add cairo

1 files changed, 314 insertions, 0 deletions

diff --git a/libs/cairo-1.16.0/test/copy-path.c b/libs/cairo-1.16.0/test/copy-path.c
new file mode 100644
index 0000000..25823b6
--- /dev/null
+++ b/libs/cairo-1.16.0/test/copy-path.c
@@ -0,0 +1,314 @@
+/*
+ * Copyright © 2005 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 <cworth@cworth.org>
+ */
+
+#include "cairo-test.h"
+#include <stdlib.h>
+
+static void
+scale_by_two (double *x, double *y)
+{
+    *x = *x * 2.0;
+    *y = *y * 2.0;
+}
+
+typedef void (*munge_func_t) (double *x, double *y);
+
+static void
+munge_and_set_path (cairo_t	 *cr,
+		    cairo_path_t *path,
+		    munge_func_t  munge)
+{
+    int i;
+    cairo_path_data_t *p;
+    double x1, y1, x2, y2, x3, y3;
+
+    if (path->status) {
+	cairo_append_path (cr, path);
+	return;
+    }
+
+    for (i=0; i < path->num_data; i += path->data[i].header.length) {
+	p = &path->data[i];
+	switch (p->header.type) {
+	case CAIRO_PATH_MOVE_TO:
+	    x1 = p[1].point.x; y1 = p[1].point.y;
+	    (munge) (&x1, &y1);
+	    cairo_move_to (cr, x1, y1);
+	    break;
+	case CAIRO_PATH_LINE_TO:
+	    x1 = p[1].point.x; y1 = p[1].point.y;
+	    (munge) (&x1, &y1);
+	    cairo_line_to (cr, x1, y1);
+	    break;
+	case CAIRO_PATH_CURVE_TO:
+	    x1 = p[1].point.x; y1 = p[1].point.y;
+	    x2 = p[2].point.x; y2 = p[2].point.y;
+	    x3 = p[3].point.x; y3 = p[3].point.y;
+	    (munge) (&x1, &y1);
+	    (munge) (&x2, &y2);
+	    (munge) (&x3, &y3);
+	    cairo_curve_to (cr,
+			    x1, y1,
+			    x2, y2,
+			    x3, y3);
+	    break;
+	case CAIRO_PATH_CLOSE_PATH:
+	    cairo_close_path (cr);
+	    break;
+	}
+    }
+}
+
+static void
+make_path (cairo_t *cr)
+{
+    cairo_rectangle (cr, 0, 0, 5, 5);
+    cairo_move_to (cr, 15, 2.5);
+    cairo_arc (cr, 12.5, 2.5, 2.5, 0, 2 * M_PI);
+}
+
+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_path_t *path;
+    cairo_t *cr_error;
+
+    /* Ensure that calling cairo_copy_path on an in-error cairo_t will
+     * propagate the error. */
+    cr_error = cairo_create (NULL);
+    path = cairo_copy_path (cr_error);
+    if (path->status != CAIRO_STATUS_NULL_POINTER) {
+	cairo_test_log (ctx,
+			"Error: cairo_copy_path returned status of %s rather than propagating %s\n",
+			cairo_status_to_string (path->status),
+			cairo_status_to_string (CAIRO_STATUS_NULL_POINTER));
+	cairo_path_destroy (path);
+	cairo_destroy (cr_error);
+	return CAIRO_TEST_FAILURE;
+    }
+    cairo_path_destroy (path);
+
+    path = cairo_copy_path_flat (cr_error);
+    if (path->status != CAIRO_STATUS_NULL_POINTER) {
+	cairo_test_log (ctx,
+			"Error: cairo_copy_path_flat returned status of %s rather than propagating %s\n",
+			cairo_status_to_string (path->status),
+			cairo_status_to_string (CAIRO_STATUS_NULL_POINTER));
+	cairo_path_destroy (path);
+	cairo_destroy (cr_error);
+	return CAIRO_TEST_FAILURE;
+    }
+    cairo_path_destroy (path);
+
+    cairo_destroy (cr_error);
+
+    /* first check that we can copy an empty path */
+    cairo_new_path (cr);
+    path = cairo_copy_path (cr);
+    if (path->status != CAIRO_STATUS_SUCCESS) {
+	cairo_status_t status = path->status;
+	cairo_test_log (ctx,
+			"Error: cairo_copy_path returned status of %s\n",
+			cairo_status_to_string (status));
+	cairo_path_destroy (path);
+	return cairo_test_status_from_status (ctx, status);
+    }
+    if (path->num_data != 0) {
+	cairo_test_log (ctx,
+			"Error: cairo_copy_path did not copy an empty path, returned path contains %d elements\n",
+		        path->num_data);
+	cairo_path_destroy (path);
+	return CAIRO_TEST_FAILURE;
+    }
+    cairo_append_path (cr, path);
+    cairo_path_destroy (path);
+    if (cairo_status (cr) != CAIRO_STATUS_SUCCESS) {
+	cairo_test_log (ctx,
+			"Error: cairo_append_path failed with a copy of an empty path, returned status of %s\n",
+			cairo_status_to_string (cairo_status (cr)));
+	return cairo_test_status_from_status (ctx, cairo_status (cr));
+    }
+
+    /* We draw in the default black, so paint white first. */
+    cairo_save (cr);
+    cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); /* white */
+    cairo_paint (cr);
+    cairo_restore (cr);
+
+    /* copy path, munge, and fill */
+    cairo_translate (cr, 5, 5);
+    make_path (cr);
+    path = cairo_copy_path (cr);
+
+    cairo_new_path (cr);
+    munge_and_set_path (cr, path, scale_by_two);
+    cairo_path_destroy (path);
+    cairo_fill (cr);
+
+    /* copy flattened path, munge, and fill */
+    cairo_translate (cr, 0, 15);
+    make_path (cr);
+    path = cairo_copy_path_flat (cr);
+
+    cairo_new_path (cr);
+    munge_and_set_path (cr, path, scale_by_two);
+    cairo_path_destroy (path);
+    cairo_fill (cr);
+
+    /* append two copies of path, and fill */
+    cairo_translate (cr, 0, 15);
+    cairo_scale (cr, 2.0, 2.0);
+    make_path (cr);
+    path = cairo_copy_path (cr);
+
+    cairo_new_path (cr);
+    cairo_append_path (cr, path);
+    cairo_translate (cr, 2.5, 2.5);
+    cairo_append_path (cr, path);
+
+    cairo_set_fill_rule (cr, CAIRO_FILL_RULE_EVEN_ODD);
+    cairo_fill (cr);
+
+    cairo_path_destroy (path);
+
+    return CAIRO_TEST_SUCCESS;
+}
+
+static cairo_test_status_t
+preamble (cairo_test_context_t *ctx)
+{
+    cairo_t *cr;
+    cairo_path_data_t data;
+    cairo_path_t path;
+    cairo_surface_t *surface;
+    cairo_status_t status;
+
+    surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, 1, 1);
+    status = cairo_surface_status (surface);
+    if (status) {
+	cairo_surface_destroy (surface);
+	return cairo_test_status_from_status (ctx, status);
+    }
+
+    /* Test a few error cases for cairo_append_path_data */
+#define CAIRO_CREATE() do {\
+    cr = cairo_create (surface); \
+    status = cairo_status (cr); \
+    if (status) { \
+	cairo_destroy (cr); \
+	cairo_surface_destroy (surface); \
+	return cairo_test_status_from_status (ctx, status); \
+    } \
+} while (0)
+    CAIRO_CREATE ();
+    cairo_append_path (cr, NULL);
+    status = cairo_status (cr);
+    cairo_destroy (cr);
+    if (status != CAIRO_STATUS_NULL_POINTER) {
+	cairo_surface_destroy (surface);
+	return cairo_test_status_from_status (ctx, status);
+    }
+
+    CAIRO_CREATE ();
+    path.status = -1;
+    cairo_append_path (cr, &path);
+    status = cairo_status (cr);
+    cairo_destroy (cr);
+    if (status != CAIRO_STATUS_INVALID_STATUS) {
+	cairo_surface_destroy (surface);
+	return cairo_test_status_from_status (ctx, status);
+    }
+
+    CAIRO_CREATE ();
+    path.status = CAIRO_STATUS_NO_MEMORY;
+    cairo_append_path (cr, &path);
+    status = cairo_status (cr);
+    cairo_destroy (cr);
+    if (status != CAIRO_STATUS_NO_MEMORY) {
+	cairo_surface_destroy (surface);
+	return cairo_test_status_from_status (ctx, status);
+    }
+
+    CAIRO_CREATE ();
+    path.data = NULL;
+    path.num_data = 0;
+    path.status = CAIRO_STATUS_SUCCESS;
+    cairo_append_path (cr, &path);
+    status = cairo_status (cr);
+    cairo_destroy (cr);
+    if (status != CAIRO_STATUS_SUCCESS) {
+	cairo_surface_destroy (surface);
+	return cairo_test_status_from_status (ctx, status);
+    }
+
+    CAIRO_CREATE ();
+    path.data = NULL;
+    path.num_data = 1;
+    path.status = CAIRO_STATUS_SUCCESS;
+    cairo_append_path (cr, &path);
+    status = cairo_status (cr);
+    cairo_destroy (cr);
+    if (status != CAIRO_STATUS_NULL_POINTER) {
+	cairo_surface_destroy (surface);
+	return cairo_test_status_from_status (ctx, status);
+    }
+
+    CAIRO_CREATE ();
+    /* Intentionally insert bogus header.length value (otherwise would be 2) */
+    data.header.type = CAIRO_PATH_MOVE_TO;
+    data.header.length = 1;
+    path.data = &data;
+    path.num_data = 1;
+    cairo_append_path (cr, &path);
+    status = cairo_status (cr);
+    cairo_destroy (cr);
+    if (status != CAIRO_STATUS_INVALID_PATH_DATA) {
+	cairo_surface_destroy (surface);
+	return cairo_test_status_from_status (ctx, status);
+    }
+
+    /* And test the degnerate case */
+    CAIRO_CREATE ();
+    path.num_data = 0;
+    cairo_append_path (cr, &path);
+    status = cairo_status (cr);
+    cairo_destroy (cr);
+    if (status != CAIRO_STATUS_SUCCESS) {
+	cairo_surface_destroy (surface);
+	return cairo_test_status_from_status (ctx, status);
+    }
+
+    cairo_surface_destroy (surface);
+
+    return CAIRO_TEST_SUCCESS;
+}
+
+CAIRO_TEST (copy_path,
+	    "Tests calls to path_data functions: cairo_copy_path, cairo_copy_path_flat, and cairo_append_path",
+	    "path", /* keywords */
+	    NULL, /* requirements */
+	    45, 53,
+	    preamble, draw)