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From c4428fd886ca344fb77a684028e181236873b05e Mon Sep 17 00:00:00 2001
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From: Alon Levy <alevy@redhat.com>
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Date: Wed, 28 Aug 2013 16:14:16 +0300
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Subject: [PATCH 2/2] gtk/channel-cursor: copy spicec hack, RHBZ #998529
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flip -> unsupported by x11, since XCreatePixmapCursor has no invert
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functionality, only a mask, shape, background and foreground colors. Use
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this checkerboard hack to get some contrast for cursors in the guest
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that relied on invert for the same contrast.
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---
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gtk/channel-cursor.c | 23 ++++++++++++++++++-----
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1 file changed, 18 insertions(+), 5 deletions(-)
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diff --git a/gtk/channel-cursor.c b/gtk/channel-cursor.c
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index 41ad696..e4a996b 100644
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--- a/gtk/channel-cursor.c
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+++ b/gtk/channel-cursor.c
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@@ -259,11 +259,24 @@ static void mono_cursor(display_cursor *cursor, const guint8 *data)
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for (x = 0; x < cursor->hdr.width; x++, dest += 4) {
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if (and[x/8] & bit) {
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if (xor[x/8] & bit) {
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- /* flip -> hmm? */
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- dest[0] = 0x00;
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- dest[1] = 0x00;
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- dest[2] = 0x00;
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- dest[3] = 0x80;
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+ /*
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+ * flip -> unsupported by x11, since XCreatePixmapCursor has
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+ * no invert functionality, only a mask, shape, background and
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+ * foreground colors. Use this checkerboard hack to get some
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+ * contrast for cursors in the guest that relied on invert for
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+ * the same contrast.
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+ */
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+ if ((x ^ y) & 1) {
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+ dest[0] = 0x30;
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+ dest[1] = 0x30;
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+ dest[2] = 0x30;
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+ dest[3] = 0xc0;
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+ } else {
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+ dest[0] = 0x50;
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+ dest[1] = 0x50;
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+ dest[2] = 0x50;
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+ dest[3] = 0x30;
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+ }
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} else {
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/* unchanged -> transparent */
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dest[0] = 0x00;
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--
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1.8.3.1
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