diff options
Diffstat (limited to 'libs/cairo-1.16.0/test/clear-source.c')
| -rw-r--r-- | libs/cairo-1.16.0/test/clear-source.c | 169 |
1 files changed, 169 insertions, 0 deletions
diff --git a/libs/cairo-1.16.0/test/clear-source.c b/libs/cairo-1.16.0/test/clear-source.c new file mode 100644 index 0000000..5410932 --- /dev/null +++ b/libs/cairo-1.16.0/test/clear-source.c @@ -0,0 +1,169 @@ +/* + * Copyright 2009 Benjamin Otte + * + * 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: Benjamin Otte <otte@gnome.org> + */ + +#include "cairo-test.h" + +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_surface_destroy (surface); + + cairo_set_source_rgb (cr, 0.75, 0, 0); + cairo_paint (cr); + + if (type == PAINTED) + goto DONE; + + cairo_set_operator (cr, CAIRO_OPERATOR_CLEAR); + cairo_paint (cr); + +DONE: + surface = cairo_surface_reference (cairo_get_target (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_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++) { + cairo_surface_t *surface; + + 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); + + cairo_surface_destroy (surface); + } + } + + 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) |