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xwayland: Introduce output scale 

Add a scale factor to the Xwayland output and take the scale into
account when computing the screen size.

Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Reviewed-By: Kenny Levinsen <kl@kl.wtf>
Acked-by: Peter Hutterer <peter.hutterer@who-t.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1197>
This commit is contained in:
Olivier Fourdan 2023-11-27 13:39:26 +01:00
parent 8c54f90673
commit 6a09cd2d20
2 changed files with 15 additions and 1 deletions
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12
hw/xwayland/xwayland-output.c
View File

@ -891,6 +891,7 @@ xwl_output_create(struct xwl_screen *xwl_screen, uint32_t id,
xwl_output->server_output_id = id;
wl_output_add_listener(xwl_output->output, &output_listener, xwl_output);
xwl_output->xscale = 1.0;
xwl_output->xwl_screen = xwl_screen;
@ -1141,6 +1142,12 @@ mode_sort(const void *left, const void *right)
return (*mode_b)->mode.width - (*mode_a)->mode.width;
}
void
xwl_output_set_xscale(struct xwl_output *xwl_output, double xscale)
{
xwl_output->xscale = xscale;
}
Bool
xwl_randr_add_modes_fixed(struct xwl_output *xwl_output,
int current_width, int current_height)
@ -1198,7 +1205,9 @@ xwl_output_set_mode_fixed(struct xwl_output *xwl_output, RRModePtr mode)
xwl_output->mode_width = mode->mode.width;
xwl_output->mode_height = mode->mode.height;
update_screen_size(xwl_screen, mode->mode.width, mode->mode.height);
update_screen_size(xwl_screen,
round((double) mode->mode.width * xwl_output->xscale),
round((double) mode->mode.height * xwl_output->xscale));
RRCrtcNotify(xwl_output->randr_crtc, mode, 0, 0, RR_Rotate_0,
NULL, 1, &xwl_output->randr_output);
@ -1275,6 +1284,7 @@ xwl_screen_init_randr_fixed(struct xwl_screen *xwl_screen)
xwl_output->xwl_screen = xwl_screen;
xwl_screen->fixed_output = xwl_output;
xwl_output->xscale = 1.0;
return TRUE;

4
hw/xwayland/xwayland-output.h
View File

@ -55,6 +55,7 @@ struct xwl_output {
uint32_t server_output_id;
int32_t x, y, width, height, refresh;
int32_t mode_width, mode_height;
double xscale; /* Effective scale, can be fractional */
Rotation rotation;
Bool wl_output_done;
Bool xdg_output_done;
@ -78,6 +79,9 @@ Bool xwl_screen_init_output(struct xwl_screen *xwl_screen);
Bool xwl_screen_init_randr_fixed(struct xwl_screen *xwl_screen);
void
xwl_output_set_xscale(struct xwl_output *xwl_output, double xscale);
Bool
xwl_randr_add_modes_fixed(struct xwl_output *xwl_output,
int current_width, int current_height);