1 files changed, 60 insertions, 0 deletions

diff --git a/src/video_core/pica_state.h b/src/video_core/pica_state.h
new file mode 100644
index 000000000..c7616bc55
--- /dev/null
+++ b/src/video_core/pica_state.h
@@ -0,0 +1,60 @@
+// Copyright 2016 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include "video_core/pica.h"
+#include "video_core/primitive_assembly.h"
+#include "video_core/shader/shader.h"
+
+namespace Pica {
+
+/// Struct used to describe current Pica state
+struct State {
+    /// Pica registers
+    Regs regs;
+
+    Shader::ShaderSetup vs;
+    Shader::ShaderSetup gs;
+
+    struct {
+        union LutEntry {
+            // Used for raw access
+            u32 raw;
+
+            // LUT value, encoded as 12-bit fixed point, with 12 fraction bits
+            BitField< 0, 12, u32> value;
+
+            // Used by HW for efficient interpolation, Citra does not use these
+            BitField<12, 12, u32> difference;
+
+            float ToFloat() {
+                return static_cast<float>(value) / 4095.f;
+            }
+        };
+
+        std::array<std::array<LutEntry, 256>, 24> luts;
+    } lighting;
+
+    /// Current Pica command list
+    struct {
+        const u32* head_ptr;
+        const u32* current_ptr;
+        u32 length;
+    } cmd_list;
+
+    /// Struct used to describe immediate mode rendering state
+    struct ImmediateModeState {
+        Shader::InputVertex input;
+        // This is constructed with a dummy triangle topology
+        PrimitiveAssembler<Shader::OutputVertex> primitive_assembler;
+        int attribute_id = 0;
+
+        ImmediateModeState() : primitive_assembler(Regs::TriangleTopology::List) {}
+    } immediate;
+};
+
+extern State g_state; ///< Current Pica state
+
+} // namespace