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-rw-r--r--test/clip-draw-unbounded.c184
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diff --git a/test/clip-draw-unbounded.c b/test/clip-draw-unbounded.c
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+/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */
+/*
+ * Copyright 2009 Chris Wilson
+ * Copyright 2010 Andrea Canciani
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use, copy,
+ * modify, merge, publish, distribute, sublicense, and/or sell copies
+ * of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ * Author: Chris Wilson <chris@chris-wilson.co.uk>
+ */
+
+#include "cairo-test.h"
+
+#define WIDTH 60
+#define HEIGHT 60
+
+static void
+stroke (cairo_t *cr)
+{
+ cairo_set_operator (cr, CAIRO_OPERATOR_OVER);
+ cairo_set_source_rgb (cr, 1, 0, 0);
+ cairo_paint (cr);
+
+ cairo_set_operator (cr, CAIRO_OPERATOR_IN);
+ cairo_set_source_rgb (cr, 0, 0.7, 0);
+ cairo_arc (cr, 10, 10, 7.5, 0, 2 * M_PI);
+ cairo_move_to (cr, 0, 20);
+ cairo_line_to (cr, 20, 0);
+ cairo_stroke (cr);
+}
+
+static void
+fill (cairo_t *cr)
+{
+ cairo_set_operator (cr, CAIRO_OPERATOR_OVER);
+ cairo_set_source_rgb (cr, 1, 0, 0);
+ cairo_paint (cr);
+
+ cairo_set_operator (cr, CAIRO_OPERATOR_IN);
+ cairo_set_source_rgb (cr, 0, 0.7, 0);
+ cairo_new_sub_path (cr);
+ cairo_arc (cr, 10, 10, 8.5, 0, 2 * M_PI);
+ cairo_new_sub_path (cr);
+ cairo_arc_negative (cr, 10, 10, 6.5, 2 * M_PI, 0);
+
+ cairo_move_to (cr, -1, 19);
+ cairo_line_to (cr, 1, 21);
+ cairo_line_to (cr, 21, 1);
+ cairo_line_to (cr, 19, -1);
+ cairo_line_to (cr, -1, 19);
+
+ cairo_fill (cr);
+}
+
+static void
+clip_simple (cairo_t *cr)
+{
+ cairo_rectangle (cr, 0, 0, 20, 20);
+ cairo_clip (cr);
+}
+
+static void
+clip_unaligned (cairo_t *cr)
+{
+ cairo_rectangle (cr, 0.5, 0.5, 20, 20);
+ cairo_clip (cr);
+}
+
+static void
+clip_aligned (cairo_t *cr)
+{
+ cairo_fill_rule_t orig_rule;
+
+ orig_rule = cairo_get_fill_rule (cr);
+ cairo_set_fill_rule (cr, CAIRO_FILL_RULE_EVEN_ODD);
+ cairo_rectangle (cr, 0, 0, 20, 20);
+ cairo_rectangle (cr, 3, 3, 10, 10);
+ cairo_rectangle (cr, 7, 7, 10, 10);
+ cairo_clip (cr);
+ cairo_set_fill_rule (cr, orig_rule);
+}
+
+static void
+clip_mask (cairo_t *cr)
+{
+ cairo_arc (cr, 10, 10, 10, 0, 2 * M_PI);
+ cairo_new_sub_path (cr);
+ cairo_arc_negative (cr, 10, 10, 5, 2 * M_PI, 0);
+ cairo_new_sub_path (cr);
+ cairo_arc (cr, 10, 10, 2, 0, 2 * M_PI);
+ cairo_clip (cr);
+}
+
+static void (* const clip_funcs[])(cairo_t *cr) = {
+ clip_simple,
+ clip_unaligned,
+ clip_aligned,
+ clip_mask
+};
+
+static double translations[][2] = {
+ { 10, 10 },
+ { WIDTH, 0 },
+ { -WIDTH, HEIGHT },
+ { WIDTH, 0 }
+};
+
+static cairo_test_status_t
+draw (cairo_t *cr, void (*shapes)(cairo_t *))
+{
+ unsigned int i;
+ cairo_set_source_rgb (cr, 1, 1, 1);
+ cairo_paint (cr);
+
+ for (i = 0; i < ARRAY_LENGTH (clip_funcs); i++) {
+ cairo_translate (cr, translations[i][0], translations[i][1]);
+
+ cairo_save (cr);
+ cairo_scale (cr, 2, 2);
+ clip_funcs[i] (cr);
+ shapes (cr);
+ cairo_restore (cr);
+ }
+
+ return CAIRO_TEST_SUCCESS;
+}
+
+static cairo_test_status_t
+draw_stroke (cairo_t *cr, int width, int height)
+{
+ return draw (cr, stroke);
+}
+
+static cairo_test_status_t
+draw_fill_nz (cairo_t *cr, int width, int height)
+{
+ cairo_set_fill_rule (cr, CAIRO_FILL_RULE_WINDING);
+ return draw (cr, fill);
+}
+
+static cairo_test_status_t
+draw_fill_eo (cairo_t *cr, int width, int height)
+{
+ cairo_set_fill_rule (cr, CAIRO_FILL_RULE_EVEN_ODD);
+ return draw (cr, fill);
+}
+
+CAIRO_TEST (clip_stroke_unbounded,
+ "Tests unbounded stroke through complex clips.",
+ "clip, stroke, unbounded", /* keywords */
+ NULL, /* requirements */
+ 2 * WIDTH, 2 * HEIGHT,
+ NULL, draw_stroke)
+
+CAIRO_TEST (clip_fill_nz_unbounded,
+ "Tests unbounded fill through complex clips (with winding fill rule).",
+ "clip, fill, unbounded", /* keywords */
+ NULL, /* requirements */
+ 2 * WIDTH, 2 * HEIGHT,
+ NULL, draw_fill_nz)
+
+CAIRO_TEST (clip_fill_eo_unbounded,
+ "Tests unbounded fill through complex clips (with even-odd fill rule).",
+ "clip, fill, unbounded", /* keywords */
+ NULL, /* requirements */
+ 2 * WIDTH, 2 * HEIGHT,
+ NULL, draw_fill_eo)