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[PATCH 02/27] vhost-user-gpu: glFlush before notifying clients


From: marcandre . lureau
Subject: [PATCH 02/27] vhost-user-gpu: glFlush before notifying clients
Date: Fri, 12 Mar 2021 14:00:43 +0400

From: Marc-André Lureau <marcandre.lureau@redhat.com>

For similar reasons as commit 3af1671852 ("spice: flush on GL update
before notifying client"), vhost-user-gpu must ensure the GL state is
flushed before sharing its rendering result.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
---
 contrib/vhost-user-gpu/virgl.c     | 3 +++
 contrib/vhost-user-gpu/meson.build | 2 +-
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/contrib/vhost-user-gpu/virgl.c b/contrib/vhost-user-gpu/virgl.c
index 8bb3c563d9..9e6660c7ab 100644
--- a/contrib/vhost-user-gpu/virgl.c
+++ b/contrib/vhost-user-gpu/virgl.c
@@ -16,6 +16,8 @@
 #include <virglrenderer.h>
 #include "virgl.h"
 
+#include <epoxy/gl.h>
+
 void
 vg_virgl_update_cursor_data(VuGpu *g, uint32_t resource_id,
                             gpointer data)
@@ -372,6 +374,7 @@ virgl_cmd_resource_flush(VuGpu *g,
 
     VUGPU_FILL_CMD(rf);
 
+    glFlush();
     if (!rf.resource_id) {
         g_debug("bad resource id for flush..?");
         return;
diff --git a/contrib/vhost-user-gpu/meson.build 
b/contrib/vhost-user-gpu/meson.build
index 2fc2320b52..0ce1515a10 100644
--- a/contrib/vhost-user-gpu/meson.build
+++ b/contrib/vhost-user-gpu/meson.build
@@ -2,7 +2,7 @@ if 'CONFIG_TOOLS' in config_host and 'CONFIG_VIRGL' in 
config_host \
     and 'CONFIG_GBM' in config_host and 'CONFIG_LINUX' in config_host \
     and pixman.found()
   executable('vhost-user-gpu', files('vhost-user-gpu.c', 'virgl.c', 'vugbm.c'),
-             dependencies: [qemuutil, pixman, gbm, virgl, vhost_user],
+             dependencies: [qemuutil, pixman, gbm, virgl, vhost_user, opengl],
              install: true,
              install_dir: get_option('libexecdir'))
 
-- 
2.29.0




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