FFmpeg
pixblockdsp_msa.c
Go to the documentation of this file.
1 /*
2  * Copyright (c) 2015 Shivraj Patil (Shivraj.Patil@imgtec.com)
3  *
4  * This file is part of FFmpeg.
5  *
6  * FFmpeg is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2.1 of the License, or (at your option) any later version.
10  *
11  * FFmpeg is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with FFmpeg; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19  */
20 
22 #include "pixblockdsp_mips.h"
23 
24 static void diff_pixels_msa(int16_t *block, const uint8_t *src1,
25  const uint8_t *src2, int32_t stride)
26 {
27  v16u8 in10, in11, in12, in13, in14, in15, in16, in17;
28  v16u8 in20, in21, in22, in23, in24, in25, in26, in27;
29  v8i16 out0, out1, out2, out3, out4, out5, out6, out7;
30 
31  LD_UB8(src1, stride, in10, in11, in12, in13, in14, in15, in16, in17);
32  LD_UB8(src2, stride, in20, in21, in22, in23, in24, in25, in26, in27);
33  ILVR_B4_SH(in10, in20, in11, in21, in12, in22, in13, in23,
34  out0, out1, out2, out3);
35  ILVR_B4_SH(in14, in24, in15, in25, in16, in26, in17, in27,
36  out4, out5, out6, out7);
37  HSUB_UB4_SH(out0, out1, out2, out3, out0, out1, out2, out3);
38  HSUB_UB4_SH(out4, out5, out6, out7, out4, out5, out6, out7);
39  ST_SH8(out0, out1, out2, out3, out4, out5, out6, out7, block, 8);
40 }
41 
42 static void copy_8bit_to_16bit_width8_msa(const uint8_t *src, int32_t src_stride,
43  int16_t *dst, int32_t dst_stride,
45 {
46  uint8_t *dst_ptr;
47  int32_t cnt;
48  v16u8 src0, src1, src2, src3;
49  v16i8 zero = { 0 };
50 
51  dst_ptr = (uint8_t *) dst;
52 
53  for (cnt = (height >> 2); cnt--;) {
54  LD_UB4(src, src_stride, src0, src1, src2, src3);
55  src += (4 * src_stride);
56 
57  ILVR_B4_UB(zero, src0, zero, src1, zero, src2, zero, src3,
58  src0, src1, src2, src3);
59 
60  ST_UB4(src0, src1, src2, src3, dst_ptr, (dst_stride * 2));
61  dst_ptr += (4 * 2 * dst_stride);
62  }
63 }
64 
65 static void copy_16multx8mult_msa(const uint8_t *src, int32_t src_stride,
66  uint8_t *dst, int32_t dst_stride,
68 {
69  int32_t cnt, loop_cnt;
70  const uint8_t *src_tmp;
71  uint8_t *dst_tmp;
72  v16u8 src0, src1, src2, src3, src4, src5, src6, src7;
73 
74  for (cnt = (width >> 4); cnt--;) {
75  src_tmp = src;
76  dst_tmp = dst;
77 
78  for (loop_cnt = (height >> 3); loop_cnt--;) {
79  LD_UB8(src_tmp, src_stride,
80  src0, src1, src2, src3, src4, src5, src6, src7);
81  src_tmp += (8 * src_stride);
82 
83  ST_UB8(src0, src1, src2, src3, src4, src5, src6, src7,
84  dst_tmp, dst_stride);
85  dst_tmp += (8 * dst_stride);
86  }
87 
88  src += 16;
89  dst += 16;
90  }
91 }
92 
93 static void copy_width16_msa(const uint8_t *src, int32_t src_stride,
94  uint8_t *dst, int32_t dst_stride,
96 {
97  int32_t cnt;
98  v16u8 src0, src1, src2, src3, src4, src5, src6, src7;
99 
100  if (0 == height % 12) {
101  for (cnt = (height / 12); cnt--;) {
102  LD_UB8(src, src_stride,
103  src0, src1, src2, src3, src4, src5, src6, src7);
104  src += (8 * src_stride);
105  ST_UB8(src0, src1, src2, src3, src4, src5, src6, src7,
106  dst, dst_stride);
107  dst += (8 * dst_stride);
108 
109  LD_UB4(src, src_stride, src0, src1, src2, src3);
110  src += (4 * src_stride);
111  ST_UB4(src0, src1, src2, src3, dst, dst_stride);
112  dst += (4 * dst_stride);
113  }
114  } else if (0 == height % 8) {
115  copy_16multx8mult_msa(src, src_stride, dst, dst_stride, height, 16);
116  } else if (0 == height % 4) {
117  for (cnt = (height >> 2); cnt--;) {
118  LD_UB4(src, src_stride, src0, src1, src2, src3);
119  src += (4 * src_stride);
120 
121  ST_UB4(src0, src1, src2, src3, dst, dst_stride);
122  dst += (4 * dst_stride);
123  }
124  }
125 }
126 
127 void ff_get_pixels_16_msa(int16_t *av_restrict dest, const uint8_t *src,
128  ptrdiff_t stride)
129 {
130  copy_width16_msa(src, stride, (uint8_t *) dest, 16, 8);
131 }
132 
133 void ff_get_pixels_8_msa(int16_t *av_restrict dest, const uint8_t *src,
134  ptrdiff_t stride)
135 {
136  copy_8bit_to_16bit_width8_msa(src, stride, dest, 8, 8);
137 }
138 
139 void ff_diff_pixels_msa(int16_t *av_restrict block, const uint8_t *src1,
140  const uint8_t *src2, ptrdiff_t stride)
141 {
142  diff_pixels_msa(block, src1, src2, stride);
143 }
static void copy_8bit_to_16bit_width8_msa(const uint8_t *src, int32_t src_stride, int16_t *dst, int32_t dst_stride, int32_t height)
#define HSUB_UB4_SH(...)
#define LD_UB4(...)
#define src
Definition: vp8dsp.c:254
The exact code depends on how similar the blocks are and how related they are to the block
uint8_t
#define height
void ff_diff_pixels_msa(int16_t *av_restrict block, const uint8_t *src1, const uint8_t *src2, ptrdiff_t stride)
#define zero
Definition: regdef.h:64
static void copy_16multx8mult_msa(const uint8_t *src, int32_t src_stride, uint8_t *dst, int32_t dst_stride, int32_t height, int32_t width)
#define ILVR_B4_UB(...)
void ff_get_pixels_8_msa(int16_t *av_restrict dest, const uint8_t *src, ptrdiff_t stride)
#define LD_UB8(...)
#define width
int32_t
#define ST_UB8(...)
#define ST_UB4(...)
#define src1
Definition: h264pred.c:139
static void copy_width16_msa(const uint8_t *src, int32_t src_stride, uint8_t *dst, int32_t dst_stride, int32_t height)
#define ILVR_B4_SH(...)
static void diff_pixels_msa(int16_t *block, const uint8_t *src1, const uint8_t *src2, int32_t stride)
#define src0
Definition: h264pred.c:138
void ff_get_pixels_16_msa(int16_t *av_restrict dest, const uint8_t *src, ptrdiff_t stride)
GLint GLenum GLboolean GLsizei stride
Definition: opengl_enc.c:104
#define ST_SH8(...)