add cairo

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)