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Clean-up of 1-bit subsampling.

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This commit is contained in:
Harald Kuhr 2009-09-30 22:51:02 +02:00
parent a8a48473ff
commit 8be8f286f3
1 changed files with 6 additions and 4 deletions
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8
twelvemonkeys-imageio/psd/src/main/java/com/twelvemonkeys/imageio/plugins/psd/PSDImageReader.java
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@ -548,18 +548,20 @@ public class PSDImageReader extends ImageReaderBase {
// Copy line sub sampled into real data // Copy line sub sampled into real data
int x = pSource.x; int x = pSource.x;
for (int i = 0; i < destWidth; i++) { for (int i = 0; i < destWidth; i++) {
// TODO: FIXME!
byte result = 0; byte result = 0;
for (int j = 0; j < 8; j++) { for (int j = 0; j < 8; j++) {
int pos = x / 8; int pos = x / 8;
if (pos >= row.length) { if (pos >= row.length) {
break; break; // Stay inside bounds...
} }
int sourceBitOff = x % 8; int sourceBitOff = x % 8;
int mask = 0x80 >> sourceBitOff; int mask = 0x80 >> sourceBitOff;
int destBitOff = 7 - j;
result |= (((row[pos] & mask) != 0) ? 1 : 0) << 7 - j; result |= (((row[pos] & mask) != 0) ? 1 : 0) << destBitOff;
x += pXSub; x += pXSub;
} }