ref: 6f347d17f173d2a44659a3ce9b8e12dc7777fd32
dir: /codec/decoder/core/x86/intra_pred.asm/
;*!
;* \copy
;* Copyright (c) 2009-2013, Cisco Systems
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;*
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;*
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;* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
;* POSSIBILITY OF SUCH DAMAGE.
;*
;*
;* intra_pred.asm
;*
;* Abstract
;* sse2 and mmx function for intra predict operations(decoder)
;*
;* History
;* 18/09/2009 Created
;* 19/11/2010 Added
;* WelsDecoderI16x16LumaPredDcTop_sse2, WelsDecoderI16x16LumaPredDcNA_sse2,
;* WelsDecoderIChromaPredDcLeft_mmx, WelsDecoderIChromaPredDcTop_sse2
;* and WelsDecoderIChromaPredDcNA_mmx
;*
;*
;*************************************************************************/
%include "asm_inc.asm"
;*******************************************************************************
; Local Data (Read Only)
;*******************************************************************************
%ifdef X86_32_PICASM
SECTION .text align=16
%else
SECTION .rodata align=16
%endif
align 16
sse2_plane_inc_minus dw -7, -6, -5, -4, -3, -2, -1, 0
align 16
sse2_plane_inc dw 1, 2, 3, 4, 5, 6, 7, 8
align 16
sse2_plane_dec dw 8, 7, 6, 5, 4, 3, 2, 1
; for chroma plane mode
sse2_plane_inc_c dw 1, 2, 3, 4
sse2_plane_dec_c dw 4, 3, 2, 1
align 16
sse2_plane_mul_b_c dw -3, -2, -1, 0, 1, 2, 3, 4
align 16
mmx_01bytes: times 16 db 1
align 16
mmx_0x02: dw 0x02, 0x00, 0x00, 0x00
align 16
sse2_dc_0x80: times 16 db 0x80
align 16
sse2_wd_0x02: times 8 dw 0x02
;*******************************************************************************
; macros
;*******************************************************************************
;xmm0, xmm1, xmm2, eax, ecx
;lower 64 bits of xmm0 save the result
%macro SSE2_PRED_H_4X4_TWO_LINE 5
movd %1, [%4-1]
movdqa %3, %1
punpcklbw %1, %3
movdqa %3, %1
punpcklbw %1, %3
;add %4, %5
movd %2, [%4+%5-1]
movdqa %3, %2
punpcklbw %2, %3
movdqa %3, %2
punpcklbw %2, %3
punpckldq %1, %2
%endmacro
%macro LOAD_COLUMN 6
movd %1, [%5]
movd %2, [%5+%6]
punpcklbw %1, %2
lea %5, [%5+2*%6]
movd %3, [%5]
movd %2, [%5+%6]
punpcklbw %3, %2
punpcklwd %1, %3
lea %5, [%5+2*%6]
movd %4, [%5]
movd %2, [%5+%6]
punpcklbw %4, %2
lea %5, [%5+2*%6]
movd %3, [%5]
movd %2, [%5+%6]
lea %5, [%5+2*%6]
punpcklbw %3, %2
punpcklwd %4, %3
punpckhdq %1, %4
%endmacro
%macro SUMW_HORIZON 3
movhlps %2, %1 ; x2 = xx xx xx xx d7 d6 d5 d4
paddw %1, %2 ; x1 = xx xx xx xx d37 d26 d15 d04
punpcklwd %1, %3 ; x1 = d37 d26 d15 d04
movhlps %2, %1 ; x2 = xxxx xxxx d37 d26
paddd %1, %2 ; x1 = xxxx xxxx d1357 d0246
pshuflw %2, %1, 0x4e ; x2 = xxxx xxxx d0246 d1357
paddd %1, %2 ; x1 = xxxx xxxx xxxx d01234567
%endmacro
%macro COPY_16_TIMES 2
movdqa %2, [%1-16]
psrldq %2, 15
pmuludq %2, [pic(mmx_01bytes)]
pshufd %2, %2, 0
%endmacro
%macro COPY_16_TIMESS 3
movdqa %2, [%1+%3-16]
psrldq %2, 15
pmuludq %2, [pic(mmx_01bytes)]
pshufd %2, %2, 0
%endmacro
%macro LOAD_COLUMN_C 6
movd %1, [%5]
movd %2, [%5+%6]
punpcklbw %1,%2
lea %5, [%5+2*%6]
movd %3, [%5]
movd %2, [%5+%6]
punpcklbw %3, %2
punpckhwd %1, %3
lea %5, [%5+2*%6]
%endmacro
%macro LOAD_2_LEFT_AND_ADD 0
lea r0, [r0+2*r1]
movzx r3, byte [r0-0x01]
add r2, r3
movzx r3, byte [r0+r1-0x01]
add r2, r3
%endmacro
;*******************************************************************************
; Code
;*******************************************************************************
SECTION .text
;*******************************************************************************
; void WelsDecoderI4x4LumaPredH_sse2(uint8_t *pPred, const int32_t kiStride)
;
; pPred must align to 16
;*******************************************************************************
WELS_EXTERN WelsDecoderI4x4LumaPredH_sse2
%assign push_num 0
INIT_X86_32_PIC r3
LOAD_2_PARA
SIGN_EXTENSION r1, r1d
movzx r2, byte [r0-1]
movd xmm0, r2d
pmuludq xmm0, [pic(mmx_01bytes)]
movzx r2, byte [r0+r1-1]
movd xmm1, r2d
pmuludq xmm1, [pic(mmx_01bytes)]
lea r0, [r0+r1]
movzx r2, byte [r0+r1-1]
movd xmm2, r2d
pmuludq xmm2, [pic(mmx_01bytes)]
movzx r2, byte [r0+2*r1-1]
movd xmm3, r2d
pmuludq xmm3, [pic(mmx_01bytes)]
sub r0, r1
movd [r0], xmm0
movd [r0+r1], xmm1
lea r0, [r0+2*r1]
movd [r0], xmm2
movd [r0+r1], xmm3
DEINIT_X86_32_PIC
ret
;*******************************************************************************
; void WelsDecoderI16x16LumaPredPlane_sse2(uint8_t *pPred, const int32_t kiStride);
;*******************************************************************************
WELS_EXTERN WelsDecoderI16x16LumaPredPlane_sse2
push r3
push r4
%assign push_num 2
INIT_X86_32_PIC r5
LOAD_2_PARA
PUSH_XMM 8
SIGN_EXTENSION r1, r1d
mov r4, r0 ; save r0 in r4
sub r0, 1
sub r0, r1
;for H
pxor xmm7, xmm7
movq xmm0, [r0]
movdqa xmm5, [pic(sse2_plane_dec)]
punpcklbw xmm0, xmm7
pmullw xmm0, xmm5
movq xmm1, [r0 + 9]
movdqa xmm6, [pic(sse2_plane_inc)]
punpcklbw xmm1, xmm7
pmullw xmm1, xmm6
psubw xmm1, xmm0
SUMW_HORIZON xmm1,xmm0,xmm2
movd r2d, xmm1 ; H += (i + 1) * (top[8 + i] - top[6 - i]);
movsx r2, r2w
imul r2, 5
add r2, 32
sar r2, 6 ; b = (5 * H + 32) >> 6;
SSE2_Copy8Times xmm1, r2d ; xmm1 = b,b,b,b,b,b,b,b
movzx r3, BYTE [r0+16]
sub r0, 3
LOAD_COLUMN xmm0, xmm2, xmm3, xmm4, r0, r1
add r0, 3
movzx r2, BYTE [r0+8*r1]
add r3, r2
shl r3, 4 ; a = (left[15*kiStride] + top[15]) << 4;
sub r0, 3
add r0, r1
LOAD_COLUMN xmm7, xmm2, xmm3, xmm4, r0, r1
pxor xmm4, xmm4
punpckhbw xmm0, xmm4
pmullw xmm0, xmm5
punpckhbw xmm7, xmm4
pmullw xmm7, xmm6
psubw xmm7, xmm0
; Indicate that xmm2 is fully initialized. Its actual value doesn't
; matter in SUMW_HORIZON below, but after being used in LOAD_COLUMN above,
; valgrind thinks that xmm2 contains uninitalized data (if the columns outside
; of the left are uninitialized, such as in DecUT_IntraPrediction), which taints
; r2d below, even if actually isn't based on the uninitialized data.
pxor xmm2, xmm2
SUMW_HORIZON xmm7,xmm0,xmm2
movd r2d, xmm7 ; V
movsx r2, r2w
imul r2, 5
add r2, 32
sar r2, 6 ; c = (5 * V + 32) >> 6;
SSE2_Copy8Times xmm4, r2d ; xmm4 = c,c,c,c,c,c,c,c
mov r0, r4
add r3, 16
imul r2, -7
add r3, r2 ; s = a + 16 + (-7)*c
SSE2_Copy8Times xmm0, r3d ; xmm0 = s,s,s,s,s,s,s,s
xor r2, r2
movdqa xmm5, [pic(sse2_plane_inc_minus)]
get_i16x16_luma_pred_plane_sse2_1:
movdqa xmm2, xmm1
pmullw xmm2, xmm5
paddw xmm2, xmm0
psraw xmm2, 5
movdqa xmm3, xmm1
pmullw xmm3, xmm6
paddw xmm3, xmm0
psraw xmm3, 5
packuswb xmm2, xmm3
movdqa [r0], xmm2
paddw xmm0, xmm4
add r0, r1
inc r2
cmp r2, 16
jnz get_i16x16_luma_pred_plane_sse2_1
POP_XMM
DEINIT_X86_32_PIC
pop r4
pop r3
ret
;*******************************************************************************
; void WelsDecoderI16x16LumaPredH_sse2(uint8_t *pPred, const int32_t kiStride);
;*******************************************************************************
%macro SSE2_PRED_H_16X16_TWO_LINE_DEC 2
lea %1, [%1+%2*2]
COPY_16_TIMES %1, xmm0
movdqa [%1], xmm0
COPY_16_TIMESS %1, xmm0, %2
movdqa [%1+%2], xmm0
%endmacro
WELS_EXTERN WelsDecoderI16x16LumaPredH_sse2
%assign push_num 0
INIT_X86_32_PIC_NOPRESERVE r2
LOAD_2_PARA
SIGN_EXTENSION r1, r1d
COPY_16_TIMES r0, xmm0
movdqa [r0], xmm0
COPY_16_TIMESS r0, xmm0, r1
movdqa [r0+r1], xmm0
SSE2_PRED_H_16X16_TWO_LINE_DEC r0, r1
SSE2_PRED_H_16X16_TWO_LINE_DEC r0, r1
SSE2_PRED_H_16X16_TWO_LINE_DEC r0, r1
SSE2_PRED_H_16X16_TWO_LINE_DEC r0, r1
SSE2_PRED_H_16X16_TWO_LINE_DEC r0, r1
SSE2_PRED_H_16X16_TWO_LINE_DEC r0, r1
SSE2_PRED_H_16X16_TWO_LINE_DEC r0, r1
DEINIT_X86_32_PIC
ret
;*******************************************************************************
; void WelsDecoderI16x16LumaPredV_sse2(uint8_t *pPred, const int32_t kiStride);
;*******************************************************************************
WELS_EXTERN WelsDecoderI16x16LumaPredV_sse2
%assign push_num 0
LOAD_2_PARA
SIGN_EXTENSION r1, r1d
sub r0, r1
movdqa xmm0, [r0]
movdqa [r0+r1], xmm0
lea r0, [r0+2*r1]
movdqa [r0], xmm0
movdqa [r0+r1], xmm0
lea r0, [r0+2*r1]
movdqa [r0], xmm0
movdqa [r0+r1], xmm0
lea r0, [r0+2*r1]
movdqa [r0], xmm0
movdqa [r0+r1], xmm0
lea r0, [r0+2*r1]
movdqa [r0], xmm0
movdqa [r0+r1], xmm0
lea r0, [r0+2*r1]
movdqa [r0], xmm0
movdqa [r0+r1], xmm0
lea r0, [r0+2*r1]
movdqa [r0], xmm0
movdqa [r0+r1], xmm0
lea r0, [r0+2*r1]
movdqa [r0], xmm0
movdqa [r0+r1], xmm0
lea r0, [r0+2*r1]
movdqa [r0], xmm0
ret
;*******************************************************************************
; void WelsDecoderIChromaPredPlane_sse2(uint8_t *pPred, const int32_t kiStride);
;*******************************************************************************
WELS_EXTERN WelsDecoderIChromaPredPlane_sse2
push r3
push r4
%assign push_num 2
INIT_X86_32_PIC r5
LOAD_2_PARA
PUSH_XMM 8
SIGN_EXTENSION r1, r1d
mov r4, r0
sub r0, 1
sub r0, r1
pxor mm7, mm7
movq mm0, [r0]
movq mm5, [pic(sse2_plane_dec_c)]
punpcklbw mm0, mm7
pmullw mm0, mm5
movq mm1, [r0 + 5]
movq mm6, [pic(sse2_plane_inc_c)]
punpcklbw mm1, mm7
pmullw mm1, mm6
psubw mm1, mm0
movq2dq xmm1, mm1
pxor xmm2, xmm2
SUMW_HORIZON xmm1,xmm0,xmm2
movd r2d, xmm1
movsx r2, r2w
imul r2, 17
add r2, 16
sar r2, 5 ; b = (17 * H + 16) >> 5;
SSE2_Copy8Times xmm1, r2d ; mm1 = b,b,b,b,b,b,b,b
movzx r3, BYTE [r0+8]
sub r0, 3
LOAD_COLUMN_C mm0, mm2, mm3, mm4, r0, r1
add r0, 3
movzx r2, BYTE [r0+4*r1]
add r3, r2
shl r3, 4 ; a = (left[7*kiStride] + top[7]) << 4;
sub r0, 3
add r0, r1
LOAD_COLUMN_C mm7, mm2, mm3, mm4, r0, r1
pxor mm4, mm4
punpckhbw mm0, mm4
pmullw mm0, mm5
punpckhbw mm7, mm4
pmullw mm7, mm6
psubw mm7, mm0
movq2dq xmm7, mm7
pxor xmm2, xmm2
SUMW_HORIZON xmm7,xmm0,xmm2
movd r2d, xmm7 ; V
movsx r2, r2w
imul r2, 17
add r2, 16
sar r2, 5 ; c = (17 * V + 16) >> 5;
SSE2_Copy8Times xmm4, r2d ; mm4 = c,c,c,c,c,c,c,c
mov r0, r4
add r3, 16
imul r2, -3
add r3, r2 ; s = a + 16 + (-3)*c
SSE2_Copy8Times xmm0, r3d ; xmm0 = s,s,s,s,s,s,s,s
xor r2, r2
movdqa xmm5, [pic(sse2_plane_mul_b_c)]
get_i_chroma_pred_plane_sse2_1:
movdqa xmm2, xmm1
pmullw xmm2, xmm5
paddw xmm2, xmm0
psraw xmm2, 5
packuswb xmm2, xmm2
movq [r0], xmm2
paddw xmm0, xmm4
add r0, r1
inc r2
cmp r2, 8
jnz get_i_chroma_pred_plane_sse2_1
POP_XMM
DEINIT_X86_32_PIC
pop r4
pop r3
WELSEMMS
ret
;*******************************************************************************
; 0 |1 |2 |3 |4 |
; 6 |7 |8 |9 |10|
; 11|12|13|14|15|
; 16|17|18|19|20|
; 21|22|23|24|25|
; 7 is the start pixel of current 4x4 block
; pPred[7] = ([6]+[0]*2+[1]+2)/4
;
; void WelsDecoderI4x4LumaPredDDR_mmx(uint8_t *pPred, const int32_t kiStride)
;
;*******************************************************************************
WELS_EXTERN WelsDecoderI4x4LumaPredDDR_mmx
%assign push_num 0
INIT_X86_32_PIC r3
LOAD_2_PARA
SIGN_EXTENSION r1, r1d
mov r2, r0
movq mm1,[r2+r1-8] ;get value of 11,decreasing 8 is trying to improve the performance of movq mm1[8] = 11
movq mm2,[r2-8] ;get value of 6 mm2[8] = 6
sub r2, r1 ;mov eax to above line of current block(postion of 1)
punpckhbw mm2,[r2-8] ;mm2[8](high 8th byte of mm2) = [0](value of 0), mm2[7]= [6]
movd mm3,[r2] ;get value 1, mm3[1] = [1],mm3[2]=[2],mm3[3]=[3]
punpckhwd mm1,mm2 ;mm1[8]=[0],mm1[7]=[6],mm1[6]=[11]
psllq mm3,18h ;mm3[5]=[1]
psrlq mm1,28h ;mm1[3]=[0],mm1[2]=[6],mm1[1]=[11]
por mm3,mm1 ;mm3[6]=[3],mm3[5]=[2],mm3[4]=[1],mm3[3]=[0],mm3[2]=[6],mm3[1]=[11]
movq mm1,mm3 ;mm1[6]=[3],mm1[5]=[2],mm1[4]=[1],mm1[3]=[0],mm1[2]=[6],mm1[1]=[11]
lea r2,[r2+r1*2-8h] ;set eax point to 12
movq mm4,[r2+r1] ;get value of 16, mm4[8]=[16]
psllq mm3,8 ;mm3[7]=[3],mm3[6]=[2],mm3[5]=[1],mm3[4]=[0],mm3[3]=[6],mm3[2]=[11],mm3[1]=0
psrlq mm4,38h ;mm4[1]=[16]
por mm3,mm4 ;mm3[7]=[3],mm3[6]=[2],mm3[5]=[1],mm3[4]=[0],mm3[3]=[6],mm3[2]=[11],mm3[1]=[16]
movq mm2,mm3 ;mm2[7]=[3],mm2[6]=[2],mm2[5]=[1],mm2[4]=[0],mm2[3]=[6],mm2[2]=[11],mm2[1]=[16]
movq mm4,[r2+r1*2] ;mm4[8]=[21]
psllq mm3,8 ;mm3[8]=[3],mm3[7]=[2],mm3[6]=[1],mm3[5]=[0],mm3[4]=[6],mm3[3]=[11],mm3[2]=[16],mm3[1]=0
psrlq mm4,38h ;mm4[1]=[21]
por mm3,mm4 ;mm3[8]=[3],mm3[7]=[2],mm3[6]=[1],mm3[5]=[0],mm3[4]=[6],mm3[3]=[11],mm3[2]=[16],mm3[1]=[21]
movq mm4,mm3 ;mm4[8]=[3],mm4[7]=[2],mm4[6]=[1],mm4[5]=[0],mm4[4]=[6],mm4[3]=[11],mm4[2]=[16],mm4[1]=[21]
pavgb mm3,mm1 ;mm3=([11]+[21]+1)/2
pxor mm1,mm4 ;find odd value in the lowest bit of each byte
pand mm1,[pic(mmx_01bytes)] ;set the odd bit
psubusb mm3,mm1 ;decrease 1 from odd bytes
pavgb mm2,mm3 ;mm2=(([11]+[21]+1)/2+1+[16])/2
lea r0,[r0+r1]
movd [r0+2*r1],mm2
sub r0,r1
psrlq mm2,8
movd [r0+2*r1],mm2
psrlq mm2,8
movd [r0+r1],mm2
psrlq mm2,8
movd [r0],mm2
DEINIT_X86_32_PIC
WELSEMMS
ret
;*******************************************************************************
; void WelsDecoderIChromaPredH_mmx(uint8_t *pPred, const int32_t kiStride)
; copy 8 pixel of 8 line from left
;*******************************************************************************
%macro MMX_PRED_H_8X8_ONE_LINE 4
movq %1, [%3-8]
psrlq %1, 38h
pmullw %1, [pic(mmx_01bytes)]
pshufw %1, %1, 0
movq [%4], %1
%endmacro
%macro MMX_PRED_H_8X8_ONE_LINEE 4
movq %1, [%3+r1-8]
psrlq %1, 38h
pmullw %1, [pic(mmx_01bytes)]
pshufw %1, %1, 0
movq [%4], %1
%endmacro
WELS_EXTERN WelsDecoderIChromaPredH_mmx
%assign push_num 0
INIT_X86_32_PIC r3
LOAD_2_PARA
SIGN_EXTENSION r1, r1d
mov r2, r0
movq mm0, [r2-8]
psrlq mm0, 38h
pmullw mm0, [pic(mmx_01bytes)]
pshufw mm0, mm0, 0
movq [r0], mm0
MMX_PRED_H_8X8_ONE_LINEE mm0, mm1, r2, r0+r1
lea r2, [r2+r1*2]
MMX_PRED_H_8X8_ONE_LINE mm0, mm1, r2, r0+2*r1
lea r0, [r0+2*r1]
MMX_PRED_H_8X8_ONE_LINEE mm0, mm1, r2, r0+r1
lea r2, [r2+r1*2]
MMX_PRED_H_8X8_ONE_LINE mm0, mm1, r2, r0+2*r1
lea r0, [r0+2*r1]
MMX_PRED_H_8X8_ONE_LINEE mm0, mm1, r2, r0+r1
lea r2, [r2+r1*2]
MMX_PRED_H_8X8_ONE_LINE mm0, mm1, r2, r0+2*r1
lea r0, [r0+2*r1]
MMX_PRED_H_8X8_ONE_LINEE mm0, mm1, r2, r0+r1
DEINIT_X86_32_PIC
WELSEMMS
ret
;*******************************************************************************
; void WelsDecoderIChromaPredV_mmx(uint8_t *pPred, const int32_t kiStride)
; copy 8 pixels from top 8 pixels
;*******************************************************************************
WELS_EXTERN WelsDecoderIChromaPredV_mmx
%assign push_num 0
LOAD_2_PARA
SIGN_EXTENSION r1, r1d
sub r0, r1
movq mm0, [r0]
movq [r0+r1], mm0
movq [r0+2*r1], mm0
lea r0, [r0+2*r1]
movq [r0+r1], mm0
movq [r0+2*r1], mm0
lea r0, [r0+2*r1]
movq [r0+r1], mm0
movq [r0+2*r1], mm0
lea r0, [r0+2*r1]
movq [r0+r1], mm0
movq [r0+2*r1], mm0
WELSEMMS
ret
;*******************************************************************************
; lt|t0|t1|t2|t3|
; l0|
; l1|
; l2|
; l3|
; t3 will never been used
; destination:
; |a |b |c |d |
; |e |f |a |b |
; |g |h |e |f |
; |i |j |g |h |
; a = (1 + lt + l0)>>1
; e = (1 + l0 + l1)>>1
; g = (1 + l1 + l2)>>1
; i = (1 + l2 + l3)>>1
; d = (2 + t0 + (t1<<1) + t2)>>2
; c = (2 + lt + (t0<<1) + t1)>>2
; b = (2 + l0 + (lt<<1) + t0)>>2
; f = (2 + l1 + (l0<<1) + lt)>>2
; h = (2 + l2 + (l1<<1) + l0)>>2
; j = (2 + l3 + (l2<<1) + l1)>>2
; [b a f e h g j i] + [d c b a] --> mov to memory
;
; void WelsDecoderI4x4LumaPredHD_mmx(uint8_t *pPred, const int32_t kiStride)
;*******************************************************************************
WELS_EXTERN WelsDecoderI4x4LumaPredHD_mmx
%assign push_num 0
INIT_X86_32_PIC r3
LOAD_2_PARA
SIGN_EXTENSION r1, r1d
mov r2, r0
sub r2, r1
movd mm0, [r2-1] ; mm0 = [xx xx xx xx t2 t1 t0 lt]
psllq mm0, 20h ; mm0 = [t2 t1 t0 lt xx xx xx xx]
movd mm1, [r2+2*r1-4]
punpcklbw mm1, [r2+r1-4] ; mm1[7] = l0, mm1[6] = l1
lea r2, [r2+2*r1]
movd mm2, [r2+2*r1-4]
punpcklbw mm2, [r2+r1-4] ; mm2[7] = l2, mm2[6] = l3
punpckhwd mm2, mm1 ; mm2 = [l0 l1 l2 l3 xx xx xx xx]
psrlq mm2, 20h
pxor mm0, mm2 ; mm0 = [t2 t1 t0 lt l0 l1 l2 l3]
movq mm1, mm0
psrlq mm1, 10h ; mm1 = [xx xx t2 t1 t0 lt l0 l1]
movq mm2, mm0
psrlq mm2, 8h ; mm2 = [xx t2 t1 t0 lt l0 l1 l2]
movq mm3, mm2
movq mm4, mm1
pavgb mm1, mm0
pxor mm4, mm0 ; find odd value in the lowest bit of each byte
pand mm4, [pic(mmx_01bytes)] ; set the odd bit
psubusb mm1, mm4 ; decrease 1 from odd bytes
pavgb mm2, mm1 ; mm2 = [xx xx d c b f h j]
movq mm4, mm0
pavgb mm3, mm4 ; mm3 = [xx xx xx xx a e g i]
punpcklbw mm3, mm2 ; mm3 = [b a f e h g j i]
psrlq mm2, 20h
psllq mm2, 30h ; mm2 = [d c 0 0 0 0 0 0]
movq mm4, mm3
psrlq mm4, 10h ; mm4 = [0 0 b a f e h j]
pxor mm2, mm4 ; mm2 = [d c b a xx xx xx xx]
psrlq mm2, 20h ; mm2 = [xx xx xx xx d c b a]
movd [r0], mm2
lea r0, [r0+r1]
movd [r0+2*r1], mm3
sub r0, r1
psrlq mm3, 10h
movd [r0+2*r1], mm3
psrlq mm3, 10h
movd [r0+r1], mm3
DEINIT_X86_32_PIC
WELSEMMS
ret
;*******************************************************************************
; lt|t0|t1|t2|t3|
; l0|
; l1|
; l2|
; l3|
; t3 will never been used
; destination:
; |a |b |c |d |
; |c |d |e |f |
; |e |f |g |g |
; |g |g |g |g |
; a = (1 + l0 + l1)>>1
; c = (1 + l1 + l2)>>1
; e = (1 + l2 + l3)>>1
; g = l3
; b = (2 + l0 + (l1<<1) + l2)>>2
; d = (2 + l1 + (l2<<1) + l3)>>2
; f = (2 + l2 + (l3<<1) + l3)>>2
; [g g f e d c b a] + [g g g g] --> mov to memory
;
; void WelsDecoderI4x4LumaPredHU_mmx(uint8_t *pPred, const int32_t kiStride)
;*******************************************************************************
WELS_EXTERN WelsDecoderI4x4LumaPredHU_mmx
%assign push_num 0
INIT_X86_32_PIC r3
LOAD_2_PARA
SIGN_EXTENSION r1, r1d
mov r2, r0
movd mm0, [r2-4] ; mm0[3] = l0
punpcklbw mm0, [r2+r1-4] ; mm0[7] = l1, mm0[6] = l0
lea r2, [r2+2*r1]
movd mm2, [r2-4] ; mm2[3] = l2
movd mm4, [r2+r1-4] ; mm4[3] = l3
punpcklbw mm2, mm4
punpckhwd mm0, mm2 ; mm0 = [l3 l2 l1 l0 xx xx xx xx]
psrlq mm4, 18h
psllq mm4, 38h ; mm4 = [l3 xx xx xx xx xx xx xx]
psrlq mm0, 8h
pxor mm0, mm4 ; mm0 = [l3 l3 l2 l1 l0 xx xx xx]
movq mm1, mm0
psllq mm1, 8h ; mm1 = [l3 l2 l1 l0 xx xx xx xx]
movq mm3, mm1 ; mm3 = [l3 l2 l1 l0 xx xx xx xx]
pavgb mm1, mm0 ; mm1 = [g e c a xx xx xx xx]
movq mm2, mm0
psllq mm2, 10h ; mm2 = [l2 l1 l0 xx xx xx xx xx]
movq mm5, mm2
pavgb mm2, mm0
pxor mm5, mm0 ; find odd value in the lowest bit of each byte
pand mm5, [pic(mmx_01bytes)] ; set the odd bit
psubusb mm2, mm5 ; decrease 1 from odd bytes
pavgb mm2, mm3 ; mm2 = [f d b xx xx xx xx xx]
psrlq mm2, 8h
pxor mm2, mm4 ; mm2 = [g f d b xx xx xx xx]
punpckhbw mm1, mm2 ; mm1 = [g g f e d c b a]
punpckhbw mm4, mm4 ; mm4 = [g g xx xx xx xx xx xx]
punpckhbw mm4, mm4 ; mm4 = [g g g g xx xx xx xx]
psrlq mm4, 20h
lea r0, [r0+r1]
movd [r0+2*r1], mm4
sub r0, r1
movd [r0], mm1
psrlq mm1, 10h
movd [r0+r1], mm1
psrlq mm1, 10h
movd [r0+2*r1], mm1
DEINIT_X86_32_PIC
WELSEMMS
ret
;*******************************************************************************
; lt|t0|t1|t2|t3|
; l0|
; l1|
; l2|
; l3|
; l3 will never been used
; destination:
; |a |b |c |d |
; |e |f |g |h |
; |i |a |b |c |
; |j |e |f |g |
; a = (1 + lt + t0)>>1
; b = (1 + t0 + t1)>>1
; c = (1 + t1 + t2)>>1
; d = (1 + t2 + t3)>>1
; e = (2 + l0 + (lt<<1) + t0)>>2
; f = (2 + lt + (t0<<1) + t1)>>2
; g = (2 + t0 + (t1<<1) + t2)>>2
; h = (2 + t1 + (t2<<1) + t3)>>2
; i = (2 + lt + (l0<<1) + l1)>>2
; j = (2 + l0 + (l1<<1) + l2)>>2
;
; void WelsDecoderI4x4LumaPredVR_mmx(uint8_t *pPred, const int32_t kiStride)
;*******************************************************************************
WELS_EXTERN WelsDecoderI4x4LumaPredVR_mmx
%assign push_num 0
INIT_X86_32_PIC r3
LOAD_2_PARA
SIGN_EXTENSION r1, r1d
mov r2, r0
sub r2, r1
movq mm0, [r2-1] ; mm0 = [xx xx xx t3 t2 t1 t0 lt]
psllq mm0, 18h ; mm0 = [t3 t2 t1 t0 lt xx xx xx]
movd mm1, [r2+2*r1-4]
punpcklbw mm1, [r2+r1-4] ; mm1[7] = l0, mm1[6] = l1
lea r2, [r2+2*r1]
movq mm2, [r2+r1-8] ; mm2[7] = l2
punpckhwd mm2, mm1 ; mm2 = [l0 l1 l2 xx xx xx xx xx]
psrlq mm2, 28h
pxor mm0, mm2 ; mm0 = [t3 t2 t1 t0 lt l0 l1 l2]
movq mm1, mm0
psllq mm1, 8h ; mm1 = [t2 t1 t0 lt l0 l1 l2 xx]
pavgb mm1, mm0 ; mm1 = [d c b a xx xx xx xx]
movq mm2, mm0
psllq mm2, 10h ; mm2 = [t1 t0 lt l0 l1 l2 xx xx]
movq mm3, mm2
pavgb mm2, mm0
pxor mm3, mm0 ; find odd value in the lowest bit of each byte
pand mm3, [pic(mmx_01bytes)] ; set the odd bit
psubusb mm2, mm3 ; decrease 1 from odd bytes
movq mm3, mm0
psllq mm3, 8h ; mm3 = [t2 t1 t0 lt l0 l1 l2 xx]
pavgb mm3, mm2 ; mm3 = [h g f e i j xx xx]
movq mm2, mm3
psrlq mm1, 20h ; mm1 = [xx xx xx xx d c b a]
movd [r0], mm1
psrlq mm2, 20h ; mm2 = [xx xx xx xx h g f e]
movd [r0+r1], mm2
movq mm4, mm3
psllq mm4, 20h
psrlq mm4, 38h ; mm4 = [xx xx xx xx xx xx xx i]
movq mm5, mm3
psllq mm5, 28h
psrlq mm5, 38h ; mm5 = [xx xx xx xx xx xx xx j]
psllq mm1, 8h
pxor mm4, mm1 ; mm4 = [xx xx xx xx c b a i]
movd [r0+2*r1], mm4
psllq mm2, 8h
pxor mm5, mm2 ; mm5 = [xx xx xx xx g f e j]
lea r0, [r0+2*r1]
movd [r0+r1], mm5
DEINIT_X86_32_PIC
WELSEMMS
ret
;*******************************************************************************
; lt|t0|t1|t2|t3|t4|t5|t6|t7
; l0|
; l1|
; l2|
; l3|
; lt,t0,t1,t2,t3 will never been used
; destination:
; |a |b |c |d |
; |b |c |d |e |
; |c |d |e |f |
; |d |e |f |g |
; a = (2 + t0 + t2 + (t1<<1))>>2
; b = (2 + t1 + t3 + (t2<<1))>>2
; c = (2 + t2 + t4 + (t3<<1))>>2
; d = (2 + t3 + t5 + (t4<<1))>>2
; e = (2 + t4 + t6 + (t5<<1))>>2
; f = (2 + t5 + t7 + (t6<<1))>>2
; g = (2 + t6 + t7 + (t7<<1))>>2
; [g f e d c b a] --> mov to memory
;
; void WelsDecoderI4x4LumaPredDDL_mmx(uint8_t *pPred, const int32_t kiStride)
;*******************************************************************************
WELS_EXTERN WelsDecoderI4x4LumaPredDDL_mmx
%assign push_num 0
INIT_X86_32_PIC r3
LOAD_2_PARA
SIGN_EXTENSION r1, r1d
mov r2, r0
sub r2, r1
movq mm0, [r2] ; mm0 = [t7 t6 t5 t4 t3 t2 t1 t0]
movq mm1, mm0
movq mm2, mm0
movq mm3, mm0
psrlq mm3, 38h
psllq mm3, 38h ; mm3 = [t7 xx xx xx xx xx xx xx]
psllq mm1, 8h ; mm1 = [t6 t5 t4 t3 t2 t1 t0 xx]
psrlq mm2, 8h
pxor mm2, mm3 ; mm2 = [t7 t7 t6 t5 t4 t3 t2 t1]
movq mm3, mm1
pavgb mm1, mm2
pxor mm3, mm2 ; find odd value in the lowest bit of each byte
pand mm3, [pic(mmx_01bytes)] ; set the odd bit
psubusb mm1, mm3 ; decrease 1 from odd bytes
pavgb mm0, mm1 ; mm0 = [g f e d c b a xx]
psrlq mm0, 8h
movd [r0], mm0
psrlq mm0, 8h
movd [r0+r1], mm0
psrlq mm0, 8h
movd [r0+2*r1], mm0
psrlq mm0, 8h
lea r0, [r0+2*r1]
movd [r0+r1], mm0
DEINIT_X86_32_PIC
WELSEMMS
ret
;*******************************************************************************
; lt|t0|t1|t2|t3|t4|t5|t6|t7
; l0|
; l1|
; l2|
; l3|
; lt,t0,t1,t2,t3 will never been used
; destination:
; |a |b |c |d |
; |e |f |g |h |
; |b |c |d |i |
; |f |g |h |j |
; a = (1 + t0 + t1)>>1
; b = (1 + t1 + t2)>>1
; c = (1 + t2 + t3)>>1
; d = (1 + t3 + t4)>>1
; i = (1 + t4 + t5)>>1
; e = (2 + t0 + (t1<<1) + t2)>>2
; f = (2 + t1 + (t2<<1) + t3)>>2
; g = (2 + t2 + (t3<<1) + t4)>>2
; h = (2 + t3 + (t4<<1) + t5)>>2
; j = (2 + t4 + (t5<<1) + t6)>>2
; [i d c b a] + [j h g f e] --> mov to memory
;
; void WelsDecoderI4x4LumaPredVL_mmx(uint8_t *pPred, const int32_t kiStride)
;*******************************************************************************
WELS_EXTERN WelsDecoderI4x4LumaPredVL_mmx
%assign push_num 0
INIT_X86_32_PIC r3
LOAD_2_PARA
SIGN_EXTENSION r1, r1d
mov r2, r0
sub r2, r1
movq mm0, [r2] ; mm0 = [t7 t6 t5 t4 t3 t2 t1 t0]
movq mm1, mm0
movq mm2, mm0
psrlq mm1, 8h ; mm1 = [xx t7 t6 t5 t4 t3 t2 t1]
psrlq mm2, 10h ; mm2 = [xx xx t7 t6 t5 t4 t3 t2]
movq mm3, mm1
pavgb mm3, mm0 ; mm3 = [xx xx xx i d c b a]
movq mm4, mm2
pavgb mm2, mm0
pxor mm4, mm0 ; find odd value in the lowest bit of each byte
pand mm4, [pic(mmx_01bytes)] ; set the odd bit
psubusb mm2, mm4 ; decrease 1 from odd bytes
pavgb mm2, mm1 ; mm2 = [xx xx xx j h g f e]
movd [r0], mm3
psrlq mm3, 8h
movd [r0+2*r1], mm3
movd [r0+r1], mm2
psrlq mm2, 8h
lea r0, [r0+2*r1]
movd [r0+r1], mm2
DEINIT_X86_32_PIC
WELSEMMS
ret
;*******************************************************************************
;
; void WelsDecoderIChromaPredDc_sse2(uint8_t *pPred, const int32_t kiStride)
;*******************************************************************************
WELS_EXTERN WelsDecoderIChromaPredDc_sse2
push r3
push r4
%assign push_num 2
INIT_X86_32_PIC r5
LOAD_2_PARA
SIGN_EXTENSION r1, r1d
mov r4, r0
sub r0, r1
movq mm0, [r0]
movzx r2, byte [r0+r1-0x01] ; l1
lea r0, [r0+2*r1]
movzx r3, byte [r0-0x01] ; l2
add r2, r3
movzx r3, byte [r0+r1-0x01] ; l3
add r2, r3
lea r0, [r0+2*r1]
movzx r3, byte [r0-0x01] ; l4
add r2, r3
movd mm1, r2d ; mm1 = l1+l2+l3+l4
movzx r2, byte [r0+r1-0x01] ; l5
lea r0, [r0+2*r1]
movzx r3, byte [r0-0x01] ; l6
add r2, r3
movzx r3, byte [r0+r1-0x01] ; l7
add r2, r3
lea r0, [r0+2*r1]
movzx r3, byte [r0-0x01] ; l8
add r2, r3
movd mm2, r2d ; mm2 = l5+l6+l7+l8
movq mm3, mm0
psrlq mm0, 0x20
psllq mm3, 0x20
psrlq mm3, 0x20
pxor mm4, mm4
psadbw mm0, mm4
psadbw mm3, mm4 ; sum1 = mm3+mm1, sum2 = mm0, sum3 = mm2
paddq mm3, mm1
movq mm1, mm2
paddq mm1, mm0; ; sum1 = mm3, sum2 = mm0, sum3 = mm2, sum4 = mm1
movq mm4, [pic(mmx_0x02)]
paddq mm0, mm4
psrlq mm0, 0x02
paddq mm2, mm4
psrlq mm2, 0x02
paddq mm3, mm4
paddq mm3, mm4
psrlq mm3, 0x03
paddq mm1, mm4
paddq mm1, mm4
psrlq mm1, 0x03
pmuludq mm0, [pic(mmx_01bytes)]
pmuludq mm3, [pic(mmx_01bytes)]
psllq mm0, 0x20
pxor mm0, mm3 ; mm0 = m_up
pmuludq mm2, [pic(mmx_01bytes)]
pmuludq mm1, [pic(mmx_01bytes)]
psllq mm1, 0x20
pxor mm1, mm2 ; mm2 = m_down
movq [r4], mm0
movq [r4+r1], mm0
movq [r4+2*r1], mm0
lea r4, [r4+2*r1]
movq [r4+r1], mm0
movq [r4+2*r1], mm1
lea r4, [r4+2*r1]
movq [r4+r1], mm1
movq [r4+2*r1], mm1
lea r4, [r4+2*r1]
movq [r4+r1], mm1
DEINIT_X86_32_PIC
pop r4
pop r3
WELSEMMS
ret
;*******************************************************************************
;
; void WelsDecoderI16x16LumaPredDc_sse2(uint8_t *pPred, const int32_t kiStride)
;*******************************************************************************
WELS_EXTERN WelsDecoderI16x16LumaPredDc_sse2
push r3
push r4
%assign push_num 2
INIT_X86_32_PIC r5
LOAD_2_PARA
SIGN_EXTENSION r1, r1d
mov r4, r0
sub r0, r1
movdqa xmm0, [r0] ; read one row
pxor xmm1, xmm1
psadbw xmm0, xmm1
movdqa xmm1, xmm0
psrldq xmm1, 0x08
pslldq xmm0, 0x08
psrldq xmm0, 0x08
paddw xmm0, xmm1
movzx r2, byte [r0+r1-0x01]
movzx r3, byte [r0+2*r1-0x01]
add r2, r3
lea r0, [r0+r1]
LOAD_2_LEFT_AND_ADD
LOAD_2_LEFT_AND_ADD
LOAD_2_LEFT_AND_ADD
LOAD_2_LEFT_AND_ADD
LOAD_2_LEFT_AND_ADD
LOAD_2_LEFT_AND_ADD
LOAD_2_LEFT_AND_ADD
add r2, 0x10
movd xmm1, r2d
paddw xmm0, xmm1
psrld xmm0, 0x05
pmuludq xmm0, [pic(mmx_01bytes)]
pshufd xmm0, xmm0, 0
movdqa [r4], xmm0
movdqa [r4+r1], xmm0
movdqa [r4+2*r1], xmm0
lea r4, [r4+2*r1]
movdqa [r4+r1], xmm0
movdqa [r4+2*r1], xmm0
lea r4, [r4+2*r1]
movdqa [r4+r1], xmm0
movdqa [r4+2*r1], xmm0
lea r4, [r4+2*r1]
movdqa [r4+r1], xmm0
movdqa [r4+2*r1], xmm0
lea r4, [r4+2*r1]
movdqa [r4+r1], xmm0
movdqa [r4+2*r1], xmm0
lea r4, [r4+2*r1]
movdqa [r4+r1], xmm0
movdqa [r4+2*r1], xmm0
lea r4, [r4+2*r1]
movdqa [r4+r1], xmm0
movdqa [r4+2*r1], xmm0
lea r4, [r4+2*r1]
movdqa [r4+r1], xmm0
DEINIT_X86_32_PIC
pop r4
pop r3
ret
;*******************************************************************************
; for intra prediction as follows, 11/19/2010
;*******************************************************************************
;*******************************************************************************
; void WelsDecoderI16x16LumaPredDcTop_sse2(uint8_t *pPred, const int32_t kiStride)
;*******************************************************************************
WELS_EXTERN WelsDecoderI16x16LumaPredDcTop_sse2
%assign push_num 0
LOAD_2_PARA
PUSH_XMM 8
SIGN_EXTENSION r1, r1d
mov r2, r0
sub r2, r1
movdqa xmm0, [r2] ; pPred-kiStride, top line
pxor xmm7, xmm7
psadbw xmm0, xmm7
movdqa xmm1, xmm0
psrldq xmm1, 8
paddw xmm0, xmm1
xor r2, r2
movd r2d, xmm0
;movdqa xmm1, xmm0
;punpcklbw xmm0, xmm7
;punpckhbw xmm1, xmm7
;paddw xmm0, xmm1 ; (ub.max(ff) << 4) will not excceed of uw, so can perform it in unit of unsigned word scope
;pshufd xmm1, xmm0, 04eh ; 01001110, w3w2w1w0,w7w6w5w4
;paddw xmm0, xmm1 ; w3+7 w2+6 w1+5 w0+4 w3+7 w2+6 w1+5 w0+4
;pshufd xmm1, xmm0, 0b1h ; 10110001, w1+5 w0+4 w3+7 w2+6 w1+5 w0+4 w3+7 w2+6
;paddw xmm0, xmm1 ; w_o w_e w_o w_e w_o w_e w_o w_e (w_o=1+3+5+7, w_e=0+2+4+6)
;pshuflw xmm1, xmm0, 0b1h ; 10110001
;paddw xmm0, xmm1 ; sum in word unit (x8)
;xor r3, r3
;movd r3d, xmm0
;and edx, 0ffffh
add r2, 8
sar r2, 4
SSE2_Copy16Times xmm1, r2d
;mov dh, dl
;mov r2, edx
;shl r2, 010h
;or edx, r2
;movd xmm1, edx
;pshufd xmm0, xmm1, 00h
;movdqa xmm1, xmm0
movdqa xmm0, xmm1
lea r2, [2*r1+r1] ; 3*kiStride
movdqa [r0], xmm0
movdqa [r0+r1], xmm1
movdqa [r0+2*r1], xmm0
movdqa [r0+r2], xmm1
lea r0, [r0+4*r1]
movdqa [r0], xmm0
movdqa [r0+r1], xmm1
movdqa [r0+2*r1], xmm0
movdqa [r0+r2], xmm1
lea r0, [r0+4*r1]
movdqa [r0], xmm0
movdqa [r0+r1], xmm1
movdqa [r0+2*r1], xmm0
movdqa [r0+r2], xmm1
lea r0, [r0+4*r1]
movdqa [r0], xmm0
movdqa [r0+r1], xmm1
movdqa [r0+2*r1], xmm0
movdqa [r0+r2], xmm1
POP_XMM
ret
;*******************************************************************************
; void WelsDecoderI16x16LumaPredDcNA_sse2(uint8_t *pPred, const int32_t kiStride)
;*******************************************************************************
WELS_EXTERN WelsDecoderI16x16LumaPredDcNA_sse2
%assign push_num 0
INIT_X86_32_PIC r3
LOAD_2_PARA
SIGN_EXTENSION r1, r1d
lea r2, [2*r1+r1] ; 3*kiStride
movdqa xmm0, [pic(sse2_dc_0x80)]
movdqa xmm1, xmm0
movdqa [r0], xmm0
movdqa [r0+r1], xmm1
movdqa [r0+2*r1], xmm0
movdqa [r0+r2], xmm1
lea r0, [r0+4*r1]
movdqa [r0], xmm0
movdqa [r0+r1], xmm1
movdqa [r0+2*r1], xmm0
movdqa [r0+r2], xmm1
lea r0, [r0+4*r1]
movdqa [r0], xmm0
movdqa [r0+r1], xmm1
movdqa [r0+2*r1], xmm0
movdqa [r0+r2], xmm1
lea r0, [r0+4*r1]
movdqa [r0], xmm0
movdqa [r0+r1], xmm1
movdqa [r0+2*r1], xmm0
movdqa [r0+r2], xmm1
DEINIT_X86_32_PIC
ret
;*******************************************************************************
; void WelsDecoderIChromaPredDcLeft_mmx(uint8_t *pPred, const int32_t kiStride)
;*******************************************************************************
WELS_EXTERN WelsDecoderIChromaPredDcLeft_mmx
push r3
push r4
%assign push_num 2
LOAD_2_PARA
SIGN_EXTENSION r1, r1d
mov r4, r0
; for left
dec r0
xor r2, r2
xor r3, r3
movzx r2, byte [r0]
movzx r3, byte [r0+r1]
add r2, r3
lea r0, [r0+2*r1]
movzx r3, byte [r0]
add r2, r3
movzx r3, byte [r0+r1]
add r2, r3
add r2, 02h
sar r2, 02h
;SSE2_Copy16Times mm0, r2d
mov r3, r2
sal r3, 8
or r2, r3
movd mm1, r2d
pshufw mm0, mm1, 00h
;mov bh, bl
;movd mm1, ebx
;pshufw mm0, mm1, 00h ; up64
movq mm1, mm0
xor r2, r2
lea r0, [r0+2*r1]
movzx r2, byte [r0]
movzx r3, byte [r0+r1]
add r2, r3
lea r0, [r0+2*r1]
movzx r3, byte [r0]
add r2, r3
movzx r3, byte [r0+r1]
add r2, r3
add r2, 02h
sar r2, 02h
mov r3, r2
sal r3, 8
or r2, r3
movd mm3, r2d
pshufw mm2, mm3, 00h
;mov bh, bl
;movd mm3, ebx
;pshufw mm2, mm3, 00h ; down64
;SSE2_Copy16Times mm2, r2d
movq mm3, mm2
lea r2, [2*r1+r1]
movq [r4], mm0
movq [r4+r1], mm1
movq [r4+2*r1], mm0
movq [r4+r2], mm1
lea r4, [r4+4*r1]
movq [r4], mm2
movq [r4+r1], mm3
movq [r4+2*r1], mm2
movq [r4+r2], mm3
pop r4
pop r3
emms
ret
;*******************************************************************************
; void WelsDecoderIChromaPredDcTop_sse2(uint8_t *pPred, const int32_t kiStride)
;*******************************************************************************
WELS_EXTERN WelsDecoderIChromaPredDcTop_sse2
%assign push_num 0
LOAD_2_PARA
PUSH_XMM 8
SIGN_EXTENSION r1, r1d
mov r2, r0
sub r2, r1
movq xmm0, [r2] ; top: 8x1 pixels
pxor xmm7, xmm7
punpcklbw xmm0, xmm7 ; ext 8x2 words
pshufd xmm1, xmm0, 0B1h ; 10110001 B, w5 w4 w7 w6 w1 w0 w3 w2
paddw xmm0, xmm1 ; w5+7 w4+6 w5+7 w4+6 w1+3 w0+2 w1+3 w0+2
movdqa xmm1, xmm0
pshuflw xmm2, xmm0, 0B1h ; 10110001 B, .. w0+2 w1+3 w0+2 w1+3
pshufhw xmm3, xmm1, 0B1h ; 10110001 B, w4+6 w5+7 w4+6 w5+7 ..
paddw xmm0, xmm2 ; .. w0+..+3 w0+..+3 w0+..+3 w0+..+3
paddw xmm1, xmm3 ; w4+..+7 w4+..+7 w4+..+7 w4+..+7 ..
punpckhqdq xmm1, xmm7
punpcklqdq xmm0, xmm1 ; sum1 sum1 sum1 sum1 sum0 sum0 sum0 sum0
%ifdef X86_32_PICASM
pcmpeqw xmm6, xmm6
psrlw xmm6, 15
psllw xmm6, 1
%else
movdqa xmm6, [sse2_wd_0x02]
%endif
paddw xmm0, xmm6
psraw xmm0, 02h
packuswb xmm0, xmm7
lea r2, [2*r1+r1]
movq [r0], xmm0
movq [r0+r1], xmm0
movq [r0+2*r1], xmm0
movq [r0+r2], xmm0
lea r0, [r0+4*r1]
movq [r0], xmm0
movq [r0+r1], xmm0
movq [r0+2*r1], xmm0
movq [r0+r2], xmm0
POP_XMM
ret
;*******************************************************************************
; void WelsDecoderIChromaPredDcNA_mmx(uint8_t *pPred, const int32_t kiStride)
;*******************************************************************************
WELS_EXTERN WelsDecoderIChromaPredDcNA_mmx
%assign push_num 0
INIT_X86_32_PIC r3
LOAD_2_PARA
SIGN_EXTENSION r1, r1d
lea r2, [2*r1+r1]
movq mm0, [pic(sse2_dc_0x80)]
movq mm1, mm0
movq [r0], mm0
movq [r0+r1], mm1
movq [r0+2*r1], mm0
movq [r0+r2], mm1
lea r0, [r0+4*r1]
movq [r0], mm0
movq [r0+r1], mm1
movq [r0+2*r1], mm0
movq [r0+r2], mm1
DEINIT_X86_32_PIC
emms
ret