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monitor-manager: Derive logical monitor position from top left CRTC

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Derive the logical monitor position not by looking at the main output
(the (0, 0) tile), but the one that is placed on the top-left corner.
This might be the non-main output on certain transformations.

https://bugzilla.gnome.org/show_bug.cgi?id=777732
This commit is contained in:
Jonas Ådahl 2017-03-21 16:38:45 +08:00
parent d804ecbd95
commit af4017de49
1 changed files with 18 additions and 4 deletions
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22
src/backends/meta-monitor-manager.c
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@ -158,11 +158,25 @@ static void
derive_monitor_layout (MetaMonitor *monitor,
MetaRectangle *layout)
{
MetaOutput *main_output;
GList *outputs;
GList *l;
int x = INT_MAX;
int y = INT_MAX;
main_output = meta_monitor_get_main_output (monitor);
layout->x = main_output->crtc->rect.x;
layout->y = main_output->crtc->rect.y;
outputs = meta_monitor_get_outputs (monitor);
for (l = outputs; l; l = l->next)
{
MetaOutput *output = l->data;
if (!output->crtc)
continue;
x = MIN (x, output->crtc->rect.x);
y = MIN (y, output->crtc->rect.y);
}
layout->x = x;
layout->y = y;
meta_monitor_derive_dimensions (monitor, &layout->width, &layout->height);
}