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SCUMM HE: Bugfix T14 decoder

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This commit is contained in:
Eugene Sandulenko 2016-05-02 09:34:50 +02:00
parent 148a1a196c
commit 052f52747a
1 changed files with 17 additions and 14 deletions
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31
engines/scumm/he/moonbase/moonbase.cpp
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@ -49,51 +49,54 @@ void Moonbase::blitT14WizImage(uint8 *dst, int dstw, int dsth, int dstPitch, con
}
}
dst += clipBox->top * dstPitch + clipBox->left * 2;
int width = READ_LE_UINT16(wizd + 0x8 + 0);
int height = READ_LE_UINT16(wizd + 0x8 + 2);
int headerSize = READ_LE_UINT32(wizd + 0x4);
uint8 *dataPointer = &wizd[0x8 + headerSize];
warning("w: %d, h: %d, size: %d", width, height, headerSize);
uint8 *dataPointer = wizd + 0x8 + headerSize;
for (int i = 0; i < height; i++) {
uint16 lineSize = READ_LE_UINT16(dataPointer + 0);
uint8 *singlesOffset = dataPointer + READ_LE_UINT16(dataPointer + 2);
uint8 *quadsOffset = dataPointer + READ_LE_UINT16(dataPointer + 4);
uint8 *singlesOffset = READ_LE_UINT16(dataPointer + 2) + dataPointer;
uint8 *quadsOffset = READ_LE_UINT16(dataPointer + 4) + dataPointer;
int linecount = width;
int pixels = width;
byte *dst1 = dst;
byte *codes = dataPointer + 6;
while (1) {
int code = *dataPointer - 2;
int code = *codes - 2;
codes++;
if (code == 0) { // quad
for (int c = 0; c < 4; c++) {
WRITE_LE_UINT16(dst1, READ_LE_UINT16(quadsOffset));
singlesOffset += 2;
quadsOffset += 2;
dst1 += 2;
linecount--;
pixels--;
}
} else if (code < 0) { // single
WRITE_LE_UINT16(dst1, READ_LE_UINT16(singlesOffset));
singlesOffset += 2;
dst1 += 2;
linecount--;
pixels--;
} else { // skip
if ((code & 1) == 0) {
code >>= 1;
dst1 += code * 2;
linecount -= code;
pixels -= code;
} else { // special case
uint16 color = READ_LE_UINT16(dataPointer);
WRITE_LE_UINT16(dst, color);
uint16 color = READ_LE_UINT16(singlesOffset);
WRITE_LE_UINT16(dst1, color);
singlesOffset += 2;
dst1 += 2;
pixels--;
}
}
if (linecount <= 0)
if (pixels <= 0)
break;
}