297 lines
8.2 KiB
C
297 lines
8.2 KiB
C
/*
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* DSP utils : average functions are compiled twice for 3dnow/mmx2
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* Copyright (c) 2000, 2001 Fabrice Bellard.
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* Copyright (c) 2002 Michael Niedermayer
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*
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* This library 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 of the License, or (at your option) any later version.
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*
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* This library 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 this library; 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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* MMX optimization by Nick Kurshev <nickols_k@mail.ru>
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* mostly rewritten by Michael Niedermayer <michaelni@gmx.at>
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* and improved by Zdenek Kabelac <kabi@users.sf.net>
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*/
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/* XXX: we use explicit registers to avoid a gcc 2.95.2 register asm
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clobber bug - now it will work with 2.95.2 and also with -fPIC
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*/
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static void DEF(put_pixels_x2)(UINT8 *block, const UINT8 *pixels, int line_size, int h)
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{
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__asm __volatile(
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"lea (%3, %3), %%eax \n\t"
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"1: \n\t"
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"movq (%1), %%mm0 \n\t"
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"movq (%1, %3), %%mm1 \n\t"
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PAVGB" 1(%1), %%mm0 \n\t"
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PAVGB" 1(%1, %3), %%mm1 \n\t"
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"movq %%mm0, (%2) \n\t"
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"movq %%mm1, (%2, %3) \n\t"
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"addl %%eax, %1 \n\t"
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"addl %%eax, %2 \n\t"
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"movq (%1), %%mm0 \n\t"
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"movq (%1, %3), %%mm1 \n\t"
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PAVGB" 1(%1), %%mm0 \n\t"
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PAVGB" 1(%1, %3), %%mm1 \n\t"
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"addl %%eax, %1 \n\t"
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"movq %%mm0, (%2) \n\t"
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"movq %%mm1, (%2, %3) \n\t"
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"addl %%eax, %2 \n\t"
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"subl $4, %0 \n\t"
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"jnz 1b \n\t"
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:"+g"(h), "+S"(pixels), "+D"(block)
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:"r" (line_size)
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:"%eax", "memory");
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}
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/* GL: this function does incorrect rounding if overflow */
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static void DEF(put_no_rnd_pixels_x2)(UINT8 *block, const UINT8 *pixels, int line_size, int h)
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{
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__asm __volatile(
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"lea (%3, %3), %%eax \n\t"
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MOVQ_BONE(%%mm7)
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"1: \n\t"
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"movq (%1), %%mm0 \n\t"
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"movq (%1, %3), %%mm2 \n\t"
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"movq 1(%1), %%mm1 \n\t"
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"movq 1(%1, %3), %%mm3 \n\t"
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"addl %%eax, %1 \n\t"
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"psubusb %%mm7, %%mm0 \n\t"
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"psubusb %%mm7, %%mm2 \n\t"
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PAVGB" %%mm1, %%mm0 \n\t"
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PAVGB" %%mm3, %%mm2 \n\t"
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"movq %%mm0, (%2) \n\t"
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"movq %%mm2, (%2, %3) \n\t"
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"movq (%1), %%mm0 \n\t"
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"movq 1(%1), %%mm1 \n\t"
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"movq (%1, %3), %%mm2 \n\t"
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"movq 1(%1, %3), %%mm3 \n\t"
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"addl %%eax, %2 \n\t"
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"addl %%eax, %1 \n\t"
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"psubusb %%mm7, %%mm0 \n\t"
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"psubusb %%mm7, %%mm2 \n\t"
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PAVGB" %%mm1, %%mm0 \n\t"
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PAVGB" %%mm3, %%mm2 \n\t"
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"movq %%mm0, (%2) \n\t"
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"movq %%mm2, (%2, %3) \n\t"
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"addl %%eax, %2 \n\t"
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"subl $4, %0 \n\t"
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"jnz 1b \n\t"
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:"+g"(h), "+S"(pixels), "+D"(block)
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:"r" (line_size)
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:"%eax", "memory");
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}
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static void DEF(put_pixels_y2)(UINT8 *block, const UINT8 *pixels, int line_size, int h)
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{
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__asm __volatile(
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"lea (%3, %3), %%eax \n\t"
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"movq (%1), %%mm0 \n\t"
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"subl %3, %2 \n\t"
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"1: \n\t"
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"movq (%1, %3), %%mm1 \n\t"
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"movq (%1, %%eax), %%mm2 \n\t"
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"addl %%eax, %1 \n\t"
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PAVGB" %%mm1, %%mm0 \n\t"
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PAVGB" %%mm2, %%mm1 \n\t"
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"movq %%mm0, (%2, %3) \n\t"
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"movq %%mm1, (%2, %%eax) \n\t"
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"movq (%1, %3), %%mm1 \n\t"
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"movq (%1, %%eax), %%mm0 \n\t"
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"addl %%eax, %2 \n\t"
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"addl %%eax, %1 \n\t"
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PAVGB" %%mm1, %%mm2 \n\t"
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PAVGB" %%mm0, %%mm1 \n\t"
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"movq %%mm2, (%2, %3) \n\t"
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"movq %%mm1, (%2, %%eax) \n\t"
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"addl %%eax, %2 \n\t"
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"subl $4, %0 \n\t"
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"jnz 1b \n\t"
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:"+g"(h), "+S"(pixels), "+D" (block)
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:"r" (line_size)
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:"%eax", "memory");
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}
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/* GL: this function does incorrect rounding if overflow */
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static void DEF(put_no_rnd_pixels_y2)(UINT8 *block, const UINT8 *pixels, int line_size, int h)
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{
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__asm __volatile(
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MOVQ_BONE(%%mm7)
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"lea (%3, %3), %%eax \n\t"
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"movq (%1), %%mm0 \n\t"
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"subl %3, %2 \n\t"
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"1: \n\t"
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"movq (%1, %3), %%mm1 \n\t"
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"movq (%1, %%eax), %%mm2 \n\t"
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"addl %%eax, %1 \n\t"
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"psubusb %%mm7, %%mm1 \n\t"
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PAVGB" %%mm1, %%mm0 \n\t"
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PAVGB" %%mm2, %%mm1 \n\t"
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"movq %%mm0, (%2, %3) \n\t"
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"movq %%mm1, (%2, %%eax) \n\t"
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"movq (%1, %3), %%mm1 \n\t"
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"movq (%1, %%eax), %%mm0 \n\t"
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"addl %%eax, %2 \n\t"
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"addl %%eax, %1 \n\t"
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"psubusb %%mm7, %%mm1 \n\t"
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PAVGB" %%mm1, %%mm2 \n\t"
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PAVGB" %%mm0, %%mm1 \n\t"
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"movq %%mm2, (%2, %3) \n\t"
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"movq %%mm1, (%2, %%eax) \n\t"
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"addl %%eax, %2 \n\t"
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"subl $4, %0 \n\t"
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"jnz 1b \n\t"
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:"+g"(h), "+S"(pixels), "+D" (block)
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:"r" (line_size)
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:"%eax", "memory");
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}
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static void DEF(avg_pixels)(UINT8 *block, const UINT8 *pixels, int line_size, int h)
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{
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__asm __volatile(
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"lea (%3, %3), %%eax \n\t"
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"1: \n\t"
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"movq (%2), %%mm0 \n\t"
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"movq (%2, %3), %%mm1 \n\t"
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PAVGB" (%1), %%mm0 \n\t"
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PAVGB" (%1, %3), %%mm1 \n\t"
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"movq %%mm0, (%2) \n\t"
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"movq %%mm1, (%2, %3) \n\t"
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"addl %%eax, %1 \n\t"
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"addl %%eax, %2 \n\t"
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"movq (%2), %%mm0 \n\t"
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"movq (%2, %3), %%mm1 \n\t"
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PAVGB" (%1), %%mm0 \n\t"
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PAVGB" (%1, %3), %%mm1 \n\t"
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"addl %%eax, %1 \n\t"
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"movq %%mm0, (%2) \n\t"
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"movq %%mm1, (%2, %3) \n\t"
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"addl %%eax, %2 \n\t"
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"subl $4, %0 \n\t"
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"jnz 1b \n\t"
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:"+g"(h), "+S"(pixels), "+D"(block)
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:"r" (line_size)
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:"%eax", "memory");
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}
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static void DEF(avg_pixels_x2)(UINT8 *block, const UINT8 *pixels, int line_size, int h)
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{
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__asm __volatile(
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"lea (%3, %3), %%eax \n\t"
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"1: \n\t"
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"movq (%1), %%mm0 \n\t"
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"movq (%1, %3), %%mm2 \n\t"
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PAVGB" 1(%1), %%mm0 \n\t"
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PAVGB" 1(%1, %3), %%mm2 \n\t"
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PAVGB" (%2), %%mm0 \n\t"
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PAVGB" (%2, %3), %%mm2 \n\t"
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"addl %%eax, %1 \n\t"
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"movq %%mm0, (%2) \n\t"
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"movq %%mm2, (%2, %3) \n\t"
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"movq (%1), %%mm0 \n\t"
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"movq (%1, %3), %%mm2 \n\t"
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PAVGB" 1(%1), %%mm0 \n\t"
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PAVGB" 1(%1, %3), %%mm2 \n\t"
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"addl %%eax, %2 \n\t"
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"addl %%eax, %1 \n\t"
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PAVGB" (%2), %%mm0 \n\t"
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PAVGB" (%2, %3), %%mm2 \n\t"
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"movq %%mm0, (%2) \n\t"
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"movq %%mm2, (%2, %3) \n\t"
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"addl %%eax, %2 \n\t"
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"subl $4, %0 \n\t"
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"jnz 1b \n\t"
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:"+g"(h), "+S"(pixels), "+D"(block)
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:"r" (line_size)
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:"%eax", "memory");
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}
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static void DEF(avg_pixels_y2)(UINT8 *block, const UINT8 *pixels, int line_size, int h)
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{
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__asm __volatile(
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"lea (%3, %3), %%eax \n\t"
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"movq (%1), %%mm0 \n\t"
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"subl %3, %2 \n\t"
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"1: \n\t"
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"movq (%1, %3), %%mm1 \n\t"
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"movq (%1, %%eax), %%mm2 \n\t"
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"addl %%eax, %1 \n\t"
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PAVGB" %%mm1, %%mm0 \n\t"
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PAVGB" %%mm2, %%mm1 \n\t"
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"movq (%2, %3), %%mm3 \n\t"
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"movq (%2, %%eax), %%mm4 \n\t"
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PAVGB" %%mm3, %%mm0 \n\t"
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PAVGB" %%mm4, %%mm1 \n\t"
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"movq %%mm0, (%2, %3) \n\t"
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"movq %%mm1, (%2, %%eax) \n\t"
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"movq (%1, %3), %%mm1 \n\t"
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"movq (%1, %%eax), %%mm0 \n\t"
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PAVGB" %%mm1, %%mm2 \n\t"
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PAVGB" %%mm0, %%mm1 \n\t"
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"addl %%eax, %2 \n\t"
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"addl %%eax, %1 \n\t"
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"movq (%2, %3), %%mm3 \n\t"
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"movq (%2, %%eax), %%mm4 \n\t"
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PAVGB" %%mm3, %%mm2 \n\t"
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PAVGB" %%mm4, %%mm1 \n\t"
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"movq %%mm2, (%2, %3) \n\t"
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"movq %%mm1, (%2, %%eax) \n\t"
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"addl %%eax, %2 \n\t"
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"subl $4, %0 \n\t"
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"jnz 1b \n\t"
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:"+g"(h), "+S"(pixels), "+D"(block)
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:"r" (line_size)
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:"%eax", "memory");
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}
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// Note this is not correctly rounded, but this function is only used for b frames so it doesnt matter
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static void DEF(avg_pixels_xy2)(UINT8 *block, const UINT8 *pixels, int line_size, int h)
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{
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__asm __volatile(
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MOVQ_BONE(%%mm7)
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"lea (%3, %3), %%eax \n\t"
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"movq (%1), %%mm0 \n\t"
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PAVGB" 1(%1), %%mm0 \n\t"
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".balign 8 \n\t"
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"1: \n\t"
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"movq (%1, %%eax), %%mm2 \n\t"
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"movq (%1, %3), %%mm1 \n\t"
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"psubusb %%mm7, %%mm2 \n\t"
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PAVGB" 1(%1, %3), %%mm1 \n\t"
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PAVGB" 1(%1, %%eax), %%mm2 \n\t"
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"addl %%eax, %1 \n\t"
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PAVGB" %%mm1, %%mm0 \n\t"
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PAVGB" %%mm2, %%mm1 \n\t"
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PAVGB" (%2), %%mm0 \n\t"
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PAVGB" (%2, %3), %%mm1 \n\t"
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"movq %%mm0, (%2) \n\t"
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"movq %%mm1, (%2, %3) \n\t"
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"movq (%1, %3), %%mm1 \n\t"
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"movq (%1, %%eax), %%mm0 \n\t"
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PAVGB" 1(%1, %3), %%mm1 \n\t"
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PAVGB" 1(%1, %%eax), %%mm0 \n\t"
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"addl %%eax, %2 \n\t"
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"addl %%eax, %1 \n\t"
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PAVGB" %%mm1, %%mm2 \n\t"
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PAVGB" %%mm0, %%mm1 \n\t"
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PAVGB" (%2), %%mm2 \n\t"
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PAVGB" (%2, %3), %%mm1 \n\t"
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"movq %%mm2, (%2) \n\t"
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"movq %%mm1, (%2, %3) \n\t"
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"addl %%eax, %2 \n\t"
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"subl $4, %0 \n\t"
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"jnz 1b \n\t"
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:"+g"(h), "+S"(pixels), "+D"(block)
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:"r" (line_size)
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:"%eax", "memory");
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}
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