From eb330056e6ed21cedbb929aa7178abc12cd8b65b Mon Sep 17 00:00:00 2001
From: Chip Davis <cdavis@codeweavers.com>
Date: Tue, 16 Jul 2019 12:06:02 -0500
Subject: [PATCH] Advertise the VK_AMD_shader_image_load_store_lod extension.

iOS only for now. Metal textures on Mac don't support non-zero `lod` in
the `write()` method.
---
 MoltenVK/MoltenVK/Layers/MVKExtensions.def | 1 +
 MoltenVK/MoltenVK/Layers/MVKExtensions.mm  | 1 +
 2 files changed, 2 insertions(+)

diff --git a/MoltenVK/MoltenVK/Layers/MVKExtensions.def b/MoltenVK/MoltenVK/Layers/MVKExtensions.def
index 6f8143d2..57c8328d 100644
--- a/MoltenVK/MoltenVK/Layers/MVKExtensions.def
+++ b/MoltenVK/MoltenVK/Layers/MVKExtensions.def
@@ -69,6 +69,7 @@ MVK_EXTENSION(MVK_macos_surface, MVK_MACOS_SURFACE)
 MVK_EXTENSION(MVK_moltenvk, MVK_MOLTENVK)
 MVK_EXTENSION(AMD_gpu_shader_half_float, AMD_GPU_SHADER_HALF_FLOAT)
 MVK_EXTENSION(AMD_negative_viewport_height, AMD_NEGATIVE_VIEWPORT_HEIGHT)
+MVK_EXTENSION(AMD_shader_image_load_store_lod, AMD_SHADER_IMAGE_LOAD_STORE_LOD)
 MVK_EXTENSION(IMG_format_pvrtc, IMG_FORMAT_PVRTC)
 MVK_EXTENSION_LAST(NV_glsl_shader, NV_GLSL_SHADER)
 
diff --git a/MoltenVK/MoltenVK/Layers/MVKExtensions.mm b/MoltenVK/MoltenVK/Layers/MVKExtensions.mm
index 61431ef3..16d8e211 100644
--- a/MoltenVK/MoltenVK/Layers/MVKExtensions.mm
+++ b/MoltenVK/MoltenVK/Layers/MVKExtensions.mm
@@ -54,6 +54,7 @@ static bool mvkIsSupportedOnPlatform(VkExtensionProperties* pProperties) {
 		return mvkOSVersion() >= 10.14;
 	}
 	if (pProperties == &kVkExtProps_MVK_IOS_SURFACE) { return false; }
+	if (pProperties == &kVkExtProps_AMD_SHADER_IMAGE_LOAD_STORE_LOD) { return false; }
 	if (pProperties == &kVkExtProps_IMG_FORMAT_PVRTC) { return false; }
 #endif
 #if MVK_IOS