2 * LIBOIL - Library of Optimized Inner Loops
3 * Copyright (c) 2006 David A. Schleef <ds@schleef.org>
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
17 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
19 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
20 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
21 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
23 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
24 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
25 * POSSIBILITY OF SUCH DAMAGE.
31 #include <liboil/liboilfunction.h>
32 #include <liboil/liboilclasses.h>
35 convert_u8_s16_mmx (uint8_t * dest, const int16_t * src, int n)
50 __asm__ __volatile__ ("\n"
52 " movq 0(%1), %%mm0\n"
53 " packuswb 8(%1), %%mm0\n"
54 " movq %%mm0, 0(%0)\n"
60 : "+r" (dest), "+r" (src), "+r" (n));
62 OIL_DEFINE_IMPL_FULL (convert_u8_s16_mmx, convert_u8_s16, OIL_IMPL_FLAG_MMX);
65 convert_u8_s16_mmx_2 (uint8_t * dest, const int16_t * src, int n)
81 __asm__ __volatile__ ("\n"
82 " movq 0(%1), %%mm0\n"
83 " packuswb 8(%1), %%mm0\n"
84 " movq %%mm0, 0(%0)\n"
87 : "+r" (dest), "+r" (src), "+r" (n));
92 __asm__ __volatile__ ("\n"
94 " movq 0(%1), %%mm0\n"
95 " packuswb 8(%1), %%mm0\n"
96 " movq %%mm0, 0(%0)\n"
97 " movq 16(%1), %%mm0\n"
98 " packuswb 24(%1), %%mm0\n"
99 " movq %%mm0, 8(%0)\n"
104 : "+r" (dest), "+r" (src), "+r" (n));
106 __asm__ __volatile__ ("emms\n");
108 OIL_DEFINE_IMPL_FULL (convert_u8_s16_mmx_2, convert_u8_s16, OIL_IMPL_FLAG_MMX);
111 convert_s16_u8_mmx (int16_t * dest, const uint8_t * src, int n)
123 __asm__ __volatile__ ("\n"
124 " pxor %%mm0, %%mm0\n"
126 " movd 0(%1), %%mm1\n"
127 " punpcklbw %%mm0, %%mm1\n"
128 " movq %%mm1, 0(%0)\n"
129 " movd 4(%1), %%mm2\n"
130 " punpcklbw %%mm0, %%mm2\n"
131 " movq %%mm2, 8(%0)\n"
137 : "+r" (dest), "+r" (src), "+r" (n));
139 OIL_DEFINE_IMPL_FULL (convert_s16_u8_mmx, convert_s16_u8, OIL_IMPL_FLAG_MMX);