libkmstest: cleanup colors and add xbgr8888 support
[android/external-libkmsxx.git] / libkmstest / testpat.cpp
2 #include <chrono>
3 #include <cstring>
4 #include <cassert>
6 #include <xf86drm.h>
7 #include <xf86drmMode.h>
8 #include <drm_fourcc.h>
9 #include <drm.h>
10 #include <drm_mode.h>
12 #include "kms++.h"
13 #include "color.h"
15 #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
17 namespace kms
18 {
19 static void draw_pixel(DumbFramebuffer& buf, unsigned x, unsigned y, RGB color)
20 {
21         static RGB c1;
23         switch (buf.format()) {
24         case PixelFormat::XRGB8888:
25         {
26                 uint32_t *p = (uint32_t*)(buf.map(0) + buf.stride(0) * y + x * 4);
27                 *p = color.rgb888();
28                 break;
29         }
30         case PixelFormat::XBGR8888:
31         {
32                 uint32_t *p = (uint32_t*)(buf.map(0) + buf.stride(0) * y + x * 4);
33                 *p = color.bgr888();
34                 break;
35         }
36         case PixelFormat::RGB565:
37         {
38                 uint16_t *p = (uint16_t*)(buf.map(0) + buf.stride(0) * y + x * 2);
39                 *p = color.rgb565();
40                 break;
41         }
42         case PixelFormat::UYVY:
43         {
44                 if ((x & 1) == 0) {
45                         c1 = color;
46                         return;
47                 }
49                 uint8_t *p = (uint8_t*)(buf.map(0) + buf.stride(0) * y + x * 2);
51                 YUV yuv1 = c1.yuv();
52                 YUV yuv2 = color.yuv();
54                 p[0] = (yuv1.u + yuv2.u) / 2;
55                 p[1] = yuv1.y;
56                 p[2] = (yuv1.v + yuv2.v) / 2;
57                 p[3] = yuv2.y;
58                 break;
59         }
60         case PixelFormat::YUYV:
61         {
62                 if ((x & 1) == 0) {
63                         c1 = color;
64                         return;
65                 }
67                 uint8_t *p = (uint8_t*)(buf.map(0) + buf.stride(0) * y + x * 2);
69                 YUV yuv1 = c1.yuv();
70                 YUV yuv2 = color.yuv();
72                 p[0] = yuv1.y;
73                 p[1] = (yuv1.u + yuv2.u) / 2;
74                 p[2] = yuv2.y;
75                 p[3] = (yuv1.v + yuv2.v) / 2;
76                 break;
77         }
78         default:
79                 throw std::invalid_argument("unknown pixelformat");
80         }
81 }
83 static void draw_rgb_test_pattern(DumbFramebuffer& fb)
84 {
85         unsigned x, y;
86         unsigned w = fb.width();
87         unsigned h = fb.height();
89         const unsigned mw = 20;
91         const unsigned xm1 = mw;
92         const unsigned xm2 = w - mw - 1;
93         const unsigned ym1 = mw;
94         const unsigned ym2 = h - mw - 1;
96         for (y = 0; y < h; y++) {
97                 for (x = 0; x < w; x++) {
98                         // white margin lines
99                         if (x == xm1 || x == xm2 || y == ym1 || y == ym2)
100                                 draw_pixel(fb, x, y, RGB(255, 255, 255));
101                         // white box outlines to corners
102                         else if ((x == 0 || x == w - 1) && (y < ym1 || y > ym2))
103                                 draw_pixel(fb, x, y, RGB(255, 255, 255));
104                         // white box outlines to corners
105                         else if ((y == 0 || y == h - 1) && (x < xm1 || x > xm2))
106                                 draw_pixel(fb, x, y, RGB(255, 255, 255));
107                         // blue bar on the left
108                         else if (x < xm1 && (y > ym1 && y < ym2))
109                                 draw_pixel(fb, x, y, RGB(0, 0, 255));
110                         // blue bar on the top
111                         else if (y < ym1 && (x > xm1 && x < xm2))
112                                 draw_pixel(fb, x, y, RGB(0, 0, 255));
113                         // red bar on the right
114                         else if (x > xm2 && (y > ym1 && y < ym2))
115                                 draw_pixel(fb, x, y, RGB(255, 0, 0));
116                         // red bar on the bottom
117                         else if (y > ym2 && (x > xm1 && x < xm2))
118                                 draw_pixel(fb, x, y, RGB(255, 0, 0));
119                         // inside the margins
120                         else if (x > xm1 && x < xm2 && y > ym1 && y < ym2) {
121                                 // diagonal line
122                                 if (x == y || w - x == h - y)
123                                         draw_pixel(fb, x, y, RGB(255, 255, 255));
124                                 // diagonal line
125                                 else if (w - x == y || x == h - y)
126                                         draw_pixel(fb, x, y, RGB(255, 255, 255));
127                                 else {
128                                         int t = (x - xm1 - 1) * 3 / (xm2 - xm1 - 1);
129                                         unsigned r = 0, g = 0, b = 0;
131                                         unsigned c = (y - ym1 - 1) % 256;
133                                         switch (t) {
134                                         case 0:
135                                                 r = c;
136                                                 break;
137                                         case 1:
138                                                 g = c;
139                                                 break;
140                                         case 2:
141                                                 b = c;
142                                                 break;
143                                         }
145                                         draw_pixel(fb, x, y, RGB(r, g, b));
146                                 }
147                                 // black corners
148                         } else {
149                                 draw_pixel(fb, x, y, RGB(0, 0, 0));
150                         }
151                 }
152         }
155 void draw_test_pattern(DumbFramebuffer& fb)
157         using namespace std::chrono;
159         auto t1 = high_resolution_clock::now();
161         draw_rgb_test_pattern(fb);
163         auto t2 = high_resolution_clock::now();
164         auto time_span = duration_cast<microseconds>(t2 - t1);
166         printf("draw took %u us\n", (unsigned)time_span.count());