add cairo

1 files changed, 119 insertions, 0 deletions

diff --git a/libs/cairo-1.16.0/test/surface-pattern-operator.c b/libs/cairo-1.16.0/test/surface-pattern-operator.c
new file mode 100644
index 0000000..994baf9
--- /dev/null
+++ b/libs/cairo-1.16.0/test/surface-pattern-operator.c
@@ -0,0 +1,119 @@
+/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */
+/*
+ * Copyright 2009 Andrea Canciani
+ *
+ * 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: Andrea Canciani <ranma42@gmail.com>
+ */
+
+#include "cairo-test.h"
+
+#define N_OPERATORS (CAIRO_OPERATOR_SATURATE + 1)
+#define HEIGHT 16
+#define WIDTH 16
+#define PAD 3
+
+static cairo_pattern_t*
+_create_pattern (cairo_surface_t *target, cairo_content_t content, int width, int height)
+{
+    cairo_pattern_t *pattern;
+    cairo_surface_t *surface;
+    cairo_t *cr;
+
+    surface = cairo_surface_create_similar (target, content, width, height);
+    cr = cairo_create (surface);
+    cairo_surface_destroy (surface);
+
+    cairo_set_source_rgb (cr, 1, 0, 0);
+    cairo_arc (cr, 0.5 * width, 0.5 * height, 0.45 * height, -M_PI / 4, 3 * M_PI / 4);
+    cairo_fill (cr);
+
+    pattern = cairo_pattern_create_for_surface (cairo_get_target (cr));
+    cairo_destroy (cr);
+
+    return pattern;
+}
+
+static cairo_test_status_t
+draw (cairo_t *cr, int width, int height)
+{
+    cairo_pattern_t *alpha_pattern, *color_alpha_pattern, *pattern;
+    unsigned int n, i;
+
+    alpha_pattern = _create_pattern (cairo_get_target (cr),
+				     CAIRO_CONTENT_ALPHA,
+				     0.9 * WIDTH, 0.9 * HEIGHT);
+    color_alpha_pattern = _create_pattern (cairo_get_target (cr),
+					   CAIRO_CONTENT_COLOR_ALPHA,
+					   0.9 * WIDTH, 0.9 * HEIGHT);
+
+    pattern = cairo_pattern_create_linear (WIDTH, 0, 0, HEIGHT);
+    cairo_pattern_add_color_stop_rgba (pattern, 0.2, 0, 0, 1, 1);
+    cairo_pattern_add_color_stop_rgba (pattern, 0.8, 0, 0, 1, 0);
+
+    cairo_translate (cr, PAD, PAD);
+
+    for (n = 0; n < N_OPERATORS; n++) {
+	cairo_save (cr);
+	for (i = 0; i < 4; i++) {
+	    cairo_reset_clip (cr);
+	    cairo_rectangle (cr, 0, 0, WIDTH, HEIGHT);
+	    cairo_clip (cr);
+
+	    cairo_set_source (cr, pattern);
+	    cairo_set_operator (cr, CAIRO_OPERATOR_OVER);
+	    if (i & 2) {
+	        cairo_paint (cr);
+	    } else {
+	        cairo_rectangle (cr, WIDTH/2, HEIGHT/2, WIDTH, HEIGHT);
+		cairo_fill (cr);
+	    }
+
+	    cairo_set_source (cr, i & 1 ? alpha_pattern : color_alpha_pattern);
+	    cairo_set_operator (cr, n);
+	    if (i & 2) {
+	        cairo_paint (cr);
+	    } else {
+	        cairo_rectangle (cr, WIDTH/2, HEIGHT/2, WIDTH, HEIGHT);
+		cairo_fill (cr);
+	    }
+
+	    cairo_translate (cr, 0, HEIGHT+PAD);
+	}
+	cairo_restore (cr);
+
+	cairo_translate (cr, WIDTH+PAD, 0);
+    }
+
+    cairo_pattern_destroy (pattern);
+    cairo_pattern_destroy (alpha_pattern);
+    cairo_pattern_destroy (color_alpha_pattern);
+
+    return CAIRO_TEST_SUCCESS;
+}
+
+CAIRO_TEST (surface_pattern_operator,
+	    "Tests alpha-only and alpha-color sources with all operators",
+	    "surface, pattern, operator", /* keywords */
+	    NULL, /* requirements */
+	    (WIDTH+PAD) * N_OPERATORS + PAD, 4*HEIGHT + 5*PAD,
+	    NULL, draw)