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diff --git a/nx-X11/programs/Xserver/fb/fbblt.c b/nx-X11/programs/Xserver/fb/fbblt.c
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+/*
+ * Id: fbblt.c,v 1.1 1999/11/02 03:54:45 keithp Exp $
+ *
+ * Copyright © 1998 Keith Packard
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation, and that the name of Keith Packard not be used in
+ * advertising or publicity pertaining to distribution of the software without
+ * specific, written prior permission. Keith Packard makes no
+ * representations about the suitability of this software for any purpose. It
+ * is provided "as is" without express or implied warranty.
+ *
+ * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+/* $XFree86: xc/programs/Xserver/fb/fbblt.c,v 1.7 2000/09/22 05:58:01 keithp Exp $ */
+
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+#include "fb.h"
+
+#define InitializeShifts(sx,dx,ls,rs) { \
+ if (sx != dx) { \
+ if (sx > dx) { \
+ ls = sx - dx; \
+ rs = FB_UNIT - ls; \
+ } else { \
+ rs = dx - sx; \
+ ls = FB_UNIT - rs; \
+ } \
+ } \
+}
+
+void
+fbBlt (FbBits *srcLine,
+ FbStride srcStride,
+ int srcX,
+
+ FbBits *dstLine,
+ FbStride dstStride,
+ int dstX,
+
+ int width,
+ int height,
+
+ int alu,
+ FbBits pm,
+ int bpp,
+
+ Bool reverse,
+ Bool upsidedown)
+{
+ FbBits *src, *dst;
+ int leftShift, rightShift;
+ FbBits startmask, endmask;
+ FbBits bits, bits1;
+ int n, nmiddle;
+ Bool destInvarient;
+ int startbyte, endbyte;
+ FbDeclareMergeRop ();
+
+#ifdef FB_24BIT
+ if (bpp == 24 && !FbCheck24Pix (pm))
+ {
+ fbBlt24 (srcLine, srcStride, srcX, dstLine, dstStride, dstX,
+ width, height, alu, pm, reverse, upsidedown);
+ return;
+ }
+#endif
+ FbInitializeMergeRop(alu, pm);
+ destInvarient = FbDestInvarientMergeRop();
+ if (upsidedown)
+ {
+ srcLine += (height - 1) * (srcStride);
+ dstLine += (height - 1) * (dstStride);
+ srcStride = -srcStride;
+ dstStride = -dstStride;
+ }
+ FbMaskBitsBytes (dstX, width, destInvarient, startmask, startbyte,
+ nmiddle, endmask, endbyte);
+ if (reverse)
+ {
+ srcLine += ((srcX + width - 1) >> FB_SHIFT) + 1;
+ dstLine += ((dstX + width - 1) >> FB_SHIFT) + 1;
+ srcX = (srcX + width - 1) & FB_MASK;
+ dstX = (dstX + width - 1) & FB_MASK;
+ }
+ else
+ {
+ srcLine += srcX >> FB_SHIFT;
+ dstLine += dstX >> FB_SHIFT;
+ srcX &= FB_MASK;
+ dstX &= FB_MASK;
+ }
+ if (srcX == dstX)
+ {
+ while (height--)
+ {
+ src = srcLine;
+ srcLine += srcStride;
+ dst = dstLine;
+ dstLine += dstStride;
+ if (reverse)
+ {
+ if (endmask)
+ {
+ bits = *--src;
+ --dst;
+ FbDoRightMaskByteMergeRop(dst, bits, endbyte, endmask);
+ }
+ n = nmiddle;
+ if (destInvarient)
+ {
+ while (n--)
+ *--dst = FbDoDestInvarientMergeRop(*--src);
+ }
+ else
+ {
+ while (n--)
+ {
+ bits = *--src;
+ --dst;
+ *dst = FbDoMergeRop (bits, *dst);
+ }
+ }
+ if (startmask)
+ {
+ bits = *--src;
+ --dst;
+ FbDoLeftMaskByteMergeRop(dst, bits, startbyte, startmask);
+ }
+ }
+ else
+ {
+ if (startmask)
+ {
+ bits = *src++;
+ FbDoLeftMaskByteMergeRop(dst, bits, startbyte, startmask);
+ dst++;
+ }
+ n = nmiddle;
+ if (destInvarient)
+ {
+#if 0
+ /*
+ * This provides some speedup on screen->screen blts
+ * over the PCI bus, usually about 10%. But fb
+ * isn't usually used for this operation...
+ */
+ if (_ca2 + 1 == 0 && _cx2 == 0)
+ {
+ FbBits t1, t2, t3, t4;
+ while (n >= 4)
+ {
+ t1 = *src++;
+ t2 = *src++;
+ t3 = *src++;
+ t4 = *src++;
+ *dst++ = t1;
+ *dst++ = t2;
+ *dst++ = t3;
+ *dst++ = t4;
+ n -= 4;
+ }
+ }
+#endif
+ while (n--)
+ *dst++ = FbDoDestInvarientMergeRop(*src++);
+ }
+ else
+ {
+ while (n--)
+ {
+ bits = *src++;
+ *dst = FbDoMergeRop (bits, *dst);
+ dst++;
+ }
+ }
+ if (endmask)
+ {
+ bits = *src;
+ FbDoRightMaskByteMergeRop(dst, bits, endbyte, endmask);
+ }
+ }
+ }
+ }
+ else
+ {
+ if (srcX > dstX)
+ {
+ leftShift = srcX - dstX;
+ rightShift = FB_UNIT - leftShift;
+ }
+ else
+ {
+ rightShift = dstX - srcX;
+ leftShift = FB_UNIT - rightShift;
+ }
+ while (height--)
+ {
+ src = srcLine;
+ srcLine += srcStride;
+ dst = dstLine;
+ dstLine += dstStride;
+
+ bits1 = 0;
+ if (reverse)
+ {
+ if (srcX < dstX)
+ bits1 = *--src;
+ if (endmask)
+ {
+ bits = FbScrRight(bits1, rightShift);
+ if (FbScrRight(endmask, leftShift))
+ {
+ bits1 = *--src;
+ bits |= FbScrLeft(bits1, leftShift);
+ }
+ --dst;
+ FbDoRightMaskByteMergeRop(dst, bits, endbyte, endmask);
+ }
+ n = nmiddle;
+ if (destInvarient)
+ {
+ while (n--)
+ {
+ bits = FbScrRight(bits1, rightShift);
+ bits1 = *--src;
+ bits |= FbScrLeft(bits1, leftShift);
+ --dst;
+ *dst = FbDoDestInvarientMergeRop(bits);
+ }
+ }
+ else
+ {
+ while (n--)
+ {
+ bits = FbScrRight(bits1, rightShift);
+ bits1 = *--src;
+ bits |= FbScrLeft(bits1, leftShift);
+ --dst;
+ *dst = FbDoMergeRop(bits, *dst);
+ }
+ }
+ if (startmask)
+ {
+ bits = FbScrRight(bits1, rightShift);
+ if (FbScrRight(startmask, leftShift))
+ {
+ bits1 = *--src;
+ bits |= FbScrLeft(bits1, leftShift);
+ }
+ --dst;
+ FbDoLeftMaskByteMergeRop (dst, bits, startbyte, startmask);
+ }
+ }
+ else
+ {
+ if (srcX > dstX)
+ bits1 = *src++;
+ if (startmask)
+ {
+ bits = FbScrLeft(bits1, leftShift);
+ if (FbScrLeft(startmask, rightShift))
+ {
+ bits1 = *src++;
+ bits |= FbScrRight(bits1, rightShift);
+ }
+ FbDoLeftMaskByteMergeRop (dst, bits, startbyte, startmask);
+ dst++;
+ }
+ n = nmiddle;
+ if (destInvarient)
+ {
+ while (n--)
+ {
+ bits = FbScrLeft(bits1, leftShift);
+ bits1 = *src++;
+ bits |= FbScrRight(bits1, rightShift);
+ *dst = FbDoDestInvarientMergeRop(bits);
+ dst++;
+ }
+ }
+ else
+ {
+ while (n--)
+ {
+ bits = FbScrLeft(bits1, leftShift);
+ bits1 = *src++;
+ bits |= FbScrRight(bits1, rightShift);
+ *dst = FbDoMergeRop(bits, *dst);
+ dst++;
+ }
+ }
+ if (endmask)
+ {
+ bits = FbScrLeft(bits1, leftShift);
+ if (FbScrLeft(endmask, rightShift))
+ {
+ bits1 = *src;
+ bits |= FbScrRight(bits1, rightShift);
+ }
+ FbDoRightMaskByteMergeRop (dst, bits, endbyte, endmask);
+ }
+ }
+ }
+ }
+}
+
+#ifdef FB_24BIT
+
+#undef DEBUG_BLT24
+#ifdef DEBUG_BLT24
+
+static unsigned long
+getPixel (char *src, int x)
+{
+ unsigned long l;
+
+ l = 0;
+ memcpy (&l, src + x * 3, 3);
+ return l;
+}
+#endif
+
+static void
+fbBlt24Line (FbBits *src,
+ int srcX,
+
+ FbBits *dst,
+ int dstX,
+
+ int width,
+
+ int alu,
+ FbBits pm,
+
+ Bool reverse)
+{
+#ifdef DEBUG_BLT24
+ char *origDst = (char *) dst;
+ FbBits *origLine = dst + ((dstX >> FB_SHIFT) - 1);
+ int origNlw = ((width + FB_MASK) >> FB_SHIFT) + 3;
+ int origX = dstX / 24;
+#endif
+
+ int leftShift, rightShift;
+ FbBits startmask, endmask;
+ int n;
+
+ FbBits bits, bits1;
+ FbBits mask;
+
+ int rot;
+ FbDeclareMergeRop ();
+
+ FbInitializeMergeRop (alu, FB_ALLONES);
+ FbMaskBits(dstX, width, startmask, n, endmask);
+#ifdef DEBUG_BLT24
+ ErrorF ("dstX %d width %d reverse %d\n", dstX, width, reverse);
+#endif
+ if (reverse)
+ {
+ src += ((srcX + width - 1) >> FB_SHIFT) + 1;
+ dst += ((dstX + width - 1) >> FB_SHIFT) + 1;
+ rot = FbFirst24Rot (((dstX + width - 8) & FB_MASK));
+ rot = FbPrev24Rot(rot);
+#ifdef DEBUG_BLT24
+ ErrorF ("dstX + width - 8: %d rot: %d\n", (dstX + width - 8) & FB_MASK, rot);
+#endif
+ srcX = (srcX + width - 1) & FB_MASK;
+ dstX = (dstX + width - 1) & FB_MASK;
+ }
+ else
+ {
+ src += srcX >> FB_SHIFT;
+ dst += dstX >> FB_SHIFT;
+ srcX &= FB_MASK;
+ dstX &= FB_MASK;
+ rot = FbFirst24Rot (dstX);
+#ifdef DEBUG_BLT24
+ ErrorF ("dstX: %d rot: %d\n", dstX, rot);
+#endif
+ }
+ mask = FbRot24(pm,rot);
+#ifdef DEBUG_BLT24
+ ErrorF ("pm 0x%x mask 0x%x\n", pm, mask);
+#endif
+ if (srcX == dstX)
+ {
+ if (reverse)
+ {
+ if (endmask)
+ {
+ bits = *--src;
+ --dst;
+ *dst = FbDoMaskMergeRop (bits, *dst, mask & endmask);
+ mask = FbPrev24Pix (mask);
+ }
+ while (n--)
+ {
+ bits = *--src;
+ --dst;
+ *dst = FbDoMaskMergeRop (bits, *dst, mask);
+ mask = FbPrev24Pix (mask);
+ }
+ if (startmask)
+ {
+ bits = *--src;
+ --dst;
+ *dst = FbDoMaskMergeRop(bits, *dst, mask & startmask);
+ }
+ }
+ else
+ {
+ if (startmask)
+ {
+ bits = *src++;
+ *dst = FbDoMaskMergeRop (bits, *dst, mask & startmask);
+ dst++;
+ mask = FbNext24Pix(mask);
+ }
+ while (n--)
+ {
+ bits = *src++;
+ *dst = FbDoMaskMergeRop (bits, *dst, mask);
+ dst++;
+ mask = FbNext24Pix(mask);
+ }
+ if (endmask)
+ {
+ bits = *src;
+ *dst = FbDoMaskMergeRop(bits, *dst, mask & endmask);
+ }
+ }
+ }
+ else
+ {
+ if (srcX > dstX)
+ {
+ leftShift = srcX - dstX;
+ rightShift = FB_UNIT - leftShift;
+ }
+ else
+ {
+ rightShift = dstX - srcX;
+ leftShift = FB_UNIT - rightShift;
+ }
+
+ bits1 = 0;
+ if (reverse)
+ {
+ if (srcX < dstX)
+ bits1 = *--src;
+ if (endmask)
+ {
+ bits = FbScrRight(bits1, rightShift);
+ if (FbScrRight(endmask, leftShift))
+ {
+ bits1 = *--src;
+ bits |= FbScrLeft(bits1, leftShift);
+ }
+ --dst;
+ *dst = FbDoMaskMergeRop (bits, *dst, mask & endmask);
+ mask = FbPrev24Pix(mask);
+ }
+ while (n--)
+ {
+ bits = FbScrRight(bits1, rightShift);
+ bits1 = *--src;
+ bits |= FbScrLeft(bits1, leftShift);
+ --dst;
+ *dst = FbDoMaskMergeRop(bits, *dst, mask);
+ mask = FbPrev24Pix(mask);
+ }
+ if (startmask)
+ {
+ bits = FbScrRight(bits1, rightShift);
+ if (FbScrRight(startmask, leftShift))
+ {
+ bits1 = *--src;
+ bits |= FbScrLeft(bits1, leftShift);
+ }
+ --dst;
+ *dst = FbDoMaskMergeRop (bits, *dst, mask & startmask);
+ }
+ }
+ else
+ {
+ if (srcX > dstX)
+ bits1 = *src++;
+ if (startmask)
+ {
+ bits = FbScrLeft(bits1, leftShift);
+ bits1 = *src++;
+ bits |= FbScrRight(bits1, rightShift);
+ *dst = FbDoMaskMergeRop (bits, *dst, mask & startmask);
+ dst++;
+ mask = FbNext24Pix(mask);
+ }
+ while (n--)
+ {
+ bits = FbScrLeft(bits1, leftShift);
+ bits1 = *src++;
+ bits |= FbScrRight(bits1, rightShift);
+ *dst = FbDoMaskMergeRop(bits, *dst, mask);
+ dst++;
+ mask = FbNext24Pix(mask);
+ }
+ if (endmask)
+ {
+ bits = FbScrLeft(bits1, leftShift);
+ if (FbScrLeft(endmask, rightShift))
+ {
+ bits1 = *src;
+ bits |= FbScrRight(bits1, rightShift);
+ }
+ *dst = FbDoMaskMergeRop (bits, *dst, mask & endmask);
+ }
+ }
+ }
+#ifdef DEBUG_BLT24
+ {
+ int firstx, lastx, x;
+
+ firstx = origX;
+ if (firstx)
+ firstx--;
+ lastx = origX + width/24 + 1;
+ for (x = firstx; x <= lastx; x++)
+ ErrorF ("%06x ", getPixel (origDst, x));
+ ErrorF ("\n");
+ while (origNlw--)
+ ErrorF ("%08x ", *origLine++);
+ ErrorF ("\n");
+ }
+#endif
+}
+
+void
+fbBlt24 (FbBits *srcLine,
+ FbStride srcStride,
+ int srcX,
+
+ FbBits *dstLine,
+ FbStride dstStride,
+ int dstX,
+
+ int width,
+ int height,
+
+ int alu,
+ FbBits pm,
+
+ Bool reverse,
+ Bool upsidedown)
+{
+ if (upsidedown)
+ {
+ srcLine += (height-1) * srcStride;
+ dstLine += (height-1) * dstStride;
+ srcStride = -srcStride;
+ dstStride = -dstStride;
+ }
+ while (height--)
+ {
+ fbBlt24Line (srcLine, srcX, dstLine, dstX, width, alu, pm, reverse);
+ srcLine += srcStride;
+ dstLine += dstStride;
+ }
+#ifdef DEBUG_BLT24
+ ErrorF ("\n");
+#endif
+}
+#endif /* FB_24BIT */
+
+#if FB_SHIFT == FB_STIP_SHIFT + 1
+
+/*
+ * Could be generalized to FB_SHIFT > FB_STIP_SHIFT + 1 by
+ * creating an ring of values stepped through for each line
+ */
+
+void
+fbBltOdd (FbBits *srcLine,
+ FbStride srcStrideEven,
+ FbStride srcStrideOdd,
+ int srcXEven,
+ int srcXOdd,
+
+ FbBits *dstLine,
+ FbStride dstStrideEven,
+ FbStride dstStrideOdd,
+ int dstXEven,
+ int dstXOdd,
+
+ int width,
+ int height,
+
+ int alu,
+ FbBits pm,
+ int bpp)
+{
+ FbBits *src;
+ int leftShiftEven, rightShiftEven;
+ FbBits startmaskEven, endmaskEven;
+ int nmiddleEven;
+
+ FbBits *dst;
+ int leftShiftOdd, rightShiftOdd;
+ FbBits startmaskOdd, endmaskOdd;
+ int nmiddleOdd;
+
+ int leftShift, rightShift;
+ FbBits startmask, endmask;
+ int nmiddle;
+
+ int srcX, dstX;
+
+ FbBits bits, bits1;
+ int n;
+
+ Bool destInvarient;
+ Bool even;
+ FbDeclareMergeRop ();
+
+ FbInitializeMergeRop (alu, pm);
+ destInvarient = FbDestInvarientMergeRop();
+
+ srcLine += srcXEven >> FB_SHIFT;
+ dstLine += dstXEven >> FB_SHIFT;
+ srcXEven &= FB_MASK;
+ dstXEven &= FB_MASK;
+ srcXOdd &= FB_MASK;
+ dstXOdd &= FB_MASK;
+
+ FbMaskBits(dstXEven, width, startmaskEven, nmiddleEven, endmaskEven);
+ FbMaskBits(dstXOdd, width, startmaskOdd, nmiddleOdd, endmaskOdd);
+
+ even = TRUE;
+ InitializeShifts(srcXEven, dstXEven, leftShiftEven, rightShiftEven);
+ InitializeShifts(srcXOdd, dstXOdd, leftShiftOdd, rightShiftOdd);
+ while (height--)
+ {
+ src = srcLine;
+ dst = dstLine;
+ if (even)
+ {
+ srcX = srcXEven;
+ dstX = dstXEven;
+ startmask = startmaskEven;
+ endmask = endmaskEven;
+ nmiddle = nmiddleEven;
+ leftShift = leftShiftEven;
+ rightShift = rightShiftEven;
+ srcLine += srcStrideEven;
+ dstLine += dstStrideEven;
+ even = FALSE;
+ }
+ else
+ {
+ srcX = srcXOdd;
+ dstX = dstXOdd;
+ startmask = startmaskOdd;
+ endmask = endmaskOdd;
+ nmiddle = nmiddleOdd;
+ leftShift = leftShiftOdd;
+ rightShift = rightShiftOdd;
+ srcLine += srcStrideOdd;
+ dstLine += dstStrideOdd;
+ even = TRUE;
+ }
+ if (srcX == dstX)
+ {
+ if (startmask)
+ {
+ bits = *src++;
+ *dst = FbDoMaskMergeRop (bits, *dst, startmask);
+ dst++;
+ }
+ n = nmiddle;
+ if (destInvarient)
+ {
+ while (n--)
+ {
+ bits = *src++;
+ *dst = FbDoDestInvarientMergeRop(bits);
+ dst++;
+ }
+ }
+ else
+ {
+ while (n--)
+ {
+ bits = *src++;
+ *dst = FbDoMergeRop (bits, *dst);
+ dst++;
+ }
+ }
+ if (endmask)
+ {
+ bits = *src;
+ *dst = FbDoMaskMergeRop(bits, *dst, endmask);
+ }
+ }
+ else
+ {
+ bits = 0;
+ if (srcX > dstX)
+ bits = *src++;
+ if (startmask)
+ {
+ bits1 = FbScrLeft(bits, leftShift);
+ bits = *src++;
+ bits1 |= FbScrRight(bits, rightShift);
+ *dst = FbDoMaskMergeRop (bits1, *dst, startmask);
+ dst++;
+ }
+ n = nmiddle;
+ if (destInvarient)
+ {
+ while (n--)
+ {
+ bits1 = FbScrLeft(bits, leftShift);
+ bits = *src++;
+ bits1 |= FbScrRight(bits, rightShift);
+ *dst = FbDoDestInvarientMergeRop(bits1);
+ dst++;
+ }
+ }
+ else
+ {
+ while (n--)
+ {
+ bits1 = FbScrLeft(bits, leftShift);
+ bits = *src++;
+ bits1 |= FbScrRight(bits, rightShift);
+ *dst = FbDoMergeRop(bits1, *dst);
+ dst++;
+ }
+ }
+ if (endmask)
+ {
+ bits1 = FbScrLeft(bits, leftShift);
+ if (FbScrLeft(endmask, rightShift))
+ {
+ bits = *src;
+ bits1 |= FbScrRight(bits, rightShift);
+ }
+ *dst = FbDoMaskMergeRop (bits1, *dst, endmask);
+ }
+ }
+ }
+}
+
+#ifdef FB_24BIT
+void
+fbBltOdd24 (FbBits *srcLine,
+ FbStride srcStrideEven,
+ FbStride srcStrideOdd,
+ int srcXEven,
+ int srcXOdd,
+
+ FbBits *dstLine,
+ FbStride dstStrideEven,
+ FbStride dstStrideOdd,
+ int dstXEven,
+ int dstXOdd,
+
+ int width,
+ int height,
+
+ int alu,
+ FbBits pm)
+{
+ Bool even = TRUE;
+
+ while (height--)
+ {
+ if (even)
+ {
+ fbBlt24Line (srcLine, srcXEven, dstLine, dstXEven,
+ width, alu, pm, FALSE);
+ srcLine += srcStrideEven;
+ dstLine += dstStrideEven;
+ even = FALSE;
+ }
+ else
+ {
+ fbBlt24Line (srcLine, srcXOdd, dstLine, dstXOdd,
+ width, alu, pm, FALSE);
+ srcLine += srcStrideOdd;
+ dstLine += dstStrideOdd;
+ even = TRUE;
+ }
+ }
+#if 0
+ fprintf (stderr, "\n");
+#endif
+}
+#endif
+
+#endif
+
+#if FB_STIP_SHIFT != FB_SHIFT
+void
+fbSetBltOdd (FbStip *stip,
+ FbStride stipStride,
+ int srcX,
+ FbBits **bits,
+ FbStride *strideEven,
+ FbStride *strideOdd,
+ int *srcXEven,
+ int *srcXOdd)
+{
+ int srcAdjust;
+ int strideAdjust;
+
+ /*
+ * bytes needed to align source
+ */
+ srcAdjust = (((int) stip) & (FB_MASK >> 3));
+ /*
+ * FbStip units needed to align stride
+ */
+ strideAdjust = stipStride & (FB_MASK >> FB_STIP_SHIFT);
+
+ *bits = (FbBits *) ((char *) stip - srcAdjust);
+ if (srcAdjust)
+ {
+ *strideEven = FbStipStrideToBitsStride (stipStride + 1);
+ *strideOdd = FbStipStrideToBitsStride (stipStride);
+
+ *srcXEven = srcX + (srcAdjust << 3);
+ *srcXOdd = srcX + (srcAdjust << 3) - (strideAdjust << FB_STIP_SHIFT);
+ }
+ else
+ {
+ *strideEven = FbStipStrideToBitsStride (stipStride);
+ *strideOdd = FbStipStrideToBitsStride (stipStride + 1);
+
+ *srcXEven = srcX;
+ *srcXOdd = srcX + (strideAdjust << FB_STIP_SHIFT);
+ }
+}
+#endif
+
+void
+fbBltStip (FbStip *src,
+ FbStride srcStride, /* in FbStip units, not FbBits units */
+ int srcX,
+
+ FbStip *dst,
+ FbStride dstStride, /* in FbStip units, not FbBits units */
+ int dstX,
+
+ int width,
+ int height,
+
+ int alu,
+ FbBits pm,
+ int bpp)
+{
+#if FB_STIP_SHIFT != FB_SHIFT
+ if (FB_STIP_ODDSTRIDE(srcStride) || FB_STIP_ODDPTR(src) ||
+ FB_STIP_ODDSTRIDE(dstStride) || FB_STIP_ODDPTR(dst))
+ {
+ FbStride srcStrideEven, srcStrideOdd;
+ FbStride dstStrideEven, dstStrideOdd;
+ int srcXEven, srcXOdd;
+ int dstXEven, dstXOdd;
+ FbBits *s, *d;
+ int sx, dx;
+
+ src += srcX >> FB_STIP_SHIFT;
+ srcX &= FB_STIP_MASK;
+ dst += dstX >> FB_STIP_SHIFT;
+ dstX &= FB_STIP_MASK;
+
+ fbSetBltOdd (src, srcStride, srcX,
+ &s,
+ &srcStrideEven, &srcStrideOdd,
+ &srcXEven, &srcXOdd);
+
+ fbSetBltOdd (dst, dstStride, dstX,
+ &d,
+ &dstStrideEven, &dstStrideOdd,
+ &dstXEven, &dstXOdd);
+
+#ifdef FB_24BIT
+ if (bpp == 24 && !FbCheck24Pix (pm))
+ {
+ fbBltOdd24 (s, srcStrideEven, srcStrideOdd,
+ srcXEven, srcXOdd,
+
+ d, dstStrideEven, dstStrideOdd,
+ dstXEven, dstXOdd,
+
+ width, height, alu, pm);
+ }
+ else
+#endif
+ {
+ fbBltOdd (s, srcStrideEven, srcStrideOdd,
+ srcXEven, srcXOdd,
+
+ d, dstStrideEven, dstStrideOdd,
+ dstXEven, dstXOdd,
+
+ width, height, alu, pm, bpp);
+ }
+ }
+ else
+#endif
+ {
+ fbBlt ((FbBits *) src, FbStipStrideToBitsStride (srcStride),
+ srcX,
+ (FbBits *) dst, FbStipStrideToBitsStride (dstStride),
+ dstX,
+ width, height,
+ alu, pm, bpp, FALSE, FALSE);
+ }
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-10 20:00:48 +0000