b1abbf6bfe
Now support the BW and Color IROM Internal EEPROM support is now nearly correct (still some odd thing happening)
941 lines
26 KiB
C++
941 lines
26 KiB
C++
/*
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* Snes9x - Portable Super Nintendo Entertainment System (TM) emulator.
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*
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* (c) Copyright 1996 - 2001 Gary Henderson (gary@daniver.demon.co.uk) and
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* Jerremy Koot (jkoot@snes9x.com)
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*
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* Super FX C emulator code
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* (c) Copyright 1997 - 1999 Ivar (Ivar@snes9x.com) and
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* Gary Henderson.
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* Super FX assembler emulator code (c) Copyright 1998 zsKnight and _Demo_.
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*
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* DSP1 emulator code (c) Copyright 1998 Ivar, _Demo_ and Gary Henderson.
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* C4 asm and some C emulation code (c) Copyright 2000 zsKnight and _Demo_.
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* C4 C code (c) Copyright 2001 Gary Henderson (gary@daniver.demon.co.uk).
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*
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* DOS port code contains the works of other authors. See headers in
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* individual files.
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*
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* Snes9x homepage: www.snes9x.com
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*
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* Permission to use, copy, modify and distribute Snes9x in both binary and
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* source form, for non-commercial purposes, is hereby granted without fee,
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* providing that this license information and copyright notice appear with
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* all copies and any derived work.
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*
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* This software is provided 'as-is', without any express or implied
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* warranty. In no event shall the authors be held liable for any damages
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* arising from the use of this software.
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*
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* Snes9x is freeware for PERSONAL USE only. Commercial users should
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* seek permission of the copyright holders first. Commercial use includes
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* charging money for Snes9x or software derived from Snes9x.
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*
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* The copyright holders request that bug fixes and improvements to the code
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* should be forwarded to them so everyone can benefit from the modifications
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* in future versions.
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*
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* Super NES and Super Nintendo Entertainment System are trademarks of
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* Nintendo Co., Limited and its subsidiary companies.
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*/
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#include "types.h"
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#include "2xSaI.h"
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static u32 colorMask = 0xF7DEF7DE;
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static u32 lowPixelMask = 0x08210821;
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static u32 qcolorMask = 0xE79CE79C;
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static u32 qlowpixelMask = 0x18631863;
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static u32 redblueMask = 0xF81F;
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static u32 greenMask = 0x7E0;
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int Init_2xSaI(u32 BitFormat)
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{
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if (BitFormat == 565)
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{
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colorMask = 0xF7DEF7DE;
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lowPixelMask = 0x08210821;
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qcolorMask = 0xE79CE79C;
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qlowpixelMask = 0x18631863;
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redblueMask = 0xF81F;
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greenMask = 0x7E0;
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}
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else if (BitFormat == 555)
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{
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colorMask = 0x7BDE7BDE;
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lowPixelMask = 0x04210421;
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qcolorMask = 0x739C739C;
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qlowpixelMask = 0x0C630C63;
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redblueMask = 0x7C1F;
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greenMask = 0x3E0;
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}
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else
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{
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return 0;
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}
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return 1;
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}
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static inline int GetResult1 (u32 A, u32 B, u32 C, u32 D,
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u32 /* E */)
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{
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int x = 0;
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int y = 0;
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int r = 0;
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if (A == C)
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{
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x += 1;
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}
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else if (B == C)
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{
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y += 1;
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}
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if (A == D)
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{
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x += 1;
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}
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else if (B == D)
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{
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y += 1;
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}
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if (x <= 1)
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{
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r += 1;
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}
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if (y <= 1)
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{
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r -= 1;
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}
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return r;
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}
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static inline int GetResult2 (u32 A, u32 B, u32 C, u32 D,
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u32 /* E */)
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{
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int x = 0;
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int y = 0;
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int r = 0;
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if (A == C)
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{
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x += 1;
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}
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else if (B == C)
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{
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y += 1;
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}
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if (A == D)
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{
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x += 1;
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}
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else if (B == D)
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{
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y += 1;
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}
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if (x <= 1)
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{
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r -= 1;
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}
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if (y <= 1)
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{
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r += 1;
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}
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return r;
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}
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static inline int GetResult (u32 A, u32 B, u32 C, u32 D)
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{
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int x = 0;
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int y = 0;
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int r = 0;
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if (A == C)
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{
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x += 1;
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}
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else if (B == C)
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{
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y += 1;
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}
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if (A == D)
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{
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x += 1;
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}
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else if (B == D)
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{
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y += 1;
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}
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if (x <= 1)
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{
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r += 1;
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}
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if (y <= 1)
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{
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r -= 1;
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}
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return r;
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}
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static inline u32 INTERPOLATE (u32 A, u32 B)
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{
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if (A != B)
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{
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return (((A & colorMask) >> 1) + ((B & colorMask) >> 1) +
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(A & B & lowPixelMask));
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}
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else
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{
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return A;
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}
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}
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static inline u32 Q_INTERPOLATE (u32 A, u32 B, u32 C, u32 D)
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{
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register u32 x = ((A & qcolorMask) >> 2) +
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((B & qcolorMask) >> 2) +
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((C & qcolorMask) >> 2) + ((D & qcolorMask) >> 2);
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register u32 y = (A & qlowpixelMask) +
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(B & qlowpixelMask) + (C & qlowpixelMask) + (D & qlowpixelMask);
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y = (y >> 2) & qlowpixelMask;
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return x + y;
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}
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#define BLUE_MASK565 0x001F001F
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#define RED_MASK565 0xF800F800
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#define GREEN_MASK565 0x07E007E0
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#define BLUE_MASK555 0x001F001F
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#define RED_MASK555 0x7C007C00
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#define GREEN_MASK555 0x03E003E0
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void Super2xSaI (u8 *srcPtr, u32 srcPitch,
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u8 *deltaPtr, u8 *dstPtr, u32 dstPitch,
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int width, int height)
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{
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u16 *bP;
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u8 *dP;
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u32 inc_bP;
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u32 Nextline = srcPitch >> 1;
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{
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inc_bP = 1;
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for (; height; height--)
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{
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bP = (u16 *) srcPtr;
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dP = (u8 *) dstPtr;
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for (u32 finish = width; finish; finish -= inc_bP)
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{
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u32 color4, color5, color6;
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u32 color1, color2, color3;
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u32 colorA0, colorA1, colorA2, colorA3,
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colorB0, colorB1, colorB2, colorB3, colorS1, colorS2;
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u32 product1a, product1b, product2a, product2b;
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//--------------------------------------- B1 B2
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// 4 5 6 S2
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// 1 2 3 S1
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// A1 A2
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colorB0 = *(bP - Nextline - 1);
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colorB1 = *(bP - Nextline);
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colorB2 = *(bP - Nextline + 1);
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colorB3 = *(bP - Nextline + 2);
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color4 = *(bP - 1);
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color5 = *(bP);
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color6 = *(bP + 1);
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colorS2 = *(bP + 2);
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color1 = *(bP + Nextline - 1);
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color2 = *(bP + Nextline);
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color3 = *(bP + Nextline + 1);
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colorS1 = *(bP + Nextline + 2);
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colorA0 = *(bP + Nextline + Nextline - 1);
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colorA1 = *(bP + Nextline + Nextline);
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colorA2 = *(bP + Nextline + Nextline + 1);
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colorA3 = *(bP + Nextline + Nextline + 2);
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//--------------------------------------
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if (color2 == color6 && color5 != color3)
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{
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product2b = product1b = color2;
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}
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else if (color5 == color3 && color2 != color6)
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{
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product2b = product1b = color5;
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}
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else if (color5 == color3 && color2 == color6)
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{
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register int r = 0;
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r += GetResult (color6, color5, color1, colorA1);
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r += GetResult (color6, color5, color4, colorB1);
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r += GetResult (color6, color5, colorA2, colorS1);
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r += GetResult (color6, color5, colorB2, colorS2);
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if (r > 0)
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{
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product2b = product1b = color6;
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}
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else if (r < 0)
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{
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product2b = product1b = color5;
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}
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else
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{
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product2b = product1b = INTERPOLATE (color5, color6);
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}
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}
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else
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{
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if (color6 == color3 && color3 == colorA1
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&& color2 != colorA2 && color3 != colorA0)
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product2b =
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Q_INTERPOLATE (color3, color3, color3, color2);
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else if (color5 == color2 && color2 == colorA2
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&& colorA1 != color3 && color2 != colorA3)
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product2b =
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Q_INTERPOLATE (color2, color2, color2, color3);
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else
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{
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product2b = INTERPOLATE (color2, color3);
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}
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if (color6 == color3 && color6 == colorB1
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&& color5 != colorB2 && color6 != colorB0)
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product1b =
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Q_INTERPOLATE (color6, color6, color6, color5);
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else if (color5 == color2 && color5 == colorB2
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&& colorB1 != color6 && color5 != colorB3)
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product1b =
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Q_INTERPOLATE (color6, color5, color5, color5);
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else
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{
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product1b = INTERPOLATE (color5, color6);
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}
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}
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if (color5 == color3 && color2 != color6 && color4 == color5
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&& color5 != colorA2)
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{
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product2a = INTERPOLATE (color2, color5);
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}
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else if (color5 == color1 && color6 == color5
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&& color4 != color2 && color5 != colorA0)
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{
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product2a = INTERPOLATE (color2, color5);
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}
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else
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{
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product2a = color2;
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}
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if (color2 == color6 && color5 != color3 && color1 == color2
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&& color2 != colorB2)
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{
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product1a = INTERPOLATE (color2, color5);
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}
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else if (color4 == color2 && color3 == color2
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&& color1 != color5 && color2 != colorB0)
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{
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product1a = INTERPOLATE (color2, color5);
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}
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else
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{
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product1a = color5;
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}
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product1a = product1a | (product1b << 16);
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product2a = product2a | (product2b << 16);
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*((u32 *) dP) = product1a;
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*((u32 *) (dP + dstPitch)) = product2a;
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bP += inc_bP;
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dP += sizeof (u32);
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} // end of for ( finish= width etc..)
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srcPtr += srcPitch;
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dstPtr += dstPitch * 2;
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// deltaPtr += srcPitch;
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} // endof: for (; height; height--)
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}
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}
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void SuperEagle (u8 *srcPtr, u32 srcPitch, u8 *deltaPtr,
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u8 *dstPtr, u32 dstPitch, int width, int height)
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{
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u8 *dP;
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u16 *bP;
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//u16 *xP;
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u32 inc_bP;
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{
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inc_bP = 1;
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u32 Nextline = srcPitch >> 1;
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for (; height; height--)
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{
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bP = (u16 *) srcPtr;
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// xP = (u16 *) deltaPtr;
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dP = dstPtr;
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for (u32 finish = width; finish; finish -= inc_bP)
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{
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u32 color4, color5, color6;
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u32 color1, color2, color3;
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u32 colorA1, colorA2, colorB1, colorB2, colorS1, colorS2;
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u32 product1a, product1b, product2a, product2b;
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colorB1 = *(bP - Nextline);
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colorB2 = *(bP - Nextline + 1);
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color4 = *(bP - 1);
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color5 = *(bP);
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color6 = *(bP + 1);
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colorS2 = *(bP + 2);
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color1 = *(bP + Nextline - 1);
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color2 = *(bP + Nextline);
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color3 = *(bP + Nextline + 1);
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colorS1 = *(bP + Nextline + 2);
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colorA1 = *(bP + Nextline + Nextline);
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colorA2 = *(bP + Nextline + Nextline + 1);
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// --------------------------------------
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if (color2 == color6 && color5 != color3)
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{
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product1b = product2a = color2;
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if ((color1 == color2) || (color6 == colorB2))
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{
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product1a = INTERPOLATE (color2, color5);
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product1a = INTERPOLATE (color2, product1a);
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// product1a = color2;
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}
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else
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{
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product1a = INTERPOLATE (color5, color6);
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}
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if ((color6 == colorS2) || (color2 == colorA1))
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{
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product2b = INTERPOLATE (color2, color3);
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product2b = INTERPOLATE (color2, product2b);
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// product2b = color2;
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}
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else
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{
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product2b = INTERPOLATE (color2, color3);
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}
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}
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else if (color5 == color3 && color2 != color6)
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{
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product2b = product1a = color5;
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if ((colorB1 == color5) || (color3 == colorS1))
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{
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product1b = INTERPOLATE (color5, color6);
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product1b = INTERPOLATE (color5, product1b);
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// product1b = color5;
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}
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else
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{
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product1b = INTERPOLATE (color5, color6);
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}
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if ((color3 == colorA2) || (color4 == color5))
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{
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product2a = INTERPOLATE (color5, color2);
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product2a = INTERPOLATE (color5, product2a);
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// product2a = color5;
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}
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else
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{
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product2a = INTERPOLATE (color2, color3);
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}
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}
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else if (color5 == color3 && color2 == color6)
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{
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register int r = 0;
|
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|
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r += GetResult (color6, color5, color1, colorA1);
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r += GetResult (color6, color5, color4, colorB1);
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r += GetResult (color6, color5, colorA2, colorS1);
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r += GetResult (color6, color5, colorB2, colorS2);
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if (r > 0)
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{
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product1b = product2a = color2;
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product1a = product2b = INTERPOLATE (color5, color6);
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}
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else if (r < 0)
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{
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product2b = product1a = color5;
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product1b = product2a = INTERPOLATE (color5, color6);
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}
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else
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{
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product2b = product1a = color5;
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product1b = product2a = color2;
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}
|
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}
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else
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{
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product2b = product1a = INTERPOLATE (color2, color6);
|
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product2b =
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Q_INTERPOLATE (color3, color3, color3, product2b);
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product1a =
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Q_INTERPOLATE (color5, color5, color5, product1a);
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product2a = product1b = INTERPOLATE (color5, color3);
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product2a =
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Q_INTERPOLATE (color2, color2, color2, product2a);
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product1b =
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Q_INTERPOLATE (color6, color6, color6, product1b);
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// product1a = color5;
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// product1b = color6;
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// product2a = color2;
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// product2b = color3;
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}
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product1a = product1a | (product1b << 16);
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product2a = product2a | (product2b << 16);
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*((u32 *) dP) = product1a;
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*((u32 *) (dP + dstPitch)) = product2a;
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// *xP = color5;
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bP += inc_bP;
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// xP += inc_bP;
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dP += sizeof (u32);
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} // end of for ( finish= width etc..)
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|
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srcPtr += srcPitch;
|
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dstPtr += dstPitch * 2;
|
|
// deltaPtr += srcPitch;
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|
} // endof: for (height; height; height--)
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}
|
|
}
|
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|
|
void _2xSaI (u8 *srcPtr, u32 srcPitch, u8 *deltaPtr,
|
|
u8 *dstPtr, u32 dstPitch, int width, int height)
|
|
{
|
|
u8 *dP;
|
|
u16 *bP;
|
|
u32 inc_bP;
|
|
|
|
{
|
|
inc_bP = 1;
|
|
|
|
u32 Nextline = srcPitch >> 1;
|
|
|
|
for (; height; height--)
|
|
{
|
|
bP = (u16 *) srcPtr;
|
|
dP = dstPtr;
|
|
|
|
for (u32 finish = width; finish; finish -= inc_bP)
|
|
{
|
|
|
|
register u32 colorA, colorB;
|
|
u32 colorC, colorD,
|
|
colorE, colorF, colorG, colorH,
|
|
colorI, colorJ, colorK, colorL,
|
|
|
|
colorM, colorN, colorO, colorP;
|
|
u32 product, product1, product2;
|
|
|
|
//---------------------------------------
|
|
// Map of the pixels: I|E F|J
|
|
// G|A B|K
|
|
// H|C D|L
|
|
// M|N O|P
|
|
colorI = *(bP - Nextline - 1);
|
|
colorE = *(bP - Nextline);
|
|
colorF = *(bP - Nextline + 1);
|
|
colorJ = *(bP - Nextline + 2);
|
|
|
|
colorG = *(bP - 1);
|
|
colorA = *(bP);
|
|
colorB = *(bP + 1);
|
|
colorK = *(bP + 2);
|
|
|
|
colorH = *(bP + Nextline - 1);
|
|
colorC = *(bP + Nextline);
|
|
colorD = *(bP + Nextline + 1);
|
|
colorL = *(bP + Nextline + 2);
|
|
|
|
colorM = *(bP + Nextline + Nextline - 1);
|
|
colorN = *(bP + Nextline + Nextline);
|
|
colorO = *(bP + Nextline + Nextline + 1);
|
|
colorP = *(bP + Nextline + Nextline + 2);
|
|
|
|
if ((colorA == colorD) && (colorB != colorC))
|
|
{
|
|
if (((colorA == colorE) && (colorB == colorL)) ||
|
|
((colorA == colorC) && (colorA == colorF)
|
|
&& (colorB != colorE) && (colorB == colorJ)))
|
|
{
|
|
product = colorA;
|
|
}
|
|
else
|
|
{
|
|
product = INTERPOLATE (colorA, colorB);
|
|
}
|
|
|
|
if (((colorA == colorG) && (colorC == colorO)) ||
|
|
((colorA == colorB) && (colorA == colorH)
|
|
&& (colorG != colorC) && (colorC == colorM)))
|
|
{
|
|
product1 = colorA;
|
|
}
|
|
else
|
|
{
|
|
product1 = INTERPOLATE (colorA, colorC);
|
|
}
|
|
|
|
product2 = colorA;
|
|
}
|
|
else if ((colorB == colorC) && (colorA != colorD))
|
|
{
|
|
if (((colorB == colorF) && (colorA == colorH)) ||
|
|
((colorB == colorE) && (colorB == colorD)
|
|
&& (colorA != colorF) && (colorA == colorI)))
|
|
{
|
|
product = colorB;
|
|
}
|
|
else
|
|
{
|
|
product = INTERPOLATE (colorA, colorB);
|
|
}
|
|
|
|
if (((colorC == colorH) && (colorA == colorF)) ||
|
|
((colorC == colorG) && (colorC == colorD)
|
|
&& (colorA != colorH) && (colorA == colorI)))
|
|
{
|
|
product1 = colorC;
|
|
}
|
|
else
|
|
{
|
|
product1 = INTERPOLATE (colorA, colorC);
|
|
}
|
|
|
|
product2 = colorB;
|
|
}
|
|
else if ((colorA == colorD) && (colorB == colorC))
|
|
{
|
|
if (colorA == colorB)
|
|
{
|
|
product = colorA;
|
|
product1 = colorA;
|
|
product2 = colorA;
|
|
}
|
|
else
|
|
{
|
|
register int r = 0;
|
|
|
|
product1 = INTERPOLATE (colorA, colorC);
|
|
product = INTERPOLATE (colorA, colorB);
|
|
|
|
r +=
|
|
GetResult1 (colorA, colorB, colorG, colorE,
|
|
colorI);
|
|
r +=
|
|
GetResult2 (colorB, colorA, colorK, colorF,
|
|
colorJ);
|
|
r +=
|
|
GetResult2 (colorB, colorA, colorH, colorN,
|
|
colorM);
|
|
r +=
|
|
GetResult1 (colorA, colorB, colorL, colorO,
|
|
colorP);
|
|
|
|
if (r > 0)
|
|
{
|
|
product2 = colorA;
|
|
}
|
|
else if (r < 0)
|
|
{
|
|
product2 = colorB;
|
|
}
|
|
else
|
|
{
|
|
product2 =
|
|
Q_INTERPOLATE (colorA, colorB, colorC,
|
|
colorD);
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
product2 = Q_INTERPOLATE (colorA, colorB, colorC, colorD);
|
|
|
|
if ((colorA == colorC) && (colorA == colorF)
|
|
&& (colorB != colorE) && (colorB == colorJ))
|
|
{
|
|
product = colorA;
|
|
}
|
|
else if ((colorB == colorE) && (colorB == colorD)
|
|
&& (colorA != colorF) && (colorA == colorI))
|
|
{
|
|
product = colorB;
|
|
}
|
|
else
|
|
{
|
|
product = INTERPOLATE (colorA, colorB);
|
|
}
|
|
|
|
if ((colorA == colorB) && (colorA == colorH)
|
|
&& (colorG != colorC) && (colorC == colorM))
|
|
{
|
|
product1 = colorA;
|
|
}
|
|
else if ((colorC == colorG) && (colorC == colorD)
|
|
&& (colorA != colorH) && (colorA == colorI))
|
|
{
|
|
product1 = colorC;
|
|
}
|
|
else
|
|
{
|
|
product1 = INTERPOLATE (colorA, colorC);
|
|
}
|
|
}
|
|
|
|
product = colorA | (product << 16);
|
|
product1 = product1 | (product2 << 16);
|
|
*((s32 *) dP) = product;
|
|
*((u32 *) (dP + dstPitch)) = product1;
|
|
|
|
bP += inc_bP;
|
|
dP += sizeof (u32);
|
|
} // end of for ( finish= width etc..)
|
|
|
|
srcPtr += srcPitch;
|
|
dstPtr += dstPitch * 2;
|
|
// deltaPtr += srcPitch;
|
|
} // endof: for (height; height; height--)
|
|
}
|
|
}
|
|
|
|
static u32 Bilinear (u32 A, u32 B, u32 x)
|
|
{
|
|
unsigned long areaA, areaB;
|
|
unsigned long result;
|
|
|
|
if (A == B)
|
|
{
|
|
return A;
|
|
}
|
|
|
|
areaB = (x >> 11) & 0x1f; // reduce 16 bit fraction to 5 bits
|
|
areaA = 0x20 - areaB;
|
|
|
|
A = (A & redblueMask) | ((A & greenMask) << 16);
|
|
B = (B & redblueMask) | ((B & greenMask) << 16);
|
|
|
|
result = ((areaA * A) + (areaB * B)) >> 5;
|
|
|
|
return (result & redblueMask) | ((result >> 16) & greenMask);
|
|
}
|
|
|
|
static u32 Bilinear4 (u32 A, u32 B, u32 C, u32 D, u32 x,
|
|
u32 y)
|
|
{
|
|
unsigned long areaA, areaB, areaC, areaD;
|
|
unsigned long result, xy;
|
|
|
|
x = (x >> 11) & 0x1f;
|
|
y = (y >> 11) & 0x1f;
|
|
xy = (x * y) >> 5;
|
|
|
|
A = (A & redblueMask) | ((A & greenMask) << 16);
|
|
B = (B & redblueMask) | ((B & greenMask) << 16);
|
|
C = (C & redblueMask) | ((C & greenMask) << 16);
|
|
D = (D & redblueMask) | ((D & greenMask) << 16);
|
|
|
|
areaA = 0x20 + xy - x - y;
|
|
areaB = x - xy;
|
|
areaC = y - xy;
|
|
areaD = xy;
|
|
|
|
result = ((areaA * A) + (areaB * B) + (areaC * C) + (areaD * D)) >> 5;
|
|
|
|
return (result & redblueMask) | ((result >> 16) & greenMask);
|
|
}
|
|
|
|
void Scale_2xSaI (u8 *srcPtr, u32 srcPitch, u8 * /* deltaPtr */,
|
|
u8 *dstPtr, u32 dstPitch,
|
|
u32 dstWidth, u32 dstHeight, int width, int height)
|
|
{
|
|
u8 *dP;
|
|
u16 *bP;
|
|
|
|
u32 w;
|
|
u32 h;
|
|
u32 dw;
|
|
u32 dh;
|
|
u32 hfinish;
|
|
u32 wfinish;
|
|
|
|
u32 Nextline = srcPitch >> 1;
|
|
|
|
wfinish = (width - 1) << 16; // convert to fixed point
|
|
dw = wfinish / (dstWidth - 1);
|
|
hfinish = (height - 1) << 16; // convert to fixed point
|
|
dh = hfinish / (dstHeight - 1);
|
|
|
|
for (h = 0; h < hfinish; h += dh)
|
|
{
|
|
u32 y1, y2;
|
|
|
|
y1 = h & 0xffff; // fraction part of fixed point
|
|
bP = (u16 *) (srcPtr + ((h >> 16) * srcPitch));
|
|
dP = dstPtr;
|
|
y2 = 0x10000 - y1;
|
|
|
|
w = 0;
|
|
|
|
for (; w < wfinish;)
|
|
{
|
|
u32 A, B, C, D;
|
|
u32 E, F, G, H;
|
|
u32 I, J, K, L;
|
|
u32 x1, x2, a1, f1, f2;
|
|
u32 position, product1;
|
|
|
|
position = w >> 16;
|
|
A = bP[position]; // current pixel
|
|
B = bP[position + 1]; // next pixel
|
|
C = bP[position + Nextline];
|
|
D = bP[position + Nextline + 1];
|
|
E = bP[position - Nextline];
|
|
F = bP[position - Nextline + 1];
|
|
G = bP[position - 1];
|
|
H = bP[position + Nextline - 1];
|
|
I = bP[position + 2];
|
|
J = bP[position + Nextline + 2];
|
|
K = bP[position + Nextline + Nextline];
|
|
L = bP[position + Nextline + Nextline + 1];
|
|
|
|
x1 = w & 0xffff; // fraction part of fixed point
|
|
x2 = 0x10000 - x1;
|
|
|
|
/*0*/
|
|
if (A == B && C == D && A == C)
|
|
{
|
|
product1 = A;
|
|
}
|
|
else /*1*/ if (A == D && B != C)
|
|
{
|
|
f1 = (x1 >> 1) + (0x10000 >> 2);
|
|
f2 = (y1 >> 1) + (0x10000 >> 2);
|
|
|
|
if (y1 <= f1 && A == J && A != E) // close to B
|
|
{
|
|
a1 = f1 - y1;
|
|
product1 = Bilinear (A, B, a1);
|
|
}
|
|
else if (y1 >= f1 && A == G && A != L) // close to C
|
|
{
|
|
a1 = y1 - f1;
|
|
product1 = Bilinear (A, C, a1);
|
|
}
|
|
else if (x1 >= f2 && A == E && A != J) // close to B
|
|
{
|
|
a1 = x1 - f2;
|
|
product1 = Bilinear (A, B, a1);
|
|
}
|
|
else if (x1 <= f2 && A == L && A != G) // close to C
|
|
{
|
|
a1 = f2 - x1;
|
|
product1 = Bilinear (A, C, a1);
|
|
}
|
|
else if (y1 >= x1) // close to C
|
|
{
|
|
a1 = y1 - x1;
|
|
product1 = Bilinear (A, C, a1);
|
|
}
|
|
else if (y1 <= x1) // close to B
|
|
{
|
|
a1 = x1 - y1;
|
|
product1 = Bilinear (A, B, a1);
|
|
}
|
|
}
|
|
else
|
|
|
|
/*2*/
|
|
if (B == C && A != D)
|
|
{
|
|
f1 = (x1 >> 1) + (0x10000 >> 2);
|
|
f2 = (y1 >> 1) + (0x10000 >> 2);
|
|
|
|
if (y2 >= f1 && B == H && B != F) // close to A
|
|
{
|
|
a1 = y2 - f1;
|
|
product1 = Bilinear (B, A, a1);
|
|
}
|
|
else if (y2 <= f1 && B == I && B != K) // close to D
|
|
{
|
|
a1 = f1 - y2;
|
|
product1 = Bilinear (B, D, a1);
|
|
}
|
|
else if (x2 >= f2 && B == F && B != H) // close to A
|
|
{
|
|
a1 = x2 - f2;
|
|
product1 = Bilinear (B, A, a1);
|
|
}
|
|
else if (x2 <= f2 && B == K && B != I) // close to D
|
|
{
|
|
a1 = f2 - x2;
|
|
product1 = Bilinear (B, D, a1);
|
|
}
|
|
else if (y2 >= x1) // close to A
|
|
{
|
|
a1 = y2 - x1;
|
|
product1 = Bilinear (B, A, a1);
|
|
}
|
|
else if (y2 <= x1) // close to D
|
|
{
|
|
a1 = x1 - y2;
|
|
product1 = Bilinear (B, D, a1);
|
|
}
|
|
}
|
|
/*3*/
|
|
else
|
|
{
|
|
product1 = Bilinear4 (A, B, C, D, x1, y1);
|
|
}
|
|
|
|
//end First Pixel
|
|
*(u32 *) dP = product1;
|
|
dP += 2;
|
|
w += dw;
|
|
}
|
|
|
|
dstPtr += dstPitch;
|
|
}
|
|
}
|
|
|