1 files changed, 115 insertions, 0 deletions
diff --git a/test/render-copyarea-size.c b/test/render-copyarea-size.c
new file mode 100644
index 00000000..89d1ed31
--- /dev/null
+++ b/test/render-copyarea-size.c
@@ -0,0 +1,115 @@
+#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;
+	Picture pa, pb;
+	GC gc;
+	XRenderPictFormat *format;
+};
+
+static void target_init(struct test_display *t, struct draw *tt, int size)
+{
+	XRenderColor color;
+
+	tt->format = XRenderFindStandardFormat(t->dpy, PictStandardARGB32);
+
+	tt->a = XCreatePixmap(t->dpy, DefaultRootWindow(t->dpy),
+			      size, size, tt->format->depth);
+	tt->pa = XRenderCreatePicture(t->dpy, tt->a, tt->format, 0, NULL);
+
+	color.alpha = 0xffff;
+	color.red = 0xffff;
+	color.green = 0;
+	color.blue = 0;
+	XRenderFillRectangle(t->dpy, PictOpSrc, tt->pa, &color, 0, 0, size, size);
+
+	tt->b = XCreatePixmap(t->dpy, DefaultRootWindow(t->dpy),
+			      size, size, tt->format->depth);
+	tt->pb = XRenderCreatePicture(t->dpy, tt->b, tt->format, 0, NULL);
+
+	color.alpha = 0xffff;
+	color.red = 0;
+	color.green = 0;
+	color.blue = 0xffff;
+	XRenderFillRectangle(t->dpy, PictOpSrc, tt->pb, &color, 0, 0, size, size);
+}
+
+static void target_fini(struct test_display *t, struct draw *tt)
+{
+	XRenderFreePicture(t->dpy, tt->pa);
+	XFreePixmap(t->dpy, tt->a);
+
+	XRenderFreePicture(t->dpy, tt->pb);
+	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 w = rand() % size;
+				int h = rand() % size;
+
+				int order = rand() & 1;
+
+				XRenderComposite(test.real.dpy, PictOpSrc,
+						 order ? real.pa : real.pb,
+						 0,
+						 (!order) ? real.pa : real.pb,
+						 sx, sy,
+						 0, 0,
+						 dx, dy,
+						 w, h);
+
+				XRenderComposite(test.ref.dpy, PictOpSrc,
+						 order ? ref.pa : ref.pb,
+						 0,
+						 (!order) ? ref.pa : ref.pb,
+						 sx, sy,
+						 0, 0,
+						 dx, dy,
+						 w, h);
+			} 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;
+}