From 3b97980de0fae66b1633e65757fc6f5774d7b0b0 Mon Sep 17 00:00:00 2001
From: Chip Davis <cdavis@codeweavers.com>
Date: Wed, 12 Sep 2018 14:36:46 -0500
Subject: [PATCH] VkPhysicalDevice: Advertise the fullDrawIndexUint32 feature.

This just means the maximum index for an indexed draw is 2**32 - 1.
---
 MoltenVK/MoltenVK/GPUObjects/MVKDevice.mm | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/MoltenVK/MoltenVK/GPUObjects/MVKDevice.mm b/MoltenVK/MoltenVK/GPUObjects/MVKDevice.mm
index d43ac927..7883061a 100644
--- a/MoltenVK/MoltenVK/GPUObjects/MVKDevice.mm
+++ b/MoltenVK/MoltenVK/GPUObjects/MVKDevice.mm
@@ -478,6 +478,7 @@ void MVKPhysicalDevice::initFeatures() {
 	memset(&_features, 0, sizeof(_features));	// Start with everything cleared
 
     _features.robustBufferAccess = true;  // XXX Required by Vulkan spec
+    _features.fullDrawIndexUint32 = true;
     _features.independentBlend = true;
     _features.depthBiasClamp = true;
     _features.fillModeNonSolid = true;
@@ -522,7 +523,7 @@ void MVKPhysicalDevice::initFeatures() {
 
 //typedef struct VkPhysicalDeviceFeatures {
 //    VkBool32    robustBufferAccess;                           // done
-//    VkBool32    fullDrawIndexUint32;
+//    VkBool32    fullDrawIndexUint32;                          // done
 //    VkBool32    imageCubeArray;                               // done
 //    VkBool32    independentBlend;                             // done
 //    VkBool32    geometryShader;
@@ -732,7 +733,7 @@ void MVKPhysicalDevice::initProperties() {
     _properties.limits.maxComputeWorkGroupCount[1] = kMVKUndefinedLargeUInt32;
     _properties.limits.maxComputeWorkGroupCount[2] = kMVKUndefinedLargeUInt32;
 
-    _properties.limits.maxDrawIndexedIndexValue = numeric_limits<uint32_t>::max() - 1;
+    _properties.limits.maxDrawIndexedIndexValue = numeric_limits<uint32_t>::max();
     _properties.limits.maxDrawIndirectCount = kMVKUndefinedLargeUInt32;
 
     _properties.limits.minTexelOffset = -8;