Elements' Summary |
ScanLines |
Number of scanlines for this bitmap.
This value must not be negative
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ScanLineBytes |
Number of data bytes per scanline.
This value must not be negative
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ScanLineStride |
Byte offset between the start of two consecutive scanlines.
This value is permitted to be negative, denoting a bitmap
whose content is flipped at the x axis.
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PlaneStride |
Byte offset between the start of two consecutive planes.
This value is permitted to be negative.
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ColorSpace |
Color space the bitmap colors shall be interpreted within. |
NumComponents |
Number of color components per pixel.
This value must not be negative
|
ComponentMasks |
Mask values for packed bitmaps
This member contains NumComponents 64 bit masks, which can be
used to mask out the corresponding color component from the
bitmap data. For the typical 32 bit RGBA color data, the four
mask values would look like 0xFF000000, 0x00FF0000,
0x0000FF00, and 0x000000FF.
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Palette |
This member determines whether the bitmap data are actually
indices into a color map. |
Endianness |
Endianness of the pixel values.
This value must be one of the Endianness constants
|
Format |
Format type of this bitmap. |
IsMsbFirst |
This member determines the bit order (only relevant if a pixel
uses less than 8 bits, of course). |
Elements' Details |
ScanLines
long ScanLines;
- Description
- Number of scanlines for this bitmap.
This value must not be negative
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ScanLineBytes
long ScanLineBytes;
- Description
- Number of data bytes per scanline.
This value must not be negative
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ScanLineStride
long ScanLineStride;
- Description
- Byte offset between the start of two consecutive scanlines.
This value is permitted to be negative, denoting a bitmap
whose content is flipped at the x axis.
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PlaneStride
long PlaneStride;
- Description
- Byte offset between the start of two consecutive planes.
This value is permitted to be negative.
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ColorSpace
XColorSpace ColorSpace;
- Description
- Color space the bitmap colors shall be interpreted within.
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NumComponents
long NumComponents;
- Description
- Number of color components per pixel.
This value must not be negative
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ComponentMasks
sequence< hyper > ComponentMasks;
- Description
- Mask values for packed bitmaps
This member contains NumComponents 64 bit masks, which can be
used to mask out the corresponding color component from the
bitmap data. For the typical 32 bit RGBA color data, the four
mask values would look like 0xFF000000, 0x00FF0000,
0x0000FF00, and 0x000000FF.
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Palette
XBitmapPalette Palette;
- Description
- This member determines whether the bitmap data are actually
indices into a color map.
When set to the nil reference, the bitmap data is assumed to
contain direct color values (to be interpreted according to
the associated color space).
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Endianness
byte Endianness;
- Description
- Endianness of the pixel values.
This value must be one of the Endianness constants
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Format
byte Format;
- Description
- Format type of this bitmap.
This value must be one of the IntegerBitmapFormat
constants. The precise layout of the color channels within a
bitmap pixel is further specified via the ComponentMasks member.
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IsMsbFirst
boolean IsMsbFirst;
- Description
- This member determines the bit order (only relevant if a pixel
uses less than 8 bits, of course).
When , this member denotes that the leftmost pixel from
an 8 bit amount of pixel data consists of the bits starting
with the most significant bit. When , it's starting
with the least significant bit.
Example: for a 1bpp bitmap, each pixel is represented by
exactly one bit. If this member is , the first pixel is
the MSB of the first byte, and the eighth pixel is the LSB of
the first byte. If this member is , it's just the
opposite.
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Copyright © 2003 Sun Microsystems, Inc.