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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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