virgl/vtest: add vtest driver

virgl/vtest is a swrast driver that allows the
virgl acceleration to be tested without having
a virtual machine.

The backend has a unix socket server that
this connects to.

This is run by setting
LIBGL_ALWAYS_SOFTWARE=y
GALLIUM_DRIVER=virpipe

In this mode all renderering is sent over
a socket to the remote renderer, and the
results are readback and copies to the screen
using drisw. This works well enough to develop
new features and to help debug.

Signed-off-by: Dave Airlie <[email protected]>

1 files changed, 12 insertions, 0 deletions

diff --git a/src/gallium/auxiliary/target-helpers/inline_sw_helper.h b/src/gallium/auxiliary/target-helpers/inline_sw_helper.h
index 5f46552f6c3..f3693fb1f39 100644
--- a/src/gallium/auxiliary/target-helpers/inline_sw_helper.h
+++ b/src/gallium/auxiliary/target-helpers/inline_sw_helper.h
@@ -19,6 +19,10 @@
 #include "llvmpipe/lp_public.h"
 #endif
 
+#ifdef GALLIUM_VIRGL
+#include "virgl/virgl_public.h"
+#include "virgl/vtest/virgl_vtest_public.h"
+#endif
 
 static inline struct pipe_screen *
 sw_screen_create_named(struct sw_winsys *winsys, const char *driver)
@@ -30,6 +34,14 @@ sw_screen_create_named(struct sw_winsys *winsys, const char *driver)
       screen = llvmpipe_create_screen(winsys);
 #endif
 
+#if defined(GALLIUM_VIRGL)
+   if (screen == NULL && strcmp(driver, "virpipe") == 0) {
+      struct virgl_winsys *vws;
+      vws = virgl_vtest_winsys_wrap(winsys);
+      screen = virgl_create_screen(vws);
+   }
+#endif
+
 #if defined(GALLIUM_SOFTPIPE)
    if (screen == NULL)
       screen = softpipe_create_screen(winsys);