add cairo

1 files changed, 201 insertions, 0 deletions

diff --git a/libs/cairo-1.16.0/test/a8-mask.c b/libs/cairo-1.16.0/test/a8-mask.c
new file mode 100644
index 0000000..ec70812
--- /dev/null
+++ b/libs/cairo-1.16.0/test/a8-mask.c
@@ -0,0 +1,201 @@
+/*
+ * Copyright © Jeff Muizelaar
+ *
+ * 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.
+ *
+ * JEFF MUIZELAAR 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.
+ *
+ * Authors: Jeff Muizelaar <jeff@infidigm.net>
+ *	    Carl Worth <cworth@cworth.org>
+ */
+
+#include "cairo-test.h"
+
+#define MASK_WIDTH 8
+#define MASK_HEIGHT 8
+
+static unsigned char mask[MASK_WIDTH * MASK_HEIGHT] = {
+    0x0, 0x0, 0xff, 0x0, 0xff, 0x0, 0x0, 0x0,
+    0x0, 0x0, 0xff, 0x0, 0xff, 0x0, 0x0, 0x0,
+    0x0, 0x0, 0xff, 0x0, 0xff, 0x0, 0x0, 0x0,
+    0x0, 0x0, 0xff, 0x0, 0xff, 0x0, 0x0, 0x0,
+    0x0, 0x0, 0xff, 0x0, 0xff, 0x0, 0x0, 0x0,
+    0x0, 0x0, 0xff, 0x0, 0xff, 0x0, 0x0, 0x0,
+    0x0, 0x0, 0xff, 0x0, 0xff, 0x0, 0x0, 0x0,
+    0x0, 0x0, 0xff, 0x0, 0xff, 0x0, 0x0, 0x0,
+};
+
+static cairo_test_status_t
+check_status (const cairo_test_context_t *ctx,
+	      cairo_status_t status,
+	      cairo_status_t expected)
+{
+    if (status == expected)
+	return CAIRO_TEST_SUCCESS;
+
+    cairo_test_log (ctx,
+		    "Error: Expected status value %d (%s), received %d (%s)\n",
+		    expected,
+		    cairo_status_to_string (expected),
+		    status,
+		    cairo_status_to_string (status));
+    return CAIRO_TEST_FAILURE;
+}
+
+static cairo_test_status_t
+test_surface_with_width_and_stride (const cairo_test_context_t *ctx,
+				    int width, int stride,
+				    cairo_status_t expected)
+{
+    cairo_test_status_t status;
+    cairo_surface_t *surface;
+    cairo_t *cr;
+    int len;
+    unsigned char *data;
+
+    cairo_test_log (ctx,
+		    "Creating surface with width %d and stride %d\n",
+		    width, stride);
+
+    len = stride;
+    if (len < 0)
+	len = -len;
+    data = xmalloc (len);
+
+    surface = cairo_image_surface_create_for_data (data, CAIRO_FORMAT_A8,
+						   width, 1, stride);
+    cr = cairo_create (surface);
+
+    cairo_paint (cr);
+
+    status = check_status (ctx, cairo_surface_status (surface), expected);
+    if (status)
+	goto BAIL;
+
+    status = check_status (ctx, cairo_status (cr), expected);
+    if (status)
+	goto BAIL;
+
+  BAIL:
+    cairo_destroy (cr);
+    cairo_surface_destroy (surface);
+    free (data);
+    return status;
+}
+
+static cairo_test_status_t
+draw (cairo_t *cr, int dst_width, int dst_height)
+{
+    int stride, row;
+    unsigned char *src, *dst, *mask_aligned;
+    cairo_surface_t *surface;
+
+    /* Now test actually drawing through our mask data, allocating and
+     * copying with the proper stride. */
+    stride = cairo_format_stride_for_width (CAIRO_FORMAT_A8,
+					    MASK_WIDTH);
+
+    mask_aligned = xmalloc (stride * MASK_HEIGHT);
+
+    src = mask;
+    dst = mask_aligned;
+    for (row = 0; row < MASK_HEIGHT; row++) {
+	memcpy (dst, src, MASK_WIDTH);
+	src += MASK_WIDTH;
+	dst += stride;
+    }
+
+    surface = cairo_image_surface_create_for_data (mask_aligned,
+						   CAIRO_FORMAT_A8,
+						   MASK_WIDTH,
+						   MASK_HEIGHT,
+						   stride);
+
+    /* Paint background blue */
+    cairo_set_source_rgb (cr, 0, 0, 1); /* blue */
+    cairo_paint (cr);
+
+    /* Then paint red through our mask */
+    cairo_set_source_rgb (cr, 1, 0, 0); /* red */
+    cairo_mask_surface (cr, surface, 0, 0);
+    cairo_surface_destroy (surface);
+
+    free (mask_aligned);
+
+    return CAIRO_TEST_SUCCESS;
+}
+
+static cairo_test_status_t
+preamble (cairo_test_context_t *ctx)
+{
+    cairo_test_status_t status = CAIRO_TEST_SUCCESS;
+    int test_width;
+
+    for (test_width = 0; test_width < 40; test_width++) {
+	int stride = cairo_format_stride_for_width (CAIRO_FORMAT_A8,
+						test_width);
+	cairo_status_t expected;
+
+	/* First create a surface using the width as the stride,
+	 * (most of these should fail).
+	 */
+	expected = (stride == test_width) ?
+	    CAIRO_STATUS_SUCCESS : CAIRO_STATUS_INVALID_STRIDE;
+
+	status = test_surface_with_width_and_stride (ctx,
+						     test_width,
+						     test_width,
+						     expected);
+	if (status)
+	    return status;
+
+	status = test_surface_with_width_and_stride (ctx,
+						     test_width,
+						     -test_width,
+						     expected);
+	if (status)
+	    return status;
+
+
+	/* Then create a surface using the correct stride,
+	 * (should always succeed).
+	 */
+	status = test_surface_with_width_and_stride (ctx,
+						     test_width,
+						     stride,
+						     CAIRO_STATUS_SUCCESS);
+	if (status)
+	    return status;
+
+	status = test_surface_with_width_and_stride (ctx,
+						     test_width,
+						     -stride,
+						     CAIRO_STATUS_SUCCESS);
+	if (status)
+	    return status;
+    }
+
+    return status;
+}
+
+CAIRO_TEST (a8_mask,
+	    "test masks of CAIRO_FORMAT_A8",
+	    "alpha, mask", /* keywords */
+	    NULL, /* requirements */
+	    8, 8,
+	    preamble, draw)