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diff --git a/source/mupen64plus-video-arachnoid/src/Combiner/CombinerStructs.h b/source/mupen64plus-video-arachnoid/src/Combiner/CombinerStructs.h
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+++ b/source/mupen64plus-video-arachnoid/src/Combiner/CombinerStructs.h
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+/******************************************************************************
+ * Arachnoid Graphics Plugin for Mupen64Plus
+ * http://bitbucket.org/wahrhaft/mupen64plus-video-arachnoid/
+ *
+ * Copyright (C) 2007 Kristofer Karlsson, Rickard Niklasson
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ *****************************************************************************/
+
+#ifndef COMBINER_STRUCTS_H_
+#define COMBINER_STRUCTS_H_
+
+#include "m64p.h"
+#include "OpenGL.h"
+
+// Internal combiner commands
+#define LOAD        0
+#define SUB            1
+#define MUL            2
+#define ADD            3
+#define INTERPOLATE 4
+
+// Internal generalized combiner inputs
+
+#define COMBINED        0
+#define TEXEL0          1
+#define TEXEL1          2
+#define PRIMITIVE       3
+#define SHADE           4
+#define ENVIRONMENT     5
+#define CENTER          6
+#define SCALE           7
+#define COMBINED_ALPHA  8
+#define TEXEL0_ALPHA    9
+#define TEXEL1_ALPHA    10
+#define PRIMITIVE_ALPHA 11
+#define SHADE_ALPHA     12
+#define ENV_ALPHA       13
+#define LOD_FRACTION    14
+#define PRIM_LOD_FRAC   15
+#define NOISE           16
+#define K4              17
+#define K5              18
+#define ONE             19
+#define ZERO            20
+
+//* Combiner data
+//! Defines how mux-values are coded.
+//TODO: check this size against GCC when i'm awake
+struct CombineData
+{
+    union
+    {
+        struct
+        {
+            // muxs1
+            unsigned    aA1     : 3;
+            unsigned    sbA1    : 3;
+            unsigned    aRGB1   : 3;
+            unsigned    aA0     : 3;
+            unsigned    sbA0    : 3;
+            unsigned    aRGB0   : 3;
+            unsigned    mA1     : 3;
+            unsigned    saA1    : 3;
+            unsigned    sbRGB1  : 4;
+            unsigned    sbRGB0  : 4;
+
+            // muxs0
+            unsigned    mRGB1   : 5;
+            unsigned    saRGB1  : 4;
+            unsigned    mA0     : 3;
+            unsigned    saA0    : 3;
+            unsigned    mRGB0   : 5;
+            unsigned    saRGB0  : 4;
+        };
+
+        struct
+        {
+            unsigned int    muxs1, muxs0;
+        };
+
+        unsigned long long    mux;
+    };
+};
+
+//! Combiner operation
+struct CombinerOp
+{
+    int op;
+    int param1;
+    int param2;
+    int param3;
+};
+
+//! Combiner Stage with combiner operations
+struct CombinerStage
+{
+    int numOps;
+    CombinerOp op[6];
+};
+
+//! Combiner with combiner stages
+struct Combiner
+{
+    int numStages;
+    CombinerStage stage[2];
+};
+
+//! Combiner cycle
+struct CombineCycle
+{
+    int loadValue;  //!< Load
+    int addValue;   //!< Addition
+    int subValue;   //!< Subract
+    int multValue;  //!< Multiplication
+};
+
+
+//*****************************************************************************
+//! Texture Environment Combiner Argument
+//! Difines a color source and mathimatical operation to be performed
+//*****************************************************************************
+struct TexEnvCombinerArg
+{
+    GLenum source;
+    GLenum operand;
+};
+
+//*****************************************************************************
+//! Texture Environment Combiner Stage
+//*****************************************************************************
+struct TexEnvCombinerStage
+{
+    unsigned short constant;
+    bool used;
+    GLenum combine;
+    TexEnvCombinerArg arg0, arg1, arg2;
+    unsigned short outputTexture;
+};
+
+//*****************************************************************************
+//* Texture Environment Combiner 
+//! Stores information how graphics API should combine colors and set 
+//! Texture environment.
+//*****************************************************************************
+struct TexEnvCombiner
+{
+    bool usesT0, usesT1, usesNoise;
+
+    GLint mode;
+
+    unsigned short usedUnits;
+    
+    struct
+    {
+        unsigned short color, secondaryColor, alpha;
+    } vertex;
+
+    TexEnvCombinerStage color[8];
+    TexEnvCombinerStage alpha[8];
+};
+
+#endif