db: print slowest frame time
[android/external-libkmsxx.git] / tests / db.cpp
1 #include <cstdio>
2 #include <algorithm>
3 #include <chrono>
5 #include <xf86drm.h>
6 #include <xf86drmMode.h>
7 #include <drm_fourcc.h>
9 #include "kms++.h"
11 #include "test.h"
13 using namespace std;
14 using namespace kms;
16 static void main_loop(Card& card);
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         }
29         ~Flipper()
30         {
31                 delete m_fbs[0];
32                 delete m_fbs[1];
33         }
35         Framebuffer* get_next()
36         {
37                 m_current ^= 1;
39                 const int bar_width = 20;
40                 const int bar_speed = 8;
42                 auto fb = m_fbs[m_current];
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);
48                 draw_color_bar(*fb, old_xpos, new_xpos, bar_width);
50                 m_bar_xpos = new_xpos;
52                 return fb;
53         }
55 private:
56         DumbFramebuffer* m_fbs[2];
58         int m_current;
59         int m_bar_xpos;
60 };
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         }
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         }
81         ~OutputFlipHandler()
82         {
83                 if (m_plane_flipper)
84                         delete m_plane_flipper;
85         }
87         OutputFlipHandler(const OutputFlipHandler& other) = delete;
88         OutputFlipHandler& operator=(const OutputFlipHandler& other) = delete;
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);
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         }
106         void start_flipping()
107         {
108                 m_time_last = m_t1 = std::chrono::steady_clock::now();
109                 m_slowest_frame = std::chrono::duration<float>::min();
110                 m_frame_num = 0;
111                 queue_next();
112         }
114 private:
115         void handle_page_flip(uint32_t frame, double time)
116         {
117                 ++m_frame_num;
119                 auto now = std::chrono::steady_clock::now();
121                 std::chrono::duration<float> diff = now - m_time_last;
122                 if (diff > m_slowest_frame)
123                         m_slowest_frame = diff;
125                 if (m_frame_num  % 100 == 0) {
126                         std::chrono::duration<float> fsec = now - m_t1;
127                         printf("Output %d: fps %f, slowest %.2f ms\n",
128                                m_connector->idx(), 100.0 / fsec.count(),
129                                m_slowest_frame.count() * 1000);
130                         m_t1 = now;
131                         m_slowest_frame = std::chrono::duration<float>::min();
132                 }
134                 m_time_last = now;
136                 queue_next();
137         }
139         void queue_next()
140         {
141                 auto crtc = m_crtc;
142                 auto& card = crtc->card();
144                 auto fb = m_flipper.get_next();
145                 Framebuffer* planefb = m_plane ? m_plane_flipper->get_next() : 0;
147                 if (card.has_atomic()) {
148                         int r;
150                         AtomicReq req(card);
152                         req.add(m_crtc, "FB_ID", fb->id());
153                         if (m_plane)
154                                 req.add(m_plane, "FB_ID", planefb->id());
156                         r = req.test();
157                         ASSERT(r == 0);
159                         r = req.commit(this);
160                         ASSERT(r == 0);
161                 } else {
162                         int r = crtc->page_flip(*fb, this);
163                         ASSERT(r == 0);
165                         if (m_plane) {
166                                 r = m_crtc->set_plane(m_plane, *planefb,
167                                                       0, 0, planefb->width(), planefb->height(),
168                                                       0, 0, planefb->width(), planefb->height());
169                                 ASSERT(r == 0);
170                         }
171                 }
172         }
174 private:
175         Connector* m_connector;
176         Crtc* m_crtc;
177         Videomode m_mode;
179         int m_frame_num;
180         chrono::steady_clock::time_point m_t1;
181         chrono::steady_clock::time_point m_time_last;
182         chrono::duration<float> m_slowest_frame;
184         Flipper m_flipper;
186         Plane* m_plane;
187         Flipper* m_plane_flipper;
188 };
190 int main()
192         Card card;
194         if (card.master() == false)
195                 printf("Not DRM master, modeset may fail\n");
197         vector<OutputFlipHandler*> outputs;
199         for (auto pipe : card.get_connected_pipelines())
200         {
201                 auto conn = pipe.connector;
202                 auto crtc = pipe.crtc;
203                 auto mode = conn->get_default_mode();
206                 Plane* plane = 0;
207 #if 0 // disable the plane for now
208                 for (Plane* p : crtc->get_possible_planes()) {
209                         if (p->plane_type() == PlaneType::Overlay) {
210                                 plane = p;
211                                 break;
212                         }
213                 }
214 #endif
215                 OutputFlipHandler* output;
216                 if (plane)
217                         output = new OutputFlipHandler(conn, crtc, mode, plane, 500, 400);
218                 else
219                         output = new OutputFlipHandler(conn, crtc, mode);
220                 outputs.push_back(output);
221         }
223         for(auto out : outputs)
224                 out->set_mode();
226         for(auto out : outputs)
227                 out->start_flipping();
229         main_loop(card);
231         for(auto out : outputs)
232                 delete out;
235 static void main_loop(Card& card)
237         fd_set fds;
239         FD_ZERO(&fds);
241         int fd = card.fd();
243         printf("press enter to exit\n");
245         while (true) {
246                 int r;
248                 FD_SET(0, &fds);
249                 FD_SET(fd, &fds);
251                 r = select(fd + 1, &fds, NULL, NULL, NULL);
252                 if (r < 0) {
253                         fprintf(stderr, "select() failed with %d: %m\n", errno);
254                         break;
255                 } else if (FD_ISSET(0, &fds)) {
256                         fprintf(stderr, "exit due to user-input\n");
257                         break;
258                 } else if (FD_ISSET(fd, &fds)) {
259                         card.call_page_flip_handlers();
260                 }
261         }