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55cf1c1496
The transactional KMS API has been modelled after atomic KMS. Atomic KMS currently doesn't support forwarding cursor hotspot metadata, thus it was left out of the transactional KMS API having the user set the simply create a plane assigment with the cursor sprite assigned to a cursor plane using regular coordinates. This, however, proved to be inadequate for virtual machines using "seamless mouse mode" where they rely on the cursor position to correspond to the actual cursor position of the virtual machine, not the cursor plane. In effect, this caused cursor positions to look "shifted". Fix this by adding back the hotspot metadata, right now as a optional field to the plane assignment. In the legacy KMS implementation, this is translated into drmModeSetCursor2() just as before, while still falling back to drmModeSetCursor() with the plane coordinates, if either there was no hotspot set, or if drmModeSetCursor2() failed. Eventually, the atomic KMS API will learn about hotspots, but when adding our own atomic KMS backend to the transacitonal KMS API, we must until then still fall back to legacy KMS for virtual machines. https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1136
142 lines
5.1 KiB
C
142 lines
5.1 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-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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} MetaKmsAssignPlaneFlag;
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struct _MetaKmsPageFlipFeedback
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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 (* 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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void meta_kms_feedback_free (MetaKmsFeedback *feedback);
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MetaKmsFeedbackResult meta_kms_feedback_get_result (MetaKmsFeedback *feedback);
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GList * meta_kms_feedback_get_failed_planes (MetaKmsFeedback *feedback);
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const GError * meta_kms_feedback_get_error (MetaKmsFeedback *feedback);
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MetaKmsUpdate * meta_kms_update_new (void);
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void meta_kms_update_free (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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drmModeModeInfo *drm_mode);
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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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uint32_t fb_id,
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MetaFixed16Rectangle src_rect,
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MetaFixed16Rectangle 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_page_flip (MetaKmsUpdate *update,
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MetaKmsCrtc *crtc,
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const MetaKmsPageFlipFeedback *feedback,
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gpointer user_data);
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void meta_kms_update_custom_page_flip (MetaKmsUpdate *update,
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MetaKmsCrtc *crtc,
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const MetaKmsPageFlipFeedback *feedback,
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gpointer user_data,
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MetaKmsCustomPageFlipFunc custom_page_flip_func,
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gpointer custom_page_flip_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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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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