gpu: isolate tessellation analysis and SPIR-V emission

src/graphics/shader/recompiler/Tessellation.h

@@ -0,0 +1,21 @@
+#pragma once
+
+#include <cstdint>
+#include <span>
+
+namespace Libs::Graphics {
+struct ShaderTessellationInputInfo;
+}
+
+namespace Libs::Graphics::ShaderRecompiler {
+
+struct CompileOptions;
+namespace IR {
+struct Program;
+}
+
+void AnalyzeTessellationPrograms(std::span<const uint32_t> local, std::span<const uint32_t> control,
+                                 ShaderTessellationInputInfo& info);
+void LowerTessellationMemory(IR::Program& program, const CompileOptions& options);
+
+} // namespace Libs::Graphics::ShaderRecompiler