint8_t *dstU, uint8_t *dstV, \
INPUT_FUNC(rgb24, opt); \
INPUT_FUNC(bgr24, opt)
#if ARCH_X86_32
INPUT_FUNCS(mmx);
#endif
INPUT_FUNCS(sse2);
INPUT_FUNCS(ssse3);
INPUT_FUNCS(avx);
@ -470,19 +451,11 @@ av_cold void ff_sws_init_swscale_x86(SwsContext *c)
{
int cpu_flags = av_get_cpu_flags();
#if HAVE_MMX_INLINE
if (INLINE_MMX(cpu_flags))
sws_init_swscale_mmx(c);
#endif
#if HAVE_MMXEXT_INLINE
if (INLINE_MMXEXT(cpu_flags))
sws_init_swscale_mmxext(c);
#endif
if(c->use_mmx_vfilter && !(c->flags & SWS_ACCURATE_RND)) {
#if HAVE_MMX_EXTERNAL
if (EXTERNAL_MMX(cpu_flags))
c->yuv2planeX = yuv2yuvX_mmx;
#endif
#if HAVE_MMXEXT_EXTERNAL
if (EXTERNAL_MMXEXT(cpu_flags))
c->yuv2planeX = yuv2yuvX_mmxext;
@ -496,6 +469,14 @@ av_cold void ff_sws_init_swscale_x86(SwsContext *c)
c->yuv2planeX = yuv2yuvX_avx2;
#endif
}
#if ARCH_X86_32 && !HAVE_ALIGNED_STACK
// The better yuv2planeX_8 functions need aligned stack on x86-32,
// so we use MMXEXT in this case if they are not available.
if (EXTERNAL_MMXEXT(cpu_flags)) {
if (c->dstBpc == 8 && !c->use_mmx_vfilter)
c->yuv2planeX = ff_yuv2planeX_8_mmxext;
}
#endif /* ARCH_X86_32 && !HAVE_ALIGNED_STACK */
#define ASSIGN_SCALE_FUNC2(hscalefn, filtersize, opt1, opt2) do { \
if (c->srcBpc == 8) { \
@ -519,12 +500,6 @@ av_cold void ff_sws_init_swscale_x86(SwsContext *c)
ff_hscale16to19_ ## filtersize ## _ ## opt1; \
} \
} while (0)
#define ASSIGN_MMX_SCALE_FUNC(hscalefn, filtersize, opt1, opt2) \
switch (filtersize) { \
case 4: ASSIGN_SCALE_FUNC2(hscalefn, 4, opt1, opt2); break; \
case 8: ASSIGN_SCALE_FUNC2(hscalefn, 8, opt1, opt2); break; \
default: ASSIGN_SCALE_FUNC2(hscalefn, X, opt1, opt2); break; \
}
#define ASSIGN_VSCALEX_FUNC(vscalefn, opt, do_16_case, condition_8bit) \
switch(c->dstBpc){ \
case 16: do_16_case; break; \
@ -546,46 +521,6 @@ switch(c->dstBpc){ \
if (!c->chrSrcHSubSample) \
c->chrToYV12 = ff_ ## x ## ToUV_ ## opt; \
break
#if ARCH_X86_32
if (EXTERNAL_MMX(cpu_flags)) {
ASSIGN_MMX_SCALE_FUNC(c->hyScale, c->hLumFilterSize, mmx, mmx);
ASSIGN_MMX_SCALE_FUNC(c->hcScale, c->hChrFilterSize, mmx, mmx);
ASSIGN_VSCALE_FUNC(c->yuv2plane1, mmx, mmxext, cpu_flags & AV_CPU_FLAG_MMXEXT);
switch (c->srcFormat) {
case AV_PIX_FMT_YA8:
c->lumToYV12 = ff_yuyvToY_mmx;
if (c->needAlpha)
c->alpToYV12 = ff_uyvyToY_mmx;
break;
case AV_PIX_FMT_YUYV422:
c->lumToYV12 = ff_yuyvToY_mmx;
c->chrToYV12 = ff_yuyvToUV_mmx;
break;
case AV_PIX_FMT_UYVY422:
c->lumToYV12 = ff_uyvyToY_mmx;
c->chrToYV12 = ff_uyvyToUV_mmx;
break;
case AV_PIX_FMT_NV12:
c->chrToYV12 = ff_nv12ToUV_mmx;
break;
case AV_PIX_FMT_NV21:
c->chrToYV12 = ff_nv21ToUV_mmx;
break;
case_rgb(rgb24, RGB24, mmx);
case_rgb(bgr24, BGR24, mmx);
case_rgb(bgra, BGRA, mmx);
case_rgb(rgba, RGBA, mmx);
case_rgb(abgr, ABGR, mmx);
case_rgb(argb, ARGB, mmx);
default:
break;
}
}
if (EXTERNAL_MMXEXT(cpu_flags)) {
ASSIGN_VSCALEX_FUNC(c->yuv2planeX, mmxext, , 1);
}
#endif /* ARCH_X86_32 */
#define ASSIGN_SSE_SCALE_FUNC(hscalefn, filtersize, opt1, opt2) \
switch (filtersize) { \
case 4: ASSIGN_SCALE_FUNC2(hscalefn, 4, opt1, opt2); break; \

30
libswscale/x86/swscale_template.c
Unescape View File

@ -29,13 +29,8 @@
#undef PREFETCH
#if COMPILE_TEMPLATE_MMXEXT
#define REAL_MOVNTQ(a,b) "movntq " #a ", " #b " \n\t"
#define MOVNTQ2 "movntq "
#else
#define REAL_MOVNTQ(a,b) "movq " #a ", " #b " \n\t"
#define MOVNTQ2 "movq "
#endif
#define MOVNTQ(a,b) REAL_MOVNTQ(a,b)
#define YSCALEYUV2PACKEDX_UV \
@ -600,13 +595,8 @@ static void RENAME(yuv2rgb555_X)(SwsContext *c, const int16_t *lumFilter,
"cmp "dstw", "#index" \n\t"\
" jb 1b \n\t"
#if COMPILE_TEMPLATE_MMXEXT
#undef WRITEBGR24
#define WRITEBGR24(dst, dstw, index) WRITEBGR24MMXEXT(dst, dstw, index)
#else
#undef WRITEBGR24
#define WRITEBGR24(dst, dstw, index) WRITEBGR24MMX(dst, dstw, index)
#endif
#if HAVE_6REGS
static void RENAME(yuv2bgr24_X_ar)(SwsContext *c, const int16_t *lumFilter,
@ -1478,17 +1468,13 @@ static av_cold void RENAME(sws_init_swscale)(SwsContext *c)
}
if (c->srcBpc == 8 && c->dstBpc <= 14) {
// Use the new MMX scaler if the MMXEXT one can't be used (it is faster than the x86 ASM one).
#if COMPILE_TEMPLATE_MMXEXT
if (c->flags & SWS_FAST_BILINEAR && c->canMMXEXTBeUsed) {
c->hyscale_fast = ff_hyscale_fast_mmxext;
c->hcscale_fast = ff_hcscale_fast_mmxext;
} else {
#endif /* COMPILE_TEMPLATE_MMXEXT */
c->hyscale_fast = NULL;
c->hcscale_fast = NULL;
#if COMPILE_TEMPLATE_MMXEXT
}
#endif /* COMPILE_TEMPLATE_MMXEXT */
// Use the new MMX scaler if the MMXEXT one can't be used (it is faster than the x86 ASM one).
if (c->flags & SWS_FAST_BILINEAR && c->canMMXEXTBeUsed) {
c->hyscale_fast = ff_hyscale_fast_mmxext;
c->hcscale_fast = ff_hcscale_fast_mmxext;
} else {
c->hyscale_fast = NULL;
c->hcscale_fast = NULL;
}
}
}

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