hvirtual/quicktime/libavcodec/ps2/dsputil_mmi.c

   1 /*
   2  * MMI optimized DSP utils
   3  * Copyright (c) 2000, 2001 Fabrice Bellard.
   4  *
   5  * This library is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Lesser General Public
   7  * License as published by the Free Software Foundation; either
   8  * version 2 of the License, or (at your option) any later version.
   9  *
  10  * This library is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * Lesser General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Lesser General Public
  16  * License along with this library; if not, write to the Free Software
  17  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  18  *
  19  * MMI optimization by Leon van Stuivenberg <leonvs@iae.nl>
  20  */
  21
  22 #include "../dsputil.h"
  23 #include "mmi.h"
  24
  25
  26 static void clear_blocks_mmi(DCTELEM * blocks)
  27 {
  28     int i;
  29     for (i = 0; i < 6; i++) {
  30         asm volatile(
  31         "sq     $0, 0(%0)       \n\t"
  32         "sq     $0, 16(%0)      \n\t"
  33         "sq     $0, 32(%0)      \n\t"
  34         "sq     $0, 48(%0)      \n\t"
  35         "sq     $0, 64(%0)      \n\t"
  36         "sq     $0, 80(%0)      \n\t"
  37         "sq     $0, 96(%0)      \n\t"
  38         "sq     $0, 112(%0)     \n\t" :: "r" (blocks) : "memory" );
  39         blocks += 64;
  40     }
  41 }
  42
  43
  44 static void get_pixels_mmi(DCTELEM *block, const UINT8 *pixels, int line_size)
  45 {
  46     int i;
  47     for(i=0;i<8;i++) {
  48         asm volatile(
  49         ".set   push            \n\t"
  50         ".set   mips3           \n\t"
  51         "ld     $8, 0(%1)       \n\t"
  52         "add    %1, %1, %2      \n\t"
  53         "pextlb $8, $0, $8      \n\t"
  54         "sq     $8, 0(%0)       \n\t"
  55         ".set   pop             \n\t"
  56         :: "r" (block), "r" (pixels), "r" (line_size) : "$8", "memory" );
  57         block += 8;
  58     }
  59 }
  60
  61
  62 static void put_pixels8_mmi(uint8_t *block, const uint8_t *pixels, int line_size, int h)
  63 {
  64     int i;
  65     for(i=0; i<h; i++) {
  66         asm volatile(
  67         ".set   push            \n\t"
  68         ".set   mips3           \n\t"
  69         "ldr    $8, 0(%1)       \n\t"
  70         "ldl    $8, 7(%1)       \n\t"
  71         "add    %1, %1, %2      \n\t"
  72         "sd     $8, 0(%0)       \n\t"
  73         "add    %0, %0, %2      \n\t"
  74         ".set   pop             \n\t"
  75         :: "r" (block), "r" (pixels), "r" (line_size) : "$8", "memory" );
  76     }
  77 }
  78
  79
  80 static void put_pixels16_mmi(uint8_t *block, const uint8_t *pixels, int line_size, int h)
  81 {
  82     int i;
  83     for(i=0; i<(h>>2); i++) {
  84         asm volatile (
  85         ".set   push            \n\t"
  86         ".set   mips3           \n\t"
  87 #define PUTPIX16 \
  88         "ldr    $8, 0(%1)       \n\t" \
  89         "ldl    $8, 7(%1)       \n\t" \
  90         "ldr    $9, 8(%1)       \n\t" \
  91         "ldl    $9, 15(%1)      \n\t" \
  92         "add    %1, %1, %2      \n\t" \
  93         "pcpyld $8, $9, $8      \n\t" \
  94         "sq     $8, 0(%0)       \n\t" \
  95         "add    %0, %0, %2      \n\t"
  96         PUTPIX16
  97         PUTPIX16
  98         PUTPIX16
  99         PUTPIX16
 100         ".set   pop             \n\t"
 101         :: "r" (block), "r" (pixels), "r" (line_size) : "$8", "$9", "memory" );
 102     }
 103 }
 104
 105
 106 void dsputil_init_mmi(DSPContext* c, unsigned mask)
 107 {
 108     c->clear_blocks = clear_blocks_mmi;
 109
 110     c->put_pixels_tab[1][0] = put_pixels8_mmi;
 111     c->put_no_rnd_pixels_tab[1][0] = put_pixels8_mmi;
 112
 113     c->put_pixels_tab[0][0] = put_pixels16_mmi;
 114     c->put_no_rnd_pixels_tab[0][0] = put_pixels16_mmi;
 115
 116     c->get_pixels = get_pixels_mmi;
 117 }
 118