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xcb: Prefer RenderFillRectangles to perform the deferred clear

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Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson 2011-01-23 13:29:51 +00:00
parent bef8b28300
commit 6f4318869c
1 changed files with 16 additions and 6 deletions
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22
src/cairo-xcb-surface-render.c
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@ -2282,17 +2282,27 @@ _cairo_xcb_surface_clear (cairo_xcb_surface_t *dst)
if (unlikely (status))
return status;
gc = _cairo_xcb_screen_get_gc (dst->screen, dst->drawable, dst->depth);
rect.x = rect.y = 0;
rect.width = dst->width;
rect.height = dst->height;
_cairo_xcb_connection_poly_fill_rectangle (dst->connection,
dst->drawable, gc,
1, &rect);
if (dst->flags & CAIRO_XCB_RENDER_HAS_COMPOSITE) {
xcb_render_color_t transparent = { 0 };
_cairo_xcb_screen_put_gc (dst->screen, dst->depth, gc);
_cairo_xcb_connection_render_fill_rectangles (dst->connection,
XCB_RENDER_PICT_OP_CLEAR,
dst->picture,
transparent,
1, &rect);
} else {
gc = _cairo_xcb_screen_get_gc (dst->screen, dst->drawable, dst->depth);
_cairo_xcb_connection_poly_fill_rectangle (dst->connection,
dst->drawable, gc,
1, &rect);
_cairo_xcb_screen_put_gc (dst->screen, dst->depth, gc);
}
_cairo_xcb_connection_release (dst->connection);