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monitor-manager-dummy: Add way to emulate tiled monitors

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By setting the environment variable MUTTER_DEBUG_TILED_DUMMY_MONITORS
to "1", the dummy MetaMonitorManager backend used when running mutter
nested will create tiled monitors instead of single-output/CRTC
monitors. This makes it possible to test tiled monitor configuration.

https://bugzilla.gnome.org/show_bug.cgi?id=779745
This commit is contained in:
Jonas Ådahl 2017-03-08 14:14:16 +08:00
parent 3ace913aed
commit 4f386e5131
1 changed files with 105 additions and 1 deletions
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106
src/backends/meta-monitor-manager-dummy.c
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@ -116,6 +116,94 @@ append_monitor (GArray *modes,
g_array_append_val (outputs, output);
}
static void
append_tiled_monitor (GArray *modes,
GArray *crtcs,
GArray *outputs,
int scale)
{
MetaCrtcMode modes_decl[] = {
{
.width = 800,
.height = 600,
.refresh_rate = 60.0
},
{
.width = 512,
.height = 768,
.refresh_rate = 60.0
}
};
MetaCrtc crtcs_decl[] = {
{
.all_transforms = ALL_TRANSFORMS,
},
{
.all_transforms = ALL_TRANSFORMS,
},
};
MetaOutput output;
unsigned int i;
uint32_t tile_group_id;
for (i = 0; i < G_N_ELEMENTS (modes_decl); i++)
modes_decl[i].mode_id = modes->len + i;
g_array_append_vals (modes, modes_decl, G_N_ELEMENTS (modes_decl));
for (i = 0; i < G_N_ELEMENTS (crtcs_decl); i++)
crtcs_decl[i].crtc_id = crtcs->len + i + 1;
g_array_append_vals (crtcs, crtcs_decl, G_N_ELEMENTS (crtcs_decl));
tile_group_id = outputs->len + 1;
for (i = 0; i < G_N_ELEMENTS (crtcs_decl); i++)
{
MetaCrtcMode *preferred_mode;
unsigned int j;
preferred_mode = &array_last (modes, MetaCrtcMode),
output = (MetaOutput) {
.winsys_id = outputs->len + 1,
.name = g_strdup_printf ("LVDS%d", outputs->len + 1),
.vendor = g_strdup ("MetaProducts Inc."),
.product = g_strdup ("MetaMonitor"),
.serial = g_strdup_printf ("0xC0FFEE-%d", outputs->len + 1),
.suggested_x = -1,
.suggested_y = -1,
.width_mm = 222,
.height_mm = 125,
.subpixel_order = COGL_SUBPIXEL_ORDER_UNKNOWN,
.preferred_mode = preferred_mode,
.n_possible_clones = 0,
.backlight = -1,
.connector_type = META_CONNECTOR_TYPE_LVDS,
.tile_info = (MetaTileInfo) {
.group_id = tile_group_id,
.max_h_tiles = G_N_ELEMENTS (crtcs_decl),
.max_v_tiles = 1,
.loc_h_tile = i,
.loc_v_tile = 0,
.tile_w = preferred_mode->width,
.tile_h = preferred_mode->height
},
.scale = scale
};
output.modes = g_new0 (MetaCrtcMode *, G_N_ELEMENTS (modes_decl));
for (j = 0; j < G_N_ELEMENTS (modes_decl); j++)
output.modes[j] = &g_array_index (modes, MetaCrtcMode,
modes->len - (j + 1));
output.n_modes = G_N_ELEMENTS (modes_decl);
output.possible_crtcs = g_new0 (MetaCrtc *, G_N_ELEMENTS (crtcs_decl));
for (j = 0; j < G_N_ELEMENTS (crtcs_decl); j++)
output.possible_crtcs[j] = &g_array_index (crtcs, MetaCrtc,
crtcs->len - (j + 1));
output.n_possible_crtcs = G_N_ELEMENTS (crtcs_decl);
g_array_append_val (outputs, output);
}
}
static void
meta_monitor_manager_dummy_read_current (MetaMonitorManager *manager)
{
@ -123,6 +211,8 @@ meta_monitor_manager_dummy_read_current (MetaMonitorManager *manager)
int *monitor_scales = NULL;
const char *num_monitors_str;
const char *monitor_scales_str;
const char *tiled_monitors_str;
gboolean tiled_monitors;
unsigned int i;
GArray *outputs;
GArray *crtcs;
@ -140,11 +230,17 @@ meta_monitor_manager_dummy_read_current (MetaMonitorManager *manager)
*
* A comma separated list that specifies the scales of the dummy monitors.
*
* MUTTER_DEBUG_TILED_DUMMY_MONITORS
*
* If set to "1" the dummy monitors will emulate being tiled, i.e. each have a
* unique tile group id, made up of multiple outputs and CRTCs.
*
* For example the following configuration results in two monitors, where the
* first one has the monitor scale 1, and the other the monitor scale 2.
*
* MUTTER_DEBUG_NUM_DUMMY_MONITORS=2
* MUTTER_DEBUG_DUMMY_MONITOR_SCALES=1,2
* MUTTER_DEBUG_TILED_DUMMY_MONITORS=1
*/
num_monitors_str = getenv ("MUTTER_DEBUG_NUM_DUMMY_MONITORS");
if (num_monitors_str)
@ -188,6 +284,9 @@ meta_monitor_manager_dummy_read_current (MetaMonitorManager *manager)
g_strfreev (scales_str_list);
}
tiled_monitors_str = g_getenv ("MUTTER_DEBUG_TILED_DUMMY_MONITORS");
tiled_monitors = g_strcmp0 (tiled_monitors_str, "1") == 0;
manager->max_screen_width = 65535;
manager->max_screen_height = 65535;
@ -196,7 +295,12 @@ meta_monitor_manager_dummy_read_current (MetaMonitorManager *manager)
outputs = g_array_sized_new (FALSE, TRUE, sizeof (MetaOutput), MAX_OUTPUTS);
for (i = 0; i < num_monitors; i++)
append_monitor (modes, crtcs, outputs, monitor_scales[i]);
{
if (tiled_monitors)
append_tiled_monitor (modes, crtcs, outputs, monitor_scales[i]);
else
append_monitor (modes, crtcs, outputs, monitor_scales[i]);
}
manager->modes = (MetaCrtcMode *) modes->data;
manager->n_modes = modes->len;