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-rw-r--r--libs/cairo-1.16.0/test/get-clip.c264
1 files changed, 264 insertions, 0 deletions
diff --git a/libs/cairo-1.16.0/test/get-clip.c b/libs/cairo-1.16.0/test/get-clip.c
new file mode 100644
index 0000000..f97db3f
--- /dev/null
+++ b/libs/cairo-1.16.0/test/get-clip.c
@@ -0,0 +1,264 @@
+/*
+ * Copyright © 2006 Novell, 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
+ * Novell, Inc. not be used in advertising or publicity pertaining to
+ * distribution of the software without specific, written prior
+ * permission. Novell, Inc. makes no representations about the
+ * suitability of this software for any purpose. It is provided "as
+ * is" without express or implied warranty.
+ *
+ * NOVELL, 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: Robert O'Callahan <rocallahan@novell.com>
+ */
+
+#include "cairo-test.h"
+#include <stddef.h>
+
+static cairo_bool_t
+check_count (const cairo_test_context_t *ctx,
+ const char *message,
+ cairo_rectangle_list_t *list, int expected)
+{
+ if (list->status != CAIRO_STATUS_SUCCESS) {
+ cairo_test_log (ctx, "Error: %s; cairo_copy_clip_rectangle_list failed with \"%s\"\n",
+ message, cairo_status_to_string(list->status));
+ return 0;
+ }
+
+ if (list->num_rectangles == expected)
+ return 1;
+ cairo_test_log (ctx, "Error: %s; expected %d rectangles, got %d\n", message,
+ expected, list->num_rectangles);
+ return 0;
+}
+
+static cairo_bool_t
+check_unrepresentable (const cairo_test_context_t *ctx, const char *message, cairo_rectangle_list_t *list)
+{
+ if (list->status != CAIRO_STATUS_CLIP_NOT_REPRESENTABLE) {
+ cairo_test_log (ctx, "Error: %s; cairo_copy_clip_rectangle_list got unexpected result \"%s\"\n"
+ " (we expected CAIRO_STATUS_CLIP_NOT_REPRESENTABLE)",
+ message, cairo_status_to_string(list->status));
+ return 0;
+ }
+ return 1;
+}
+
+static cairo_bool_t
+check_rectangles_contain (const cairo_test_context_t *ctx,
+ const char *message,
+ cairo_rectangle_list_t *list,
+ double x, double y, double width, double height)
+{
+ int i;
+
+ for (i = 0; i < list->num_rectangles; ++i) {
+ if (list->rectangles[i].x == x && list->rectangles[i].y == y &&
+ list->rectangles[i].width == width && list->rectangles[i].height == height)
+ return 1;
+ }
+ cairo_test_log (ctx, "Error: %s; rectangle list does not contain rectangle %f,%f,%f,%f\n",
+ message, x, y, width, height);
+ return 0;
+}
+
+static cairo_bool_t
+check_clip_extents (const cairo_test_context_t *ctx,
+ const char *message, cairo_t *cr,
+ double x, double y, double width, double height)
+{
+ double ext_x1, ext_y1, ext_x2, ext_y2;
+ cairo_clip_extents (cr, &ext_x1, &ext_y1, &ext_x2, &ext_y2);
+ if (ext_x1 == x && ext_y1 == y && ext_x2 == x + width && ext_y2 == y + height)
+ return 1;
+ if (width == 0.0 && height == 0.0 && ext_x1 == ext_x2 && ext_y1 == ext_y2)
+ return 1;
+ cairo_test_log (ctx, "Error: %s; clip extents %f,%f,%f,%f should be %f,%f,%f,%f\n",
+ message, ext_x1, ext_y1, ext_x2 - ext_x1, ext_y2 - ext_y1,
+ x, y, width, height);
+ return 0;
+}
+
+#define SIZE 100
+
+static cairo_test_status_t
+preamble (cairo_test_context_t *ctx)
+{
+ cairo_surface_t *surface;
+ cairo_t *cr;
+ cairo_rectangle_list_t *rectangle_list;
+ const char *phase;
+ cairo_bool_t completed = 0;
+ cairo_status_t status;
+
+ surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, SIZE, SIZE);
+ cr = cairo_create (surface);
+ cairo_surface_destroy (surface);
+
+
+ /* first, test basic stuff. This should not be clipped, it should
+ return the surface rectangle. */
+ phase = "No clip set";
+ rectangle_list = cairo_copy_clip_rectangle_list (cr);
+ if (! check_count (ctx, phase, rectangle_list, 1) ||
+ ! check_clip_extents (ctx, phase, cr, 0, 0, SIZE, SIZE) ||
+ ! check_rectangles_contain (ctx, phase, rectangle_list, 0, 0, SIZE, SIZE))
+ {
+ goto FAIL;
+ }
+ cairo_rectangle_list_destroy (rectangle_list);
+
+ /* We should get the same results after applying a clip that contains the
+ existing clip. */
+ phase = "Clip beyond surface extents";
+ cairo_save (cr);
+ cairo_rectangle (cr, -10, -10, SIZE + 20 , SIZE + 20);
+ cairo_clip (cr);
+ rectangle_list = cairo_copy_clip_rectangle_list (cr);
+ if (! check_count (ctx, phase, rectangle_list, 1) ||
+ ! check_clip_extents (ctx, phase, cr, 0, 0, SIZE, SIZE) ||
+ ! check_rectangles_contain (ctx, phase, rectangle_list, 0, 0, SIZE, SIZE))
+ {
+ goto FAIL;
+ }
+ cairo_rectangle_list_destroy (rectangle_list);
+ cairo_restore (cr);
+
+ /* Test simple clip rect. */
+ phase = "Simple clip rect";
+ cairo_save (cr);
+ cairo_rectangle (cr, 10, 10, 80, 80);
+ cairo_clip (cr);
+ rectangle_list = cairo_copy_clip_rectangle_list (cr);
+ if (! check_count (ctx, phase, rectangle_list, 1) ||
+ ! check_clip_extents (ctx, phase, cr, 10, 10, 80, 80) ||
+ ! check_rectangles_contain (ctx, phase, rectangle_list, 10, 10, 80, 80))
+ {
+ goto FAIL;
+ }
+ cairo_rectangle_list_destroy (rectangle_list);
+ cairo_restore (cr);
+
+ /* Test everything clipped out. */
+ phase = "All clipped out";
+ cairo_save (cr);
+ cairo_clip (cr);
+ rectangle_list = cairo_copy_clip_rectangle_list (cr);
+ if (! check_count (ctx, phase, rectangle_list, 0) ||
+ ! check_clip_extents (ctx, phase, cr, 0, 0, 0, 0))
+ {
+ goto FAIL;
+ }
+ cairo_rectangle_list_destroy (rectangle_list);
+ cairo_restore (cr);
+
+ /* test two clip rects */
+ phase = "Two clip rects";
+ cairo_save (cr);
+ cairo_rectangle (cr, 10, 10, 10, 10);
+ cairo_rectangle (cr, 20, 20, 10, 10);
+ cairo_clip (cr);
+ cairo_rectangle (cr, 15, 15, 10, 10);
+ cairo_clip (cr);
+ rectangle_list = cairo_copy_clip_rectangle_list (cr);
+ if (! check_count (ctx, phase, rectangle_list, 2) ||
+ ! check_clip_extents (ctx, phase, cr, 15, 15, 10, 10) ||
+ ! check_rectangles_contain (ctx, phase, rectangle_list, 15, 15, 5, 5) ||
+ ! check_rectangles_contain (ctx, phase, rectangle_list, 20, 20, 5, 5))
+ {
+ goto FAIL;
+ }
+ cairo_rectangle_list_destroy (rectangle_list);
+ cairo_restore (cr);
+
+ /* test non-rectangular clip */
+ phase = "Nonrectangular clip";
+ cairo_save (cr);
+ cairo_move_to (cr, 0, 0);
+ cairo_line_to (cr, 100, 100);
+ cairo_line_to (cr, 100, 0);
+ cairo_close_path (cr);
+ cairo_clip (cr);
+ rectangle_list = cairo_copy_clip_rectangle_list (cr);
+ /* can't get this in one tight user-space rectangle */
+ if (! check_unrepresentable (ctx, phase, rectangle_list) ||
+ ! check_clip_extents (ctx, phase, cr, 0, 0, 100, 100))
+ {
+ goto FAIL;
+ }
+ cairo_rectangle_list_destroy (rectangle_list);
+ cairo_restore (cr);
+
+ phase = "User space, simple scale, getting clip with same transform";
+ cairo_save (cr);
+ cairo_scale (cr, 2, 2);
+ cairo_rectangle (cr, 5, 5, 40, 40);
+ cairo_clip (cr);
+ rectangle_list = cairo_copy_clip_rectangle_list (cr);
+ if (! check_count (ctx, phase, rectangle_list, 1) ||
+ ! check_clip_extents (ctx, phase, cr, 5, 5, 40, 40) ||
+ ! check_rectangles_contain (ctx, phase, rectangle_list, 5, 5, 40, 40))
+ {
+ goto FAIL;
+ }
+ cairo_rectangle_list_destroy (rectangle_list);
+ cairo_restore (cr);
+
+ phase = "User space, simple scale, getting clip with no transform";
+ cairo_save (cr);
+ cairo_save (cr);
+ cairo_scale (cr, 2, 2);
+ cairo_rectangle (cr, 5, 5, 40, 40);
+ cairo_restore (cr);
+ cairo_clip (cr);
+ rectangle_list = cairo_copy_clip_rectangle_list (cr);
+ if (! check_count (ctx, phase, rectangle_list, 1) ||
+ ! check_clip_extents (ctx, phase, cr, 10, 10, 80, 80) ||
+ ! check_rectangles_contain (ctx, phase, rectangle_list, 10, 10, 80, 80))
+ {
+ goto FAIL;
+ }
+ cairo_rectangle_list_destroy (rectangle_list);
+ cairo_restore (cr);
+
+ phase = "User space, rotation, getting clip with no transform";
+ cairo_save (cr);
+ cairo_save (cr);
+ cairo_rotate (cr, 12);
+ cairo_rectangle (cr, 5, 5, 40, 40);
+ cairo_restore (cr);
+ cairo_clip (cr);
+ rectangle_list = cairo_copy_clip_rectangle_list (cr);
+ if (! check_unrepresentable (ctx, phase, rectangle_list))
+ goto FAIL;
+
+ completed = 1;
+FAIL:
+ cairo_rectangle_list_destroy (rectangle_list);
+ status = cairo_status (cr);
+ cairo_destroy (cr);
+
+ if (!completed)
+ return CAIRO_TEST_FAILURE;
+
+ return cairo_test_status_from_status (ctx, status);
+}
+
+CAIRO_TEST (get_clip,
+ "Test cairo_copy_clip_rectangle_list and cairo_clip_extents",
+ "clip, extents", /* keywords */
+ NULL, /* requirements */
+ 0, 0,
+ preamble, NULL)
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