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Diffstat (limited to 'test/clip-group-shapes.c')
| -rw-r--r-- | test/clip-group-shapes.c | 188 |
1 files changed, 0 insertions, 188 deletions
diff --git a/test/clip-group-shapes.c b/test/clip-group-shapes.c deleted file mode 100644 index 88bb9b3dd..000000000 --- a/test/clip-group-shapes.c +++ /dev/null @@ -1,188 +0,0 @@ -/* - * Copyright (c) 2010 M Joonas Pihlaja - * - * 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: M Joonas Pihlaja <jpihlaja@cc.helsinki.fi> - */ -#include "cairo-test.h" - -/* Tests specific clipping fast paths and their interaction with - * groups: It shouldn't matter if the clip is set before or after - * pushing a group. - * - * There's some overlap with the following tests, but they test for - * different things: - * - * group-clip.c (tests preserving paths), clipped-group.c (tests - * clipping the same thing different ways), clip-push-group (tests - * for a specific bug). - */ - -#define GENERATE_REF 0 - -/* For determining whether we establish the clip path before or after - * pushing a group. */ -enum { - CLIP_OUTSIDE_GROUP, - CLIP_INSIDE_GROUP -}; - -typedef void (*clipper_t)(cairo_t *cr, int w, int h); - -static cairo_test_status_t -clip_and_paint (cairo_t *cr, - int w, int h, - clipper_t do_clip, - int clip_where) -{ - cairo_save (cr); { - if (GENERATE_REF) { - do_clip (cr, w, h); - cairo_paint (cr); - } else { - if (clip_where == CLIP_OUTSIDE_GROUP) - do_clip (cr, w, h); - cairo_push_group (cr); { - if (clip_where == CLIP_INSIDE_GROUP) - do_clip (cr, w, h); - cairo_paint (cr); - } - cairo_pop_group_to_source (cr); - if (clip_where == CLIP_OUTSIDE_GROUP) - cairo_reset_clip (cr); - cairo_paint (cr); - } - } - cairo_restore (cr); - return CAIRO_TEST_SUCCESS; -} - -static cairo_test_status_t -run_clip_test (cairo_t *cr, int w, int h, clipper_t do_clip) -{ - cairo_set_source_rgb (cr, 1,1,1); - cairo_paint (cr); - cairo_set_source_rgb (cr, 1,0,0); - - /* Left. */ - clip_and_paint (cr, w/2, h, do_clip, CLIP_OUTSIDE_GROUP); - - /* Right */ - cairo_translate(cr, w/2, 0); - clip_and_paint (cr, w/2, h, do_clip, CLIP_INSIDE_GROUP); - - return CAIRO_TEST_SUCCESS; -} - -static void -clip_aligned_rectangles (cairo_t *cr, int w, int h) -{ - int x1 = 0.2 * w; - int y1 = 0.2 * h; - int x2 = 0.8 * w; - int y2 = 0.8 * h; - - cairo_rectangle (cr, x1, y1, w, h); - cairo_clip (cr); - - cairo_rectangle (cr, x2, y2, -w, -h); - cairo_clip (cr); -} - -static void -clip_unaligned_rectangles (cairo_t *cr, int w, int h) -{ - /* This clip stresses the antialiased edges produced by an - * unaligned rectangular clip. The edges should be produced by - * compositing red on white with alpha = 0.5 on the sides, and with - * alpha = 0.25 in the corners. */ - int x1 = 0.2 * w; - int y1 = 0.2 * h; - int x2 = 0.8 * w; - int y2 = 0.8 * h; - - cairo_rectangle (cr, x1+0.5, y1+0.5, w, h); - cairo_clip (cr); - - cairo_rectangle (cr, x2+0.5, y2+0.5, -w, -h); - w = x2 - x1; - h = y2 - y1; - cairo_rectangle (cr, x2, y1+1, -w+1, h-1); - cairo_clip (cr); -} - -static void -clip_circles (cairo_t *cr, int w, int h) -{ - int x1 = 0.5 * w; - int y1 = 0.5 * h; - int x2 = 0.75 * w; - int y2 = 0.75 * h; - int r = 0.4*MIN(w,h); - - cairo_arc (cr, x1, y1, r, 0, 6.28); - cairo_close_path (cr); - cairo_clip (cr); - - cairo_arc (cr, x2, y2, r, 0, 6.28); - cairo_close_path (cr); - cairo_clip (cr); -} - -static cairo_test_status_t -draw_aligned_rectangles (cairo_t *cr, int width, int height) -{ - return run_clip_test (cr, width, height, clip_aligned_rectangles); -} - -static cairo_test_status_t -draw_unaligned_rectangles (cairo_t *cr, int width, int height) -{ - return run_clip_test (cr, width, height, clip_unaligned_rectangles); -} - -static cairo_test_status_t -draw_circles (cairo_t *cr, int width, int height) -{ - return run_clip_test (cr, width, height, clip_circles); -} - -CAIRO_TEST (clip_group_shapes_aligned_rectangles, - "Test clip and group interaction with aligned rectangle clips", - "clip", /* keywords */ - NULL, /* requirements */ - 200, 100, - NULL, draw_aligned_rectangles) - -CAIRO_TEST (clip_group_shapes_unaligned_rectangles, - "Test clip and group interaction with unaligned rectangle clips", - "clip", /* keywords */ - "target=raster", /* requirements */ - 200, 100, - NULL, draw_unaligned_rectangles) - -CAIRO_TEST (clip_group_shapes_circles, - "Test clip and group interaction with circular clips", - "clip", /* keywords */ - NULL, /* requirements */ - 200, 100, - NULL, draw_circles) |