R6.6 is the Xorg base-line

1 files changed, 248 insertions, 0 deletions

diff --git a/mi/miglblt.c b/mi/miglblt.c
new file mode 100644
index 000000000..4a7a8eaeb
--- /dev/null
+++ b/mi/miglblt.c
@@ -0,0 +1,248 @@
+/***********************************************************
+
+Copyright 1987, 1998  The Open Group
+
+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.
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
+OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+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
+
+Permission to use, copy, modify, and distribute this software and its 
+documentation for any purpose and without fee is hereby granted, 
+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 Digital not be
+used in advertising or publicity pertaining to distribution of the
+software without specific, written prior permission.  
+
+DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
+ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
+DIGITAL 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.
+
+******************************************************************/
+
+/* $Xorg: miglblt.c,v 1.4 2001/02/09 02:05:21 xorgcvs Exp $ */
+
+#include	"X.h"
+#include	"Xmd.h"
+#include	"Xproto.h"
+#include	"misc.h"
+#include	"fontstruct.h"
+#include	"dixfontstr.h"
+#include	"gcstruct.h"
+#include	"windowstr.h"
+#include	"scrnintstr.h"
+#include	"pixmap.h"
+#include	"servermd.h"
+
+/*
+    machine-independent glyph blt.
+    assumes that glyph bits in snf are written in bytes,
+have same bit order as the server's bitmap format,
+and are byte padded.  this corresponds to the snf distributed
+with the sample server.
+
+    get a scratch GC.
+    in the scratch GC set alu = GXcopy, fg = 1, bg = 0
+    allocate a bitmap big enough to hold the largest glyph in the font
+    validate the scratch gc with the bitmap
+    for each glyph
+	carefully put the bits of the glyph in a buffer,
+	    padded to the server pixmap scanline padding rules
+	fake a call to PutImage from the buffer into the bitmap
+	use the bitmap in a call to PushPixels
+*/
+
+void
+miPolyGlyphBlt(pDrawable, pGC, x, y, nglyph, ppci, pglyphBase)
+    DrawablePtr pDrawable;
+    GC 		*pGC;
+    int 	x, y;
+    unsigned int nglyph;
+    CharInfoPtr *ppci;		/* array of character info */
+    unsigned char *pglyphBase;	/* start of array of glyphs */
+{
+    int width, height;
+    PixmapPtr pPixmap;
+    int nbyLine;			/* bytes per line of padded pixmap */
+    FontPtr pfont;
+    GCPtr pGCtmp;
+    register int i;
+    register int j;
+    unsigned char *pbits;		/* buffer for PutImage */
+    register unsigned char *pb;		/* temp pointer into buffer */
+    register CharInfoPtr pci;		/* currect char info */
+    register unsigned char *pglyph;	/* pointer bits in glyph */
+    int gWidth, gHeight;		/* width and height of glyph */
+    register int nbyGlyphWidth;		/* bytes per scanline of glyph */
+    int nbyPadGlyph;			/* server padded line of glyph */
+
+    XID gcvals[3];
+
+    if (pGC->miTranslate)
+    {
+	x += pDrawable->x;
+	y += pDrawable->y;
+    }
+
+    pfont = pGC->font;
+    width = FONTMAXBOUNDS(pfont,rightSideBearing) - 
+	    FONTMINBOUNDS(pfont,leftSideBearing);
+    height = FONTMAXBOUNDS(pfont,ascent) +
+	     FONTMAXBOUNDS(pfont,descent);
+
+    pPixmap = (*pDrawable->pScreen->CreatePixmap)(pDrawable->pScreen,
+						  width, height, 1);
+    if (!pPixmap)
+	return;
+
+    pGCtmp = GetScratchGC(1, pDrawable->pScreen);
+    if (!pGCtmp)
+    {
+	(*pDrawable->pScreen->DestroyPixmap)(pPixmap);
+	return;
+    }
+
+    gcvals[0] = GXcopy;
+    gcvals[1] = 1;
+    gcvals[2] = 0;
+
+    DoChangeGC(pGCtmp, GCFunction|GCForeground|GCBackground, gcvals, 0);
+
+    nbyLine = BitmapBytePad(width);
+    pbits = (unsigned char *)ALLOCATE_LOCAL(height*nbyLine);
+    if (!pbits)
+    {
+	(*pDrawable->pScreen->DestroyPixmap)(pPixmap);
+	FreeScratchGC(pGCtmp);
+        return;
+    }
+    while(nglyph--)
+    {
+	pci = *ppci++;
+	pglyph = FONTGLYPHBITS(pglyphBase, pci);
+	gWidth = GLYPHWIDTHPIXELS(pci);
+	gHeight = GLYPHHEIGHTPIXELS(pci);
+	if (gWidth && gHeight)
+	{
+	    nbyGlyphWidth = GLYPHWIDTHBYTESPADDED(pci);
+	    nbyPadGlyph = BitmapBytePad(gWidth);
+
+	    if (nbyGlyphWidth == nbyPadGlyph
+#if GLYPHPADBYTES != 4
+	        && (((int) pglyph) & 3) == 0
+#endif
+		)
+	    {
+		pb = pglyph;
+	    }
+	    else
+	    {
+		for (i=0, pb = pbits; i<gHeight; i++, pb = pbits+(i*nbyPadGlyph))
+		    for (j = 0; j < nbyGlyphWidth; j++)
+			*pb++ = *pglyph++;
+		pb = pbits;
+	    }
+
+	    if ((pGCtmp->serialNumber) != (pPixmap->drawable.serialNumber))
+		ValidateGC((DrawablePtr)pPixmap, pGCtmp);
+	    (*pGCtmp->ops->PutImage)((DrawablePtr)pPixmap, pGCtmp,
+				pPixmap->drawable.depth,
+				0, 0, gWidth, gHeight, 
+				0, XYBitmap, (char *)pb);
+
+	    if ((pGC->serialNumber) != (pDrawable->serialNumber))
+		ValidateGC(pDrawable, pGC);
+	    (*pGC->ops->PushPixels)(pGC, pPixmap, pDrawable,
+			       gWidth, gHeight,
+			       x + pci->metrics.leftSideBearing,
+			       y - pci->metrics.ascent);
+	}
+	x += pci->metrics.characterWidth;
+    }
+    (*pDrawable->pScreen->DestroyPixmap)(pPixmap);
+    DEALLOCATE_LOCAL(pbits);
+    FreeScratchGC(pGCtmp);
+}
+
+
+void
+miImageGlyphBlt(pDrawable, pGC, x, y, nglyph, ppci, pglyphBase)
+    DrawablePtr pDrawable;
+    GC 		*pGC;
+    int 	x, y;
+    unsigned int nglyph;
+    CharInfoPtr *ppci;		/* array of character info */
+    unsigned char *pglyphBase;	/* start of array of glyphs */
+{
+    ExtentInfoRec info;		/* used by QueryGlyphExtents() */
+    XID gcvals[3];
+    int oldAlu, oldFS;
+    unsigned long	oldFG;
+    xRectangle backrect;
+
+    QueryGlyphExtents(pGC->font, ppci, (unsigned long)nglyph, &info);
+
+    if (info.overallWidth >= 0)
+    {
+    	backrect.x = x;
+    	backrect.width = info.overallWidth;
+    }
+    else
+    {
+	backrect.x = x + info.overallWidth;
+	backrect.width = -info.overallWidth;
+    }
+    backrect.y = y - FONTASCENT(pGC->font);
+    backrect.height = FONTASCENT(pGC->font) + FONTDESCENT(pGC->font);
+
+    oldAlu = pGC->alu;
+    oldFG = pGC->fgPixel;
+    oldFS = pGC->fillStyle;
+
+    /* fill in the background */
+    gcvals[0] = GXcopy;
+    gcvals[1] = pGC->bgPixel;
+    gcvals[2] = FillSolid;
+    DoChangeGC(pGC, GCFunction|GCForeground|GCFillStyle, gcvals, 0);
+    ValidateGC(pDrawable, pGC);
+    (*pGC->ops->PolyFillRect)(pDrawable, pGC, 1, &backrect);
+
+    /* put down the glyphs */
+    gcvals[0] = oldFG;
+    DoChangeGC(pGC, GCForeground, gcvals, 0);
+    ValidateGC(pDrawable, pGC);
+    (*pGC->ops->PolyGlyphBlt)(pDrawable, pGC, x, y, nglyph, ppci,
+			      (char *)pglyphBase);
+
+    /* put all the toys away when done playing */
+    gcvals[0] = oldAlu;
+    gcvals[1] = oldFG;
+    gcvals[2] = oldFS;
+    DoChangeGC(pGC, GCFunction|GCForeground|GCFillStyle, gcvals, 0);
+
+}