xserver-multidpi/mi/mispans.h
Keith Packard 2dc138922b Rename region macros to eliminate screen argument
This is a combination of a huge mechanical patch and a few small
fixups required to finish the job. They were reviewed separately, but
because the server does not build without both pieces, I've merged
them together at this time.

The mechanical changes were performed by running the included
'fix-region' script over the whole tree:

$ git ls-files | grep -v '^fix-' | xargs ./fix-region

And then, the white space errors in the resulting patch were fixed
using the provided fix-patch-whitespace script.

$ sh ./fix-patch-whitespace

Thanks to Jamey Sharp for the mighty fine sed-generating sed script.

The hand-done changes involve removing functions from dix/region.c
that duplicate inline functions in include/regionstr.h, along with
their declarations in regionstr.h, mi.h and mispans.h.

Reviewed-by: Jamey Sharp <jamey@minilop.net>
Signed-off-by: Keith Packard <keithp@keithp.com>
2010-06-05 18:59:00 -07:00

93 lines
3.6 KiB
C

/***********************************************************
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#ifndef MISPANS_H
#define MISPANS_H
typedef struct {
int count; /* number of spans */
DDXPointPtr points; /* pointer to list of start points */
int *widths; /* pointer to list of widths */
} Spans;
typedef struct {
int size; /* Total number of *Spans allocated */
int count; /* Number of *Spans actually in group */
Spans *group; /* List of Spans */
int ymin, ymax; /* Min, max y values encountered */
} SpanGroup;
/* Initialize SpanGroup. MUST BE DONE before use. */
extern _X_EXPORT void miInitSpanGroup(
SpanGroup * /*spanGroup*/
);
/* Add a Spans to a SpanGroup. The spans MUST BE in y-sorted order */
extern _X_EXPORT void miAppendSpans(
SpanGroup * /*spanGroup*/,
SpanGroup * /*otherGroup*/,
Spans * /*spans*/
);
/* Paint a span group, insuring that each pixel is painted at most once */
extern _X_EXPORT void miFillUniqueSpanGroup(
DrawablePtr /*pDraw*/,
GCPtr /*pGC*/,
SpanGroup * /*spanGroup*/
);
/* Free up data in a span group. MUST BE DONE or you'll suffer memory leaks */
extern _X_EXPORT void miFreeSpanGroup(
SpanGroup * /*spanGroup*/
);
/* Rops which must use span groups */
#define miSpansCarefulRop(rop) (((rop) & 0xc) == 0x8 || ((rop) & 0x3) == 0x2)
#define miSpansEasyRop(rop) (!miSpansCarefulRop(rop))
#endif /* MISPANS_H */