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;/************************************************************************** |
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; * |
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; * XVID MPEG-4 VIDEO CODEC |
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; * mmx quantization/dequantization |
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; * |
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; * This program is an implementation of a part of one or more MPEG-4 |
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; * Video tools as specified in ISO/IEC 14496-2 standard. Those intending |
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; * to use this software module in hardware or software products are |
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; * advised that its use may infringe existing patents or copyrights, and |
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; * any such use would be at such party's own risk. The original |
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; * developer of this software module and his/her company, and subsequent |
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; * editors and their companies, will have no liability for use of this |
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; * software or modifications or derivatives thereof. |
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; * |
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; * This program is free software; you can redistribute it and/or modify |
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; * it under the terms of the GNU General Public License as published by |
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; * the Free Software Foundation; either version 2 of the License, or |
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; * (at your option) any later version. |
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; * |
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; * This program is distributed in the hope that it will be useful, |
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; * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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; * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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; * GNU General Public License for more details. |
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; * |
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; * You should have received a copy of the GNU General Public License |
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; * along with this program; if not, write to the Free Software |
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; * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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; * |
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; *************************************************************************/ |
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; these 3dne functions are compatible with iSSE, but are optimized specifically for |
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; K7 pipelines |
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; |
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;------------------------------------------------------------------------------ |
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; 09.12.2002 Athlon optimizations contributed by Jaan Kalda |
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;------------------------------------------------------------------------------ |
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|
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; enable dequant saturate [-2048,2047], test purposes only. |
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%define SATURATE |
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|
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; data/text alignment |
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%define ALIGN 16 |
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|
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bits 32 |
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|
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%ifdef FORMAT_COFF |
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section .data data |
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%else |
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section .data data align=16 |
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%endif |
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|
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%macro cglobal 1 |
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%ifdef PREFIX |
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global _%1 |
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%define %1 _%1 |
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%else |
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global %1 |
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%endif |
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%endmacro |
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align 4 |
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int_div |
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dd 0 |
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%assign i 1 |
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%rep 255 |
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dd (1 << 16) / ( i) + 1 |
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%assign i i+1 |
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%endrep |
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|
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align 16 |
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|
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plus_one times 8 dw 1 |
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|
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;=========================================================================== |
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; |
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; subtract by Q/2 table |
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; |
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;=========================================================================== |
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|
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%macro MMX_SUB 1 |
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times 4 dw %1 / 2 |
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%endmacro |
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|
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|
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align 16 |
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mmx_sub |
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%assign i 1 |
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%rep 31 |
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times 4 dw i / 2 |
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%assign i i+1 |
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%endrep |
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|
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|
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;=========================================================================== |
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; |
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; divide by 2Q table |
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; |
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; use a shift of 16 to take full advantage of _pmulhw_ |
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; for q=1, _pmulhw_ will overflow so it is treated seperately |
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; (3dnow2 provides _pmulhuw_ which wont cause overflow) |
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; |
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;=========================================================================== |
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|
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align 16 |
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mmx_div |
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|
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%assign i 1 |
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%rep 31 |
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times 4 dw (1 << 16) / (i * 2) + 1 |
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%assign i i+1 |
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%endrep |
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|
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;=========================================================================== |
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; |
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; add by (odd(Q) ? Q : Q - 1) table |
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; |
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;=========================================================================== |
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|
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%macro MMX_ADD 1 |
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%if %1 % 2 != 0 |
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times 4 dw %1 |
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%else |
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times 4 dw %1 - 1 |
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%endif |
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%endmacro |
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|
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align 16 |
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mmx_add |
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|
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%assign i 1 |
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%rep 31 |
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MMX_ADD i |
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%assign i i+1 |
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%endrep |
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|
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;=========================================================================== |
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; |
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; multiple by 2Q table |
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; |
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;=========================================================================== |
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|
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%macro MMX_MUL 1 |
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times 4 dw %1 * 2 |
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%endmacro |
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|
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align 16 |
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mmx_mul |
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|
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%assign i 1 |
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%rep 31 |
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times 4 dw i * 2 |
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%assign i i+1 |
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%endrep |
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|
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;=========================================================================== |
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; |
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; saturation limits |
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; |
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;=========================================================================== |
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|
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align 8 |
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mmx_32768_minus_2048 times 4 dw (32768-2048) |
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mmx_32767_minus_2047 times 4 dw (32767-2047) |
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|
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align 16 |
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mmx_2047 times 4 dw 2047 |
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|
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align 8 |
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mmzero dd 0, 0 |
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int2047 dd 2047 |
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int_2048 dd -2048 |
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section .text |
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|
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;=========================================================================== |
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; |
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; void quant_intra_3dne(int16_t * coeff, |
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; const int16_t const * data, |
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; const uint32_t quant, |
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; const uint32_t dcscalar); |
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; |
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;=========================================================================== |
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;This is Athlon-optimized code (ca 70 clk per call) |
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;Optimized by Jaan, 30 Nov 2002 |
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%macro quant_intra1 1 |
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psubw mm1,mm0 ;A3 |
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psubw mm3,mm2 ;B3 |
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%if (%1) |
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psubw mm5, mm4 ;C8 |
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psubw mm7, mm6 ;D8 |
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%endif |
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|
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align 8 |
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db 0Fh, 6Fh, 64h, 21h, (%1 * 32 +16) ;movq mm4, [ecx + %1 * 32 +16+32] ;C1 |
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pmaxsw mm1,mm0 ;A4 |
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db 0Fh, 6Fh, 74h, 21h, (%1 * 32 +24);movq mm6, [ecx + %1 * 32 +24+32] ;D1 |
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pmaxsw mm3,mm2 ;B4 |
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|
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|
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psraw mm0,15 ;A5 |
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psraw mm2,15 ;B5 |
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%if (%1) |
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movq [edx + %1 * 32 + 16-32], mm5 ;C9 |
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movq [edx + %1 * 32 + 24-32], mm7 ;D9 |
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%endif |
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|
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psrlw mm1, 1 ;A6 |
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psrlw mm3, 1 ;B6 |
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movq mm5, [ebx] ;C2 |
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movq mm7, [ebx] ;D2 |
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|
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pxor mm1, mm0 ;A7 |
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pxor mm3, mm2 ;B7 |
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|
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psubw mm5,mm4 ;C3 |
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psubw mm7,mm6 ;D3 |
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psubw mm1, mm0 ;A8 |
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psubw mm3, mm2 ;B8 |
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|
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%if (%1 == 0) |
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push ebp |
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movq mm0, [ecx + %1 * 32 +32] |
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%elif (%1 < 3) |
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db 0Fh, 6Fh, 44h, 21h, (%1 * 32 +32) ;movq mm0, [ecx + %1 * 32 +32] ;A1 |
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%endif |
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pmaxsw mm5,mm4 ;C4 |
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%if (%1 < 3) |
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db 0Fh, 6Fh, 54h, 21h, ( %1 * 32 +8+32) ;movq mm2, [ecx + %1 * 32 +8+32] ;B1 |
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%else |
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cmp esp,esp |
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%endif |
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pmaxsw mm7,mm6 ;D4 |
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|
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psraw mm4,15 ;C5 |
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psraw mm6,15 ;D5 |
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movq [byte edx + %1 * 32], mm1 ;A9 |
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movq [edx + %1 * 32+8], mm3 ;B9 |
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|
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|
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psrlw mm5, 1 ;C6 |
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psrlw mm7, 1 ;D6 |
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%if (%1 < 3) |
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movq mm1, [ebx] ;A2 |
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movq mm3, [ebx] ;B2 |
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%endif |
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%if (%1 == 3) |
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imul eax,[int_div+4*edi] |
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%endif |
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pxor mm5, mm4 ;C7 |
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pxor mm7, mm6 ;D7 |
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%endm |
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|
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|
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%macro quant_intra 1 ;rules for athlon: 1) schedule latencies, 2) add/mul and load/store in 2:1 proportion, |
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; 3) avoid spliting >3byte instructions over 8byte boundaries |
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psubw mm1,mm0 ;A3 |
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psubw mm3,mm2 ;B3 |
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%if (%1) |
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psubw mm5, mm4 ;C8 |
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psubw mm7, mm6 ;D8 |
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%endif |
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|
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align 8 |
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db 0Fh, 6Fh, 64h, 21h, (%1 * 32 +16) ;movq mm4, [ecx + %1 * 32 +16+32] ;C1 |
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pmaxsw mm1,mm0 ;A4 |
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db 0Fh, 6Fh, 74h, 21h, (%1 * 32 +24);movq mm6, [ecx + %1 * 32 +24+32] ;D1 |
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pmaxsw mm3,mm2 ;B4 |
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|
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|
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psraw mm0,15 ;A5 |
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psraw mm2,15 ;B5 |
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%if (%1) |
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movq [edx + %1 * 32 + 16-32], mm5 ;C9 |
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movq [edx + %1 * 32 + 24-32], mm7 ;D9 |
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%endif |
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|
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pmulhw mm1, [esi] ;A6 |
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pmulhw mm3, [esi] ;B6 |
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movq mm5, [ebx] ;C2 |
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movq mm7, [ebx] ;D2 |
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|
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nop |
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nop |
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pxor mm1, mm0 ;A7 |
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pxor mm3, mm2 ;B7 |
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|
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psubw mm5,mm4 ;C3 |
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psubw mm7,mm6 ;D3 |
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psubw mm1, mm0 ;A8 |
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psubw mm3, mm2 ;B8 |
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|
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|
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%if (%1 < 3) |
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db 0Fh, 6Fh, 44h, 21h, (%1 * 32 +32) ;movq mm0, [ecx + %1 * 32 +32] ;A1 |
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%endif |
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pmaxsw mm5,mm4 ;C4 |
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%if (%1 < 3) |
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db 0Fh, 6Fh, 54h, 21h, ( %1 * 32 +8+32) ;movq mm2, [ecx + %1 * 32 +8+32] ;B1 |
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%else |
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cmp esp,esp |
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%endif |
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pmaxsw mm7,mm6 ;D4 |
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|
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psraw mm4,15 ;C5 |
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psraw mm6,15 ;D5 |
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movq [byte edx + %1 * 32], mm1 ;A9 |
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movq [edx + %1 * 32+8], mm3 ;B9 |
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|
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|
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pmulhw mm5, [esi] ;C6 |
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pmulhw mm7, [esi] ;D6 |
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%if (%1 < 3) |
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movq mm1, [ebx] ;A2 |
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movq mm3, [ebx] ;B2 |
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%endif |
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%if (%1 == 0) |
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push ebp |
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%elif (%1 < 3) |
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nop |
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%endif |
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nop |
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%if (%1 == 3) |
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imul eax,[int_div+4*edi] |
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%endif |
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pxor mm5, mm4 ;C7 |
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pxor mm7, mm6 ;D7 |
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%endmacro |
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|
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|
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align ALIGN |
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cglobal quant_intra_3dne |
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quant_intra_3dne: |
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|
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mov eax, [esp + 12] ; quant |
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mov ecx, [esp + 8] ; data |
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mov edx, [esp + 4] ; coeff |
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cmp al, 1 |
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pxor mm1,mm1 |
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pxor mm3,mm3 |
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movq mm0, [ecx ] ; mm0 = [1st] |
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movq mm2, [ecx +8] |
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push esi |
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lea esi, [mmx_div + eax * 8 - 8] |
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|
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push ebx |
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mov ebx,mmzero |
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push edi |
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jz near .q1loop |
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quant_intra 0 |
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mov ebp, [esp + 16 + 16] ; dcscalar |
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movsx eax, word [byte ecx] ;x |
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quant_intra 1 |
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mov edi,eax |
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sar edi,31 ;sign(x) |
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shr ebp,byte 1 ; ebp = dcscalar /2 |
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quant_intra 2 |
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sub eax,edi ; x (+1) |
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xor ebp,edi ;sign(x) dcscalar /2 (-1) |
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mov edi,[esp + 16 + 16] |
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lea eax,[byte eax+ebp] ;x + sign(x) dcscalar /2 |
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mov ebp,[byte esp] |
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quant_intra 3 |
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psubw mm5, mm4 ;C8 |
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mov esi,[esp+12] |
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mov edi,[esp+4] |
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mov ebx,[esp+8] |
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add esp,byte 16 |
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sar eax,16 |
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mov [edx], ax ; coeff[0] = ax |
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psubw mm7, mm6 ;D8 |
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movq [edx + 3 * 32 + 16], mm5 ;C9 |
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movq [edx + 3 * 32 + 24], mm7 ;D9 |
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ret |
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align 16 |
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.q1loop |
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quant_intra1 0 |
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mov ebp, [esp + 16 + 16] ; dcscalar |
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movsx eax, word [byte ecx] ;x |
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quant_intra1 1 |
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mov edi,eax |
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sar edi,31 ;sign(x) |
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shr ebp,byte 1 ; ebp = dcscalar /2 |
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quant_intra1 2 |
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sub eax,edi ; x (+1) |
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xor ebp,edi ;sign(x) dcscalar /2 (-1) |
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mov edi,[esp + 16 + 16] |
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lea eax,[byte eax+ebp] ;x + sign(x) dcscalar /2 |
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mov ebp,[byte esp] |
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quant_intra1 3 |
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psubw mm5, mm4 ;C8 |
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mov esi,[dword esp+12] |
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mov edi,[esp+4] |
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mov ebx,[esp+8] |
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add esp,byte 16 |
395 |
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sar eax,16 |
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mov [edx], ax ; coeff[0] = ax |
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psubw mm7, mm6 ;D8 |
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movq [edx + 3 * 32 + 16], mm5 ;C9 |
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movq [edx + 3 * 32 + 24], mm7 ;D9 |
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ret |
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|
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|
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|
404 |
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|
405 |
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;=========================================================================== |
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; |
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; uint32_t quant_inter_3dne(int16_t * coeff, |
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; const int16_t const * data, |
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; const uint32_t quant); |
410 |
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; |
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;=========================================================================== |
412 |
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;This is Athlon-optimized code (ca 90 clk per call) |
413 |
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;Optimized by Jaan, 30 Nov 2002 |
414 |
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|
415 |
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|
416 |
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%macro quantinter 1 |
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movq mm1, [eax] ;A2 |
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psraw mm3,15 ;B6 |
419 |
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%if (%1) |
420 |
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psubw mm2, mm6 ;C10 |
421 |
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%endif |
422 |
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psubw mm1,mm0 ;A3 |
423 |
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pmulhw mm4, mm7 ; B7 |
424 |
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movq mm6, [ecx + %1*24+16] ; C1 |
425 |
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pmaxsw mm1,mm0 ;A4 |
426 |
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paddw mm5, mm4 ;B8 |
427 |
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%if (%1) |
428 |
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movq [edx + %1*24+16-24], mm2 ;C11 |
429 |
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%endif |
430 |
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psubusw mm1, [ebx] ; A5 mm0 -= sub (unsigned, dont go < 0) |
431 |
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pxor mm4, mm3 ;B9 |
432 |
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movq mm2, [eax] ;C2 |
433 |
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psraw mm0,15 ;A6 |
434 |
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psubw mm4, mm3 ;B10 |
435 |
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psubw mm2,mm6 ;C3 |
436 |
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pmulhw mm1, mm7 ; A7 mm0 = (mm0 / 2Q) >> 24 |
437 |
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movq mm3, [ecx + %1*24+8] ; B1 |
438 |
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pmaxsw mm2,mm6 ;C4 |
439 |
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paddw mm5, mm1 ; A8 sum += mm0 |
440 |
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%if (%1) |
441 |
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movq [edx + %1*24+8-24], mm4 ;B11 |
442 |
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%else |
443 |
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movq [edx + 120], mm4 ;B11 |
444 |
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%endif |
445 |
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psubusw mm2, [ebx] ;C5 |
446 |
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pxor mm1, mm0 ; A9 mm0 *= sign(mm0) |
447 |
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movq mm4, [eax] ;B2 |
448 |
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psraw mm6,15 ;C6 |
449 |
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psubw mm1, mm0 ;A10 undisplace |
450 |
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psubw mm4,mm3 ;B3 |
451 |
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pmulhw mm2, mm7 ; C7 |
452 |
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movq mm0, [ecx + %1*24+24] ;A1 mm0 = [1st] |
453 |
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pmaxsw mm4,mm3 ;B4 |
454 |
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paddw mm5, mm2 ;C8 |
455 |
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movq [byte edx + %1*24], mm1 ;A11 |
456 |
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psubusw mm4, [ebx] ;B5 |
457 |
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pxor mm2, mm6 ;C9 |
458 |
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%endmacro |
459 |
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|
460 |
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%macro quantinter1 1 |
461 |
|
movq mm0, [byte ecx + %1*16] ; mm0 = [1st] |
462 |
|
movq mm3, [ecx + %1*16+8] ; |
463 |
|
movq mm1, [eax] |
464 |
|
movq mm4, [eax] |
465 |
|
psubw mm1,mm0 |
466 |
|
psubw mm4,mm3 |
467 |
|
pmaxsw mm1,mm0 |
468 |
|
pmaxsw mm4,mm3 |
469 |
|
psubusw mm1, mm6 ; mm0 -= sub (unsigned, dont go < 0) |
470 |
|
psubusw mm4, mm6 ; |
471 |
|
psraw mm0,15 |
472 |
|
psraw mm3,15 |
473 |
|
psrlw mm1, 1 ; mm0 = (mm0 / 2Q) >> 16 |
474 |
|
psrlw mm4, 1 ; |
475 |
|
paddw mm5, mm1 ; sum += mm0 |
476 |
|
pxor mm1, mm0 ; mm0 *= sign(mm0) |
477 |
|
paddw mm5, mm4 |
478 |
|
pxor mm4, mm3 ; |
479 |
|
psubw mm1, mm0 ; undisplace |
480 |
|
psubw mm4, mm3 |
481 |
|
cmp esp,esp |
482 |
|
movq [byte edx + %1*16], mm1 |
483 |
|
movq [edx + %1*16+8], mm4 |
484 |
|
%endmacro |
485 |
|
|
486 |
|
align ALIGN |
487 |
|
cglobal quant_inter_3dne |
488 |
|
quant_inter_3dne |
489 |
|
|
490 |
|
mov edx, [esp + 4] ; coeff |
491 |
|
mov ecx, [esp + 8] ; data |
492 |
|
mov eax, [esp + 12] ; quant |
493 |
|
push ebx |
494 |
|
|
495 |
|
pxor mm5, mm5 ; sum |
496 |
|
nop |
497 |
|
lea ebx,[mmx_sub + eax * 8 - 8] ; sub |
498 |
|
movq mm7, [mmx_div + eax * 8 - 8] ; divider |
499 |
|
|
500 |
|
cmp al, 1 |
501 |
|
lea eax,[mmzero] |
502 |
|
jz near .q1loop |
503 |
|
cmp esp,esp |
504 |
|
align 8 |
505 |
|
movq mm3, [ecx + 120] ; B1 |
506 |
|
pxor mm4,mm4 ;B2 |
507 |
|
psubw mm4,mm3 ;B3 |
508 |
|
movq mm0, [ecx] ;A1 mm0 = [1st] |
509 |
|
pmaxsw mm4,mm3 ;B4 |
510 |
|
psubusw mm4, [ebx] ;B5 |
511 |
|
|
512 |
|
quantinter 0 |
513 |
|
quantinter 1 |
514 |
|
quantinter 2 |
515 |
|
quantinter 3 |
516 |
|
quantinter 4 |
517 |
|
psraw mm3,15 ;B6 |
518 |
|
psubw mm2, mm6 ;C10 |
519 |
|
pmulhw mm4, mm7 ; B7 |
520 |
|
paddw mm5, mm4 ;B8 |
521 |
|
pxor mm4, mm3 ;B9 |
522 |
|
psubw mm4, mm3 ;B10 |
523 |
|
movq [edx + 4*24+16], mm2 ;C11 |
524 |
|
pop ebx |
525 |
|
movq [edx + 4*24+8], mm4 ;B11 |
526 |
|
pmaddwd mm5, [plus_one] |
527 |
|
movq mm0, mm5 |
528 |
|
punpckhdq mm5, mm5 |
529 |
|
paddd mm0, mm5 |
530 |
|
movd eax, mm0 ; return sum |
531 |
|
ret |
532 |
|
|
533 |
|
align ALIGN |
534 |
|
.q1loop |
535 |
|
movq mm6,[byte ebx] |
536 |
|
quantinter1 0 |
537 |
|
quantinter1 1 |
538 |
|
quantinter1 2 |
539 |
|
quantinter1 3 |
540 |
|
quantinter1 4 |
541 |
|
quantinter1 5 |
542 |
|
quantinter1 6 |
543 |
|
quantinter1 7 |
544 |
|
|
545 |
|
pmaddwd mm5, [plus_one] |
546 |
|
movq mm0, mm5 |
547 |
|
psrlq mm5, 32 |
548 |
|
paddd mm0, mm5 |
549 |
|
movd eax, mm0 ; return sum |
550 |
|
|
551 |
|
pop ebx |
552 |
|
|
553 |
|
ret |
554 |
|
|
555 |
|
;=========================================================================== |
556 |
|
; |
557 |
|
; void dequant_intra_3dne(int16_t *data, |
558 |
|
; const int16_t const *coeff, |
559 |
|
; const uint32_t quant, |
560 |
|
; const uint32_t dcscalar); |
561 |
|
; |
562 |
|
;=========================================================================== |
563 |
|
|
564 |
|
; this is the same as dequant_inter_3dne, except that we're |
565 |
|
; saturating using 'pminsw' (saves 2 cycles/loop => ~5% faster) |
566 |
|
|
567 |
|
;This is Athlon-optimized code (ca 106 clk per call) |
568 |
|
|
569 |
|
%macro dequant 1 |
570 |
|
movq mm1, [ecx+%1*24] ;A2 ; c = coeff[i] |
571 |
|
psubw mm0,mm1 ;-c ;A3 (1st dep) |
572 |
|
%if (%1) |
573 |
|
paddw mm4,mm6 ; C11 mm6 free (4th+) |
574 |
|
%endif |
575 |
|
pmaxsw mm0,mm1 ;|c| ;A4 (2nd) |
576 |
|
%if (%1) |
577 |
|
mov ebp,ebp |
578 |
|
pminsw mm4,[ebx] ; C12 saturates to +2047 (5th+) 1ater |
579 |
|
%endif |
580 |
|
movq mm6,[esi] ;0 ;A5 mm6 in use |
581 |
|
pandn mm7,[eax] ; B9 offset = isZero ? 0 : quant_add (2nd) |
582 |
|
%if (%1) |
583 |
|
pxor mm5, mm4 ; C13 (6th+) 1later |
584 |
|
%endif |
585 |
|
movq mm4,[esi] ; C1 ;0 |
586 |
|
mov esp,esp |
587 |
|
pcmpeqw mm6, [ecx+%1*24] ;A6 (c ==0) ? -1 : 0 (1st) |
588 |
|
align 4 |
589 |
|
psraw mm1,15 ; sign(c) ;A7 (2nd) |
590 |
|
%if (%1) |
591 |
|
movq [edx+%1*24+16-24], mm5 ; C14 (7th) 2later |
592 |
|
%endif |
593 |
|
paddw mm7,mm3 ; B10 offset +negate back (3rd) |
594 |
|
pmullw mm0, [edi] ;*= 2Q ;A8 (3rd+) |
595 |
|
paddw mm2,mm7 ; B11 mm7 free (4th+) |
596 |
|
lea ebp,[byte ebp] |
597 |
|
movq mm5, [ecx+%1*24+16] ;C2 ; c = coeff[i] |
598 |
|
psubw mm4,mm5 ;-c ;C3 (1st dep) |
599 |
|
pandn mm6,[eax] ; A9 offset = isZero ? 0 : quant_add (2nd) |
600 |
|
pminsw mm2,[ebx] ; B12 saturates to +2047 (5th+) |
601 |
|
pxor mm3, mm2 ; B13 (6th+) |
602 |
|
movq mm2,[byte esi] ; B1 ;0 |
603 |
|
%if (%1) |
604 |
|
movq [edx+%1*24+8-24], mm3 ; B14 (7th) |
605 |
|
%else |
606 |
|
movq [edx+120], mm3 |
607 |
|
%endif |
608 |
|
pmaxsw mm4,mm5 ;|c| ;C4 (2nd) |
609 |
|
paddw mm6,mm1 ; A10 offset +negate back (3rd) |
610 |
|
movq mm3, [ecx+%1*24 + 8] ;B2 ; c = coeff[i] |
611 |
|
psubw mm2,mm3 ;-c ;B3 (1st dep) |
612 |
|
paddw mm0,mm6 ; A11 mm6 free (4th+) |
613 |
|
movq mm6,[byte esi] ;0 ;C5 mm6 in use |
614 |
|
pcmpeqw mm6, [ecx+%1*24+16] ;C6 (c ==0) ? -1 : 0 (1st) |
615 |
|
pminsw mm0,[ebx] ; A12 saturates to +2047 (5th+) |
616 |
|
pmaxsw mm2,mm3 ;|c| ;B4 (2nd) |
617 |
|
pxor mm1, mm0 ; A13 (6th+) |
618 |
|
pmullw mm4, [edi] ;*= 2Q ;C8 (3rd+) |
619 |
|
psraw mm5,15 ; sign(c) ;C7 (2nd) |
620 |
|
movq mm7,[byte esi] ;0 ;B5 mm7 in use |
621 |
|
pcmpeqw mm7, [ecx+%1*24 + 8] ;B6 (c ==0) ? -1 : 0 (1st) |
622 |
|
%if (%1 < 4) |
623 |
|
movq mm0,[byte esi] ; A1 ;0 |
624 |
|
%endif |
625 |
|
pandn mm6,[byte eax] ; C9 offset = isZero ? 0 : quant_add (2nd) |
626 |
|
psraw mm3,15 ; sign(c) ;B7 (2nd) |
627 |
|
movq [byte edx+%1*24], mm1 ; A14 (7th) |
628 |
|
paddw mm6,mm5 ; C10 offset +negate back (3rd) |
629 |
|
pmullw mm2, [edi] ;*= 2Q ;B8 (3rd+) |
630 |
|
mov esp,esp |
631 |
|
%endmacro |
632 |
|
|
633 |
|
|
634 |
|
align ALIGN |
635 |
|
cglobal dequant_intra_3dne |
636 |
|
dequant_intra_3dne: |
637 |
|
mov ecx, [esp+ 8] ; coeff |
638 |
|
mov eax, [esp+12] ; quant |
639 |
|
pxor mm0,mm0 |
640 |
|
pxor mm2,mm2 |
641 |
|
push edi |
642 |
|
push ebx |
643 |
|
lea edi,[mmx_mul + eax*8 - 8] ; 2*quant |
644 |
|
push ebp |
645 |
|
mov ebx,mmx_2047 |
646 |
|
movsx ebp,word [ecx] |
647 |
|
lea eax,[mmx_add + eax*8 - 8] ; quant or quant-1 |
648 |
|
push esi |
649 |
|
mov esi,mmzero |
650 |
|
pxor mm7,mm7 |
651 |
|
movq mm3, [ecx+120] ;B2 ; c = coeff[i] |
652 |
|
pcmpeqw mm7, [ecx+120] ;B6 (c ==0) ? -1 : 0 (1st) |
653 |
|
|
654 |
|
imul ebp,[esp+16+16] ; dcscalar |
655 |
|
psubw mm2,mm3 ;-c ;B3 (1st dep) |
656 |
|
pmaxsw mm2,mm3 ;|c| ;B4 (2nd) |
657 |
|
pmullw mm2, [edi] ;*= 2Q ;B8 (3rd+) |
658 |
|
psraw mm3,15 ; sign(c) ;B7 (2nd) |
659 |
|
mov edx, [esp+ 4+16] ; data |
660 |
|
align 8 |
661 |
|
dequant 0 |
662 |
|
cmp ebp,-2048 |
663 |
|
mov esp,esp |
664 |
|
dequant 1 |
665 |
|
cmovl ebp,[int_2048] |
666 |
|
nop |
667 |
|
dequant 2 |
668 |
|
cmp ebp,2047 |
669 |
|
mov esp,esp |
670 |
|
dequant 3 |
671 |
|
cmovg ebp,[int2047] |
672 |
|
nop |
673 |
|
dequant 4 |
674 |
|
|
675 |
|
paddw mm4,mm6 ; C11 mm6 free (4th+) |
676 |
|
pminsw mm4,[ebx] ; C12 saturates to +2047 (5th+) |
677 |
|
pandn mm7,[eax] ; B9 offset = isZero ? 0 : quant_add (2nd) |
678 |
|
mov eax,ebp |
679 |
|
mov esi,[esp] |
680 |
|
mov ebp,[esp+4] |
681 |
|
pxor mm5, mm4 ; C13 (6th+) |
682 |
|
paddw mm7,mm3 ; B10 offset +negate back (3rd) |
683 |
|
movq [edx+4*24+16], mm5 ; C14 (7th) |
684 |
|
paddw mm2,mm7 ; B11 mm7 free (4th+) |
685 |
|
pminsw mm2,[ebx] ; B12 saturates to +2047 (5th+) |
686 |
|
mov ebx,[esp+8] |
687 |
|
mov edi,[esp+12] |
688 |
|
add esp,byte 16 |
689 |
|
pxor mm3, mm2 ; B13 (6th+) |
690 |
|
movq [edx+4*24+8], mm3 ; B14 (7th) |
691 |
|
mov [edx], ax |
692 |
|
ret |
693 |
|
|
694 |
|
;=========================================================================== |
695 |
|
; |
696 |
|
; void dequant_inter_3dne(int16_t * data, |
697 |
|
; const int16_t * const coeff, |
698 |
|
; const uint32_t quant); |
699 |
|
; |
700 |
|
;=========================================================================== |
701 |
|
|
702 |
|
; this is the same as dequant_inter_3dne, |
703 |
|
; except that we're saturating using 'pminsw' (saves 2 cycles/loop) |
704 |
|
;This is Athlon-optimized code (ca 100 clk per call) |
705 |
|
;Optimized by Jaan, 30 Nov 2002 |
706 |
|
|
707 |
|
align ALIGN |
708 |
|
cglobal dequant_inter_3dne |
709 |
|
dequant_inter_3dne: |
710 |
|
|
711 |
|
mov ecx, [esp+ 8] ; coeff |
712 |
|
mov eax, [esp+12] ; quant |
713 |
|
pxor mm0,mm0 |
714 |
|
pxor mm2,mm2 |
715 |
|
push edi |
716 |
|
push ebx |
717 |
|
push esi |
718 |
|
lea edi,[mmx_mul + eax*8 - 8] ; 2*quant |
719 |
|
mov ebx,mmx_2047 |
720 |
|
pxor mm7,mm7 |
721 |
|
movq mm3, [ecx+120] ;B2 ; c = coeff[i] |
722 |
|
pcmpeqw mm7, [ecx+120] ;B6 (c ==0) ? -1 : 0 (1st) |
723 |
|
lea eax,[mmx_add + eax*8 - 8] ; quant or quant-1 |
724 |
|
psubw mm2,mm3 ;-c ;B3 (1st dep) |
725 |
|
mov esi,mmzero |
726 |
|
pmaxsw mm2,mm3 ;|c| ;B4 (2nd) |
727 |
|
pmullw mm2, [edi] ;*= 2Q ;B8 (3rd+) |
728 |
|
psraw mm3,15 ; sign(c) ;B7 (2nd) |
729 |
|
mov edx, [dword esp+ 4+12] ; data |
730 |
|
align 8 |
731 |
|
dequant 0 |
732 |
|
dequant 1 |
733 |
|
dequant 2 |
734 |
|
dequant 3 |
735 |
|
dequant 4 |
736 |
|
|
737 |
|
paddw mm4,mm6 ; C11 mm6 free (4th+) |
738 |
|
pminsw mm4,[ebx] ; C12 saturates to +2047 (5th+) |
739 |
|
pandn mm7,[eax] ; B9 offset = isZero ? 0 : quant_add (2nd) |
740 |
|
mov esi,[esp] |
741 |
|
pxor mm5, mm4 ; C13 (6th+) |
742 |
|
paddw mm7,mm3 ; B10 offset +negate back (3rd) |
743 |
|
movq [edx+4*24+16], mm5 ; C14 (7th) |
744 |
|
paddw mm2,mm7 ; B11 mm7 free (4th+) |
745 |
|
pminsw mm2,[ebx] ; B12 saturates to +2047 (5th+) |
746 |
|
mov ebx,[esp+4] |
747 |
|
mov edi,[esp+8] |
748 |
|
add esp,byte 12 |
749 |
|
pxor mm3, mm2 ; B13 (6th+) |
750 |
|
movq [edx+4*24+8], mm3 ; B14 (7th) |
751 |
|
ret |