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RetroArch/hqflt/hq.c
Themaister 9b9820e4c6 Updates.
2010-08-19 16:40:32 +02:00

556 lines
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/* This source code is Copyright (C) 2006-2009 by WolfWings. */
/* It is, however, released under the ISC license. */
/* en.wikipedia.org/wiki/ISC_Licence */
/* --------------------------------------------------------- */
/* It is a formula-level rederiviation of the HQ2x technique */
/* and is, thus, not a derivative work of the original code, */
/* only the original equations behind the code. */
#include <stdlib.h>
#include <string.h>
#include "pastlib.h"
static const uint8_t blends_2x[14*4] = {
/* 5 2 4 1 */
8, 4, 4, 0,
8, 4, 0, 4,
8, 0, 4, 4,
16, 0, 0, 0,
12, 4, 0, 0,
12, 0, 4, 0,
12, 0, 0, 4,
4, 6, 6, 0, /* Interp9 */
12, 2, 2, 0, /* Interp7 */
14, 1, 1, 0, /* Interp10*/
10, 4, 2, 0, /* Interp6 */
10, 2, 4, 0, /* Interp6 */
4, 6, 6, 0, /* Added for secondary blending used in HQ4x */
8, 4, 4, 0, /* Added for secondary blending used in HQ4x */
};
static const uint8_t blends_4x[14*16] = {
/* 5 2 4 1 5 2 4 1 5 2 4 1 5 2 4 1 */
8, 4, 4, 0, 10, 4, 2, 0, 10, 2, 4, 0, 12, 2, 2, 0, /* Needs to be split. B */
10, 0, 0, 6, 10, 4, 0, 2, 12, 0, 0, 4, 14, 0, 0, 2,
10, 0, 0, 6, 10, 0, 4, 2, 12, 0, 0, 4, 14, 0, 0, 2,
16, 0, 0, 0, 16, 0, 0, 0, 16, 0, 0, 0, 16, 0, 0, 0, /* Solid colors */
10, 6, 0, 0, 10, 6, 0, 0, 14, 2, 0, 0, 14, 2, 0, 0,
10, 0, 6, 0, 14, 0, 2, 0, 10, 0, 6, 0, 14, 0, 2, 0,
10, 0, 0, 6, 12, 0, 0, 4, 12, 0, 0, 4, 14, 0, 0, 2,
0, 8, 8, 0, 4, 8, 4, 0, 0, 6,10, 0, 12, 2, 2, 0, /* Needs to be split. A */
8, 4, 4, 0, 12, 4, 0, 0, 12, 0, 4, 0, 16, 0, 0, 0,
8, 4, 4, 0, 16, 0, 0, 0, 16, 0, 0, 0, 16, 0, 0, 0,
12, 4, 0, 0, 4,12, 0, 0, 10, 0, 4, 0, 14, 0, 2, 0,
12, 0, 4, 0, 10, 4, 0, 0, 4, 0,12, 0, 14, 2, 0, 0,
0, 8, 8, 0, 0,10, 6, 0, 4, 4, 8, 0, 12, 2, 2, 0, /* Needs to be split. A */
0, 8, 8, 0, 8, 8, 0, 0, 8, 0, 8, 0, 16, 0, 0, 0, /* Needs to be split. B */
};
static const uint8_t tree_hq[0x800] = {
/* 6 6 6 6 6 6 6 6
* 2 2 2 2 2 2 2 2
* 4 4 4 4 4 4 4 4
* 8 8 8 8 8 8 8 8
*/
0, 0, 2, 2, 1, 1,13,13, 0, 0, 2, 2, 1, 1,13, 8, /* */
0, 0, 2, 2, 1, 1,12, 6, 0, 0, 2, 2, 1, 1, 8, 8, /* 3 */
0, 0, 5,10, 4, 4,13,13, 0, 0, 5, 5,11, 4,13,13, /* 1 */
0, 0, 5,10, 4, 4,12,13, 0, 0, 5, 5,11, 4,13,13, /* 31 */
0, 0, 2, 2, 1, 1, 7, 8, 0, 0, 2, 2, 1, 1, 6, 8, /* 7 */
0, 0, 2, 2, 1, 1, 8, 6, 0, 0, 2, 2, 1, 1, 6, 6, /* 3 7 */
0, 0, 5,10, 4, 4, 7,13, 0, 0, 5, 5,11, 4,13,13, /* 17 */
0, 0, 5,10, 4, 4, 9, 9, 0, 0, 5,10,11,11, 9, 9, /* 317 */
0, 0, 2, 2, 1, 1,13, 8, 0, 0, 2, 2, 1, 1, 8, 8, /* 9 */
0, 0, 2, 2, 1, 1,12, 8, 0, 0, 2, 2, 1, 1, 8, 6, /* 3 9 */
0, 0, 5, 5, 4, 4,13,13, 0, 0, 5, 5, 4, 4,13,13, /* 1 9 */
0, 0, 5, 5, 4, 4,12,13, 0, 0, 5, 5, 4, 4,12,13, /* 31 9 */
0, 0, 2, 2, 1, 1, 7, 8, 0, 0, 2, 2, 1, 1, 8, 6, /* 79 */
0, 0, 2, 2, 1, 1, 8, 6, 0, 0, 2, 2, 1, 1, 6, 6, /* 3 79 */
0, 0, 5, 5, 4, 4, 7, 7, 0, 0, 5, 5, 4, 4,13,13, /* 179 */
0, 0, 5, 5, 4, 4, 9, 9, 0, 0, 5, 5, 4, 4, 9, 9, /* 3179 */
/* DIFF26 */
0, 0, 2, 2, 1, 1,13,13, 0, 0, 2, 2, 1, 1,13, 8,
0, 0, 2, 2, 1, 1,12, 6, 0, 0, 2, 2, 1, 1, 8, 8,
0, 0, 5, 5, 4, 4,13,13, 0, 0, 5, 5,11, 4,13,13,
0, 0, 5, 5, 4, 4,12,13, 0, 0, 5, 5,11, 4,13,13,
0, 0, 2, 2, 1, 1, 7, 8, 0, 0, 2, 2, 1, 1, 6, 8,
0, 0, 2, 2, 1, 1, 8, 6, 0, 0, 2, 2, 1, 1, 6, 6,
0, 0, 5, 5, 4, 4, 7,13, 0, 0, 5, 5,11, 4,13,13,
0, 0, 5, 5, 4, 4, 9, 9, 0, 0, 5, 5,11,11, 9, 9,
0, 0, 2, 2, 1, 1,13, 8, 0, 0, 2, 2, 1, 1, 8, 8,
0, 0, 2, 2, 1, 1,12, 8, 0, 0, 2, 2, 1, 1, 8, 6,
0, 0, 5, 5, 4, 4,13,13, 0, 0, 5, 5, 4, 4,13,13,
0, 0, 5, 5, 4, 4,12,13, 0, 0, 5, 5, 4, 4,12,13,
0, 0, 2, 2, 1, 1, 7, 8, 0, 0, 2, 2, 1, 1, 8, 6,
0, 0, 2, 2, 1, 1, 8, 6, 0, 0, 2, 2, 1, 1, 6, 6,
0, 0, 5, 5, 4, 4, 7, 7, 0, 0, 5, 5, 4, 4,13,13,
0, 0, 5, 5, 4, 4, 9, 9, 0, 0, 5, 5, 4, 4, 9, 9,
/* DIFF24 */
0, 0, 2, 2, 1, 1, 6, 3, 0, 0, 2, 2, 1, 1, 3, 6,
0, 0, 2, 2, 1, 1, 6, 6, 0, 0, 2, 2, 1, 1, 6, 6,
0, 0, 5,10, 4, 4, 3, 3, 0, 0, 5, 5,11, 4, 3, 3,
0, 0, 5,10, 4, 4, 3, 3, 0, 0, 5, 5,11, 4, 3, 3,
0, 0, 2, 2, 1, 1, 6, 6, 0, 0, 2, 2, 1, 1, 6, 6,
0, 0, 2, 2, 1, 1, 6, 6, 0, 0, 2, 2, 1, 1, 6, 6,
0, 0, 5,10, 4, 4, 3, 3, 0, 0, 5, 5,11, 4, 3, 3,
0, 0, 5,10, 4, 4, 3, 3, 0, 0, 5,10,11,11, 3, 3,
0, 0, 2, 2, 1, 1, 6, 6, 0, 0, 2, 2, 1, 1, 6, 6,
0, 0, 2, 2, 1, 1, 6, 6, 0, 0, 2, 2, 1, 1, 6, 6,
0, 0, 5, 5, 4, 4, 3, 3, 0, 0, 5, 5, 4, 4, 3, 3,
0, 0, 5, 5, 4, 4, 3, 3, 0, 0, 5, 5, 4, 4, 3, 3,
0, 0, 2, 2, 1, 1, 6, 6, 0, 0, 2, 2, 1, 1, 6, 6,
0, 0, 2, 2, 1, 1, 6, 6, 0, 0, 2, 2, 1, 1, 6, 6,
0, 0, 5, 5, 4, 4, 3, 3, 0, 0, 5, 5, 4, 4, 3, 3,
0, 0, 5, 5, 4, 4, 3, 3, 0, 0, 5, 5, 4, 4, 3, 3,
/* DIFF26 DIFF24 */
0, 0, 2, 2, 1, 1, 6, 3, 0, 0, 2, 2, 1, 1, 3, 6,
0, 0, 2, 2, 1, 1, 6, 6, 0, 0, 2, 2, 1, 1, 6, 6,
0, 0, 5, 5, 4, 4, 3, 3, 0, 0, 5, 5,11, 4, 3, 3,
0, 0, 5, 5, 4, 4, 3, 3, 0, 0, 5, 5,11, 4, 3, 3,
0, 0, 2, 2, 1, 1, 6, 6, 0, 0, 2, 2, 1, 1, 6, 6,
0, 0, 2, 2, 1, 1, 6, 6, 0, 0, 2, 2, 1, 1, 6, 6,
0, 0, 5, 5, 4, 4, 3, 3, 0, 0, 5, 5,11, 4, 3, 3,
0, 0, 5, 5, 4, 4, 3, 3, 0, 0, 5, 5,11,11, 3, 3,
0, 0, 2, 2, 1, 1, 6, 6, 0, 0, 2, 2, 1, 1, 6, 6,
0, 0, 2, 2, 1, 1, 6, 6, 0, 0, 2, 2, 1, 1, 6, 6,
0, 0, 5, 5, 4, 4, 3, 3, 0, 0, 5, 5, 4, 4, 3, 3,
0, 0, 5, 5, 4, 4, 3, 3, 0, 0, 5, 5, 4, 4, 3, 3,
0, 0, 2, 2, 1, 1, 6, 6, 0, 0, 2, 2, 1, 1, 6, 6,
0, 0, 2, 2, 1, 1, 6, 6, 0, 0, 2, 2, 1, 1, 6, 6,
0, 0, 5, 5, 4, 4, 3, 3, 0, 0, 5, 5, 4, 4, 3, 3,
0, 0, 5, 5, 4, 4, 3, 3, 0, 0, 5, 5, 4, 4, 3, 3,
/* DIFF84 */
0, 0, 2, 2, 1, 1,13,13, 0, 0, 2, 2, 1, 1,13, 8,
0, 0, 2, 2, 1, 1,12, 6, 0, 0, 2, 2, 1, 1, 8, 8,
0, 0, 5,10, 4, 4,13,13, 0, 0, 5, 5, 4, 4,13,13,
0, 0, 5,10, 4, 4,12,13, 0, 0, 5, 5, 4, 4,13,13,
0, 0, 2, 2, 1, 1, 7, 8, 0, 0, 2, 2, 1, 1, 6, 8,
0, 0, 2, 2, 1, 1, 8, 6, 0, 0, 2, 2, 1, 1, 6, 6,
0, 0, 5,10, 4, 4, 7,13, 0, 0, 5, 5, 4, 4,13,13,
0, 0, 5,10, 4, 4, 9, 9, 0, 0, 5,10, 4, 4, 9, 9,
0, 0, 2, 2, 1, 1,13, 8, 0, 0, 2, 2, 1, 1, 8, 8,
0, 0, 2, 2, 1, 1,12, 8, 0, 0, 2, 2, 1, 1, 8, 6,
0, 0, 5, 5, 4, 4,13,13, 0, 0, 5, 5, 4, 4,13,13,
0, 0, 5, 5, 4, 4,12,13, 0, 0, 5, 5, 4, 4,12,13,
0, 0, 2, 2, 1, 1, 7, 8, 0, 0, 2, 2, 1, 1, 8, 6,
0, 0, 2, 2, 1, 1, 8, 6, 0, 0, 2, 2, 1, 1, 6, 6,
0, 0, 5, 5, 4, 4, 7, 7, 0, 0, 5, 5, 4, 4,13,13,
0, 0, 5, 5, 4, 4, 9, 9, 0, 0, 5, 5, 4, 4, 9, 9,
/* DIFF26 DIFF84 */
0, 0, 2, 2, 1, 1,13,13, 0, 0, 2, 2, 1, 1,13, 8,
0, 0, 2, 2, 1, 1,12, 6, 0, 0, 2, 2, 1, 1, 8, 8,
0, 0, 5, 5, 4, 4,13,13, 0, 0, 5, 5, 4, 4,13,13,
0, 0, 5, 5, 4, 4,12,13, 0, 0, 5, 5, 4, 4,13,13,
0, 0, 2, 2, 1, 1, 7, 8, 0, 0, 2, 2, 1, 1, 6, 8,
0, 0, 2, 2, 1, 1, 8, 6, 0, 0, 2, 2, 1, 1, 6, 6,
0, 0, 5, 5, 4, 4, 7,13, 0, 0, 5, 5, 4, 4,13,13,
0, 0, 5, 5, 4, 4, 9, 9, 0, 0, 5, 5, 4, 4, 9, 9,
0, 0, 2, 2, 1, 1,13, 8, 0, 0, 2, 2, 1, 1, 8, 8,
0, 0, 2, 2, 1, 1,12, 8, 0, 0, 2, 2, 1, 1, 8, 6,
0, 0, 5, 5, 4, 4,13,13, 0, 0, 5, 5, 4, 4,13,13,
0, 0, 5, 5, 4, 4,12,13, 0, 0, 5, 5, 4, 4,12,13,
0, 0, 2, 2, 1, 1, 7, 8, 0, 0, 2, 2, 1, 1, 8, 6,
0, 0, 2, 2, 1, 1, 8, 6, 0, 0, 2, 2, 1, 1, 6, 6,
0, 0, 5, 5, 4, 4, 7, 7, 0, 0, 5, 5, 4, 4,13,13,
0, 0, 5, 5, 4, 4, 9, 9, 0, 0, 5, 5, 4, 4, 9, 9,
/* DIFF24 DIFF84 */
0, 0, 2, 2, 1, 1, 6, 3, 0, 0, 2, 2, 1, 1, 3, 6,
0, 0, 2, 2, 1, 1, 6, 6, 0, 0, 2, 2, 1, 1, 6, 6,
0, 0, 5,10, 4, 4, 3, 3, 0, 0, 5, 5, 4, 4, 3, 3,
0, 0, 5,10, 4, 4, 3, 3, 0, 0, 5, 5, 4, 4, 3, 3,
0, 0, 2, 2, 1, 1, 6, 6, 0, 0, 2, 2, 1, 1, 6, 6,
0, 0, 2, 2, 1, 1, 6, 6, 0, 0, 2, 2, 1, 1, 6, 6,
0, 0, 5,10, 4, 4, 3, 3, 0, 0, 5, 5, 4, 4, 3, 3,
0, 0, 5,10, 4, 4, 3, 3, 0, 0, 5,10, 4, 4, 3, 3,
0, 0, 2, 2, 1, 1, 6, 6, 0, 0, 2, 2, 1, 1, 6, 6,
0, 0, 2, 2, 1, 1, 6, 6, 0, 0, 2, 2, 1, 1, 6, 6,
0, 0, 5, 5, 4, 4, 3, 3, 0, 0, 5, 5, 4, 4, 3, 3,
0, 0, 5, 5, 4, 4, 3, 3, 0, 0, 5, 5, 4, 4, 3, 3,
0, 0, 2, 2, 1, 1, 6, 6, 0, 0, 2, 2, 1, 1, 6, 6,
0, 0, 2, 2, 1, 1, 6, 6, 0, 0, 2, 2, 1, 1, 6, 6,
0, 0, 5, 5, 4, 4, 3, 3, 0, 0, 5, 5, 4, 4, 3, 3,
0, 0, 5, 5, 4, 4, 3, 3, 0, 0, 5, 5, 4, 4, 3, 3,
/* DIFF26 DIFF24 DIFF84 */
0, 0, 2, 2, 1, 1, 6, 3, 0, 0, 2, 2, 1, 1, 3, 6,
0, 0, 2, 2, 1, 1, 6, 6, 0, 0, 2, 2, 1, 1, 6, 6,
0, 0, 5, 5, 4, 4, 3, 3, 0, 0, 5, 5, 4, 4, 3, 3,
0, 0, 5, 5, 4, 4, 3, 3, 0, 0, 5, 5, 4, 4, 3, 3,
0, 0, 2, 2, 1, 1, 6, 6, 0, 0, 2, 2, 1, 1, 6, 6,
0, 0, 2, 2, 1, 1, 6, 6, 0, 0, 2, 2, 1, 1, 6, 6,
0, 0, 5, 5, 4, 4, 3, 3, 0, 0, 5, 5, 4, 4, 3, 3,
0, 0, 5, 5, 4, 4, 3, 3, 0, 0, 5, 5, 4, 4, 3, 3,
0, 0, 2, 2, 1, 1, 6, 6, 0, 0, 2, 2, 1, 1, 6, 6,
0, 0, 2, 2, 1, 1, 6, 6, 0, 0, 2, 2, 1, 1, 6, 6,
0, 0, 5, 5, 4, 4, 3, 3, 0, 0, 5, 5, 4, 4, 3, 3,
0, 0, 5, 5, 4, 4, 3, 3, 0, 0, 5, 5, 4, 4, 3, 3,
0, 0, 2, 2, 1, 1, 6, 6, 0, 0, 2, 2, 1, 1, 6, 6,
0, 0, 2, 2, 1, 1, 6, 6, 0, 0, 2, 2, 1, 1, 6, 6,
0, 0, 5, 5, 4, 4, 3, 3, 0, 0, 5, 5, 4, 4, 3, 3,
0, 0, 5, 5, 4, 4, 3, 3, 0, 0, 5, 5, 4, 4, 3, 3};
#define RB(y,u,v) (((y)&0x3FF)<<22)|(((u)&0x3FF)<<11)|((v)&0x3FF)
#define GO(y,v) ((((y)+64)&0x3FF)<<22)|(16<<11)|(((v)+16)&0x3FF)
static const uint32_t DiffTable[128] = {
RB(-85, 160, 80), RB(-83, 155, 77), RB(-80, 150, 75), RB(-77, 145, 72),
RB(-75, 140, 70), RB(-72, 135, 67), RB(-69, 130, 65), RB(-67, 125, 62),
RB(-64, 120, 60), RB(-61, 115, 57), RB(-59, 110, 55), RB(-56, 105, 52),
RB(-53, 100, 50), RB(-51, 95, 47), RB(-48, 90, 45), RB(-45, 85, 42),
RB(-43, 80, 40), RB(-40, 75, 37), RB(-37, 70, 35), RB(-35, 65, 32),
RB(-32, 60, 30), RB(-29, 55, 27), RB(-27, 50, 25), RB(-24, 45, 22),
RB(-21, 40, 20), RB(-19, 35, 17), RB(-16, 30, 15), RB(-13, 25, 12),
RB(-11, 20, 10), RB( -8, 15, 7), RB( -5, 10, 5), RB( -3, 5, 2),
RB( 0, 0, 0), RB( 2, -5, -2), RB( 5, -10, -5), RB( 7, -15, -7),
RB( 10, -20, -10), RB( 13, -25, -12), RB( 15, -30, -15), RB( 18, -35, -17),
RB( 21, -40, -20), RB( 23, -45, -22), RB( 26, -50, -25), RB( 29, -55, -27),
RB( 31, -60, -30), RB( 34, -65, -32), RB( 37, -70, -35), RB( 39, -75, -37),
RB( 42, -80, -40), RB( 45, -85, -42), RB( 47, -90, -45), RB( 50, -95, -47),
RB( 53,-100, -50), RB( 55,-105, -52), RB( 58,-110, -55), RB( 61,-115, -57),
RB( 63,-120, -60), RB( 66,-125, -62), RB( 69,-130, -65), RB( 71,-135, -67),
RB( 74,-140, -70), RB( 77,-145, -72), RB( 79,-150, -75), RB( 82,-155, -77),
GO(-84, -160), GO(-81, -155), GO(-78, -150), GO(-76, -145),
GO(-73, -140), GO(-70, -135), GO(-68, -130), GO(-65, -125),
GO(-63, -120), GO(-60, -115), GO(-57, -110), GO(-55, -105),
GO(-52, -100), GO(-49, -95), GO(-47, -90), GO(-44, -85),
GO(-42, -80), GO(-39, -75), GO(-36, -70), GO(-34, -65),
GO(-31, -60), GO(-28, -55), GO(-26, -50), GO(-23, -45),
GO(-21, -40), GO(-18, -35), GO(-15, -30), GO(-13, -25),
GO(-10, -20), GO( -7, -15), GO( -5, -10), GO( -2, -5),
GO( 0, 0), GO( 2, 4), GO( 5, 9), GO( 7, 14),
GO( 10, 19), GO( 13, 24), GO( 15, 29), GO( 18, 34),
GO( 21, 39), GO( 23, 44), GO( 26, 49), GO( 28, 54),
GO( 31, 59), GO( 34, 64), GO( 36, 69), GO( 39, 74),
GO( 42, 79), GO( 44, 84), GO( 47, 89), GO( 49, 94),
GO( 52, 99), GO( 55, 104), GO( 57, 109), GO( 60, 114),
GO( 63, 119), GO( 65, 124), GO( 68, 129), GO( 70, 134),
GO( 73, 139), GO( 76, 144), GO( 78, 149), GO( 81, 154)};
inline static int ExpandedDiff (uint32_t c0, uint32_t c1) {
uint32_t r, g;
g = c0;
g += 0x4008020;
g -= c1;
r = DiffTable[(int)((unsigned char)g) + 0];
r ^= (0x3FF << 11);
g >>= 10;
r += DiffTable[(int)((unsigned char)g) + 0];
g >>= 11;
r += DiffTable[(int)((unsigned char)g) + 64];
r &= 0xE01F03E0;
return r;
}
#define DIFF56 0x001
#define DIFF52 0x002
#define DIFF54 0x004
#define DIFF58 0x008
#define DIFF53 0x010
#define DIFF51 0x020
#define DIFF57 0x040
#define DIFF59 0x080
#define DIFF26 0x100
#define DIFF24 0x200
#define DIFF84 0x400
#define DIFF86 0x800
/* lastLineDiffs is previous line's 52, 53, 26, all >> 1 */
static uint8_t lastLineDiffs[__PAST_LIBRARY_WIDTH];
#define RotatePattern(x) ((((x) & 0x777) << 1) | (((x) & 0x888) >> 3))
void ProcessHQ2x(const pixel * restrict in, pixel * restrict out) {
signed int y, x;
unsigned int pattern, newpattern;
uint32_t pixels[9];
int prevline, nextline;
memset(lastLineDiffs, 0, sizeof(lastLineDiffs));
prevline = 1;
nextline = 1 + __PAST_LIBRARY_WIDTH;
y = __PAST_LIBRARY_HEIGHT - 1;
do {
pixels[1-1] =
pixels[2-1] = RGBUnpack(in[prevline-1]); /* Pixel 2 */
pixels[3-1] = RGBUnpack(in[prevline ]); /* Pixel 3 */
pixels[4-1] =
pixels[5-1] = RGBUnpack(in[ 0]); /* Pixel 5 */
pixels[6-1] = RGBUnpack(in[ 1]); /* Pixel 6 */
pixels[7-1] =
pixels[8-1] = RGBUnpack(in[nextline-1]); /* Pixel 8 */
pixels[9-1] = RGBUnpack(in[nextline ]); /* Pixel 9 */
pattern = 0;
x = __PAST_LIBRARY_WIDTH - 1;
do {
newpattern = 0;
if (pattern & DIFF26) newpattern |= DIFF51;
if (pattern & DIFF56) newpattern |= DIFF54;
if (pattern & DIFF86) newpattern |= DIFF57;
if (pattern & DIFF53) newpattern |= DIFF24;
if (pattern & DIFF59) newpattern |= DIFF84;
if (lastLineDiffs[x] & (DIFF52 >> 1)) newpattern |= DIFF58;
if (lastLineDiffs[x] & (DIFF26 >> 1)) newpattern |= DIFF59;
if (lastLineDiffs[x] & (DIFF53 >> 1)) newpattern |= DIFF86;
pattern = newpattern;
if (ExpandedDiff(pixels[5-1], pixels[2-1])) pattern |= DIFF52;
if (ExpandedDiff(pixels[5-1], pixels[3-1])) pattern |= DIFF53;
if (ExpandedDiff(pixels[5-1], pixels[6-1])) pattern |= DIFF56;
if (ExpandedDiff(pixels[2-1], pixels[6-1])) pattern |= DIFF26;
lastLineDiffs[x] = pattern >> 1;
newpattern = tree_hq[pattern & 0x7FF];
pattern = RotatePattern(pattern);
out[ 0] =
RGBPack(((pixels[5-1] * blends_2x[(newpattern * 4) + 0]) +
(pixels[2-1] * blends_2x[(newpattern * 4) + 1]) +
(pixels[4-1] * blends_2x[(newpattern * 4) + 2]) +
(pixels[1-1] * blends_2x[(newpattern * 4) + 3])) / 16);
newpattern = tree_hq[pattern & 0x7FF];
pattern = RotatePattern(pattern);
out[ 1] =
RGBPack(((pixels[5-1] * blends_2x[(newpattern * 4) + 0]) +
(pixels[6-1] * blends_2x[(newpattern * 4) + 1]) +
(pixels[2-1] * blends_2x[(newpattern * 4) + 2]) +
(pixels[3-1] * blends_2x[(newpattern * 4) + 3])) / 16);
newpattern = tree_hq[pattern & 0x7FF];
pattern = RotatePattern(pattern);
out[(__PAST_LIBRARY_WIDTH*2)+1] =
RGBPack(((pixels[5-1] * blends_2x[(newpattern * 4) + 0]) +
(pixels[8-1] * blends_2x[(newpattern * 4) + 1]) +
(pixels[6-1] * blends_2x[(newpattern * 4) + 2]) +
(pixels[9-1] * blends_2x[(newpattern * 4) + 3])) / 16);
newpattern = tree_hq[pattern & 0x7FF];
pattern = RotatePattern(pattern);
out[(__PAST_LIBRARY_WIDTH*2) ] =
RGBPack(((pixels[5-1] * blends_2x[(newpattern * 4) + 0]) +
(pixels[4-1] * blends_2x[(newpattern * 4) + 1]) +
(pixels[8-1] * blends_2x[(newpattern * 4) + 2]) +
(pixels[7-1] * blends_2x[(newpattern * 4) + 3])) / 16);
out += 2;
in++;
x--;
if (x == 0) {
pixels[1-1] = pixels[2-1];
pixels[2-1] = pixels[3-1];
pixels[4-1] = pixels[5-1];
pixels[5-1] = pixels[6-1];
pixels[7-1] = pixels[8-1];
pixels[8-1] = pixels[9-1];
continue;
}
pixels[1-1] = pixels[2-1];
pixels[2-1] = pixels[3-1];
pixels[3-1] = RGBUnpack(in[prevline]); /* Pixel 3 */
pixels[4-1] = pixels[5-1];
pixels[5-1] = pixels[6-1];
pixels[6-1] = RGBUnpack(in[1 ]); /* Pixel 6 */
pixels[7-1] = pixels[8-1];
pixels[8-1] = pixels[9-1];
pixels[9-1] = RGBUnpack(in[nextline]); /* Pixel 9 */
} while (x >= 0);
prevline = 1 - __PAST_LIBRARY_WIDTH;
out += (__PAST_LIBRARY_WIDTH * 2);
y--;
if (y > 0) {
continue;
}
nextline = 0;
} while (y >= 0);
}
void ProcessHQ4x(const pixel * restrict in, pixel * restrict out) {
signed int y, x;
unsigned int pattern, newpattern;
uint32_t pixels[9];
int prevline, nextline;
memset(lastLineDiffs, 0, sizeof(lastLineDiffs));
prevline = 1;
nextline = 1 + __PAST_LIBRARY_WIDTH;
y = __PAST_LIBRARY_HEIGHT - 1;
do {
pixels[1-1] =
pixels[2-1] = RGBUnpack(in[prevline-1]); /* Pixel 2 */
pixels[3-1] = RGBUnpack(in[prevline ]); /* Pixel 3 */
pixels[4-1] =
pixels[5-1] = RGBUnpack(in[ 0]); /* Pixel 5 */
pixels[6-1] = RGBUnpack(in[ 1]); /* Pixel 6 */
pixels[7-1] =
pixels[8-1] = RGBUnpack(in[nextline-1]); /* Pixel 8 */
pixels[9-1] = RGBUnpack(in[nextline ]); /* Pixel 9 */
pattern = 0;
x = __PAST_LIBRARY_WIDTH - 1;
do {
newpattern = 0;
if (pattern & DIFF26) newpattern |= DIFF51;
if (pattern & DIFF56) newpattern |= DIFF54;
if (pattern & DIFF86) newpattern |= DIFF57;
if (pattern & DIFF53) newpattern |= DIFF24;
if (pattern & DIFF59) newpattern |= DIFF84;
if (lastLineDiffs[x] & (DIFF52 >> 1)) newpattern |= DIFF58;
if (lastLineDiffs[x] & (DIFF26 >> 1)) newpattern |= DIFF59;
if (lastLineDiffs[x] & (DIFF53 >> 1)) newpattern |= DIFF86;
pattern = newpattern;
if (ExpandedDiff(pixels[5-1], pixels[2-1])) pattern |= DIFF52;
if (ExpandedDiff(pixels[5-1], pixels[3-1])) pattern |= DIFF53;
if (ExpandedDiff(pixels[5-1], pixels[6-1])) pattern |= DIFF56;
if (ExpandedDiff(pixels[2-1], pixels[6-1])) pattern |= DIFF26;
lastLineDiffs[x] = pattern >> 1;
newpattern = tree_hq[pattern & 0x7FF];
pattern = RotatePattern(pattern);
out[ 0] =
RGBPack(((pixels[5-1] * blends_4x[(newpattern * 16) + 0 + 0x0]) +
(pixels[2-1] * blends_4x[(newpattern * 16) + 1 + 0x0]) +
(pixels[4-1] * blends_4x[(newpattern * 16) + 2 + 0x0]) +
(pixels[1-1] * blends_4x[(newpattern * 16) + 3 + 0x0])) / 16);
out[ 1] =
RGBPack(((pixels[5-1] * blends_4x[(newpattern * 16) + 0 + 0x4]) +
(pixels[2-1] * blends_4x[(newpattern * 16) + 1 + 0x4]) +
(pixels[4-1] * blends_4x[(newpattern * 16) + 2 + 0x4]) +
(pixels[1-1] * blends_4x[(newpattern * 16) + 3 + 0x4])) / 16);
out[(__PAST_LIBRARY_WIDTH*0x4) ] =
RGBPack(((pixels[5-1] * blends_4x[(newpattern * 16) + 0 + 0x8]) +
(pixels[2-1] * blends_4x[(newpattern * 16) + 1 + 0x8]) +
(pixels[4-1] * blends_4x[(newpattern * 16) + 2 + 0x8]) +
(pixels[1-1] * blends_4x[(newpattern * 16) + 3 + 0x8])) / 16);
out[(__PAST_LIBRARY_WIDTH*0x4)+1] =
RGBPack(((pixels[5-1] * blends_4x[(newpattern * 16) + 0 + 0xC]) +
(pixels[2-1] * blends_4x[(newpattern * 16) + 1 + 0xC]) +
(pixels[4-1] * blends_4x[(newpattern * 16) + 2 + 0xC]) +
(pixels[1-1] * blends_4x[(newpattern * 16) + 3 + 0xC])) / 16);
newpattern = tree_hq[pattern & 0x7FF];
pattern = RotatePattern(pattern);
out[ 3] =
RGBPack(((pixels[5-1] * blends_4x[(newpattern * 16) + 0 + 0x0]) +
(pixels[6-1] * blends_4x[(newpattern * 16) + 1 + 0x0]) +
(pixels[2-1] * blends_4x[(newpattern * 16) + 2 + 0x0]) +
(pixels[3-1] * blends_4x[(newpattern * 16) + 3 + 0x0])) / 16);
out[(__PAST_LIBRARY_WIDTH*0x4)+3] =
RGBPack(((pixels[5-1] * blends_4x[(newpattern * 16) + 0 + 0x4]) +
(pixels[6-1] * blends_4x[(newpattern * 16) + 1 + 0x4]) +
(pixels[2-1] * blends_4x[(newpattern * 16) + 2 + 0x4]) +
(pixels[3-1] * blends_4x[(newpattern * 16) + 3 + 0x4])) / 16);
out[ 2] =
RGBPack(((pixels[5-1] * blends_4x[(newpattern * 16) + 0 + 0x8]) +
(pixels[6-1] * blends_4x[(newpattern * 16) + 1 + 0x8]) +
(pixels[2-1] * blends_4x[(newpattern * 16) + 2 + 0x8]) +
(pixels[3-1] * blends_4x[(newpattern * 16) + 3 + 0x8])) / 16);
out[(__PAST_LIBRARY_WIDTH*0x4)+2] =
RGBPack(((pixels[5-1] * blends_4x[(newpattern * 16) + 0 + 0xC]) +
(pixels[6-1] * blends_4x[(newpattern * 16) + 1 + 0xC]) +
(pixels[2-1] * blends_4x[(newpattern * 16) + 2 + 0xC]) +
(pixels[3-1] * blends_4x[(newpattern * 16) + 3 + 0xC])) / 16);
newpattern = tree_hq[pattern & 0x7FF];
pattern = RotatePattern(pattern);
out[(__PAST_LIBRARY_WIDTH*0xC)+3] =
RGBPack(((pixels[5-1] * blends_4x[(newpattern * 16) + 0 + 0x0]) +
(pixels[8-1] * blends_4x[(newpattern * 16) + 1 + 0x0]) +
(pixels[6-1] * blends_4x[(newpattern * 16) + 2 + 0x0]) +
(pixels[9-1] * blends_4x[(newpattern * 16) + 3 + 0x0])) / 16);
out[(__PAST_LIBRARY_WIDTH*0xC)+2] =
RGBPack(((pixels[5-1] * blends_4x[(newpattern * 16) + 0 + 0x4]) +
(pixels[8-1] * blends_4x[(newpattern * 16) + 1 + 0x4]) +
(pixels[6-1] * blends_4x[(newpattern * 16) + 2 + 0x4]) +
(pixels[9-1] * blends_4x[(newpattern * 16) + 3 + 0x4])) / 16);
out[(__PAST_LIBRARY_WIDTH*0x8)+3] =
RGBPack(((pixels[5-1] * blends_4x[(newpattern * 16) + 0 + 0x8]) +
(pixels[8-1] * blends_4x[(newpattern * 16) + 1 + 0x8]) +
(pixels[6-1] * blends_4x[(newpattern * 16) + 2 + 0x8]) +
(pixels[9-1] * blends_4x[(newpattern * 16) + 3 + 0x8])) / 16);
out[(__PAST_LIBRARY_WIDTH*0x8)+2] =
RGBPack(((pixels[5-1] * blends_4x[(newpattern * 16) + 0 + 0xC]) +
(pixels[8-1] * blends_4x[(newpattern * 16) + 1 + 0xC]) +
(pixels[6-1] * blends_4x[(newpattern * 16) + 2 + 0xC]) +
(pixels[9-1] * blends_4x[(newpattern * 16) + 3 + 0xC])) / 16);
newpattern = tree_hq[pattern & 0x7FF];
pattern = RotatePattern(pattern);
out[(__PAST_LIBRARY_WIDTH*0xC) ] =
RGBPack(((pixels[5-1] * blends_4x[(newpattern * 16) + 0 + 0x0]) +
(pixels[4-1] * blends_4x[(newpattern * 16) + 1 + 0x0]) +
(pixels[8-1] * blends_4x[(newpattern * 16) + 2 + 0x0]) +
(pixels[7-1] * blends_4x[(newpattern * 16) + 3 + 0x0])) / 16);
out[(__PAST_LIBRARY_WIDTH*0x8) ] =
RGBPack(((pixels[5-1] * blends_4x[(newpattern * 16) + 0 + 0x4]) +
(pixels[4-1] * blends_4x[(newpattern * 16) + 1 + 0x4]) +
(pixels[8-1] * blends_4x[(newpattern * 16) + 2 + 0x4]) +
(pixels[7-1] * blends_4x[(newpattern * 16) + 3 + 0x4])) / 16);
out[(__PAST_LIBRARY_WIDTH*0xC)+1] =
RGBPack(((pixels[5-1] * blends_4x[(newpattern * 16) + 0 + 0x8]) +
(pixels[4-1] * blends_4x[(newpattern * 16) + 1 + 0x8]) +
(pixels[8-1] * blends_4x[(newpattern * 16) + 2 + 0x8]) +
(pixels[7-1] * blends_4x[(newpattern * 16) + 3 + 0x8])) / 16);
out[(__PAST_LIBRARY_WIDTH*0x8)+1] =
RGBPack(((pixels[5-1] * blends_4x[(newpattern * 16) + 0 + 0xC]) +
(pixels[4-1] * blends_4x[(newpattern * 16) + 1 + 0xC]) +
(pixels[8-1] * blends_4x[(newpattern * 16) + 2 + 0xC]) +
(pixels[7-1] * blends_4x[(newpattern * 16) + 3 + 0xC])) / 16);
out += 4;
in++;
x--;
if (x == 0) {
pixels[1-1] = pixels[2-1];
pixels[2-1] = pixels[3-1];
pixels[4-1] = pixels[5-1];
pixels[5-1] = pixels[6-1];
pixels[7-1] = pixels[8-1];
pixels[8-1] = pixels[9-1];
continue;
}
pixels[1-1] = pixels[2-1];
pixels[2-1] = pixels[3-1];
pixels[3-1] = RGBUnpack(in[prevline]); /* Pixel 3 */
pixels[4-1] = pixels[5-1];
pixels[5-1] = pixels[6-1];
pixels[6-1] = RGBUnpack(in[1 ]); /* Pixel 6 */
pixels[7-1] = pixels[8-1];
pixels[8-1] = pixels[9-1];
pixels[9-1] = RGBUnpack(in[nextline]); /* Pixel 9 */
} while (x >= 0);
prevline = 1 - __PAST_LIBRARY_WIDTH;
out += (__PAST_LIBRARY_WIDTH * 0xC);
y--;
if (y > 0) {
continue;
}
nextline = 0;
} while (y >= 0);
}
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