From 038829eb84e53532a6e3c75225933ad85da50cfc Mon Sep 17 00:00:00 2001 From: Benjamin Otte Date: Sun, 6 Dec 2009 17:47:50 +0100 Subject: [PATCH] [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. --- test/Makefile.sources | 1 + test/clear-source.c | 163 ++++++++++++++++++++++++++++++++++++++ test/clear-source.ref.png | Bin 0 -> 881 bytes 3 files changed, 164 insertions(+) create mode 100644 test/clear-source.c create mode 100644 test/clear-source.ref.png diff --git a/test/Makefile.sources b/test/Makefile.sources index 068858a97..af91ed691 100644 --- a/test/Makefile.sources +++ b/test/Makefile.sources @@ -13,6 +13,7 @@ test_sources = \ caps-joins-curve.c \ caps-sub-paths.c \ clear.c \ + clear-source.c \ clip-all.c \ clip-disjoint.c \ clip-device-offset.c \ 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 + */ + +#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) diff --git a/test/clear-source.ref.png b/test/clear-source.ref.png new file mode 100644 index 0000000000000000000000000000000000000000..4948c5e031378b7a240d0dc67fb16b3550f09592 GIT binary patch literal 881 zcmeAS@N?(olHy`uVBq!ia0vp^JwP1K!2~3?a_o2kq}Y|gW!U_%O^81FspgG zIEGZrc{_W5msFs{(f4yZjRM0qwQ+j+2s#-=FWq!4?1K15%^H#U2ah?iXm_tuanh{x4Kv(BNe7 zVtO$3WbZyfLY{{E`ewO40+nHnZBEPyIPVmf?Uq4c+4GD6B-wD7}< zCY4sKsvF!z8L%imnlZU-&!6QxPNx2Sn$;8k1HO`~Tm_ z%bz!S>SK=E=UgtnPd*uS_@uRT?xY|sp2N)-qSmHOnz>3UXr+&Y+@H?>h$&R_0^ls>AZ2i&eTcACv9y5>D#2UIz&rXth>J6LWVDW^Gwg2uB?b_!7EGl z&;OHYQPQvWnkT!|tkyVs{dM+cM*)`Iv-iC}|NL`%JNw}qU#>)4c|D)KdH3@ti{9Tq z|NOqcN;a?h`