diff options
Diffstat (limited to 'libs/cairo-1.16.0/test/clip-draw-unbounded.c')
| -rw-r--r-- | libs/cairo-1.16.0/test/clip-draw-unbounded.c | 184 |
1 files changed, 184 insertions, 0 deletions
diff --git a/libs/cairo-1.16.0/test/clip-draw-unbounded.c b/libs/cairo-1.16.0/test/clip-draw-unbounded.c new file mode 100644 index 0000000..6b9263b --- /dev/null +++ b/libs/cairo-1.16.0/test/clip-draw-unbounded.c @@ -0,0 +1,184 @@ +/* -*- 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) |