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Diffstat (limited to 'java/awt/image/ComponentSampleModel.java')
| -rw-r--r-- | java/awt/image/ComponentSampleModel.java | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/java/awt/image/ComponentSampleModel.java b/java/awt/image/ComponentSampleModel.java index c7b08b919..f121296f1 100644 --- a/java/awt/image/ComponentSampleModel.java +++ b/java/awt/image/ComponentSampleModel.java @@ -41,6 +41,21 @@ import gnu.java.awt.Buffers; /* FIXME: This class does not yet support data type TYPE_SHORT */ /** + * ComponentSampleModel supports a flexible organization of pixel samples in + * memory, permitting pixel samples to be interleaved by band, by scanline, + * and by pixel. + * + * A DataBuffer for this sample model has K banks of data. Pixels have N + * samples, so there are N bands in the DataBuffer. Each band is completely + * contained in one bank of data, but a bank may contain more than one band. + * Each pixel sample is stored in a single data element. + * + * Within a bank, each band begins at an offset stored in bandOffsets. The + * banks containing the band is given by bankIndices. Within the bank, there + * are three dimensions - band, pixel, and scanline. The dimension ordering + * is controlled by bandOffset, pixelStride, and scanlineStride, which means + * that any combination of interleavings is supported. + * * @author Rolf W. Rasmussen <rolfwr@ii.uib.no> */ public class ComponentSampleModel extends SampleModel @@ -86,6 +101,7 @@ public class ComponentSampleModel extends SampleModel this.bandOffsets = bandOffsets; this.bankIndices = bankIndices; + this.numBanks = 0; for (int b=0; b<bankIndices.length; b++) this.numBanks = Math.max(this.numBanks, bankIndices[b]+1); |