xserver-multidpi/hw/xfree86/xaa/xaaRect.c
Paulo Cesar Pereira de Andrade 49f77fff14 Rework symbol visibility for easier maintenance
Save in a few special cases, _X_EXPORT should not be used in C source
files. Instead, it should be used in headers, and the proper C source
include that header. Some special cases are symbols that need to be
shared between modules, but not expected to be used by external drivers,
and symbols that are accessible via LoaderSymbol/dlopen.

  This patch also adds conditionally some new sdk header files, depending
on extensions enabled. These files were added to match pattern for
other extensions/modules, that is, have the headers "deciding" symbol
visibility in the sdk. These headers are:
o Xext/panoramiXsrv.h, Xext/panoramiX.h
o fbpict.h (unconditionally)
o vidmodeproc.h
o mioverlay.h (unconditionally, used only by xaa)
o xfixes.h (unconditionally, symbols required by dri2)

  LoaderSymbol and similar functions now don't have different prototypes,
in loaderProcs.h and xf86Module.h, so that both headers can be included,
without the need of defining IN_LOADER.

  xf86NewInputDevice() device prototype readded to xf86Xinput.h, but
not exported (and with a comment about it).
2008-12-03 05:43:34 -02:00

137 lines
3.7 KiB
C

#ifdef HAVE_XORG_CONFIG_H
#include <xorg-config.h>
#endif
#include "misc.h"
#include "xf86.h"
#include "xf86_OSproc.h"
#include <X11/X.h>
#include "scrnintstr.h"
#include "pixmapstr.h"
#include "xf86str.h"
#include "xaa.h"
#include "xaalocal.h"
/*
Much of this file based on code by
Harm Hanemaayer (H.Hanemaayer@inter.nl.net).
*/
void
XAAPolyRectangleThinSolid(
DrawablePtr pDrawable,
GCPtr pGC,
int nRectsInit,
xRectangle *pRectsInit )
{
XAAInfoRecPtr infoRec = GET_XAAINFORECPTR_FROM_GC(pGC);
int nClipRects; /* number of clip rectangles */
BoxPtr pClipRects; /* points to the list of clip rects */
int xOrigin; /* Drawables x origin */
int yOrigin; /* Drawables x origin */
xRectangle *pRect; /* list of rects */
int nRects; /* running count of number of rects */
int origX1, origY1; /* original rectangle's U/L corner */
int origX2, origY2; /* original rectangle's L/R corner */
int clippedX1; /* clipped rectangle's left x */
int clippedY1; /* clipped rectangle's top y */
int clippedX2; /* clipped rectangle's right x */
int clippedY2; /* clipped rectangle's bottom y */
int clipXMin; /* upper left corner of clip rect */
int clipYMin; /* upper left corner of clip rect */
int clipXMax; /* lower right corner of clip rect */
int clipYMax; /* lower right corner of clip rect */
int width, height; /* width and height of rect */
nClipRects = REGION_NUM_RECTS(pGC->pCompositeClip);
pClipRects = REGION_RECTS(pGC->pCompositeClip);
if(!nClipRects) return;
xOrigin = pDrawable->x;
yOrigin = pDrawable->y;
(*infoRec->SetupForSolidLine)(infoRec->pScrn,
pGC->fgPixel, pGC->alu, pGC->planemask);
for ( ; nClipRects > 0;
nClipRects--, pClipRects++ )
{
clipYMin = pClipRects->y1;
clipYMax = pClipRects->y2 - 1;
clipXMin = pClipRects->x1;
clipXMax = pClipRects->x2 - 1;
for (pRect = pRectsInit, nRects = nRectsInit;
nRects > 0;
nRects--, pRect++ )
{
/* translate rectangle data over to the drawable */
origX1 = pRect->x + xOrigin;
origY1 = pRect->y + yOrigin;
origX2 = origX1 + pRect->width;
origY2 = origY1 + pRect->height;
/* reject entire rectangle if completely outside clip rect */
if ((origX1 > clipXMax) || (origX2 < clipXMin) ||
(origY1 > clipYMax) || (origY2 < clipYMin))
continue;
/* clip the rectangle */
clippedX1 = max (origX1, clipXMin);
clippedX2 = min (origX2, clipXMax);
clippedY1 = max (origY1, clipYMin);
clippedY2 = min (origY2, clipYMax);
width = clippedX2 - clippedX1 + 1;
if (origY1 >= clipYMin) {
(*infoRec->SubsequentSolidHorVertLine)(infoRec->pScrn,
clippedX1, clippedY1, width, DEGREES_0);
/* don't overwrite corner */
clippedY1++;
}
if ((origY2 <= clipYMax) && (origY1 != origY2)) {
(*infoRec->SubsequentSolidHorVertLine)(infoRec->pScrn,
clippedX1, clippedY2, width, DEGREES_0);
/* don't overwrite corner */
clippedY2--;
}
if (clippedY2 < clippedY1) continue;
height = clippedY2 - clippedY1 + 1;
/* draw vertical edges using lines if not clipped out */
if (origX1 >= clipXMin)
(*infoRec->SubsequentSolidHorVertLine)(infoRec->pScrn,
clippedX1, clippedY1, height, DEGREES_270);
if ((origX2 <= clipXMax) && (origX2 != origX1))
(*infoRec->SubsequentSolidHorVertLine)(infoRec->pScrn,
clippedX2, clippedY1, height, DEGREES_270);
}
}
SET_SYNC_FLAG(infoRec);
}