95 lines
3.4 KiB
C
95 lines
3.4 KiB
C
|
/*
|
||
|
|
* MMX-optimized avg/put pixel routines
|
||
|
|
*
|
||
|
|
* Copyright (c) 2000, 2001 Fabrice Bellard
|
||
|
|
* Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
|
||
|
|
*
|
||
|
|
* 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 <stddef.h>
|
||
|
|
#include <stdint.h>
|
||
|
|
|
||
|
|
#include "config.h"
|
||
|
|
#include "dsputil_mmx.h"
|
||
|
|
|
||
|
|
#if HAVE_MMX_INLINE
|
||
|
|
|
||
|
|
void ff_put_pixels8_mmx(uint8_t *block, const uint8_t *pixels,
|
||
|
|
ptrdiff_t line_size, int h)
|
||
|
|
{
|
||
|
|
__asm__ volatile (
|
||
|
|
"lea (%3, %3), %%"REG_a" \n\t"
|
||
|
|
".p2align 3 \n\t"
|
||
|
|
"1: \n\t"
|
||
|
|
"movq (%1 ), %%mm0 \n\t"
|
||
|
|
"movq (%1, %3), %%mm1 \n\t"
|
||
|
|
"movq %%mm0, (%2) \n\t"
|
||
|
|
"movq %%mm1, (%2, %3) \n\t"
|
||
|
|
"add %%"REG_a", %1 \n\t"
|
||
|
|
"add %%"REG_a", %2 \n\t"
|
||
|
|
"movq (%1 ), %%mm0 \n\t"
|
||
|
|
"movq (%1, %3), %%mm1 \n\t"
|
||
|
|
"movq %%mm0, (%2) \n\t"
|
||
|
|
"movq %%mm1, (%2, %3) \n\t"
|
||
|
|
"add %%"REG_a", %1 \n\t"
|
||
|
|
"add %%"REG_a", %2 \n\t"
|
||
|
|
"subl $4, %0 \n\t"
|
||
|
|
"jnz 1b \n\t"
|
||
|
|
: "+g"(h), "+r"(pixels), "+r"(block)
|
||
|
|
: "r"((x86_reg)line_size)
|
||
|
|
: "%"REG_a, "memory"
|
||
|
|
);
|
||
|
|
}
|
||
|
|
|
||
|
|
void ff_put_pixels16_mmx(uint8_t *block, const uint8_t *pixels,
|
||
|
|
ptrdiff_t line_size, int h)
|
||
|
|
{
|
||
|
|
__asm__ volatile (
|
||
|
|
"lea (%3, %3), %%"REG_a" \n\t"
|
||
|
|
".p2align 3 \n\t"
|
||
|
|
"1: \n\t"
|
||
|
|
"movq (%1 ), %%mm0 \n\t"
|
||
|
|
"movq 8(%1 ), %%mm4 \n\t"
|
||
|
|
"movq (%1, %3), %%mm1 \n\t"
|
||
|
|
"movq 8(%1, %3), %%mm5 \n\t"
|
||
|
|
"movq %%mm0, (%2) \n\t"
|
||
|
|
"movq %%mm4, 8(%2) \n\t"
|
||
|
|
"movq %%mm1, (%2, %3) \n\t"
|
||
|
|
"movq %%mm5, 8(%2, %3) \n\t"
|
||
|
|
"add %%"REG_a", %1 \n\t"
|
||
|
|
"add %%"REG_a", %2 \n\t"
|
||
|
|
"movq (%1 ), %%mm0 \n\t"
|
||
|
|
"movq 8(%1 ), %%mm4 \n\t"
|
||
|
|
"movq (%1, %3), %%mm1 \n\t"
|
||
|
|
"movq 8(%1, %3), %%mm5 \n\t"
|
||
|
|
"movq %%mm0, (%2) \n\t"
|
||
|
|
"movq %%mm4, 8(%2) \n\t"
|
||
|
|
"movq %%mm1, (%2, %3) \n\t"
|
||
|
|
"movq %%mm5, 8(%2, %3) \n\t"
|
||
|
|
"add %%"REG_a", %1 \n\t"
|
||
|
|
"add %%"REG_a", %2 \n\t"
|
||
|
|
"subl $4, %0 \n\t"
|
||
|
|
"jnz 1b \n\t"
|
||
|
|
: "+g"(h), "+r"(pixels), "+r"(block)
|
||
|
|
: "r"((x86_reg)line_size)
|
||
|
|
: "%"REG_a, "memory"
|
||
|
|
);
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif /* HAVE_MMX_INLINE */
|