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53 lines
1.6 KiB
53 lines
1.6 KiB
/* |
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* MMX-optimized avg/put pixel routines |
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* |
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* Copyright (c) 2001 Fabrice Bellard |
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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 <stddef.h> |
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#include <stdint.h> |
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#include "config.h" |
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#include "hpeldsp.h" |
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#include "inline_asm.h" |
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#if HAVE_MMX_INLINE |
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void ff_avg_pixels8_x2_mmx(uint8_t *block, const uint8_t *pixels, |
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ptrdiff_t line_size, int h) |
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{ |
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MOVQ_BFE(mm6); |
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JUMPALIGN(); |
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do { |
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__asm__ volatile( |
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"movq %1, %%mm0 \n\t" |
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"movq 1%1, %%mm1 \n\t" |
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"movq %0, %%mm3 \n\t" |
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PAVGB_MMX(%%mm0, %%mm1, %%mm2, %%mm6) |
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PAVGB_MMX(%%mm3, %%mm2, %%mm0, %%mm6) |
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"movq %%mm0, %0 \n\t" |
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:"+m"(*block) |
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:"m"(*pixels) |
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:"memory"); |
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pixels += line_size; |
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block += line_size; |
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} while (--h); |
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} |
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#endif /* HAVE_MMX_INLINE */
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