From a901a8540114abb17427bddbdab8b5be244b0c53 Mon Sep 17 00:00:00 2001
From: Philip Rebohle <philip.rebohle@tu-dortmund.de>
Date: Thu, 7 Dec 2017 14:01:17 +0100
Subject: [PATCH] [dxvk] Added support for vertex index types

---
 src/dxvk/dxvk_context.cpp     | 10 +++++++---
 src/dxvk/dxvk_context.h       |  4 +++-
 src/dxvk/dxvk_context_state.h |  2 ++
 3 files changed, 12 insertions(+), 4 deletions(-)

diff --git a/src/dxvk/dxvk_context.cpp b/src/dxvk/dxvk_context.cpp
index 67f2eb88..c4bc95e9 100644
--- a/src/dxvk/dxvk_context.cpp
+++ b/src/dxvk/dxvk_context.cpp
@@ -54,9 +54,13 @@ namespace dxvk {
   
   
   void DxvkContext::bindIndexBuffer(
-    const DxvkBufferBinding&    buffer) {
-    if (m_state.vi.indexBuffer != buffer) {
+    const DxvkBufferBinding&    buffer,
+          VkIndexType           indexType) {
+    if (m_state.vi.indexBuffer != buffer
+     || m_state.vi.indexType   != indexType) {
       m_state.vi.indexBuffer = buffer;
+      m_state.vi.indexType   = indexType;
+      
       m_flags.set(DxvkContextFlag::GpDirtyIndexBuffer);
     }
   }
@@ -547,7 +551,7 @@ namespace dxvk {
         m_cmd->cmdBindIndexBuffer(
           m_state.vi.indexBuffer.bufferHandle(),
           m_state.vi.indexBuffer.bufferOffset(),
-          VK_INDEX_TYPE_UINT32);
+          m_state.vi.indexType);
         m_cmd->trackResource(
           m_state.vi.indexBuffer.resource());
       }
diff --git a/src/dxvk/dxvk_context.h b/src/dxvk/dxvk_context.h
index d40c49c6..db5bcb57 100644
--- a/src/dxvk/dxvk_context.h
+++ b/src/dxvk/dxvk_context.h
@@ -60,9 +60,11 @@ namespace dxvk {
      * The index buffer will be used when
      * issuing \c drawIndexed commands.
      * \param [in] buffer New index buffer
+     * \param [in] indexType Index type
      */
     void bindIndexBuffer(
-      const DxvkBufferBinding&    buffer);
+      const DxvkBufferBinding&    buffer,
+            VkIndexType           indexType);
     
     /**
      * \brief Binds buffer as a shader resource
diff --git a/src/dxvk/dxvk_context_state.h b/src/dxvk/dxvk_context_state.h
index 4b91f8c3..e493c535 100644
--- a/src/dxvk/dxvk_context_state.h
+++ b/src/dxvk/dxvk_context_state.h
@@ -38,6 +38,8 @@ namespace dxvk {
   
   struct DxvkVertexInputState {
     DxvkBufferBinding                   indexBuffer;
+    VkIndexType                         indexType = VK_INDEX_TYPE_UINT32;
+    
     std::array<DxvkBufferBinding,
       DxvkLimits::MaxNumVertexBindings> vertexBuffers;
     std::array<uint32_t,