From a22cf06968d0bbeea4784fa3bf69628a9cbf1397 Mon Sep 17 00:00:00 2001
From: Dave Airlie <airlied@redhat.com>
Date: Tue, 26 Nov 2013 10:45:26 +1000
Subject: [PATCH] worst hack of all time to qxl driver

---
 src/qxl_surface.c | 30 ++++++++++++++++++++++++++++--
 1 file changed, 28 insertions(+), 2 deletions(-)

diff --git a/src/qxl_surface.c b/src/qxl_surface.c
index 1075eae..561b416 100644
--- a/src/qxl_surface.c
+++ b/src/qxl_surface.c
@@ -759,8 +759,9 @@ qxl_surface_composite (qxl_surface_t *dest,
       qxl->bo_funcs->bo_decref(qxl, derefs[i]);
 }
 
-Bool
-qxl_surface_put_image (qxl_surface_t *dest,
+
+static Bool
+qxl_surface_put_image_for_reals (qxl_surface_t *dest,
 		       int x, int y, int width, int height,
 		       const char *src, int src_pitch)
 {
@@ -803,6 +804,31 @@ qxl_surface_put_image (qxl_surface_t *dest,
     return TRUE;
 }
 
+#define HACK_THE_PLANET 1
+Bool
+qxl_surface_put_image (qxl_surface_t *dest,
+		       int x, int y, int width, int height,
+		       const char *src, int src_pitch)
+{
+#ifdef HACK_THE_PLANET
+    Bool use_hack = FALSE;
+
+    /* worst heuristic ever - should really block the gnome-shell issue for now */
+    if (width == pixman_image_get_width(dest->host_image) && height < pixman_image_get_height(dest->host_image))
+        use_hack = TRUE;
+
+    if (use_hack) {
+        int gross = rand() % height;
+        int h2 = height - gross;
+        if (gross > 0)
+            qxl_surface_put_image_for_reals(dest, x, y, width, gross, src, src_pitch);
+        qxl_surface_put_image_for_reals(dest, x, y + gross, width, h2, src + (gross * src_pitch), src_pitch);
+        return TRUE;
+    } else
+#endif
+    return qxl_surface_put_image_for_reals(dest, x, y, width, height, src, src_pitch);
+}
+
 void
 qxl_get_formats (int bpp, SpiceSurfaceFmt *format, pixman_format_code_t *pformat)
 {
-- 
1.8.4.2