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gl: initialize temporary surface with size same as subsurface

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Rather than the operation extents which may be larger. It would be
beneficial to trim to the intersection instead and tweak the pattern
matrices - however this is the fallback path and so hopefully less
frequently trod!

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Henry (Yu) Song 2012-02-09 23:38:37 +00:00 • committed by Chris Wilson
parent 38bf7a6526
commit e809cea6d0
1 changed files with 3 additions and 1 deletions
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4
src/cairo-gl-operand.c
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@ -99,10 +99,12 @@ _cairo_gl_subsurface_clone_operand_init (cairo_gl_operand_t *operand,
if (unlikely (status))
return status;
/* XXX Trim surface to the sample area within the subsurface? */
surface = (cairo_gl_surface_t *)
_cairo_gl_surface_create_scratch (ctx,
sub->target->content,
extents->width, extents->height);
sub->extents.width,
sub->extents.height);
if (surface->base.status)
return _cairo_gl_context_release (ctx, surface->base.status);