Mesa (master): virgl/vtest: execute a transfer_get when flushing the front buffer

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Module: Mesa
Branch: master
Commit: 0dd661777a489d1134707ebc770af9e21e44e0dc
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=0dd661777a489d1134707ebc770af9e21e44e0dc

Author: Gurchetan Singh <gurchetansingh at chromium.org>
Date:   Wed Dec 12 15:43:43 2018 -0800

virgl/vtest: execute a transfer_get when flushing the front buffer

This just moves everything to a helper function -- "flush_front_buffer"
will be used later.

virgl_vtest_resource_map / virgl_vtest_resource_unmap already take
care to map the display target.

Signed-off-by: Gurchetan Singh <gurchetansingh at chromium.org>
Reviewed-By: Gert Wollny <gert.wollny at collabora.com>
Reviewed-By: Piotr Rak <p.rak at samsung.com>

---

 .../winsys/virgl/vtest/virgl_vtest_winsys.c        | 43 +++++++++++-----------
 1 file changed, 21 insertions(+), 22 deletions(-)

diff --git a/src/gallium/winsys/virgl/vtest/virgl_vtest_winsys.c b/src/gallium/winsys/virgl/vtest/virgl_vtest_winsys.c
index e3a38e00ec5..681c0c25e6b 100644
--- a/src/gallium/winsys/virgl/vtest/virgl_vtest_winsys.c
+++ b/src/gallium/winsys/virgl/vtest/virgl_vtest_winsys.c
@@ -89,11 +89,12 @@ virgl_vtest_transfer_put(struct virgl_winsys *vws,
 }
 
 static int
-virgl_vtest_transfer_get(struct virgl_winsys *vws,
-                         struct virgl_hw_res *res,
-                         const struct pipe_box *box,
-                         uint32_t stride, uint32_t layer_stride,
-                         uint32_t buf_offset, uint32_t level)
+virgl_vtest_transfer_get_internal(struct virgl_winsys *vws,
+                                  struct virgl_hw_res *res,
+                                  const struct pipe_box *box,
+                                  uint32_t stride, uint32_t layer_stride,
+                                  uint32_t buf_offset, uint32_t level,
+                                  bool flush_front_buffer)
 {
    struct virgl_vtest_winsys *vtws = virgl_vtest_winsys(vws);
    uint32_t size;
@@ -115,6 +116,18 @@ virgl_vtest_transfer_get(struct virgl_winsys *vws,
    return 0;
 }
 
+static int
+virgl_vtest_transfer_get(struct virgl_winsys *vws,
+                         struct virgl_hw_res *res,
+                         const struct pipe_box *box,
+                         uint32_t stride, uint32_t layer_stride,
+                         uint32_t buf_offset, uint32_t level)
+{
+   return virgl_vtest_transfer_get_internal(vws, res, box, stride,
+                                            layer_stride, buf_offset,
+                                            level, false);
+}
+
 static void virgl_hw_res_destroy(struct virgl_vtest_winsys *vtws,
                                  struct virgl_hw_res *res)
 {
@@ -601,9 +614,7 @@ static void virgl_vtest_flush_frontbuffer(struct virgl_winsys *vws,
 {
    struct virgl_vtest_winsys *vtws = virgl_vtest_winsys(vws);
    struct pipe_box box;
-   void *map;
-   uint32_t size;
-   uint32_t offset = 0, valid_stride;
+   uint32_t offset = 0;
    if (!res->dt)
       return;
 
@@ -620,22 +631,10 @@ static void virgl_vtest_flush_frontbuffer(struct virgl_winsys *vws,
       box.depth = 1;
    }
 
-   size = vtest_get_transfer_size(res, &box, res->stride, 0, level, &valid_stride);
-
    virgl_vtest_busy_wait(vtws, res->res_handle, VCMD_BUSY_WAIT_FLAG_WAIT);
-   map = vtws->sws->displaytarget_map(vtws->sws, res->dt, 0);
-
-   /* execute a transfer */
-   virgl_vtest_send_transfer_get(vtws, res->res_handle,
-                                 level, res->stride, 0, &box, size, offset);
-
-   /* This functions gets the resource from the hardware backend that may have
-    * a hardware imposed stride that is different from the IOV stride used to
-    * get the data. */
-   virgl_vtest_recv_transfer_get_data(vtws, map + offset, size, valid_stride,
-                                      &box, res->format);
 
-   vtws->sws->displaytarget_unmap(vtws->sws, res->dt);
+   virgl_vtest_transfer_get_internal(vws, res, &box, res->stride, 0, offset,
+                                     level, true);
 
    vtws->sws->displaytarget_display(vtws->sws, res->dt, winsys_drawable_handle,
                                     sub_box);