Added initial iteration of shaderc

test/TestUtils.cpp

@@ -0,0 +1,27 @@
+
+#include <iostream>
+#include <vector>
+
+#include <shaderc/shaderc.hpp>
+
+static std::vector<uint32_t> spirv_from_string(const std::string& source,
+                                   shaderc_optimization_level optimization = shaderc_optimization_level_size,
+                                   std::vector<std::pair<std::string,std::string>> definitions = {}) {
+  shaderc::Compiler compiler;
+  shaderc::CompileOptions options;
+
+  for (const std::pair<std::string,std::string>& def : definitions) {
+      options.AddMacroDefinition(def.first, def.second);
+  }
+  if (optimization) options.SetOptimizationLevel(optimization);
+
+  std::string errorTag = "kompute";
+  shaderc::SpvCompilationResult module =
+      compiler.CompileGlslToSpv(source, shaderc_glsl_default_compute_shader, errorTag.c_str(), options);
+
+  if (module.GetCompilationStatus() != shaderc_compilation_status_success)  {
+    throw std::runtime_error("Shader string invalid: " + module.GetErrorMessage());
+  }
+
+  return {module.cbegin(), module.cend()};
+}