1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
|
// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2018 Texas Instruments Incorporated - https://www.ti.com/
* Author: Jyri Sarha <jsarha@ti.com>
*/
#include <linux/device.h>
#include <linux/kernel.h>
#include "tidss_scale_coefs.h"
/*
* These are interpolated with a custom python script from DSS5
* (drivers/gpu/drm/omapdrm/dss/dispc_coef.c) coefficients.
*/
static const struct tidss_scale_coefs coef5_m32 = {
.c2 = { 28, 34, 40, 46, 52, 58, 64, 70, 0, 2, 4, 8, 12, 16, 20, 24, },
.c1 = { 132, 138, 144, 150, 156, 162, 168, 174, 76, 84, 92, 98, 104, 110, 116, 124, },
.c0 = { 192, 192, 192, 190, 188, 186, 184, 182, 180, },
};
static const struct tidss_scale_coefs coef5_m26 = {
.c2 = { 24, 28, 32, 38, 44, 50, 56, 64, 0, 2, 4, 6, 8, 12, 16, 20, },
.c1 = { 132, 138, 144, 152, 160, 166, 172, 178, 72, 80, 88, 94, 100, 108, 116, 124, },
.c0 = { 200, 202, 204, 202, 200, 196, 192, 188, 184, },
};
static const struct tidss_scale_coefs coef5_m22 = {
.c2 = { 16, 20, 24, 30, 36, 42, 48, 56, 0, 0, 0, 2, 4, 8, 12, 14, },
.c1 = { 132, 140, 148, 156, 164, 172, 180, 186, 64, 72, 80, 88, 96, 104, 112, 122, },
.c0 = { 216, 216, 216, 214, 212, 208, 204, 198, 192, },
};
static const struct tidss_scale_coefs coef5_m19 = {
.c2 = { 12, 14, 16, 22, 28, 34, 40, 48, 0, 0, 0, 2, 4, 4, 4, 8, },
.c1 = { 128, 140, 152, 160, 168, 176, 184, 192, 56, 64, 72, 82, 92, 100, 108, 118, },
.c0 = { 232, 232, 232, 226, 220, 218, 216, 208, 200, },
};
static const struct tidss_scale_coefs coef5_m16 = {
.c2 = { 0, 2, 4, 8, 12, 18, 24, 32, 0, 0, 0, -2, -4, -4, -4, -2, },
.c1 = { 124, 138, 152, 164, 176, 186, 196, 206, 40, 48, 56, 68, 80, 90, 100, 112, },
.c0 = { 264, 262, 260, 254, 248, 242, 236, 226, 216, },
};
static const struct tidss_scale_coefs coef5_m14 = {
.c2 = { -8, -6, -4, -2, 0, 6, 12, 18, 0, -2, -4, -6, -8, -8, -8, -8, },
.c1 = { 120, 134, 148, 164, 180, 194, 208, 220, 24, 32, 40, 52, 64, 78, 92, 106, },
.c0 = { 288, 286, 284, 280, 276, 266, 256, 244, 232, },
};
static const struct tidss_scale_coefs coef5_m13 = {
.c2 = { -12, -12, -12, -10, -8, -4, 0, 6, 0, -2, -4, -6, -8, -10, -12, -12, },
.c1 = { 112, 130, 148, 164, 180, 196, 212, 228, 12, 22, 32, 44, 56, 70, 84, 98, },
.c0 = { 312, 308, 304, 298, 292, 282, 272, 258, 244, },
};
static const struct tidss_scale_coefs coef5_m12 = {
.c2 = { -16, -18, -20, -18, -16, -14, -12, -6, 0, -2, -4, -6, -8, -10, -12, -14, },
.c1 = { 104, 124, 144, 164, 184, 202, 220, 238, 0, 10, 20, 30, 40, 56, 72, 88, },
.c0 = { 336, 332, 328, 320, 312, 300, 288, 272, 256, },
};
static const struct tidss_scale_coefs coef5_m11 = {
.c2 = { -20, -22, -24, -24, -24, -24, -24, -20, 0, -2, -4, -6, -8, -10, -12, -16, },
.c1 = { 92, 114, 136, 158, 180, 204, 228, 250, -16, -8, 0, 12, 24, 38, 52, 72, },
.c0 = { 368, 364, 360, 350, 340, 326, 312, 292, 272, },
};
static const struct tidss_scale_coefs coef5_m10 = {
.c2 = { -16, -20, -24, -28, -32, -34, -36, -34, 0, 0, 0, -2, -4, -8, -12, -14, },
.c1 = { 72, 96, 120, 148, 176, 204, 232, 260, -32, -26, -20, -10, 0, 16, 32, 52, },
.c0 = { 400, 398, 396, 384, 372, 354, 336, 312, 288, },
};
static const struct tidss_scale_coefs coef5_m9 = {
.c2 = { -12, -18, -24, -28, -32, -38, -44, -46, 0, 2, 4, 2, 0, -2, -4, -8, },
.c1 = { 40, 68, 96, 128, 160, 196, 232, 268, -48, -46, -44, -36, -28, -14, 0, 20, },
.c0 = { 456, 450, 444, 428, 412, 388, 364, 334, 304, },
};
static const struct tidss_scale_coefs coef5_m8 = {
.c2 = { 0, -4, -8, -16, -24, -32, -40, -48, 0, 2, 4, 6, 8, 6, 4, 2, },
.c1 = { 0, 28, 56, 94, 132, 176, 220, 266, -56, -60, -64, -62, -60, -50, -40, -20, },
.c0 = { 512, 506, 500, 478, 456, 424, 392, 352, 312, },
};
static const struct tidss_scale_coefs coef3_m32 = {
.c1 = { 108, 92, 76, 62, 48, 36, 24, 140, 256, 236, 216, 198, 180, 162, 144, 126, },
.c0 = { 296, 294, 292, 288, 284, 278, 272, 136, 256, },
};
static const struct tidss_scale_coefs coef3_m26 = {
.c1 = { 104, 90, 76, 60, 44, 32, 20, 138, 256, 236, 216, 198, 180, 160, 140, 122, },
.c0 = { 304, 300, 296, 292, 288, 282, 276, 138, 256, },
};
static const struct tidss_scale_coefs coef3_m22 = {
.c1 = { 100, 84, 68, 54, 40, 30, 20, 138, 256, 236, 216, 196, 176, 156, 136, 118, },
.c0 = { 312, 310, 308, 302, 296, 286, 276, 138, 256, },
};
static const struct tidss_scale_coefs coef3_m19 = {
.c1 = { 96, 80, 64, 50, 36, 26, 16, 136, 256, 236, 216, 194, 172, 152, 132, 114, },
.c0 = { 320, 318, 316, 310, 304, 292, 280, 140, 256, },
};
static const struct tidss_scale_coefs coef3_m16 = {
.c1 = { 88, 72, 56, 44, 32, 22, 12, 134, 256, 234, 212, 190, 168, 148, 128, 108, },
.c0 = { 336, 332, 328, 320, 312, 300, 288, 144, 256, },
};
static const struct tidss_scale_coefs coef3_m14 = {
.c1 = { 80, 64, 48, 36, 24, 16, 8, 132, 256, 232, 208, 186, 164, 142, 120, 100, },
.c0 = { 352, 348, 344, 334, 324, 310, 296, 148, 256, },
};
static const struct tidss_scale_coefs coef3_m13 = {
.c1 = { 72, 56, 40, 30, 20, 12, 4, 130, 256, 232, 208, 184, 160, 136, 112, 92, },
.c0 = { 368, 364, 360, 346, 332, 316, 300, 150, 256, },
};
static const struct tidss_scale_coefs coef3_m12 = {
.c1 = { 64, 50, 36, 26, 16, 10, 4, 130, 256, 230, 204, 178, 152, 128, 104, 84, },
.c0 = { 384, 378, 372, 358, 344, 324, 304, 152, 256, },
};
static const struct tidss_scale_coefs coef3_m11 = {
.c1 = { 56, 40, 24, 16, 8, 4, 0, 128, 256, 228, 200, 172, 144, 120, 96, 76, },
.c0 = { 400, 396, 392, 376, 360, 336, 312, 156, 256, },
};
static const struct tidss_scale_coefs coef3_m10 = {
.c1 = { 40, 26, 12, 6, 0, -2, -4, 126, 256, 226, 196, 166, 136, 110, 84, 62, },
.c0 = { 432, 424, 416, 396, 376, 348, 320, 160, 256, },
};
static const struct tidss_scale_coefs coef3_m9 = {
.c1 = { 24, 12, 0, -4, -8, -8, -8, 124, 256, 222, 188, 154, 120, 92, 64, 44, },
.c0 = { 464, 456, 448, 424, 400, 366, 332, 166, 256, },
};
static const struct tidss_scale_coefs coef3_m8 = {
.c1 = { 0, -8, -16, -16, -16, -12, -8, 124, 256, 214, 172, 134, 96, 66, 36, 18, },
.c0 = { 512, 502, 492, 462, 432, 390, 348, 174, 256, },
};
const struct tidss_scale_coefs *tidss_get_scale_coefs(struct device *dev,
u32 firinc,
bool five_taps)
{
int i;
int inc;
static const struct {
int mmin;
int mmax;
const struct tidss_scale_coefs *coef3;
const struct tidss_scale_coefs *coef5;
const char *name;
} coefs[] = {
{ 27, 32, &coef3_m32, &coef5_m32, "M32" },
{ 23, 26, &coef3_m26, &coef5_m26, "M26" },
{ 20, 22, &coef3_m22, &coef5_m22, "M22" },
{ 17, 19, &coef3_m19, &coef5_m19, "M19" },
{ 15, 16, &coef3_m16, &coef5_m16, "M16" },
{ 14, 14, &coef3_m14, &coef5_m14, "M14" },
{ 13, 13, &coef3_m13, &coef5_m13, "M13" },
{ 12, 12, &coef3_m12, &coef5_m12, "M12" },
{ 11, 11, &coef3_m11, &coef5_m11, "M11" },
{ 10, 10, &coef3_m10, &coef5_m10, "M10" },
{ 9, 9, &coef3_m9, &coef5_m9, "M9" },
{ 4, 8, &coef3_m8, &coef5_m8, "M8" },
/*
* When upscaling more than two times, blockiness and outlines
* around the image are observed when M8 tables are used. M11,
* M16 and M19 tables are used to prevent this.
*/
{ 3, 3, &coef3_m11, &coef5_m11, "M11" },
{ 2, 2, &coef3_m16, &coef5_m16, "M16" },
{ 0, 1, &coef3_m19, &coef5_m19, "M19" },
};
/*
* inc is result of 0x200000 * in_size / out_size. This dividing
* by 0x40000 scales it down to 8 * in_size / out_size. After
* division the actual scaling factor is 8/inc.
*/
inc = firinc / 0x40000;
for (i = 0; i < ARRAY_SIZE(coefs); ++i) {
if (inc >= coefs[i].mmin && inc <= coefs[i].mmax) {
if (five_taps)
return coefs[i].coef5;
else
return coefs[i].coef3;
}
}
dev_err(dev, "%s: Coefficients not found for firinc 0x%08x, inc %d\n",
__func__, firinc, inc);
return NULL;
}
|
