1 files changed, 102 insertions, 0 deletions
diff --git a/test/basic-copyarea-size.c b/test/basic-copyarea-size.c
new file mode 100644
index 00000000..3c4249e3
--- /dev/null
+++ b/test/basic-copyarea-size.c
@@ -0,0 +1,102 @@
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <X11/Xutil.h> /* for XDestroyImage */
+
+#include "test.h"
+
+#define SIZE 20000
+struct draw {
+	Pixmap a, b;
+	GC gc;
+	XRenderPictFormat *format;
+};
+
+static void target_init(struct test_display *t, struct draw *tt, int size)
+{
+	XGCValues val;
+
+	tt->a = XCreatePixmap(t->dpy, DefaultRootWindow(t->dpy),
+			      size, size, 32);
+	tt->b = XCreatePixmap(t->dpy, DefaultRootWindow(t->dpy),
+			      size, size, 32);
+
+	val.graphics_exposures = 0;
+	tt->gc = XCreateGC(t->dpy, tt->a, GCGraphicsExposures, &val);
+
+	tt->format = XRenderFindStandardFormat(t->dpy, PictStandardARGB32);
+
+	val.foreground = 0xffff0000;
+	XChangeGC(t->dpy, tt->gc, GCForeground, &val);
+	XFillRectangle(t->dpy, tt->a, tt->gc, 0, 0, size, size);
+
+	val.foreground = 0xff0000ff;
+	XChangeGC(t->dpy, tt->gc, GCForeground, &val);
+	XFillRectangle(t->dpy, tt->b, tt->gc, 0, 0, size, size);
+}
+
+static void target_fini(struct test_display *t, struct draw *tt)
+{
+	XFreePixmap(t->dpy, tt->a);
+	XFreePixmap(t->dpy, tt->b);
+}
+
+int main(int argc, char **argv)
+{
+	struct test test;
+	struct draw real, ref;
+	int size, i;
+
+	test_init(&test, argc, argv);
+
+	/* Copy back and forth betwenn two pixmaps, gradually getting larger */
+	for (size = 1; size <= SIZE; size = (size * 3 + 1) / 2) {
+		target_init(&test.real, &real, size);
+		target_init(&test.ref, &ref, size);
+
+		printf("size=%d\n", size);
+		for (i = 0; i <= DEFAULT_ITERATIONS; i++) {
+			int reps = 1 << i;
+			do {
+				int sx = rand() % (2*size) - size;
+				int sy = rand() % (2*size) - size;
+
+				int dx = rand() % (2*size) - size;
+				int dy = rand() % (2*size) - size;
+
+				int order = rand() & 1;
+
+				XCopyArea(test.real.dpy,
+					  order ? real.a : real.b,
+					  (!order) ? real.a : real.b,
+					  real.gc,
+					  sx, sy,
+					  size, size,
+					  dx, dy);
+
+				XCopyArea(test.ref.dpy,
+					  order ? ref.a : ref.b,
+					  (!order) ? ref.a : ref.b,
+					  ref.gc,
+					  sx, sy,
+					  size, size,
+					  dx, dy);
+			} while (--reps);
+		}
+
+		test_compare(&test,
+			     real.a, real.format,
+			     ref.a, ref.format,
+			     0, 0, size, size);
+		test_compare(&test,
+			     real.b, real.format,
+			     ref.b, ref.format,
+			     0, 0, size, size);
+
+		target_fini(&test.real, &real);
+		target_fini(&test.ref, &ref);
+	}
+
+	return 0;
+}