Refactor shader cache (#2558)

* Fix a bug in Path::find

* Fix code formatting

* Fix LockFile and add LockFileGuard

* Add PersistentCache and unit test

* Replace file path dependency list with source file dependency list

* Add note on ordering in Module/FileDependencyList

* Remove old shader cache code

* Refactor shader cache implementation

* Temporarily skip unit tests reading/writing files

* Fix warning

* Reenable lock file test

* Rename shader cache tests and disable crashing test

* Testing

* Stop using Path::getCanonical

* Fix persistent cache lock and test

* Fix threading issues

* Move adding file dependency hashes to getEntryPointHash()

* Fix handling of #include files

* Allow specifying additional search paths for gfx testing device

* Work on shader cache tests

* Update project files

* Revive shader cache graphics tests

* Split graphics pipeline test

* Fix compilation

1 files changed, 8 insertions, 4 deletions

diff --git a/tools/gfx-unit-test/gfx-test-util.cpp b/tools/gfx-unit-test/gfx-test-util.cpp
index 116b4222a..5cbb30e71 100644
--- a/tools/gfx-unit-test/gfx-test-util.cpp
+++ b/tools/gfx-unit-test/gfx-test-util.cpp
@@ -194,6 +194,7 @@ namespace gfx_test
     Slang::ComPtr<gfx::IDevice> createTestingDevice(
         UnitTestContext* context,
         Slang::RenderApiFlag::Enum api,
+        Slang::List<const char*> additionalSearchPaths,
         gfx::IDevice::ShaderCacheDesc shaderCache)
     {
         Slang::ComPtr<gfx::IDevice> device;
@@ -222,10 +223,13 @@ namespace gfx_test
             SLANG_IGNORE_TEST
         }
         deviceDesc.slang.slangGlobalSession = context->slangGlobalSession;
-        const char* searchPaths[] = { "", "../../tools/gfx-unit-test", "tools/gfx-unit-test" };
-        deviceDesc.slang.searchPathCount = (SlangInt)SLANG_COUNT_OF(searchPaths);
-        deviceDesc.slang.searchPaths = searchPaths;
-
+        Slang::List<const char*> searchPaths;
+        searchPaths.add("");
+        searchPaths.add("../../tools/gfx-unit-test");
+        searchPaths.add("tools/gfx-unit-test");
+        searchPaths.addRange(additionalSearchPaths);
+        deviceDesc.slang.searchPaths = searchPaths.getBuffer();
+        deviceDesc.slang.searchPathCount = (gfx::GfxCount)searchPaths.getCount();
         deviceDesc.shaderCache = shaderCache;
 
         gfx::D3D12DeviceExtendedDesc extDesc = {};