/********************************************************************
* *
* THIS FILE IS PART OF THE OggTheora SOFTWARE CODEC SOURCE CODE. *
* USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS *
* GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE *
* IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. *
* *
* THE Theora SOURCE CODE IS COPYRIGHT (C) 2002-2009 *
* by the Xiph.Org Foundation http://www.xiph.org/ *
* *
********************************************************************
function:
last mod: $Id: dsp_mmx.c 14579 2008-03-12 06:42:40Z xiphmont $
********************************************************************/
#include <stddef.h>
#include "x86enc.h"
#if defined(OC_X86_ASM)
unsigned oc_enc_frag_sad_mmxext(const unsigned char *_src,
const unsigned char *_ref,int _ystride){
ptrdiff_t ret;
__asm{
#define SRC esi
#define REF edx
#define YSTRIDE ecx
#define YSTRIDE3 edi
mov YSTRIDE,_ystride
mov SRC,_src
mov REF,_ref
/*Load the first 4 rows of each block.*/
movq mm0,[SRC]
movq mm1,[REF]
movq mm2,[SRC][YSTRIDE]
movq mm3,[REF][YSTRIDE]
lea YSTRIDE3,[YSTRIDE+YSTRIDE*2]
movq mm4,[SRC+YSTRIDE*2]
movq mm5,[REF+YSTRIDE*2]
movq mm6,[SRC+YSTRIDE3]
movq mm7,[REF+YSTRIDE3]
/*Compute their SADs and add them in mm0*/
psadbw mm0,mm1
psadbw mm2,mm3
lea SRC,[SRC+YSTRIDE*4]
paddw mm0,mm2
lea REF,[REF+YSTRIDE*4]
/*Load the next 3 rows as registers become available.*/
movq mm2,[SRC]
movq mm3,[REF]
psadbw mm4,mm5
psadbw mm6,mm7
paddw mm0,mm4
movq mm5,[REF+YSTRIDE]
movq mm4,[SRC+YSTRIDE]
paddw mm0,mm6
movq mm7,[REF+YSTRIDE*2]
movq mm6,[SRC+YSTRIDE*2]
/*Start adding their SADs to mm0*/
psadbw mm2,mm3
psadbw mm4,mm5
paddw mm0,mm2
psadbw mm6,mm7
/*Load last row as registers become available.*/
movq mm2,[SRC+YSTRIDE3]
movq mm3,[REF+YSTRIDE3]
/*And finish adding up their SADs.*/
paddw mm0,mm4
psadbw mm2,mm3
paddw mm0,mm6
paddw mm0,mm2
movd [ret],mm0
#undef SRC
#undef REF
#undef YSTRIDE
#undef YSTRIDE3
}
return (unsigned)ret;
}
unsigned oc_enc_frag_sad_thresh_mmxext(const unsigned char *_src,
const unsigned char *_ref,int _ystride,unsigned _thresh){
/*Early termination is for suckers.*/
return oc_enc_frag_sad_mmxext(_src,_ref,_ystride);
}
#define OC_SAD2_LOOP __asm{ \
/*We want to compute (mm0+mm1>>1) on unsigned bytes without overflow, but \
pavgb computes (mm0+mm1+1>>1). \
The latter is exactly 1 too large when the low bit of two corresponding \
bytes is only set in one of them. \
Therefore we pxor the operands, pand to mask out the low bits, and psubb to \
correct the output of pavgb.*/ \
__asm movq mm6,mm0 \
__asm lea REF1,[REF1+YSTRIDE*2] \
__asm pxor mm0,mm1 \
__asm pavgb mm6,mm1 \
__asm lea REF2,[REF2+YSTRIDE*2] \
__asm movq mm1,mm2 \
__asm pand mm0,mm7 \
__asm pavgb mm2,mm3 \
__asm pxor mm1,mm3 \
__asm movq mm3,[REF2+YSTRIDE] \
__asm psubb mm6,mm0 \
__asm movq mm0,[REF1] \
__asm pand mm1,mm7 \
__asm psadbw mm4,mm6 \
__asm movd mm6,RET \
__asm psubb mm2,mm1 \
__asm movq mm1,[REF2] \
__asm lea SRC,[SRC+YSTRIDE*2] \
__asm psadbw mm5,mm2 \
__asm movq mm2,[REF1+YSTRIDE] \
__asm paddw mm5,mm4 \
__asm movq mm4,[SRC] \
__asm paddw mm6,mm5 \
__asm movq mm5,[SRC+YSTRIDE] \
__asm movd RET,mm6 \
}
/*Same as above, but does not pre-load the next two rows.*/
#define OC_SAD2_TAIL __asm{ \
__asm movq mm6,mm0 \
__asm pavgb mm0,mm1 \
__asm pxor mm6,mm1 \
__asm movq mm1,mm2 \
__asm pand mm6,mm7 \
__asm pavgb mm2,mm3 \
__asm pxor mm1,mm3 \
__asm psubb mm0,mm6 \
__asm pand mm1,mm7 \
__asm psadbw mm4,mm0 \
__asm psubb mm2,mm1 \
__asm movd mm6,RET \
__asm psadbw mm5,mm2 \
__asm paddw mm5,mm4 \
__asm paddw mm6,mm5 \
__asm movd RET,mm6 \
}
unsigned oc_enc_frag_sad2_thresh_mmxext(const unsigned char *_src,
const unsigned char *_ref1,const unsigned char *_ref2,int _ystride,
unsigned _thresh){
ptrdiff_t ret;
__asm{
#define REF1 ecx
#define REF2 edi
#define YSTRIDE esi
#define SRC edx
#define RET eax
mov YSTRIDE,_ystride
mov SRC,_src
mov REF1,_ref1
mov REF2,_ref2
movq mm0,[REF1]
movq mm1,[REF2]
movq mm2,[REF1+YSTRIDE]
movq mm3,[REF2+YSTRIDE]
xor RET,RET
movq mm4,[SRC]
pxor mm7,mm7
pcmpeqb mm6,mm6
movq mm5,[SRC+YSTRIDE]
psubb mm7,mm6
OC_SAD2_LOOP
OC_SAD2_LOOP
OC_SAD2_LOOP
OC_SAD2_TAIL
mov [ret],RET
#undef REF1
#undef REF2
#undef YSTRIDE
#undef SRC
#undef RET
}
return (unsigned)ret;
}
/*Load an 8x4 array of pixel values from %[src] and %[ref] and compute their
16-bit difference in mm0...mm7.*/
#define OC_LOAD_SUB_8x4(_off) __asm{ \
__asm movd mm0,[_off+SRC] \
__asm movd mm4,[_off+REF] \
__asm movd mm1,[_off+SRC+SRC_YSTRIDE] \
__asm lea SRC,[SRC+SRC_YSTRIDE*2] \
__asm movd mm5,[_off+REF+REF_YSTRIDE] \
__asm lea REF,[REF+REF_YSTRIDE*2] \
__asm movd mm2,[_off+SRC] \
__asm movd mm7,[_off+REF] \
__asm movd mm3,[_off+SRC+SRC_YSTRIDE] \
__asm movd mm6,[_off+REF+REF_YSTRIDE] \
__asm punpcklbw mm0,mm4 \
__asm lea SRC,[SRC+SRC_YSTRIDE*2] \
__asm punpcklbw mm4,mm4 \
__asm lea REF,[REF+REF_YSTRIDE*2] \
__asm psubw mm0,mm4 \
__asm movd mm4,[_off+SRC] \
__asm movq [_off*2+BUF],mm0 \
__asm movd mm0,[_off+REF] \
__asm punpcklbw mm1,mm5 \
__asm punpcklbw mm5,mm5 \
__asm psubw mm1,mm5 \
__asm movd mm5,[_off+SRC+SRC_YSTRIDE] \
__asm punpcklbw mm2,mm7 \
__asm punpcklbw mm7,mm7 \
__asm psubw mm2,mm7 \
__asm movd mm7,[_off+REF+REF_YSTRIDE] \
__asm punpcklbw mm3,mm6 \
__asm lea SRC,[SRC+SRC_YSTRIDE*2] \
__asm punpcklbw mm6,mm6 \
__asm psubw mm3,mm6 \
__asm movd mm6,[_off+SRC] \
__asm punpcklbw mm4,mm0 \
__asm lea REF,[REF+REF_YSTRIDE*2] \
__asm punpcklbw mm0,mm0 \
__asm lea SRC,[SRC+SRC_YSTRIDE*2] \
__asm psubw mm4,mm0 \
__asm movd mm0,[_off+REF] \
__asm punpcklbw mm5,mm7 \
__asm neg SRC_YSTRIDE \
__asm punpcklbw mm7,mm7 \
__asm psubw mm5,mm7 \
__asm movd mm7,[_off+SRC+SRC_YSTRIDE] \
__asm punpcklbw mm6,mm0 \
__asm lea REF,[REF+REF_YSTRIDE*2] \
__asm punpcklbw mm0,mm0 \
__asm neg REF_YSTRIDE \
__asm psubw mm6,mm0 \
__asm movd mm0,[_off+REF+REF_YSTRIDE] \
__asm lea SRC,[SRC+SRC_YSTRIDE*8] \
__asm punpcklbw mm7,mm0 \
__asm neg SRC_YSTRIDE \
__asm punpcklbw mm0,mm0 \
__asm lea REF,[REF+REF_YSTRIDE*8] \
__asm psubw mm7,mm0 \
__asm neg REF_YSTRIDE \
__asm movq mm0,[_off*2+BUF] \
}
/*Load an 8x4 array of pixel values from %[src] into %%mm0...%%mm7.*/
#define OC_LOAD_8x4(_off) __asm{ \
__asm movd mm0,[_off+SRC] \
__asm movd mm1,[_off+SRC+YSTRIDE] \
__asm movd mm2,[_off+SRC+YSTRIDE*2] \
__asm pxor mm7,mm7 \
__asm movd mm3,[_off+SRC+YSTRIDE3] \
__asm punpcklbw mm0,mm7 \
__asm movd mm4,[_off+SRC4] \
__asm punpcklbw mm1,mm7 \
__asm movd mm5,[_off+SRC4+YSTRIDE] \
__asm punpcklbw mm2,mm7 \
__asm movd mm6,[_off+SRC4+YSTRIDE*2] \
__asm punpcklbw mm3,mm7 \
__asm movd mm7,[_off+SRC4+YSTRIDE3] \
__asm punpcklbw mm4,mm4 \
__asm punpcklbw mm5,mm5 \
__asm psrlw mm4,8 \
__asm psrlw mm5,8 \
__asm punpcklbw mm6,mm6 \
__asm punpcklbw mm7,mm7 \
__asm psrlw mm6,8 \
__asm psrlw mm7,8 \
}
/*Performs the first two stages of an 8-point 1-D Hadamard transform.
The transform is performed in place, except that outputs 0-3 are swapped with
outputs 4-7.
Outputs 2, 3, 6 and 7 from the second stage are negated (which allows us to
perform this stage in place with no temporary registers).*/
#define OC_HADAMARD_AB_8x4 __asm{ \
/*Stage A: \
Outputs 0-3 are swapped with 4-7 here.*/ \
__asm paddw mm5,mm1 \
__asm paddw mm6,mm2 \
__asm paddw mm1,mm1 \
__asm paddw mm2,mm2 \
__asm psubw mm1,mm5 \
__asm psubw mm2,mm6 \
__asm paddw mm7,mm3 \
__asm paddw mm4,mm0 \
__asm paddw mm3,mm3 \
__asm paddw mm0,mm0 \
__asm psubw mm3,mm7 \
__asm psubw mm0,mm4 \
/*Stage B:*/ \
__asm paddw mm0,mm2 \
__asm paddw mm1,mm3 \
__asm paddw mm4,mm6 \
__asm paddw mm5,mm7 \
__asm paddw mm2,mm2 \
__asm paddw mm3,mm3 \
__asm paddw mm6,mm6 \
__asm paddw mm7,mm7 \
__asm psubw mm2,mm0 \
__asm psubw mm3,mm1 \
__asm psubw mm6,mm4 \
__asm psubw mm7,mm5 \
}
/*Performs the last stage of an 8-point 1-D Hadamard transform in place.
Ouputs 1, 3, 5, and 7 are negated (which allows us to perform this stage in
place with no temporary registers).*/
#define OC_HADAMARD_C_8x4 __asm{ \
/*Stage C:*/ \
__asm paddw mm0,mm1 \
__asm paddw mm2,mm3 \
__asm paddw mm4,mm5 \
__asm paddw mm6,mm7 \
__asm paddw mm1,mm1 \
__asm paddw mm3,mm3 \
__asm paddw mm5,mm5 \
__asm paddw mm7,mm7 \
__asm psubw mm1,mm0 \
__asm psubw mm3,mm2 \
__asm psubw mm5,mm4 \
__asm psubw mm7,mm6 \
}
/*Performs an 8-point 1-D Hadamard transform.
The transform is performed in place, except that outputs 0-3 are swapped with
outputs 4-7.
Outputs 1, 2, 5 and 6 are negated (which allows us to perform the transform
in place with no temporary registers).*/
#define OC_HADAMARD_8x4 __asm{ \
OC_HADAMARD_AB_8x4 \
OC_HADAMARD_C_8x4 \
}
/*Performs the first part of the final stage of the Hadamard transform and
summing of absolute values.
At the end of this part, mm1 will contain the DC coefficient of the
transform.*/
#define OC_HADAMARD_C_ABS_ACCUM_A_8x4(_r6,_r7) __asm{ \
/*We use the fact that \
(abs(a+b)+abs(a-b))/2=max(abs(a),abs(b)) \
to merge the final butterfly with the abs and the first stage of \
accumulation. \
Thus we can avoid using pabsw, which is not available until SSSE3. \
Emulating pabsw takes 3 instructions, so the straightforward MMXEXT \
implementation would be (3+3)*8+7=55 instructions (+4 for spilling \
registers). \
Even with pabsw, it would be (3+1)*8+7=39 instructions (with no spills). \
This implementation is only 26 (+4 for spilling registers).*/ \
__asm movq [_r7+BUF],mm7 \
__asm movq [_r6+BUF],mm6 \
/*mm7={0x7FFF}x4 \
mm0=max(abs(mm0),abs(mm1))-0x7FFF*/ \
__asm pcmpeqb mm7,mm7 \
__asm movq mm6,mm0 \
__asm psrlw mm7,1 \
__asm paddw mm6,mm1 \
__asm pmaxsw mm0,mm1 \
__asm paddsw mm6,mm7 \
__asm psubw mm0,mm6 \
/*mm2=max(abs(mm2),abs(mm3))-0x7FFF \
mm4=max(abs(mm4),abs(mm5))-0x7FFF*/ \
__asm movq mm6,mm2 \
__asm movq mm1,mm4 \
__asm pmaxsw mm2,mm3 \
__asm pmaxsw mm4,mm5 \
__asm paddw mm6,mm3 \
__asm paddw mm1,mm5 \
__asm movq mm3,[_r7+BUF] \
}
/*Performs the second part of the final stage of the Hadamard transform and
summing of absolute values.*/
#define OC_HADAMARD_C_ABS_ACCUM_B_8x4(_r6,_r7) __asm{ \
__asm paddsw mm6,mm7 \
__asm movq mm5,[_r6+BUF] \
__asm paddsw mm1,mm7 \
__asm psubw mm2,mm6 \
__asm psubw mm4,mm1 \
/*mm7={1}x4 (needed for the horizontal add that follows) \
mm0+=mm2+mm4+max(abs(mm3),abs(mm5))-0x7FFF*/ \
__asm movq mm6,mm3 \
__asm pmaxsw mm3,mm5 \
__asm paddw mm0,mm2 \
__asm paddw mm6,mm5 \
__asm paddw mm0,mm4 \
__asm paddsw mm6,mm7 \
__asm paddw mm0,mm3 \
__asm psrlw mm7,14 \
__asm psubw mm0,mm6 \
}
/*Performs the last stage of an 8-point 1-D Hadamard transform, takes the
absolute value of each component, and accumulates everything into mm0.
This is the only portion of SATD which requires MMXEXT (we could use plain
MMX, but it takes 4 instructions and an extra register to work around the
lack of a pmaxsw, which is a pretty serious penalty).*/
#define OC_HADAMARD_C_ABS_ACCUM_8x4(_r6,_r7) __asm{ \
OC_HADAMARD_C_ABS_ACCUM_A_8x4(_r6,_r7) \
OC_HADAMARD_C_ABS_ACCUM_B_8x4(_r6,_r7) \
}
/*Performs an 8-point 1-D Hadamard transform, takes the absolute value of each
component, and accumulates everything into mm0.
Note that mm0 will have an extra 4 added to each column, and that after
removing this value, the remainder will be half the conventional value.*/
#define OC_HADAMARD_ABS_ACCUM_8x4(_r6,_r7) __asm{ \
OC_HADAMARD_AB_8x4 \
OC_HADAMARD_C_ABS_ACCUM_8x4(_r6,_r7) \
}
/*Performs two 4x4 transposes (mostly) in place.
On input, {mm0,mm1,mm2,mm3} contains rows {e,f,g,h}, and {mm4,mm5,mm6,mm7}
contains rows {a,b,c,d}.
On output, {0x40,0x50,0x60,0x70}+_off+BUF contains {e,f,g,h}^T, and
{mm4,mm5,mm6,mm7} contains the transposed rows {a,b,c,d}^T.*/
#define OC_TRANSPOSE_4x4x2(_off) __asm{ \
/*First 4x4 transpose:*/ \
__asm movq [0x10+_off+BUF],mm5 \
/*mm0 = e3 e2 e1 e0 \
mm1 = f3 f2 f1 f0 \
mm2 = g3 g2 g1 g0 \
mm3 = h3 h2 h1 h0*/ \
__asm movq mm5,mm2 \
__asm punpcklwd mm2,mm3 \
__asm punpckhwd mm5,mm3 \
__asm movq mm3,mm0 \
__asm punpcklwd mm0,mm1 \
__asm punpckhwd mm3,mm1 \
/*mm0 = f1 e1 f0 e0 \
mm3 = f3 e3 f2 e2 \
mm2 = h1 g1 h0 g0 \
mm5 = h3 g3 h2 g2*/ \
__asm movq mm1,mm0 \
__asm punpckldq mm0,mm2 \
__asm punpckhdq mm1,mm2 \
__asm movq mm2,mm3 \
__asm punpckhdq mm3,mm5 \
__asm movq [0x40+_off+BUF],mm0 \
__asm punpckldq mm2,mm5 \
/*mm0 = h0 g0 f0 e0 \
mm1 = h1 g1 f1 e1 \
mm2 = h2 g2 f2 e2 \
mm3 = h3 g3 f3 e3*/ \
__asm movq mm5,[0x10+_off+BUF] \
/*Second 4x4 transpose:*/ \
/*mm4 = a3 a2 a1 a0 \
mm5 = b3 b2 b1 b0 \
mm6 = c3 c2 c1 c0 \
mm7 = d3 d2 d1 d0*/ \
__asm movq mm0,mm6 \
__asm punpcklwd mm6,mm7 \
__asm movq [0x50+_off+BUF],mm1 \
__asm punpckhwd mm0,mm7 \
__asm movq mm7,mm4 \
__asm punpcklwd mm4,mm5 \
__asm movq [0x60+_off+BUF],mm2 \
__asm punpckhwd mm7,mm5 \
/*mm4 = b1 a1 b0 a0 \
mm7 = b3 a3 b2 a2 \
mm6 = d1 c1 d0 c0 \
mm0 = d3 c3 d2 c2*/ \
__asm movq mm5,mm4 \
__asm punpckldq mm4,mm6 \
__asm movq [0x70+_off+BUF],mm3 \
__asm punpckhdq mm5,mm6 \
__asm movq mm6,mm7 \
__asm punpckhdq mm7,mm0 \
__asm punpckldq mm6,mm0 \
/*mm4 = d0 c0 b0 a0 \
mm5 = d1 c1 b1 a1 \
mm6 = d2 c2 b2 a2 \
mm7 = d3 c3 b3 a3*/ \
}
static unsigned oc_int_frag_satd_thresh_mmxext(const unsigned char *_src,
int _src_ystride,const unsigned char *_ref,int _ref_ystride,unsigned _thresh){
OC_ALIGN8(ogg_int16_t buf[64]);
ogg_int16_t *bufp;
unsigned ret1;
unsigned ret2;
bufp=buf;
__asm{
#define SRC esi
#define REF eax
#define SRC_YSTRIDE ecx
#define REF_YSTRIDE edx
#define BUF edi
#define RET eax
#define RET2 edx
mov SRC,_src
mov SRC_YSTRIDE,_src_ystride
mov REF,_ref
mov REF_YSTRIDE,_ref_ystride
mov BUF,bufp
OC_LOAD_SUB_8x4(0x00)
OC_HADAMARD_8x4
OC_TRANSPOSE_4x4x2(0x00)
/*Finish swapping out this 8x4 block to make room for the next one.
mm0...mm3 have been swapped out already.*/
movq [0x00+BUF],mm4
movq [0x10+BUF],mm5
movq [0x20+BUF],mm6
movq [0x30+BUF],mm7
OC_LOAD_SUB_8x4(0x04)
OC_HADAMARD_8x4
OC_TRANSPOSE_4x4x2(0x08)
/*Here the first 4x4 block of output from the last transpose is the second
4x4 block of input for the next transform.
We have cleverly arranged that it already be in the appropriate place, so
we only have to do half the loads.*/
movq mm1,[0x10+BUF]
movq mm2,[0x20+BUF]
movq mm3,[0x30+BUF]
movq mm0,[0x00+BUF]
OC_HADAMARD_ABS_ACCUM_8x4(0x28,0x38)
/*Up to this point, everything fit in 16 bits (8 input + 1 for the
difference + 2*3 for the two 8-point 1-D Hadamards - 1 for the abs - 1
for the factor of two we dropped + 3 for the vertical accumulation).
Now we finally have to promote things to dwords.
We break this part out of OC_HADAMARD_ABS_ACCUM_8x4 to hide the long
latency of pmaddwd by starting the next series of loads now.*/
mov RET2,_thresh
pmaddwd mm0,mm7
movq mm1,[0x50+BUF]
movq mm5,[0x58+BUF]
movq mm4,mm0
movq mm2,[0x60+BUF]
punpckhdq mm0,mm0
movq mm6,[0x68+BUF]
paddd mm4,mm0
movq mm3,[0x70+BUF]
movd RET,mm4
movq mm7,[0x78+BUF]
/*The sums produced by OC_HADAMARD_ABS_ACCUM_8x4 each have an extra 4
added to them, and a factor of two removed; correct the final sum here.*/
lea RET,[RET+RET-32]
movq mm0,[0x40+BUF]
cmp RET,RET2
movq mm4,[0x48+BUF]
jae at_end
OC_HADAMARD_ABS_ACCUM_8x4(0x68,0x78)
pmaddwd mm0,mm7
/*There isn't much to stick in here to hide the latency this time, but the
alternative to pmaddwd is movq->punpcklwd->punpckhwd->paddd, whose
latency is even worse.*/
sub RET,32
movq mm4,mm0
punpckhdq mm0,mm0
paddd mm4,mm0
movd RET2,mm4
lea RET,[RET+RET2*2]
align 16
at_end:
mov ret1,RET
#undef SRC
#undef REF
#undef SRC_YSTRIDE
#undef REF_YSTRIDE
#undef BUF
#undef RET
#undef RET2
}
return ret1;
}
unsigned oc_enc_frag_satd_thresh_mmxext(const unsigned char *_src,
const unsigned char *_ref,int _ystride,unsigned _thresh){
return oc_int_frag_satd_thresh_mmxext(_src,_ystride,_ref,_ystride,_thresh);
}
/*Our internal implementation of frag_copy2 takes an extra stride parameter so
we can share code with oc_enc_frag_satd2_thresh_mmxext().*/
static void oc_int_frag_copy2_mmxext(unsigned char *_dst,int _dst_ystride,
const unsigned char *_src1,const unsigned char *_src2,int _src_ystride){
__asm{
/*Load the first 3 rows.*/
#define DST_YSTRIDE edi
#define SRC_YSTRIDE esi
#define DST eax
#define SRC1 edx
#define SRC2 ecx
mov DST_YSTRIDE,_dst_ystride
mov SRC_YSTRIDE,_src_ystride
mov DST,_dst
mov SRC1,_src1
mov SRC2,_src2
movq mm0,[SRC1]
movq mm1,[SRC2]
movq mm2,[SRC1+SRC_YSTRIDE]
lea SRC1,[SRC1+SRC_YSTRIDE*2]
movq mm3,[SRC2+SRC_YSTRIDE]
lea SRC2,[SRC2+SRC_YSTRIDE*2]
pxor mm7,mm7
movq mm4,[SRC1]
pcmpeqb mm6,mm6
movq mm5,[SRC2]
/*mm7={1}x8.*/
psubb mm7,mm6
/*Start averaging mm0 and mm1 into mm6.*/
movq mm6,mm0
pxor mm0,mm1
pavgb mm6,mm1
/*mm1 is free, start averaging mm3 into mm2 using mm1.*/
movq mm1,mm2
pand mm0,mm7
pavgb mm2,mm3
pxor mm1,mm3
/*mm3 is free.*/
psubb mm6,mm0
/*mm0 is free, start loading the next row.*/
movq mm0,[SRC1+SRC_YSTRIDE]
/*Start averaging mm5 and mm4 using mm3.*/
movq mm3,mm4
/*mm6 [row 0] is done; write it out.*/
movq [DST],mm6
pand mm1,mm7
pavgb mm4,mm5
psubb mm2,mm1
/*mm1 is free, continue loading the next row.*/
movq mm1,[SRC2+SRC_YSTRIDE]
pxor mm3,mm5
lea SRC1,[SRC1+SRC_YSTRIDE*2]
/*mm2 [row 1] is done; write it out.*/
movq [DST+DST_YSTRIDE],mm2
pand mm3,mm7
/*Start loading the next row.*/
movq mm2,[SRC1]
lea DST,[DST+DST_YSTRIDE*2]
psubb mm4,mm3
lea SRC2,[SRC2+SRC_YSTRIDE*2]
/*mm4 [row 2] is done; write it out.*/
movq [DST],mm4
/*Continue loading the next row.*/
movq mm3,[SRC2]
/*Start averaging mm0 and mm1 into mm6.*/
movq mm6,mm0
pxor mm0,mm1
/*Start loading the next row.*/
movq mm4,[SRC1+SRC_YSTRIDE]
pavgb mm6,mm1
/*mm1 is free; start averaging mm3 into mm2 using mm1.*/
movq mm1,mm2
pand mm0,mm7
/*Continue loading the next row.*/
movq mm5,[SRC2+SRC_YSTRIDE]
pavgb mm2,mm3
lea SRC1,[SRC1+SRC_YSTRIDE*2]
pxor mm1,mm3
/*mm3 is free.*/
psubb mm6,mm0
/*mm0 is free, start loading the next row.*/
movq mm0,[SRC1]
/*Start averaging mm5 into mm4 using mm3.*/
movq mm3,mm4
/*mm6 [row 3] is done; write it out.*/
movq [DST+DST_YSTRIDE],mm6
pand mm1,mm7
lea SRC2,[SRC2+SRC_YSTRIDE*2]
pavgb mm4,mm5
lea DST,[DST+DST_YSTRIDE*2]
psubb mm2,mm1
/*mm1 is free; continue loading the next row.*/
movq mm1,[SRC2]
pxor mm3,mm5
/*mm2 [row 4] is done; write it out.*/
movq [DST],mm2
pand mm3,mm7
/*Start loading the next row.*/
movq mm2,[SRC1+SRC_YSTRIDE]
psubb mm4,mm3
/*Start averaging mm0 and mm1 into mm6.*/
movq mm6,mm0
/*Continue loading the next row.*/
movq mm3,[SRC2+SRC_YSTRIDE]
/*mm4 [row 5] is done; write it out.*/
movq [DST+DST_YSTRIDE],mm4
pxor mm0,mm1
pavgb mm6,mm1
/*mm4 is free; start averaging mm3 into mm2 using mm4.*/
movq mm4,mm2
pand mm0,mm7
pavgb mm2,mm3
pxor mm4,mm3
lea DST,[DST+DST_YSTRIDE*2]
psubb mm6,mm0
pand mm4,mm7
/*mm6 [row 6] is done, write it out.*/
movq [DST],mm6
psubb mm2,mm4
/*mm2 [row 7] is done, write it out.*/
movq [DST+DST_YSTRIDE],mm2
#undef SRC1
#undef SRC2
#undef SRC_YSTRIDE
#undef DST_YSTRIDE
#undef DST
}
}
unsigned oc_enc_frag_satd2_thresh_mmxext(const unsigned char *_src,
const unsigned char *_ref1,const unsigned char *_ref2,int _ystride,
unsigned _thresh){
OC_ALIGN8(unsigned char ref[64]);
oc_int_frag_copy2_mmxext(ref,8,_ref1,_ref2,_ystride);
return oc_int_frag_satd_thresh_mmxext(_src,_ystride,ref,8,_thresh);
}
unsigned oc_enc_frag_intra_satd_mmxext(const unsigned char *_src,
int _ystride){
OC_ALIGN8(ogg_int16_t buf[64]);
ogg_int16_t *bufp;
unsigned ret1;
unsigned ret2;
bufp=buf;
__asm{
#define SRC eax
#define SRC4 esi
#define BUF edi
#define RET eax
#define RET_WORD ax
#define RET2 ecx
#define YSTRIDE edx
#define YSTRIDE3 ecx
mov SRC,_src
mov BUF,bufp
mov YSTRIDE,_ystride
/* src4 = src+4*ystride */
lea SRC4,[SRC+YSTRIDE*4]
/* ystride3 = 3*ystride */
lea YSTRIDE3,[YSTRIDE+YSTRIDE*2]
OC_LOAD_8x4(0x00)
OC_HADAMARD_8x4
OC_TRANSPOSE_4x4x2(0x00)
/*Finish swapping out this 8x4 block to make room for the next one.
mm0...mm3 have been swapped out already.*/
movq [0x00+BUF],mm4
movq [0x10+BUF],mm5
movq [0x20+BUF],mm6
movq [0x30+BUF],mm7
OC_LOAD_8x4(0x04)
OC_HADAMARD_8x4
OC_TRANSPOSE_4x4x2(0x08)
/*Here the first 4x4 block of output from the last transpose is the second
4x4 block of input for the next transform.
We have cleverly arranged that it already be in the appropriate place, so
we only have to do half the loads.*/
movq mm1,[0x10+BUF]
movq mm2,[0x20+BUF]
movq mm3,[0x30+BUF]
movq mm0,[0x00+BUF]
/*We split out the stages here so we can save the DC coefficient in the
middle.*/
OC_HADAMARD_AB_8x4
OC_HADAMARD_C_ABS_ACCUM_A_8x4(0x28,0x38)
movd RET,mm1
OC_HADAMARD_C_ABS_ACCUM_B_8x4(0x28,0x38)
/*Up to this point, everything fit in 16 bits (8 input + 1 for the
difference + 2*3 for the two 8-point 1-D Hadamards - 1 for the abs - 1
for the factor of two we dropped + 3 for the vertical accumulation).
Now we finally have to promote things to dwords.
We break this part out of OC_HADAMARD_ABS_ACCUM_8x4 to hide the long
latency of pmaddwd by starting the next series of loads now.*/
pmaddwd mm0,mm7
movq mm1,[0x50+BUF]
movq mm5,[0x58+BUF]
movq mm2,[0x60+BUF]
movq mm4,mm0
movq mm6,[0x68+BUF]
punpckhdq mm0,mm0
movq mm3,[0x70+BUF]
paddd mm4,mm0
movq mm7,[0x78+BUF]
movd RET2,mm4
movq mm0,[0x40+BUF]
movq mm4,[0x48+BUF]
OC_HADAMARD_ABS_ACCUM_8x4(0x68,0x78)
pmaddwd mm0,mm7
/*We assume that the DC coefficient is always positive (which is true,
because the input to the INTRA transform was not a difference).*/
movzx RET,RET_WORD
add RET2,RET2
sub RET2,RET
movq mm4,mm0
punpckhdq mm0,mm0
paddd mm4,mm0
movd RET,mm4
lea RET,[-64+RET2+RET*2]
mov [ret1],RET
#undef SRC
#undef SRC4
#undef BUF
#undef RET
#undef RET_WORD
#undef RET2
#undef YSTRIDE
#undef YSTRIDE3
}
return ret1;
}
void oc_enc_frag_sub_mmx(ogg_int16_t _residue[64],
const unsigned char *_src, const unsigned char *_ref,int _ystride){
int i;
__asm pxor mm7,mm7
for(i=4;i-->0;){
__asm{
#define SRC edx
#define YSTRIDE esi
#define RESIDUE eax
#define REF ecx
mov YSTRIDE,_ystride
mov RESIDUE,_residue
mov SRC,_src
mov REF,_ref
/*mm0=[src]*/
movq mm0,[SRC]
/*mm1=[ref]*/
movq mm1,[REF]
/*mm4=[src+ystride]*/
movq mm4,[SRC+YSTRIDE]
/*mm5=[ref+ystride]*/
movq mm5,[REF+YSTRIDE]
/*Compute [src]-[ref].*/
movq mm2,mm0
punpcklbw mm0,mm7
movq mm3,mm1
punpckhbw mm2,mm7
punpcklbw mm1,mm7
punpckhbw mm3,mm7
psubw mm0,mm1
psubw mm2,mm3
/*Compute [src+ystride]-[ref+ystride].*/
movq mm1,mm4
punpcklbw mm4,mm7
movq mm3,mm5
punpckhbw mm1,mm7
lea SRC,[SRC+YSTRIDE*2]
punpcklbw mm5,mm7
lea REF,[REF+YSTRIDE*2]
punpckhbw mm3,mm7
psubw mm4,mm5
psubw mm1,mm3
/*Write the answer out.*/
movq [RESIDUE+0x00],mm0
movq [RESIDUE+0x08],mm2
movq [RESIDUE+0x10],mm4
movq [RESIDUE+0x18],mm1
lea RESIDUE,[RESIDUE+0x20]
mov _residue,RESIDUE
mov _src,SRC
mov _ref,REF
#undef SRC
#undef YSTRIDE
#undef RESIDUE
#undef REF
}
}
}
void oc_enc_frag_sub_128_mmx(ogg_int16_t _residue[64],
const unsigned char *_src,int _ystride){
__asm{
#define YSTRIDE edx
#define YSTRIDE3 edi
#define RESIDUE ecx
#define SRC eax
mov YSTRIDE,_ystride
mov RESIDUE,_residue
mov SRC,_src
/*mm0=[src]*/
movq mm0,[SRC]
/*mm1=[src+ystride]*/
movq mm1,[SRC+YSTRIDE]
/*mm6={-1}x4*/
pcmpeqw mm6,mm6
/*mm2=[src+2*ystride]*/
movq mm2,[SRC+YSTRIDE*2]
/*[ystride3]=3*[ystride]*/
lea YSTRIDE3,[YSTRIDE+YSTRIDE*2]
/*mm6={1}x4*/
psllw mm6,15
/*mm3=[src+3*ystride]*/
movq mm3,[SRC+YSTRIDE3]
/*mm6={128}x4*/
psrlw mm6,8
/*mm7=0*/
pxor mm7,mm7
/*[src]=[src]+4*[ystride]*/
lea SRC,[SRC+YSTRIDE*4]
/*Compute [src]-128 and [src+ystride]-128*/
movq mm4,mm0
punpcklbw mm0,mm7
movq mm5,mm1
punpckhbw mm4,mm7
psubw mm0,mm6
punpcklbw mm1,mm7
psubw mm4,mm6
punpckhbw mm5,mm7
psubw mm1,mm6
psubw mm5,mm6
/*Write the answer out.*/
movq [RESIDUE+0x00],mm0
movq [RESIDUE+0x08],mm4
movq [RESIDUE+0x10],mm1
movq [RESIDUE+0x18],mm5
/*mm0=[src+4*ystride]*/
movq mm0,[SRC]
/*mm1=[src+5*ystride]*/
movq mm1,[SRC+YSTRIDE]
/*Compute [src+2*ystride]-128 and [src+3*ystride]-128*/
movq mm4,mm2
punpcklbw mm2,mm7
movq mm5,mm3
punpckhbw mm4,mm7
psubw mm2,mm6
punpcklbw mm3,mm7
psubw mm4,mm6
punpckhbw mm5,mm7
psubw mm3,mm6
psubw mm5,mm6
/*Write the answer out.*/
movq [RESIDUE+0x20],mm2
movq [RESIDUE+0x28],mm4
movq [RESIDUE+0x30],mm3
movq [RESIDUE+0x38],mm5
/*Compute [src+6*ystride]-128 and [src+7*ystride]-128*/
movq mm2,[SRC+YSTRIDE*2]
movq mm3,[SRC+YSTRIDE3]
movq mm4,mm0
punpcklbw mm0,mm7
movq mm5,mm1
punpckhbw mm4,mm7
psubw mm0,mm6
punpcklbw mm1,mm7
psubw mm4,mm6
punpckhbw mm5,mm7
psubw mm1,mm6
psubw mm5,mm6
/*Write the answer out.*/
movq [RESIDUE+0x40],mm0
movq [RESIDUE+0x48],mm4
movq [RESIDUE+0x50],mm1
movq [RESIDUE+0x58],mm5
/*Compute [src+6*ystride]-128 and [src+7*ystride]-128*/
movq mm4,mm2
punpcklbw mm2,mm7
movq mm5,mm3
punpckhbw mm4,mm7
psubw mm2,mm6
punpcklbw mm3,mm7
psubw mm4,mm6
punpckhbw mm5,mm7
psubw mm3,mm6
psubw mm5,mm6
/*Write the answer out.*/
movq [RESIDUE+0x60],mm2
movq [RESIDUE+0x68],mm4
movq [RESIDUE+0x70],mm3
movq [RESIDUE+0x78],mm5
#undef YSTRIDE
#undef YSTRIDE3
#undef RESIDUE
#undef SRC
}
}
void oc_enc_frag_copy2_mmxext(unsigned char *_dst,
const unsigned char *_src1,const unsigned char *_src2,int _ystride){
oc_int_frag_copy2_mmxext(_dst,_ystride,_src1,_src2,_ystride);
}
#endif