32 |
; * |
; * |
33 |
; * History: |
; * History: |
34 |
; * |
; * |
35 |
|
; * 09.08.2002 sse2 dequant funcs revamped |
36 |
|
; * 14.06.2002 mmx+xmm dequant_* funcs revamped -Skal- |
37 |
; * 24.02.2002 sse2 quant_intra / dequant_intra (have to use movdqu ???) |
; * 24.02.2002 sse2 quant_intra / dequant_intra (have to use movdqu ???) |
38 |
; * 17.04.2002 sse2 quant_inter / dequant_inter |
; * 17.04.2002 sse2 quant_inter / dequant_inter |
39 |
; * 26.12.2001 minor bug fixes, dequant saturate, further optimization |
; * 26.12.2001 minor bug fixes, dequant saturate, further optimization |
66 |
|
|
67 |
plus_one times 8 dw 1 |
plus_one times 8 dw 1 |
68 |
|
|
|
|
|
69 |
;=========================================================================== |
;=========================================================================== |
70 |
; |
; |
71 |
; subtract by Q/2 table |
; subtract by Q/2 table |
262 |
; |
; |
263 |
;=========================================================================== |
;=========================================================================== |
264 |
|
|
265 |
align ALIGN |
align 16 |
266 |
mmx_32768_minus_2048 times 4 dw (32768-2048) |
sse2_2047 times 8 dw 2047 |
|
mmx_32767_minus_2047 times 4 dw (32767-2047) |
|
267 |
|
|
268 |
align 16 |
align 16 |
269 |
sse2_pos_2047 times 8 dw 2047 |
mmx_2047 times 4 dw 2047 |
270 |
sse2_neg_2048 times 8 dw -2048 |
|
271 |
|
align 8 |
272 |
|
mmx_32768_minus_2048 times 4 dw (32768-2048) |
273 |
|
mmx_32767_minus_2047 times 4 dw (32767-2047) |
274 |
|
|
275 |
|
|
276 |
section .text |
section .text |
703 |
jmp .qes2_done |
jmp .qes2_done |
704 |
|
|
705 |
|
|
|
|
|
706 |
;=========================================================================== |
;=========================================================================== |
707 |
; |
; |
708 |
; void dequant_intra_mmx(int16_t *data, |
; void dequant_intra_mmx(int16_t *data, |
712 |
; |
; |
713 |
;=========================================================================== |
;=========================================================================== |
714 |
|
|
715 |
|
; note: we only saturate to +2047 *before* restoring the sign. |
716 |
|
; Hence, final clamp really is [-2048,2047] |
717 |
|
|
718 |
align ALIGN |
align ALIGN |
719 |
cglobal dequant_intra_mmx |
cglobal dequant_intra_mmx |
720 |
dequant_intra_mmx |
dequant_intra_mmx: |
|
|
|
|
push esi |
|
|
push edi |
|
|
|
|
|
mov edi, [esp + 8 + 4] ; data |
|
|
mov esi, [esp + 8 + 8] ; coeff |
|
|
mov eax, [esp + 8 + 12] ; quant |
|
721 |
|
|
722 |
movq mm6, [mmx_add + eax * 8 - 8] |
mov edx, [esp+ 4] ; data |
723 |
movq mm7, [mmx_mul + eax * 8 - 8] |
mov ecx, [esp+ 8] ; coeff |
724 |
xor eax, eax |
mov eax, [esp+12] ; quant |
725 |
|
movq mm6, [mmx_add + eax*8 - 8] ; quant or quant-1 |
726 |
|
movq mm7, [mmx_mul + eax*8 - 8] ; 2*quant |
727 |
|
mov eax, -16 |
728 |
|
|
729 |
align ALIGN |
align ALIGN |
730 |
.loop |
.loop |
731 |
movq mm0, [esi + 8*eax] ; mm0 = [coeff] |
movq mm0, [ecx+8*eax+8*16] ; c = coeff[i] |
732 |
movq mm3, [esi + 8*eax + 8] ; |
movq mm3, [ecx+8*eax+8*16 + 8] ; c' = coeff[i+1] |
733 |
pxor mm1, mm1 ; mm1 = 0 |
pxor mm1, mm1 |
734 |
pxor mm4, mm4 ; |
pxor mm4, mm4 |
735 |
pcmpgtw mm1, mm0 ; mm1 = (0 > mm0) |
pcmpgtw mm1, mm0 ; sign(c) |
736 |
pcmpgtw mm4, mm3 ; |
pcmpgtw mm4, mm3 ; sign(c') |
737 |
pxor mm2, mm2 ; mm2 = 0 |
pxor mm2, mm2 |
738 |
pxor mm5, mm5 ; |
pxor mm5, mm5 |
739 |
pcmpeqw mm2, mm0 ; mm2 = (0 == mm0) |
pcmpeqw mm2, mm0 ; c is zero |
740 |
pcmpeqw mm5, mm3 ; |
pcmpeqw mm5, mm3 ; c' is zero |
741 |
pandn mm2, mm6 ; mm2 = (iszero ? 0 : add) |
pandn mm2, mm6 ; offset = isZero ? 0 : quant_add |
742 |
pandn mm5, mm6 ; |
pandn mm5, mm6 |
743 |
pxor mm0, mm1 ; mm0 = |mm0| |
pxor mm0, mm1 ; negate if negative |
744 |
pxor mm3, mm4 ; |
pxor mm3, mm4 ; negate if negative |
745 |
psubw mm0, mm1 ; displace |
psubw mm0, mm1 |
|
psubw mm3, mm4 ; |
|
|
pmullw mm0, mm7 ; mm0 *= 2Q |
|
|
pmullw mm3, mm7 ; |
|
|
paddw mm0, mm2 ; mm0 += mm2 (add) |
|
|
paddw mm3, mm5 ; |
|
|
pxor mm0, mm1 ; mm0 *= sign(mm0) |
|
|
pxor mm3, mm4 ; |
|
|
psubw mm0, mm1 ; undisplace |
|
746 |
psubw mm3, mm4 |
psubw mm3, mm4 |
747 |
|
pmullw mm0, mm7 ; *= 2Q |
748 |
|
pmullw mm3, mm7 ; *= 2Q |
749 |
|
paddw mm0, mm2 ; + offset |
750 |
|
paddw mm3, mm5 ; + offset |
751 |
|
paddw mm0, mm1 ; negate back |
752 |
|
paddw mm3, mm4 ; negate back |
753 |
|
|
754 |
%ifdef SATURATE |
; saturates to +2047 |
755 |
movq mm2, [mmx_32767_minus_2047] |
movq mm2, [mmx_32767_minus_2047] |
756 |
movq mm4, [mmx_32768_minus_2048] |
add eax, 2 |
757 |
paddsw mm0, mm2 |
paddsw mm0, mm2 |
758 |
paddsw mm3, mm2 |
paddsw mm3, mm2 |
759 |
psubsw mm0, mm2 |
psubsw mm0, mm2 |
760 |
psubsw mm3, mm2 |
psubsw mm3, mm2 |
|
psubsw mm0, mm4 |
|
|
psubsw mm3, mm4 |
|
|
paddsw mm0, mm4 |
|
|
paddsw mm3, mm4 |
|
|
%endif |
|
761 |
|
|
762 |
movq [edi + 8*eax], mm0 ; [data] = mm0 |
pxor mm0, mm1 |
763 |
movq [edi + 8*eax + 8], mm3 |
pxor mm3, mm4 |
764 |
|
movq [edx + 8*eax + 8*16 - 2*8], mm0 |
765 |
add eax, 2 |
movq [edx + 8*eax + 8*16+8 - 2*8], mm3 |
|
cmp eax, 16 |
|
766 |
jnz near .loop |
jnz near .loop |
767 |
|
|
768 |
mov ax, [esi] ; ax = data[0] |
; deal with DC |
|
imul ax, [esp + 8 + 16] ; eax = data[0] * dcscalar |
|
769 |
|
|
770 |
%ifdef SATURATE |
movd mm0, [ecx] |
771 |
cmp ax, -2048 |
pmullw mm0, [esp+16] ; dcscalar |
772 |
jl .set_n2048 |
movq mm2, [mmx_32767_minus_2047] |
773 |
cmp ax, 2047 |
paddsw mm0, mm2 |
774 |
jg .set_2047 |
psubsw mm0, mm2 |
775 |
%endif |
movq mm3, [mmx_32768_minus_2048] |
776 |
mov [edi], ax |
psubsw mm0, mm3 |
777 |
|
paddsw mm0, mm3 |
778 |
|
movd eax, mm0 |
779 |
|
mov [edx], ax |
780 |
|
|
|
pop edi |
|
|
pop esi |
|
781 |
ret |
ret |
782 |
|
|
783 |
%ifdef SATURATE |
;=========================================================================== |
784 |
|
; |
785 |
|
; void dequant_intra_xmm(int16_t *data, |
786 |
|
; const int16_t const *coeff, |
787 |
|
; const uint32_t quant, |
788 |
|
; const uint32_t dcscalar); |
789 |
|
; |
790 |
|
;=========================================================================== |
791 |
|
|
792 |
|
; this is the same as dequant_inter_mmx, except that we're |
793 |
|
; saturating using 'pminsw' (saves 2 cycles/loop => ~5% faster) |
794 |
|
|
795 |
align ALIGN |
align ALIGN |
796 |
.set_n2048 |
cglobal dequant_intra_xmm |
797 |
mov word [edi], -2048 |
dequant_intra_xmm: |
798 |
pop edi |
|
799 |
pop esi |
mov edx, [esp+ 4] ; data |
800 |
ret |
mov ecx, [esp+ 8] ; coeff |
801 |
|
mov eax, [esp+12] ; quant |
802 |
|
movq mm6, [mmx_add + eax*8 - 8] ; quant or quant-1 |
803 |
|
movq mm7, [mmx_mul + eax*8 - 8] ; 2*quant |
804 |
|
mov eax, -16 |
805 |
|
|
806 |
align ALIGN |
align ALIGN |
807 |
.set_2047 |
.loop |
808 |
mov word [edi], 2047 |
movq mm0, [ecx+8*eax+8*16] ; c = coeff[i] |
809 |
pop edi |
movq mm3, [ecx+8*eax+8*16 + 8] ; c' = coeff[i+1] |
810 |
pop esi |
pxor mm1, mm1 |
811 |
ret |
pxor mm4, mm4 |
812 |
%endif |
pcmpgtw mm1, mm0 ; sign(c) |
813 |
|
pcmpgtw mm4, mm3 ; sign(c') |
814 |
|
pxor mm2, mm2 |
815 |
|
pxor mm5, mm5 |
816 |
|
pcmpeqw mm2, mm0 ; c is zero |
817 |
|
pcmpeqw mm5, mm3 ; c' is zero |
818 |
|
pandn mm2, mm6 ; offset = isZero ? 0 : quant_add |
819 |
|
pandn mm5, mm6 |
820 |
|
pxor mm0, mm1 ; negate if negative |
821 |
|
pxor mm3, mm4 ; negate if negative |
822 |
|
psubw mm0, mm1 |
823 |
|
psubw mm3, mm4 |
824 |
|
pmullw mm0, mm7 ; *= 2Q |
825 |
|
pmullw mm3, mm7 ; *= 2Q |
826 |
|
paddw mm0, mm2 ; + offset |
827 |
|
paddw mm3, mm5 ; + offset |
828 |
|
paddw mm0, mm1 ; negate back |
829 |
|
paddw mm3, mm4 ; negate back |
830 |
|
|
831 |
|
; saturates to +2047 |
832 |
|
movq mm2, [mmx_2047] |
833 |
|
pminsw mm0, mm2 |
834 |
|
add eax, 2 |
835 |
|
pminsw mm3, mm2 |
836 |
|
|
837 |
|
pxor mm0, mm1 |
838 |
|
pxor mm3, mm4 |
839 |
|
movq [edx + 8*eax + 8*16 - 2*8], mm0 |
840 |
|
movq [edx + 8*eax + 8*16+8 - 2*8], mm3 |
841 |
|
jnz near .loop |
842 |
|
|
843 |
|
; deal with DC |
844 |
|
|
845 |
|
movd mm0, [ecx] |
846 |
|
pmullw mm0, [esp+16] ; dcscalar |
847 |
|
movq mm2, [mmx_32767_minus_2047] |
848 |
|
paddsw mm0, mm2 |
849 |
|
psubsw mm0, mm2 |
850 |
|
movq mm2, [mmx_32768_minus_2048] |
851 |
|
psubsw mm0, mm2 |
852 |
|
paddsw mm0, mm2 |
853 |
|
movd eax, mm0 |
854 |
|
mov [edx], ax |
855 |
|
|
856 |
|
ret |
857 |
|
|
858 |
|
|
859 |
;=========================================================================== |
;=========================================================================== |
864 |
; const uint32_t dcscalar); |
; const uint32_t dcscalar); |
865 |
; |
; |
866 |
;=========================================================================== |
;=========================================================================== |
867 |
|
align ALIGN |
|
align 16 |
|
868 |
cglobal dequant_intra_sse2 |
cglobal dequant_intra_sse2 |
869 |
dequant_intra_sse2 |
dequant_intra_sse2: |
870 |
|
mov edx, [esp+ 4] ; data |
871 |
push esi |
mov ecx, [esp+ 8] ; coeff |
872 |
push edi |
mov eax, [esp+12] ; quant |
|
|
|
|
mov edi, [esp + 8 + 4] ; data |
|
|
mov esi, [esp + 8 + 8] ; coeff |
|
|
mov eax, [esp + 8 + 12] ; quant |
|
|
|
|
873 |
movq mm6, [mmx_add + eax*8 - 8] |
movq mm6, [mmx_add + eax*8 - 8] |
874 |
movq mm7, [mmx_mul + eax*8 - 8] |
movq mm7, [mmx_mul + eax*8 - 8] |
875 |
movq2dq xmm6, mm6 |
movq2dq xmm6, mm6 |
876 |
movq2dq xmm7, mm7 |
movq2dq xmm7, mm7 |
877 |
movlhps xmm6, xmm6 |
movlhps xmm6, xmm6 |
878 |
movlhps xmm7, xmm7 |
movlhps xmm7, xmm7 |
879 |
|
mov eax, -16 |
880 |
|
|
881 |
xor eax, eax |
align ALIGN |
882 |
|
.loop |
883 |
align 16 |
movdqa xmm0, [ecx + 8*16 + 8*eax] ; c = coeff[i] |
884 |
.das2_loop |
movdqa xmm3, [ecx + 8*16 + 8*eax+ 16] |
|
movdqa xmm0, [esi + eax*8] |
|
|
movdqa xmm3, [esi + eax*8 + 16] |
|
885 |
pxor xmm1, xmm1 |
pxor xmm1, xmm1 |
886 |
pxor xmm4, xmm4 |
pxor xmm4, xmm4 |
887 |
pcmpgtw xmm1, xmm0 |
pcmpgtw xmm1, xmm0 ; sign(c) |
888 |
pcmpgtw xmm4, xmm3 |
pcmpgtw xmm4, xmm3 |
889 |
pxor xmm2, xmm2 |
pxor xmm2, xmm2 |
890 |
pxor xmm5, xmm5 |
pxor xmm5, xmm5 |
891 |
pcmpeqw xmm2, xmm0 |
pcmpeqw xmm2, xmm0 ; c is zero |
892 |
pcmpeqw xmm5, xmm3 |
pcmpeqw xmm5, xmm3 |
893 |
pandn xmm2, xmm6 |
pandn xmm2, xmm6 ; offset = isZero ? 0 : quant_add |
894 |
pandn xmm5, xmm6 |
pandn xmm5, xmm6 |
895 |
pxor xmm0, xmm1 |
pxor xmm0, xmm1 ; negate if negative |
896 |
pxor xmm3, xmm4 |
pxor xmm3, xmm4 |
897 |
psubw xmm0, xmm1 |
psubw xmm0, xmm1 |
898 |
psubw xmm3, xmm4 |
psubw xmm3, xmm4 |
899 |
pmullw xmm0, xmm7 |
pmullw xmm0, xmm7 ; *= 2Q |
900 |
pmullw xmm3, xmm7 |
pmullw xmm3, xmm7 |
901 |
paddw xmm0, xmm2 |
paddw xmm0, xmm2 ; + offset |
902 |
paddw xmm3, xmm5 |
paddw xmm3, xmm5 |
903 |
pxor xmm0, xmm1 |
paddw xmm0, xmm1 ; negate back |
904 |
pxor xmm3, xmm4 |
paddw xmm3, xmm4 |
|
psubw xmm0, xmm1 |
|
|
psubw xmm3, xmm4 |
|
905 |
|
|
906 |
%ifdef SATURATE |
; saturates to +2047 |
907 |
movdqu xmm2, [sse2_pos_2047] |
movdqa xmm2, [sse2_2047] |
|
movdqu xmm4, [sse2_neg_2048] |
|
908 |
pminsw xmm0, xmm2 |
pminsw xmm0, xmm2 |
|
pminsw xmm3, xmm2 |
|
|
pmaxsw xmm0, xmm4 |
|
|
pmaxsw xmm3, xmm4 |
|
|
%endif |
|
|
|
|
|
movdqa [edi + eax*8], xmm0 |
|
|
movdqa [edi + eax*8 + 16], xmm3 |
|
|
|
|
909 |
add eax, 4 |
add eax, 4 |
910 |
cmp eax, 16 |
pminsw xmm3, xmm2 |
|
jnz near .das2_loop |
|
|
|
|
|
mov ax, [esi] ; ax = data[0] |
|
|
imul ax, [esp + 8 + 16] ; eax = data[0] * dcscalar |
|
911 |
|
|
912 |
%ifdef SATURATE |
pxor xmm0, xmm1 |
913 |
cmp ax, -2048 |
pxor xmm3, xmm4 |
914 |
jl .das2_set_n2048 |
movdqa [edx + 8*16 - 8*4 + 8*eax], xmm0 |
915 |
cmp ax, 2047 |
movdqa [edx + 8*16 - 8*4 + 8*eax + 16], xmm3 |
916 |
jg .das2_set_2047 |
jnz near .loop |
|
%endif |
|
|
mov [edi], ax |
|
917 |
|
|
918 |
pop edi |
; deal with DC |
919 |
pop esi |
movd mm0, [ecx] |
920 |
ret |
pmullw mm0, [esp+16] ; dcscalar |
921 |
|
movq mm2, [mmx_32767_minus_2047] |
922 |
|
paddsw mm0, mm2 |
923 |
|
psubsw mm0, mm2 |
924 |
|
movq mm2, [mmx_32768_minus_2048] |
925 |
|
psubsw mm0, mm2 |
926 |
|
paddsw mm0, mm2 |
927 |
|
movd eax, mm0 |
928 |
|
mov [edx], ax |
929 |
|
|
|
%ifdef SATURATE |
|
|
align 16 |
|
|
.das2_set_n2048 |
|
|
mov word [edi], -2048 |
|
|
pop edi |
|
|
pop esi |
|
930 |
ret |
ret |
931 |
|
|
|
align 16 |
|
|
.das2_set_2047 |
|
|
mov word [edi], 2047 |
|
|
pop edi |
|
|
pop esi |
|
|
ret |
|
|
%endif |
|
932 |
|
|
933 |
|
|
934 |
|
|
942 |
|
|
943 |
align ALIGN |
align ALIGN |
944 |
cglobal dequant_inter_mmx |
cglobal dequant_inter_mmx |
945 |
dequant_inter_mmx |
dequant_inter_mmx: |
946 |
|
|
947 |
push esi |
mov edx, [esp+ 4] ; data |
948 |
push edi |
mov ecx, [esp+ 8] ; coeff |
949 |
|
mov eax, [esp+12] ; quant |
950 |
mov edi, [esp + 8 + 4] ; data |
movq mm6, [mmx_add + eax*8 - 8] ; quant or quant-1 |
951 |
mov esi, [esp + 8 + 8] ; coeff |
movq mm7, [mmx_mul + eax*8 - 8] ; 2*quant |
952 |
mov eax, [esp + 8 + 12] ; quant |
mov eax, -16 |
|
movq mm6, [mmx_add + eax * 8 - 8] |
|
|
movq mm7, [mmx_mul + eax * 8 - 8] |
|
|
|
|
|
xor eax, eax |
|
953 |
|
|
954 |
align ALIGN |
align ALIGN |
955 |
.loop |
.loop |
956 |
movq mm0, [esi + 8*eax] ; mm0 = [coeff] |
movq mm0, [ecx+8*eax+8*16] ; c = coeff[i] |
957 |
movq mm3, [esi + 8*eax + 8] ; |
movq mm3, [ecx+8*eax+8*16 + 8] ; c' = coeff[i+1] |
958 |
pxor mm1, mm1 ; mm1 = 0 |
pxor mm1, mm1 |
959 |
pxor mm4, mm4 ; |
pxor mm4, mm4 |
960 |
pcmpgtw mm1, mm0 ; mm1 = (0 > mm0) |
pcmpgtw mm1, mm0 ; sign(c) |
961 |
pcmpgtw mm4, mm3 ; |
pcmpgtw mm4, mm3 ; sign(c') |
962 |
pxor mm2, mm2 ; mm2 = 0 |
pxor mm2, mm2 |
963 |
pxor mm5, mm5 ; |
pxor mm5, mm5 |
964 |
pcmpeqw mm2, mm0 ; mm2 = (0 == mm0) |
pcmpeqw mm2, mm0 ; c is zero |
965 |
pcmpeqw mm5, mm3 ; |
pcmpeqw mm5, mm3 ; c' is zero |
966 |
pandn mm2, mm6 ; mm2 = (iszero ? 0 : add) |
pandn mm2, mm6 ; offset = isZero ? 0 : quant_add |
967 |
pandn mm5, mm6 ; |
pandn mm5, mm6 |
968 |
pxor mm0, mm1 ; mm0 = |mm0| |
pxor mm0, mm1 ; negate if negative |
969 |
pxor mm3, mm4 ; |
pxor mm3, mm4 ; negate if negative |
970 |
psubw mm0, mm1 ; displace |
psubw mm0, mm1 |
|
psubw mm3, mm4 ; |
|
|
pmullw mm0, mm7 ; mm0 *= 2Q |
|
|
pmullw mm3, mm7 ; |
|
|
paddw mm0, mm2 ; mm0 += mm2 (add) |
|
|
paddw mm3, mm5 ; |
|
|
pxor mm0, mm1 ; mm0 *= sign(mm0) |
|
|
pxor mm3, mm4 ; |
|
|
psubw mm0, mm1 ; undisplace |
|
971 |
psubw mm3, mm4 |
psubw mm3, mm4 |
972 |
|
pmullw mm0, mm7 ; *= 2Q |
973 |
|
pmullw mm3, mm7 ; *= 2Q |
974 |
|
paddw mm0, mm2 ; + offset |
975 |
|
paddw mm3, mm5 ; + offset |
976 |
|
paddw mm0, mm1 ; negate back |
977 |
|
paddw mm3, mm4 ; negate back |
978 |
|
|
979 |
%ifdef SATURATE |
; saturates to +2047 |
980 |
movq mm2, [mmx_32767_minus_2047] |
movq mm2, [mmx_32767_minus_2047] |
981 |
movq mm4, [mmx_32768_minus_2048] |
add eax, 2 |
982 |
paddsw mm0, mm2 |
paddsw mm0, mm2 |
983 |
paddsw mm3, mm2 |
paddsw mm3, mm2 |
984 |
psubsw mm0, mm2 |
psubsw mm0, mm2 |
985 |
psubsw mm3, mm2 |
psubsw mm3, mm2 |
|
psubsw mm0, mm4 |
|
|
psubsw mm3, mm4 |
|
|
paddsw mm0, mm4 |
|
|
paddsw mm3, mm4 |
|
|
%endif |
|
986 |
|
|
987 |
movq [edi + 8*eax], mm0 |
pxor mm0, mm1 |
988 |
movq [edi + 8*eax + 8], mm3 |
pxor mm3, mm4 |
989 |
|
movq [edx + 8*eax + 8*16 - 2*8], mm0 |
990 |
|
movq [edx + 8*eax + 8*16+8 - 2*8], mm3 |
991 |
|
jnz near .loop |
992 |
|
|
993 |
|
ret |
994 |
|
|
995 |
|
;=========================================================================== |
996 |
|
; |
997 |
|
; void dequant_inter_xmm(int16_t * data, |
998 |
|
; const int16_t * const coeff, |
999 |
|
; const uint32_t quant); |
1000 |
|
; |
1001 |
|
;=========================================================================== |
1002 |
|
|
1003 |
|
; this is the same as dequant_inter_mmx, |
1004 |
|
; except that we're saturating using 'pminsw' (saves 2 cycles/loop) |
1005 |
|
|
1006 |
|
align ALIGN |
1007 |
|
cglobal dequant_inter_xmm |
1008 |
|
dequant_inter_xmm: |
1009 |
|
|
1010 |
|
mov edx, [esp+ 4] ; data |
1011 |
|
mov ecx, [esp+ 8] ; coeff |
1012 |
|
mov eax, [esp+12] ; quant |
1013 |
|
movq mm6, [mmx_add + eax*8 - 8] ; quant or quant-1 |
1014 |
|
movq mm7, [mmx_mul + eax*8 - 8] ; 2*quant |
1015 |
|
mov eax, -16 |
1016 |
|
|
1017 |
|
align ALIGN |
1018 |
|
.loop |
1019 |
|
movq mm0, [ecx+8*eax+8*16] ; c = coeff[i] |
1020 |
|
movq mm3, [ecx+8*eax+8*16 + 8] ; c' = coeff[i+1] |
1021 |
|
pxor mm1, mm1 |
1022 |
|
pxor mm4, mm4 |
1023 |
|
pcmpgtw mm1, mm0 ; sign(c) |
1024 |
|
pcmpgtw mm4, mm3 ; sign(c') |
1025 |
|
pxor mm2, mm2 |
1026 |
|
pxor mm5, mm5 |
1027 |
|
pcmpeqw mm2, mm0 ; c is zero |
1028 |
|
pcmpeqw mm5, mm3 ; c' is zero |
1029 |
|
pandn mm2, mm6 ; offset = isZero ? 0 : quant_add |
1030 |
|
pandn mm5, mm6 |
1031 |
|
pxor mm0, mm1 ; negate if negative |
1032 |
|
pxor mm3, mm4 ; negate if negative |
1033 |
|
psubw mm0, mm1 |
1034 |
|
psubw mm3, mm4 |
1035 |
|
pmullw mm0, mm7 ; *= 2Q |
1036 |
|
pmullw mm3, mm7 ; *= 2Q |
1037 |
|
paddw mm0, mm2 ; + offset |
1038 |
|
paddw mm3, mm5 ; + offset |
1039 |
|
paddw mm0, mm1 ; start restoring sign |
1040 |
|
paddw mm3, mm4 ; start restoring sign |
1041 |
|
|
1042 |
|
; saturates to +2047 |
1043 |
|
movq mm2, [mmx_2047] |
1044 |
|
pminsw mm0, mm2 |
1045 |
add eax, 2 |
add eax, 2 |
1046 |
cmp eax, 16 |
pminsw mm3, mm2 |
|
jnz near .loop |
|
1047 |
|
|
1048 |
pop edi |
pxor mm0, mm1 ; finish restoring sign |
1049 |
pop esi |
pxor mm3, mm4 ; finish restoring sign |
1050 |
|
movq [edx + 8*eax + 8*16 - 2*8], mm0 |
1051 |
|
movq [edx + 8*eax + 8*16+8 - 2*8], mm3 |
1052 |
|
jnz near .loop |
1053 |
|
|
1054 |
ret |
ret |
1055 |
|
|
|
|
|
1056 |
;=========================================================================== |
;=========================================================================== |
1057 |
; |
; |
1058 |
; void dequant_inter_sse2(int16_t * data, |
; void dequant_inter_sse2(int16_t * data, |
1060 |
; const uint32_t quant); |
; const uint32_t quant); |
1061 |
; |
; |
1062 |
;=========================================================================== |
;=========================================================================== |
1063 |
|
align ALIGN |
|
align 16 |
|
1064 |
cglobal dequant_inter_sse2 |
cglobal dequant_inter_sse2 |
1065 |
dequant_inter_sse2 |
dequant_inter_sse2 |
1066 |
|
mov edx, [esp + 4] ; data |
1067 |
push esi |
mov ecx, [esp + 8] ; coeff |
1068 |
push edi |
mov eax, [esp + 12] ; quant |
|
|
|
|
mov edi, [esp + 8 + 4] ; data |
|
|
mov esi, [esp + 8 + 8] ; coeff |
|
|
mov eax, [esp + 8 + 12] ; quant |
|
1069 |
movq mm6, [mmx_add + eax * 8 - 8] |
movq mm6, [mmx_add + eax * 8 - 8] |
1070 |
movq mm7, [mmx_mul + eax * 8 - 8] |
movq mm7, [mmx_mul + eax * 8 - 8] |
|
|
|
1071 |
movq2dq xmm6, mm6 |
movq2dq xmm6, mm6 |
1072 |
movq2dq xmm7, mm7 |
movq2dq xmm7, mm7 |
1073 |
movlhps xmm6, xmm6 |
movlhps xmm6, xmm6 |
1074 |
movlhps xmm7, xmm7 |
movlhps xmm7, xmm7 |
1075 |
|
mov eax, -16 |
1076 |
|
|
1077 |
xor eax, eax |
align ALIGN |
1078 |
|
.loop |
1079 |
|
movdqa xmm0, [ecx + 8*16 + 8*eax] ; c = coeff[i] |
1080 |
|
movdqa xmm3, [ecx + 8*16 + 8*eax + 16] |
1081 |
|
|
|
align 16 |
|
|
.des2_loop |
|
|
movdqa xmm0, [esi + eax*8] ; xmm0 = [coeff] |
|
|
movdqa xmm3, [esi + eax*8 + 16] |
|
1082 |
pxor xmm1, xmm1 |
pxor xmm1, xmm1 |
1083 |
pxor xmm4, xmm4 |
pxor xmm4, xmm4 |
1084 |
pcmpgtw xmm1, xmm0 |
pcmpgtw xmm1, xmm0 ; sign(c) |
1085 |
pcmpgtw xmm4, xmm3 |
pcmpgtw xmm4, xmm3 |
1086 |
pxor xmm2, xmm2 |
pxor xmm2, xmm2 |
1087 |
pxor xmm5, xmm5 |
pxor xmm5, xmm5 |
1088 |
pcmpeqw xmm2, xmm0 |
pcmpeqw xmm2, xmm0 ; c is zero |
1089 |
pcmpeqw xmm5, xmm3 |
pcmpeqw xmm5, xmm3 |
1090 |
pandn xmm2, xmm6 |
pandn xmm2, xmm6 |
1091 |
pandn xmm5, xmm6 |
pandn xmm5, xmm6 |
1092 |
pxor xmm0, xmm1 |
pxor xmm0, xmm1 ; negate if negative |
1093 |
pxor xmm3, xmm4 |
pxor xmm3, xmm4 |
1094 |
psubw xmm0, xmm1 |
psubw xmm0, xmm1 |
1095 |
psubw xmm3, xmm4 |
psubw xmm3, xmm4 |
1096 |
pmullw xmm0, xmm7 |
pmullw xmm0, xmm7 ; *= 2Q |
1097 |
pmullw xmm3, xmm7 |
pmullw xmm3, xmm7 |
1098 |
paddw xmm0, xmm2 |
paddw xmm0, xmm2 ; + offset |
1099 |
paddw xmm3, xmm5 |
paddw xmm3, xmm5 |
|
pxor xmm0, xmm1 |
|
|
pxor xmm3, xmm4 |
|
|
psubw xmm0, xmm1 |
|
|
psubw xmm3, xmm4 |
|
|
|
|
|
%ifdef SATURATE |
|
|
movdqu xmm2, [sse2_pos_2047] |
|
|
movdqu xmm4, [sse2_neg_2048] |
|
|
pminsw xmm0, xmm2 |
|
|
pminsw xmm3, xmm2 |
|
|
pmaxsw xmm0, xmm4 |
|
|
pmaxsw xmm3, xmm4 |
|
|
%endif |
|
1100 |
|
|
1101 |
movdqa [edi + eax*8], xmm0 |
paddw xmm0, xmm1 ; start restoring sign |
1102 |
movdqa [edi + eax*8 + 16], xmm3 |
paddw xmm3, xmm4 |
1103 |
|
|
1104 |
|
; saturates to +2047 |
1105 |
|
movdqa xmm2, [sse2_2047] |
1106 |
|
pminsw xmm0, xmm2 |
1107 |
add eax, 4 |
add eax, 4 |
1108 |
cmp eax, 16 |
pminsw xmm3, xmm2 |
|
jnz near .des2_loop |
|
1109 |
|
|
1110 |
pop edi |
pxor xmm0, xmm1 ; finish restoring sign |
1111 |
pop esi |
pxor xmm3, xmm4 |
1112 |
|
movdqa [edx + 8*16 - 8*4 + 8*eax], xmm0 |
1113 |
|
movdqa [edx + 8*16 - 8*4 + 8*eax + 16], xmm3 |
1114 |
|
jnz near .loop |
1115 |
|
|
1116 |
ret |
ret |