[Mesa-stable] [Mesa-dev] [PATCH] egl/x11: Send invalidate to driver on copy_region path in swap_buffer

[Deepak Rawat]

Similar to swap_available path send invalidate to the driver because
egl/X11 is not watching for for server's invalidate events. The
dri2_copy_region path is trigered when server supports DRI2 version
minor 1.

Tested with piglit egl tests for regression.

V2: Move invalidate from dri2_copy_region to swap_buffer common.

Cc: <mesa-stable at lists.freedesktop.org>
Signed-off-by: Deepak Rawat <drawat at vmware.com>
Reviewed-by: Thomas Hellstrom <thellstrom at vmware.com>
---
 src/egl/drivers/dri2/platform_x11.c | 23 +++++++++++++----------
 1 file changed, 13 insertions(+), 10 deletions(-)

diff --git a/src/egl/drivers/dri2/platform_x11.c b/src/egl/drivers/dri2/platform_x11.c
index 6c287b4d06..60330b33df 100644
--- a/src/egl/drivers/dri2/platform_x11.c
+++ b/src/egl/drivers/dri2/platform_x11.c
@@ -864,19 +864,22 @@ dri2_x11_swap_buffers_msc(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *draw,
    if (draw->Type == EGL_PIXMAP_BIT || draw->Type == EGL_PBUFFER_BIT)
       return 0;
 
-   if (draw->SwapBehavior == EGL_BUFFER_PRESERVED || !dri2_dpy->swap_available)
-      return dri2_copy_region(drv, disp, draw, dri2_surf->region) ? 0 : -1;
-
-   dri2_flush_drawable_for_swapbuffers(disp, draw);
+   if (draw->SwapBehavior == EGL_BUFFER_PRESERVED || !dri2_dpy->swap_available) {
+      swap_count = dri2_copy_region(drv, disp, draw, dri2_surf->region) ? 0 : -1;
+   } else {
+      dri2_flush_drawable_for_swapbuffers(disp, draw);
 
-   cookie = xcb_dri2_swap_buffers_unchecked(dri2_dpy->conn, dri2_surf->drawable,
-                  msc_hi, msc_lo, divisor_hi, divisor_lo, remainder_hi, remainder_lo);
+      cookie = xcb_dri2_swap_buffers_unchecked(dri2_dpy->conn,
+                                               dri2_surf->drawable, msc_hi,
+                                               msc_lo, divisor_hi, divisor_lo,
+                                               remainder_hi, remainder_lo);
 
-   reply = xcb_dri2_swap_buffers_reply(dri2_dpy->conn, cookie, NULL);
+      reply = xcb_dri2_swap_buffers_reply(dri2_dpy->conn, cookie, NULL);
 
-   if (reply) {
-      swap_count = (((int64_t)reply->swap_hi) << 32) | reply->swap_lo;
-      free(reply);
+      if (reply) {
+         swap_count = (((int64_t)reply->swap_hi) << 32) | reply->swap_lo;
+         free(reply);
+      }
    }
 
    /* Since we aren't watching for the server's invalidate events like we're
-- 
2.17.0