mutter/src/backends/native/meta-kms-update.h
Jonas Ådahl 6e3ecadb79 backends/native: Fall back to compositing if direct scanout failed
Even when a direct client buffer has a compatible format, stride and
modifier for direct scanout, drmModePageFlip() may still fail sometimes.

From testing, it has been observed that it may seemingly randomly fail
with ENOSPC, where all subsequent attempts later on the same CRTC
failing with EBUSY.

Handle this by falling back to flipping after having composited a full
frame again.

Closes: https://gitlab.gnome.org/GNOME/mutter/-/issues/1410
2020-09-17 12:17:35 +00:00

149 lines
5.4 KiB
C

/*
* Copyright (C) 2018 Red Hat
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
* 02111-1307, USA.
*/
#ifndef META_KMS_UPDATE_H
#define META_KMS_UPDATE_H
#include <glib-object.h>
#include <glib.h>
#include <stdint.h>
#include <xf86drmMode.h>
#include "backends/meta-monitor-transform.h"
#include "backends/native/meta-kms-types.h"
#include "meta/boxes.h"
typedef enum _MetaKmsFeedbackResult
{
META_KMS_FEEDBACK_PASSED,
META_KMS_FEEDBACK_FAILED,
} MetaKmsFeedbackResult;
typedef enum _MetaKmsAssignPlaneFlag
{
META_KMS_ASSIGN_PLANE_FLAG_NONE = 0,
META_KMS_ASSIGN_PLANE_FLAG_FB_UNCHANGED = 1 << 0,
} MetaKmsAssignPlaneFlag;
typedef enum _MetaKmsPageFlipFlag
{
META_KMS_PAGE_FLIP_FLAG_NONE = 0,
META_KMS_PAGE_FLIP_FLAG_NO_DISCARD_FEEDBACK = 1 << 0,
} MetaKmsPageFlipFlag;
struct _MetaKmsPageFlipFeedback
{
void (* flipped) (MetaKmsCrtc *crtc,
unsigned int sequence,
unsigned int tv_sec,
unsigned int tv_usec,
gpointer user_data);
void (* mode_set_fallback) (MetaKmsCrtc *crtc,
gpointer user_data);
void (* discarded) (MetaKmsCrtc *crtc,
gpointer user_data,
const GError *error);
};
typedef int (* MetaKmsCustomPageFlipFunc) (gpointer custom_page_flip_data,
gpointer user_data);
typedef struct _MetaKmsPlaneFeedback
{
MetaKmsPlane *plane;
MetaKmsCrtc *crtc;
GError *error;
} MetaKmsPlaneFeedback;
void meta_kms_feedback_free (MetaKmsFeedback *feedback);
MetaKmsFeedbackResult meta_kms_feedback_get_result (MetaKmsFeedback *feedback);
GList * meta_kms_feedback_get_failed_planes (MetaKmsFeedback *feedback);
const GError * meta_kms_feedback_get_error (MetaKmsFeedback *feedback);
MetaKmsUpdate * meta_kms_update_new (void);
void meta_kms_update_free (MetaKmsUpdate *update);
void meta_kms_update_mode_set (MetaKmsUpdate *update,
MetaKmsCrtc *crtc,
GList *connectors,
const drmModeModeInfo *drm_mode);
MetaKmsPlaneAssignment * meta_kms_update_assign_plane (MetaKmsUpdate *update,
MetaKmsCrtc *crtc,
MetaKmsPlane *plane,
uint32_t fb_id,
MetaFixed16Rectangle src_rect,
MetaFixed16Rectangle dst_rect,
MetaKmsAssignPlaneFlag flags);
MetaKmsPlaneAssignment * meta_kms_update_unassign_plane (MetaKmsUpdate *update,
MetaKmsCrtc *crtc,
MetaKmsPlane *plane);
void meta_kms_update_page_flip (MetaKmsUpdate *update,
MetaKmsCrtc *crtc,
const MetaKmsPageFlipFeedback *feedback,
MetaKmsPageFlipFlag flags,
gpointer user_data);
void meta_kms_update_custom_page_flip (MetaKmsUpdate *update,
MetaKmsCrtc *crtc,
const MetaKmsPageFlipFeedback *feedback,
gpointer user_data,
MetaKmsCustomPageFlipFunc custom_page_flip_func,
gpointer custom_page_flip_user_data);
void meta_kms_plane_assignment_set_cursor_hotspot (MetaKmsPlaneAssignment *plane_assignment,
int x,
int y);
static inline MetaFixed16
meta_fixed_16_from_int (int16_t d)
{
return d * 65536;
}
static inline int16_t
meta_fixed_16_to_int (MetaFixed16 fixed)
{
return fixed / 65536;
}
static inline MetaRectangle
meta_fixed_16_rectangle_to_rectangle (MetaFixed16Rectangle fixed_rect)
{
return (MetaRectangle) {
.x = meta_fixed_16_to_int (fixed_rect.x),
.y = meta_fixed_16_to_int (fixed_rect.y),
.width = meta_fixed_16_to_int (fixed_rect.width),
.height = meta_fixed_16_to_int (fixed_rect.height),
};
}
G_DEFINE_AUTOPTR_CLEANUP_FUNC (MetaKmsFeedback, meta_kms_feedback_free)
G_DEFINE_AUTOPTR_CLEANUP_FUNC (MetaKmsUpdate, meta_kms_update_free)
#endif /* META_KMS_UPDATE_H */