L_JP2_JPXCOMPOSITE
typedef struct _tagL_JP2_JPXCOMPOSITE
{
L_UINT32 uStructSize;
pL_JP2_JPXBITMAPS pBitmaps;
L_UINT32 uNumOfBitmaps;
}L_JP2_JPXCOMPOSITE, *pL_JP2_JPXCOMPOSITE;
The L_JP2_JPXCOMPOSITE structure provides information for compositing layers contained in a JPEG 2000 file.
|
Member |
Description |
|
uStructSize |
Size of this structure, in bytes. Use the sizeof operator to calculate this value. |
|
pBitmaps |
Array of compositing layers information. |
|
uNumOfBitmaps |
Number of compositing layers. This field specifies the array size. |
Comments
A JPEG 2000 file may have multiple compositing layers, each with its own color, opacity, and pre-multiplied opacity channels. If any of a layer’s bitmaps is not allocated, the layer has no channel of this type.
The L_JP2_JPXCOMPOSITE structure is used in the following functions: