From f1fe73d1909a2448a004a88362a1a532d0d4f7c3 Mon Sep 17 00:00:00 2001 From: sanine Date: Sun, 12 Feb 2023 23:53:22 -0600 Subject: switch to tinyobj and nanovg from assimp and cairo --- libs/cairo-1.16.0/test/zero-alpha.c | 95 ------------------------------------- 1 file changed, 95 deletions(-) delete mode 100644 libs/cairo-1.16.0/test/zero-alpha.c (limited to 'libs/cairo-1.16.0/test/zero-alpha.c') diff --git a/libs/cairo-1.16.0/test/zero-alpha.c b/libs/cairo-1.16.0/test/zero-alpha.c deleted file mode 100644 index 01da92c..0000000 --- a/libs/cairo-1.16.0/test/zero-alpha.c +++ /dev/null @@ -1,95 +0,0 @@ -/* - * Copyright © 2006 Red Hat, Inc. - * - * 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 - * Red Hat, Inc. not be used in advertising or publicity pertaining to - * distribution of the software without specific, written prior - * permission. Red Hat, Inc. makes no representations about the - * suitability of this software for any purpose. It is provided "as - * is" without express or implied warranty. - * - * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS - * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND - * FITNESS, IN NO EVENT SHALL RED HAT, INC. 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: Carl D. Worth - */ - -#include "cairo-test.h" - -#define SIZE 3 -#define REPS 10 - -/* History: - * - * 2006-06-13 Paul Giblock reports a "Strange alpha channel problem" on - * the cairo mailing list. - * - * 2006-06-13 Carl Worth writes this test in an attempt to reproduce - * the problem. The test first fills in a 3x3 rectangle with red, then - * starts pounding on that center pixel with various forms of - * zero-alpha rendering to see if its value can ever be made to - * change. - * - * 2006-06-13 Paul Giblock reports that this only happens with the - * xlib backend, and then only on some systems. - */ -static cairo_test_status_t -draw (cairo_t *cr, int width, int height) -{ - int i; - cairo_surface_t *surface; - uint32_t zero = 0; - - /* First paint background red. */ - cairo_set_source_rgb (cr, 1.0, 0.0, 0.0); /* red */ - cairo_paint (cr); - - /* Then we paint zero-alpha in several ways (always REPS times): */ - - /* 1. fill a rectangle with a zero-alpha solid source. */ - cairo_set_source_rgba (cr, 0.0, 0.0, 0.0, 0.0); /* transparent */ - cairo_rectangle (cr, 1.0, 1.0, 1.0, 1.0); - for (i=0; i < REPS; i++) - cairo_fill_preserve (cr); - cairo_new_path (cr); - - /* 2. paint with a zero-alpha image surface source. */ - surface = cairo_image_surface_create_for_data ((unsigned char *) &zero, - CAIRO_FORMAT_ARGB32, 1, 1, 4); - cairo_set_source_surface (cr, surface, 1, 1); - for (i=0; i < REPS; i++) - cairo_paint (cr); - - /* 3. clip to rectangle then paint with zero-alpha solid source. */ - cairo_rectangle (cr, 1.0, 1.0, 1.0, 1.0); - cairo_clip (cr); - cairo_set_source_rgba (cr, 0.0, 0.0, 0.0, 0.0); /* transparent */ - for (i=0; i < REPS; i++) - cairo_paint (cr); - - /* 4. With the clip still there, paint our image surface. */ - cairo_set_source_surface (cr, surface, 1, 1); - for (i=0; i < REPS; i++) - cairo_paint (cr); - - cairo_surface_finish (surface); /* zero will go out of scope */ - cairo_surface_destroy (surface); - - return CAIRO_TEST_SUCCESS; -} - -CAIRO_TEST (zero_alpha, - "Testing that drawing with zero alpha has no effect", - "alpha", /* keywords */ - NULL, /* requirements */ - SIZE, SIZE, - NULL, draw) -- cgit v1.2.1