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https://github.com/mpv-player/mpv
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92a6f2d687
A longstanding pain point of the drm VOs is the relative lack of state sharing. While drm_common does provide some sharing, it's far less than other platforms like x11 or wayland. What we do here is essentially copy them by creating a new vo_drm_state struct and using it in vo_drm and context_drm_egl. Much of the functionality that was essentially duplicated in both VOs/contexts is now reduced simple functions in drm_common. The usage of the term 'kms' was also mostly eliminated since this is libdrm nowadays from a userspace perspective.
125 lines
3.3 KiB
C
125 lines
3.3 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 "vo.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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#define DRM_OPTS_FORMAT_XBGR8888 2
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#define DRM_OPTS_FORMAT_XBGR2101010 3
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struct framebuffer {
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int fd;
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uint32_t width;
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uint32_t height;
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uint32_t stride;
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uint32_t size;
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uint32_t handle;
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uint8_t *map;
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uint32_t id;
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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_mode {
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drmModeModeInfo mode;
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uint32_t blob_id;
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};
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struct drm_opts {
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char *device_path;
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char *connector_spec;
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char *mode_spec;
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int drm_atomic;
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int draw_plane;
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int drmprime_video_plane;
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int drm_format;
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struct m_geometry draw_surface_size;
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int vrr_enabled;
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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 vo_drm_state {
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drmModeConnector *connector;
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drmModeEncoder *encoder;
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drmEventContext ev;
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struct drm_atomic_context *atomic_context;
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struct drm_mode mode;
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struct drm_opts *opts;
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struct drm_vsync_tuple vsync;
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struct framebuffer *fb;
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struct mp_log *log;
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struct vo *vo;
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struct vt_switcher vt_switcher;
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struct vo_vsync_info vsync_info;
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bool active;
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bool paused;
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bool still;
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bool vt_switcher_active;
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bool waiting_for_flip;
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char *card_path;
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int card_no;
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int fd;
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uint32_t crtc_id;
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uint32_t height;
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uint32_t width;
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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 vo_drm_init(struct vo *vo);
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int vo_drm_control(struct vo *vo, int *events, int request, void *arg);
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double vo_drm_get_display_fps(struct vo_drm_state *drm);
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void vo_drm_get_vsync(struct vo *vo, struct vo_vsync_info *info);
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void vo_drm_set_monitor_par(struct vo *vo);
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void vo_drm_uninit(struct vo *vo);
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void vo_drm_wait_events(struct vo *vo, int64_t until_time_us);
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void vo_drm_wait_on_flip(struct vo_drm_state *drm);
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void vo_drm_wakeup(struct vo *vo);
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bool vo_drm_acquire_crtc(struct vo_drm_state *drm);
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void vo_drm_release_crtc(struct vo_drm_state *drm);
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#endif
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