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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.
101 lines
3.1 KiB
C
101 lines
3.1 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_DRMATOMIC_H
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#define MP_DRMATOMIC_H
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#include <stdlib.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 "common/msg.h"
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#include "drm_common.h"
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#define DRM_OPTS_PRIMARY_PLANE -1
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#define DRM_OPTS_OVERLAY_PLANE -2
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struct drm_atomic_plane_state {
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uint64_t fb_id;
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uint64_t crtc_id;
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uint64_t src_x;
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uint64_t src_y;
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uint64_t src_w;
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uint64_t src_h;
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uint64_t crtc_x;
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uint64_t crtc_y;
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uint64_t crtc_w;
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uint64_t crtc_h;
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uint64_t zpos;
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};
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// Used to store the restore state for VT switching and uninit
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struct drm_atomic_state {
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bool saved;
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struct {
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uint64_t crtc_id;
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} connector;
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struct {
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struct drm_mode mode;
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uint64_t active;
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uint64_t vrr_enabled;
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} crtc;
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struct drm_atomic_plane_state draw_plane;
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struct drm_atomic_plane_state drmprime_video_plane;
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};
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struct drm_object {
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int fd;
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uint32_t id;
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uint32_t type;
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drmModeObjectProperties *props;
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drmModePropertyRes **props_info;
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};
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struct drm_atomic_context {
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int fd;
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struct drm_object *crtc;
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struct drm_object *connector;
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struct drm_object *draw_plane;
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struct drm_object *drmprime_video_plane;
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drmModeAtomicReq *request;
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struct drm_atomic_state old_state;
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};
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int drm_object_create_properties(struct mp_log *log, int fd, struct drm_object *object);
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void drm_object_free_properties(struct drm_object *object);
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int drm_object_get_property(struct drm_object *object, char *name, uint64_t *value);
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int drm_object_set_property(drmModeAtomicReq *request, struct drm_object *object, char *name, uint64_t value);
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drmModePropertyBlobPtr drm_object_get_property_blob(struct drm_object *object, char *name);
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struct drm_object *drm_object_create(struct mp_log *log, int fd, uint32_t object_id, uint32_t type);
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void drm_object_free(struct drm_object *object);
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void drm_object_print_info(struct mp_log *log, struct drm_object *object);
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struct drm_atomic_context *drm_atomic_create_context(struct mp_log *log, int fd, int crtc_id, int connector_id,
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int draw_plane_idx, int drmprime_video_plane_idx);
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void drm_atomic_destroy_context(struct drm_atomic_context *ctx);
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bool drm_atomic_save_old_state(struct drm_atomic_context *ctx);
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bool drm_atomic_restore_old_state(drmModeAtomicReq *request, struct drm_atomic_context *ctx);
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bool drm_mode_ensure_blob(int fd, struct drm_mode *mode);
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bool drm_mode_destroy_blob(int fd, struct drm_mode *mode);
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#endif // MP_DRMATOMIC_H
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