From 506fa7c682a59558333c27b79dd8a6adbfd3978a Mon Sep 17 00:00:00 2001 From: Tomi Valkeinen Date: Sat, 11 Jun 2016 23:41:11 +0300 Subject: utils: add wbcap --- utils/CMakeLists.txt | 3 + utils/wbcap.cpp | 362 +++++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 365 insertions(+) create mode 100644 utils/wbcap.cpp diff --git a/utils/CMakeLists.txt b/utils/CMakeLists.txt index 27e4bec..ece8c67 100644 --- a/utils/CMakeLists.txt +++ b/utils/CMakeLists.txt @@ -18,3 +18,6 @@ target_link_libraries(kmscapture kms++ kms++util ${LIBDRM_LIBRARIES}) add_executable (kmsblank kmsblank.cpp) target_link_libraries(kmsblank kms++ kms++util ${LIBDRM_LIBRARIES}) + +add_executable (wbcap wbcap.cpp) +target_link_libraries(wbcap kms++ kms++util ${LIBDRM_LIBRARIES}) diff --git a/utils/wbcap.cpp b/utils/wbcap.cpp new file mode 100644 index 0000000..f4f2b71 --- /dev/null +++ b/utils/wbcap.cpp @@ -0,0 +1,362 @@ +#include +#include +#include +#include + +#include +#include +#include + +#define CAMERA_BUF_QUEUE_SIZE 5 + +using namespace std; +using namespace kms; + +static vector s_fbs; +static vector s_free_fbs; +static vector s_wb_fbs; +static vector s_ready_fbs; + +class WBStreamer +{ +public: + WBStreamer(VideoStreamer* streamer, Crtc* crtc, uint32_t width, uint32_t height, PixelFormat pixfmt) + : m_capdev(*streamer) + { + m_capdev.set_port(crtc->idx()); + m_capdev.set_format(pixfmt, width, height); + 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(); + } + + void 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); + } + + 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) + { + } + + void setup(uint32_t x, uint32_t y, uint32_t width, uint32_t height) + { + 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", x); + req.add(m_plane, "CRTC_Y", y); + req.add(m_plane, "CRTC_W", width); + req.add(m_plane, "CRTC_H", 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) + : m_card(card), m_crtc(crtc) + { + m_plane = m_crtc->get_primary_plane(); + + uint32_t w = m_crtc->mode().hdisplay; + uint32_t h = m_crtc->mode().vdisplay; + + for (unsigned i = 0; i < s_num_buffers; ++i) + m_fbs[i] = new DumbFramebuffer(card, w, h, 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, { + { "FB_ID", fb->id() }, + }); + + 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" + " -f, --format=4CC Format" + " -h, --help Print this help\n" + ; + +int main(int argc, char** argv) +{ + string src_conn_name = "unknown"; + string dst_conn_name = "hdmi"; + PixelFormat pixfmt = PixelFormat::XRGB8888; + + OptionSet optionset = { + Option("s|src=", [&](string s) + { + src_conn_name = s; + }), + Option("d|dst=", [&](string s) + { + dst_conn_name = s; + }), + Option("f|format=", [&](string s) + { + pixfmt = FourCCToPixelFormat(s); + }), + Option("h|help", [&]() + { + puts(usage_str); + exit(-1); + }), + }; + + optionset.parse(argc, argv); + + if (optionset.params().size() > 0) { + puts(usage_str); + exit(-1); + } + + VideoDevice vid("/dev/video11"); + + Card card; + ResourceManager resman(card); + + auto src_conn = resman.reserve_connector(src_conn_name); + auto src_crtc = resman.reserve_crtc(src_conn); + + uint32_t src_width = src_crtc->mode().hdisplay; + uint32_t src_height = src_crtc->mode().vdisplay; + + printf("src %s, crtc %ux%u\n", src_conn->fullname().c_str(), src_width, src_height); + + 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"); + + uint32_t dst_width = min((uint32_t)dst_crtc->mode().hdisplay, src_width); + uint32_t dst_height = min((uint32_t)dst_crtc->mode().vdisplay, src_height); + + printf("dst %s, crtc %ux%u, plane %ux%u\n", dst_conn->fullname().c_str(), + dst_crtc->mode().hdisplay, dst_crtc->mode().vdisplay, + dst_width, dst_height); + + for (int i = 0; i < CAMERA_BUF_QUEUE_SIZE; ++i) { + auto fb = new DumbFramebuffer(card, src_width, src_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); + barflipper.start_flipping(); + + // This shows the captures SRC frames on DST display + WBFlipState wbflipper(card, dst_crtc, dst_plane); + wbflipper.setup(0, 0, dst_width, dst_height); + + WBStreamer wb(vid.get_capture_streamer(), src_crtc, src_width, src_height, pixfmt); + wb.start_streaming(); + + vector 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; + + 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; + + wb.Dequeue(); + wbflipper.queue_next(); + } + + if (fds[2].revents) { + fds[2].revents = 0; + + card.call_page_flip_handlers(); + wb.Queue(); + } + } + + printf("exiting...\n"); +} -- cgit v1.2.3