From e4b3f84d4c3f23ad6e33bb53dcc3a88f480977c0 Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Sun, 24 Jul 2011 13:05:24 +0100 Subject: [PATCH] test: Add clip-intersect Exercises a bug in the unbounded drawing of an empty polygon... Signed-off-by: Chris Wilson --- test/Makefile.refs | 1 + test/Makefile.sources | 1 + test/clip-intersect.c | 94 ++++++++++++++++++++++++++++++++++++ test/clip-intersect.ref.png | Bin 0 -> 201 bytes 4 files changed, 96 insertions(+) create mode 100644 test/clip-intersect.c create mode 100644 test/clip-intersect.ref.png diff --git a/test/Makefile.refs b/test/Makefile.refs index f0e131d0e..1c05deaca 100644 --- a/test/Makefile.refs +++ b/test/Makefile.refs @@ -152,6 +152,7 @@ REFERENCE_IMAGES = \ clip-image.image16.ref.png \ clip-image.ps.ref.png \ clip-image.ref.png \ + clip-intersect.ref.png \ clip-nesting.pdf.argb32.ref.png \ clip-nesting.ps.argb32.ref.png \ clip-nesting.ps.rgb24.ref.png \ diff --git a/test/Makefile.sources b/test/Makefile.sources index 0e6173bce..d1658bb30 100644 --- a/test/Makefile.sources +++ b/test/Makefile.sources @@ -42,6 +42,7 @@ test_sources = \ clip-fill-rule-pixel-aligned.c \ clip-group-shapes.c \ clip-image.c \ + clip-intersect.c \ clip-nesting.c \ clip-operator.c \ clip-push-group.c \ diff --git a/test/clip-intersect.c b/test/clip-intersect.c new file mode 100644 index 000000000..295fbc93c --- /dev/null +++ b/test/clip-intersect.c @@ -0,0 +1,94 @@ +/* + * Copyright 2009 Chris Wilson + * Copyright 2011 Intel Corporation + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Chris Wilson not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Chris Wilson makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +#define WIDTH 20 +#define HEIGHT 20 + +static void clip_mask (cairo_t *cr) +{ + cairo_move_to (cr, 10, 0); + cairo_line_to (cr, 0, 10); + cairo_line_to (cr, 10, 20); + cairo_line_to (cr, 20, 10); + cairo_clip (cr); +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + clip_mask (cr); + cairo_set_source_rgb (cr, 0, 1, 0); + cairo_paint (cr); + cairo_reset_clip (cr); + + cairo_set_source_rgb (cr, 1, 0, 0); + + cairo_rectangle (cr, 0, 0, 4, 4); + cairo_clip (cr); + clip_mask (cr); + cairo_paint (cr); + cairo_reset_clip (cr); + + cairo_rectangle (cr, 20, 0, -4, 4); + cairo_clip (cr); + clip_mask (cr); + cairo_paint (cr); + cairo_reset_clip (cr); + + cairo_rectangle (cr, 20, 20, -4, -4); + cairo_clip (cr); + clip_mask (cr); + cairo_paint (cr); + cairo_reset_clip (cr); + + cairo_rectangle (cr, 0, 20, 4, -4); + cairo_clip (cr); + clip_mask (cr); + cairo_paint (cr); + cairo_reset_clip (cr); + + cairo_set_source_rgb (cr, 0, 0, 1); + + cairo_rectangle (cr, 8, 8, 4, 4); + cairo_clip (cr); + clip_mask (cr); + cairo_paint (cr); + cairo_reset_clip (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (clip_intersect, + "Tests intersection of a simple clip with a clip-mask", + "clip, paint", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw) diff --git a/test/clip-intersect.ref.png b/test/clip-intersect.ref.png new file mode 100644 index 0000000000000000000000000000000000000000..f02f1cbe2609935151c84ea62bb0a7cd7a9ece4d GIT binary patch literal 201 zcmeAS@N?(olHy`uVBq!ia0vp^A|TAc1SFYWcSQjywj^(N7l!{JxM1({$v}}hPZ!4! zi{7PIc5^it@U%XRkB{2E?$@!qea#9%#ZIa>xqfD3>UFF5%$alG*fXICoy*!BOiZT> zKX!j+cc9tlPlxkMo5@CB&YWKVe7cNH*gpPa$?ttWzP;|Zop*}c^6T?r|8B@yxym;v w_xurmUbh$ZJx?A?PTg=~{ldAj78WswSmneQx(0r+1v!zy)78&qol`;+0Ke-}QUCw| literal 0 HcmV?d00001