BitBltBuf
Copies pixels from one buffer into the currently active buffer
Declaration
void GA_bufferFuncs::BitBltBuf(
GA_buf *buf,
N_int32 srcLeft,
N_int32 srcTop,
N_int32 width,
N_int32 height,
N_int32 dstLeft,
N_int32 dstTop,
N_int32 mix)
Prototype In
snap/graphics.h
Parameters
buf |
SNAP buffer to blit to the active surface |
srcLeft |
Left coordinate of the source rectangle to copy |
srcTop |
Top coordinate of the source rectangle to copy |
width |
Width of the rectangle in pixels |
height |
Height of the rectangle in scanlines |
dstLeft |
Left coordinate of destination |
dstTop |
Top coordinate of destination |
mix |
Mix code for the copy (GA_mixCodesType) |
Description
This function copies a rectangular region from the source buffer to the active drawing surface, copying from (srcLeft, srcTop, srcLeft+width-1, srcTop+height-1) in the source buffer to (dstLeft, dstTop) in the active buffer. The specified mix is used to combine the pixels in the active buffer. This function will also correctly handle cases of overlapping regions if the source buffer is the same as the active buffer.
See Also
BitBltPattBuf, BitBltColorPattBuf, SrcTransBltBuf, DstTransBltBuf, BitBltPlaneMaskedBuf, BitBltFxBuf, DrawRectBuf
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