tests/db.cpp

   1 #include <cstdio>
   2 #include <algorithm>
   3 #include <chrono>
   4
   5 #include <xf86drm.h>
   6 #include <xf86drmMode.h>
   7 #include <drm_fourcc.h>
   8
   9 #include "kms++.h"
  10
  11 #include "test.h"
  12
  13 using namespace std;
  14 using namespace kms;
  15
  16 static void main_loop(Card& card);
  17
  18 class Flipper
  19 {
  20 public:
  21         Flipper(Card& card, unsigned width, unsigned height)
  22                 : m_current(0), m_bar_xpos(0)
  23         {
  24                 auto format = PixelFormat::XRGB8888;
  25                 m_fbs[0] = new DumbFramebuffer(card, width, height, format);
  26                 m_fbs[1] = new DumbFramebuffer(card, width, height, format);
  27         }
  28
  29         ~Flipper()
  30         {
  31                 delete m_fbs[0];
  32                 delete m_fbs[1];
  33         }
  34
  35         Framebuffer* get_next()
  36         {
  37                 m_current ^= 1;
  38
  39                 const int bar_width = 20;
  40                 const int bar_speed = 8;
  41
  42                 auto fb = m_fbs[m_current];
  43
  44                 int current_xpos = m_bar_xpos;
  45                 int old_xpos = (current_xpos + (fb->width() - bar_width - bar_speed)) % (fb->width() - bar_width);
  46                 int new_xpos = (current_xpos + bar_speed) % (fb->width() - bar_width);
  47
  48                 draw_color_bar(*fb, old_xpos, new_xpos, bar_width);
  49
  50                 m_bar_xpos = new_xpos;
  51
  52                 return fb;
  53         }
  54
  55 private:
  56         DumbFramebuffer* m_fbs[2];
  57
  58         int m_current;
  59         int m_bar_xpos;
  60 };
  61
  62 class OutputFlipHandler : private PageFlipHandlerBase
  63 {
  64 public:
  65         OutputFlipHandler(Connector* conn, Crtc* crtc, const Videomode& mode)
  66                 : m_connector(conn), m_crtc(crtc), m_mode(mode),
  67                   m_flipper(conn->card(), mode.hdisplay, mode.vdisplay),
  68                   m_plane(0), m_plane_flipper(0)
  69         {
  70         }
  71
  72         OutputFlipHandler(Connector* conn, Crtc* crtc, const Videomode& mode,
  73                           Plane* plane, unsigned pwidth, unsigned pheight)
  74                 : m_connector(conn), m_crtc(crtc), m_mode(mode),
  75                   m_flipper(conn->card(), mode.hdisplay, mode.vdisplay),
  76                   m_plane(plane)
  77         {
  78                 m_plane_flipper = new Flipper(conn->card(), pwidth, pheight);
  79         }
  80
  81         ~OutputFlipHandler()
  82         {
  83                 if (m_plane_flipper)
  84                         delete m_plane_flipper;
  85         }
  86
  87         OutputFlipHandler(const OutputFlipHandler& other) = delete;
  88         OutputFlipHandler& operator=(const OutputFlipHandler& other) = delete;
  89
  90         void set_mode()
  91         {
  92                 auto mode = m_connector->get_default_mode();
  93                 auto fb = m_flipper.get_next();
  94                 int r = m_crtc->set_mode(m_connector, *fb, mode);
  95                 ASSERT(r == 0);
  96
  97                 if (m_plane) {
  98                         auto planefb = m_plane_flipper->get_next();
  99                         r = m_crtc->set_plane(m_plane, *planefb,
 100                                               0, 0, planefb->width(), planefb->height(),
 101                                               0, 0, planefb->width(), planefb->height());
 102                         ASSERT(r == 0);
 103                 }
 104         }
 105
 106         void start_flipping()
 107         {
 108                 m_t1 = std::chrono::steady_clock::now();
 109                 m_frame_num = 0;
 110                 queue_next();
 111         }
 112
 113 private:
 114         void handle_page_flip(uint32_t frame, double time)
 115         {
 116                 ++m_frame_num;
 117
 118                 if (m_frame_num  % 100 == 0) {
 119                         auto t2 = std::chrono::steady_clock::now();
 120                         std::chrono::duration<float> fsec = t2 - m_t1;
 121                         printf("Output %d: fps %f\n", m_connector->idx(), 100.0 / fsec.count());
 122                         m_t1 = t2;
 123                 }
 124
 125                 queue_next();
 126         }
 127
 128         void queue_next()
 129         {
 130                 auto crtc = m_crtc;
 131                 auto& card = crtc->card();
 132
 133                 auto fb = m_flipper.get_next();
 134                 Framebuffer* planefb = m_plane ? m_plane_flipper->get_next() : 0;
 135
 136                 if (card.has_atomic()) {
 137                         int r;
 138
 139                         AtomicReq req(card);
 140
 141                         req.add(m_crtc, "FB_ID", fb->id());
 142                         if (m_plane)
 143                                 req.add(m_plane, "FB_ID", planefb->id());
 144
 145                         r = req.test();
 146                         ASSERT(r == 0);
 147
 148                         r = req.commit(this);
 149                         ASSERT(r == 0);
 150                 } else {
 151                         int r = crtc->page_flip(*fb, this);
 152                         ASSERT(r == 0);
 153
 154                         if (m_plane) {
 155                                 r = m_crtc->set_plane(m_plane, *planefb,
 156                                                       0, 0, planefb->width(), planefb->height(),
 157                                                       0, 0, planefb->width(), planefb->height());
 158                                 ASSERT(r == 0);
 159                         }
 160                 }
 161         }
 162
 163 private:
 164         Connector* m_connector;
 165         Crtc* m_crtc;
 166         Videomode m_mode;
 167
 168         int m_frame_num;
 169         chrono::steady_clock::time_point m_t1;
 170
 171         Flipper m_flipper;
 172
 173         Plane* m_plane;
 174         Flipper* m_plane_flipper;
 175 };
 176
 177 int main()
 178 {
 179         Card card;
 180
 181         if (card.master() == false)
 182                 printf("Not DRM master, modeset may fail\n");
 183
 184         //card.print_short();
 185
 186         vector<OutputFlipHandler*> outputs;
 187
 188         for (auto pipe : card.get_connected_pipelines())
 189         {
 190                 auto conn = pipe.connector;
 191                 auto crtc = pipe.crtc;
 192                 auto mode = conn->get_default_mode();
 193
 194
 195                 Plane* plane = 0;
 196
 197                 for (Plane* p : crtc->get_possible_planes()) {
 198                         if (p->plane_type() == PlaneType::Overlay) {
 199                                 plane = p;
 200                                 break;
 201                         }
 202                 }
 203
 204                 OutputFlipHandler* output;
 205                 if (plane)
 206                         output = new OutputFlipHandler(conn, crtc, mode, plane, 500, 400);
 207                 else
 208                         output = new OutputFlipHandler(conn, crtc, mode);
 209                 outputs.push_back(output);
 210         }
 211
 212         for(auto out : outputs)
 213                 out->set_mode();
 214
 215         for(auto out : outputs)
 216                 out->start_flipping();
 217
 218         main_loop(card);
 219
 220         for(auto out : outputs)
 221                 delete out;
 222 }
 223
 224 static void main_loop(Card& card)
 225 {
 226         fd_set fds;
 227
 228         FD_ZERO(&fds);
 229
 230         int fd = card.fd();
 231
 232         printf("press enter to exit\n");
 233
 234         while (true) {
 235                 int r;
 236
 237                 FD_SET(0, &fds);
 238                 FD_SET(fd, &fds);
 239
 240                 r = select(fd + 1, &fds, NULL, NULL, NULL);
 241                 if (r < 0) {
 242                         fprintf(stderr, "select() failed with %d: %m\n", errno);
 243                         break;
 244                 } else if (FD_ISSET(0, &fds)) {
 245                         fprintf(stderr, "exit due to user-input\n");
 246                         break;
 247                 } else if (FD_ISSET(fd, &fds)) {
 248                         card.call_page_flip_handlers();
 249                 }
 250         }
 251 }