abac217617
We'll need to use the MetaKmsMode later on for state keeping. Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1488>
152 lines
3.9 KiB
C
152 lines
3.9 KiB
C
/*
|
|
* Copyright (C) 2020 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.
|
|
*/
|
|
|
|
#include "config.h"
|
|
|
|
#include "backends/native/meta-kms-mode-private.h"
|
|
|
|
#include "backends/native/meta-kms-impl-device.h"
|
|
|
|
struct _MetaKmsMode
|
|
{
|
|
MetaKmsImplDevice *impl_device;
|
|
MetaKmsModeFlag flags;
|
|
drmModeModeInfo drm_mode;
|
|
uint32_t blob_id;
|
|
};
|
|
|
|
uint32_t
|
|
meta_kms_mode_ensure_blob_id (MetaKmsMode *mode,
|
|
GError **error)
|
|
{
|
|
int fd;
|
|
int ret;
|
|
|
|
fd = meta_kms_impl_device_get_fd (mode->impl_device);
|
|
|
|
ret = drmModeCreatePropertyBlob (fd,
|
|
&mode->drm_mode,
|
|
sizeof (mode->drm_mode),
|
|
&mode->blob_id);
|
|
if (ret < 0)
|
|
{
|
|
g_set_error (error, G_IO_ERROR, g_io_error_from_errno (-ret),
|
|
"drmModeCreatePropertyBlob: %s",
|
|
g_strerror (-ret));
|
|
return 0;
|
|
}
|
|
|
|
return mode->blob_id;
|
|
}
|
|
|
|
const char *
|
|
meta_kms_mode_get_name (MetaKmsMode *mode)
|
|
{
|
|
return mode->drm_mode.name;
|
|
}
|
|
|
|
MetaKmsModeFlag
|
|
meta_kms_mode_get_flags (MetaKmsMode *mode)
|
|
{
|
|
return mode->flags;
|
|
}
|
|
|
|
const drmModeModeInfo *
|
|
meta_kms_mode_get_drm_mode (MetaKmsMode *mode)
|
|
{
|
|
return &mode->drm_mode;
|
|
}
|
|
|
|
static gboolean
|
|
meta_drm_mode_equal (const drmModeModeInfo *one,
|
|
const drmModeModeInfo *two)
|
|
{
|
|
return (one->clock == two->clock &&
|
|
one->hdisplay == two->hdisplay &&
|
|
one->hsync_start == two->hsync_start &&
|
|
one->hsync_end == two->hsync_end &&
|
|
one->htotal == two->htotal &&
|
|
one->hskew == two->hskew &&
|
|
one->vdisplay == two->vdisplay &&
|
|
one->vsync_start == two->vsync_start &&
|
|
one->vsync_end == two->vsync_end &&
|
|
one->vtotal == two->vtotal &&
|
|
one->vscan == two->vscan &&
|
|
one->vrefresh == two->vrefresh &&
|
|
one->flags == two->flags &&
|
|
one->type == two->type &&
|
|
strncmp (one->name, two->name, DRM_DISPLAY_MODE_LEN) == 0);
|
|
}
|
|
|
|
gboolean
|
|
meta_kms_mode_equal (MetaKmsMode *mode,
|
|
MetaKmsMode *other_mode)
|
|
{
|
|
return meta_drm_mode_equal (&mode->drm_mode, &other_mode->drm_mode);
|
|
}
|
|
|
|
unsigned int
|
|
meta_kms_mode_hash (MetaKmsMode *mode)
|
|
{
|
|
const drmModeModeInfo *drm_mode = &mode->drm_mode;
|
|
unsigned int hash = 0;
|
|
|
|
/*
|
|
* We don't include the name in the hash because it's generally
|
|
* derived from the other fields (hdisplay, vdisplay and flags)
|
|
*/
|
|
|
|
hash ^= drm_mode->clock;
|
|
hash ^= drm_mode->hdisplay ^ drm_mode->hsync_start ^ drm_mode->hsync_end;
|
|
hash ^= drm_mode->vdisplay ^ drm_mode->vsync_start ^ drm_mode->vsync_end;
|
|
hash ^= drm_mode->vrefresh;
|
|
hash ^= drm_mode->flags ^ drm_mode->type;
|
|
|
|
return hash;
|
|
}
|
|
|
|
void
|
|
meta_kms_mode_free (MetaKmsMode *mode)
|
|
{
|
|
if (mode->blob_id)
|
|
{
|
|
int fd;
|
|
|
|
fd = meta_kms_impl_device_get_fd (mode->impl_device);
|
|
|
|
drmModeDestroyPropertyBlob (fd, mode->blob_id);
|
|
}
|
|
|
|
g_free (mode);
|
|
}
|
|
|
|
MetaKmsMode *
|
|
meta_kms_mode_new (MetaKmsImplDevice *impl_device,
|
|
const drmModeModeInfo *drm_mode,
|
|
MetaKmsModeFlag flags)
|
|
{
|
|
MetaKmsMode *mode;
|
|
|
|
mode = g_new0 (MetaKmsMode, 1);
|
|
mode->impl_device = impl_device;
|
|
mode->flags = flags;
|
|
mode->drm_mode = *drm_mode;
|
|
|
|
return mode;
|
|
}
|