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https://github.com/mpv-player/mpv.git
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d5cabf7348
Seems like some drivers only increment msc every other page flip when running in interlaced mode (I'm looking at you nouveau). I.e. it seems to be incremented at the frame rate, rather than the field rate. Obviously we can't work with this, so shame the driver and bail. On intel this isn't an issue, as msc is incremented at field rate there. This means presentation feedback won't work correctly in interlaced modes with those drivers, but who in their right mind uses an interlaced mode these days, anyway?
94 lines
2.9 KiB
C
94 lines
2.9 KiB
C
/*
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* This file is part of mpv.
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*
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* mpv is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* mpv is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with mpv. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef MP_VT_SWITCHER_H
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#define MP_VT_SWITCHER_H
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#include <stdbool.h>
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#include <xf86drm.h>
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#include <xf86drmMode.h>
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#include "options/m_option.h"
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#include "drm_atomic.h"
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#define DRM_OPTS_FORMAT_XRGB8888 0
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#define DRM_OPTS_FORMAT_XRGB2101010 1
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struct kms {
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struct mp_log *log;
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int fd;
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drmModeConnector *connector;
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drmModeEncoder *encoder;
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struct drm_mode mode;
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uint32_t crtc_id;
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int card_no;
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struct drm_atomic_context *atomic_context;
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};
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struct vt_switcher {
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int tty_fd;
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struct mp_log *log;
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void (*handlers[2])(void*);
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void *handler_data[2];
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};
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struct drm_opts {
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char *drm_connector_spec;
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char *drm_mode_spec;
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int drm_atomic;
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int drm_draw_plane;
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int drm_drmprime_video_plane;
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int drm_format;
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struct m_geometry drm_draw_surface_size;
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};
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struct drm_vsync_tuple {
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uint64_t ust;
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unsigned int msc;
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unsigned int sbc;
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};
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struct drm_pflip_cb_closure {
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struct drm_vsync_tuple *frame_vsync; // vsync tuple when the frame that just flipped was queued
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struct drm_vsync_tuple *vsync; // vsync tuple of the latest page flip. drm_pflip_cb updates this
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struct vo_vsync_info *vsync_info; // where the drm_pflip_cb routine writes its output
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bool *waiting_for_flip; // drm_pflip_cb writes false here before returning
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struct mp_log *log; // Needed to print error messages that shame bad drivers
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};
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bool vt_switcher_init(struct vt_switcher *s, struct mp_log *log);
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void vt_switcher_destroy(struct vt_switcher *s);
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void vt_switcher_poll(struct vt_switcher *s, int timeout_ms);
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void vt_switcher_interrupt_poll(struct vt_switcher *s);
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void vt_switcher_acquire(struct vt_switcher *s, void (*handler)(void*),
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void *user_data);
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void vt_switcher_release(struct vt_switcher *s, void (*handler)(void*),
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void *user_data);
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struct kms *kms_create(struct mp_log *log, const char *connector_spec,
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const char *mode_spec,
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int draw_plane, int drmprime_video_plane,
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bool use_atomic);
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void kms_destroy(struct kms *kms);
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double kms_get_display_fps(const struct kms *kms);
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// DRM Page Flip callback
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void drm_pflip_cb(int fd, unsigned int msc, unsigned int sec,
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unsigned int usec, void *data);
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#endif
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