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coreboot-kgpe-d16/src/lib/jpeg.c
Stefan Reinauer 14e2277962 Since some people disapprove of white space cleanups mixed in regular commits 
while others dislike them being extra commits, let's clean them up once and
for all for the existing code. If it's ugly, let it only be ugly once :-)

Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>



git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5507 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2010-04-27 06:56:47 +00:00

986 lines
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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2001 Michael Schroeder
*
* 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; version 2 of the License.
*
* 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 St, Fifth Floor, Boston, MA 02110-1301 USA
*/
/*
* a tiny jpeg decoder.
*
* written in August 2001 by Michael Schroeder <mls@suse.de>
*
*/
#define __LITTLE_ENDIAN
#include <string.h>
#include "jpeg.h"
#define ISHIFT 11
#define IFIX(a) ((int)((a) * (1 << ISHIFT) + .5))
#define IMULT(a, b) (((a) * (b)) >> ISHIFT)
#define ITOINT(a) ((a) >> ISHIFT)
#ifndef __P
# define __P(x) x
#endif
/* special markers */
#define M_BADHUFF -1
#define M_EOF 0x80
struct in {
unsigned char *p;
unsigned int bits;
int left;
int marker;
int (*func) __P((void *));
void *data;
};
/*********************************/
struct dec_hufftbl;
struct enc_hufftbl;
union hufftblp {
struct dec_hufftbl *dhuff;
struct enc_hufftbl *ehuff;
};
struct scan {
int dc; /* old dc value */
union hufftblp hudc;
union hufftblp huac;
int next; /* when to switch to next scan */
int cid; /* component id */
int hv; /* horiz/vert, copied from comp */
int tq; /* quant tbl, copied from comp */
};
/*********************************/
#define DECBITS 10 /* seems to be the optimum */
struct dec_hufftbl {
int maxcode[17];
int valptr[16];
unsigned char vals[256];
unsigned int llvals[1 << DECBITS];
};
static void decode_mcus __P((struct in *, int *, int, struct scan *, int *));
static int dec_readmarker __P((struct in *));
static void dec_makehuff __P((struct dec_hufftbl *, int *, unsigned char *));
static void setinput __P((struct in *, unsigned char *));
/*********************************/
#undef PREC
#define PREC int
static void idctqtab __P((unsigned char *, PREC *));
static void idct __P((int *, int *, PREC *, PREC, int));
static void scaleidctqtab __P((PREC *, PREC));
/*********************************/
static void initcol __P((PREC[][64]));
static void col221111 __P((int *, unsigned char *, int));
static void col221111_16 __P((int *, unsigned char *, int));
static void col221111_32 __P((int *, unsigned char *, int));
/*********************************/
#define M_SOI 0xd8
#define M_APP0 0xe0
#define M_DQT 0xdb
#define M_SOF0 0xc0
#define M_DHT 0xc4
#define M_DRI 0xdd
#define M_SOS 0xda
#define M_RST0 0xd0
#define M_EOI 0xd9
#define M_COM 0xfe
static unsigned char *datap;
static int getbyte(void)
{
return *datap++;
}
static int getword(void)
{
int c1, c2;
c1 = *datap++;
c2 = *datap++;
return c1 << 8 | c2;
}
struct comp {
int cid;
int hv;
int tq;
};
#define MAXCOMP 4
struct jpginfo {
int nc; /* number of components */
int ns; /* number of scans */
int dri; /* restart interval */
int nm; /* mcus til next marker */
int rm; /* next restart marker */
};
static struct jpginfo info;
static struct comp comps[MAXCOMP];
static struct scan dscans[MAXCOMP];
static unsigned char quant[4][64];
static struct dec_hufftbl dhuff[4];
#define dec_huffdc (dhuff + 0)
#define dec_huffac (dhuff + 2)
static struct in glob_in;
static int readtables(int till)
{
int m, l, i, j, lq, pq, tq;
int tc, th, tt;
for (;;) {
if (getbyte() != 0xff)
return -1;
if ((m = getbyte()) == till)
break;
switch (m) {
case 0xc2:
return 0;
case M_DQT:
lq = getword();
while (lq > 2) {
pq = getbyte();
tq = pq & 15;
if (tq > 3)
return -1;
pq >>= 4;
if (pq != 0)
return -1;
for (i = 0; i < 64; i++)
quant[tq][i] = getbyte();
lq -= 64 + 1;
}
break;
case M_DHT:
l = getword();
while (l > 2) {
int hufflen[16], k;
unsigned char huffvals[256];
tc = getbyte();
th = tc & 15;
tc >>= 4;
tt = tc * 2 + th;
if (tc > 1 || th > 1)
return -1;
for (i = 0; i < 16; i++)
hufflen[i] = getbyte();
l -= 1 + 16;
k = 0;
for (i = 0; i < 16; i++) {
for (j = 0; j < hufflen[i]; j++)
huffvals[k++] = getbyte();
l -= hufflen[i];
}
dec_makehuff(dhuff + tt, hufflen,
huffvals);
}
break;
case M_DRI:
l = getword();
info.dri = getword();
break;
default:
l = getword();
while (l-- > 2)
getbyte();
break;
}
}
return 0;
}
static void dec_initscans(void)
{
int i;
info.nm = info.dri + 1;
info.rm = M_RST0;
for (i = 0; i < info.ns; i++)
dscans[i].dc = 0;
}
static int dec_checkmarker(void)
{
int i;
if (dec_readmarker(&glob_in) != info.rm)
return -1;
info.nm = info.dri;
info.rm = (info.rm + 1) & ~0x08;
for (i = 0; i < info.ns; i++)
dscans[i].dc = 0;
return 0;
}
int jpeg_check_size(unsigned char *buf, int width, int height)
{
datap = buf;
getbyte();
getbyte();
readtables(M_SOF0);
getword();
getbyte();
if (height != getword() || width != getword())
return 0;
return 1;
}
int jpeg_decode(unsigned char *buf, unsigned char *pic,
int width, int height, int depth, struct jpeg_decdata *decdata)
{
int i, j, m, tac, tdc;
int mcusx, mcusy, mx, my;
int max[6];
if (!decdata || !buf || !pic)
return -1;
datap = buf;
if (getbyte() != 0xff)
return ERR_NO_SOI;
if (getbyte() != M_SOI)
return ERR_NO_SOI;
if (readtables(M_SOF0))
return ERR_BAD_TABLES;
getword();
i = getbyte();
if (i != 8)
return ERR_NOT_8BIT;
if (((getword() + 15) & ~15) != height)
return ERR_HEIGHT_MISMATCH;
if (((getword() + 15) & ~15) != width)
return ERR_WIDTH_MISMATCH;
if ((height & 15) || (width & 15))
return ERR_BAD_WIDTH_OR_HEIGHT;
info.nc = getbyte();
if (info.nc > MAXCOMP)
return ERR_TOO_MANY_COMPPS;
for (i = 0; i < info.nc; i++) {
int h, v;
comps[i].cid = getbyte();
comps[i].hv = getbyte();
v = comps[i].hv & 15;
h = comps[i].hv >> 4;
comps[i].tq = getbyte();
if (h > 3 || v > 3)
return ERR_ILLEGAL_HV;
if (comps[i].tq > 3)
return ERR_QUANT_TABLE_SELECTOR;
}
if (readtables(M_SOS))
return ERR_BAD_TABLES;
getword();
info.ns = getbyte();
if (info.ns != 3)
return ERR_NOT_YCBCR_221111;
for (i = 0; i < 3; i++) {
dscans[i].cid = getbyte();
tdc = getbyte();
tac = tdc & 15;
tdc >>= 4;
if (tdc > 1 || tac > 1)
return ERR_QUANT_TABLE_SELECTOR;
for (j = 0; j < info.nc; j++)
if (comps[j].cid == dscans[i].cid)
break;
if (j == info.nc)
return ERR_UNKNOWN_CID_IN_SCAN;
dscans[i].hv = comps[j].hv;
dscans[i].tq = comps[j].tq;
dscans[i].hudc.dhuff = dec_huffdc + tdc;
dscans[i].huac.dhuff = dec_huffac + tac;
}
i = getbyte();
j = getbyte();
m = getbyte();
if (i != 0 || j != 63 || m != 0)
return ERR_NOT_SEQUENTIAL_DCT;
if (dscans[0].cid != 1 || dscans[1].cid != 2 || dscans[2].cid != 3)
return ERR_NOT_YCBCR_221111;
if (dscans[0].hv != 0x22 || dscans[1].hv != 0x11 || dscans[2].hv != 0x11)
return ERR_NOT_YCBCR_221111;
mcusx = width >> 4;
mcusy = height >> 4;
idctqtab(quant[dscans[0].tq], decdata->dquant[0]);
idctqtab(quant[dscans[1].tq], decdata->dquant[1]);
idctqtab(quant[dscans[2].tq], decdata->dquant[2]);
initcol(decdata->dquant);
setinput(&glob_in, datap);
#if 0
/* landing zone */
img[len] = 0;
img[len + 1] = 0xff;
img[len + 2] = M_EOF;
#endif
dec_initscans();
dscans[0].next = 6 - 4;
dscans[1].next = 6 - 4 - 1;
dscans[2].next = 6 - 4 - 1 - 1; /* 411 encoding */
for (my = 0; my < mcusy; my++) {
for (mx = 0; mx < mcusx; mx++) {
if (info.dri && !--info.nm)
if (dec_checkmarker())
return ERR_WRONG_MARKER;
decode_mcus(&glob_in, decdata->dcts, 6, dscans, max);
idct(decdata->dcts, decdata->out, decdata->dquant[0], IFIX(128.5), max[0]);
idct(decdata->dcts + 64, decdata->out + 64, decdata->dquant[0], IFIX(128.5), max[1]);
idct(decdata->dcts + 128, decdata->out + 128, decdata->dquant[0], IFIX(128.5), max[2]);
idct(decdata->dcts + 192, decdata->out + 192, decdata->dquant[0], IFIX(128.5), max[3]);
idct(decdata->dcts + 256, decdata->out + 256, decdata->dquant[1], IFIX(0.5), max[4]);
idct(decdata->dcts + 320, decdata->out + 320, decdata->dquant[2], IFIX(0.5), max[5]);
switch (depth) {
case 32:
col221111_32(decdata->out, pic + (my * 16 * mcusx + mx) * 16 * 4, mcusx * 16 * 4);
break;
case 24:
col221111(decdata->out, pic + (my * 16 * mcusx + mx) * 16 * 3, mcusx * 16 * 3);
break;
case 16:
col221111_16(decdata->out, pic + (my * 16 * mcusx + mx) * (16 * 2), mcusx * (16 * 2));
break;
default:
return ERR_DEPTH_MISMATCH;
break;
}
}
}
m = dec_readmarker(&glob_in);
if (m != M_EOI)
return ERR_NO_EOI;
return 0;
}
/****************************************************************/
/************** huffman decoder ***************/
/****************************************************************/
static int fillbits __P((struct in *, int, unsigned int));
static int dec_rec2
__P((struct in *, struct dec_hufftbl *, int *, int, int));
static void setinput(struct in *in, unsigned char *p)
{
in->p = p;
in->left = 0;
in->bits = 0;
in->marker = 0;
}
static int fillbits(struct in *in, int le, unsigned int bi)
{
int b, m;
if (in->marker) {
if (le <= 16)
in->bits = bi << 16, le += 16;
return le;
}
while (le <= 24) {
b = *in->p++;
if (b == 0xff && (m = *in->p++) != 0) {
if (m == M_EOF) {
if (in->func && (m = in->func(in->data)) == 0)
continue;
}
in->marker = m;
if (le <= 16)
bi = bi << 16, le += 16;
break;
}
bi = bi << 8 | b;
le += 8;
}
in->bits = bi; /* tmp... 2 return values needed */
return le;
}
static int dec_readmarker(struct in *in)
{
int m;
in->left = fillbits(in, in->left, in->bits);
if ((m = in->marker) == 0)
return 0;
in->left = 0;
in->marker = 0;
return m;
}
#define LEBI_DCL int le, bi
#define LEBI_GET(in) (le = in->left, bi = in->bits)
#define LEBI_PUT(in) (in->left = le, in->bits = bi)
#define GETBITS(in, n) ( \
(le < (n) ? le = fillbits(in, le, bi), bi = in->bits : 0), \
(le -= (n)), \
bi >> le & ((1 << (n)) - 1) \
)
#define UNGETBITS(in, n) ( \
le += (n) \
)
static int dec_rec2(struct in *in, struct dec_hufftbl *hu, int *runp, int c,
int i)
{
LEBI_DCL;
LEBI_GET(in);
if (i) {
UNGETBITS(in, i & 127);
*runp = i >> 8 & 15;
i >>= 16;
} else {
for (i = DECBITS; (c = ((c << 1) | GETBITS(in, 1))) >= (hu->maxcode[i]); i++);
if (i >= 16) {
in->marker = M_BADHUFF;
return 0;
}
i = hu->vals[hu->valptr[i] + c - hu->maxcode[i - 1] * 2];
*runp = i >> 4;
i &= 15;
}
if (i == 0) { /* sigh, 0xf0 is 11 bit */
LEBI_PUT(in);
return 0;
}
/* receive part */
c = GETBITS(in, i);
if (c < (1 << (i - 1)))
c += (-1 << i) + 1;
LEBI_PUT(in);
return c;
}
#define DEC_REC(in, hu, r, i) ( \
r = GETBITS(in, DECBITS), \
i = hu->llvals[r], \
i & 128 ? \
( \
UNGETBITS(in, i & 127), \
r = i >> 8 & 15, \
i >> 16 \
) \
: \
( \
LEBI_PUT(in), \
i = dec_rec2(in, hu, &r, r, i), \
LEBI_GET(in), \
i \
) \
)
static void decode_mcus(struct in *in, int *dct, int n, struct scan *sc, int *maxp)
{
struct dec_hufftbl *hu;
int i, r, t;
LEBI_DCL;
memset(dct, 0, n * 64 * sizeof(*dct));
LEBI_GET(in);
while (n-- > 0) {
hu = sc->hudc.dhuff;
*dct++ = (sc->dc += DEC_REC(in, hu, r, t));
hu = sc->huac.dhuff;
i = 63;
while (i > 0) {
t = DEC_REC(in, hu, r, t);
if (t == 0 && r == 0) {
dct += i;
break;
}
dct += r;
*dct++ = t;
i -= r + 1;
}
*maxp++ = 64 - i;
if (n == sc->next)
sc++;
}
LEBI_PUT(in);
}
static void dec_makehuff(struct dec_hufftbl *hu, int *hufflen, unsigned char *huffvals)
{
int code, k, i, j, d, x, c, v;
for (i = 0; i < (1 << DECBITS); i++)
hu->llvals[i] = 0;
/*
* llvals layout:
*
* value v already known, run r, backup u bits:
* vvvvvvvvvvvvvvvv 0000 rrrr 1 uuuuuuu
* value unknown, size b bits, run r, backup u bits:
* 000000000000bbbb 0000 rrrr 0 uuuuuuu
* value and size unknown:
* 0000000000000000 0000 0000 0 0000000
*/
code = 0;
k = 0;
for (i = 0; i < 16; i++, code <<= 1) { /* sizes */
hu->valptr[i] = k;
for (j = 0; j < hufflen[i]; j++) {
hu->vals[k] = *huffvals++;
if (i < DECBITS) {
c = code << (DECBITS - 1 - i);
v = hu->vals[k] & 0x0f; /* size */
for (d = 1 << (DECBITS - 1 - i); --d >= 0;) {
if (v + i < DECBITS) { /* both fit in table */
x = d >> (DECBITS - 1 - v -
i);
if (v && x < (1 << (v - 1)))
x += (-1 << v) + 1;
x = x << 16 | (hu-> vals[k] & 0xf0) << 4 |
(DECBITS - (i + 1 + v)) | 128;
} else
x = v << 16 | (hu-> vals[k] & 0xf0) << 4 |
(DECBITS - (i + 1));
hu->llvals[c | d] = x;
}
}
code++;
k++;
}
hu->maxcode[i] = code;
}
hu->maxcode[16] = 0x20000; /* always terminate decode */
}
/****************************************************************/
/************** idct ***************/
/****************************************************************/
#define ONE ((PREC)IFIX(1.))
#define S2 ((PREC)IFIX(0.382683432))
#define C2 ((PREC)IFIX(0.923879532))
#define C4 ((PREC)IFIX(0.707106781))
#define S22 ((PREC)IFIX(2 * 0.382683432))
#define C22 ((PREC)IFIX(2 * 0.923879532))
#define IC4 ((PREC)IFIX(1 / 0.707106781))
#define C3IC1 ((PREC)IFIX(0.847759065)) /* c3/c1 */
#define C5IC1 ((PREC)IFIX(0.566454497)) /* c5/c1 */
#define C7IC1 ((PREC)IFIX(0.198912367)) /* c7/c1 */
#define XPP(a,b) (t = a + b, b = a - b, a = t)
#define XMP(a,b) (t = a - b, b = a + b, a = t)
#define XPM(a,b) (t = a + b, b = b - a, a = t)
#define ROT(a,b,s,c) ( t = IMULT(a + b, s), \
a = IMULT(a, c - s) + t, \
b = IMULT(b, c + s) - t)
#define IDCT \
( \
XPP(t0, t1), \
XMP(t2, t3), \
t2 = IMULT(t2, IC4) - t3, \
XPP(t0, t3), \
XPP(t1, t2), \
XMP(t4, t7), \
XPP(t5, t6), \
XMP(t5, t7), \
t5 = IMULT(t5, IC4), \
ROT(t4, t6, S22, C22),\
t6 -= t7, \
t5 -= t6, \
t4 -= t5, \
XPP(t0, t7), \
XPP(t1, t6), \
XPP(t2, t5), \
XPP(t3, t4) \
)
static unsigned char zig2[64] = {
0, 2, 3, 9, 10, 20, 21, 35,
14, 16, 25, 31, 39, 46, 50, 57,
5, 7, 12, 18, 23, 33, 37, 48,
27, 29, 41, 44, 52, 55, 59, 62,
15, 26, 30, 40, 45, 51, 56, 58,
1, 4, 8, 11, 19, 22, 34, 36,
28, 42, 43, 53, 54, 60, 61, 63,
6, 13, 17, 24, 32, 38, 47, 49
};
void idct(int *in, int *out, PREC *lquant, PREC off, int max)
{
PREC t0, t1, t2, t3, t4, t5, t6, t7, t;
PREC tmp[64], *tmpp;
int i, j;
unsigned char *zig2p;
t0 = off;
if (max == 1) {
t0 += in[0] * lquant[0];
for (i = 0; i < 64; i++)
out[i] = ITOINT(t0);
return;
}
zig2p = zig2;
tmpp = tmp;
for (i = 0; i < 8; i++) {
j = *zig2p++;
t0 += in[j] * lquant[j];
j = *zig2p++;
t5 = in[j] * lquant[j];
j = *zig2p++;
t2 = in[j] * lquant[j];
j = *zig2p++;
t7 = in[j] * lquant[j];
j = *zig2p++;
t1 = in[j] * lquant[j];
j = *zig2p++;
t4 = in[j] * lquant[j];
j = *zig2p++;
t3 = in[j] * lquant[j];
j = *zig2p++;
t6 = in[j] * lquant[j];
IDCT;
tmpp[0 * 8] = t0;
tmpp[1 * 8] = t1;
tmpp[2 * 8] = t2;
tmpp[3 * 8] = t3;
tmpp[4 * 8] = t4;
tmpp[5 * 8] = t5;
tmpp[6 * 8] = t6;
tmpp[7 * 8] = t7;
tmpp++;
t0 = 0;
}
for (i = 0; i < 8; i++) {
t0 = tmp[8 * i + 0];
t1 = tmp[8 * i + 1];
t2 = tmp[8 * i + 2];
t3 = tmp[8 * i + 3];
t4 = tmp[8 * i + 4];
t5 = tmp[8 * i + 5];
t6 = tmp[8 * i + 6];
t7 = tmp[8 * i + 7];
IDCT;
out[8 * i + 0] = ITOINT(t0);
out[8 * i + 1] = ITOINT(t1);
out[8 * i + 2] = ITOINT(t2);
out[8 * i + 3] = ITOINT(t3);
out[8 * i + 4] = ITOINT(t4);
out[8 * i + 5] = ITOINT(t5);
out[8 * i + 6] = ITOINT(t6);
out[8 * i + 7] = ITOINT(t7);
}
}
static unsigned char zig[64] = {
0, 1, 5, 6, 14, 15, 27, 28,
2, 4, 7, 13, 16, 26, 29, 42,
3, 8, 12, 17, 25, 30, 41, 43,
9, 11, 18, 24, 31, 40, 44, 53,
10, 19, 23, 32, 39, 45, 52, 54,
20, 22, 33, 38, 46, 51, 55, 60,
21, 34, 37, 47, 50, 56, 59, 61,
35, 36, 48, 49, 57, 58, 62, 63
};
static PREC aaidct[8] = {
IFIX(0.3535533906), IFIX(0.4903926402),
IFIX(0.4619397663), IFIX(0.4157348062),
IFIX(0.3535533906), IFIX(0.2777851165),
IFIX(0.1913417162), IFIX(0.0975451610)
};
static void idctqtab(unsigned char *qin, PREC *qout)
{
int i, j;
for (i = 0; i < 8; i++)
for (j = 0; j < 8; j++)
qout[zig[i * 8 + j]] = qin[zig[i * 8 + j]] *
IMULT(aaidct[i], aaidct[j]);
}
static void scaleidctqtab(PREC *q, PREC sc)
{
int i;
for (i = 0; i < 64; i++)
q[i] = IMULT(q[i], sc);
}
/****************************************************************/
/************** color decoder ***************/
/****************************************************************/
#define ROUND
/*
* YCbCr Color transformation:
*
* y:0..255 Cb:-128..127 Cr:-128..127
*
* R = Y + 1.40200 * Cr
* G = Y - 0.34414 * Cb - 0.71414 * Cr
* B = Y + 1.77200 * Cb
*
* =>
* Cr *= 1.40200;
* Cb *= 1.77200;
* Cg = 0.19421 * Cb + .50937 * Cr;
* R = Y + Cr;
* G = Y - Cg;
* B = Y + Cb;
*
* =>
* Cg = (50 * Cb + 130 * Cr + 128) >> 8;
*/
static void initcol(PREC q[][64])
{
scaleidctqtab(q[1], IFIX(1.77200));
scaleidctqtab(q[2], IFIX(1.40200));
}
/* This is optimized for the stupid sun SUNWspro compiler. */
#define STORECLAMP(a,x) \
( \
(a) = (x), \
(unsigned int)(x) >= 256 ? \
((a) = (x) < 0 ? 0 : 255) \
: \
0 \
)
#define CLAMP(x) ((unsigned int)(x) >= 256 ? ((x) < 0 ? 0 : 255) : (x))
#ifdef ROUND
#define CBCRCG(yin, xin) \
( \
cb = outc[0 +yin*8+xin], \
cr = outc[64+yin*8+xin], \
cg = (50 * cb + 130 * cr + 128) >> 8 \
)
#else
#define CBCRCG(yin, xin) \
( \
cb = outc[0 +yin*8+xin], \
cr = outc[64+yin*8+xin], \
cg = (3 * cb + 8 * cr) >> 4 \
)
#endif
#define PIC(yin, xin, p, xout) \
( \
y = outy[(yin) * 8 + xin], \
STORECLAMP(p[(xout) * 3 + 0], y + cr), \
STORECLAMP(p[(xout) * 3 + 1], y - cg), \
STORECLAMP(p[(xout) * 3 + 2], y + cb) \
)
#ifdef __LITTLE_ENDIAN
#define PIC_16(yin, xin, p, xout, add) \
( \
y = outy[(yin) * 8 + xin], \
y = ((CLAMP(y + cr + add*2+1) & 0xf8) << 8) | \
((CLAMP(y - cg + add ) & 0xfc) << 3) | \
((CLAMP(y + cb + add*2+1) ) >> 3), \
p[(xout) * 2 + 0] = y & 0xff, \
p[(xout) * 2 + 1] = y >> 8 \
)
#else
#ifdef CONFIG_PPC
#define PIC_16(yin, xin, p, xout, add) \
( \
y = outy[(yin) * 8 + xin], \
y = ((CLAMP(y + cr + add*2+1) & 0xf8) << 7) | \
((CLAMP(y - cg + add*2+1) & 0xf8) << 2) | \
((CLAMP(y + cb + add*2+1) ) >> 3), \
p[(xout) * 2 + 0] = y >> 8, \
p[(xout) * 2 + 1] = y & 0xff \
)
#else
#define PIC_16(yin, xin, p, xout, add) \
( \
y = outy[(yin) * 8 + xin], \
y = ((CLAMP(y + cr + add*2+1) & 0xf8) << 8) | \
((CLAMP(y - cg + add ) & 0xfc) << 3) | \
((CLAMP(y + cb + add*2+1) ) >> 3), \
p[(xout) * 2 + 0] = y >> 8, \
p[(xout) * 2 + 1] = y & 0xff \
)
#endif
#endif
#define PIC_32(yin, xin, p, xout) \
( \
y = outy[(yin) * 8 + xin], \
STORECLAMP(p[(xout) * 4 + 0], y + cr), \
STORECLAMP(p[(xout) * 4 + 1], y - cg), \
STORECLAMP(p[(xout) * 4 + 2], y + cb), \
p[(xout) * 4 + 3] = 0 \
)
#define PIC221111(xin) \
( \
CBCRCG(0, xin), \
PIC(xin / 4 * 8 + 0, (xin & 3) * 2 + 0, pic0, xin * 2 + 0), \
PIC(xin / 4 * 8 + 0, (xin & 3) * 2 + 1, pic0, xin * 2 + 1), \
PIC(xin / 4 * 8 + 1, (xin & 3) * 2 + 0, pic1, xin * 2 + 0), \
PIC(xin / 4 * 8 + 1, (xin & 3) * 2 + 1, pic1, xin * 2 + 1) \
)
#define PIC221111_16(xin) \
( \
CBCRCG(0, xin), \
PIC_16(xin / 4 * 8 + 0, (xin & 3) * 2 + 0, pic0, xin * 2 + 0, 3), \
PIC_16(xin / 4 * 8 + 0, (xin & 3) * 2 + 1, pic0, xin * 2 + 1, 0), \
PIC_16(xin / 4 * 8 + 1, (xin & 3) * 2 + 0, pic1, xin * 2 + 0, 1), \
PIC_16(xin / 4 * 8 + 1, (xin & 3) * 2 + 1, pic1, xin * 2 + 1, 2) \
)
#define PIC221111_32(xin) \
( \
CBCRCG(0, xin), \
PIC_32(xin / 4 * 8 + 0, (xin & 3) * 2 + 0, pic0, xin * 2 + 0),\
PIC_32(xin / 4 * 8 + 0, (xin & 3) * 2 + 1, pic0, xin * 2 + 1),\
PIC_32(xin / 4 * 8 + 1, (xin & 3) * 2 + 0, pic1, xin * 2 + 0),\
PIC_32(xin / 4 * 8 + 1, (xin & 3) * 2 + 1, pic1, xin * 2 + 1) \
)
static void col221111(int *out, unsigned char *pic, int width)
{
int i, j, k;
unsigned char *pic0, *pic1;
int *outy, *outc;
int cr, cg, cb, y;
pic0 = pic;
pic1 = pic + width;
outy = out;
outc = out + 64 * 4;
for (i = 2; i > 0; i--) {
for (j = 4; j > 0; j--) {
for (k = 0; k < 8; k++) {
PIC221111(k);
}
outc += 8;
outy += 16;
pic0 += 2 * width;
pic1 += 2 * width;
}
outy += 64 * 2 - 16 * 4;
}
}
static void col221111_16(int *out, unsigned char *pic, int width)
{
int i, j, k;
unsigned char *pic0, *pic1;
int *outy, *outc;
int cr, cg, cb, y;
pic0 = pic;
pic1 = pic + width;
outy = out;
outc = out + 64 * 4;
for (i = 2; i > 0; i--) {
for (j = 4; j > 0; j--) {
for (k = 0; k < 8; k++) {
PIC221111_16(k);
}
outc += 8;
outy += 16;
pic0 += 2 * width;
pic1 += 2 * width;
}
outy += 64 * 2 - 16 * 4;
}
}
static void col221111_32(int *out, unsigned char *pic, int width)
{
int i, j, k;
unsigned char *pic0, *pic1;
int *outy, *outc;
int cr, cg, cb, y;
pic0 = pic;
pic1 = pic + width;
outy = out;
outc = out + 64 * 4;
for (i = 2; i > 0; i--) {
for (j = 4; j > 0; j--) {
for (k = 0; k < 8; k++) {
PIC221111_32(k);
}
outc += 8;
outy += 16;
pic0 += 2 * width;
pic1 += 2 * width;
}
outy += 64 * 2 - 16 * 4;
}
}
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