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RotateBitmap
Sets the software rasteriser active drawing buffer.
Declaration
void * NAPI REF2D_driver::RotateBitmap(
void *src,
N_int32 bitsPerPixel,
N_int32 *stride,
N_int32 width,
N_int32 height)
Prototype In
snap/ref2d.h
Parameters
src |
Pointer to the source bitmap to rotate |
bitsPerPixel |
Pixel depth of the source bitmap in bits |
stride |
Stride of the source bitmap in bytes |
width |
Width of the source bitmap |
height |
Height of the source bitmap |
Return Value
Pointer to the rotated bitmap image in video memory
Description
This optional function, when implemented, will perform any necessary rotation or transformations on the source bitmap in as needed by the active filter drivers (ie: rotation, flipped, multi-controller etc). The resulting rotated or transformed bitmap will be stored in offscreen video memory, and a pointer to it returned to the caller.
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