X-Git-Url: https://git.sesse.net/?p=rdpsrv;a=blobdiff_plain;f=Xserver%2Fprograms%2FXserver%2Fcfb%2Fcfbteblt8.c;fp=Xserver%2Fprograms%2FXserver%2Fcfb%2Fcfbteblt8.c;h=b30a8216660bfcbe6a51120437db600cc8db86c6;hp=0000000000000000000000000000000000000000;hb=b6e6afccf37f4ad0515ef2a698f714fdf1bf23b3;hpb=e3340a110a3b01756b8e67531395a33b40a17d37

diff --git a/Xserver/programs/Xserver/cfb/cfbteblt8.c b/Xserver/programs/Xserver/cfb/cfbteblt8.c
new file mode 100644
index 0000000..b30a821
--- /dev/null
+++ b/Xserver/programs/Xserver/cfb/cfbteblt8.c
@@ -0,0 +1,584 @@
+/*
+ * TEGblt - ImageText expanded glyph fonts only.  For
+ * 8 bit displays, in Copy mode with no clipping.
+ */
+
+/*
+
+Copyright (c) 1989  X Consortium
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+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
+X CONSORTIUM 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 X Consortium 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 X Consortium.
+*/
+
+/* $XConsortium: cfbteblt8.c,v 5.24 94/09/29 15:26:00 dpw Exp $ */
+
+#if PSZ == 8
+
+#include	"X.h"
+#include	"Xmd.h"
+#include	"Xproto.h"
+#include	"cfb.h"
+#include	"fontstruct.h"
+#include	"dixfontstr.h"
+#include	"gcstruct.h"
+#include	"windowstr.h"
+#include	"scrnintstr.h"
+#include	"pixmapstr.h"
+#include	"regionstr.h"
+#include	"cfbmskbits.h"
+#include	"cfb8bit.h"
+
+/*
+ * this code supports up to 5 characters at a time.  The performance
+ * differences between 4 and 5 is usually small (~7% on PMAX) and
+ * frequently negative (SPARC and Sun3), so this file is compiled
+ * only once for now.  If you want to use the other options, you'll
+ * need to hack cfbgc.c as well.
+ */
+
+#ifndef NGLYPHS
+#define NGLYPHS 4
+#define DO_COMMON
+#endif
+
+#ifdef DO_COMMON
+#define CFBTEGBLT8 cfbTEGlyphBlt8
+#endif
+
+/*
+ * On little-endian machines (or where fonts are padded to 32-bit
+ * boundaries) we can use some magic to avoid the expense of getleftbits
+ */
+
+#if ((BITMAP_BIT_ORDER == LSBFirst && NGLYPHS >= 4) || GLYPHPADBYTES == 4)
+
+#if GLYPHPADBYTES == 1
+typedef unsigned char	*glyphPointer;
+#define USE_LEFTBITS
+#endif
+
+#if GLYPHPADBYTES == 2
+typedef unsigned short	*glyphPointer;
+#define USE_LEFTBITS
+#endif
+
+#if GLYPHPADBYTES == 4
+typedef unsigned int	*glyphPointer;
+#endif
+
+#define GetBitsL       c = BitLeft (*leftChar++, lshift)
+#define NGetBits1S(r)   c = BitRight(*char1++ r, xoff1)
+#define NGetBits1L(r)   GetBitsL | BitRight(*char1++ r, xoff1)
+#define NGetBits1U(r)   c = *char1++ r
+#define NGetBits2S(r)   NGetBits1S(| BitRight(*char2++ r, widthGlyph))
+#define NGetBits2L(r)   NGetBits1L(| BitRight(*char2++ r, widthGlyph))
+#define NGetBits2U(r)   NGetBits1U(| BitRight(*char2++ r, widthGlyph))
+#define NGetBits3S(r)   NGetBits2S(| BitRight(*char3++ r, widthGlyph))
+#define NGetBits3L(r)   NGetBits2L(| BitRight(*char3++ r, widthGlyph))
+#define NGetBits3U(r)   NGetBits2U(| BitRight(*char3++ r, widthGlyph))
+#define NGetBits4S(r)   NGetBits3S(| BitRight(*char4++ r, widthGlyph))
+#define NGetBits4L(r)   NGetBits3L(| BitRight(*char4++ r, widthGlyph))
+#define NGetBits4U(r)   NGetBits3U(| BitRight(*char4++ r, widthGlyph))
+#define NGetBits5S(r)   NGetBits4S(| BitRight(*char5++ r, widthGlyph))
+#define NGetBits5L(r)   NGetBits4L(| BitRight(*char5++ r, widthGlyph))
+#define NGetBits5U(r)   NGetBits4U(| BitRight(*char5++ r, widthGlyph))
+#define GetBits1S   c = BitRight(*char1++, xoff1)
+#define GetBits1L   GetBitsL | BitRight(*char1++, xoff1)
+#define GetBits1U   c = *char1++
+#define GetBits2S   NGetBits1S(| BitRight(*char2++, widthGlyph))
+#define GetBits2L   NGetBits1L(| BitRight(*char2++, widthGlyph))
+#define GetBits2U   NGetBits1U(| BitRight(*char2++, widthGlyph))
+#define GetBits3S   NGetBits2S(| BitRight(*char3++, widthGlyph))
+#define GetBits3L   NGetBits2L(| BitRight(*char3++, widthGlyph))
+#define GetBits3U   NGetBits2U(| BitRight(*char3++, widthGlyph))
+#define GetBits4S   NGetBits3S(| BitRight(*char4++, widthGlyph))
+#define GetBits4L   NGetBits3L(| BitRight(*char4++, widthGlyph))
+#define GetBits4U   NGetBits3U(| BitRight(*char4++, widthGlyph))
+#define GetBits5S   NGetBits4S(| BitRight(*char5++, widthGlyph))
+#define GetBits5L   NGetBits4L(| BitRight(*char5++, widthGlyph))
+#define GetBits5U   NGetBits4U(| BitRight(*char5++, widthGlyph))
+
+#else
+
+typedef unsigned int	*glyphPointer;
+
+#define USE_LEFTBITS
+#define ALL_LEFTBITS
+
+#define GetBitsL    WGetBitsL
+#define GetBits1S   WGetBits1S
+#define GetBits1L   WGetBits1L
+#define GetBits1U   WGetBits1U
+
+#define GetBits2S   GetBits1S Get1Bits (char2, tmpSrc) \
+		    c |= BitRight(tmpSrc, xoff2);
+#define GetBits2L   GetBits1L Get1Bits (char2, tmpSrc) \
+		    c |= BitRight(tmpSrc, xoff2);
+#define GetBits2U   GetBits1U Get1Bits (char2, tmpSrc) \
+		    c |= BitRight(tmpSrc, xoff2);
+
+#define GetBits3S   GetBits2S Get1Bits (char3, tmpSrc) \
+		    c |= BitRight(tmpSrc, xoff3);
+#define GetBits3L   GetBits2L Get1Bits (char3, tmpSrc) \
+		    c |= BitRight(tmpSrc, xoff3);
+#define GetBits3U   GetBits2U Get1Bits (char3, tmpSrc) \
+		    c |= BitRight(tmpSrc, xoff3);
+
+#define GetBits4S   GetBits3S Get1Bits (char4, tmpSrc) \
+		    c |= BitRight(tmpSrc, xoff4);
+#define GetBits4L   GetBits3L Get1Bits (char4, tmpSrc) \
+		    c |= BitRight(tmpSrc, xoff4);
+#define GetBits4U   GetBits3U Get1Bits (char4, tmpSrc) \
+		    c |= BitRight(tmpSrc, xoff4);
+
+#define GetBits5S   GetBits4S Get1Bits (char5, tmpSrc) \
+		    c |= BitRight(tmpSrc, xoff5);
+#define GetBits5L   GetBits4L Get1Bits (char5, tmpSrc) \
+		    c |= BitRight(tmpSrc, xoff5);
+#define GetBits5U   GetBits4U Get1Bits (char5, tmpSrc) \
+		    c |= BitRight(tmpSrc, xoff5);
+
+#endif
+
+#ifdef USE_LEFTBITS
+extern unsigned long endtab[];
+
+#define IncChar(c)  (c = (glyphPointer) (((char *) c) + glyphBytes))
+
+#define Get1Bits(ch,dst)    glyphbits (ch, widthGlyph, glyphMask, dst); \
+			    IncChar (ch);
+
+#define glyphbits(bits,width,mask,dst)	getleftbits(bits,width,dst); \
+					dst &= mask;
+
+#define WGetBitsL   Get1Bits(leftChar,c); \
+		    c = BitLeft (c, lshift);
+#define WGetBits1S  Get1Bits (char1, c) \
+		    c = BitRight (c, xoff1);
+#define WGetBits1L  WGetBitsL Get1Bits (char1, tmpSrc) \
+		    c |= BitRight (tmpSrc, xoff1);
+#define WGetBits1U  Get1Bits (char1, c)
+
+#else
+#define WGetBitsL   GetBitsL
+#define WGetBits1S  GetBits1S
+#define WGetBits1L  GetBits1L
+#define WGetBits1U  GetBits1U
+#endif
+
+#if NGLYPHS == 2
+# define GetBitsNS GetBits2S
+# define GetBitsNL GetBits2L
+# define GetBitsNU GetBits2U
+# define LastChar char2
+#ifndef CFBTEGBLT8
+# define CFBTEGBLT8 cfbTEGlyphBlt8x2
+#endif
+#endif
+#if NGLYPHS == 3
+# define GetBitsNS GetBits3S
+# define GetBitsNL GetBits3L
+# define GetBitsNU GetBits3U
+# define LastChar char3
+#ifndef CFBTEGBLT8
+# define CFBTEGBLT8 cfbTEGlyphBlt8x3
+#endif
+#endif
+#if NGLYPHS == 4
+# define GetBitsNS GetBits4S
+# define GetBitsNL GetBits4L
+# define GetBitsNU GetBits4U
+# define LastChar char4
+#ifndef CFBTEGBLT8
+# define CFBTEGBLT8 cfbTEGlyphBlt8x4
+#endif
+#endif
+#if NGLYPHS == 5
+# define GetBitsNS GetBits5S
+# define GetBitsNL GetBits5L
+# define GetBitsNU GetBits5U
+# define LastChar char5
+#ifndef CFBTEGBLT8
+# define CFBTEGBLT8 cfbTEGlyphBlt8x5
+#endif
+#endif
+
+/* another ugly giant macro */
+#define SwitchEm    switch (ew) \
+		    { \
+		    case 0: \
+		    	break; \
+		    case 1: \
+		    	while (hTmp--) { \
+			    GetBits; \
+			    StoreBits0 \
+			    Loop \
+		    	} \
+		    	break; \
+		    case 2: \
+		    	while (hTmp--) { \
+			    GetBits; \
+			    StoreBits0 FirstStep StoreBits(1) \
+			    Loop \
+		    	} \
+		    	break; \
+		    case 3: \
+		    	while (hTmp--) { \
+			    GetBits; \
+			    StoreBits0 FirstStep StoreBits(1) Step StoreBits(2) \
+			    Loop \
+		    	} \
+		    	break; \
+		    case 4: \
+		    	while (hTmp--) { \
+			    GetBits; \
+			    StoreBits0 FirstStep StoreBits(1) Step \
+			    StoreBits(2) Step StoreBits(3) \
+			    Loop \
+		    	} \
+		    	break; \
+		    case 5: \
+		    	while (hTmp--) { \
+			    GetBits; \
+			    StoreBits0 FirstStep StoreBits(1) Step \
+			    StoreBits(2) Step StoreBits(3) Step \
+			    StoreBits(4) \
+			    Loop \
+		    	} \
+		    	break; \
+		    case 6: \
+		    	while (hTmp--) { \
+			    GetBits; \
+			    StoreBits0 FirstStep StoreBits(1) Step \
+ 			    StoreBits(2) Step StoreBits(3) Step \
+			    StoreBits(4) Step StoreBits(5) \
+			    Loop \
+		    	} \
+		    	break; \
+		    case 7: \
+		    	while (hTmp--) { \
+			    GetBits; \
+			    StoreBits0 FirstStep StoreBits(1) Step \
+			    StoreBits(2) Step StoreBits(3) Step \
+			    StoreBits(4) Step StoreBits(5) Step \
+			    StoreBits(6) \
+			    Loop \
+		    	} \
+		    	break; \
+		    case 8: \
+		    	while (hTmp--) { \
+			    GetBits; \
+			    StoreBits0 FirstStep StoreBits(1) Step \
+			    StoreBits(2) Step StoreBits(3) Step \
+			    StoreBits(4) Step StoreBits(5) Step \
+			    StoreBits(6) Step StoreBits(7) \
+			    Loop \
+		    	} \
+		    	break; \
+		    }
+
+#ifdef FAST_CONSTANT_OFFSET_MODE
+#define StorePixels(o,p)    dst[o] = p
+#define Loop		    dst += widthDst;
+#else
+#define StorePixels(o,p)    *dst++ = (p)
+#define Loop		    dst += widthLeft;
+#endif
+
+#define Step		    NextBitGroup(c);
+
+#if (BITMAP_BIT_ORDER == MSBFirst)
+#define StoreBits(o)	StorePixels(o,GetPixelGroup(c));
+#define FirstStep	Step
+#else
+#if PGSZ == 64
+#define StoreBits(o)	StorePixels(o,cfb8Pixels[(c) & PGSZBMSK]);
+#define FirstStep	Step
+#else /* PGSZ == 32 */
+#define StoreBits(o)	StorePixels(o,*((unsigned long *) (((char *) cfb8Pixels) + (c & 0x3c))));
+#define FirstStep	c = BitLeft (c, 2);
+#endif /* PGSZ */
+#endif /* BITMAP_BIT_ORDER */
+
+
+void
+CFBTEGBLT8 (pDrawable, pGC, xInit, yInit, nglyph, ppci, pglyphBase)
+    DrawablePtr pDrawable;
+    GC 		*pGC;
+    int 	xInit, yInit;
+    unsigned int nglyph;
+    CharInfoPtr *ppci;		/* array of character info */
+    pointer	pglyphBase;	/* start of array of glyphs */
+{
+    register unsigned long  c;
+    register unsigned long  *dst;
+    register unsigned long  leftMask, rightMask;
+    register int	    hTmp;
+    register int	    xoff1;
+    register glyphPointer   char1;
+    register glyphPointer   char2;
+#if NGLYPHS >= 3
+    register glyphPointer   char3;
+#endif
+#if NGLYPHS >= 4
+    register glyphPointer   char4;
+#endif
+#if NGLYPHS >= 5
+    register glyphPointer   char5;
+#endif
+#ifdef ALL_LEFTBITS
+    int xoff2, xoff3, xoff4, xoff5;
+#endif
+
+    FontPtr		pfont = pGC->font;
+    unsigned long	*dstLine;
+    glyphPointer	oldRightChar;
+    unsigned long	*pdstBase;
+    glyphPointer	leftChar;
+    int			widthDst, widthLeft;
+    int			widthGlyph;
+    int			h;
+    int			ew;
+    int			x, y;
+    BoxRec		bbox;		/* for clipping */
+    int			lshift;
+    int			widthGlyphs;
+#ifdef USE_LEFTBITS
+    register unsigned long  glyphMask;
+    register unsigned long  tmpSrc;
+    register int	    glyphBytes;
+#endif
+
+    widthGlyph = FONTMAXBOUNDS(pfont,characterWidth);
+    h = FONTASCENT(pfont) + FONTDESCENT(pfont);
+    if (!h)
+	return;
+    x = xInit + FONTMAXBOUNDS(pfont,leftSideBearing) + pDrawable->x;
+    y = yInit - FONTASCENT(pfont) + pDrawable->y;
+    bbox.x1 = x;
+    bbox.x2 = x + (widthGlyph * nglyph);
+    bbox.y1 = y;
+    bbox.y2 = y + h;
+
+    switch (RECT_IN_REGION(pGC->pScreen,  cfbGetCompositeClip(pGC), &bbox))
+    {
+      case rgnPART:
+	cfbImageGlyphBlt8(pDrawable, pGC, xInit, yInit, nglyph, ppci, pglyphBase);
+      case rgnOUT:
+	return;
+    }
+
+    if (!cfb8CheckPixels (pGC->fgPixel, pGC->bgPixel))
+	cfb8SetPixels (pGC->fgPixel, pGC->bgPixel);
+
+    leftChar = 0;
+
+    cfbGetLongWidthAndPointer(pDrawable, widthDst, pdstBase)
+
+#if NGLYPHS == 2
+    widthGlyphs = widthGlyph << 1;
+#else
+#if NGLYPHS == 4
+    widthGlyphs = widthGlyph << 2;
+#else
+    widthGlyphs = widthGlyph * NGLYPHS;
+#endif
+#endif
+
+#ifdef USE_LEFTBITS
+    glyphMask = endtab[widthGlyph];
+    glyphBytes = GLYPHWIDTHBYTESPADDED(*ppci);
+#endif
+
+    pdstBase += y * widthDst;
+#ifdef DO_COMMON
+    if (widthGlyphs <= 32)
+#endif
+    	while (nglyph >= NGLYPHS)
+    	{
+	    nglyph -= NGLYPHS;
+	    hTmp = h;
+	    dstLine = pdstBase + (x >> PWSH);
+	    xoff1 = x & PIM;
+	    char1 = (glyphPointer) FONTGLYPHBITS(pglyphBase, *ppci++);
+	    char2 = (glyphPointer) FONTGLYPHBITS(pglyphBase, *ppci++);
+#ifdef ALL_LEFTBITS
+	    xoff2 = xoff1 + widthGlyph;
+#endif
+#if NGLYPHS >= 3
+	    char3 = (glyphPointer) FONTGLYPHBITS(pglyphBase, *ppci++);
+#ifdef ALL_LEFTBITS
+	    xoff3 = xoff2 + widthGlyph;
+#endif
+#endif
+#if NGLYPHS >= 4
+	    char4 = (glyphPointer) FONTGLYPHBITS(pglyphBase, *ppci++);
+#ifdef ALL_LEFTBITS
+	    xoff4 = xoff3 + widthGlyph;
+#endif
+#endif
+#if NGLYPHS >= 5
+	    char5 = (glyphPointer) FONTGLYPHBITS(pglyphBase, *ppci++);
+#ifdef ALL_LEFTBITS
+	    xoff5 = xoff4 + widthGlyph;
+#endif
+#endif
+	    oldRightChar = LastChar;
+	    dst = dstLine;
+	    if (xoff1)
+	    {
+		ew = ((widthGlyphs - (PGSZB - xoff1)) >> PWSH) + 1;
+#ifndef FAST_CONSTANT_OFFSET_MODE
+		widthLeft = widthDst - ew;
+#endif
+	    	if (!leftChar)
+	    	{
+		    leftMask = cfbendtab[xoff1];
+		    rightMask = cfbstarttab[xoff1];
+
+#define StoreBits0	StorePixels (0,dst[0] & leftMask | \
+				       GetPixelGroup(c) & rightMask);
+#define GetBits GetBitsNS
+
+		    SwitchEm
+
+#undef GetBits
+#undef StoreBits0
+
+	    	}
+	    	else
+	    	{
+		    lshift = widthGlyph - xoff1;
+    
+#define StoreBits0  StorePixels (0,GetPixelGroup(c));
+#define GetBits GetBitsNL
+    
+		    SwitchEm
+    
+#undef GetBits
+#undef StoreBits0
+    
+	    	}
+	    }
+	    else
+	    {
+#if NGLYPHS == 4 && PGSZ == 32
+	    	ew = widthGlyph;    /* widthGlyphs >> 2 */
+#else
+	    	ew = widthGlyphs >> PWSH;
+#endif
+#ifndef FAST_CONSTANT_OFFSET_MODE
+		widthLeft = widthDst - ew;
+#endif
+
+#define StoreBits0  StorePixels (0,GetPixelGroup(c));
+#define GetBits	GetBitsNU
+
+	    	SwitchEm
+
+#undef GetBits
+#undef StoreBits0
+
+	    }
+	    x += widthGlyphs;
+	    leftChar = oldRightChar;
+    	}
+    while (nglyph--)
+    {
+	xoff1 = x & PIM;
+	char1 = (glyphPointer) FONTGLYPHBITS(pglyphBase, *ppci++);
+	hTmp = h;
+	dstLine = pdstBase + (x >> PWSH);
+	oldRightChar = char1;
+	dst = dstLine;
+	if (xoff1)
+	{
+	    ew = ((widthGlyph - (PGSZB - xoff1)) >> PWSH) + 1;
+#ifndef FAST_CONSTANT_OFFSET_MODE
+	    widthLeft = widthDst - ew;
+#endif
+	    if (!leftChar)
+	    {
+		leftMask = cfbendtab[xoff1];
+		rightMask = cfbstarttab[xoff1];
+
+#define StoreBits0	StorePixels (0,dst[0] & leftMask | GetPixelGroup(c) & rightMask);
+#define GetBits	WGetBits1S
+
+		SwitchEm
+#undef GetBits
+#undef StoreBits0
+
+	    }
+	    else
+	    {
+		lshift = widthGlyph - xoff1;
+
+#define StoreBits0  StorePixels (0,GetPixelGroup(c));
+#define GetBits WGetBits1L
+
+		SwitchEm
+#undef GetBits
+#undef StoreBits0
+
+	    }
+	}
+	else
+	{
+	    ew = widthGlyph >> PWSH;
+
+#ifndef FAST_CONSTANT_OFFSET_MODE
+	    widthLeft = widthDst - ew;
+#endif
+
+#define StoreBits0  StorePixels (0,GetPixelGroup(c));
+#define GetBits	WGetBits1U
+
+	    SwitchEm
+
+#undef GetBits
+#undef StoreBits0
+
+	}
+	x += widthGlyph;
+	leftChar = oldRightChar;
+    }
+    /*
+     * draw the tail of the last character
+     */
+    xoff1 = x & PIM;
+    if (xoff1)
+    {
+	rightMask = cfbstarttab[xoff1];
+	leftMask = cfbendtab[xoff1];
+	lshift = widthGlyph - xoff1;
+	dst = pdstBase + (x >> PWSH);
+	hTmp = h;
+	while (hTmp--)
+	{
+	    GetBitsL;
+	    *dst = (*dst & rightMask) | (GetPixelGroup(c) & leftMask);
+	    dst += widthDst;
+	}
+    }
+}
+#endif /* PSZ == 8 */