[PATCH v1 4/5] ui: Create sync objects only for blobs

[Vivek Kasireddy <vivek.kasireddy@intel.com>]

For now, create sync objects only for dmabufs that are blobs.

Cc: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Vivek Kasireddy <vivek.kasireddy@intel.com>
---
 hw/display/virtio-gpu-udmabuf.c |  2 ++
 include/ui/console.h            |  1 +
 include/ui/egl-helpers.h        |  1 +
 ui/gtk-egl.c                    | 10 ++++++++++
 ui/gtk-gl-area.c                |  8 ++++++++
 5 files changed, 22 insertions(+)

diff --git a/hw/display/virtio-gpu-udmabuf.c b/hw/display/virtio-gpu-udmabuf.c
index 3c01a415e7..33e329e8aa 100644
--- a/hw/display/virtio-gpu-udmabuf.c
+++ b/hw/display/virtio-gpu-udmabuf.c
@@ -185,6 +185,8 @@ static VGPUDMABuf
     dmabuf->buf.stride = fb->stride;
     dmabuf->buf.fourcc = qemu_pixman_to_drm_format(fb->format);
     dmabuf->buf.fd = res->dmabuf_fd;
+    dmabuf->buf.blob = true;
+    dmabuf->buf.sync = NULL;
 
     dmabuf->scanout_id = scanout_id;
     QTAILQ_INSERT_HEAD(&g->dmabuf.bufs, dmabuf, next);
diff --git a/include/ui/console.h b/include/ui/console.h
index a89f739f10..310d34c67a 100644
--- a/include/ui/console.h
+++ b/include/ui/console.h
@@ -170,6 +170,7 @@ typedef struct QemuDmaBuf {
     bool      y0_top;
     void      *sync;
     int       fence_fd;
+    bool      blob;
 } QemuDmaBuf;
 
 typedef struct DisplayState DisplayState;
diff --git a/include/ui/egl-helpers.h b/include/ui/egl-helpers.h
index 5a7575dc13..1bc0e31b03 100644
--- a/include/ui/egl-helpers.h
+++ b/include/ui/egl-helpers.h
@@ -19,6 +19,7 @@ typedef struct egl_fb {
     GLuint texture;
     GLuint framebuffer;
     bool delete_texture;
+    QemuDmaBuf *dmabuf;
 } egl_fb;
 
 void egl_fb_destroy(egl_fb *fb);
diff --git a/ui/gtk-egl.c b/ui/gtk-egl.c
index b671181272..b748f51b0b 100644
--- a/ui/gtk-egl.c
+++ b/ui/gtk-egl.c
@@ -209,6 +209,8 @@ void gd_egl_scanout_dmabuf(DisplayChangeListener *dcl,
                            QemuDmaBuf *dmabuf)
 {
 #ifdef CONFIG_GBM
+    VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl);
+
     egl_dmabuf_import_texture(dmabuf);
     if (!dmabuf->texture) {
         return;
@@ -217,6 +219,10 @@ void gd_egl_scanout_dmabuf(DisplayChangeListener *dcl,
     gd_egl_scanout_texture(dcl, dmabuf->texture,
                            false, dmabuf->width, dmabuf->height,
                            0, 0, dmabuf->width, dmabuf->height);
+
+    if (dmabuf->blob) {
+        vc->gfx.guest_fb.dmabuf = dmabuf;
+    }
 #endif
 }
 
@@ -281,6 +287,10 @@ void gd_egl_scanout_flush(DisplayChangeListener *dcl,
         egl_fb_blit(&vc->gfx.win_fb, &vc->gfx.guest_fb, !vc->gfx.y0_top);
     }
 
+    if (vc->gfx.guest_fb.dmabuf) {
+        egl_dmabuf_create_sync(vc->gfx.guest_fb.dmabuf);
+    }
+
     eglSwapBuffers(qemu_egl_display, vc->gfx.esurface);
 }
 
diff --git a/ui/gtk-gl-area.c b/ui/gtk-gl-area.c
index dd5783fec7..94f3b87c42 100644
--- a/ui/gtk-gl-area.c
+++ b/ui/gtk-gl-area.c
@@ -71,6 +71,10 @@ void gd_gl_area_draw(VirtualConsole *vc)
         surface_gl_render_texture(vc->gfx.gls, vc->gfx.ds);
     }
 
+    if (vc->gfx.guest_fb.dmabuf) {
+        egl_dmabuf_create_sync(vc->gfx.guest_fb.dmabuf);
+    }
+
     glFlush();
     graphic_hw_gl_flushed(vc->gfx.dcl.con);
 }
@@ -231,6 +235,10 @@ void gd_gl_area_scanout_dmabuf(DisplayChangeListener *dcl,
     gd_gl_area_scanout_texture(dcl, dmabuf->texture,
                                false, dmabuf->width, dmabuf->height,
                                0, 0, dmabuf->width, dmabuf->height);
+
+    if (dmabuf->blob) {
+        vc->gfx.guest_fb.dmabuf = dmabuf;
+    }
 #endif
 }
 
-- 
2.30.2