Glide Plugin GLES2 port from mupen64plus-ae, but with special FrameSkip code

[mupen64plus-pandora.git] / source / gles2glide64 / src / GlideHQ / TextureFilters_2xsai.cpp

diff --git a/source/gles2glide64/src/GlideHQ/TextureFilters_2xsai.cpp b/source/gles2glide64/src/GlideHQ/TextureFilters_2xsai.cpp
new file mode 100644 (file)
index 0000000..d7e8305
--- /dev/null
+++ b/source/gles2glide64/src/GlideHQ/TextureFilters_2xsai.cpp
@@ -0,0 +1,154 @@
+/*
+ * Texture Filtering
+ * Version:  1.0
+ *
+ * Copyright (C) 2007  Hiroshi Morii   All Rights Reserved.
+ * Email koolsmoky(at)users.sourceforge.net
+ * Web   http://www.3dfxzone.it/koolsmoky
+ *
+ * this 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, or (at your option)
+ * any later version.
+ *
+ * this 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 GNU Make; see the file COPYING.  If not, write to
+ * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+/* Based on Derek Liauw Kie Fa and Rice1964 Super2xSaI code */
+
+#include "TextureFilters.h"
+
+#define GET_RESULT(A, B, C, D) ((A != C || A != D) - (B != C || B != D))
+
+void Super2xSaI_8888(uint32 *srcPtr, uint32 *destPtr, uint32 width, uint32 height, uint32 pitch)
+{
+#define SAI_INTERPOLATE_8888(A, B) ((A & 0xFEFEFEFE) >> 1) + ((B & 0xFEFEFEFE) >> 1) + (A & B & 0x01010101)
+#define SAI_Q_INTERPOLATE_8888(A, B, C, D) ((A & 0xFCFCFCFC) >> 2) + ((B & 0xFCFCFCFC) >> 2) + ((C & 0xFCFCFCFC) >> 2) + ((D & 0xFCFCFCFC) >> 2) \
+  + ((((A & 0x03030303) + (B & 0x03030303) + (C & 0x03030303) + (D & 0x03030303)) >> 2) & 0x03030303)
+
+#define SAI_INTERPOLATE SAI_INTERPOLATE_8888
+#define SAI_Q_INTERPOLATE SAI_Q_INTERPOLATE_8888
+
+  uint32 destWidth = width << 1;
+  
+  uint32 color4, color5, color6;
+  uint32 color1, color2, color3;
+  uint32 colorA0, colorA1, colorA2, colorA3;
+  uint32 colorB0, colorB1, colorB2, colorB3;
+  uint32 colorS1, colorS2;
+  uint32 product1a, product1b, product2a, product2b;
+
+#include "TextureFilters_2xsai.h"
+
+#undef SAI_INTERPOLATE
+#undef SAI_Q_INTERPOLATE
+}
+
+#if !_16BPP_HACK
+void Super2xSaI_4444(uint16 *srcPtr, uint16 *destPtr, uint32 width, uint32 height, uint32 pitch)
+{
+#define SAI_INTERPOLATE_4444(A, B) ((A & 0xEEEE) >> 1) + ((B & 0xEEEE) >> 1) + (A & B & 0x1111)
+#define SAI_Q_INTERPOLATE_4444(A, B, C, D) ((A & 0xCCCC) >> 2) + ((B & 0xCCCC) >> 2) + ((C & 0xCCCC) >> 2) + ((D & 0xCCCC) >> 2) \
+  + ((((A & 0x3333) + (B & 0x3333) + (C & 0x3333) + (D & 0x3333)) >> 2) & 0x3333)
+
+#define SAI_INTERPOLATE SAI_INTERPOLATE_4444
+#define SAI_Q_INTERPOLATE SAI_Q_INTERPOLATE_4444
+
+  uint32 destWidth = width << 1;
+  uint32 destHeight = height << 1;
+
+  uint16 color4, color5, color6;
+  uint16 color1, color2, color3;
+  uint16 colorA0, colorA1, colorA2, colorA3;
+  uint16 colorB0, colorB1, colorB2, colorB3;
+  uint16 colorS1, colorS2;
+  uint16 product1a, product1b, product2a, product2b;
+
+#include "TextureFilters_2xsai.h"
+
+#undef SAI_INTERPOLATE
+#undef SAI_Q_INTERPOLATE
+}
+
+void Super2xSaI_1555(uint16 *srcPtr, uint16 *destPtr, uint32 width, uint32 height, uint32 pitch)
+{
+#define SAI_INTERPOLATE_1555(A, B) ((A & 0x7BDE) >> 1) + ((B & 0x7BDE) >> 1) + (A & B & 0x8421)
+#define SAI_Q_INTERPOLATE_1555(A, B, C, D) ((A & 0x739C) >> 2) + ((B & 0x739C) >> 2) + ((C & 0x739C) >> 2) + ((D & 0x739C) >> 2) \
+  + ((((A & 0x8C63) + (B & 0x8C63) + (C & 0x8C63) + (D & 0x8C63)) >> 2) & 0x8C63)
+
+#define SAI_INTERPOLATE SAI_INTERPOLATE_1555
+#define SAI_Q_INTERPOLATE SAI_Q_INTERPOLATE_1555
+
+  uint32 destWidth = width << 1;
+  uint32 destHeight = height << 1;
+
+  uint16 color4, color5, color6;
+  uint16 color1, color2, color3;
+  uint16 colorA0, colorA1, colorA2, colorA3;
+  uint16 colorB0, colorB1, colorB2, colorB3;
+  uint16 colorS1, colorS2;
+  uint16 product1a, product1b, product2a, product2b;
+
+#include "TextureFilters_2xsai.h"
+
+#undef SAI_INTERPOLATE
+#undef SAI_Q_INTERPOLATE
+}
+
+void Super2xSaI_565(uint16 *srcPtr, uint16 *destPtr, uint32 width, uint32 height, uint32 pitch)
+{
+#define SAI_INTERPOLATE_565(A, B) ((A & 0xF7DE) >> 1) + ((B & 0xF7DE) >> 1) + (A & B & 0x0821)
+#define SAI_Q_INTERPOLATE_565(A, B, C, D) ((A & 0xE79C) >> 2) + ((B & 0xE79C) >> 2) + ((C & 0xE79C) >> 2) + ((D & 0xE79C) >> 2) \
+  + ((((A & 0x1863) + (B & 0x1863) + (C & 0x1863) + (D & 0x1863)) >> 2) & 0x1863)
+
+#define SAI_INTERPOLATE SAI_INTERPOLATE_565
+#define SAI_Q_INTERPOLATE SAI_Q_INTERPOLATE_565
+
+  uint32 destWidth = width << 1;
+  uint32 destHeight = height << 1;
+
+  uint16 color4, color5, color6;
+  uint16 color1, color2, color3;
+  uint16 colorA0, colorA1, colorA2, colorA3;
+  uint16 colorB0, colorB1, colorB2, colorB3;
+  uint16 colorS1, colorS2;
+  uint16 product1a, product1b, product2a, product2b;
+
+#include "TextureFilters_2xsai.h"
+
+#undef SAI_INTERPOLATE
+#undef SAI_Q_INTERPOLATE
+}
+
+void Super2xSaI_8(uint8 *srcPtr, uint8 *destPtr, uint32 width, uint32 height, uint32 pitch)
+{
+#define SAI_INTERPOLATE_8(A, B) ((A & 0xFE) >> 1) + ((B & 0xFE) >> 1) + (A & B & 0x01)
+#define SAI_Q_INTERPOLATE_8(A, B, C, D) ((A & 0xFC) >> 2) + ((B & 0xFC) >> 2) + ((C & 0xFC) >> 2) + ((D & 0xFC) >> 2) \
+  + ((((A & 0x03) + (B & 0x03) + (C & 0x03) + (D & 0x03)) >> 2) & 0x03)
+
+#define SAI_INTERPOLATE SAI_INTERPOLATE_8
+#define SAI_Q_INTERPOLATE SAI_Q_INTERPOLATE_8
+
+  uint32 destWidth = width << 1;
+  uint32 destHeight = height << 1;
+
+  uint8 color4, color5, color6;
+  uint8 color1, color2, color3;
+  uint8 colorA0, colorA1, colorA2, colorA3;
+  uint8 colorB0, colorB1, colorB2, colorB3;
+  uint8 colorS1, colorS2;
+  uint8 product1a, product1b, product2a, product2b;
+
+#include "TextureFilters_2xsai.h"
+
+#undef SAI_INTERPOLATE
+#undef SAI_Q_INTERPOLATE
+}
+#endif /* !_16BPP_HACK */