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-rw-r--r--mi/mipushpxl.c274
1 files changed, 126 insertions, 148 deletions
diff --git a/mi/mipushpxl.c b/mi/mipushpxl.c
index 9f0429867..9a78f4050 100644
--- a/mi/mipushpxl.c
+++ b/mi/mipushpxl.c
@@ -22,7 +22,6 @@ Except as contained in this notice, the name of The Open Group shall not be
used in advertising or otherwise to promote the sale, use or other dealings
in this Software without prior written authorization from The Open Group.
-
Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
All Rights Reserved
@@ -65,9 +64,8 @@ SOFTWARE.
| ( ( ( x ) & (MiBits)0x00FF0000 ) >> 0x08 ) \
| ( ( ( x ) & (MiBits)0xFF000000 ) >> 0x18 ) )
-
#define PGSZB 4
-#define PPW (PGSZB<<3) /* assuming 8 bits per byte */
+#define PPW (PGSZB<<3) /* assuming 8 bits per byte */
#define PGSZ PPW
#define PLST (PPW-1)
#define PIM PLST
@@ -96,176 +94,156 @@ void
miPushPixels(GCPtr pGC, PixmapPtr pBitMap, DrawablePtr pDrawable,
int dx, int dy, int xOrg, int yOrg)
{
- int h, dxDivPPW, ibEnd;
- MiBits *pwLineStart;
- MiBits *pw, *pwEnd;
- MiBits msk;
- int ib, w;
- int ipt; /* index into above arrays */
- Bool fInBox;
- DDXPointRec pt[NPT], ptThisLine;
- int width[NPT];
+ int h, dxDivPPW, ibEnd;
+ MiBits *pwLineStart;
+ MiBits *pw, *pwEnd;
+ MiBits msk;
+ int ib, w;
+ int ipt; /* index into above arrays */
+ Bool fInBox;
+ DDXPointRec pt[NPT], ptThisLine;
+ int width[NPT];
+
#if 1
- MiBits startmask;
+ MiBits startmask;
+
if (screenInfo.bitmapBitOrder == IMAGE_BYTE_ORDER)
- if (screenInfo.bitmapBitOrder == LSBFirst)
- startmask = (MiBits)(-1) ^
- LONG2CHARSSAMEORDER((MiBits)(-1) << 1);
- else
- startmask = (MiBits)(-1) ^
- LONG2CHARSSAMEORDER((MiBits)(-1) >> 1);
+ if (screenInfo.bitmapBitOrder == LSBFirst)
+ startmask = (MiBits) (-1) ^ LONG2CHARSSAMEORDER((MiBits) (-1) << 1);
+ else
+ startmask = (MiBits) (-1) ^ LONG2CHARSSAMEORDER((MiBits) (-1) >> 1);
+ else if (screenInfo.bitmapBitOrder == LSBFirst)
+ startmask = (MiBits) (-1) ^ LONG2CHARSDIFFORDER((MiBits) (-1) << 1);
else
- if (screenInfo.bitmapBitOrder == LSBFirst)
- startmask = (MiBits)(-1) ^
- LONG2CHARSDIFFORDER((MiBits)(-1) << 1);
- else
- startmask = (MiBits)(-1) ^
- LONG2CHARSDIFFORDER((MiBits)(-1) >> 1);
+ startmask = (MiBits) (-1) ^ LONG2CHARSDIFFORDER((MiBits) (-1) >> 1);
#endif
pwLineStart = malloc(BitmapBytePad(dx));
if (!pwLineStart)
- return;
+ return;
ipt = 0;
- dxDivPPW = dx/PPW;
+ dxDivPPW = dx / PPW;
+
+ for (h = 0, ptThisLine.x = 0, ptThisLine.y = 0; h < dy; h++, ptThisLine.y++) {
- for(h = 0, ptThisLine.x = 0, ptThisLine.y = 0;
- h < dy;
- h++, ptThisLine.y++)
- {
+ (*pBitMap->drawable.pScreen->GetSpans) ((DrawablePtr) pBitMap, dx,
+ &ptThisLine, &dx, 1,
+ (char *) pwLineStart);
- (*pBitMap->drawable.pScreen->GetSpans)((DrawablePtr)pBitMap, dx,
- &ptThisLine, &dx, 1, (char *)pwLineStart);
+ pw = pwLineStart;
+ /* Process all words which are fully in the pixmap */
- pw = pwLineStart;
- /* Process all words which are fully in the pixmap */
-
- fInBox = FALSE;
- pwEnd = pwLineStart + dxDivPPW;
- while(pw < pwEnd)
- {
- w = *pw;
+ fInBox = FALSE;
+ pwEnd = pwLineStart + dxDivPPW;
+ while (pw < pwEnd) {
+ w = *pw;
#if 1
- msk = startmask;
+ msk = startmask;
#else
- msk = (MiBits)(-1) ^ SCRRIGHT((MiBits)(-1), 1);
+ msk = (MiBits) (-1) ^ SCRRIGHT((MiBits) (-1), 1);
#endif
- for(ib = 0; ib < PPW; ib++)
- {
- if(w & msk)
- {
- if(!fInBox)
- {
- pt[ipt].x = ((pw - pwLineStart) << PWSH) + ib + xOrg;
- pt[ipt].y = h + yOrg;
- /* start new box */
- fInBox = TRUE;
- }
- }
- else
- {
- if(fInBox)
- {
- width[ipt] = ((pw - pwLineStart) << PWSH) +
- ib + xOrg - pt[ipt].x;
- if (++ipt >= NPT)
- {
- (*pGC->ops->FillSpans)(pDrawable, pGC,
- NPT, pt, width, TRUE);
- ipt = 0;
- }
- /* end box */
- fInBox = FALSE;
- }
- }
+ for (ib = 0; ib < PPW; ib++) {
+ if (w & msk) {
+ if (!fInBox) {
+ pt[ipt].x = ((pw - pwLineStart) << PWSH) + ib + xOrg;
+ pt[ipt].y = h + yOrg;
+ /* start new box */
+ fInBox = TRUE;
+ }
+ }
+ else {
+ if (fInBox) {
+ width[ipt] = ((pw - pwLineStart) << PWSH) +
+ ib + xOrg - pt[ipt].x;
+ if (++ipt >= NPT) {
+ (*pGC->ops->FillSpans) (pDrawable, pGC,
+ NPT, pt, width, TRUE);
+ ipt = 0;
+ }
+ /* end box */
+ fInBox = FALSE;
+ }
+ }
#if 1
- /* This is not quite right, but it'll do for now */
- if (screenInfo.bitmapBitOrder == IMAGE_BYTE_ORDER)
- if (screenInfo.bitmapBitOrder == LSBFirst)
- msk = LONG2CHARSSAMEORDER(LONG2CHARSSAMEORDER(msk) << 1);
- else
- msk = LONG2CHARSSAMEORDER(LONG2CHARSSAMEORDER(msk) >> 1);
- else
- if (screenInfo.bitmapBitOrder == LSBFirst)
- msk = LONG2CHARSDIFFORDER(LONG2CHARSDIFFORDER(msk) << 1);
- else
- msk = LONG2CHARSDIFFORDER(LONG2CHARSDIFFORDER(msk) >> 1);
+ /* This is not quite right, but it'll do for now */
+ if (screenInfo.bitmapBitOrder == IMAGE_BYTE_ORDER)
+ if (screenInfo.bitmapBitOrder == LSBFirst)
+ msk =
+ LONG2CHARSSAMEORDER(LONG2CHARSSAMEORDER(msk) << 1);
+ else
+ msk =
+ LONG2CHARSSAMEORDER(LONG2CHARSSAMEORDER(msk) >> 1);
+ else if (screenInfo.bitmapBitOrder == LSBFirst)
+ msk = LONG2CHARSDIFFORDER(LONG2CHARSDIFFORDER(msk) << 1);
+ else
+ msk = LONG2CHARSDIFFORDER(LONG2CHARSDIFFORDER(msk) >> 1);
#else
- msk = SCRRIGHT(msk, 1);
+ msk = SCRRIGHT(msk, 1);
#endif
- }
- pw++;
- }
- ibEnd = dx & PIM;
- if(ibEnd)
- {
- /* Process final partial word on line */
- w = *pw;
+ }
+ pw++;
+ }
+ ibEnd = dx & PIM;
+ if (ibEnd) {
+ /* Process final partial word on line */
+ w = *pw;
#if 1
- msk = startmask;
+ msk = startmask;
#else
- msk = (MiBits)(-1) ^ SCRRIGHT((MiBits)(-1), 1);
+ msk = (MiBits) (-1) ^ SCRRIGHT((MiBits) (-1), 1);
#endif
- for(ib = 0; ib < ibEnd; ib++)
- {
- if(w & msk)
- {
- if(!fInBox)
- {
- /* start new box */
- pt[ipt].x = ((pw - pwLineStart) << PWSH) + ib + xOrg;
- pt[ipt].y = h + yOrg;
- fInBox = TRUE;
- }
- }
- else
- {
- if(fInBox)
- {
- /* end box */
- width[ipt] = ((pw - pwLineStart) << PWSH) +
- ib + xOrg - pt[ipt].x;
- if (++ipt >= NPT)
- {
- (*pGC->ops->FillSpans)(pDrawable,
- pGC, NPT, pt, width, TRUE);
- ipt = 0;
- }
- fInBox = FALSE;
- }
- }
+ for (ib = 0; ib < ibEnd; ib++) {
+ if (w & msk) {
+ if (!fInBox) {
+ /* start new box */
+ pt[ipt].x = ((pw - pwLineStart) << PWSH) + ib + xOrg;
+ pt[ipt].y = h + yOrg;
+ fInBox = TRUE;
+ }
+ }
+ else {
+ if (fInBox) {
+ /* end box */
+ width[ipt] = ((pw - pwLineStart) << PWSH) +
+ ib + xOrg - pt[ipt].x;
+ if (++ipt >= NPT) {
+ (*pGC->ops->FillSpans) (pDrawable,
+ pGC, NPT, pt, width, TRUE);
+ ipt = 0;
+ }
+ fInBox = FALSE;
+ }
+ }
#if 1
- /* This is not quite right, but it'll do for now */
- if (screenInfo.bitmapBitOrder == IMAGE_BYTE_ORDER)
- if (screenInfo.bitmapBitOrder == LSBFirst)
- msk = LONG2CHARSSAMEORDER(LONG2CHARSSAMEORDER(msk) << 1);
- else
- msk = LONG2CHARSSAMEORDER(LONG2CHARSSAMEORDER(msk) >> 1);
- else
- if (screenInfo.bitmapBitOrder == LSBFirst)
- msk = LONG2CHARSDIFFORDER(LONG2CHARSDIFFORDER(msk) << 1);
- else
- msk = LONG2CHARSDIFFORDER(LONG2CHARSDIFFORDER(msk) >> 1);
+ /* This is not quite right, but it'll do for now */
+ if (screenInfo.bitmapBitOrder == IMAGE_BYTE_ORDER)
+ if (screenInfo.bitmapBitOrder == LSBFirst)
+ msk =
+ LONG2CHARSSAMEORDER(LONG2CHARSSAMEORDER(msk) << 1);
+ else
+ msk =
+ LONG2CHARSSAMEORDER(LONG2CHARSSAMEORDER(msk) >> 1);
+ else if (screenInfo.bitmapBitOrder == LSBFirst)
+ msk = LONG2CHARSDIFFORDER(LONG2CHARSDIFFORDER(msk) << 1);
+ else
+ msk = LONG2CHARSDIFFORDER(LONG2CHARSDIFFORDER(msk) >> 1);
#else
- msk = SCRRIGHT(msk, 1);
+ msk = SCRRIGHT(msk, 1);
#endif
- }
- }
- /* If scanline ended with last bit set, end the box */
- if(fInBox)
- {
- width[ipt] = dx + xOrg - pt[ipt].x;
- if (++ipt >= NPT)
- {
- (*pGC->ops->FillSpans)(pDrawable, pGC, NPT, pt, width, TRUE);
- ipt = 0;
- }
- }
+ }
+ }
+ /* If scanline ended with last bit set, end the box */
+ if (fInBox) {
+ width[ipt] = dx + xOrg - pt[ipt].x;
+ if (++ipt >= NPT) {
+ (*pGC->ops->FillSpans) (pDrawable, pGC, NPT, pt, width, TRUE);
+ ipt = 0;
+ }
+ }
}
free(pwLineStart);
/* Flush any remaining spans */
- if (ipt)
- {
- (*pGC->ops->FillSpans)(pDrawable, pGC, ipt, pt, width, TRUE);
+ if (ipt) {
+ (*pGC->ops->FillSpans) (pDrawable, pGC, ipt, pt, width, TRUE);
}
}
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