diff options
author | Benjamin Otte <otte@gnome.org> | 2009-12-06 17:47:50 +0100 |
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committer | Chris Wilson <chris@chris-wilson.co.uk> | 2010-01-22 23:01:49 +0000 |
commit | 038829eb84e53532a6e3c75225933ad85da50cfc (patch) | |
tree | ad2d1eeabc95d37c83ef94831e5a5b78dc094059 /test/clear-source.c | |
parent | bf7fb4e0e09d05f42425cc7969c64992d4dc9ff9 (diff) | |
download | cairo-038829eb84e53532a6e3c75225933ad85da50cfc.tar.gz |
[test] Add new test checking is_clear is handled properly
This test does various operations with a clear source surface with
various content types.
The idea is to make sure optimizations done when surface->is_clear ==
TRUE only happen in the proper cases.
Diffstat (limited to 'test/clear-source.c')
-rw-r--r-- | test/clear-source.c | 163 |
1 files changed, 163 insertions, 0 deletions
diff --git a/test/clear-source.c b/test/clear-source.c new file mode 100644 index 000000000..36f46b39f --- /dev/null +++ b/test/clear-source.c @@ -0,0 +1,163 @@ +/* + * Copyright 2009 Benjamin Otte + * + * 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 + * Benjamin Otte not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Benjamin Otte makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * BENJAMIN OTTE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL BENJAMIN OTTE 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: Benjamin Otte <otte@gnome.org> + */ + +#include "cairo-test.h" + +#define ARRAY_LENGTH(x) (sizeof(x) / sizeof(x[0])) +typedef enum { + CLEAR, + CLEARED, + PAINTED +} surface_type_t; + +#define SIZE 10 +#define SPACE 5 + +static cairo_surface_t * +create_surface (cairo_t *target, cairo_content_t content, surface_type_t type) +{ + cairo_surface_t *surface; + cairo_t *cr; + + surface = cairo_surface_create_similar (cairo_get_target (target), + content, + SIZE, SIZE); + + if (type == CLEAR) + return surface; + + cr = cairo_create (surface); + cairo_set_source_rgb (cr, 0.75, 0, 0); + cairo_paint (cr); + cairo_destroy (cr); + + if (type == PAINTED) + return surface; + + cr = cairo_create (surface); + cairo_set_operator (cr, CAIRO_OPERATOR_CLEAR); + cairo_paint (cr); + cairo_destroy (cr); + + return surface; +} + +static void +paint (cairo_t *cr, cairo_surface_t *surface) +{ + cairo_set_source_surface (cr, surface, 0, 0); + cairo_paint (cr); +} + +static void +fill (cairo_t *cr, cairo_surface_t *surface) +{ + cairo_set_source_surface (cr, surface, 0, 0); + cairo_rectangle (cr, -SPACE, -SPACE, SIZE + 2 * SPACE, SIZE + 2 * SPACE); + cairo_fill (cr); +} + +static void +stroke (cairo_t *cr, cairo_surface_t *surface) +{ + cairo_set_source_surface (cr, surface, 0, 0); + cairo_set_line_width (cr, 2.0); + cairo_rectangle (cr, 1, 1, SIZE - 2, SIZE - 2); + cairo_stroke (cr); +} + +static void +mask (cairo_t *cr, cairo_surface_t *surface) +{ + cairo_set_source_rgb (cr, 0, 0, 0.75); + cairo_mask_surface (cr, surface, 0, 0); +} + +static void +mask_self (cairo_t *cr, cairo_surface_t *surface) +{ + cairo_set_source_surface (cr, surface, 0, 0); + cairo_mask_surface (cr, surface, 0, 0); +} + +static void +glyphs (cairo_t *cr, cairo_surface_t *surface) +{ + cairo_set_source_surface (cr, surface, 0, 0); + cairo_select_font_face (cr, + "@cairo:", + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_NORMAL); + cairo_set_font_size (cr, 16); + cairo_translate (cr, 0, SIZE); + cairo_show_text (cr, "C"); +} + +typedef void (* operation_t) (cairo_t *cr, cairo_surface_t *surface); +static operation_t operations[] = { + paint, + fill, + stroke, + mask, + mask_self, + glyphs +}; + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_content_t contents[] = { CAIRO_CONTENT_COLOR_ALPHA, CAIRO_CONTENT_COLOR, CAIRO_CONTENT_ALPHA }; + unsigned int content, type, ops; + cairo_surface_t *surface; + + cairo_set_source_rgb (cr, 0.5, 0.5, 0.5); + cairo_paint (cr); + cairo_translate (cr, SPACE, SPACE); + + for (type = 0; type <= PAINTED; type++) { + for (content = 0; content < ARRAY_LENGTH (contents); content++) { + surface = create_surface (cr, contents[content], type); + + cairo_save (cr); + for (ops = 0; ops < ARRAY_LENGTH (operations); ops++) { + cairo_save (cr); + operations[ops] (cr, surface); + cairo_restore (cr); + cairo_translate (cr, 0, SIZE + SPACE); + } + cairo_restore (cr); + cairo_translate (cr, SIZE + SPACE, 0); + } + } + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (clear_source, + "Check painting with cleared surfaces works as expected", + NULL, /* keywords */ + NULL, /* requirements */ + (SIZE + SPACE) * 9 + SPACE, ARRAY_LENGTH (operations) * (SIZE + SPACE) + SPACE, + NULL, draw) |