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;/************************************************************************** |
| 2 |
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; * |
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; * XVID MPEG-4 VIDEO CODEC |
| 4 |
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; * - mmx quantization/dequantization - |
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; * |
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; * Copyright(C) 2001-2003 XviD Team <xvid-devel@xvid.org> |
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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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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; * |
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; * $Id$ |
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; * |
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; *************************************************************************/ |
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;/************************************************************************** |
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; * quant4 bugs have been fixed: (a) overflow bug for matrix elements |
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; * equal to 1 or 2 is fixed by substituting pmulhw with pmulhuw (iSSE) |
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; * and using multiplier 0ffffh instead of 10001h (for matrix element = 1; |
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; * in that case, 1 is added before multiplying, that additional 1 comes |
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; * from intra_matrix1; (b) rounding error for large coefficients and matrix |
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; * elements is fixed by two-step approach: first approximation (rounded |
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; * down) is found as usual; the result is multiplied by the matrix element |
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; * and mismatch is used to calculate the correction. |
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; *************************************************************************/ |
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; _3dne functions are compatible with iSSE, but are optimized specifically |
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; for 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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|
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; data/text alignment |
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%define ALIGN 8 |
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%define SATURATE |
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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=8 |
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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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|
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%macro cextern 1 |
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%ifdef PREFIX |
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extern _%1 |
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%define %1 _%1 |
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%else |
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extern %1 |
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%endif |
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%endmacro |
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align 8 |
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mmzero dd 0,0 |
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|
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mmx_one times 4 dw 1 |
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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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;=========================================================================== |
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|
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align ALIGN |
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mmx_divs ;i>2 |
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%assign i 1 |
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%rep 31 |
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times 4 dw ((1 << 15) / i + 1) |
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%assign i i+1 |
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%endrep |
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|
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align ALIGN |
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mmx_div ;i>2 |
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%assign i 1 |
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%rep 31 |
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times 4 dw ((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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|
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;=========================================================================== |
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; |
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; intra matrix |
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; |
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;=========================================================================== |
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|
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%macro FIXX 1 |
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dw (1 << 16) / (%1) + 1 |
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%endmacro |
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|
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cextern intra_matrix_fixl |
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cextern intra_matrix_fix |
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cextern intra_matrix1 |
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cextern intra_matrix |
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|
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;=========================================================================== |
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; |
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; inter matrix |
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; |
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;=========================================================================== |
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|
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cextern inter_matrix1 |
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cextern inter_matrix |
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cextern inter_matrix_fix |
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cextern inter_matrix_fixl |
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|
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|
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%define VM18P 3 |
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%define VM18Q 4 |
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%define nop4 db 08Dh,074h,026h,0 |
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%define nop3 add esp,byte 0 |
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%define nop2 mov esp,esp |
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%define nop7 db 08dh,02ch,02dh,0,0,0,0 |
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%define nop6 add ebp,dword 0 |
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|
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;=========================================================================== |
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; |
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; quantd table |
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; |
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;=========================================================================== |
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|
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|
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quantd |
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%assign i 1 |
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%rep 31 |
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times 4 dw (((VM18P*i) + (VM18Q/2)) / VM18Q) |
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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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|
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mmx_mul_quant |
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%assign i 1 |
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%rep 31 |
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times 4 dw 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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; saturation limits |
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; |
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;=========================================================================== |
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|
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align 16 |
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|
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mmx_32767_minus_2047 times 4 dw (32767-2047) |
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mmx_32768_minus_2048 times 4 dw (32768-2048) |
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mmx_2047 times 4 dw 2047 |
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mmx_minus_2048 times 4 dw (-2048) |
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zero times 4 dw 0 |
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|
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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 << 17) / ( i) + 1 |
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%assign i i+1 |
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%endrep |
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|
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section .text |
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|
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;=========================================================================== |
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; |
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; void quant4_intra_xmm(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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|
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align ALIGN |
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cglobal quant_mpeg_intra_xmm |
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quant_mpeg_intra_xmm: |
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mov eax, [esp + 8] ; data |
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mov ecx, [esp + 12] ; quant |
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mov edx, [esp + 4] ; coeff |
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push esi |
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push edi |
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push ebx |
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nop |
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mov edi,mmzero |
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mov esi,-14 |
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pxor mm0,mm0 |
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pxor mm3,mm3 |
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cmp ecx,byte 1 |
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je near .q1loop |
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cmp ecx,byte 19 |
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jg near .lloop |
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nop6 |
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|
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|
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align ALIGN |
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.loop |
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movq mm1, [eax + 8*esi+112] ; mm0 = [1st] |
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psubw mm0, mm1 ;-mm1 |
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movq mm4, [eax + 8*esi + 120] ; |
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psubw mm3, mm4 ;-mm4 |
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pmaxsw mm0, mm1 ;|src| |
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pmaxsw mm3,mm4 |
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nop2 |
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psraw mm1, 15 ;sign src |
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psraw mm4, 15 |
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psllw mm0, 4 ;level << 4 ; |
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psllw mm3, 4 |
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paddw mm0, [intra_matrix1 + 8*esi+112] |
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paddw mm3, [intra_matrix1 + 8*esi+120] |
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movq mm5, [intra_matrix_fixl + 8*esi+112] |
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movq mm7, [intra_matrix_fixl + 8*esi+120] |
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pmulhuw mm5, mm0 |
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pmulhuw mm7, mm3 |
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mov esp, esp |
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movq mm2, [intra_matrix + 8*esi+112] |
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movq mm6, [intra_matrix + 8*esi+120] |
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pmullw mm2, mm5 |
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pmullw mm6, mm7 |
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psubw mm0, mm2 |
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psubw mm3, mm6 |
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nop4 |
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movq mm2, [quantd + ecx * 8 - 8] |
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movq mm6, [mmx_divs + ecx * 8 - 8] |
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paddw mm5, mm2 |
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paddw mm7, mm2 |
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mov esp, esp |
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pmulhuw mm0, [intra_matrix_fix + 8*esi+112] |
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pmulhuw mm3, [intra_matrix_fix + 8*esi+120] |
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paddw mm5, mm0 |
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paddw mm7, mm3 |
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movq mm0, [edi] |
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movq mm3, [edi] |
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pmulhuw mm5, mm6 ; mm0 = (mm0 / 2Q) >> 16 |
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pmulhuw mm7, mm6 ; (level + quantd) / quant (0<quant<32) |
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pxor mm5, mm1 ; mm0 *= sign(mm0) |
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pxor mm7, mm4 ; |
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psubw mm5, mm1 ; undisplace |
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psubw mm7, mm4 ; |
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movq [edx + 8*esi+112], mm5 |
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movq [edx + 8*esi +120], mm7 |
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add esi, byte 2 |
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jng near .loop |
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|
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.done |
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; calculate data[0] // (int32_t)dcscalar) |
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mov esi, [esp + 12 + 16] ; dcscalar |
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movsx ecx, word [eax] |
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mov edi, ecx |
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mov edx, [esp + 12 + 16] |
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shr edx, 1 ; ebx = dcscalar /2 |
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sar edi, 31 ; cdq is vectorpath |
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xor edx, edi ; ebx = eax V -eax -1 |
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sub ecx, edi |
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add ecx, edx |
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mov edx, [dword esp + 12 + 4] |
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mov esi, [int_div+4*esi] |
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imul ecx, esi |
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sar ecx, 17 |
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lea ebx, [byte ecx + 1] |
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cmovs ecx, ebx |
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; idiv cx ; ecx = edi:ecx / dcscalar |
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|
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mov ebx, [esp] |
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mov edi, [esp+4] |
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mov esi, [esp+8] |
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add esp, byte 12 |
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mov [edx], cx ; coeff[0] = ax |
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|
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ret |
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|
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align ALIGN |
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.q1loop |
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movq mm1, [eax + 8*esi+112] ; mm0 = [1st] |
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psubw mm0, mm1 ;-mm1 |
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movq mm4, [eax + 8*esi+120] ; |
| 298 |
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psubw mm3, mm4 ;-mm4 |
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pmaxsw mm0, mm1 ;|src| |
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pmaxsw mm3, mm4 |
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nop2 |
| 302 |
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psraw mm1, 15 ;sign src |
| 303 |
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psraw mm4, 15 |
| 304 |
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psllw mm0, 4 ; level << 4 |
| 305 |
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psllw mm3, 4 |
| 306 |
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paddw mm0, [intra_matrix1 + 8*esi+112] ;mm0 is to be divided |
| 307 |
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paddw mm3, [intra_matrix1 + 8*esi+120] ;intra1 contains fix for division by 1 |
| 308 |
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movq mm5, [intra_matrix_fixl + 8*esi+112] ;with rounding down |
| 309 |
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movq mm7, [intra_matrix_fixl + 8*esi+120] |
| 310 |
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pmulhuw mm5, mm0 |
| 311 |
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pmulhuw mm7, mm3 ;mm7: first approx of division |
| 312 |
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mov esp, esp |
| 313 |
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movq mm2, [intra_matrix + 8*esi+112] |
| 314 |
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movq mm6, [intra_matrix + 8*esi+120] ; divs for q<=16 |
| 315 |
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pmullw mm2, mm5 ;test value <= original |
| 316 |
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pmullw mm6, mm7 |
| 317 |
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psubw mm0, mm2 ;mismatch |
| 318 |
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psubw mm3, mm6 |
| 319 |
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nop4 |
| 320 |
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movq mm2, [quantd + ecx * 8 - 8] |
| 321 |
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paddw mm5, mm2 ;first approx with quantd |
| 322 |
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paddw mm7, mm2 |
| 323 |
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mov esp, esp |
| 324 |
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pmulhuw mm0, [intra_matrix_fix + 8*esi+112] ;correction |
| 325 |
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pmulhuw mm3, [intra_matrix_fix + 8*esi+120] |
| 326 |
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paddw mm5, mm0 ;final result with quantd |
| 327 |
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paddw mm7, mm3 |
| 328 |
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movq mm0, [edi] |
| 329 |
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movq mm3, [edi] |
| 330 |
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mov esp, esp |
| 331 |
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psrlw mm5, 1 ; (level + quantd) /2 (quant = 1) |
| 332 |
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psrlw mm7, 1 |
| 333 |
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pxor mm5, mm1 ; mm0 *= sign(mm0) |
| 334 |
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pxor mm7, mm4 ; |
| 335 |
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psubw mm5, mm1 ; undisplace |
| 336 |
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psubw mm7, mm4 ; |
| 337 |
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movq [edx + 8*esi+112], mm5 |
| 338 |
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movq [edx + 8*esi +120], mm7 |
| 339 |
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add esi, byte 2 |
| 340 |
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jng near .q1loop |
| 341 |
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jmp near .done |
| 342 |
|
|
| 343 |
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align 8 |
| 344 |
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.lloop |
| 345 |
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movq mm1, [eax + 8*esi+112] ; mm0 = [1st] |
| 346 |
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psubw mm0, mm1 ;-mm1 |
| 347 |
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movq mm4, [eax + 8*esi+120] ; |
| 348 |
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psubw mm3, mm4 ;-mm4 |
| 349 |
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pmaxsw mm0, mm1 ;|src| |
| 350 |
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pmaxsw mm3, mm4 |
| 351 |
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nop2 |
| 352 |
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psraw mm1, 15 ;sign src |
| 353 |
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psraw mm4, 15 |
| 354 |
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psllw mm0, 4 ; level << 4 |
| 355 |
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psllw mm3, 4 ; |
| 356 |
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paddw mm0, [intra_matrix1 + 8*esi+112] ;mm0 is to be divided intra1 contains fix for division by 1 |
| 357 |
|
paddw mm3, [intra_matrix1 + 8*esi+120] |
| 358 |
|
movq mm5, [intra_matrix_fixl + 8*esi+112] |
| 359 |
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movq mm7, [intra_matrix_fixl + 8*esi+120] |
| 360 |
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pmulhuw mm5, mm0 |
| 361 |
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pmulhuw mm7, mm3 ;mm7: first approx of division |
| 362 |
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mov esp, esp |
| 363 |
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movq mm2, [intra_matrix + 8*esi+112] |
| 364 |
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movq mm6, [intra_matrix + 8*esi+120] |
| 365 |
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pmullw mm2, mm5 ;test value <= original |
| 366 |
|
pmullw mm6, mm7 |
| 367 |
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psubw mm0, mm2 ;mismatch |
| 368 |
|
psubw mm3, mm6 |
| 369 |
|
nop4 |
| 370 |
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movq mm2, [quantd + ecx * 8 - 8] |
| 371 |
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movq mm6, [mmx_div + ecx * 8 - 8] ; divs for q<=16 |
| 372 |
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paddw mm5, mm2 ;first approx with quantd |
| 373 |
|
paddw mm7, mm2 |
| 374 |
|
mov esp, esp |
| 375 |
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pmulhuw mm0, [intra_matrix_fix + 8*esi+112] ;correction |
| 376 |
|
pmulhuw mm3, [intra_matrix_fix + 8*esi+120] |
| 377 |
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paddw mm5, mm0 ;final result with quantd |
| 378 |
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paddw mm7, mm3 |
| 379 |
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movq mm0, [edi] |
| 380 |
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movq mm3, [edi] |
| 381 |
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mov esp, esp |
| 382 |
|
pmulhuw mm5, mm6 ; mm0 = (mm0 / 2Q) >> 16 |
| 383 |
|
pmulhuw mm7, mm6 ; (level + quantd) / quant (0<quant<32) |
| 384 |
|
psrlw mm5, 1 ; (level + quantd) / (2*quant) |
| 385 |
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psrlw mm7, 1 |
| 386 |
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pxor mm5, mm1 ; mm0 *= sign(mm0) |
| 387 |
|
pxor mm7, mm4 ; |
| 388 |
|
psubw mm5, mm1 ; undisplace |
| 389 |
|
psubw mm7, mm4 ; |
| 390 |
|
movq [edx + 8*esi+112], mm5 |
| 391 |
|
movq [edx + 8*esi +120], mm7 |
| 392 |
|
add esi,byte 2 |
| 393 |
|
jng near .lloop |
| 394 |
|
jmp near .done |
| 395 |
|
|
| 396 |
|
;=========================================================================== |
| 397 |
|
; |
| 398 |
|
; uint32_t quant4_inter_xmm(int16_t * coeff, |
| 399 |
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; const int16_t const * data, |
| 400 |
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; const uint32_t quant); |
| 401 |
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; |
| 402 |
|
;=========================================================================== |
| 403 |
|
|
| 404 |
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align ALIGN |
| 405 |
|
cglobal quant_mpeg_inter_xmm |
| 406 |
|
quant_mpeg_inter_xmm: |
| 407 |
|
mov eax, [esp + 8] ; data |
| 408 |
|
mov ecx, [esp + 12] ; quant |
| 409 |
|
mov edx, [esp + 4] ; coeff |
| 410 |
|
push esi |
| 411 |
|
push edi |
| 412 |
|
push ebx |
| 413 |
|
nop |
| 414 |
|
mov edi,mmzero |
| 415 |
|
mov esi,-14 |
| 416 |
|
mov ebx,esp |
| 417 |
|
sub esp,byte 24 |
| 418 |
|
lea ebx,[esp+8] |
| 419 |
|
and ebx,byte -8 ;align 8 |
| 420 |
|
pxor mm0,mm0 |
| 421 |
|
pxor mm3,mm3 |
| 422 |
|
movq [byte ebx],mm0 |
| 423 |
|
db 0Fh, 7Fh, 44h, 23h, 8 ;movq [ebx+8],mm0 |
| 424 |
|
cmp ecx,byte 1 |
| 425 |
|
je near .q1loop |
| 426 |
|
cmp ecx,byte 19 |
| 427 |
|
jg near .lloop |
| 428 |
|
nop |
| 429 |
|
|
| 430 |
|
align ALIGN |
| 431 |
|
.loop |
| 432 |
|
movq mm1, [eax + 8*esi+112] ; mm0 = [1st] |
| 433 |
|
psubw mm0,mm1 ;-mm1 |
| 434 |
|
movq mm4, [eax + 8*esi + 120] ; |
| 435 |
|
psubw mm3,mm4 ;-mm4 |
| 436 |
|
pmaxsw mm0,mm1 ;|src| |
| 437 |
|
pmaxsw mm3,mm4 |
| 438 |
|
nop2 |
| 439 |
|
psraw mm1,15 ;sign src |
| 440 |
|
psraw mm4,15 |
| 441 |
|
psllw mm0, 4 ; level << 4 |
| 442 |
|
psllw mm3, 4 ; |
| 443 |
|
paddw mm0, [inter_matrix1 + 8*esi+112] |
| 444 |
|
paddw mm3, [inter_matrix1 + 8*esi+120] |
| 445 |
|
movq mm5,[inter_matrix_fixl + 8*esi+112] |
| 446 |
|
movq mm7,[inter_matrix_fixl + 8*esi+120] |
| 447 |
|
pmulhuw mm5,mm0 |
| 448 |
|
pmulhuw mm7,mm3 |
| 449 |
|
mov esp,esp |
| 450 |
|
movq mm2,[inter_matrix + 8*esi+112] |
| 451 |
|
movq mm6,[inter_matrix + 8*esi+120] |
| 452 |
|
pmullw mm2,mm5 |
| 453 |
|
pmullw mm6,mm7 |
| 454 |
|
psubw mm0,mm2 |
| 455 |
|
psubw mm3,mm6 |
| 456 |
|
movq mm2,[byte ebx] |
| 457 |
|
movq mm6,[mmx_divs + ecx * 8 - 8] |
| 458 |
|
pmulhuw mm0,[inter_matrix_fix + 8*esi+112] |
| 459 |
|
pmulhuw mm3,[inter_matrix_fix + 8*esi+120] |
| 460 |
|
paddw mm2,[ebx+8] ;sum |
| 461 |
|
paddw mm5,mm0 |
| 462 |
|
paddw mm7,mm3 |
| 463 |
|
movq mm0,[edi] |
| 464 |
|
movq mm3,[edi] |
| 465 |
|
pmulhuw mm5, mm6 ; mm0 = (mm0 / 2Q) >> 16 |
| 466 |
|
pmulhuw mm7, mm6 ; (level ) / quant (0<quant<32) |
| 467 |
|
add esi,byte 2 |
| 468 |
|
paddw mm2,mm5 ;sum += x1 |
| 469 |
|
movq [ebx],mm7 ;store x2 |
| 470 |
|
pxor mm5, mm1 ; mm0 *= sign(mm0) |
| 471 |
|
pxor mm7, mm4 ; |
| 472 |
|
psubw mm5, mm1 ; undisplace |
| 473 |
|
psubw mm7, mm4 ; |
| 474 |
|
db 0Fh, 7Fh, 54h, 23h, 08 ;movq [ebx+8],mm2 ;store sum |
| 475 |
|
movq [edx + 8*esi+112-16], mm5 |
| 476 |
|
movq [edx + 8*esi +120-16], mm7 |
| 477 |
|
jng near .loop |
| 478 |
|
|
| 479 |
|
.done |
| 480 |
|
; calculate data[0] // (int32_t)dcscalar) |
| 481 |
|
paddw mm2,[ebx] |
| 482 |
|
mov ebx,[esp+24] |
| 483 |
|
mov edi,[esp+4+24] |
| 484 |
|
mov esi,[esp+8+24] |
| 485 |
|
add esp,byte 12+24 |
| 486 |
|
pmaddwd mm2, [mmx_one] |
| 487 |
|
punpckldq mm0,mm2 ;get low dw to mm0:high |
| 488 |
|
paddd mm0,mm2 |
| 489 |
|
punpckhdq mm0,mm0 ;get result to low |
| 490 |
|
movd eax, mm0 |
| 491 |
|
|
| 492 |
|
ret |
| 493 |
|
|
| 494 |
|
align ALIGN |
| 495 |
|
.q1loop |
| 496 |
|
movq mm1, [eax + 8*esi+112] ; mm0 = [1st] |
| 497 |
|
psubw mm0,mm1 ;-mm1 |
| 498 |
|
movq mm4, [eax + 8*esi+120] ; |
| 499 |
|
psubw mm3,mm4 ;-mm4 |
| 500 |
|
pmaxsw mm0,mm1 ;|src| |
| 501 |
|
pmaxsw mm3,mm4 |
| 502 |
|
nop2 |
| 503 |
|
psraw mm1,15 ;sign src |
| 504 |
|
psraw mm4,15 |
| 505 |
|
psllw mm0, 4 ; level << 4 |
| 506 |
|
psllw mm3, 4 |
| 507 |
|
paddw mm0, [inter_matrix1 + 8*esi+112] ;mm0 is to be divided |
| 508 |
|
paddw mm3, [inter_matrix1 + 8*esi+120] ; inter1 contains fix for division by 1 |
| 509 |
|
movq mm5,[inter_matrix_fixl + 8*esi+112] ;with rounding down |
| 510 |
|
movq mm7,[inter_matrix_fixl + 8*esi+120] |
| 511 |
|
pmulhuw mm5,mm0 |
| 512 |
|
pmulhuw mm7,mm3 ;mm7: first approx of division |
| 513 |
|
mov esp,esp |
| 514 |
|
movq mm2,[inter_matrix + 8*esi+112] |
| 515 |
|
movq mm6,[inter_matrix + 8*esi+120] ; divs for q<=16 |
| 516 |
|
pmullw mm2,mm5 ;test value <= original |
| 517 |
|
pmullw mm6,mm7 |
| 518 |
|
psubw mm0,mm2 ;mismatch |
| 519 |
|
psubw mm3,mm6 |
| 520 |
|
movq mm2,[byte ebx] |
| 521 |
|
pmulhuw mm0,[inter_matrix_fix + 8*esi+112] ;correction |
| 522 |
|
pmulhuw mm3,[inter_matrix_fix + 8*esi+120] |
| 523 |
|
paddw mm2,[ebx+8] ;sum |
| 524 |
|
paddw mm5,mm0 ;final result |
| 525 |
|
paddw mm7,mm3 |
| 526 |
|
movq mm0,[edi] |
| 527 |
|
movq mm3,[edi] |
| 528 |
|
psrlw mm5, 1 ; (level ) /2 (quant = 1) |
| 529 |
|
psrlw mm7, 1 |
| 530 |
|
add esi,byte 2 |
| 531 |
|
paddw mm2,mm5 ;sum += x1 |
| 532 |
|
movq [ebx],mm7 ;store x2 |
| 533 |
|
pxor mm5, mm1 ; mm0 *= sign(mm0) |
| 534 |
|
pxor mm7, mm4 ; |
| 535 |
|
psubw mm5, mm1 ; undisplace |
| 536 |
|
psubw mm7, mm4 ; |
| 537 |
|
movq [ebx+8],mm2 ;store sum |
| 538 |
|
movq [edx + 8*esi+112-16], mm5 |
| 539 |
|
movq [edx + 8*esi +120-16], mm7 |
| 540 |
|
jng near .q1loop |
| 541 |
|
jmp near .done |
| 542 |
|
|
| 543 |
|
align 8 |
| 544 |
|
.lloop |
| 545 |
|
movq mm1, [eax + 8*esi+112] ; mm0 = [1st] |
| 546 |
|
psubw mm0,mm1 ;-mm1 |
| 547 |
|
movq mm4, [eax + 8*esi+120] ; |
| 548 |
|
psubw mm3,mm4 ;-mm4 |
| 549 |
|
pmaxsw mm0,mm1 ;|src| |
| 550 |
|
pmaxsw mm3,mm4 |
| 551 |
|
nop2 |
| 552 |
|
psraw mm1,15 ;sign src |
| 553 |
|
psraw mm4,15 |
| 554 |
|
psllw mm0, 4 ; level << 4 |
| 555 |
|
psllw mm3, 4 ; |
| 556 |
|
paddw mm0, [inter_matrix1 + 8*esi+112] ;mm0 is to be divided inter1 contains fix for division by 1 |
| 557 |
|
paddw mm3, [inter_matrix1 + 8*esi+120] |
| 558 |
|
movq mm5,[inter_matrix_fixl + 8*esi+112] |
| 559 |
|
movq mm7,[inter_matrix_fixl + 8*esi+120] |
| 560 |
|
pmulhuw mm5,mm0 |
| 561 |
|
pmulhuw mm7,mm3 ;mm7: first approx of division |
| 562 |
|
mov esp,esp |
| 563 |
|
movq mm2,[inter_matrix + 8*esi+112] |
| 564 |
|
movq mm6,[inter_matrix + 8*esi+120] |
| 565 |
|
pmullw mm2,mm5 ;test value <= original |
| 566 |
|
pmullw mm6,mm7 |
| 567 |
|
psubw mm0,mm2 ;mismatch |
| 568 |
|
psubw mm3,mm6 |
| 569 |
|
movq mm2,[byte ebx] |
| 570 |
|
movq mm6,[mmx_div + ecx * 8 - 8] ; divs for q<=16 |
| 571 |
|
pmulhuw mm0,[inter_matrix_fix + 8*esi+112] ;correction |
| 572 |
|
pmulhuw mm3,[inter_matrix_fix + 8*esi+120] |
| 573 |
|
paddw mm2,[ebx+8] ;sum |
| 574 |
|
paddw mm5,mm0 ;final result |
| 575 |
|
paddw mm7,mm3 |
| 576 |
|
movq mm0,[edi] |
| 577 |
|
movq mm3,[edi] |
| 578 |
|
pmulhuw mm5, mm6 ; mm0 = (mm0 / 2Q) >> 16 |
| 579 |
|
pmulhuw mm7, mm6 ; (level ) / quant (0<quant<32) |
| 580 |
|
add esi,byte 2 |
| 581 |
|
psrlw mm5, 1 ; (level ) / (2*quant) |
| 582 |
|
paddw mm2,mm5 ;sum += x1 |
| 583 |
|
psrlw mm7, 1 |
| 584 |
|
movq [ebx],mm7 ;store x2 |
| 585 |
|
pxor mm5, mm1 ; mm0 *= sign(mm0) |
| 586 |
|
pxor mm7, mm4 ; |
| 587 |
|
psubw mm5, mm1 ; undisplace |
| 588 |
|
psubw mm7, mm4 ; |
| 589 |
|
db 0Fh, 7Fh, 54h, 23h, 08 ;movq [ebx+8],mm2 ;store sum |
| 590 |
|
movq [edx + 8*esi+112-16], mm5 |
| 591 |
|
movq [edx + 8*esi +120-16], mm7 |
| 592 |
|
jng near .lloop |
| 593 |
|
jmp near .done |
| 594 |
|
|
| 595 |
|
|
| 596 |
|
;=========================================================================== |
| 597 |
|
; |
| 598 |
|
; void dequant4_intra_mmx(int16_t *data, |
| 599 |
|
; const int16_t const *coeff, |
| 600 |
|
; const uint32_t quant, |
| 601 |
|
; const uint32_t dcscalar); |
| 602 |
|
; |
| 603 |
|
;=========================================================================== |
| 604 |
|
|
| 605 |
|
; Note: in order to saturate 'easily', we pre-shift the quantifier |
| 606 |
|
; by 4. Then, the high-word of (coeff[]*matrix[i]*quant) are used to |
| 607 |
|
; build a saturating mask. It is non-zero only when an overflow occured. |
| 608 |
|
; We thus avoid packing/unpacking toward double-word. |
| 609 |
|
; Moreover, we perform the mult (matrix[i]*quant) first, instead of, e.g., |
| 610 |
|
; (coeff[i]*matrix[i]). This is less prone to overflow if coeff[] are not |
| 611 |
|
; checked. Input ranges are: coeff in [-127,127], inter_matrix in [1..255],a |
| 612 |
|
; and quant in [1..31]. |
| 613 |
|
; |
| 614 |
|
;******************************************************************** |
| 615 |
|
%macro DEQUANT4INTRAMMX 1 |
| 616 |
|
movq mm1, [byte ecx+ 16 * %1] ; mm0 = c = coeff[i] |
| 617 |
|
movq mm4, [ecx+ 16 * %1 +8]; mm3 = c' = coeff[i+1] |
| 618 |
|
psubw mm0,mm1 |
| 619 |
|
psubw mm3,mm4 |
| 620 |
|
pmaxsw mm0,mm1 |
| 621 |
|
pmaxsw mm3,mm4 |
| 622 |
|
psraw mm1,15 |
| 623 |
|
psraw mm4,15 |
| 624 |
|
%if %1 |
| 625 |
|
movq mm2,[eax+8] ;preshifted quant |
| 626 |
|
movq mm7,[eax+8] |
| 627 |
|
%endif |
| 628 |
|
pmullw mm2, [intra_matrix + 16 * %1 ] ; matrix[i]*quant |
| 629 |
|
pmullw mm7, [intra_matrix + 16 * %1 +8] ; matrix[i+1]*quant |
| 630 |
|
movq mm5,mm0 |
| 631 |
|
movq mm6,mm3 |
| 632 |
|
pmulhw mm0, mm2 ; high of coeff*(matrix*quant) |
| 633 |
|
pmulhw mm3, mm7 ; high of coeff*(matrix*quant) |
| 634 |
|
pmullw mm2, mm5 ; low of coeff*(matrix*quant) |
| 635 |
|
pmullw mm7, mm6 ; low of coeff*(matrix*quant) |
| 636 |
|
pcmpgtw mm0, [eax] |
| 637 |
|
pcmpgtw mm3, [eax] |
| 638 |
|
paddusw mm2, mm0 |
| 639 |
|
paddusw mm7, mm3 |
| 640 |
|
psrlw mm2, 5 |
| 641 |
|
psrlw mm7, 5 |
| 642 |
|
pxor mm2, mm1 ; start negating back |
| 643 |
|
pxor mm7, mm4 ; start negating back |
| 644 |
|
psubusw mm1, mm0 |
| 645 |
|
psubusw mm4, mm3 |
| 646 |
|
movq mm0,[eax] ;zero |
| 647 |
|
movq mm3,[eax] ;zero |
| 648 |
|
psubw mm2, mm1 ; finish negating back |
| 649 |
|
psubw mm7, mm4 ; finish negating back |
| 650 |
|
movq [byte edx + 16 * %1], mm2 ; data[i] |
| 651 |
|
movq [edx + 16 * %1 +8], mm7 ; data[i+1] |
| 652 |
|
%endmacro |
| 653 |
|
|
| 654 |
|
align 16 |
| 655 |
|
cglobal dequant_mpeg_intra_3dne |
| 656 |
|
dequant_mpeg_intra_3dne: |
| 657 |
|
mov eax, [esp+12] ; quant |
| 658 |
|
mov ecx, [esp+8] ; coeff |
| 659 |
|
movq mm7, [mmx_mul_quant + eax*8 - 8] |
| 660 |
|
psllw mm7, 2 ; << 2. See comment. |
| 661 |
|
mov edx, [esp+4] ; data |
| 662 |
|
push ebx |
| 663 |
|
movsx ebx,word [ecx] |
| 664 |
|
pxor mm0, mm0 |
| 665 |
|
pxor mm3, mm3 |
| 666 |
|
push esi |
| 667 |
|
lea eax,[esp-28] |
| 668 |
|
sub esp,byte 32 |
| 669 |
|
and eax,byte -8 ;points to qword aligned space on stack |
| 670 |
|
movq [eax],mm0 |
| 671 |
|
movq [eax+8],mm7 |
| 672 |
|
imul ebx,[esp+16+8+32] ; dcscalar |
| 673 |
|
movq mm2,mm7 |
| 674 |
|
|
| 675 |
|
|
| 676 |
|
align 4 |
| 677 |
|
|
| 678 |
|
DEQUANT4INTRAMMX 0 |
| 679 |
|
|
| 680 |
|
mov esi,-2048 |
| 681 |
|
nop |
| 682 |
|
cmp ebx,esi |
| 683 |
|
|
| 684 |
|
DEQUANT4INTRAMMX 1 |
| 685 |
|
|
| 686 |
|
cmovl ebx, esi |
| 687 |
|
neg esi |
| 688 |
|
sub esi, byte 1 ;2047 |
| 689 |
|
|
| 690 |
|
DEQUANT4INTRAMMX 2 |
| 691 |
|
|
| 692 |
|
cmp ebx, esi |
| 693 |
|
cmovg ebx, esi |
| 694 |
|
lea ebp, [byte ebp] |
| 695 |
|
|
| 696 |
|
DEQUANT4INTRAMMX 3 |
| 697 |
|
|
| 698 |
|
mov esi, [esp+32] |
| 699 |
|
mov [byte edx], bx |
| 700 |
|
mov ebx, [esp+32+4] |
| 701 |
|
|
| 702 |
|
DEQUANT4INTRAMMX 4 |
| 703 |
|
DEQUANT4INTRAMMX 5 |
| 704 |
|
DEQUANT4INTRAMMX 6 |
| 705 |
|
DEQUANT4INTRAMMX 7 |
| 706 |
|
|
| 707 |
|
add esp, byte 32+8 |
| 708 |
|
|
| 709 |
|
ret |
| 710 |
|
|
| 711 |
|
;=========================================================================== |
| 712 |
|
; |
| 713 |
|
; void dequant4_inter_3dne(int16_t * data, |
| 714 |
|
; const int16_t * const coeff, |
| 715 |
|
; const uint32_t quant); |
| 716 |
|
; |
| 717 |
|
;=========================================================================== |
| 718 |
|
|
| 719 |
|
; Note: We use (2*c + sgn(c) - sgn(-c)) as multiplier |
| 720 |
|
; so we handle the 3 cases: c<0, c==0, and c>0 in one shot. |
| 721 |
|
; sgn(x) is the result of 'pcmpgtw 0,x': 0 if x>=0, -1 if x<0. |
| 722 |
|
; It's mixed with the extraction of the absolute value. |
| 723 |
|
|
| 724 |
|
align 16 |
| 725 |
|
cglobal dequant_mpeg_inter_3dne |
| 726 |
|
dequant_mpeg_inter_3dne: |
| 727 |
|
mov edx, [esp+ 4] ; data |
| 728 |
|
mov ecx, [esp+ 8] ; coeff |
| 729 |
|
mov eax, [esp+12] ; quant |
| 730 |
|
movq mm7, [mmx_mul_quant + eax*8 - 8] |
| 731 |
|
mov eax, -14 |
| 732 |
|
paddw mm7, mm7 ; << 1 |
| 733 |
|
pxor mm6, mm6 ; mismatch sum |
| 734 |
|
push esi |
| 735 |
|
mov esi,mmzero |
| 736 |
|
pxor mm1,mm1 |
| 737 |
|
pxor mm3,mm3 |
| 738 |
|
nop |
| 739 |
|
nop4 |
| 740 |
|
|
| 741 |
|
align 16 |
| 742 |
|
.loop |
| 743 |
|
movq mm0, [ecx+8*eax + 7*16 ] ; mm0 = coeff[i] |
| 744 |
|
pcmpgtw mm1, mm0 ; mm1 = sgn(c) (preserved) |
| 745 |
|
movq mm2, [ecx+8*eax + 7*16 +8] ; mm2 = coeff[i+1] |
| 746 |
|
pcmpgtw mm3, mm2 ; mm3 = sgn(c') (preserved) |
| 747 |
|
paddsw mm0, mm1 ; c += sgn(c) |
| 748 |
|
paddsw mm2, mm3 ; c += sgn(c') |
| 749 |
|
paddw mm0, mm0 ; c *= 2 |
| 750 |
|
paddw mm2, mm2 ; c'*= 2 |
| 751 |
|
|
| 752 |
|
movq mm4, [esi] |
| 753 |
|
movq mm5, [esi] |
| 754 |
|
psubw mm4, mm0 ; -c |
| 755 |
|
psubw mm5, mm2 ; -c' |
| 756 |
|
|
| 757 |
|
psraw mm4, 16 ; mm4 = sgn(-c) |
| 758 |
|
psraw mm5, 16 ; mm5 = sgn(-c') |
| 759 |
|
psubsw mm0, mm4 ; c -= sgn(-c) |
| 760 |
|
psubsw mm2, mm5 ; c' -= sgn(-c') |
| 761 |
|
pxor mm0, mm1 ; finish changing sign if needed |
| 762 |
|
pxor mm2, mm3 ; finish changing sign if needed |
| 763 |
|
|
| 764 |
|
; we're short on register, here. Poor pairing... |
| 765 |
|
|
| 766 |
|
movq mm4, mm7 ; (matrix*quant) |
| 767 |
|
nop |
| 768 |
|
pmullw mm4, [inter_matrix + 8*eax + 7*16] |
| 769 |
|
movq mm5, mm4 |
| 770 |
|
pmulhw mm5, mm0 ; high of c*(matrix*quant) |
| 771 |
|
pmullw mm0, mm4 ; low of c*(matrix*quant) |
| 772 |
|
|
| 773 |
|
movq mm4, mm7 ; (matrix*quant) |
| 774 |
|
pmullw mm4, [inter_matrix + 8*eax + 7*16 + 8] |
| 775 |
|
add eax,byte 2 |
| 776 |
|
|
| 777 |
|
pcmpgtw mm5, [esi] |
| 778 |
|
paddusw mm0, mm5 |
| 779 |
|
psrlw mm0, 5 |
| 780 |
|
pxor mm0, mm1 ; start restoring sign |
| 781 |
|
psubusw mm1, mm5 |
| 782 |
|
|
| 783 |
|
movq mm5, mm4 |
| 784 |
|
pmulhw mm5, mm2 ; high of c*(matrix*quant) |
| 785 |
|
pmullw mm2, mm4 ; low of c*(matrix*quant) |
| 786 |
|
psubw mm0, mm1 ; finish restoring sign |
| 787 |
|
|
| 788 |
|
pcmpgtw mm5, [esi] |
| 789 |
|
paddusw mm2, mm5 |
| 790 |
|
psrlw mm2, 5 |
| 791 |
|
pxor mm2, mm3 ; start restoring sign |
| 792 |
|
psubusw mm3, mm5 |
| 793 |
|
psubw mm2, mm3 ; finish restoring sign |
| 794 |
|
movq mm1, [esi] |
| 795 |
|
movq mm3, [byte esi] |
| 796 |
|
pxor mm6, mm0 ; mismatch control |
| 797 |
|
movq [edx + 8*eax + 7*16 -2*8 ], mm0 ; data[i] |
| 798 |
|
pxor mm6, mm2 ; mismatch control |
| 799 |
|
movq [edx + 8*eax + 7*16 -2*8 +8], mm2 ; data[i+1] |
| 800 |
|
|
| 801 |
|
jng .loop |
| 802 |
|
nop |
| 803 |
|
|
| 804 |
|
; mismatch control |
| 805 |
|
|
| 806 |
|
pshufw mm0,mm6,01010101b |
| 807 |
|
pshufw mm1,mm6,10101010b |
| 808 |
|
pshufw mm2,mm6,11111111b |
| 809 |
|
pxor mm6, mm0 |
| 810 |
|
pxor mm1, mm2 |
| 811 |
|
pxor mm6, mm1 |
| 812 |
|
movd eax, mm6 |
| 813 |
|
and eax,byte 1 |
| 814 |
|
xor eax,byte 1 |
| 815 |
|
mov esi,[esp] |
| 816 |
|
add esp,byte 4 |
| 817 |
|
xor word [edx + 2*63], ax |
| 818 |
|
|
| 819 |
|
ret |
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