Shader recompiler: Add UBO

include/PICA/pica_frag_config.hpp

@@ -23,13 +23,11 @@ namespace PICA {
 		u32 texUnitConfig;
 		u32 texEnvUpdateBuffer;
 
-		// TODO: This should probably be a uniform
-		u32 texEnvBufferColor;
-
 		// There's 6 TEV stages, and each one is configured via 5 word-sized registers
 		std::array<u32, 5 * 6> tevConfigs;
 	};
 
+	// Config used for identifying unique fragment pipeline configurations
 	struct FragmentConfig {
 		OutputConfig outConfig;
 		TextureConfig texConfig;

include/PICA/pica_frag_uniforms.hpp

@@ -0,0 +1,18 @@
+#pragma once
+#include <array>
+#include <type_traits>
+
+#include "helpers.hpp"
+
+namespace PICA {
+	struct FragmentUniforms {
+		using vec3 = std::array<float, 3>;
+		using vec4 = std::array<float, 4>;
+		static constexpr usize tevStageCount = 6;
+
+		s32 alphaReference;
+
+		alignas(16) vec4 constantColors[tevStageCount];
+		alignas(16) vec4 tevBufferColor;
+	};
+}  // namespace PICA