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SDL'ified hq4x filter. (Doesn't work right yet)

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This commit is contained in:
William Kendrick 2003-12-20 19:45:38 +00:00
parent a6427c94ee
commit 7f9fb79d9f
6 changed files with 3705 additions and 3434 deletions
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19
src/hqxx.c
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@ -1,5 +1,5 @@
/*
hqNx filter look-up table init
hqNx filter look-up table init and helper functions
Copyright (C) 2003 MaxSt ( maxst@hiend3d.com )
Library-ified by Bill Kendrick <bill@newbreedsoftware.com>
@ -24,6 +24,7 @@
*/
#include "SDL.h"
#include "hqxx.h"
@ -56,17 +57,17 @@ void InitLUTs(int * LUT16to32, int * RGBtoYUV)
}
}
inline void Interp1(unsigned char * pc, int c1, int c2)
inline void Interp1(Uint8 * pc, int c1, int c2)
{
*((int*)pc) = (c1*3+c2) >> 2;
}
inline void Interp2(unsigned char * pc, int c1, int c2, int c3)
inline void Interp2(Uint8 * pc, int c1, int c2, int c3)
{
*((int*)pc) = (c1*2+c2+c3) >> 2;
}
inline void Interp3(unsigned char * pc, int c1, int c2)
inline void Interp3(Uint8 * pc, int c1, int c2)
{
//*((int*)pc) = (c1*7+c2)/8;
@ -74,7 +75,7 @@ inline void Interp3(unsigned char * pc, int c1, int c2)
(((c1 & 0xFF00FF)*7 + (c2 & 0xFF00FF) ) & 0x07F807F8)) >> 3;
}
inline void Interp4(unsigned char * pc, int c1, int c2, int c3)
inline void Interp4(Uint8 * pc, int c1, int c2, int c3)
{
//*((int*)pc) = (c1*2+(c2+c3)*7)/16;
@ -82,12 +83,12 @@ inline void Interp4(unsigned char * pc, int c1, int c2, int c3)
(((c1 & 0xFF00FF)*2 + ((c2 & 0xFF00FF) + (c3 & 0xFF00FF))*7 ) & 0x0FF00FF0)) >> 4;
}
inline void Interp5(unsigned char * pc, int c1, int c2)
inline void Interp5(Uint8 * pc, int c1, int c2)
{
*((int*)pc) = (c1+c2) >> 1;
}
inline void Interp6(unsigned char * pc, int c1, int c2, int c3)
inline void Interp6(Uint8 * pc, int c1, int c2, int c3)
{
//*((int*)pc) = (c1*5+c2*2+c3)/8;
@ -95,7 +96,7 @@ inline void Interp6(unsigned char * pc, int c1, int c2, int c3)
(((c1 & 0xFF00FF)*5 + (c2 & 0xFF00FF)*2 + (c3 & 0xFF00FF) ) & 0x07F807F8)) >> 3;
}
inline void Interp7(unsigned char * pc, int c1, int c2, int c3)
inline void Interp7(Uint8 * pc, int c1, int c2, int c3)
{
//*((int*)pc) = (c1*6+c2+c3)/8;
@ -103,7 +104,7 @@ inline void Interp7(unsigned char * pc, int c1, int c2, int c3)
(((c1 & 0xFF00FF)*6 + (c2 & 0xFF00FF) + (c3 & 0xFF00FF) ) & 0x07F807F8)) >> 3;
}
inline void Interp8(unsigned char * pc, int c1, int c2)
inline void Interp8(Uint8 * pc, int c1, int c2)
{
//*((int*)pc) = (c1*5+c2*3)/8;