зеркало из https://github.com/mozilla/gecko-dev.git
60 строки
2.1 KiB
Diff
60 строки
2.1 KiB
Diff
From b79ea8a6cab8bd28aebecf6e1e8229d5ac017264 Mon Sep 17 00:00:00 2001
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From: Karl Tomlinson <karlt+@karlt.net>
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Date: Fri, 16 Jul 2010 23:46:25 +0000
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Subject: clip: consider all_clipped in _cairo_clip_get_extents
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If the gstate clip in _cairo_gstate_int_clip_extents() has all_clipped
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set (and path NULL), then it returns the gstate target extents instead of
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an empty rectangle. If the target is infinite, then it says the clip is
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unbounded.
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Fixes https://bugs.freedesktop.org/show_bug.cgi?id=29124
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Tested-by test/get-clip
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Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
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---
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diff --git a/src/cairo-clip.c b/src/cairo-clip.c
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index f6173c6..77d8214 100644
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--- a/src/cairo-clip.c
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+++ b/src/cairo-clip.c
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@@ -1264,9 +1264,14 @@ _cairo_clip_combine_with_surface (cairo_clip_t *clip,
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return CAIRO_STATUS_SUCCESS;
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}
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+static const cairo_rectangle_int_t _cairo_empty_rectangle_int = { 0, 0, 0, 0 };
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+
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const cairo_rectangle_int_t *
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_cairo_clip_get_extents (const cairo_clip_t *clip)
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{
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+ if (clip->all_clipped)
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+ return &_cairo_empty_rectangle_int;
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+
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if (clip->path == NULL)
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return NULL;
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diff --git a/test/get-clip.c b/test/get-clip.c
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index 9d6e796..f0477a1 100644
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--- a/test/get-clip.c
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+++ b/test/get-clip.c
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@@ -83,6 +83,8 @@ check_clip_extents (const cairo_test_context_t *ctx,
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cairo_clip_extents (cr, &ext_x1, &ext_y1, &ext_x2, &ext_y2);
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if (ext_x1 == x && ext_y1 == y && ext_x2 == x + width && ext_y2 == y + height)
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return 1;
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+ if (width == 0.0 && height == 0.0 && ext_x1 == ext_x2 && ext_y1 == ext_y2)
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+ return 1;
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cairo_test_log (ctx, "Error: %s; clip extents %f,%f,%f,%f should be %f,%f,%f,%f\n",
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message, ext_x1, ext_y1, ext_x2 - ext_x1, ext_y2 - ext_y1,
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x, y, width, height);
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@@ -138,7 +140,8 @@ preamble (cairo_test_context_t *ctx)
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cairo_save (cr);
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cairo_clip (cr);
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rectangle_list = cairo_copy_clip_rectangle_list (cr);
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- if (! check_count (ctx, phase, rectangle_list, 0))
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+ if (! check_count (ctx, phase, rectangle_list, 0) ||
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+ ! check_clip_extents (ctx, phase, cr, 0, 0, 0, 0))
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{
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goto FAIL;
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}
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--
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cgit v0.8.3-6-g21f6
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