From 0b61901424895a940bf1db1bf05a3b23cd8a19be Mon Sep 17 00:00:00 2001
From: Philip Rebohle <philip.rebohle@tu-dortmund.de>
Date: Tue, 14 May 2019 21:21:14 +0200
Subject: [PATCH] [dxvk] Add method to swizzle clear color values

---
 src/dxvk/dxvk_util.cpp | 15 +++++++++++++++
 src/dxvk/dxvk_util.h   |  4 ++++
 2 files changed, 19 insertions(+)

diff --git a/src/dxvk/dxvk_util.cpp b/src/dxvk/dxvk_util.cpp
index 726d7acc..a600f015 100644
--- a/src/dxvk/dxvk_util.cpp
+++ b/src/dxvk/dxvk_util.cpp
@@ -150,6 +150,21 @@ namespace dxvk::util {
   }
 
 
+  VkClearColorValue swizzleClearColor(
+          VkClearColorValue           color,
+          VkComponentMapping          mapping) {
+    VkClearColorValue result;
+    auto swizzles = &mapping.r;
+
+    for (uint32_t i = 0; i < 4; i++) {
+      uint32_t index = getComponentIndex(swizzles[i], i);
+      result.uint32[i] = color.uint32[index];
+    }
+
+    return result;
+  }
+
+
   bool isBlendConstantBlendFactor(VkBlendFactor factor) {
     return factor == VK_BLEND_FACTOR_CONSTANT_COLOR
         || factor == VK_BLEND_FACTOR_CONSTANT_ALPHA
diff --git a/src/dxvk/dxvk_util.h b/src/dxvk/dxvk_util.h
index cfa6d509..cde2e8a9 100644
--- a/src/dxvk/dxvk_util.h
+++ b/src/dxvk/dxvk_util.h
@@ -223,6 +223,10 @@ namespace dxvk::util {
           VkComponentSwizzle          component,
           uint32_t                    identity);
   
+  VkClearColorValue swizzleClearColor(
+          VkClearColorValue           color,
+          VkComponentMapping          mapping);
+  
   bool isBlendConstantBlendFactor(
           VkBlendFactor               factor);