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112 lines
3.8 KiB
112 lines
3.8 KiB
;****************************************************************************** |
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;* SIMD-optimized IDCT-related routines |
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;* Copyright (c) 2008 Loren Merritt |
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;* Copyright (c) 2003-2013 Michael Niedermayer |
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;* Copyright (c) 2013 Daniel Kang |
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;* |
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;* This file is part of FFmpeg. |
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;* |
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;* FFmpeg is free software; you can redistribute it and/or |
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;* modify it under the terms of the GNU Lesser General Public |
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;* License as published by the Free Software Foundation; either |
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;* version 2.1 of the License, or (at your option) any later version. |
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;* |
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;* FFmpeg 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 GNU |
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;* Lesser General Public License for more details. |
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;* |
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;* You should have received a copy of the GNU Lesser General Public |
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;* License along with FFmpeg; if not, write to the Free Software |
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;* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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;****************************************************************************** |
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%include "libavutil/x86/x86util.asm" |
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SECTION_RODATA |
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cextern pb_80 |
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SECTION .text |
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;-------------------------------------------------------------------------- |
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;void ff_put_signed_pixels_clamped(const int16_t *block, uint8_t *pixels, |
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; ptrdiff_t line_size) |
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;-------------------------------------------------------------------------- |
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%macro PUT_SIGNED_PIXELS_CLAMPED_HALF 1 |
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mova m1, [blockq+mmsize*0+%1] |
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mova m2, [blockq+mmsize*2+%1] |
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packsswb m1, [blockq+mmsize*1+%1] |
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packsswb m2, [blockq+mmsize*3+%1] |
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paddb m1, m0 |
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paddb m2, m0 |
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movq [pixelsq+lsizeq*0], m1 |
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movhps [pixelsq+lsizeq*1], m1 |
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movq [pixelsq+lsizeq*2], m2 |
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movhps [pixelsq+lsize3q ], m2 |
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%endmacro |
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INIT_XMM sse2 |
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cglobal put_signed_pixels_clamped, 3, 4, 3, block, pixels, lsize, lsize3 |
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mova m0, [pb_80] |
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lea lsize3q, [lsizeq*3] |
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PUT_SIGNED_PIXELS_CLAMPED_HALF 0 |
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lea pixelsq, [pixelsq+lsizeq*4] |
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PUT_SIGNED_PIXELS_CLAMPED_HALF 64 |
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RET |
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;-------------------------------------------------------------------------- |
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; void ff_put_pixels_clamped(const int16_t *block, uint8_t *pixels, |
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; ptrdiff_t line_size); |
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;-------------------------------------------------------------------------- |
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; %1 = block offset |
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%macro PUT_PIXELS_CLAMPED_HALF 1 |
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mova m0, [blockq+mmsize*0+%1] |
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mova m1, [blockq+mmsize*2+%1] |
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packuswb m0, [blockq+mmsize*1+%1] |
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packuswb m1, [blockq+mmsize*3+%1] |
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movq [pixelsq], m0 |
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movhps [lsizeq+pixelsq], m0 |
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movq [2*lsizeq+pixelsq], m1 |
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movhps [lsize3q+pixelsq], m1 |
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%endmacro |
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INIT_XMM sse2 |
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cglobal put_pixels_clamped, 3, 4, 2, block, pixels, lsize, lsize3 |
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lea lsize3q, [lsizeq*3] |
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PUT_PIXELS_CLAMPED_HALF 0 |
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lea pixelsq, [pixelsq+lsizeq*4] |
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PUT_PIXELS_CLAMPED_HALF 64 |
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RET |
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;-------------------------------------------------------------------------- |
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; void ff_add_pixels_clamped(const int16_t *block, uint8_t *pixels, |
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; ptrdiff_t line_size); |
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;-------------------------------------------------------------------------- |
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; %1 = block offset |
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%macro ADD_PIXELS_CLAMPED 1 |
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mova m0, [blockq+mmsize*0+%1] |
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mova m1, [blockq+mmsize*1+%1] |
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movq m2, [pixelsq] |
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movq m3, [pixelsq+lsizeq] |
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punpcklbw m2, m4 |
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punpcklbw m3, m4 |
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paddsw m0, m2 |
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paddsw m1, m3 |
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packuswb m0, m1 |
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movq [pixelsq], m0 |
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movhps [pixelsq+lsizeq], m0 |
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%endmacro |
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INIT_XMM sse2 |
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cglobal add_pixels_clamped, 3, 3, 5, block, pixels, lsize |
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pxor m4, m4 |
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ADD_PIXELS_CLAMPED 0 |
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lea pixelsq, [pixelsq+lsizeq*2] |
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ADD_PIXELS_CLAMPED 32 |
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lea pixelsq, [pixelsq+lsizeq*2] |
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ADD_PIXELS_CLAMPED 64 |
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lea pixelsq, [pixelsq+lsizeq*2] |
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ADD_PIXELS_CLAMPED 96 |
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RET
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