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rendernode: Scale repeat offscreens properly

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Respect the matrix in use at time of encountering a repeat node so that
the offscreen uses roughly the same device pixel density as the target.

Fixes the handling of the clipped-repeat test.
This commit is contained in:
Benjamin Otte 2023-06-05 05:29:41 +02:00
parent c322ab34c7
commit bba324ce30
1 changed files with 9 additions and 3 deletions
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12
gsk/gskrendernodeimpl.c
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@ -3956,13 +3956,19 @@ gsk_repeat_node_draw (GskRenderNode *node,
cairo_pattern_t *pattern;
cairo_surface_t *surface;
cairo_t *surface_cr;
double scale_x, scale_y;
double scale_x, scale_y, width, height;
cairo_matrix_t matrix;
cairo_get_matrix (cr, &matrix);
width = ceil (self->child_bounds.size.width * (ABS (matrix.xx) + ABS (matrix.yx)));
height = ceil (self->child_bounds.size.height * (ABS (matrix.xy) + ABS (matrix.yy)));
surface = cairo_surface_create_similar (cairo_get_target (cr),
CAIRO_CONTENT_COLOR_ALPHA,
ceilf (self->child_bounds.size.width),
ceilf (self->child_bounds.size.height));
width, height);
cairo_surface_get_device_scale (surface, &scale_x, &scale_y);
scale_x *= width / self->child_bounds.size.width;
scale_y *= height / self->child_bounds.size.height;
cairo_surface_set_device_scale (surface, scale_x, scale_y);
cairo_surface_set_device_offset (surface,
- self->child_bounds.origin.x * scale_x,
- self->child_bounds.origin.y * scale_y);