diff options
Diffstat (limited to 'ffmpeg/libavcodec/x86/rv34dsp.asm')
| -rw-r--r-- | ffmpeg/libavcodec/x86/rv34dsp.asm | 196 |
1 files changed, 196 insertions, 0 deletions
diff --git a/ffmpeg/libavcodec/x86/rv34dsp.asm b/ffmpeg/libavcodec/x86/rv34dsp.asm new file mode 100644 index 0000000..4d9c35b --- /dev/null +++ b/ffmpeg/libavcodec/x86/rv34dsp.asm @@ -0,0 +1,196 @@ +;****************************************************************************** +;* MMX/SSE2-optimized functions for the RV30 and RV40 decoders +;* Copyright (C) 2012 Christophe Gisquet <christophe.gisquet@gmail.com> +;* +;* This file is part of Libav. +;* +;* Libav is free software; you can redistribute it and/or +;* modify it under the terms of the GNU Lesser General Public +;* License as published by the Free Software Foundation; either +;* version 2.1 of the License, or (at your option) any later version. +;* +;* Libav is distributed in the hope that it will be useful, +;* but WITHOUT ANY WARRANTY; without even the implied warranty of +;* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +;* Lesser General Public License for more details. +;* +;* You should have received a copy of the GNU Lesser General Public +;* License along with Libav; if not, write to the Free Software +;* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA +;****************************************************************************** + +%include "libavutil/x86/x86util.asm" + +SECTION_RODATA +pw_row_coeffs: times 4 dw 13 + times 4 dw 17 + times 4 dw 7 +pd_512: times 2 dd 0x200 +pw_col_coeffs: dw 13, 13, 13, -13 + dw 17, 7, 7, -17 + dw 13, -13, 13, 13 + dw -7, 17, -17, -7 + +SECTION .text + +%macro IDCT_DC_NOROUND 1 + imul %1, 13*13*3 + sar %1, 11 +%endmacro + +%macro IDCT_DC_ROUND 1 + imul %1, 13*13 + add %1, 0x200 + sar %1, 10 +%endmacro + +%macro rv34_idct 1 +cglobal rv34_idct_%1, 1, 2, 0 + movsx r1, word [r0] + IDCT_DC r1 + movd m0, r1d + pshufw m0, m0, 0 + movq [r0+ 0], m0 + movq [r0+ 8], m0 + movq [r0+16], m0 + movq [r0+24], m0 + REP_RET +%endmacro + +INIT_MMX mmxext +%define IDCT_DC IDCT_DC_ROUND +rv34_idct dc +%define IDCT_DC IDCT_DC_NOROUND +rv34_idct dc_noround + +; ff_rv34_idct_dc_add_mmx(uint8_t *dst, int stride, int dc); +INIT_MMX mmx +cglobal rv34_idct_dc_add, 3, 3 + ; calculate DC + IDCT_DC_ROUND r2 + pxor m1, m1 + movd m0, r2d + psubw m1, m0 + packuswb m0, m0 + packuswb m1, m1 + punpcklbw m0, m0 + punpcklbw m1, m1 + punpcklwd m0, m0 + punpcklwd m1, m1 + + ; add DC + lea r2, [r0+r1*2] + movh m2, [r0] + movh m3, [r0+r1] + movh m4, [r2] + movh m5, [r2+r1] + paddusb m2, m0 + paddusb m3, m0 + paddusb m4, m0 + paddusb m5, m0 + psubusb m2, m1 + psubusb m3, m1 + psubusb m4, m1 + psubusb m5, m1 + movh [r0], m2 + movh [r0+r1], m3 + movh [r2], m4 + movh [r2+r1], m5 + RET + +; Load coeffs and perform row transform +; Output: coeffs in mm[0467], rounder in mm5 +%macro ROW_TRANSFORM 1 + pxor mm7, mm7 + mova mm0, [%1+ 0*8] + mova mm1, [%1+ 1*8] + mova mm2, [%1+ 2*8] + mova mm3, [%1+ 3*8] + mova [%1+ 0*8], mm7 + mova [%1+ 1*8], mm7 + mova [%1+ 2*8], mm7 + mova [%1+ 3*8], mm7 + mova mm4, mm0 + mova mm6, [pw_row_coeffs+ 0] + paddsw mm0, mm2 ; b0 + b2 + psubsw mm4, mm2 ; b0 - b2 + pmullw mm0, mm6 ; *13 = z0 + pmullw mm4, mm6 ; *13 = z1 + mova mm5, mm1 + pmullw mm1, [pw_row_coeffs+ 8] ; b1*17 + pmullw mm5, [pw_row_coeffs+16] ; b1* 7 + mova mm7, mm3 + pmullw mm3, [pw_row_coeffs+ 8] ; b3*17 + pmullw mm7, [pw_row_coeffs+16] ; b3* 7 + paddsw mm1, mm7 ; z3 = b1*17 + b3* 7 + psubsw mm5, mm3 ; z2 = b1* 7 - b3*17 + mova mm7, mm0 + mova mm6, mm4 + paddsw mm0, mm1 ; z0 + z3 + psubsw mm7, mm1 ; z0 - z3 + paddsw mm4, mm5 ; z1 + z2 + psubsw mm6, mm5 ; z1 - z2 + mova mm5, [pd_512] ; 0x200 +%endmacro + +; ff_rv34_idct_add_mmxext(uint8_t *dst, ptrdiff_t stride, int16_t *block); +%macro COL_TRANSFORM 4 + pshufw mm3, %2, 0xDD ; col. 1,3,1,3 + pshufw %2, %2, 0x88 ; col. 0,2,0,2 + pmaddwd %2, %3 ; 13*c0+13*c2 | 13*c0-13*c2 = z0 | z1 + pmaddwd mm3, %4 ; 17*c1+ 7*c3 | 7*c1-17*c3 = z3 | z2 + paddd %2, mm5 + pshufw mm1, %2, 01001110b ; z1 | z0 + pshufw mm2, mm3, 01001110b ; z2 | z3 + paddd %2, mm3 ; z0+z3 | z1+z2 + psubd mm1, mm2 ; z1-z2 | z0-z3 + movd mm3, %1 + psrad %2, 10 + pxor mm2, mm2 + psrad mm1, 10 + punpcklbw mm3, mm2 + packssdw %2, mm1 + paddw %2, mm3 + packuswb %2, %2 + movd %1, %2 +%endmacro +INIT_MMX mmxext +cglobal rv34_idct_add, 3,3,0, d, s, b + ROW_TRANSFORM bq + COL_TRANSFORM [dq], mm0, [pw_col_coeffs+ 0], [pw_col_coeffs+ 8] + mova mm0, [pw_col_coeffs+ 0] + COL_TRANSFORM [dq+sq], mm4, mm0, [pw_col_coeffs+ 8] + mova mm4, [pw_col_coeffs+ 8] + lea dq, [dq + 2*sq] + COL_TRANSFORM [dq], mm6, mm0, mm4 + COL_TRANSFORM [dq+sq], mm7, mm0, mm4 + ret + +; ff_rv34_idct_dc_add_sse4(uint8_t *dst, int stride, int dc); +INIT_XMM sse4 +cglobal rv34_idct_dc_add, 3, 3, 6 + ; load data + IDCT_DC_ROUND r2 + pxor m1, m1 + + ; calculate DC + movd m0, r2d + lea r2, [r0+r1*2] + movd m2, [r0] + movd m3, [r0+r1] + pshuflw m0, m0, 0 + movd m4, [r2] + movd m5, [r2+r1] + punpcklqdq m0, m0 + punpckldq m2, m3 + punpckldq m4, m5 + punpcklbw m2, m1 + punpcklbw m4, m1 + paddw m2, m0 + paddw m4, m0 + packuswb m2, m4 + movd [r0], m2 + pextrd [r0+r1], m2, 1 + pextrd [r2], m2, 2 + pextrd [r2+r1], m2, 3 + RET |