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surface: add wlr_surface_state.viewport

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This field contains the viewport source and destination parameters. It's
intended to be updated by a third-party protocol, for instance
viewporter.
This commit is contained in:
Simon Ser 2020-03-31 15:18:49 +02:00 • committed by Drew DeVault
parent 315bf08733
commit eb22ae97b0
2 changed files with 95 additions and 9 deletions
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18
include/wlr/types/wlr_surface.h
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@ -14,6 +14,7 @@
#include <stdint.h>
#include <time.h>
#include <wayland-server-core.h>
#include <wlr/types/wlr_box.h>
#include <wlr/types/wlr_output.h>
enum wlr_surface_state_field {
@ -25,6 +26,7 @@ enum wlr_surface_state_field {
WLR_SURFACE_STATE_TRANSFORM = 1 << 5,
WLR_SURFACE_STATE_SCALE = 1 << 6,
WLR_SURFACE_STATE_FRAME_CALLBACK_LIST = 1 << 7,
WLR_SURFACE_STATE_VIEWPORT = 1 << 8,
};
struct wlr_surface_state {
@ -41,6 +43,21 @@ struct wlr_surface_state {
int width, height; // in surface-local coordinates
int buffer_width, buffer_height;
/**
* The viewport is applied after the surface transform and scale.
*
* If has_src is true, the surface content is cropped to the provided
* rectangle. If has_dst is true, the surface content is scaled to the
* provided rectangle.
*/
struct {
bool has_src, has_dst;
// In coordinates after scale/transform are applied, but before the
// destination rectangle is applied
struct wlr_fbox src;
int dst_width, dst_height; // in surface-local coordinates
} viewport;
struct wl_listener buffer_destroy;
};
@ -220,7 +237,6 @@ void wlr_surface_send_leave(struct wlr_surface *surface,
void wlr_surface_send_frame_done(struct wlr_surface *surface,
const struct timespec *when);
struct wlr_box;
/**
* Get the bounding box that contains the surface and all subsurfaces in
* surface coordinates.