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diff --git a/source/rice_gles/src/TextureFilters_hq2x.cpp b/source/rice_gles/src/TextureFilters_hq2x.cpp
new file mode 100644
index 0000000..6774f04
--- /dev/null
+++ b/source/rice_gles/src/TextureFilters_hq2x.cpp
@@ -0,0 +1,846 @@
+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+ *   Mupen64plus - TextureFilters_hq2x.cpp                                 *
+ *   Mupen64Plus homepage: http://code.google.com/p/mupen64plus/           *
+ *   Copyright (C) 2003 MaxSt ( maxst@hiend3d.com )                        *
+ *                                                                         *
+ *   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.          *
+ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
+
+#include "typedefs.h"
+
+/************************************************************************/
+/* hq2x filters                                                         */
+/************************************************************************/
+
+/***************************************************************************/
+/* Basic types */
+
+/***************************************************************************/
+/* interpolation */
+
+static unsigned interp_bits_per_pixel;
+
+#define INTERP_16_MASK_1_3(v) ((v)&0x0F0F)
+#define INTERP_16_MASK_SHIFT_2_4(v) (((v)&0xF0F0)>>4)
+#define INTERP_16_MASK_SHIFTBACK_2_4(v) ((INTERP_16_MASK_1_3(v))<<4)
+
+static inline uint16 hq2x_interp_16_521(uint16 p1, uint16 p2, uint16 p3)
+{
+    return INTERP_16_MASK_1_3((INTERP_16_MASK_1_3(p1)*5 + INTERP_16_MASK_1_3(p2)*2 + INTERP_16_MASK_1_3(p3)*1) / 8)
+        | INTERP_16_MASK_SHIFTBACK_2_4((INTERP_16_MASK_SHIFT_2_4(p1)*5 + INTERP_16_MASK_SHIFT_2_4(p2)*2 + INTERP_16_MASK_SHIFT_2_4(p3)*1) / 8);
+}
+
+static inline uint16 hq2x_interp_16_332(uint16 p1, uint16 p2, uint16 p3)
+{
+    return INTERP_16_MASK_1_3((INTERP_16_MASK_1_3(p1)*3 + INTERP_16_MASK_1_3(p2)*3 + INTERP_16_MASK_1_3(p3)*2) / 8)
+        | INTERP_16_MASK_SHIFTBACK_2_4((INTERP_16_MASK_SHIFT_2_4(p1)*3 + INTERP_16_MASK_SHIFT_2_4(p2)*3 + INTERP_16_MASK_SHIFT_2_4(p3)*2) / 8);
+}
+
+static inline uint16 hq2x_interp_16_611(uint16 p1, uint16 p2, uint16 p3)
+{
+    return INTERP_16_MASK_1_3((INTERP_16_MASK_1_3(p1)*6 + INTERP_16_MASK_1_3(p2) + INTERP_16_MASK_1_3(p3)) / 8)
+        | INTERP_16_MASK_SHIFTBACK_2_4((INTERP_16_MASK_SHIFT_2_4(p1)*6 + INTERP_16_MASK_SHIFT_2_4(p2) + INTERP_16_MASK_SHIFT_2_4(p3)) / 8);
+}
+
+static inline uint16 hq2x_interp_16_71(uint16 p1, uint16 p2)
+{
+    return INTERP_16_MASK_1_3((INTERP_16_MASK_1_3(p1)*7 + INTERP_16_MASK_1_3(p2)) / 8)
+        | INTERP_16_MASK_SHIFTBACK_2_4((INTERP_16_MASK_SHIFT_2_4(p1)*7 + INTERP_16_MASK_SHIFT_2_4(p2)) / 8);
+}
+
+static inline uint16 hq2x_interp_16_211(uint16 p1, uint16 p2, uint16 p3)
+{
+    return INTERP_16_MASK_1_3((INTERP_16_MASK_1_3(p1)*2 + INTERP_16_MASK_1_3(p2) + INTERP_16_MASK_1_3(p3)) / 4)
+        | INTERP_16_MASK_SHIFTBACK_2_4((INTERP_16_MASK_SHIFT_2_4(p1)*2 + INTERP_16_MASK_SHIFT_2_4(p2) + INTERP_16_MASK_SHIFT_2_4(p3)) / 4);
+}
+
+static inline uint16 hq2x_interp_16_772(uint16 p1, uint16 p2, uint16 p3)
+{
+    return INTERP_16_MASK_1_3(((INTERP_16_MASK_1_3(p1) + INTERP_16_MASK_1_3(p2))*7 + INTERP_16_MASK_1_3(p3)*2) / 16)
+        | INTERP_16_MASK_SHIFTBACK_2_4(((INTERP_16_MASK_SHIFT_2_4(p1) + INTERP_16_MASK_SHIFT_2_4(p2))*7 + INTERP_16_MASK_SHIFT_2_4(p3)*2) / 16);
+}
+
+static inline uint16 hq2x_interp_16_11(uint16 p1, uint16 p2)
+{
+    return INTERP_16_MASK_1_3((INTERP_16_MASK_1_3(p1) + INTERP_16_MASK_1_3(p2)) / 2)
+        | INTERP_16_MASK_SHIFTBACK_2_4((INTERP_16_MASK_SHIFT_2_4(p1) + INTERP_16_MASK_SHIFT_2_4(p2)) / 2);
+}
+
+static inline uint16 hq2x_interp_16_31(uint16 p1, uint16 p2)
+{
+    return INTERP_16_MASK_1_3((INTERP_16_MASK_1_3(p1)*3 + INTERP_16_MASK_1_3(p2)) / 4)
+        | INTERP_16_MASK_SHIFTBACK_2_4((INTERP_16_MASK_SHIFT_2_4(p1)*3 + INTERP_16_MASK_SHIFT_2_4(p2)) / 4);
+}
+
+static inline uint16 hq2x_interp_16_1411(uint16 p1, uint16 p2, uint16 p3)
+{
+    return INTERP_16_MASK_1_3((INTERP_16_MASK_1_3(p1)*14 + INTERP_16_MASK_1_3(p2) + INTERP_16_MASK_1_3(p3)) / 16)
+        | INTERP_16_MASK_SHIFTBACK_2_4((INTERP_16_MASK_SHIFT_2_4(p1)*14 + INTERP_16_MASK_SHIFT_2_4(p2) + INTERP_16_MASK_SHIFT_2_4(p3)) / 16);
+}
+
+static inline uint16 hq2x_interp_16_431(uint16 p1, uint16 p2, uint16 p3)
+{
+    return INTERP_16_MASK_1_3((INTERP_16_MASK_1_3(p1)*4 + INTERP_16_MASK_1_3(p2)*3 + INTERP_16_MASK_1_3(p3)) / 8)
+        | INTERP_16_MASK_SHIFTBACK_2_4((INTERP_16_MASK_SHIFT_2_4(p1)*4 + INTERP_16_MASK_SHIFT_2_4(p2)*3 + INTERP_16_MASK_SHIFT_2_4(p3)) / 8);
+}
+
+static inline uint16 hq2x_interp_16_53(uint16 p1, uint16 p2)
+{
+    return INTERP_16_MASK_1_3((INTERP_16_MASK_1_3(p1)*5 + INTERP_16_MASK_1_3(p2)*3) / 8)
+        | INTERP_16_MASK_SHIFTBACK_2_4((INTERP_16_MASK_SHIFT_2_4(p1)*5 + INTERP_16_MASK_SHIFT_2_4(p2)*3) / 8);
+}
+
+static inline uint16 hq2x_interp_16_151(uint16 p1, uint16 p2)
+{
+    return INTERP_16_MASK_1_3((INTERP_16_MASK_1_3(p1)*15 + INTERP_16_MASK_1_3(p2)) / 16)
+        | INTERP_16_MASK_SHIFTBACK_2_4((INTERP_16_MASK_SHIFT_2_4(p1)*15 + INTERP_16_MASK_SHIFT_2_4(p2)) / 16);
+}
+
+static inline uint16 hq2x_interp_16_97(uint16 p1, uint16 p2)
+{
+    return INTERP_16_MASK_1_3((INTERP_16_MASK_1_3(p1)*9 + INTERP_16_MASK_1_3(p2)*7) / 16)
+        | INTERP_16_MASK_SHIFTBACK_2_4((INTERP_16_MASK_SHIFT_2_4(p1)*9 + INTERP_16_MASK_SHIFT_2_4(p2)*7) / 16);
+}
+
+#define INTERP_32_MASK_1_3(v) ((v)&0x00FF00FF)
+#define INTERP_32_MASK_SHIFT_2_4(v) (((v)&0xFF00FF00)>>8)
+#define INTERP_32_MASK_SHIFTBACK_2_4(v) (((INTERP_32_MASK_1_3(v))<<8))
+
+static inline uint32 hq2x_interp_32_521(uint32 p1, uint32 p2, uint32 p3)
+{
+    return INTERP_32_MASK_1_3((INTERP_32_MASK_1_3(p1)*5 + INTERP_32_MASK_1_3(p2)*2 + INTERP_32_MASK_1_3(p3)*1) / 8)
+        | INTERP_32_MASK_SHIFTBACK_2_4((INTERP_32_MASK_SHIFT_2_4(p1)*5 + INTERP_32_MASK_SHIFT_2_4(p2)*2 + INTERP_32_MASK_SHIFT_2_4(p3)*1) / 8);
+}
+
+static inline uint32 hq2x_interp_32_332(uint32 p1, uint32 p2, uint32 p3)
+{
+    return INTERP_32_MASK_1_3((INTERP_32_MASK_1_3(p1)*3 + INTERP_32_MASK_1_3(p2)*3 + INTERP_32_MASK_1_3(p3)*2) / 8)
+        | INTERP_32_MASK_SHIFTBACK_2_4((INTERP_32_MASK_SHIFT_2_4(p1)*3 + INTERP_32_MASK_SHIFT_2_4(p2)*3 + INTERP_32_MASK_SHIFT_2_4(p3)*2) / 8);
+}
+
+static inline uint32 hq2x_interp_32_211(uint32 p1, uint32 p2, uint32 p3)
+{
+    return INTERP_32_MASK_1_3((INTERP_32_MASK_1_3(p1)*2 + INTERP_32_MASK_1_3(p2) + INTERP_32_MASK_1_3(p3)) / 4)
+        | INTERP_32_MASK_SHIFTBACK_2_4((INTERP_32_MASK_SHIFT_2_4(p1)*2 + INTERP_32_MASK_SHIFT_2_4(p2) + INTERP_32_MASK_SHIFT_2_4(p3)) / 4);
+}
+
+static inline uint32 hq2x_interp_32_611(uint32 p1, uint32 p2, uint32 p3)
+{
+    return INTERP_32_MASK_1_3((INTERP_32_MASK_1_3(p1)*6 + INTERP_32_MASK_1_3(p2) + INTERP_32_MASK_1_3(p3)) / 8)
+        | INTERP_32_MASK_SHIFTBACK_2_4((INTERP_32_MASK_SHIFT_2_4(p1)*6 + INTERP_32_MASK_SHIFT_2_4(p2) + INTERP_32_MASK_SHIFT_2_4(p3)) / 8);
+}
+
+static inline uint32 hq2x_interp_32_71(uint32 p1, uint32 p2)
+{
+    return INTERP_32_MASK_1_3((INTERP_32_MASK_1_3(p1)*7 + INTERP_32_MASK_1_3(p2)) / 8)
+        | INTERP_32_MASK_SHIFTBACK_2_4((INTERP_32_MASK_SHIFT_2_4(p1)*7 + INTERP_32_MASK_SHIFT_2_4(p2)) / 8);
+}
+
+static inline uint32 hq2x_interp_32_772(uint32 p1, uint32 p2, uint32 p3)
+{
+    return INTERP_32_MASK_1_3(((INTERP_32_MASK_1_3(p1) + INTERP_32_MASK_1_3(p2))*7 + INTERP_32_MASK_1_3(p3)*2) / 16)
+        | INTERP_32_MASK_SHIFTBACK_2_4(((INTERP_32_MASK_SHIFT_2_4(p1) + INTERP_32_MASK_SHIFT_2_4(p2))*7 + INTERP_32_MASK_SHIFT_2_4(p3)*2) / 16);
+}
+
+static inline uint32 hq2x_interp_32_11(uint32 p1, uint32 p2)
+{
+    return INTERP_32_MASK_1_3((INTERP_32_MASK_1_3(p1) + INTERP_32_MASK_1_3(p2)) / 2)
+        | INTERP_32_MASK_SHIFTBACK_2_4((INTERP_32_MASK_SHIFT_2_4(p1) + INTERP_32_MASK_SHIFT_2_4(p2)) / 2);
+}
+
+static inline uint32 hq2x_interp_32_31(uint32 p1, uint32 p2)
+{
+    return INTERP_32_MASK_1_3((INTERP_32_MASK_1_3(p1)*3 + INTERP_32_MASK_1_3(p2)) / 4)
+        | INTERP_32_MASK_SHIFTBACK_2_4((INTERP_32_MASK_SHIFT_2_4(p1)*3 + INTERP_32_MASK_SHIFT_2_4(p2)) / 4);
+}
+
+static inline uint32 hq2x_interp_32_1411(uint32 p1, uint32 p2, uint32 p3)
+{
+    return INTERP_32_MASK_1_3((INTERP_32_MASK_1_3(p1)*14 + INTERP_32_MASK_1_3(p2) + INTERP_32_MASK_1_3(p3)) / 16)
+        | INTERP_32_MASK_SHIFTBACK_2_4((INTERP_32_MASK_SHIFT_2_4(p1)*14 + INTERP_32_MASK_SHIFT_2_4(p2) + INTERP_32_MASK_SHIFT_2_4(p3)) / 16);
+}
+
+static inline uint32 hq2x_interp_32_431(uint32 p1, uint32 p2, uint32 p3)
+{
+    return INTERP_32_MASK_1_3((INTERP_32_MASK_1_3(p1)*4 + INTERP_32_MASK_1_3(p2)*3 + INTERP_32_MASK_1_3(p3)) / 8)
+        | INTERP_32_MASK_SHIFTBACK_2_4((INTERP_32_MASK_SHIFT_2_4(p1)*4 + INTERP_32_MASK_SHIFT_2_4(p2)*3 + INTERP_32_MASK_SHIFT_2_4(p3)) / 8);
+}
+
+static inline uint32 hq2x_interp_32_53(uint32 p1, uint32 p2)
+{
+    return INTERP_32_MASK_1_3((INTERP_32_MASK_1_3(p1)*5 + INTERP_32_MASK_1_3(p2)*3) / 8)
+        | INTERP_32_MASK_SHIFTBACK_2_4((INTERP_32_MASK_SHIFT_2_4(p1)*5 + INTERP_32_MASK_SHIFT_2_4(p2)*3) / 8);
+}
+
+static inline uint32 hq2x_interp_32_151(uint32 p1, uint32 p2)
+{
+    return INTERP_32_MASK_1_3((INTERP_32_MASK_1_3(p1)*15 + INTERP_32_MASK_1_3(p2)) / 16)
+        | INTERP_32_MASK_SHIFTBACK_2_4((INTERP_32_MASK_SHIFT_2_4(p1)*15 + INTERP_32_MASK_SHIFT_2_4(p2)) / 16);
+}
+
+static inline uint32 hq2x_interp_32_97(uint32 p1, uint32 p2)
+{
+    return INTERP_32_MASK_1_3((INTERP_32_MASK_1_3(p1)*9 + INTERP_32_MASK_1_3(p2)*7) / 16)
+        | INTERP_32_MASK_SHIFTBACK_2_4((INTERP_32_MASK_SHIFT_2_4(p1)*9 + INTERP_32_MASK_SHIFT_2_4(p2)*7) / 16);
+}
+
+/***************************************************************************/
+/* diff */
+
+#define INTERP_Y_LIMIT (0x30*4)
+#define INTERP_U_LIMIT (0x07*4)
+#define INTERP_V_LIMIT (0x06*8)
+
+static int hq2x_interp_16_diff(uint16 p1, uint16 p2)
+{
+    int r, g, b;
+    int y, u, v;
+
+    if (p1 == p2)
+        return 0;
+
+    b = (int)((p1 & 0x000F) - (p2 & 0x000F));
+    g = (int)((p1 & 0x00F0) - (p2 & 0x00F0)) >> 4;
+    r = (int)((p1 & 0x0F00) - (p2 & 0x0F00)) >> 8;
+
+    y = r + g + b;
+    u = r - b;
+    v = -r + 2*g - b;
+
+    if (y < -INTERP_Y_LIMIT || y > INTERP_Y_LIMIT)
+        return 1;
+
+    if (u < -INTERP_U_LIMIT || u > INTERP_U_LIMIT)
+        return 1;
+
+    if (v < -INTERP_V_LIMIT || v > INTERP_V_LIMIT)
+        return 1;
+
+    return 0;
+}
+
+static int hq2x_interp_32_diff(uint32 p1, uint32 p2)
+{
+    int r, g, b;
+    int y, u, v;
+
+    if ((p1 & 0xF8F8F8) == (p2 & 0xF8F8F8))
+        return 0;
+
+    b = (int)((p1 & 0xFF) - (p2 & 0xFF));
+    g = (int)((p1 & 0xFF00) - (p2 & 0xFF00)) >> 8;
+    r = (int)((p1 & 0xFF0000) - (p2 & 0xFF0000)) >> 16;
+
+    y = r + g + b;
+    u = r - b;
+    v = -r + 2*g - b;
+
+    if (y < -INTERP_Y_LIMIT || y > INTERP_Y_LIMIT)
+        return 1;
+
+    if (u < -INTERP_U_LIMIT || u > INTERP_U_LIMIT)
+        return 1;
+
+    if (v < -INTERP_V_LIMIT || v > INTERP_V_LIMIT)
+        return 1;
+
+    return 0;
+}
+
+static void interp_set(unsigned bits_per_pixel)
+{
+    interp_bits_per_pixel = bits_per_pixel;
+}
+
+
+static void hq2x_16_def(uint16* dst0, uint16* dst1, const uint16* src0, const uint16* src1, const uint16* src2, unsigned count)
+{
+    unsigned i;
+
+    for(i=0;i<count;++i) {
+        unsigned char mask;
+
+        uint16 c[9];
+
+        c[1] = src0[0];
+        c[4] = src1[0];
+        c[7] = src2[0];
+
+        if (i>0) {
+            c[0] = src0[-1];
+            c[3] = src1[-1];
+            c[6] = src2[-1];
+        } else {
+            c[0] = c[1];
+            c[3] = c[4];
+            c[6] = c[7];
+        }
+
+        if (i<count-1) {
+            c[2] = src0[1];
+            c[5] = src1[1];
+            c[8] = src2[1];
+        } else {
+            c[2] = c[1];
+            c[5] = c[4];
+            c[8] = c[7];
+        }
+
+        mask = 0;
+
+        if (hq2x_interp_16_diff(c[0], c[4]))
+            mask |= 1 << 0;
+        if (hq2x_interp_16_diff(c[1], c[4]))
+            mask |= 1 << 1;
+        if (hq2x_interp_16_diff(c[2], c[4]))
+            mask |= 1 << 2;
+        if (hq2x_interp_16_diff(c[3], c[4]))
+            mask |= 1 << 3;
+        if (hq2x_interp_16_diff(c[5], c[4]))
+            mask |= 1 << 4;
+        if (hq2x_interp_16_diff(c[6], c[4]))
+            mask |= 1 << 5;
+        if (hq2x_interp_16_diff(c[7], c[4]))
+            mask |= 1 << 6;
+        if (hq2x_interp_16_diff(c[8], c[4]))
+            mask |= 1 << 7;
+
+#define P0 dst0[0]
+#define P1 dst0[1]
+#define P2 dst1[0]
+#define P3 dst1[1]
+#define HQ2X_MUR hq2x_interp_16_diff(c[1], c[5])
+#define HQ2X_MDR hq2x_interp_16_diff(c[5], c[7])
+#define HQ2X_MDL hq2x_interp_16_diff(c[7], c[3])
+#define HQ2X_MUL hq2x_interp_16_diff(c[3], c[1])
+#define IC(p0) c[p0]
+#define I11(p0,p1) hq2x_interp_16_11(c[p0], c[p1])
+#define I211(p0,p1,p2) hq2x_interp_16_211(c[p0], c[p1], c[p2])
+#define I31(p0,p1) hq2x_interp_16_31(c[p0], c[p1])
+#define I332(p0,p1,p2) hq2x_interp_16_332(c[p0], c[p1], c[p2])
+#define I431(p0,p1,p2) hq2x_interp_16_431(c[p0], c[p1], c[p2])
+#define I521(p0,p1,p2) hq2x_interp_16_521(c[p0], c[p1], c[p2])
+#define I53(p0,p1) hq2x_interp_16_53(c[p0], c[p1])
+#define I611(p0,p1,p2) hq2x_interp_16_611(c[p0], c[p1], c[p2])
+#define I71(p0,p1) hq2x_interp_16_71(c[p0], c[p1])
+#define I772(p0,p1,p2) hq2x_interp_16_772(c[p0], c[p1], c[p2])
+#define I97(p0,p1) hq2x_interp_16_97(c[p0], c[p1])
+#define I1411(p0,p1,p2) hq2x_interp_16_1411(c[p0], c[p1], c[p2])
+#define I151(p0,p1) hq2x_interp_16_151(c[p0], c[p1])
+
+        switch (mask) {
+#include "TextureFilters_hq2x.h"
+        }
+
+#undef P0
+#undef P1
+#undef P2
+#undef P3
+#undef HQ2X_MUR
+#undef HQ2X_MDR
+#undef HQ2X_MDL
+#undef HQ2X_MUL
+#undef IC
+#undef I11
+#undef I211
+#undef I31
+#undef I332
+#undef I431
+#undef I521
+#undef I53
+#undef I611
+#undef I71
+#undef I772
+#undef I97
+#undef I1411
+#undef I151
+
+        src0 += 1;
+        src1 += 1;
+        src2 += 1;
+        dst0 += 2;
+        dst1 += 2;
+    }
+}
+
+static void hq2x_32_def(uint32* dst0, uint32* dst1, const uint32* src0, const uint32* src1, const uint32* src2, unsigned count)
+{
+    unsigned i;
+
+    for(i=0;i<count;++i) {
+        unsigned char mask;
+
+        uint32 c[9];
+
+        c[1] = src0[0];
+        c[4] = src1[0];
+        c[7] = src2[0];
+
+        if (i>0) {
+            c[0] = src0[-1];
+            c[3] = src1[-1];
+            c[6] = src2[-1];
+        } else {
+            c[0] = src0[0];
+            c[3] = src1[0];
+            c[6] = src2[0];
+        }
+
+        if (i<count-1) {
+            c[2] = src0[1];
+            c[5] = src1[1];
+            c[8] = src2[1];
+        } else {
+            c[2] = src0[0];
+            c[5] = src1[0];
+            c[8] = src2[0];
+        }
+
+        mask = 0;
+
+        if (hq2x_interp_32_diff(c[0], c[4]))
+            mask |= 1 << 0;
+        if (hq2x_interp_32_diff(c[1], c[4]))
+            mask |= 1 << 1;
+        if (hq2x_interp_32_diff(c[2], c[4]))
+            mask |= 1 << 2;
+        if (hq2x_interp_32_diff(c[3], c[4]))
+            mask |= 1 << 3;
+        if (hq2x_interp_32_diff(c[5], c[4]))
+            mask |= 1 << 4;
+        if (hq2x_interp_32_diff(c[6], c[4]))
+            mask |= 1 << 5;
+        if (hq2x_interp_32_diff(c[7], c[4]))
+            mask |= 1 << 6;
+        if (hq2x_interp_32_diff(c[8], c[4]))
+            mask |= 1 << 7;
+
+#define P0 dst0[0]
+#define P1 dst0[1]
+#define P2 dst1[0]
+#define P3 dst1[1]
+#define HQ2X_MUR hq2x_interp_32_diff(c[1], c[5])
+#define HQ2X_MDR hq2x_interp_32_diff(c[5], c[7])
+#define HQ2X_MDL hq2x_interp_32_diff(c[7], c[3])
+#define HQ2X_MUL hq2x_interp_32_diff(c[3], c[1])
+#define IC(p0) c[p0]
+#define I11(p0,p1) hq2x_interp_32_11(c[p0], c[p1])
+#define I211(p0,p1,p2) hq2x_interp_32_211(c[p0], c[p1], c[p2])
+#define I31(p0,p1) hq2x_interp_32_31(c[p0], c[p1])
+#define I332(p0,p1,p2) hq2x_interp_32_332(c[p0], c[p1], c[p2])
+#define I431(p0,p1,p2) hq2x_interp_32_431(c[p0], c[p1], c[p2])
+#define I521(p0,p1,p2) hq2x_interp_32_521(c[p0], c[p1], c[p2])
+#define I53(p0,p1) hq2x_interp_32_53(c[p0], c[p1])
+#define I611(p0,p1,p2) hq2x_interp_32_611(c[p0], c[p1], c[p2])
+#define I71(p0,p1) hq2x_interp_32_71(c[p0], c[p1])
+#define I772(p0,p1,p2) hq2x_interp_32_772(c[p0], c[p1], c[p2])
+#define I97(p0,p1) hq2x_interp_32_97(c[p0], c[p1])
+#define I1411(p0,p1,p2) hq2x_interp_32_1411(c[p0], c[p1], c[p2])
+#define I151(p0,p1) hq2x_interp_32_151(c[p0], c[p1])
+
+        switch (mask) {
+#include "TextureFilters_hq2x.h"
+        }
+
+#undef P0
+#undef P1
+#undef P2
+#undef P3
+#undef HQ2X_MUR
+#undef HQ2X_MDR
+#undef HQ2X_MDL
+#undef HQ2X_MUL
+#undef IC
+#undef I11
+#undef I211
+#undef I31
+#undef I332
+#undef I431
+#undef I521
+#undef I53
+#undef I611
+#undef I71
+#undef I772
+#undef I97
+#undef I1411
+#undef I151
+
+        src0 += 1;
+        src1 += 1;
+        src2 += 1;
+        dst0 += 2;
+        dst1 += 2;
+    }
+}
+
+/***************************************************************************/
+/* LQ2x C implementation */
+
+/*
+* This effect is derived from the hq2x effect made by Maxim Stepin
+*/
+
+static void lq2x_16_def(uint16* dst0, uint16* dst1, const uint16* src0, const uint16* src1, const uint16* src2, unsigned count)
+{
+    unsigned i;
+
+    for(i=0;i<count;++i) {
+        unsigned char mask;
+
+        uint16 c[9];
+
+        c[1] = src0[0];
+        c[4] = src1[0];
+        c[7] = src2[0];
+
+        if (i>0) {
+            c[0] = src0[-1];
+            c[3] = src1[-1];
+            c[6] = src2[-1];
+        } else {
+            c[0] = c[1];
+            c[3] = c[4];
+            c[6] = c[7];
+        }
+
+        if (i<count-1) {
+            c[2] = src0[1];
+            c[5] = src1[1];
+            c[8] = src2[1];
+        } else {
+            c[2] = c[1];
+            c[5] = c[4];
+            c[8] = c[7];
+        }
+
+        mask = 0;
+
+        if (c[0] != c[4])
+            mask |= 1 << 0;
+        if (c[1] != c[4])
+            mask |= 1 << 1;
+        if (c[2] != c[4])
+            mask |= 1 << 2;
+        if (c[3] != c[4])
+            mask |= 1 << 3;
+        if (c[5] != c[4])
+            mask |= 1 << 4;
+        if (c[6] != c[4])
+            mask |= 1 << 5;
+        if (c[7] != c[4])
+            mask |= 1 << 6;
+        if (c[8] != c[4])
+            mask |= 1 << 7;
+
+#define P0 dst0[0]
+#define P1 dst0[1]
+#define P2 dst1[0]
+#define P3 dst1[1]
+#define HQ2X_MUR (c[1] != c[5])
+#define HQ2X_MDR (c[5] != c[7])
+#define HQ2X_MDL (c[7] != c[3])
+#define HQ2X_MUL (c[3] != c[1])
+#define IC(p0) c[p0]
+#define I11(p0,p1) hq2x_interp_16_11(c[p0], c[p1])
+#define I211(p0,p1,p2) hq2x_interp_16_211(c[p0], c[p1], c[p2])
+#define I31(p0,p1) hq2x_interp_16_31(c[p0], c[p1])
+#define I332(p0,p1,p2) hq2x_interp_16_332(c[p0], c[p1], c[p2])
+#define I431(p0,p1,p2) hq2x_interp_16_431(c[p0], c[p1], c[p2])
+#define I521(p0,p1,p2) hq2x_interp_16_521(c[p0], c[p1], c[p2])
+#define I53(p0,p1) hq2x_interp_16_53(c[p0], c[p1])
+#define I611(p0,p1,p2) hq2x_interp_16_611(c[p0], c[p1], c[p2])
+#define I71(p0,p1) hq2x_interp_16_71(c[p0], c[p1])
+#define I772(p0,p1,p2) hq2x_interp_16_772(c[p0], c[p1], c[p2])
+#define I97(p0,p1) hq2x_interp_16_97(c[p0], c[p1])
+#define I1411(p0,p1,p2) hq2x_interp_16_1411(c[p0], c[p1], c[p2])
+#define I151(p0,p1) hq2x_interp_16_151(c[p0], c[p1])
+
+        switch (mask) {
+#include "TextureFilters_lq2x.h"
+        }
+
+#undef P0
+#undef P1
+#undef P2
+#undef P3
+#undef HQ2X_MUR
+#undef HQ2X_MDR
+#undef HQ2X_MDL
+#undef HQ2X_MUL
+#undef IC
+#undef I11
+#undef I211
+#undef I31
+#undef I332
+#undef I431
+#undef I521
+#undef I53
+#undef I611
+#undef I71
+#undef I772
+#undef I97
+#undef I1411
+#undef I151
+
+        src0 += 1;
+        src1 += 1;
+        src2 += 1;
+        dst0 += 2;
+        dst1 += 2;
+    }
+}
+
+static void lq2x_32_def(uint32* dst0, uint32* dst1, const uint32* src0, const uint32* src1, const uint32* src2, unsigned count)
+{
+    unsigned i;
+
+    for(i=0;i<count;++i) {
+        unsigned char mask;
+
+        uint32 c[9];
+
+        c[1] = src0[0];
+        c[4] = src1[0];
+        c[7] = src2[0];
+
+        if (i>0) {
+            c[0] = src0[-1];
+            c[3] = src1[-1];
+            c[6] = src2[-1];
+        } else {
+            c[0] = c[1];
+            c[3] = c[4];
+            c[6] = c[7];
+        }
+
+        if (i<count-1) {
+            c[2] = src0[1];
+            c[5] = src1[1];
+            c[8] = src2[1];
+        } else {
+            c[2] = c[1];
+            c[5] = c[4];
+            c[8] = c[7];
+        }
+
+        mask = 0;
+
+        if (c[0] != c[4])
+            mask |= 1 << 0;
+        if (c[1] != c[4])
+            mask |= 1 << 1;
+        if (c[2] != c[4])
+            mask |= 1 << 2;
+        if (c[3] != c[4])
+            mask |= 1 << 3;
+        if (c[5] != c[4])
+            mask |= 1 << 4;
+        if (c[6] != c[4])
+            mask |= 1 << 5;
+        if (c[7] != c[4])
+            mask |= 1 << 6;
+        if (c[8] != c[4])
+            mask |= 1 << 7;
+
+#define P0 dst0[0]
+#define P1 dst0[1]
+#define P2 dst1[0]
+#define P3 dst1[1]
+#define HQ2X_MUR (c[1] != c[5])
+#define HQ2X_MDR (c[5] != c[7])
+#define HQ2X_MDL (c[7] != c[3])
+#define HQ2X_MUL (c[3] != c[1])
+#define IC(p0) c[p0]
+#define I11(p0,p1) hq2x_interp_32_11(c[p0], c[p1])
+#define I211(p0,p1,p2) hq2x_interp_32_211(c[p0], c[p1], c[p2])
+#define I31(p0,p1) hq2x_interp_32_31(c[p0], c[p1])
+#define I332(p0,p1,p2) hq2x_interp_32_332(c[p0], c[p1], c[p2])
+#define I431(p0,p1,p2) hq2x_interp_32_431(c[p0], c[p1], c[p2])
+#define I521(p0,p1,p2) hq2x_interp_32_521(c[p0], c[p1], c[p2])
+#define I53(p0,p1) hq2x_interp_32_53(c[p0], c[p1])
+#define I611(p0,p1,p2) hq2x_interp_32_611(c[p0], c[p1], c[p2])
+#define I71(p0,p1) hq2x_interp_32_71(c[p0], c[p1])
+#define I772(p0,p1,p2) hq2x_interp_32_772(c[p0], c[p1], c[p2])
+#define I97(p0,p1) hq2x_interp_32_97(c[p0], c[p1])
+#define I1411(p0,p1,p2) hq2x_interp_32_1411(c[p0], c[p1], c[p2])
+#define I151(p0,p1) hq2x_interp_32_151(c[p0], c[p1])
+
+        switch (mask) {
+#include "TextureFilters_lq2x.h"
+        }
+
+#undef P0
+#undef P1
+#undef P2
+#undef P3
+#undef HQ2X_MUR
+#undef HQ2X_MDR
+#undef HQ2X_MDL
+#undef HQ2X_MUL
+#undef IC
+#undef I11
+#undef I211
+#undef I31
+#undef I332
+#undef I431
+#undef I521
+#undef I53
+#undef I611
+#undef I71
+#undef I772
+#undef I97
+#undef I1411
+#undef I151
+
+        src0 += 1;
+        src1 += 1;
+        src2 += 1;
+        dst0 += 2;
+        dst1 += 2;
+    }
+}
+
+void hq2x_16(uint8 *srcPtr, uint32 srcPitch, uint8 *dstPtr, uint32 dstPitch, int width, int height)
+{
+    uint16 *dst0 = (uint16 *)dstPtr;
+    uint16 *dst1 = dst0 + (dstPitch >> 1);
+
+    uint16 *src0 = (uint16 *)srcPtr;
+    uint16 *src1 = src0 + (srcPitch >> 1);
+    uint16 *src2 = src1 + (srcPitch >> 1);
+
+    hq2x_16_def(dst0, dst1, src0, src0, src1, width);
+    if( height == 1 ) return;
+
+    int count = height;
+
+    count -= 2;
+    while(count>0) {
+        dst0 += dstPitch;
+        dst1 += dstPitch;
+        hq2x_16_def(dst0, dst1, src0, src1, src2, width);
+        src0 = src1;
+        src1 = src2;
+        src2 += srcPitch >> 1;
+        --count;
+    }
+    dst0 += dstPitch;
+    dst1 += dstPitch;
+    hq2x_16_def(dst0, dst1, src0, src1, src1, width);
+}
+
+void hq2x_32(uint8 *srcPtr, uint32 srcPitch, uint8 *dstPtr, uint32 dstPitch, int width, int height)
+{
+    uint32 *dst0 = (uint32 *)dstPtr;
+    uint32 *dst1 = dst0 + (dstPitch >> 2);
+
+    uint32 *src0 = (uint32 *)srcPtr;
+    uint32 *src1 = src0 + (srcPitch >> 2);
+    uint32 *src2 = src1 + (srcPitch >> 2);
+    hq2x_32_def(dst0, dst1, src0, src0, src1, width);
+    if( height == 1 ) return;
+
+    int count = height;
+
+    count -= 2;
+    while(count>0) {
+        dst0 += dstPitch >> 1;
+        dst1 += dstPitch >> 1;
+        hq2x_32_def(dst0, dst1, src0, src1, src2, width);
+        src0 = src1;
+        src1 = src2;
+        src2 += srcPitch >> 2;
+        --count;
+    }
+    dst0 += dstPitch >> 1;
+    dst1 += dstPitch >> 1;
+    hq2x_32_def(dst0, dst1, src0, src1, src1, width);
+}
+
+void lq2x_16(uint8 *srcPtr, uint32 srcPitch, uint8 *dstPtr, uint32 dstPitch, int width, int height)
+{
+    uint16 *dst0 = (uint16 *)dstPtr;
+    uint16 *dst1 = dst0 + (dstPitch >> 1);
+
+    uint16 *src0 = (uint16 *)srcPtr;
+    uint16 *src1 = src0 + (srcPitch >> 1);
+    uint16 *src2 = src1 + (srcPitch >> 1);
+
+    lq2x_16_def(dst0, dst1, src0, src0, src1, width);
+    if( height == 1 ) return;
+
+    int count = height;
+
+    count -= 2;
+    while(count>0) {
+        dst0 += dstPitch;
+        dst1 += dstPitch;
+        hq2x_16_def(dst0, dst1, src0, src1, src2, width);
+        src0 = src1;
+        src1 = src2;
+        src2 += srcPitch >> 1;
+        --count;
+    }
+    dst0 += dstPitch;
+    dst1 += dstPitch;
+    lq2x_16_def(dst0, dst1, src0, src1, src1, width);
+}
+
+void lq2x_32(uint8 *srcPtr, uint32 srcPitch, uint8 *dstPtr, uint32 dstPitch, int width, int height)
+{
+    uint32 *dst0 = (uint32 *)dstPtr;
+    uint32 *dst1 = dst0 + (dstPitch >> 2);
+
+    uint32 *src0 = (uint32 *)srcPtr;
+    uint32 *src1 = src0 + (srcPitch >> 2);
+    uint32 *src2 = src1 + (srcPitch >> 2);
+    lq2x_32_def(dst0, dst1, src0, src0, src1, width);
+    if( height == 1 ) return;
+
+    int count = height;
+
+    count -= 2;
+    while(count>0) {
+        dst0 += dstPitch >> 1;
+        dst1 += dstPitch >> 1;
+        hq2x_32_def(dst0, dst1, src0, src1, src2, width);
+        src0 = src1;
+        src1 = src2;
+        src2 += srcPitch >> 2;
+        --count;
+    }
+    dst0 += dstPitch >> 1;
+    dst1 += dstPitch >> 1;
+    lq2x_32_def(dst0, dst1, src0, src1, src1, width);
+}
+
+void hq2x_init(unsigned bits_per_pixel)
+{
+    interp_set(bits_per_pixel);
+}
+
+/************************************************************************/
+/* hq3x filters                                                         */
+/************************************************************************/
+
+/************************************************************************/
+/* scale2x filters                                                      */
+/************************************************************************/
+
+/************************************************************************/
+/* scale3x filters                                                      */
+/************************************************************************/
+