add cairo

1 files changed, 212 insertions, 0 deletions

diff --git a/libs/cairo-1.16.0/test/solid-pattern-cache-stress.c b/libs/cairo-1.16.0/test/solid-pattern-cache-stress.c
new file mode 100644
index 0000000..c2a1c15
--- /dev/null
+++ b/libs/cairo-1.16.0/test/solid-pattern-cache-stress.c
@@ -0,0 +1,212 @@
+/*
+ * Copyright © 2007 Chris Wilson.
+ *
+ * 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
+ * Chris Wilson. Not be used in advertising or publicity pertaining to
+ * distribution of the software without specific, written prior
+ * permission. Chris Wilson makes no representations about the
+ * suitability of this software for any purpose.  It is provided "as
+ * is" without express or implied warranty.
+ *
+ * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
+ * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS, IN NO EVENT SHALL CHRIS WILSON 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: Chris Wilson <chris at chris-wilson.co.uk>
+ */
+
+#if HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "cairo-test.h"
+#include <stdlib.h> /* drand48() */
+
+#define LOOPS 10
+#define NRAND 100
+
+#ifndef HAVE_DRAND48
+#define drand48() (rand () / (double) RAND_MAX)
+#endif
+
+static cairo_scaled_font_t *scaled_font;
+
+static cairo_t *
+_cairo_create_similar (cairo_t *cr, int width, int height)
+{
+    cairo_surface_t *similar;
+
+    similar = cairo_surface_create_similar (cairo_get_target (cr),
+	                                    cairo_surface_get_content (cairo_get_target (cr)),
+				            width, height);
+    cr = cairo_create (similar);
+    cairo_surface_destroy (similar);
+
+    return cr;
+}
+
+static cairo_t *
+_cairo_create_image (cairo_t *cr, cairo_format_t format, int width, int height)
+{
+    cairo_surface_t *image;
+
+    image = cairo_image_surface_create (format, width, height);
+    cr = cairo_create (image);
+    cairo_surface_destroy (image);
+
+    return cr;
+}
+
+static void
+_propagate_status (cairo_t *dst, cairo_t *src)
+{
+    cairo_path_t path;
+
+    path.status = cairo_status (src);
+    if (path.status) {
+	path.num_data = 0;
+	path.data = NULL;
+	cairo_append_path (dst, &path);
+    }
+}
+
+static void
+_draw (cairo_t *cr,
+       double red,
+       double green,
+       double blue)
+{
+    cairo_text_extents_t extents;
+
+    cairo_set_source_rgb (cr, red, green, blue);
+    cairo_paint (cr);
+
+    cairo_move_to (cr, 0, 0);
+    cairo_line_to (cr, 1, 1);
+    cairo_stroke (cr);
+
+    cairo_mask (cr, cairo_get_source (cr));
+
+    cairo_set_scaled_font (cr, scaled_font);
+    cairo_text_extents (cr, "cairo", &extents);
+    cairo_move_to (cr,
+	           -extents.x_bearing - .5 * extents.width,
+		   -extents.y_bearing - .5 * extents.height);
+    cairo_show_text (cr, "cairo");
+}
+
+static void
+use_similar (cairo_t *cr,
+	    double red,
+	    double green,
+	    double blue)
+{
+    cairo_t *cr2;
+
+    if (cairo_status (cr))
+	return;
+
+    cr2 = _cairo_create_similar (cr, 1, 1);
+
+    _draw (cr2, red, green, blue);
+
+    _propagate_status (cr, cr2);
+    cairo_destroy (cr2);
+}
+
+static void
+use_image (cairo_t *cr,
+	   cairo_format_t format,
+	   double red,
+	   double green,
+	   double blue)
+{
+    cairo_t *cr2;
+
+    if (cairo_status (cr))
+	return;
+
+    cr2 = _cairo_create_image (cr, format, 1, 1);
+
+    _draw (cr2, red, green, blue);
+
+    _propagate_status (cr, cr2);
+    cairo_destroy (cr2);
+}
+
+static void
+use_solid (cairo_t *cr,
+	   double red,
+	   double green,
+	   double blue)
+{
+    /* mix in dissimilar solids */
+    use_image (cr, CAIRO_FORMAT_A1, red, green, blue);
+    use_image (cr, CAIRO_FORMAT_A8, red, green, blue);
+    use_image (cr, CAIRO_FORMAT_RGB24, red, green, blue);
+    use_image (cr, CAIRO_FORMAT_ARGB32, red, green, blue);
+
+    use_similar (cr, red, green, blue);
+
+    _draw (cr, red, green, blue);
+}
+
+static cairo_test_status_t
+draw (cairo_t *cr, int width, int height)
+{
+    const cairo_test_context_t *ctx = cairo_test_get_context (cr);
+    cairo_status_t status;
+    const double colors[8][3] = {
+	{ 1.0, 0.0, 0.0 }, /* red */
+	{ 0.0, 1.0, 0.0 }, /* green */
+	{ 1.0, 1.0, 0.0 }, /* yellow */
+	{ 0.0, 0.0, 1.0 }, /* blue */
+	{ 1.0, 0.0, 1.0 }, /* magenta */
+	{ 0.0, 1.0, 1.0 }, /* cyan */
+	{ 1.0, 1.0, 1.0 }, /* white */
+	{ 0.0, 0.0, 0.0 }, /* black */
+    };
+    int i, j, loop;
+
+    /* cache a resolved scaled-font */
+    scaled_font = cairo_get_scaled_font (cr);
+
+    for (loop = 0; loop < LOOPS; loop++) {
+	for (i = 0; i < LOOPS; i++) {
+	    for (j = 0; j < 8; j++) {
+		use_solid (cr, colors[j][0], colors[j][1], colors[j][2]);
+		status = cairo_status (cr);
+		if (status)
+		    return cairo_test_status_from_status (ctx, status);
+	    }
+	}
+
+	for (i = 0; i < NRAND; i++) {
+	    use_solid (cr, drand48 (), drand48 (), drand48 ());
+	    status = cairo_status (cr);
+	    if (status)
+		return cairo_test_status_from_status (ctx, status);
+	}
+    }
+
+    /* stress test only, so clear the surface before comparing */
+    cairo_set_source_rgb (cr, 0, 0, 1);
+    cairo_paint (cr);
+
+    return CAIRO_TEST_SUCCESS;
+}
+
+CAIRO_TEST (solid_pattern_cache_stress,
+	    "Stress the solid pattern cache and ensure it behaves",
+	    "stress", /* keywords */
+	    NULL, /* requirements */
+	    1, 1,
+	    NULL, draw)