From 93a851a2fc051efc35c82484afb41462f891121c Mon Sep 17 00:00:00 2001
From: Philip Rebohle <philip.rebohle@tu-dortmund.de>
Date: Tue, 4 Sep 2018 02:17:21 +0200
Subject: [PATCH] [d3d11] Implement DrawAuto method

---
 src/d3d11/d3d11_context.cpp | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

diff --git a/src/d3d11/d3d11_context.cpp b/src/d3d11/d3d11_context.cpp
index 7fa01bbc6..7159386be 100644
--- a/src/d3d11/d3d11_context.cpp
+++ b/src/d3d11/d3d11_context.cpp
@@ -1267,7 +1267,22 @@ namespace dxvk {
   
   
   void STDMETHODCALLTYPE D3D11DeviceContext::DrawAuto() {
-    Logger::err("D3D11DeviceContext::DrawAuto: Not implemented");
+    D3D11Buffer* buffer = m_state.ia.vertexBuffers[0].buffer.ptr();
+
+    if (buffer == nullptr)
+      return;
+    
+    DxvkBufferSlice vtxBuf = buffer->GetBufferSlice();
+    DxvkBufferSlice ctrBuf = buffer->GetSOCounter();
+
+    if (!ctrBuf.defined())
+      return;
+
+    EmitCs([=] (DxvkContext* ctx) {
+      ctx->drawIndirectXfb(ctrBuf,
+        vtxBuf.buffer()->getXfbVertexStride(),
+        0); // FIXME offset?
+    });
   }