pyrite-dev/milsko
pyrite-dev/milsko
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snapshot previous buffer so that we don't have ghosting anymore on rotate (this also makes resizing A Bit better)
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IoIxD 2026-09-21 16:51:46 -07:00
commit 58027c095f
2 changed files with 24 additions and 0 deletions
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2
include/Mw/LowLevel/Wayland.h
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@ -428,6 +428,8 @@ struct _MwLLWayland {
MwBool do_cascading_draw;
int cascading_child_num;
cairo_surface_t* snapshot;
MwBool dispatching_resize;
struct _MwLLWaylandShmBuffer framebuffer;

22
src/backend/wayland/wayland.c
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@ -939,6 +939,13 @@ static void draw_children(MwLL handle) {
cairo_reset_clip(handle->wayland.cairo.front_cairo_back);
if(handle->wayland.snapshot) {
cairo_set_operator(handle->wayland.cairo.front_cairo_back, CAIRO_OPERATOR_SOURCE);
cairo_set_source_surface(handle->wayland.cairo.front_cairo_back, handle->wayland.snapshot, 0, 0);
cairo_paint(handle->wayland.cairo.front_cairo_back);
cairo_set_operator(handle->wayland.cairo.front_cairo_back, CAIRO_OPERATOR_OVER);
}
MwLLWaylandChildrenIterate(handle, draw_child);
if(handle->wayland.configured) MwLLWaylandBufferUpdate(handle, &handle->wayland.framebuffer);
@ -1299,6 +1306,21 @@ static void MwLLEndDrawImpl(MwLL handle) {
}
root->wayland.do_cascading_draw = MwTRUE;
if(handle->wayland.snapshot) {
cairo_surface_destroy(handle->wayland.snapshot);
handle->wayland.snapshot = NULL;
}
if(handle->wayland.ww > 0 && handle->wayland.wh > 0) {
cairo_t* snap_cr;
handle->wayland.snapshot = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, handle->wayland.ww, handle->wayland.wh);
snap_cr = cairo_create(handle->wayland.snapshot);
cairo_set_operator(snap_cr, CAIRO_OPERATOR_SOURCE);
cairo_set_source_surface(snap_cr, handle->wayland.cairo.front_cs_back, 0, 0);
cairo_paint(snap_cr);
cairo_destroy(snap_cr);
}
if(handle->wayland.configured) {
if(handle->wayland.type == MwLL_WAYLAND_TOPLEVEL) {
MwLLWaylandBufferUpdate(handle, &handle->wayland.backbuffer);