brl/mutter
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Add support for rudimentary fractional scaling

Browse Source 
When the logical layout mode is used, allow configuring the scaling to
be non-integer. Supported scales are so far hard coded to include at
most 1, 1.5 and 2, and scales that doesn't result in non-fractional
logical monitor sizes are discarded.

Wayland outputs are set to have scale ceil(actual_scale) meaning well
behaving Wayland clients will provide buffers with buffer scale 2, thus
being scaled down to the fractional scale.

https://bugzilla.gnome.org/show_bug.cgi?id=765011
This commit is contained in:
Jonas Ådahl 2017-05-25 17:20:59 +08:00
parent b64c69e4bc
commit 10b0351a59
12 changed files with 126 additions and 59 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
src/backends/meta-monitor-config-manager.c
View File

@ -943,13 +943,16 @@ meta_verify_monitor_config (MetaMonitorConfig *monitor_config,
gboolean
meta_verify_logical_monitor_config (MetaLogicalMonitorConfig *logical_monitor_config,
MetaLogicalMonitorLayoutMode layout_mode,
MetaMonitorManager *monitor_manager,
GError **error)
{
GList *l;
int expected_mode_width = 0;
int expected_mode_height = 0;
if (logical_monitor_config->scale < 1.0)
if (!meta_monitor_manager_is_scale_supported (monitor_manager,
layout_mode,
logical_monitor_config->scale))
{
g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
"Invalid logical monitor config scale %g",

1
src/backends/meta-monitor-config-manager.h
View File

@ -117,6 +117,7 @@ gboolean meta_verify_monitor_config (MetaMonitorConfig *monitor_config,
gboolean meta_verify_logical_monitor_config (MetaLogicalMonitorConfig *logical_monitor_config,
MetaLogicalMonitorLayoutMode layout_mode,
MetaMonitorManager *monitor_manager,
GError **error);
gboolean meta_verify_monitors_config (MetaMonitorsConfig *config,

9
src/backends/meta-monitor-config-store.c
View File

@ -630,6 +630,7 @@ handle_end_element (GMarkupParseContext *context,
if (!meta_verify_logical_monitor_config (logical_monitor_config,
layout_mode,
store->monitor_manager,
error))
return;
}
@ -1069,13 +1070,17 @@ static void
append_logical_monitor_xml (GString *buffer,
MetaLogicalMonitorConfig *logical_monitor_config)
{
char scale_str[G_ASCII_DTOSTR_BUF_SIZE];
g_string_append (buffer, " <logicalmonitor>\n");
g_string_append_printf (buffer, " <x>%d</x>\n",
logical_monitor_config->layout.x);
g_string_append_printf (buffer, " <y>%d</y>\n",
logical_monitor_config->layout.y);
g_string_append_printf (buffer, " <scale>%g</scale>\n",
logical_monitor_config->scale);
g_ascii_dtostr (scale_str, G_ASCII_DTOSTR_BUF_SIZE,
logical_monitor_config->scale);
g_string_append_printf (buffer, " <scale>%s</scale>\n",
scale_str);
if (logical_monitor_config->is_primary)
g_string_append (buffer, " <primary>yes</primary>\n");
if (logical_monitor_config->is_presentation)

46
src/backends/meta-monitor-manager-dummy.c
View File

@ -40,7 +40,13 @@
#define MAX_CRTCS (MAX_MONITORS * 2)
#define MAX_MODES (MAX_MONITORS * 4)
static float supported_scales_dummy[] = {
static float supported_scales_dummy_logical[] = {
1.0,
1.5,
2.0
};
static float supported_scales_dummy_physical[] = {
1.0,
2.0
};
@ -242,20 +248,6 @@ meta_output_dummy_notify_destroy (MetaOutput *output)
g_clear_pointer (&output->driver_private, g_free);
}
static gboolean
is_scale_supported (float scale)
{
unsigned int i;
for (i = 0; i < G_N_ELEMENTS (supported_scales_dummy); i++)
{
if (scale == supported_scales_dummy[i])
return TRUE;
}
return FALSE;
}
static void
meta_monitor_manager_dummy_read_current (MetaMonitorManager *manager)
{
@ -328,7 +320,9 @@ meta_monitor_manager_dummy_read_current (MetaMonitorManager *manager)
for (i = 0; i < num_monitors && scales_str_list[i]; i++)
{
float scale = g_ascii_strtod (scales_str_list[i], NULL);
if (is_scale_supported (scale))
if (meta_monitor_manager_is_scale_supported (manager,
manager->layout_mode,
scale))
monitor_scales[i] = scale;
else
meta_warning ("Invalid dummy monitor scale\n");
@ -621,12 +615,22 @@ meta_monitor_manager_dummy_calculate_monitor_mode_scale (MetaMonitorManager *man
}
static void
meta_monitor_manager_dummy_get_supported_scales (MetaMonitorManager *manager,
float **scales,
int *n_scales)
meta_monitor_manager_dummy_get_supported_scales (MetaMonitorManager *manager,
MetaLogicalMonitorLayoutMode layout_mode,
float **scales,
int *n_scales)
{
*scales = supported_scales_dummy;
*n_scales = G_N_ELEMENTS (supported_scales_dummy);
switch (layout_mode)
{
case META_LOGICAL_MONITOR_LAYOUT_MODE_LOGICAL:
*scales = supported_scales_dummy_logical;
*n_scales = G_N_ELEMENTS (supported_scales_dummy_logical);
break;
case META_LOGICAL_MONITOR_LAYOUT_MODE_PHYSICAL:
*scales = supported_scales_dummy_physical;
*n_scales = G_N_ELEMENTS (supported_scales_dummy_physical);
break;
}
}
static gboolean

11
src/backends/meta-monitor-manager-private.h
View File

@ -394,9 +394,10 @@ struct _MetaMonitorManagerClass
MetaMonitor *,
MetaMonitorMode *);
void (*get_supported_scales) (MetaMonitorManager *,
float **,
int *);
void (*get_supported_scales) (MetaMonitorManager *,
MetaLogicalMonitorLayoutMode ,
float **,
int *);
MetaMonitorManagerCapability (*get_capabilities) (MetaMonitorManager *);
@ -508,6 +509,10 @@ float meta_monitor_manager_calculate_monitor_mode_scale (MetaMonito
MetaMonitor *monitor,
MetaMonitorMode *monitor_mode);
gboolean meta_monitor_manager_is_scale_supported (MetaMonitorManager *manager,
MetaLogicalMonitorLayoutMode layout_mode,
float scale);
MetaMonitorManagerCapability
meta_monitor_manager_get_capabilities (MetaMonitorManager *manager);

23
src/backends/meta-monitor-manager.c
View File

@ -407,14 +407,15 @@ meta_monitor_manager_calculate_monitor_mode_scale (MetaMonitorManager *manager,
}
static void
meta_monitor_manager_get_supported_scales (MetaMonitorManager *manager,
float **scales,
int *n_scales)
meta_monitor_manager_get_supported_scales (MetaMonitorManager *manager,
MetaLogicalMonitorLayoutMode layout_mode,
float **scales,
int *n_scales)
{
MetaMonitorManagerClass *manager_class =
META_MONITOR_MANAGER_GET_CLASS (manager);
manager_class->get_supported_scales (manager, scales, n_scales);
manager_class->get_supported_scales (manager, layout_mode, scales, n_scales);
}
MetaMonitorManagerCapability
@ -1633,6 +1634,7 @@ meta_monitor_manager_handle_get_current_state (MetaDBusDisplayConfig *skeleton,
g_variant_builder_init (&supported_scales_builder, G_VARIANT_TYPE ("ad"));
meta_monitor_manager_get_supported_scales (manager,
manager->layout_mode,
&supported_scales,
&n_supported_scales);
for (i = 0; i < n_supported_scales; i++)
@ -1703,15 +1705,17 @@ meta_monitor_manager_handle_get_current_state (MetaDBusDisplayConfig *skeleton,
#undef LOGICAL_MONITOR_FORMAT
#undef LOGICAL_MONITORS_FORMAT
static gboolean
meta_monitor_manager_is_scale_supported (MetaMonitorManager *manager,
float scale)
gboolean
meta_monitor_manager_is_scale_supported (MetaMonitorManager *manager,
MetaLogicalMonitorLayoutMode layout_mode,
float scale)
{
float *supported_scales;
int n_supported_scales;
int i;
meta_monitor_manager_get_supported_scales (manager,
layout_mode,
&supported_scales,
&n_supported_scales);
for (i = 0; i < n_supported_scales; i++)
@ -1736,7 +1740,9 @@ meta_monitor_manager_is_config_applicable (MetaMonitorManager *manager,
float scale = logical_monitor_config->scale;
GList *k;
if (!meta_monitor_manager_is_scale_supported (manager, scale))
if (!meta_monitor_manager_is_scale_supported (manager,
config->layout_mode,
scale))
{
g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
"Scale not supported by backend");
@ -1982,6 +1988,7 @@ create_logical_monitor_config_from_variant (MetaMonitorManager *manager
if (!meta_verify_logical_monitor_config (logical_monitor_config,
layout_mode,
manager,
error))
{
meta_logical_monitor_config_free (logical_monitor_config);

28
src/backends/native/meta-monitor-manager-kms.c
View File

@ -52,7 +52,13 @@
#define ALL_TRANSFORMS_MASK ((1 << ALL_TRANSFORMS) - 1)
#define SYNC_TOLERANCE 0.01 /* 1 percent */
static float supported_scales_kms[] = {
static float supported_scales_kms_logical[] = {
1.0,
1.5,
2.0
};
static float supported_scales_kms_physical[] = {
1.0,
2.0
};
@ -1847,12 +1853,22 @@ meta_monitor_manager_kms_calculate_monitor_mode_scale (MetaMonitorManager *manag
}
static void
meta_monitor_manager_kms_get_supported_scales (MetaMonitorManager *manager,
float **scales,
int *n_scales)
meta_monitor_manager_kms_get_supported_scales (MetaMonitorManager *manager,
MetaLogicalMonitorLayoutMode layout_mode,
float **scales,
int *n_scales)
{
*scales = supported_scales_kms;
*n_scales = G_N_ELEMENTS (supported_scales_kms);
switch (layout_mode)
{
case META_LOGICAL_MONITOR_LAYOUT_MODE_LOGICAL:
*scales = supported_scales_kms_logical;
*n_scales = G_N_ELEMENTS (supported_scales_kms_logical);
break;
case META_LOGICAL_MONITOR_LAYOUT_MODE_PHYSICAL:
*scales = supported_scales_kms_physical;
*n_scales = G_N_ELEMENTS (supported_scales_kms_physical);
break;
}
}
static MetaMonitorManagerCapability

7
src/backends/x11/meta-monitor-manager-xrandr.c
View File

@ -1800,9 +1800,10 @@ meta_monitor_manager_xrandr_calculate_monitor_mode_scale (MetaMonitorManager *ma
}
static void
meta_monitor_manager_xrandr_get_supported_scales (MetaMonitorManager *manager,
float **scales,
int *n_scales)
meta_monitor_manager_xrandr_get_supported_scales (MetaMonitorManager *manager,
MetaLogicalMonitorLayoutMode layout_mode,
float **scales,
int *n_scales)
{
*scales = supported_scales_xrandr;
*n_scales = G_N_ELEMENTS (supported_scales_xrandr);

28
src/tests/meta-monitor-manager-test.c
View File

@ -24,7 +24,13 @@
#include "backends/meta-backend-private.h"
#include "backends/meta-monitor-config-manager.h"
static float supported_scales_test[] = {
static float supported_scales_test_logical[] = {
1.0,
1.5,
2.0
};
static float supported_scales_test_physical[] = {
1.0,
2.0
};
@ -415,12 +421,22 @@ meta_monitor_manager_test_calculate_monitor_mode_scale (MetaMonitorManager *mana
}
static void
meta_monitor_manager_test_get_supported_scales (MetaMonitorManager *manager,
float **scales,
int *n_scales)
meta_monitor_manager_test_get_supported_scales (MetaMonitorManager *manager,
MetaLogicalMonitorLayoutMode layout_mode,
float **scales,
int *n_scales)
{
*scales = supported_scales_test;
*n_scales = G_N_ELEMENTS (supported_scales_test);
switch (layout_mode)
{
case META_LOGICAL_MONITOR_LAYOUT_MODE_LOGICAL:
*scales = supported_scales_test_logical;
*n_scales = G_N_ELEMENTS (supported_scales_test_logical);
break;
case META_LOGICAL_MONITOR_LAYOUT_MODE_PHYSICAL:
*scales = supported_scales_test_physical;
*n_scales = G_N_ELEMENTS (supported_scales_test_physical);
break;
}
}
static gboolean

8
src/tests/monitor-store-unit-tests.c
View File

@ -51,7 +51,7 @@ typedef struct _MonitorTestCaseMonitor
typedef struct _MonitorTestCaseLogicalMonitor
{
MetaRectangle layout;
int scale;
float scale;
MetaMonitorTransform transform;
gboolean is_primary;
gboolean is_presentation;
@ -141,9 +141,9 @@ check_monitor_configuration (MetaMonitorConfigStore *config_store,
g_assert (meta_rectangle_equal (&logical_monitor_config->layout,
&config_expect->logical_monitors[i].layout));
g_assert_cmpint (logical_monitor_config->scale,
==,
config_expect->logical_monitors[i].scale);
g_assert_cmpfloat (logical_monitor_config->scale,
==,
config_expect->logical_monitors[i].scale);
g_assert_cmpint (logical_monitor_config->transform,
==,
config_expect->logical_monitors[i].transform);

6
src/tests/monitor-unit-tests.c
View File

@ -437,9 +437,9 @@ check_logical_monitor (MonitorTestCase *test_case,
g_assert_cmpint (logical_monitor->rect.height,
==,
test_logical_monitor->layout.height);
g_assert_cmpint (logical_monitor->scale,
==,
test_logical_monitor->scale);
g_assert_cmpfloat (logical_monitor->scale,
==,
test_logical_monitor->scale);
g_assert_cmpuint (logical_monitor->transform,
==,
test_logical_monitor->transform);

13
src/wayland/meta-wayland-outputs.c
View File

@ -111,6 +111,15 @@ calculate_suitable_subpixel_order (MetaLogicalMonitor *logical_monitor)
return cogl_subpixel_order_to_wl_output_subpixel (subpixel_order);
}
static int
calculate_wayland_output_scale (MetaLogicalMonitor *logical_monitor)
{
float scale;
scale = meta_logical_monitor_get_scale (logical_monitor);
return ceilf (scale);
}
static void
send_output_events (struct wl_resource *resource,
MetaWaylandOutput *wayland_output,
@ -205,7 +214,7 @@ send_output_events (struct wl_resource *resource,
{
int scale;
scale = (int) meta_logical_monitor_get_scale (logical_monitor);
scale = calculate_wayland_output_scale (logical_monitor);
if (need_all_events ||
old_scale != scale)
{
@ -273,7 +282,7 @@ meta_wayland_output_set_logical_monitor (MetaWaylandOutput *wayland_output,
if (current_mode == preferred_mode)
wayland_output->mode_flags |= WL_OUTPUT_MODE_PREFERRED;
wayland_output->scale = (int) meta_logical_monitor_get_scale (logical_monitor);
wayland_output->scale = calculate_wayland_output_scale (logical_monitor);
wayland_output->refresh_rate = meta_monitor_mode_get_refresh_rate (current_mode);
}