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More SMUSH patches by aquadran: Implement code 4.

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svn-id: r4195
This commit is contained in:
James Brown 2002-05-04 06:31:24 +00:00
parent ad8fdf5f6a
commit 6979311c0a
1 changed files with 105 additions and 1 deletions
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106
insane.cpp
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@ -219,6 +219,88 @@ void codec37_bompdepack(byte *dst, byte *src, int len)
} while (len -= num);
}
void codec37_proc4(byte *dst, byte *src, int next_offs, int bw, int bh,
int pitch, int16 * table)
{
byte code, *tmp;
int i;
uint32 t;
if (pitch != 320) {
warning("invalid pitch");
return;
}
do {
i = bw;
do {
code = *src++;
if (code == 0xFD) {
t = src[0];
t += (t << 8) + (t << 16) + (t << 24);
*(uint32 *)(dst + 0) = t;
*(uint32 *)(dst + 320) = t;
*(uint32 *)(dst + 320 * 2) = t;
*(uint32 *)(dst + 320 * 3) = t;
src += 1;
dst += 4;
} else if (code == 0xFE) {
t = src[0];
t += (t << 8) + (t << 16) + (t << 24);
*(uint32 *)(dst + 0) = t;
t = src[1];
t += (t << 8) + (t << 16) + (t << 24);
*(uint32 *)(dst + 320) = t;
t = src[2];
t += (t << 8) + (t << 16) + (t << 24);
*(uint32 *)(dst + 320 * 2) = t;
t = src[3];
t += (t << 8) + (t << 16) + (t << 24);
*(uint32 *)(dst + 320 * 3) = t;
src += 4;
dst += 4;
} else if (code == 0xFF) {
*(uint32 *)(dst + 0) = ((uint32 *)src)[0];
*(uint32 *)(dst + 320) = ((uint32 *)src)[1];
*(uint32 *)(dst + 320 * 2) = ((uint32 *)src)[2];
*(uint32 *)(dst + 320 * 3) = ((uint32 *)src)[3];
src += 16;
dst += 4;
} else if (code == 0x00) {
uint16 count = src[0] + 1;
src += 1;
for (uint16 l = 0; l < count; l++) {
tmp = dst + next_offs;
*(uint32 *)(dst + 0) = *(uint32 *)(tmp);
*(uint32 *)(dst + 320) = *(uint32 *)(tmp + 320);
*(uint32 *)(dst + 320 * 2) = *(uint32 *)(tmp + 320 * 2);
*(uint32 *)(dst + 320 * 3) = *(uint32 *)(tmp + 320 * 3);
dst += 4;
i--;
if (i == 0) {
i = bw;
dst += 320 * 4 - 320;
bh--;
}
}
i++;
} else {
tmp = dst + table[code] + next_offs;
*(uint32 *)(dst + 0) = *(uint32 *)(tmp);
*(uint32 *)(dst + 320) = *(uint32 *)(tmp + 320);
*(uint32 *)(dst + 320 * 2) = *(uint32 *)(tmp + 320 * 2);
*(uint32 *)(dst + 320 * 3) = *(uint32 *)(tmp + 320 * 3);
dst += 4;
}
if (i <= 0) break;
if (bh <= 0) break;
} while (--i);
dst += 320 * 4 - 320;
if (bh <= 0) break;
} while (--bh);
}
void codec37_proc5(byte *dst, byte *src, int next_offs, int bw, int bh,
int pitch, int16 * table)
{
@ -463,10 +545,32 @@ int codec37(CodecData * cd, PersistentCodecData37 * pcd)
pcd->deltaBufs[pcd->curtable], width_in_blocks,
height_in_blocks, src_pitch, pcd->table1);
break;
}
case 4:{
uint16 number = *(uint16 *)(cd->src + 2);
if (number && pcd->flags + 1 != number)
break;
if (number & 1 && cd->src[12] & 1 && cd->flags & 0x10) {
_frameChanged = 0;
result = true;
break;
}
if ((number & 1) || !(cd->src[12] & 1)) {
pcd->curtable ^= 1;
}
codec37_proc4(pcd->deltaBufs[pcd->curtable], cd->src + 16,
pcd->deltaBufs[pcd->curtable ^ 1] -
pcd->deltaBufs[pcd->curtable], width_in_blocks,
height_in_blocks, src_pitch, pcd->table1);
break;
}
case 1:
case 4:
warning("code %d", cd->src[0]);
return (1);