Update to latest version of SPIRV-Cross.

Track version of spvAux buffer struct in SPRIV-Cross and
fail build if different than version expected by MoltenVK.
Update MoltenVK version to 1.0.33.
Update What's New document.

Docs/Whats_New.md

@@ -13,6 +13,27 @@ For best results, use a Markdown reader.*
 
 
 
+MoltenVK 1.0.33
+---------------
+
+Released TBD
+
+- Support the `VK_EXT_memory_budget` extension.
+- Use the `MTLDevice registryID` property to locate it in `IOKit`.
+- Add GPU device ID for *iOS A12* SoC.
+- Allow logging level to be controlled with `MVK_LOG_LEVEL` runtime environment variable.
+- Don't warn on identity swizzles when `fullImageViewSwizzle` config setting is enabled.
+- Track version of spvAux buffer struct in SPRIV-Cross and fail build if different
+  than version expected by MoltenVK.
+- Modify README.md to direct developers to Vulkan SDK.
+- Update to latest SPIRV-Cross version:
+	- MSL: Implement 8-bit part of VK_KHR_shader_float16_int8.
+	- MSL: Add a setting to capture vertex shader output to a buffer.
+	- MSL: Stop passing the aux buffer around.
+	- Support LUTs in single-function CFGs on Private storage class.
+
+
+
 MoltenVK 1.0.32
 ---------------
 

ExternalRevisions/SPIRV-Cross_repo_revision

@@ -1 +1 @@
-a029d3faa12082bb4fac78351701d832716759df
+d9ed3dcc7a7e62e5f95fd8f24e3d35e7e402ae92

MoltenVK/MoltenVK/API/vk_mvk_moltenvk.h

@@ -48,7 +48,7 @@ extern "C" {
  */
 #define MVK_VERSION_MAJOR   1
 #define MVK_VERSION_MINOR   0
-#define MVK_VERSION_PATCH   32
+#define MVK_VERSION_PATCH   33
 
 #define MVK_MAKE_VERSION(major, minor, patch)    (((major) * 10000) + ((minor) * 100) + (patch))
 #define MVK_VERSION     MVK_MAKE_VERSION(MVK_VERSION_MAJOR, MVK_VERSION_MINOR, MVK_VERSION_PATCH)

MoltenVKShaderConverter/MoltenVKSPIRVToMSLConverter/SPIRVToMSLConverter.cpp

@@ -27,6 +27,12 @@
 using namespace mvk;
 using namespace std;
 
+// Verify that the spvAux structure used to pass auxilliary info between MoltenVK and SPIRV-Cross has not changed.
+#define MVK_SUPPORTED_MSL_AUX_BUFFER_STRUCT_VERSION		1
+#if MVK_SUPPORTED_MSL_AUX_BUFFER_STRUCT_VERSION != SPIRV_CROSS_MSL_AUX_BUFFER_STRUCT_VERSION
+#	error "The version number of the MSL spvAux struct used to pass auxilliary info to shaders does not match between MoltenVK and SPIRV-Cross. If the spvAux struct definition is not the same between MoltenVK and shaders created by SPRIV-Cross, memory errors will occur."
+#endif
+
 
 #pragma mark -
 #pragma mark SPIRVToMSLConverterContext