libkmstest/testpat.cpp

   1
   2 //#define DRAW_PERF_PRINT
   3
   4 #include <chrono>
   5 #include <cstring>
   6 #include <cassert>
   7
   8 #include <xf86drm.h>
   9 #include <xf86drmMode.h>
  10 #include <drm_fourcc.h>
  11 #include <drm.h>
  12 #include <drm_mode.h>
  13
  14 #include "kms++.h"
  15 #include "test.h"
  16 #include "cpuframebuffer.h"
  17
  18 #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
  19
  20 namespace kms
  21 {
  22 static void draw_rgb_pixel(IMappedFramebuffer& buf, unsigned x, unsigned y, RGB color)
  23 {
  24         switch (buf.format()) {
  25         case PixelFormat::XRGB8888:
  26         case PixelFormat::ARGB8888:
  27         {
  28                 uint32_t *p = (uint32_t*)(buf.map(0) + buf.stride(0) * y + x * 4);
  29                 *p = color.argb8888();
  30                 break;
  31         }
  32         case PixelFormat::XBGR8888:
  33         case PixelFormat::ABGR8888:
  34         {
  35                 uint32_t *p = (uint32_t*)(buf.map(0) + buf.stride(0) * y + x * 4);
  36                 *p = color.abgr8888();
  37                 break;
  38         }
  39         case PixelFormat::RGB565:
  40         {
  41                 uint16_t *p = (uint16_t*)(buf.map(0) + buf.stride(0) * y + x * 2);
  42                 *p = color.rgb565();
  43                 break;
  44         }
  45         default:
  46                 throw std::invalid_argument("invalid pixelformat");
  47         }
  48 }
  49
  50 static void draw_yuv422_macropixel(IMappedFramebuffer& buf, unsigned x, unsigned y, YUV yuv1, YUV yuv2)
  51 {
  52         ASSERT((x & 1) == 0);
  53
  54         uint8_t *p = (uint8_t*)(buf.map(0) + buf.stride(0) * y + x * 2);
  55
  56         uint8_t y0 = yuv1.y;
  57         uint8_t y1 = yuv2.y;
  58         uint8_t u = (yuv1.u + yuv2.u) / 2;
  59         uint8_t v = (yuv1.v + yuv2.v) / 2;
  60
  61         switch (buf.format()) {
  62         case PixelFormat::UYVY:
  63                 p[0] = u;
  64                 p[1] = y0;
  65                 p[2] = v;
  66                 p[3] = y1;
  67                 break;
  68
  69         case PixelFormat::YUYV:
  70                 p[0] = y0;
  71                 p[1] = u;
  72                 p[2] = y1;
  73                 p[3] = v;
  74                 break;
  75
  76         case PixelFormat::YVYU:
  77                 p[0] = y0;
  78                 p[1] = v;
  79                 p[2] = y1;
  80                 p[3] = u;
  81                 break;
  82
  83         case PixelFormat::VYUY:
  84                 p[0] = v;
  85                 p[1] = y0;
  86                 p[2] = u;
  87                 p[3] = y1;
  88                 break;
  89
  90         default:
  91                 throw std::invalid_argument("invalid pixelformat");
  92         }
  93 }
  94
  95 static void draw_yuv420_macropixel(IMappedFramebuffer& buf, unsigned x, unsigned y,
  96                                    YUV yuv1, YUV yuv2, YUV yuv3, YUV yuv4)
  97 {
  98         ASSERT((x & 1) == 0);
  99         ASSERT((y & 1) == 0);
 100
 101         uint8_t *py1 = (uint8_t*)(buf.map(0) + buf.stride(0) * (y + 0) + x);
 102         uint8_t *py2 = (uint8_t*)(buf.map(0) + buf.stride(0) * (y + 1) + x);
 103
 104         uint8_t *puv = (uint8_t*)(buf.map(1) + buf.stride(1) * (y / 2) + x);
 105
 106         uint8_t y0 = yuv1.y;
 107         uint8_t y1 = yuv2.y;
 108         uint8_t y2 = yuv3.y;
 109         uint8_t y3 = yuv4.y;
 110         uint8_t u = (yuv1.u + yuv2.u + yuv3.u + yuv4.u) / 4;
 111         uint8_t v = (yuv1.v + yuv2.v + yuv3.v + yuv4.v) / 4;
 112
 113         switch (buf.format()) {
 114         case PixelFormat::NV12:
 115                 py1[0] = y0;
 116                 py1[1] = y1;
 117                 py2[0] = y2;
 118                 py2[1] = y3;
 119                 puv[0] = u;
 120                 puv[1] = v;
 121                 break;
 122
 123         case PixelFormat::NV21:
 124                 py1[0] = y0;
 125                 py1[1] = y1;
 126                 py2[0] = y2;
 127                 py2[1] = y3;
 128                 puv[0] = v;
 129                 puv[1] = u;
 130                 break;
 131
 132         default:
 133                 throw std::invalid_argument("invalid pixelformat");
 134         }
 135 }
 136
 137 static RGB get_test_pattern_pixel(IMappedFramebuffer& fb, unsigned x, unsigned y)
 138 {
 139         const unsigned w = fb.width();
 140         const unsigned h = fb.height();
 141
 142         const unsigned mw = 20;
 143
 144         const unsigned xm1 = mw;
 145         const unsigned xm2 = w - mw - 1;
 146         const unsigned ym1 = mw;
 147         const unsigned ym2 = h - mw - 1;
 148
 149         // white margin lines
 150         if (x == xm1 || x == xm2 || y == ym1 || y == ym2)
 151                 return RGB(255, 255, 255);
 152         // white box outlines to corners
 153         else if ((x == 0 || x == w - 1) && (y < ym1 || y > ym2))
 154                 return RGB(255, 255, 255);
 155         // white box outlines to corners
 156         else if ((y == 0 || y == h - 1) && (x < xm1 || x > xm2))
 157                 return RGB(255, 255, 255);
 158         // blue bar on the left
 159         else if (x < xm1 && (y > ym1 && y < ym2))
 160                 return RGB(0, 0, 255);
 161         // blue bar on the top
 162         else if (y < ym1 && (x > xm1 && x < xm2))
 163                 return RGB(0, 0, 255);
 164         // red bar on the right
 165         else if (x > xm2 && (y > ym1 && y < ym2))
 166                 return RGB(255, 0, 0);
 167         // red bar on the bottom
 168         else if (y > ym2 && (x > xm1 && x < xm2))
 169                 return RGB(255, 0, 0);
 170         // inside the margins
 171         else if (x > xm1 && x < xm2 && y > ym1 && y < ym2) {
 172                 // diagonal line
 173                 if (x == y || w - x == h - y)
 174                         return RGB(255, 255, 255);
 175                 // diagonal line
 176                 else if (w - x == y || x == h - y)
 177                         return RGB(255, 255, 255);
 178                 else {
 179                         int t = (x - xm1 - 1) * 8 / (xm2 - xm1 - 1);
 180                         unsigned r = 0, g = 0, b = 0;
 181
 182                         unsigned c = (y - ym1 - 1) % 256;
 183
 184                         switch (t) {
 185                         case 0:
 186                                 r = c;
 187                                 break;
 188                         case 1:
 189                                 g = c;
 190                                 break;
 191                         case 2:
 192                                 b = c;
 193                                 break;
 194                         case 3:
 195                                 g = b = c;
 196                                 break;
 197                         case 4:
 198                                 r = b = c;
 199                                 break;
 200                         case 5:
 201                                 r = g = c;
 202                                 break;
 203                         case 6:
 204                                 r = g = b = c;
 205                                 break;
 206                         case 7:
 207                                 break;
 208                         }
 209
 210                         return RGB(r, g, b);
 211                 }
 212         } else {
 213                 // black corners
 214                 return RGB(0, 0, 0);
 215         }
 216 }
 217
 218 static void draw_test_pattern_impl(IMappedFramebuffer& fb)
 219 {
 220         unsigned x, y;
 221         unsigned w = fb.width();
 222         unsigned h = fb.height();
 223
 224         switch (fb.format()) {
 225         case PixelFormat::XRGB8888:
 226         case PixelFormat::XBGR8888:
 227         case PixelFormat::ARGB8888:
 228         case PixelFormat::ABGR8888:
 229         case PixelFormat::RGB565:
 230                 for (y = 0; y < h; y++) {
 231                         for (x = 0; x < w; x++) {
 232                                 RGB pixel = get_test_pattern_pixel(fb, x, y);
 233                                 draw_rgb_pixel(fb, x, y, pixel);
 234                         }
 235                 }
 236                 break;
 237
 238         case PixelFormat::UYVY:
 239         case PixelFormat::YUYV:
 240         case PixelFormat::YVYU:
 241         case PixelFormat::VYUY:
 242                 for (y = 0; y < h; y++) {
 243                         for (x = 0; x < w; x += 2) {
 244                                 RGB pixel1 = get_test_pattern_pixel(fb, x, y);
 245                                 RGB pixel2 = get_test_pattern_pixel(fb, x + 1, y);
 246                                 draw_yuv422_macropixel(fb, x, y, pixel1.yuv(), pixel2.yuv());
 247                         }
 248                 }
 249                 break;
 250
 251         case PixelFormat::NV12:
 252         case PixelFormat::NV21:
 253                 for (y = 0; y < h; y += 2) {
 254                         for (x = 0; x < w; x += 2) {
 255                                 RGB pixel00 = get_test_pattern_pixel(fb, x, y);
 256                                 RGB pixel10 = get_test_pattern_pixel(fb, x + 1, y);
 257                                 RGB pixel01 = get_test_pattern_pixel(fb, x, y + 1);
 258                                 RGB pixel11 = get_test_pattern_pixel(fb, x + 1, y + 1);
 259                                 draw_yuv420_macropixel(fb, x, y,
 260                                                        pixel00.yuv(), pixel10.yuv(),
 261                                                        pixel01.yuv(), pixel11.yuv());
 262                         }
 263                 }
 264                 break;
 265         default:
 266                 throw std::invalid_argument("unknown pixelformat");
 267         }
 268 }
 269
 270 void draw_test_pattern(IMappedFramebuffer &fb)
 271 {
 272 #ifdef DRAW_PERF_PRINT
 273         using namespace std::chrono;
 274
 275         auto t1 = high_resolution_clock::now();
 276 #endif
 277
 278         draw_test_pattern_impl(fb);
 279
 280 #ifdef DRAW_PERF_PRINT
 281         auto t2 = high_resolution_clock::now();
 282         auto time_span = duration_cast<microseconds>(t2 - t1);
 283
 284         printf("draw took %u us\n", (unsigned)time_span.count());
 285 #endif
 286 }
 287
 288 void draw_rect(IMappedFramebuffer &fb, uint32_t x, uint32_t y, uint32_t w, uint32_t h, RGB color)
 289 {
 290         for (unsigned i = x; i < x + w; ++i) {
 291                 for (unsigned j = y; j < y + h; ++j) {
 292                         draw_rgb_pixel(fb, i, j, color);
 293                 }
 294         }
 295 }
 296
 297 }