isa/mutter
1
0
Fork 0
mirror of https://github.com/brl/mutter.git synced 2024-11-21 23:50:41 -05:00
Code Issues Packages Projects Releases Wiki Activity

monitor-manager/kms: Move scale calculation to MetaMonitor

Browse Source 
The scale calculation doesn't really have anything to do with KMS, and
eventually we'll want to have mutter calculate the monitor scale for
non-KMS backends too, so move the scale calculation to MetaMonitor.

https://bugzilla.gnome.org/show_bug.cgi?id=777732
This commit is contained in:
Jonas Ådahl 2017-04-21 17:28:22 +08:00
parent 0bc312a54b
commit 3b097c7e77
3 changed files with 93 additions and 80 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

89
src/backends/meta-monitor.c
View File

@ -25,6 +25,7 @@
#include "backends/meta-backend-private.h"
#include "backends/meta-monitor-manager-private.h"
#include "backends/meta-settings-private.h"
typedef struct _MetaMonitorMode
{
@ -976,6 +977,94 @@ meta_monitor_calculate_crtc_pos (MetaMonitor *monitor,
out_y);
}
/* The minimum resolution at which we turn on a window-scale of 2 */
#define HIDPI_LIMIT 192
/*
* The minimum screen height at which we turn on a window-scale of 2;
* below this there just isn't enough vertical real estate for GNOME
* apps to work, and it's better to just be tiny
*/
#define HIDPI_MIN_HEIGHT 1200
/* From http://en.wikipedia.org/wiki/4K_resolution#Resolutions_of_common_formats */
#define SMALLEST_4K_WIDTH 3656
static int
calculate_scale (MetaMonitor *monitor,
MetaMonitorMode *monitor_mode)
{
int resolution_width, resolution_height;
int width_mm, height_mm;
int scale;
scale = 1;
meta_monitor_mode_get_resolution (monitor_mode,
&resolution_width,
&resolution_height);
if (resolution_height < HIDPI_MIN_HEIGHT)
goto out;
/* 4K TV */
switch (meta_monitor_get_connector_type (monitor))
{
case META_CONNECTOR_TYPE_HDMIA:
case META_CONNECTOR_TYPE_HDMIB:
if (resolution_width >= SMALLEST_4K_WIDTH)
goto out;
break;
default:
break;
}
meta_monitor_get_physical_dimensions (monitor, &width_mm, &height_mm);
/*
* Somebody encoded the aspect ratio (16/9 or 16/10) instead of the physical
* size.
*/
if ((width_mm == 160 && height_mm == 90) ||
(width_mm == 160 && height_mm == 100) ||
(width_mm == 16 && height_mm == 9) ||
(width_mm == 16 && height_mm == 10))
goto out;
if (width_mm > 0 && height_mm > 0)
{
double dpi_x, dpi_y;
dpi_x = (double) resolution_width / (width_mm / 25.4);
dpi_y = (double) resolution_height / (height_mm / 25.4);
/*
* We don't completely trust these values so both must be high, and never
* pick higher ratio than 2 automatically.
*/
if (dpi_x > HIDPI_LIMIT && dpi_y > HIDPI_LIMIT)
scale = 2;
}
out:
return scale;
}
int
meta_monitor_calculate_mode_scale (MetaMonitor *monitor,
MetaMonitorMode *monitor_mode)
{
MetaBackend *backend = meta_get_backend ();
MetaSettings *settings = meta_backend_get_settings (backend);
int global_scaling_factor;
if (meta_settings_get_global_scaling_factor (settings,
&global_scaling_factor))
return global_scaling_factor;
return calculate_scale (monitor, monitor_mode);
}
MetaMonitorModeSpec *
meta_monitor_mode_get_spec (MetaMonitorMode *monitor_mode)
{

3
src/backends/meta-monitor.h
View File

@ -156,6 +156,9 @@ void meta_monitor_calculate_crtc_pos (MetaMonitor *monitor,
int *out_x,
int *out_y);
int meta_monitor_calculate_mode_scale (MetaMonitor *monitor,
MetaMonitorMode *monitor_mode);
MetaMonitorModeSpec * meta_monitor_mode_get_spec (MetaMonitorMode *monitor_mode);
void meta_monitor_mode_get_resolution (MetaMonitorMode *monitor_mode,

81
src/backends/native/meta-monitor-manager-kms.c
View File

@ -28,7 +28,6 @@
#include "meta-monitor-config-manager.h"
#include "meta-backend-private.h"
#include "meta-renderer-native.h"
#include "backends/meta-input-settings-private.h"
#include <string.h>
#include <stdlib.h>
@ -1829,90 +1828,12 @@ meta_monitor_manager_kms_is_transform_handled (MetaMonitorManager *manager,
return FALSE;
}
/* The minimum resolution at which we turn on a window-scale of 2 */
#define HIDPI_LIMIT 192
/* The minimum screen height at which we turn on a window-scale of 2;
* below this there just isn't enough vertical real estate for GNOME
* apps to work, and it's better to just be tiny */
#define HIDPI_MIN_HEIGHT 1200
/* From http://en.wikipedia.org/wiki/4K_resolution#Resolutions_of_common_formats */
#define SMALLEST_4K_WIDTH 3656
static int
compute_scale (MetaMonitor *monitor,
MetaMonitorMode *monitor_mode)
{
int resolution_width, resolution_height;
int width_mm, height_mm;
int scale;
scale = 1;
meta_monitor_mode_get_resolution (monitor_mode,
&resolution_width,
&resolution_height);
if (resolution_height < HIDPI_MIN_HEIGHT)
goto out;
/* 4K TV */
switch (meta_monitor_get_connector_type (monitor))
{
case META_CONNECTOR_TYPE_HDMIA:
case META_CONNECTOR_TYPE_HDMIB:
if (resolution_width >= SMALLEST_4K_WIDTH)
goto out;
break;
default:
break;
}
meta_monitor_get_physical_dimensions (monitor, &width_mm, &height_mm);
/*
* Somebody encoded the aspect ratio (16/9 or 16/10) instead of the physical
* size.
*/
if ((width_mm == 160 && height_mm == 90) ||
(width_mm == 160 && height_mm == 100) ||
(width_mm == 16 && height_mm == 9) ||
(width_mm == 16 && height_mm == 10))
goto out;
if (width_mm > 0 && height_mm > 0)
{
double dpi_x, dpi_y;
dpi_x = (double) resolution_width / (width_mm / 25.4);
dpi_y = (double) resolution_height / (height_mm / 25.4);
/*
* We don't completely trust these values so both must be high, and never
* pick higher ratio than 2 automatically.
*/
if (dpi_x > HIDPI_LIMIT && dpi_y > HIDPI_LIMIT)
scale = 2;
}
out:
return scale;
}
static int
meta_monitor_manager_kms_calculate_monitor_mode_scale (MetaMonitorManager *manager,
MetaMonitor *monitor,
MetaMonitorMode *monitor_mode)
{
MetaBackend *backend = meta_get_backend ();
MetaSettings *settings = meta_backend_get_settings (backend);
int global_scale;
if (meta_settings_get_global_scaling_factor (settings, &global_scale))
return global_scale;
else
return compute_scale (monitor, monitor_mode);
return meta_monitor_calculate_mode_scale (monitor, monitor_mode);
}
static void