SPIR-V: WIP shader compiler / optimizations / alpha test implementation

src/xenia/gpu/spirv/compiler.h

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+/**
+ ******************************************************************************
+ * Xenia : Xbox 360 Emulator Research Project                                 *
+ ******************************************************************************
+ * Copyright 2016 Ben Vanik. All rights reserved.                             *
+ * Released under the BSD license - see LICENSE in the root for more details. *
+ ******************************************************************************
+ */
+
+#ifndef XENIA_GPU_SPIRV_COMPILER_H_
+#define XENIA_GPU_SPIRV_COMPILER_H_
+
+#include "xenia/base/arena.h"
+#include "xenia/gpu/spirv/compiler_pass.h"
+
+#include "third_party/glslang-spirv/SpvBuilder.h"
+#include "third_party/spirv/GLSL.std.450.hpp11"
+
+namespace xe {
+namespace gpu {
+namespace spirv {
+
+// SPIR-V Compiler. Designed to optimize SPIR-V code before feeding it into the
+// drivers.
+class Compiler {
+ public:
+  Compiler();
+
+  void AddPass(std::unique_ptr<CompilerPass> pass);
+  void Reset();
+  bool Compile(spv::Module* module);
+
+ private:
+  std::vector<std::unique_ptr<CompilerPass>> compiler_passes_;
+};
+
+}  // namespace spirv
+}  // namespace gpu
+}  // namespace xe
+
+#endif  // XENIA_GPU_SPIRV_COMPILER_H_