Chroma (width=8) inner loopfilter MMX/MMX2/SSE2 for VP8 decoder.

Originally committed as revision 24377 to svn://svn.ffmpeg.org/ffmpeg/trunk

1 files changed, 131 insertions, 77 deletions

diff --git a/libavcodec/x86/vp8dsp.asm b/libavcodec/x86/vp8dsp.asm
index 02b6f8dff8..983dc6d545 100644
--- a/libavcodec/x86/vp8dsp.asm
+++ b/libavcodec/x86/vp8dsp.asm
@@ -1164,12 +1164,16 @@ cglobal vp8_luma_dc_wht_mmxext, 2,3
 ; arguments same as WRITE_2x4D, but with an extra register, so that the 5 regular
 ; registers contain buf+4*stride, buf+5*stride, buf+12*stride, -stride and +stride
 ; we add 1*stride to the third regular registry in the process
-%macro WRITE_4x4D 9
+; the 10th argument is 16 if it's a Y filter (i.e. all regular registers cover the
+; same memory region), or 8 if they cover two separate buffers (third one points to
+; a different memory region than the first two), allowing for more optimal code for
+; the 16-width case
+%macro WRITE_4x4D 10
     ; write out (4 dwords per register), start with dwords zero
     movd    [%5+%8*4], m%1
     movd         [%5], m%2
-    movd    [%5+%9*4], m%3
-    movd    [%5+%9*8], m%4
+    movd    [%7+%8*4], m%3
+    movd         [%7], m%4
 
     ; store dwords 1
     psrldq        m%1, 4
@@ -1178,15 +1182,23 @@ cglobal vp8_luma_dc_wht_mmxext, 2,3
     psrldq        m%4, 4
     movd    [%6+%8*4], m%1
     movd         [%6], m%2
+%if %10 == 16
     movd    [%6+%9*4], m%3
-    movd    [%6+%9*8], m%4
+%endif
+    movd      [%7+%9], m%4
 
     ; write dwords 2
     psrldq        m%1, 4
     psrldq        m%2, 4
+%if %10 == 8
+    movd    [%5+%8*2], m%1
+    movd           %5, m%3
+%endif
     psrldq        m%3, 4
     psrldq        m%4, 4
+%if %10 == 16
     movd    [%5+%8*2], m%1
+%endif
     movd      [%6+%9], m%2
     movd    [%7+%8*2], m%3
     movd    [%7+%9*2], m%4
@@ -1197,7 +1209,12 @@ cglobal vp8_luma_dc_wht_mmxext, 2,3
     psrldq        m%2, 4
     psrldq        m%3, 4
     psrldq        m%4, 4
+%if %10 == 8
+    mov     [%7+%8*4], %5d
+    movd    [%6+%8*2], m%1
+%else
     movd      [%5+%8], m%1
+%endif
     movd    [%6+%9*2], m%2
     movd    [%7+%8*2], m%3
     movd    [%7+%9*2], m%4
@@ -1335,7 +1352,7 @@ cglobal vp8_%2_loop_filter_simple_%1, 3, %3
     TRANSPOSE4x4B  0, 1, 2, 3, 4
 %if mmsize == 16 ; sse2
     add            r3, r1           ; change from r4*8*stride to r0+8*stride
-    WRITE_4x4D 0, 1, 2, 3, r0, r4, r3, r1, r2
+    WRITE_4x4D 0, 1, 2, 3, r0, r4, r3, r1, r2, 16
 %else ; mmx/mmxext
     WRITE_4x2D 0, 1, 2, 3, r0, r4, r1, r2
 %endif
@@ -1374,13 +1391,20 @@ SIMPLE_LOOPFILTER sse2,   v, 3
 SIMPLE_LOOPFILTER sse2,   h, 6
 
 ;-----------------------------------------------------------------------------
-; void vp8_h/v_loop_filter<size>_inner_<opt>(uint8_t *dst, int stride,
+; void vp8_h/v_loop_filter<size>_inner_<opt>(uint8_t *dst, [uint8_t *v,] int stride,
 ;                                            int flimE, int flimI, int hev_thr);
 ;-----------------------------------------------------------------------------
 
-%macro INNER_LOOPFILTER 4
-cglobal vp8_%2_loop_filter16y_inner_%1, 5, %3, %4
-%define dst_reg     r0
+%macro INNER_LOOPFILTER 5
+%if %4 == 8 ; chroma
+cglobal vp8_%2_loop_filter8uv_inner_%1, 6, %3, %5
+%define dst8_reg    r1
+%define mstride_reg r2
+%define E_reg       r3
+%define I_reg       r4
+%define hev_thr_reg r5
+%else ; luma
+cglobal vp8_%2_loop_filter16y_inner_%1, 5, %3, %5
 %define mstride_reg r1
 %define E_reg       r2
 %define I_reg       r3
@@ -1392,6 +1416,8 @@ cglobal vp8_%2_loop_filter16y_inner_%1, 5, %3, %4
 %else ; x86-32, mmx/mmxext
 %define cnt_reg     r5
 %endif
+%endif
+%define dst_reg     r0
 %define stride_reg  E_reg
 %define dst2_reg    I_reg
 %ifndef m8
@@ -1418,6 +1444,8 @@ cglobal vp8_%2_loop_filter16y_inner_%1, 5, %3, %4
 %define flim_I   [rsp+mmsize]
 %define hev_thr  [rsp+mmsize*2]
 %define mask_res [rsp+mmsize*3]
+%define p0backup [rsp+mmsize*3]
+%define q0backup [rsp+mmsize*4]
 
     mova         flim_E, m0
     mova         flim_I, m1
@@ -1429,6 +1457,8 @@ cglobal vp8_%2_loop_filter16y_inner_%1, 5, %3, %4
 %define flim_I   m10
 %define hev_thr  m11
 %define mask_res m12
+%define p0backup m12
+%define q0backup m8
 
     ; splat function arguments
     SPLATB_REG   flim_E, E_reg, %1   ; E
@@ -1436,13 +1466,16 @@ cglobal vp8_%2_loop_filter16y_inner_%1, 5, %3, %4
     SPLATB_REG  hev_thr, hev_thr_reg, %1 ; hev_thresh
 %endif
 
-%if mmsize == 8 ; mmx/mmxext
+%if mmsize == 8 && %4 == 16 ; mmx/mmxext
     mov         cnt_reg, 2
 %endif
     mov      stride_reg, mstride_reg
     neg     mstride_reg
 %ifidn %2, h
     lea         dst_reg, [dst_reg + stride_reg*4-4]
+%if %4 == 8
+    lea        dst8_reg, [dst8_reg+ stride_reg*4-4]
+%endif
 %endif
 
 %if mmsize == 8
@@ -1451,12 +1484,27 @@ cglobal vp8_%2_loop_filter16y_inner_%1, 5, %3, %4
     ; read
     lea        dst2_reg, [dst_reg + stride_reg]
 %ifidn %2, v
-    mova             m0, [dst_reg +mstride_reg*4] ; p3
-    mova             m1, [dst2_reg+mstride_reg*4] ; p2
-    mova             m2, [dst_reg +mstride_reg*2] ; p1
-    mova             m5, [dst2_reg]               ; q1
-    mova             m6, [dst2_reg+ stride_reg]   ; q2
-    mova             m7, [dst2_reg+ stride_reg*2] ; q3
+%if %4 == 8 && mmsize == 16
+%define movrow movh
+%else
+%define movrow mova
+%endif
+    movrow           m0, [dst_reg +mstride_reg*4] ; p3
+    movrow           m1, [dst2_reg+mstride_reg*4] ; p2
+    movrow           m2, [dst_reg +mstride_reg*2] ; p1
+    movrow           m5, [dst2_reg]               ; q1
+    movrow           m6, [dst2_reg+ stride_reg]   ; q2
+    movrow           m7, [dst2_reg+ stride_reg*2] ; q3
+%if mmsize == 16 && %4 == 8
+    movhps           m0, [dst8_reg+mstride_reg*4]
+    movhps           m2, [dst8_reg+mstride_reg*2]
+    add        dst8_reg, stride_reg
+    movhps           m1, [dst8_reg+mstride_reg*4]
+    movhps           m5, [dst8_reg]
+    movhps           m6, [dst8_reg+ stride_reg]
+    movhps           m7, [dst8_reg+ stride_reg*2]
+    add        dst8_reg, mstride_reg
+%endif
 %elif mmsize == 8 ; mmx/mmxext (h)
     ; read 8 rows of 8px each
     movu             m0, [dst_reg +mstride_reg*4]
@@ -1469,35 +1517,24 @@ cglobal vp8_%2_loop_filter16y_inner_%1, 5, %3, %4
 
     ; 8x8 transpose
     TRANSPOSE4x4B     0, 1, 2, 3, 7
-%ifdef m13
-    SWAP              1, 8
-%else
-    mova [rsp+mmsize*4], m1
-%endif
+    mova       q0backup, m1
     movu             m7, [dst2_reg+ stride_reg*2]
     TRANSPOSE4x4B     4, 5, 6, 7, 1
     SBUTTERFLY       dq, 0, 4, 1     ; p3/p2
     SBUTTERFLY       dq, 2, 6, 1     ; q0/q1
     SBUTTERFLY       dq, 3, 7, 1     ; q2/q3
-%ifdef m13
-    SWAP              1, 8
-    SWAP              2, 8
-%else
-    mova             m1, [rsp+mmsize*4]
-    mova [rsp+mmsize*4], m2          ; store q0
-%endif
+    mova             m1, q0backup
+    mova       q0backup, m2          ; store q0
     SBUTTERFLY       dq, 1, 5, 2     ; p1/p0
-%ifdef m14
-    SWAP              5, 12
-%else
-    mova [rsp+mmsize*3], m5          ; store p0
-%endif
+    mova       p0backup, m5          ; store p0
     SWAP              1, 4
     SWAP              2, 4
     SWAP              6, 3
     SWAP              5, 3
 %else ; sse2 (h)
+%if %4 == 16
     lea        dst8_reg, [dst_reg + stride_reg*8]
+%endif
 
     ; read 16 rows of 8px each, interleave
     movh             m0, [dst_reg +mstride_reg*4]
@@ -1526,10 +1563,10 @@ cglobal vp8_%2_loop_filter16y_inner_%1, 5, %3, %4
 
     ; 8x16 transpose
     TRANSPOSE4x4B     0, 1, 2, 3, 7
-%ifdef m13
+%ifdef m8
     SWAP              1, 8
 %else
-    mova [rsp+mmsize*4], m1
+    mova       q0backup, m1
 %endif
     movh             m7, [dst2_reg+ stride_reg*2]
     movh             m1, [dst8_reg+ stride_reg*2]
@@ -1538,18 +1575,18 @@ cglobal vp8_%2_loop_filter16y_inner_%1, 5, %3, %4
     SBUTTERFLY       dq, 0, 4, 1     ; p3/p2
     SBUTTERFLY       dq, 2, 6, 1     ; q0/q1
     SBUTTERFLY       dq, 3, 7, 1     ; q2/q3
-%ifdef m13
+%ifdef m8
     SWAP              1, 8
     SWAP              2, 8
 %else
-    mova             m1, [rsp+mmsize*4]
-    mova [rsp+mmsize*4], m2          ; store q0
+    mova             m1, q0backup
+    mova       q0backup, m2          ; store q0
 %endif
     SBUTTERFLY       dq, 1, 5, 2     ; p1/p0
-%ifdef m14
+%ifdef m12
     SWAP              5, 12
 %else
-    mova [rsp+mmsize*3], m5          ; store p0
+    mova       p0backup, m5          ; store p0
 %endif
     SWAP              1, 4
     SWAP              2, 4
@@ -1583,11 +1620,7 @@ cglobal vp8_%2_loop_filter16y_inner_%1, 5, %3, %4
     por              m6, m4          ; abs(q2-q1)
 
 %ifidn %1, mmx
-%ifdef m10
-    SWAP              4, 10
-%else
-    mova             m4, [rsp+mmsize]
-%endif
+    mova             m4, flim_I
     pxor             m3, m3
     psubusb          m0, m4
     psubusb          m1, m4
@@ -1609,11 +1642,14 @@ cglobal vp8_%2_loop_filter16y_inner_%1, 5, %3, %4
     ; normal_limit and high_edge_variance for p1-p0, q1-q0
     SWAP              7, 3           ; now m7 is zero
 %ifidn %2, v
-    mova             m3, [dst_reg +mstride_reg] ; p0
-%elifdef m14
+    movrow           m3, [dst_reg +mstride_reg] ; p0
+%if mmsize == 16 && %4 == 8
+    movhps           m3, [dst8_reg+mstride_reg]
+%endif
+%elifdef m12
     SWAP              3, 12
 %else
-    mova             m3, [rsp+mmsize*3]
+    mova             m3, p0backup
 %endif
 
     mova             m1, m2
@@ -1630,11 +1666,7 @@ cglobal vp8_%2_loop_filter16y_inner_%1, 5, %3, %4
     pcmpeqb          m1, m7          ; abs(p1-p0) <= I
     pcmpeqb          m6, m7          ; abs(p1-p0) <= hev_thresh
     pand             m0, m1
-%ifdef m12
-    SWAP              6, 12
-%else
-    mova [rsp+mmsize*3], m6
-%endif
+    mova       mask_res, m6
 %else ; mmxext/sse2
     pmaxub           m0, m1          ; max_I
     SWAP              1, 4           ; max_hev_thresh
@@ -1642,11 +1674,14 @@ cglobal vp8_%2_loop_filter16y_inner_%1, 5, %3, %4
 
     SWAP              6, 4           ; now m6 is I
 %ifidn %2, v
-    mova             m4, [dst_reg]   ; q0
-%elifdef m13
+    movrow           m4, [dst_reg]   ; q0
+%if mmsize == 16 && %4 == 8
+    movhps           m4, [dst8_reg]
+%endif
+%elifdef m8
     SWAP              4, 8
 %else
-    mova             m4, [rsp+mmsize*4]
+    mova             m4, q0backup
 %endif
     mova             m1, m4
     SWAP              1, 4
@@ -1662,11 +1697,7 @@ cglobal vp8_%2_loop_filter16y_inner_%1, 5, %3, %4
     pxor             m6, m6
     pcmpeqb          m1, m6          ; abs(q1-q0) <= I
     pcmpeqb          m7, m6          ; abs(q1-q0) <= hev_thresh
-%ifdef m12
-    SWAP              6, 12
-%else
-    mova             m6, [rsp+mmsize*3]
-%endif
+    mova             m6, mask_res
     pand             m0, m1          ; abs([pq][321]-[pq][210]) <= I
     pand             m6, m7
 %else ; mmxext/sse2
@@ -1681,7 +1712,7 @@ cglobal vp8_%2_loop_filter16y_inner_%1, 5, %3, %4
 %ifdef m12
     SWAP              6, 12
 %else
-    mova [rsp+mmsize*3], m6          ; !(abs(p1-p0) > hev_t || abs(q1-q0) > hev_t)
+    mova       mask_res, m6          ; !(abs(p1-p0) > hev_t || abs(q1-q0) > hev_t)
 %endif
 
     ; simple_limit
@@ -1765,7 +1796,7 @@ cglobal vp8_%2_loop_filter16y_inner_%1, 5, %3, %4
 %ifdef m12
     SWAP              6, 12
 %else
-    mova             m6, [rsp+mmsize*3]
+    mova             m6, mask_res
 %endif
 %ifidn %1, mmx
     mova             m7, [pb_1]
@@ -1793,13 +1824,19 @@ cglobal vp8_%2_loop_filter16y_inner_%1, 5, %3, %4
 
     ; store
 %ifidn %2, v
-    mova [dst_reg+mstride_reg*2], m2
-    mova [dst_reg+mstride_reg  ], m3
-    mova       [dst_reg], m4
-    mova [dst_reg+ stride_reg  ], m5
+    movrow [dst_reg +mstride_reg*2], m2
+    movrow [dst_reg +mstride_reg  ], m3
+    movrow    [dst_reg], m4
+    movrow [dst_reg + stride_reg  ], m5
+%if mmsize == 16 && %4 == 8
+    movhps [dst8_reg+mstride_reg*2], m2
+    movhps [dst8_reg+mstride_reg  ], m3
+    movhps   [dst8_reg], m4
+    movhps [dst8_reg+ stride_reg  ], m5
+%endif
 %else ; h
-    add          dst_reg, 2
-    add         dst2_reg, 2
+    add         dst_reg, 2
+    add        dst2_reg, 2
 
     ; 4x8/16 transpose
     TRANSPOSE4x4B     2, 3, 4, 5, 6
@@ -1808,11 +1845,19 @@ cglobal vp8_%2_loop_filter16y_inner_%1, 5, %3, %4
     WRITE_4x2D        2, 3, 4, 5, dst_reg, dst2_reg, mstride_reg, stride_reg
 %else ; sse2 (h)
     lea        dst8_reg, [dst8_reg+mstride_reg+2]
-    WRITE_4x4D        2, 3, 4, 5, dst_reg, dst2_reg, dst8_reg, mstride_reg, stride_reg
+    WRITE_4x4D        2, 3, 4, 5, dst_reg, dst2_reg, dst8_reg, mstride_reg, stride_reg, %4
 %endif
 %endif
 
 %if mmsize == 8
+%if %4 == 8 ; chroma
+%ifidn %2, h
+    sub         dst_reg, 2
+%endif
+    cmp         dst_reg, dst8_reg
+    mov         dst_reg, dst8_reg
+    jnz .next8px
+%else
 %ifidn %2, h
     lea         dst_reg, [dst_reg + stride_reg*8-2]
 %else ; v
@@ -1821,6 +1866,7 @@ cglobal vp8_%2_loop_filter16y_inner_%1, 5, %3, %4
     dec         cnt_reg
     jg .next8px
 %endif
+%endif
 
 %ifndef m8 ; sse2 on x86-32 or mmx/mmxext
     mov             rsp, stack_reg   ; restore stack pointer
@@ -1829,14 +1875,22 @@ cglobal vp8_%2_loop_filter16y_inner_%1, 5, %3, %4
 %endmacro
 
 INIT_MMX
-INNER_LOOPFILTER mmx,    v, 6, 8
-INNER_LOOPFILTER mmx,    h, 6, 8
-INNER_LOOPFILTER mmxext, v, 6, 8
-INNER_LOOPFILTER mmxext, h, 6, 8
+INNER_LOOPFILTER mmx,    v, 6, 16, 8
+INNER_LOOPFILTER mmx,    h, 6, 16, 8
+INNER_LOOPFILTER mmxext, v, 6, 16, 8
+INNER_LOOPFILTER mmxext, h, 6, 16, 8
+
+INNER_LOOPFILTER mmx,    v, 6,  8, 8
+INNER_LOOPFILTER mmx,    h, 6,  8, 8
+INNER_LOOPFILTER mmxext, v, 6,  8, 8
+INNER_LOOPFILTER mmxext, h, 6,  8, 8
+
 INIT_XMM
-INNER_LOOPFILTER sse2,   v, 5, 13
+INNER_LOOPFILTER sse2,   v, 5, 16, 13
 %ifdef m8
-INNER_LOOPFILTER sse2,   h, 5, 13
+INNER_LOOPFILTER sse2,   h, 5, 16, 13
 %else
-INNER_LOOPFILTER sse2,   h, 6, 13
+INNER_LOOPFILTER sse2,   h, 6, 16, 13
 %endif
+INNER_LOOPFILTER sse2,   v, 6,  8, 13
+INNER_LOOPFILTER sse2,   h, 6,  8, 13