6bffeeed28
In order to reliably manage the reference count of the user data passed to page flip listeners - being the stage view - make the ownership of this data travel through the different objects that take responsibility of the next step. Initially this is the MetaKmsPageFlipListener that belongs to a MetaKmsUpdate. When a page flip is successfully queued, the ownership is transferred to a MetaKmsPageFlipClosure that is part of a MetaKmsPageFlipData. In the simple impl device, the MetaKmsPageFlipData is passed to drmModePageFlip(), then returned back via the DRM event. In the future atomic impl device, the MetaKmsPageFlipData is stored in a table, then retrieved when DRM event are handled. When the DRM events are handled, the page flip listener's interface callbacks are invoked, and after that, the user data is freed using the passed GDestroyNotify function, in the main context, the same as where the interface callbacks were called. When a page flip fails, the ownership is also transferred to a MetaKmsPageFlipClosure that is part of a MetaKmsPageFlipData. This page flip data will be passed to the main context via a callback, where it will discard the page flip, and free the user data using the provided GDestroyNotify. Note that this adds back a page flip listener type flag for telling the KMS implementation whether to actively discard a page flip via the interface, or just free the user data. Avoiding discarding via the interface is needed for the direct scanout case, where we immediately need to know the result in order to fall back to the composite pipeline if the direct scanout failed. We do in fact also need active discard via the interface paths, e.g. in the simple impl device when we're asynchronously retrying a page flip, so replace the ad-hoc discard paths in meta-renderer-native.c and replace them by not asking for no-discard page flip error handling. Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1488>
176 lines
6.6 KiB
C
176 lines
6.6 KiB
C
/*
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* Copyright (C) 2018 Red Hat
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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* 02111-1307, USA.
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*/
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#ifndef META_KMS_UPDATE_H
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#define META_KMS_UPDATE_H
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#include <glib-object.h>
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#include <glib.h>
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#include <stdint.h>
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#include <xf86drmMode.h>
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#include "backends/meta-monitor-transform.h"
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#include "backends/native/meta-drm-buffer.h"
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#include "backends/native/meta-kms-types.h"
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#include "meta/boxes.h"
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typedef enum _MetaKmsFeedbackResult
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{
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META_KMS_FEEDBACK_PASSED,
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META_KMS_FEEDBACK_FAILED,
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} MetaKmsFeedbackResult;
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typedef enum _MetaKmsAssignPlaneFlag
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{
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META_KMS_ASSIGN_PLANE_FLAG_NONE = 0,
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META_KMS_ASSIGN_PLANE_FLAG_FB_UNCHANGED = 1 << 0,
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META_KMS_ASSIGN_PLANE_FLAG_ALLOW_FAIL = 1 << 1,
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} MetaKmsAssignPlaneFlag;
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enum _MetaKmsPageFlipListenerFlag
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{
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META_KMS_PAGE_FLIP_LISTENER_FLAG_NONE = 0,
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META_KMS_PAGE_FLIP_LISTENER_FLAG_NO_DISCARD = 1 << 0,
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};
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struct _MetaKmsPageFlipListenerVtable
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{
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void (* flipped) (MetaKmsCrtc *crtc,
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unsigned int sequence,
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unsigned int tv_sec,
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unsigned int tv_usec,
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gpointer user_data);
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void (* ready) (MetaKmsCrtc *crtc,
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gpointer user_data);
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void (* mode_set_fallback) (MetaKmsCrtc *crtc,
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gpointer user_data);
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void (* discarded) (MetaKmsCrtc *crtc,
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gpointer user_data,
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const GError *error);
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};
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typedef int (* MetaKmsCustomPageFlipFunc) (gpointer custom_page_flip_data,
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gpointer user_data);
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typedef struct _MetaKmsPlaneFeedback
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{
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MetaKmsPlane *plane;
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MetaKmsCrtc *crtc;
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GError *error;
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} MetaKmsPlaneFeedback;
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typedef void (* MetaKmsResultListenerFunc) (const MetaKmsFeedback *feedback,
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gpointer user_data);
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void meta_kms_feedback_free (MetaKmsFeedback *feedback);
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MetaKmsFeedbackResult meta_kms_feedback_get_result (const MetaKmsFeedback *feedback);
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GList * meta_kms_feedback_get_failed_planes (const MetaKmsFeedback *feedback);
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const GError * meta_kms_feedback_get_error (const MetaKmsFeedback *feedback);
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MetaKmsUpdate * meta_kms_update_new (MetaKmsDevice *device);
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void meta_kms_update_free (MetaKmsUpdate *update);
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void meta_kms_update_set_underscanning (MetaKmsUpdate *update,
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MetaKmsConnector *connector,
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uint64_t hborder,
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uint64_t vborder);
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void meta_kms_update_unset_underscanning (MetaKmsUpdate *update,
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MetaKmsConnector *connector);
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void meta_kms_update_set_power_save (MetaKmsUpdate *update);
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void meta_kms_update_mode_set (MetaKmsUpdate *update,
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MetaKmsCrtc *crtc,
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GList *connectors,
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MetaKmsMode *mode);
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void meta_kms_update_set_crtc_gamma (MetaKmsUpdate *update,
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MetaKmsCrtc *crtc,
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int size,
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const uint16_t *red,
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const uint16_t *green,
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const uint16_t *blue);
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MetaKmsPlaneAssignment * meta_kms_update_assign_plane (MetaKmsUpdate *update,
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MetaKmsCrtc *crtc,
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MetaKmsPlane *plane,
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MetaDrmBuffer *buffer,
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MetaFixed16Rectangle src_rect,
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MetaRectangle dst_rect,
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MetaKmsAssignPlaneFlag flags);
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MetaKmsPlaneAssignment * meta_kms_update_unassign_plane (MetaKmsUpdate *update,
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MetaKmsCrtc *crtc,
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MetaKmsPlane *plane);
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void meta_kms_update_add_page_flip_listener (MetaKmsUpdate *update,
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MetaKmsCrtc *crtc,
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const MetaKmsPageFlipListenerVtable *vtable,
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MetaKmsPageFlipListenerFlag flags,
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gpointer user_data,
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GDestroyNotify destroy_notify);
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void meta_kms_update_set_custom_page_flip (MetaKmsUpdate *update,
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MetaKmsCustomPageFlipFunc func,
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gpointer user_data);
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void meta_kms_plane_assignment_set_cursor_hotspot (MetaKmsPlaneAssignment *plane_assignment,
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int x,
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int y);
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void meta_kms_update_add_result_listener (MetaKmsUpdate *update,
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MetaKmsResultListenerFunc func,
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gpointer user_data);
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static inline MetaFixed16
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meta_fixed_16_from_int (int16_t d)
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{
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return d * 65536;
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}
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static inline int16_t
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meta_fixed_16_to_int (MetaFixed16 fixed)
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{
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return fixed / 65536;
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}
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static inline MetaRectangle
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meta_fixed_16_rectangle_to_rectangle (MetaFixed16Rectangle fixed_rect)
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{
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return (MetaRectangle) {
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.x = meta_fixed_16_to_int (fixed_rect.x),
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.y = meta_fixed_16_to_int (fixed_rect.y),
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.width = meta_fixed_16_to_int (fixed_rect.width),
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.height = meta_fixed_16_to_int (fixed_rect.height),
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};
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}
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G_DEFINE_AUTOPTR_CLEANUP_FUNC (MetaKmsFeedback, meta_kms_feedback_free)
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G_DEFINE_AUTOPTR_CLEANUP_FUNC (MetaKmsUpdate, meta_kms_update_free)
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#endif /* META_KMS_UPDATE_H */
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