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author | Chris Wilson <chris@chris-wilson.co.uk> | 2008-09-19 13:19:51 +0100 |
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committer | Chris Wilson <chris@chris-wilson.co.uk> | 2008-09-19 16:59:50 +0100 |
commit | e749b58af827e4cc28353bcc6bc4b2ab8d47aaf6 (patch) | |
tree | 01ec8d5b66bd9d3798da9843d297f8070eea1b0f /test/rectilinear-fill.c | |
parent | d5cd7ee74fb64b00597880a75b2e62065fac59b3 (diff) | |
download | cairo-e749b58af827e4cc28353bcc6bc4b2ab8d47aaf6.tar.gz |
[test] Add rectilinear-fill
Add a test-case to exercise pixel-aligned fills to verify the optimised
rectilinear filler.
Diffstat (limited to 'test/rectilinear-fill.c')
-rw-r--r-- | test/rectilinear-fill.c | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/test/rectilinear-fill.c b/test/rectilinear-fill.c new file mode 100644 index 000000000..14fc511ac --- /dev/null +++ b/test/rectilinear-fill.c @@ -0,0 +1,92 @@ +/* + * Copyright © 2008 Chris Wilson + * + * 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 SIZE 24 + +static cairo_test_draw_function_t draw; + +static const cairo_test_t test = { + "rectilinear-fill", + "Test rectilinear fill operations (covering only whole pixels)", + SIZE, 2 * SIZE, + draw +}; + +static void +draw_rectangles (cairo_t *cr) +{ + cairo_save (cr); + + /* test constructing single rectangles */ + cairo_rectangle (cr, 0, 0, SIZE/2, 2); + cairo_fill (cr); + + cairo_rectangle (cr, 0, 5, SIZE/2, -2); + cairo_fill (cr); + + cairo_rectangle (cr, SIZE/2, 6, -SIZE/2, 2); + cairo_fill (cr); + + cairo_rectangle (cr, SIZE/2, 11, -SIZE/2, -2); + cairo_fill (cr); + + /* test constructing multiple rectangles */ + cairo_translate (cr, 0, 12); + cairo_rectangle (cr, 0, 0, SIZE/2, 2); + cairo_rectangle (cr, 0, 5, SIZE/2, -2); + cairo_rectangle (cr, SIZE/2, 6, -SIZE/2, 2); + cairo_rectangle (cr, SIZE/2, 11, -SIZE/2, -2); + cairo_fill (cr); + + cairo_restore (cr); +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + /* Paint background white, then draw in black. */ + cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); /* white */ + cairo_paint (cr); + cairo_set_source_rgb (cr, 0.0, 0.0, 0.0); /* black */ + + draw_rectangles (cr); + + /* and check using cw winding */ + cairo_translate (cr, SIZE, SIZE); + cairo_scale (cr, -1, 1); + + draw_rectangles (cr); + + return CAIRO_TEST_SUCCESS; +} + +int +main (void) +{ + return cairo_test (&test); +} |