[hud] Add option to show DXVK version

General idea based on PR #490. Closes #488.

README.md

@@ -74,6 +74,7 @@ The `DXVK_HUD` environment variable controls a HUD which can display the framera
 - `drawcalls`: Shows the number of draw calls and render passes per frame.
 - `pipelines`: Shows the total number of graphics and compute pipelines.
 - `memory`: Shows the amount of device memory allocated and used.
+- `version`: Shows DXVK version.
 
 Additionally, `DXVK_HUD=1` has the same effect as `DXVK_HUD=devinfo,fps`.
 

src/dxvk/hud/dxvk_hud.cpp

@@ -1,6 +1,7 @@
-#include "dxvk_hud.h"
-
 #include <cstring>
+#include <version.h>
+
+#include "dxvk_hud.h"
 
 namespace dxvk::hud {
   
@@ -83,6 +84,14 @@ namespace dxvk::hud {
   void Hud::renderHudElements(const Rc<DxvkContext>& ctx) {
     HudPos position = { 8.0f, 24.0f };
     
+    if (m_config.elements.test(HudElement::DxvkVersion)) {
+      m_renderer.drawText(ctx, 16.0f,
+        { position.x, position.y },
+        { 1.0f, 1.0f, 1.0f, 1.0f },
+        "DXVK " DXVK_VERSION);
+      position.y += 24.0f;
+    }
+
     if (m_config.elements.test(HudElement::DeviceInfo)) {
       position = m_hudDeviceInfo.render(
         ctx, m_renderer, position);

src/dxvk/hud/dxvk_hud_config.cpp

@@ -12,6 +12,7 @@ namespace dxvk::hud {
     { "submissions",  HudElement::StatSubmissions   },
     { "pipelines",    HudElement::StatPipelines     },
     { "memory",       HudElement::StatMemory        },
+    { "version",      HudElement::DxvkVersion       },
   }};
   
   

src/dxvk/hud/dxvk_hud_config.h

@@ -18,6 +18,7 @@ namespace dxvk::hud {
     StatSubmissions   = 4,
     StatPipelines     = 5,
     StatMemory        = 6,
+    DxvkVersion       = 7,
   };
   
   using HudElements = Flags<HudElement>;