Upgrade to Glslang 11.0.0 (#1466)

* Fix premake5.lua so it uses the new path needed for OpenCLDebugInfo100.h

* Keep including the includes directory.

* Added the spirv-tools-generated files.

* We don't need to include the spirv/unified1 path because the files needed are actually in the spirv-tools-generated folder.

* Put the build_info.h glslang generated files in external/glslang-generated. Alter premake5.lua to pick up that header.

* First pass at documenting how to build glslang and spirv-tools.

* Improved glsl/spir-v tools README.md

* Added revision.h

* Change how gResources is calculated.
Update about revision.h

* Update docs a little.

* Split out spirv-tools into a separate project for building glslang. This was not necessary on linux, but *is* necessary on windows, because there is a file disassemble.cpp in spirv-tools and in glslang, and this leads to VS choosing only one. With the separate library, the problem is resolved.

* Fix direct-spirv-emit output.

* Update to latest version of spirv headers and spirv-tools.

* Upgrade submodule version of glslang in external.

* Add fPIC to build options of slang-spirv-tools

* Upgrade slang-binaries to have new glslang.

* Fix issues with Windows slang-glslang binaries, via update of slang-binaries used.

* Small improvements to glslang building process documentation.

Co-authored-by: Tim Foley <tfoleyNV@users.noreply.github.com>

1 files changed, 34 insertions, 14 deletions

diff --git a/source/slang-glslang/slang-glslang.cpp b/source/slang-glslang/slang-glslang.cpp
index 64680fe54..02d5a8459 100644
--- a/source/slang-glslang/slang-glslang.cpp
+++ b/source/slang-glslang/slang-glslang.cpp
@@ -41,21 +41,41 @@
 
 #define UNLIMITED 9999
 
-static TBuiltInResource gResources =
+static TBuiltInResource _calcBuiltinResources()
 {
-    UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, 
-    UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED,-UNLIMITED, UNLIMITED, UNLIMITED, 
-    UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, 
-    UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, 
-    UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, 
-    UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, 
-    UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, 
-    UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, 
-    UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, UNLIMITED, 
-    UNLIMITED, UNLIMITED,
-
-    { true, true, true, true, true, true, true, true, true, }
-};
+    // NOTE! This is a bit of a hack - to set all the fields to true/UNLIMITED.
+
+    // We are relying on limits being after the other fields. 
+    SLANG_COMPILE_TIME_ASSERT(SLANG_OFFSET_OF(TBuiltInResource, limits) > 0);
+    // We are relying on maxLights being the first parameter, and all values will have the same type
+    SLANG_COMPILE_TIME_ASSERT(SLANG_OFFSET_OF(TBuiltInResource, maxLights) == 0);
+    
+    TBuiltInResource resource;
+    // Set up all the integer values.
+    {
+        
+        auto* dst = &resource.maxLights;
+        const size_t count = SLANG_OFFSET_OF(TBuiltInResource, limits) / sizeof(*dst);
+        for (size_t i = 0; i < count; ++i)
+        {
+            dst[i] = UNLIMITED;
+        }
+    }
+    // Set up the bools
+    {
+        TLimits* limits = &resource.limits;
+        bool* dst = (bool*)limits;
+
+        const size_t count = sizeof(TLimits) / sizeof(bool);
+        for (size_t i = 0; i < count; ++i)
+        {
+            dst[i] = true;
+        }
+    }
+    return resource;
+}
+
+static TBuiltInResource gResources = _calcBuiltinResources();
 
 static void dump(
     void const*         data,