Feature/test tool shared libraries (#758)

* Remove circular reference to renderer on Vk & D3D12 DescriptorSetImpl

* Refactor Stbi image loading such that memory is correctly freed when goes out of scope.
Added Crt memory dump at termination.
Reduced erroneous reporting by scoping TestContext.

* Used capitalized acronym for STBImage to keep Tim happy.

* Split out TestReporter - to just handle reporting test results
Split out Options
Made TestContext hold options, and the reporter
Removed remaining memory leaks.

* Small optimization for rawWrite, such that it directly writes over print..

* Improve comments on TestCategorySet

* Fix typos in TestCategorySet

* Made slangc a cpp file as part of slang-test (removing need for separate project/shared library).

* * Made all test tools only available as dlls.
* Made possible to invoke test tool dll from command line

slang-test slangc [--bindir xxx] options to slangc

* Fix Visual Studio projects that are no longer needed.

1 files changed, 57 insertions, 0 deletions

diff --git a/tools/slang-test/slangc-tool.cpp b/tools/slang-test/slangc-tool.cpp
new file mode 100644
index 000000000..3085e2ab5
--- /dev/null
+++ b/tools/slang-test/slangc-tool.cpp
@@ -0,0 +1,57 @@
+// test-context.cpp
+#include "slangc-tool.h"
+
+using namespace Slang;
+
+SLANG_API void spSetCommandLineCompilerMode(SlangCompileRequest* request);
+
+static void _diagnosticCallback(char const* message, void* /*userData*/)
+{
+    auto stdError = AppContext::getStdError();
+    stdError.put(message);
+    stdError.flush();
+}
+
+SlangResult SlangCTool::innerMain(AppContext* appContext, SlangSession* session, int argc, const char*const* argv)
+{
+    SlangCompileRequest* compileRequest = spCreateCompileRequest(session);
+    spSetDiagnosticCallback(compileRequest, &_diagnosticCallback, nullptr);
+
+    spSetCommandLineCompilerMode(compileRequest);
+    // Do any app specific configuration
+    appContext->configureRequest(compileRequest);
+
+    {
+        const SlangResult res = spProcessCommandLineArguments(compileRequest, &argv[1], argc - 1);
+        if (SLANG_FAILED(res))
+        {
+            // TODO: print usage message
+            return res;
+        }
+    }
+
+    SlangResult res = SLANG_OK;
+
+#ifndef _DEBUG
+    try
+#endif
+    {
+        // Run the compiler (this will produce any diagnostics through SLANG_WRITER_TARGET_TYPE_DIAGNOSTIC).
+        res = spCompile(compileRequest);
+        // If the compilation failed, then get out of here...
+        // Turn into an internal Result -> such that return code can be used to vary result to match previous behavior
+        res = SLANG_FAILED(res) ? SLANG_E_INTERNAL_FAIL : res;
+    }
+#ifndef _DEBUG
+    catch (Exception & e)
+    {
+        AppContext::getStdOut().print("internal compiler error: %S\n", e.Message.ToWString().begin());
+        res = SLANG_FAIL;
+    }
+#endif
+
+    // Now that we are done, clean up after ourselves
+    spDestroyCompileRequest(compileRequest);
+    return res;
+}
+