[PATCH v3 1/3] ui: introduce GRAPHIC_FLAGS_VK for Vulkan scanout

[Lucas Amaral <lucaaamaral@gmail.com>]

Define GRAPHIC_FLAGS_VK (bit 2) in the console flags for future
Vulkan scanout support.  The compatibility check currently returns
an error indicating the feature is not yet implemented.

This prepares the display framework for direct Vulkan scanout
alongside the existing GL and DMABUF paths.

Signed-off-by: Lucas Amaral <lucaaamaral@gmail.com>
---
 include/ui/console.h | 2 ++
 ui/console.c         | 8 ++++++++
 2 files changed, 10 insertions(+)

diff --git a/include/ui/console.h b/include/ui/console.h
index 3677a9d3..19ac06e0 100644
--- a/include/ui/console.h
+++ b/include/ui/console.h
@@ -361,6 +361,8 @@ enum {
     GRAPHIC_FLAGS_GL       = 1 << 0,
     /* require a console/display with DMABUF import */
     GRAPHIC_FLAGS_DMABUF   = 1 << 1,
+    /* TODO: require a console/display with Vulkan scanout */
+    GRAPHIC_FLAGS_VK       = 1 << 2,
 };
 
 typedef struct GraphicHwOps {
diff --git a/ui/console.c b/ui/console.c
index f445db11..d29733ad 100644
--- a/ui/console.c
+++ b/ui/console.c
@@ -594,6 +594,14 @@ static bool console_compatible_with(QemuConsole *con,
         return false;
     }
 
+    if (flags & GRAPHIC_FLAGS_VK) {
+        /* TODO: check for Vulkan scanout support in display backend */
+        error_setg(errp,
+                   "The console requires Vulkan scanout "
+                   "(not yet implemented).");
+        return false;
+    }
+
     return true;
 }
 
-- 
2.52.0