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
|
//#define DRAW_PERF_PRINT
#include <cstring>
#include <cassert>
#include <thread>
#include <kms++.h>
#include <kms++util.h>
#include <cpuframebuffer.h>
#include "stopwatch.h"
using namespace std;
namespace kms
{
static RGB get_test_pattern_pixel(IMappedFramebuffer& fb, unsigned x, unsigned y)
{
const unsigned w = fb.width();
const unsigned h = fb.height();
const unsigned mw = 20;
const unsigned xm1 = mw;
const unsigned xm2 = w - mw - 1;
const unsigned ym1 = mw;
const unsigned ym2 = h - mw - 1;
// white margin lines
if (x == xm1 || x == xm2 || y == ym1 || y == ym2)
return RGB(255, 255, 255);
// white box outlines to corners
else if ((x == 0 || x == w - 1) && (y < ym1 || y > ym2))
return RGB(255, 255, 255);
// white box outlines to corners
else if ((y == 0 || y == h - 1) && (x < xm1 || x > xm2))
return RGB(255, 255, 255);
// blue bar on the left
else if (x < xm1 && (y > ym1 && y < ym2))
return RGB(0, 0, 255);
// blue bar on the top
else if (y < ym1 && (x > xm1 && x < xm2))
return RGB(0, 0, 255);
// red bar on the right
else if (x > xm2 && (y > ym1 && y < ym2))
return RGB(255, 0, 0);
// red bar on the bottom
else if (y > ym2 && (x > xm1 && x < xm2))
return RGB(255, 0, 0);
// inside the margins
else if (x > xm1 && x < xm2 && y > ym1 && y < ym2) {
// diagonal line
if (x == y || w - x == h - y)
return RGB(255, 255, 255);
// diagonal line
else if (w - x == y || x == h - y)
return RGB(255, 255, 255);
else {
int t = (x - xm1 - 1) * 8 / (xm2 - xm1 - 1);
unsigned r = 0, g = 0, b = 0;
unsigned c = (y - ym1 - 1) % 256;
switch (t) {
case 0:
r = c;
break;
case 1:
g = c;
break;
case 2:
b = c;
break;
case 3:
g = b = c;
break;
case 4:
r = b = c;
break;
case 5:
r = g = c;
break;
case 6:
r = g = b = c;
break;
case 7:
break;
}
return RGB(r, g, b);
}
} else {
// black corners
return RGB(0, 0, 0);
}
}
static void draw_test_pattern_part(IMappedFramebuffer& fb, unsigned start_y, unsigned end_y)
{
unsigned x, y;
unsigned w = fb.width();
switch (fb.format()) {
case PixelFormat::XRGB8888:
case PixelFormat::XBGR8888:
case PixelFormat::ARGB8888:
case PixelFormat::ABGR8888:
case PixelFormat::RGB565:
for (y = start_y; y < end_y; y++) {
for (x = 0; x < w; x++) {
RGB pixel = get_test_pattern_pixel(fb, x, y);
draw_rgb_pixel(fb, x, y, pixel);
}
}
break;
case PixelFormat::UYVY:
case PixelFormat::YUYV:
case PixelFormat::YVYU:
case PixelFormat::VYUY:
for (y = start_y; y < end_y; y++) {
for (x = 0; x < w; x += 2) {
RGB pixel1 = get_test_pattern_pixel(fb, x, y);
RGB pixel2 = get_test_pattern_pixel(fb, x + 1, y);
draw_yuv422_macropixel(fb, x, y, pixel1.yuv(), pixel2.yuv());
}
}
break;
case PixelFormat::NV12:
case PixelFormat::NV21:
for (y = start_y; y < end_y; y += 2) {
for (x = 0; x < w; x += 2) {
RGB pixel00 = get_test_pattern_pixel(fb, x, y);
RGB pixel10 = get_test_pattern_pixel(fb, x + 1, y);
RGB pixel01 = get_test_pattern_pixel(fb, x, y + 1);
RGB pixel11 = get_test_pattern_pixel(fb, x + 1, y + 1);
draw_yuv420_macropixel(fb, x, y,
pixel00.yuv(), pixel10.yuv(),
pixel01.yuv(), pixel11.yuv());
}
}
break;
default:
throw std::invalid_argument("unknown pixelformat");
}
}
static void draw_test_pattern_impl(IMappedFramebuffer& fb)
{
if (fb.height() < 20) {
draw_test_pattern_part(fb, 0, fb.height());
return;
}
unsigned num_threads = thread::hardware_concurrency();
vector<thread> workers;
unsigned part = (fb.height() / num_threads) & ~1;
for (unsigned n = 0; n < num_threads; ++n) {
unsigned start = n * part;
unsigned end = start + part;
if (n == num_threads - 1)
end = fb.height();
workers.push_back(thread([&fb, start, end]() { draw_test_pattern_part(fb, start, end); }));
}
for (thread& t : workers)
t.join();
}
void draw_test_pattern(IMappedFramebuffer &fb)
{
#ifdef DRAW_PERF_PRINT
Stopwatch sw;
sw.start();
#endif
draw_test_pattern_impl(fb);
#ifdef DRAW_PERF_PRINT
double us = sw.elapsed_us();
printf("draw took %u us\n", (unsigned)us);
#endif
}
}
|
