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rendernode: Respect clip when drawing scale nodes

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Scale nodes can use large scale factors and we don't want to create
insanely huge Cairo surfaces.

A subsequent commit will add the texture-scale-magnify-10000x
test which fails without this fix.
This commit is contained in:
Benjamin Otte 2023-02-13 01:44:48 +01:00 committed by Matthias Clasen
parent 718b5d5fe7
commit 22ba6b1f33
1 changed files with 11 additions and 2 deletions
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13
gsk/gskrendernodeimpl.c
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@ -1635,10 +1635,19 @@ gsk_texture_scale_node_draw (GskRenderNode *node,
};
cairo_t *cr2;
cairo_surface_t *surface2;
graphene_rect_t clip_rect;
/* Make sure we draw the minimum region by using the clip */
gsk_cairo_rectangle (cr, &node->bounds);
cairo_clip (cr);
_graphene_rect_init_from_clip_extents (&clip_rect, cr);
if (clip_rect.size.width <= 0 || clip_rect.size.height <= 0)
return;
surface2 = cairo_image_surface_create (CAIRO_FORMAT_ARGB32,
(int) ceilf (node->bounds.size.width),
(int) ceilf (node->bounds.size.height));
(int) ceilf (clip_rect.size.width),
(int) ceilf (clip_rect.size.height));
cairo_surface_set_device_offset (surface2, -clip_rect.origin.x, -clip_rect.origin.y);
cr2 = cairo_create (surface2);
surface = gdk_texture_download_surface (self->texture);