diff options
Diffstat (limited to 'utils/omap-wbcap.cpp')
| -rw-r--r-- | utils/omap-wbcap.cpp | 411 |
1 files changed, 411 insertions, 0 deletions
diff --git a/utils/omap-wbcap.cpp b/utils/omap-wbcap.cpp new file mode 100644 index 0000000..8033869 --- /dev/null +++ b/utils/omap-wbcap.cpp @@ -0,0 +1,411 @@ +#include <cstdio> +#include <poll.h> +#include <unistd.h> +#include <algorithm> +#include <fstream> + +#include <kms++/kms++.h> +#include <kms++util/kms++util.h> +#include <kms++util/videodevice.h> + +#define CAMERA_BUF_QUEUE_SIZE 5 + +using namespace std; +using namespace kms; + +static vector<DumbFramebuffer*> s_fbs; +static vector<DumbFramebuffer*> s_free_fbs; +static vector<DumbFramebuffer*> s_wb_fbs; +static vector<DumbFramebuffer*> s_ready_fbs; + +class WBStreamer +{ +public: + WBStreamer(VideoStreamer* streamer, Crtc* crtc, PixelFormat pixfmt) + : m_capdev(*streamer) + { + Videomode m = crtc->mode(); + + m_capdev.set_port(crtc->idx()); + m_capdev.set_format(pixfmt, m.hdisplay, m.vdisplay / (m.interlace() ? 2 : 1)); + m_capdev.set_queue_size(s_fbs.size()); + + for (auto fb : s_free_fbs) { + m_capdev.queue(fb); + s_wb_fbs.push_back(fb); + } + + s_free_fbs.clear(); + } + + ~WBStreamer() + { + } + + WBStreamer(const WBStreamer& other) = delete; + WBStreamer& operator=(const WBStreamer& other) = delete; + + int fd() const { return m_capdev.fd(); } + + void start_streaming() + { + m_capdev.stream_on(); + } + + void stop_streaming() + { + m_capdev.stream_off(); + } + + DumbFramebuffer* Dequeue() + { + auto fb = m_capdev.dequeue(); + + auto iter = find(s_wb_fbs.begin(), s_wb_fbs.end(), fb); + s_wb_fbs.erase(iter); + + s_ready_fbs.insert(s_ready_fbs.begin(), fb); + + return fb; + } + + void Queue() + { + if (s_free_fbs.size() == 0) + return; + + auto fb = s_free_fbs.back(); + s_free_fbs.pop_back(); + + m_capdev.queue(fb); + + s_wb_fbs.insert(s_wb_fbs.begin(), fb); + } + +private: + VideoStreamer& m_capdev; +}; + +class WBFlipState : private PageFlipHandlerBase +{ +public: + WBFlipState(Card& card, Crtc* crtc, Plane* plane) + : m_card(card), m_crtc(crtc), m_plane(plane) + { + auto fb = s_ready_fbs.back(); + s_ready_fbs.pop_back(); + + AtomicReq req(m_card); + + req.add(m_plane, "CRTC_ID", m_crtc->id()); + req.add(m_plane, "FB_ID", fb->id()); + + req.add(m_plane, "CRTC_X", 0); + req.add(m_plane, "CRTC_Y", 0); + req.add(m_plane, "CRTC_W", min((uint32_t)m_crtc->mode().hdisplay, fb->width())); + req.add(m_plane, "CRTC_H", min((uint32_t)m_crtc->mode().vdisplay, fb->height())); + + req.add(m_plane, "SRC_X", 0); + req.add(m_plane, "SRC_Y", 0); + req.add(m_plane, "SRC_W", fb->width() << 16); + req.add(m_plane, "SRC_H", fb->height() << 16); + + int r = req.commit_sync(); + FAIL_IF(r, "initial plane setup failed"); + + m_current_fb = fb; + } + + void queue_next() + { + if (m_queued_fb) + return; + + if (s_ready_fbs.size() == 0) + return; + + auto fb = s_ready_fbs.back(); + s_ready_fbs.pop_back(); + + AtomicReq req(m_card); + req.add(m_plane, "FB_ID", fb->id()); + + int r = req.commit(this); + if (r) + EXIT("Flip commit failed: %d\n", r); + + m_queued_fb = fb; + } + +private: + void handle_page_flip(uint32_t frame, double time) + { + if (m_queued_fb) { + if (m_current_fb) + s_free_fbs.insert(s_free_fbs.begin(), m_current_fb); + + m_current_fb = m_queued_fb; + m_queued_fb = nullptr; + } + + queue_next(); + } + + Card& m_card; + Crtc* m_crtc; + Plane* m_plane; + + DumbFramebuffer* m_current_fb = nullptr; + DumbFramebuffer* m_queued_fb = nullptr; +}; + +class BarFlipState : private PageFlipHandlerBase +{ +public: + BarFlipState(Card& card, Crtc* crtc, Plane* plane, uint32_t width, uint32_t height) + : m_card(card), m_crtc(crtc), m_plane(plane) + { + for (unsigned i = 0; i < s_num_buffers; ++i) + m_fbs[i] = new DumbFramebuffer(card, width, height, PixelFormat::XRGB8888); + } + + ~BarFlipState() + { + for (unsigned i = 0; i < s_num_buffers; ++i) + delete m_fbs[i]; + } + + void start_flipping() + { + m_frame_num = 0; + queue_next(); + } + +private: + void handle_page_flip(uint32_t frame, double time) + { + m_frame_num++; + queue_next(); + } + + static unsigned get_bar_pos(DumbFramebuffer* fb, unsigned frame_num) + { + return (frame_num * bar_speed) % (fb->width() - bar_width + 1); + } + + void draw_bar(DumbFramebuffer* fb, unsigned frame_num) + { + int old_xpos = frame_num < s_num_buffers ? -1 : get_bar_pos(fb, frame_num - s_num_buffers); + int new_xpos = get_bar_pos(fb, frame_num); + + draw_color_bar(*fb, old_xpos, new_xpos, bar_width); + draw_text(*fb, fb->width() / 2, 0, to_string(frame_num), RGB(255, 255, 255)); + } + + void queue_next() + { + AtomicReq req(m_card); + + unsigned cur = m_frame_num % s_num_buffers; + + auto fb = m_fbs[cur]; + + draw_bar(fb, m_frame_num); + + req.add(m_plane, { + { "CRTC_ID", m_crtc->id() }, + { "FB_ID", fb->id() }, + + { "CRTC_X", 0 }, + { "CRTC_Y", 0 }, + { "CRTC_W", min((uint32_t)m_crtc->mode().hdisplay, fb->width()) }, + { "CRTC_H", min((uint32_t)m_crtc->mode().vdisplay, fb->height()) }, + + { "SRC_X", 0 }, + { "SRC_Y", 0 }, + { "SRC_W", fb->width() << 16 }, + { "SRC_H", fb->height() << 16 }, + }); + + int r = req.commit(this); + if (r) + EXIT("Flip commit failed: %d\n", r); + } + + static const unsigned s_num_buffers = 3; + + DumbFramebuffer* m_fbs[s_num_buffers]; + + Card& m_card; + Crtc* m_crtc; + Plane* m_plane; + + unsigned m_frame_num; + + static const unsigned bar_width = 20; + static const unsigned bar_speed = 8; +}; + +static const char* usage_str = + "Usage: wbcap [OPTIONS]\n\n" + "Options:\n" + " -s, --src=CONN Source connector\n" + " -d, --dst=CONN Destination connector\n" + " -m, --smode=MODE Source connector videomode\n" + " -M, --dmode=MODE Destination connector videomode\n" + " -f, --format=4CC Format\n" + " -w, --write Write captured frames to wbcap.raw file\n" + " -h, --help Print this help\n"; + +int main(int argc, char** argv) +{ + string src_conn_name; + string src_mode_name; + string dst_conn_name; + string dst_mode_name; + PixelFormat pixfmt = PixelFormat::XRGB8888; + bool write_file = false; + + OptionSet optionset = { + Option("s|src=", [&](string s) { + src_conn_name = s; + }), + Option("m|smode=", [&](string s) { + src_mode_name = s; + }), + Option("d|dst=", [&](string s) { + dst_conn_name = s; + }), + Option("M|dmode=", [&](string s) { + dst_mode_name = s; + }), + Option("f|format=", [&](string s) { + pixfmt = FourCCToPixelFormat(s); + }), + Option("w|write", [&]() { + write_file = true; + }), + Option("h|help", [&]() { + puts(usage_str); + exit(-1); + }), + }; + + optionset.parse(argc, argv); + + if (optionset.params().size() > 0) { + puts(usage_str); + exit(-1); + } + + if (src_conn_name.empty()) + EXIT("No source connector defined"); + + if (dst_conn_name.empty()) + EXIT("No destination connector defined"); + + VideoDevice vid("/dev/video11"); + + Card card; + ResourceManager resman(card); + + card.disable_all(); + + auto src_conn = resman.reserve_connector(src_conn_name); + auto src_crtc = resman.reserve_crtc(src_conn); + auto src_plane = resman.reserve_generic_plane(src_crtc, pixfmt); + FAIL_IF(!src_plane, "Plane not found"); + Videomode src_mode = src_mode_name.empty() ? src_conn->get_default_mode() : src_conn->get_mode(src_mode_name); + src_crtc->set_mode(src_conn, src_mode); + + auto dst_conn = resman.reserve_connector(dst_conn_name); + auto dst_crtc = resman.reserve_crtc(dst_conn); + auto dst_plane = resman.reserve_overlay_plane(dst_crtc, pixfmt); + FAIL_IF(!dst_plane, "Plane not found"); + Videomode dst_mode = dst_mode_name.empty() ? dst_conn->get_default_mode() : dst_conn->get_mode(dst_mode_name); + dst_crtc->set_mode(dst_conn, dst_mode); + + uint32_t src_width = src_mode.hdisplay; + uint32_t src_height = src_mode.vdisplay; + + uint32_t dst_width = src_mode.hdisplay; + uint32_t dst_height = src_mode.vdisplay; + if (src_mode.interlace()) + dst_height /= 2; + + printf("src %s, crtc %s\n", src_conn->fullname().c_str(), src_mode.to_string_short().c_str()); + + printf("dst %s, crtc %s\n", dst_conn->fullname().c_str(), dst_mode.to_string_short().c_str()); + + printf("src_fb %ux%u, dst_fb %ux%u\n", src_width, src_height, dst_width, dst_height); + + for (int i = 0; i < CAMERA_BUF_QUEUE_SIZE; ++i) { + auto fb = new DumbFramebuffer(card, dst_width, dst_height, pixfmt); + s_fbs.push_back(fb); + s_free_fbs.push_back(fb); + } + + // get one fb for initial setup + s_ready_fbs.push_back(s_free_fbs.back()); + s_free_fbs.pop_back(); + + // This draws a moving bar to SRC display + BarFlipState barflipper(card, src_crtc, src_plane, src_width, src_height); + barflipper.start_flipping(); + + // This shows the captured SRC frames on DST display + WBFlipState wbflipper(card, dst_crtc, dst_plane); + + WBStreamer wb(vid.get_capture_streamer(), src_crtc, pixfmt); + wb.start_streaming(); + + vector<pollfd> fds(3); + + fds[0].fd = 0; + fds[0].events = POLLIN; + fds[1].fd = wb.fd(); + fds[1].events = POLLIN; + fds[2].fd = card.fd(); + fds[2].events = POLLIN; + + uint32_t dst_frame_num = 0; + + const string filename = "wbcap.raw"; + unique_ptr<ofstream> os; + if (write_file) + os = unique_ptr<ofstream>(new ofstream(filename, ofstream::binary)); + + while (true) { + int r = poll(fds.data(), fds.size(), -1); + ASSERT(r > 0); + + if (fds[0].revents != 0) + break; + + if (fds[1].revents) { + fds[1].revents = 0; + + DumbFramebuffer* fb = wb.Dequeue(); + + if (write_file) { + printf("Writing frame %u to %s\n", dst_frame_num, filename.c_str()); + + for (unsigned i = 0; i < fb->num_planes(); ++i) + os->write((char*)fb->map(i), fb->size(i)); + + dst_frame_num++; + } + + wbflipper.queue_next(); + } + + if (fds[2].revents) { + fds[2].revents = 0; + + card.call_page_flip_handlers(); + wb.Queue(); + } + } + + printf("exiting...\n"); +} |