2014-06-23 20:01:03 +00:00
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;******************************************************************************
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2014-07-01 21:10:15 +00:00
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;* SIMD-optimized IDCT-related routines
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2014-06-23 20:01:03 +00:00
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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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2014-09-24 22:51:02 +00:00
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; ptrdiff_t line_size)
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2014-06-23 20:01:03 +00:00
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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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%if mmsize == 8
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mova m3, [blockq+mmsize*4+%1]
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mova m4, [blockq+mmsize*6+%1]
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%endif
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packsswb m1, [blockq+mmsize*1+%1]
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packsswb m2, [blockq+mmsize*3+%1]
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%if mmsize == 8
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packsswb m3, [blockq+mmsize*5+%1]
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packsswb m4, [blockq+mmsize*7+%1]
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%endif
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paddb m1, m0
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paddb m2, m0
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%if mmsize == 8
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paddb m3, m0
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paddb m4, m0
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movq [pixelsq+lsizeq*0], m1
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movq [pixelsq+lsizeq*1], m2
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movq [pixelsq+lsizeq*2], m3
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movq [pixelsq+lsize3q ], m4
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%else
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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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%endif
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%endmacro
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%macro PUT_SIGNED_PIXELS_CLAMPED 1
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cglobal put_signed_pixels_clamped, 3, 4, %1, 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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%endmacro
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INIT_MMX mmx
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PUT_SIGNED_PIXELS_CLAMPED 0
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INIT_XMM sse2
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PUT_SIGNED_PIXELS_CLAMPED 3
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