MpegEncContext.(i)dct_* -> DspContext.(i)dct_*
[libav.git] / 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 void ff_mmi_idct_put(uint8_t *dest, int line_size, DCTELEM *block);
26 void ff_mmi_idct_add(uint8_t *dest, int line_size, DCTELEM *block);
27
28
29 static void clear_blocks_mmi(DCTELEM * blocks)
30 {
31 int i;
32 for (i = 0; i < 6; i++) {
33 asm volatile(
34 "sq $0, 0(%0) \n\t"
35 "sq $0, 16(%0) \n\t"
36 "sq $0, 32(%0) \n\t"
37 "sq $0, 48(%0) \n\t"
38 "sq $0, 64(%0) \n\t"
39 "sq $0, 80(%0) \n\t"
40 "sq $0, 96(%0) \n\t"
41 "sq $0, 112(%0) \n\t" :: "r" (blocks) : "memory" );
42 blocks += 64;
43 }
44 }
45
46
47 static void get_pixels_mmi(DCTELEM *block, const uint8_t *pixels, int line_size)
48 {
49 int i;
50 for(i=0;i<8;i++) {
51 asm volatile(
52 ".set push \n\t"
53 ".set mips3 \n\t"
54 "ld $8, 0(%1) \n\t"
55 "add %1, %1, %2 \n\t"
56 "pextlb $8, $0, $8 \n\t"
57 "sq $8, 0(%0) \n\t"
58 ".set pop \n\t"
59 :: "r" (block), "r" (pixels), "r" (line_size) : "$8", "memory" );
60 block += 8;
61 }
62 }
63
64
65 static void put_pixels8_mmi(uint8_t *block, const uint8_t *pixels, int line_size, int h)
66 {
67 int i;
68 for(i=0; i<h; i++) {
69 asm volatile(
70 ".set push \n\t"
71 ".set mips3 \n\t"
72 "ldr $8, 0(%1) \n\t"
73 "ldl $8, 7(%1) \n\t"
74 "add %1, %1, %2 \n\t"
75 "sd $8, 0(%0) \n\t"
76 "add %0, %0, %2 \n\t"
77 ".set pop \n\t"
78 :: "r" (block), "r" (pixels), "r" (line_size) : "$8", "memory" );
79 }
80 }
81
82
83 static void put_pixels16_mmi(uint8_t *block, const uint8_t *pixels, int line_size, int h)
84 {
85 int i;
86 for(i=0; i<(h>>2); i++) {
87 asm volatile (
88 ".set push \n\t"
89 ".set mips3 \n\t"
90 #define PUTPIX16 \
91 "ldr $8, 0(%1) \n\t" \
92 "ldl $8, 7(%1) \n\t" \
93 "ldr $9, 8(%1) \n\t" \
94 "ldl $9, 15(%1) \n\t" \
95 "add %1, %1, %2 \n\t" \
96 "pcpyld $8, $9, $8 \n\t" \
97 "sq $8, 0(%0) \n\t" \
98 "add %0, %0, %2 \n\t"
99 PUTPIX16
100 PUTPIX16
101 PUTPIX16
102 PUTPIX16
103 ".set pop \n\t"
104 :: "r" (block), "r" (pixels), "r" (line_size) : "$8", "$9", "memory" );
105 }
106 }
107
108
109 void dsputil_init_mmi(DSPContext* c, AVCodecContext *avctx)
110 {
111 const int idct_algo= avctx->idct_algo;
112
113 c->clear_blocks = clear_blocks_mmi;
114
115 c->put_pixels_tab[1][0] = put_pixels8_mmi;
116 c->put_no_rnd_pixels_tab[1][0] = put_pixels8_mmi;
117
118 c->put_pixels_tab[0][0] = put_pixels16_mmi;
119 c->put_no_rnd_pixels_tab[0][0] = put_pixels16_mmi;
120
121 c->get_pixels = get_pixels_mmi;
122
123 if(idct_algo==FF_IDCT_AUTO || idct_algo==FF_IDCT_PS2){
124 c->idct_put= ff_mmi_idct_put;
125 c->idct_add= ff_mmi_idct_add;
126 c->idct_permutation_type= FF_LIBMPEG2_IDCT_PERM;
127 }
128 }
129