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/* $XFree86: xc/programs/Xserver/cfb/cfbgc.c,v 1.5 2001/01/17 22:36:35 dawes Exp $ */
/***********************************************************
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: cfbgc.c,v 1.4 2001/02/09 02:04:37 xorgcvs Exp $ */
#ifdef HAVE_DIX_CONFIG_H
#include <dix-config.h>
#endif
#include <stdlib.h>
#include <X11/X.h>
#include <X11/Xmd.h>
#include <X11/Xproto.h>
#include "cfb.h"
#include <X11/fonts/fontstruct.h>
#include "dixfontstr.h"
#include "gcstruct.h"
#include "windowstr.h"
#include "pixmapstr.h"
#include "scrnintstr.h"
#include "region.h"
#include "mistruct.h"
#include "mibstore.h"
#include "migc.h"
#include "cfbmskbits.h"
#include "cfb8bit.h"
#if PSZ == 8
# define useTEGlyphBlt cfbTEGlyphBlt8
#else
# ifdef WriteBitGroup
# define useTEGlyphBlt cfbImageGlyphBlt8
# else
# define useTEGlyphBlt cfbTEGlyphBlt
# endif
#endif
#ifdef WriteBitGroup
# define useImageGlyphBlt cfbImageGlyphBlt8
# define usePolyGlyphBlt cfbPolyGlyphBlt8
#else
# define useImageGlyphBlt miImageGlyphBlt
# define usePolyGlyphBlt miPolyGlyphBlt
#endif
static void cfbUnPushPixels (GCPtr, PixmapPtr, DrawablePtr, int, int, int, int);
#ifdef FOUR_BIT_CODE
# define usePushPixels cfbPushPixels8
#else
# define usePushPixels cfbUnPushPixels
#endif
#ifdef PIXEL_ADDR
# define ZeroPolyArc cfbZeroPolyArcSS8Copy
#else
# define ZeroPolyArc miZeroPolyArc
#endif
GCFuncs cfbGCFuncs = {
cfbValidateGC,
miChangeGC,
miCopyGC,
miDestroyGC,
miChangeClip,
miDestroyClip,
miCopyClip,
};
GCOps cfbTEOps1Rect = {
cfbSolidSpansCopy,
cfbSetSpans,
cfbPutImage,
cfbCopyArea,
cfbCopyPlane,
cfbPolyPoint,
#ifdef PIXEL_ADDR
cfb8LineSS1Rect,
cfb8SegmentSS1Rect,
#else
cfbLineSS,
cfbSegmentSS,
#endif
miPolyRectangle,
ZeroPolyArc,
cfbFillPoly1RectCopy,
cfbPolyFillRect,
cfbPolyFillArcSolidCopy,
miPolyText8,
miPolyText16,
miImageText8,
miImageText16,
useTEGlyphBlt,
usePolyGlyphBlt,
usePushPixels
};
GCOps cfbNonTEOps1Rect = {
cfbSolidSpansCopy,
cfbSetSpans,
cfbPutImage,
cfbCopyArea,
cfbCopyPlane,
cfbPolyPoint,
#ifdef PIXEL_ADDR
cfb8LineSS1Rect,
cfb8SegmentSS1Rect,
#else
cfbLineSS,
cfbSegmentSS,
#endif
miPolyRectangle,
ZeroPolyArc,
cfbFillPoly1RectCopy,
cfbPolyFillRect,
cfbPolyFillArcSolidCopy,
miPolyText8,
miPolyText16,
miImageText8,
miImageText16,
useImageGlyphBlt,
usePolyGlyphBlt,
usePushPixels
};
GCOps cfbTEOps = {
cfbSolidSpansCopy,
cfbSetSpans,
cfbPutImage,
cfbCopyArea,
cfbCopyPlane,
cfbPolyPoint,
cfbLineSS,
cfbSegmentSS,
miPolyRectangle,
ZeroPolyArc,
miFillPolygon,
cfbPolyFillRect,
cfbPolyFillArcSolidCopy,
miPolyText8,
miPolyText16,
miImageText8,
miImageText16,
useTEGlyphBlt,
usePolyGlyphBlt,
usePushPixels
};
GCOps cfbNonTEOps = {
cfbSolidSpansCopy,
cfbSetSpans,
cfbPutImage,
cfbCopyArea,
cfbCopyPlane,
cfbPolyPoint,
cfbLineSS,
cfbSegmentSS,
miPolyRectangle,
#ifdef PIXEL_ADDR
cfbZeroPolyArcSS8Copy,
#else
miZeroPolyArc,
#endif
miFillPolygon,
cfbPolyFillRect,
cfbPolyFillArcSolidCopy,
miPolyText8,
miPolyText16,
miImageText8,
miImageText16,
useImageGlyphBlt,
usePolyGlyphBlt,
usePushPixels
};
GCOps *
cfbMatchCommon (pGC, devPriv)
GCPtr pGC;
cfbPrivGCPtr devPriv;
{
if (pGC->lineWidth != 0)
return 0;
if (pGC->lineStyle != LineSolid)
return 0;
if (pGC->fillStyle != FillSolid)
return 0;
if (devPriv->rop != GXcopy)
return 0;
if (pGC->font &&
FONTMAXBOUNDS(pGC->font,rightSideBearing) -
FONTMINBOUNDS(pGC->font,leftSideBearing) <= 32 &&
FONTMINBOUNDS(pGC->font,characterWidth) >= 0)
{
if (TERMINALFONT(pGC->font)
#ifdef FOUR_BIT_CODE
&& FONTMAXBOUNDS(pGC->font,characterWidth) >= PGSZB
#endif
)
#ifdef NO_ONE_RECT
return &cfbTEOps1Rect;
#else
if (devPriv->oneRect)
return &cfbTEOps1Rect;
else
return &cfbTEOps;
#endif
else
#ifdef NO_ONE_RECT
return &cfbNonTEOps1Rect;
#else
if (devPriv->oneRect)
return &cfbNonTEOps1Rect;
else
return &cfbNonTEOps;
#endif
}
return 0;
}
Bool
cfbCreateGC(pGC)
register GCPtr pGC;
{
cfbPrivGC *pPriv;
if (PixmapWidthPaddingInfo[pGC->depth].padPixelsLog2 == LOG2_BITMAP_PAD)
return (mfbCreateGC(pGC));
pGC->clientClip = NULL;
pGC->clientClipType = CT_NONE;
if (cfbNonTEOps.PushPixels == cfbUnPushPixels)
{
cfbTEOps1Rect.PushPixels = mfbPushPixelsWeak();
cfbNonTEOps1Rect.PushPixels = mfbPushPixelsWeak();
cfbTEOps.PushPixels = mfbPushPixelsWeak();
cfbNonTEOps.PushPixels = mfbPushPixelsWeak();
}
/*
* some of the output primitives aren't really necessary, since they
* will be filled in ValidateGC because of dix/CreateGC() setting all
* the change bits. Others are necessary because although they depend
* on being a color frame buffer, they don't change
*/
pGC->ops = &cfbNonTEOps;
pGC->funcs = &cfbGCFuncs;
/* cfb wants to translate before scan conversion */
pGC->miTranslate = 1;
pPriv = cfbGetGCPrivate(pGC);
pPriv->rop = pGC->alu;
pPriv->oneRect = FALSE;
pGC->fExpose = TRUE;
pGC->freeCompClip = FALSE;
pGC->pRotatedPixmap = (PixmapPtr) NULL;
return TRUE;
}
/* Clipping conventions
if the drawable is a window
CT_REGION ==> pCompositeClip really is the composite
CT_other ==> pCompositeClip is the window clip region
if the drawable is a pixmap
CT_REGION ==> pCompositeClip is the translated client region
clipped to the pixmap boundary
CT_other ==> pCompositeClip is the pixmap bounding box
*/
void
cfbValidateGC(pGC, changes, pDrawable)
register GCPtr pGC;
unsigned long changes;
DrawablePtr pDrawable;
{
int mask; /* stateChanges */
int index; /* used for stepping through bitfields */
int new_rrop;
int new_line, new_text, new_fillspans, new_fillarea;
int new_rotate;
int xrot, yrot;
/* flags for changing the proc vector */
cfbPrivGCPtr devPriv;
int oneRect;
new_rotate = pGC->lastWinOrg.x != pDrawable->x ||
pGC->lastWinOrg.y != pDrawable->y;
pGC->lastWinOrg.x = pDrawable->x;
pGC->lastWinOrg.y = pDrawable->y;
devPriv = cfbGetGCPrivate(pGC);
new_rrop = FALSE;
new_line = FALSE;
new_text = FALSE;
new_fillspans = FALSE;
new_fillarea = FALSE;
/*
* if the client clip is different or moved OR the subwindowMode has
* changed OR the window's clip has changed since the last validation
* we need to recompute the composite clip
*/
if ((changes & (GCClipXOrigin|GCClipYOrigin|GCClipMask|GCSubwindowMode)) ||
(pDrawable->serialNumber != (pGC->serialNumber & DRAWABLE_SERIAL_BITS))
)
{
miComputeCompositeClip (pGC, pDrawable);
#ifdef NO_ONE_RECT
devPriv->oneRect = FALSE;
#else
oneRect = REGION_NUM_RECTS(pGC->pCompositeClip) == 1;
if (oneRect != devPriv->oneRect)
new_line = TRUE;
devPriv->oneRect = oneRect;
#endif
}
mask = changes;
while (mask) {
index = lowbit (mask);
mask &= ~index;
/*
* this switch acculmulates a list of which procedures might have
* to change due to changes in the GC. in some cases (e.g.
* changing one 16 bit tile for another) we might not really need
* a change, but the code is being paranoid. this sort of batching
* wins if, for example, the alu and the font have been changed,
* or any other pair of items that both change the same thing.
*/
switch (index) {
case GCFunction:
case GCForeground:
new_rrop = TRUE;
break;
case GCPlaneMask:
new_rrop = TRUE;
new_text = TRUE;
break;
case GCBackground:
break;
case GCLineStyle:
case GCLineWidth:
new_line = TRUE;
break;
case GCJoinStyle:
case GCCapStyle:
break;
case GCFillStyle:
new_text = TRUE;
new_fillspans = TRUE;
new_line = TRUE;
new_fillarea = TRUE;
break;
case GCFillRule:
break;
case GCTile:
new_fillspans = TRUE;
new_fillarea = TRUE;
break;
case GCStipple:
if (pGC->stipple)
{
int width = pGC->stipple->drawable.width;
PixmapPtr nstipple;
if ((width <= PGSZ) && !(width & (width - 1)) &&
(nstipple = cfbCopyPixmap(pGC->stipple)))
{
cfbPadPixmap(nstipple);
(*pGC->pScreen->DestroyPixmap)(pGC->stipple);
pGC->stipple = nstipple;
}
}
new_fillspans = TRUE;
new_fillarea = TRUE;
break;
case GCTileStipXOrigin:
new_rotate = TRUE;
break;
case GCTileStipYOrigin:
new_rotate = TRUE;
break;
case GCFont:
new_text = TRUE;
break;
case GCSubwindowMode:
break;
case GCGraphicsExposures:
break;
case GCClipXOrigin:
break;
case GCClipYOrigin:
break;
case GCClipMask:
break;
case GCDashOffset:
break;
case GCDashList:
break;
case GCArcMode:
break;
default:
break;
}
}
/*
* If the drawable has changed, ensure suitable
* entries are in the proc vector.
*/
if (pDrawable->serialNumber != (pGC->serialNumber & (DRAWABLE_SERIAL_BITS))) {
new_fillspans = TRUE; /* deal with FillSpans later */
}
if (new_rotate || new_fillspans)
{
Bool new_pix = FALSE;
xrot = pGC->patOrg.x + pDrawable->x;
yrot = pGC->patOrg.y + pDrawable->y;
switch (pGC->fillStyle)
{
case FillTiled:
if (!pGC->tileIsPixel)
{
int width = pGC->tile.pixmap->drawable.width * PSZ;
if ((width <= PGSZ) && !(width & (width - 1)))
{
cfbCopyRotatePixmap(pGC->tile.pixmap, &pGC->pRotatedPixmap,
xrot, yrot);
new_pix = TRUE;
}
}
break;
#ifdef FOUR_BIT_CODE
case FillStippled:
case FillOpaqueStippled:
{
int width = pGC->stipple->drawable.width;
if ((width <= PGSZ) && !(width & (width - 1)))
{
mfbCopyRotatePixmap(pGC->stipple, &pGC->pRotatedPixmap,
xrot, yrot);
new_pix = TRUE;
}
}
break;
#endif
}
if (!new_pix && pGC->pRotatedPixmap)
{
(*pGC->pScreen->DestroyPixmap)(pGC->pRotatedPixmap);
pGC->pRotatedPixmap = (PixmapPtr) NULL;
}
}
if (new_rrop)
{
int old_rrop;
old_rrop = devPriv->rop;
devPriv->rop = cfbReduceRasterOp (pGC->alu, pGC->fgPixel,
pGC->planemask,
&devPriv->and, &devPriv->xor);
if (old_rrop == devPriv->rop)
new_rrop = FALSE;
else
{
#ifdef PIXEL_ADDR
new_line = TRUE;
#endif
#ifdef WriteBitGroup
new_text = TRUE;
#endif
new_fillspans = TRUE;
new_fillarea = TRUE;
}
}
if (new_rrop || new_fillspans || new_text || new_fillarea || new_line)
{
GCOps *newops;
if ((newops = cfbMatchCommon (pGC, devPriv)))
{
if (pGC->ops->devPrivate.val)
miDestroyGCOps (pGC->ops);
pGC->ops = newops;
new_rrop = new_line = new_fillspans = new_text = new_fillarea = 0;
}
else
{
if (!pGC->ops->devPrivate.val)
{
pGC->ops = miCreateGCOps (pGC->ops);
pGC->ops->devPrivate.val = 1;
}
}
}
/* deal with the changes we've collected */
if (new_line)
{
pGC->ops->FillPolygon = miFillPolygon;
#ifdef NO_ONE_RECT
if (pGC->fillStyle == FillSolid)
{
switch (devPriv->rop) {
case GXcopy:
pGC->ops->FillPolygon = cfbFillPoly1RectCopy;
break;
default:
pGC->ops->FillPolygon = cfbFillPoly1RectGeneral;
break;
}
}
#else
if (devPriv->oneRect && pGC->fillStyle == FillSolid)
{
switch (devPriv->rop) {
case GXcopy:
pGC->ops->FillPolygon = cfbFillPoly1RectCopy;
break;
default:
pGC->ops->FillPolygon = cfbFillPoly1RectGeneral;
break;
}
}
#endif
if (pGC->lineWidth == 0)
{
#ifdef PIXEL_ADDR
if ((pGC->lineStyle == LineSolid) && (pGC->fillStyle == FillSolid))
{
switch (devPriv->rop)
{
case GXxor:
pGC->ops->PolyArc = cfbZeroPolyArcSS8Xor;
break;
case GXcopy:
pGC->ops->PolyArc = cfbZeroPolyArcSS8Copy;
break;
default:
pGC->ops->PolyArc = cfbZeroPolyArcSS8General;
break;
}
}
else
#endif
pGC->ops->PolyArc = miZeroPolyArc;
}
else
pGC->ops->PolyArc = miPolyArc;
pGC->ops->PolySegment = miPolySegment;
switch (pGC->lineStyle)
{
case LineSolid:
if(pGC->lineWidth == 0)
{
if (pGC->fillStyle == FillSolid)
{
#if defined(PIXEL_ADDR) && !defined(NO_ONE_RECT)
if (devPriv->oneRect &&
((pDrawable->x >= pGC->pScreen->width - 32768) &&
(pDrawable->y >= pGC->pScreen->height - 32768)))
{
pGC->ops->Polylines = cfb8LineSS1Rect;
pGC->ops->PolySegment = cfb8SegmentSS1Rect;
} else
#endif
#ifdef NO_ONE_RECT
{
pGC->ops->Polylines = cfb8LineSS1Rect;
pGC->ops->PolySegment = cfb8SegmentSS1Rect;
}
#else
{
pGC->ops->Polylines = cfbLineSS;
pGC->ops->PolySegment = cfbSegmentSS;
}
#endif
}
else
pGC->ops->Polylines = miZeroLine;
}
else
pGC->ops->Polylines = miWideLine;
break;
case LineOnOffDash:
case LineDoubleDash:
if (pGC->lineWidth == 0 && pGC->fillStyle == FillSolid)
{
pGC->ops->Polylines = cfbLineSD;
pGC->ops->PolySegment = cfbSegmentSD;
} else
pGC->ops->Polylines = miWideDash;
break;
}
}
if (new_text && (pGC->font))
{
if (FONTMAXBOUNDS(pGC->font,rightSideBearing) -
FONTMINBOUNDS(pGC->font,leftSideBearing) > 32 ||
FONTMINBOUNDS(pGC->font,characterWidth) < 0)
{
pGC->ops->PolyGlyphBlt = miPolyGlyphBlt;
pGC->ops->ImageGlyphBlt = miImageGlyphBlt;
}
else
{
#ifdef WriteBitGroup
if (pGC->fillStyle == FillSolid)
{
if (devPriv->rop == GXcopy)
pGC->ops->PolyGlyphBlt = cfbPolyGlyphBlt8;
else
#ifdef FOUR_BIT_CODE
pGC->ops->PolyGlyphBlt = cfbPolyGlyphRop8;
#else
pGC->ops->PolyGlyphBlt = miPolyGlyphBlt;
#endif
}
else
#endif
pGC->ops->PolyGlyphBlt = miPolyGlyphBlt;
/* special case ImageGlyphBlt for terminal emulator fonts */
#if !defined(WriteBitGroup) || PSZ == 8
if (TERMINALFONT(pGC->font) &&
(pGC->planemask & PMSK) == PMSK
#ifdef FOUR_BIT_CODE
&& FONTMAXBOUNDS(pGC->font,characterWidth) >= PGSZB
#endif
)
{
pGC->ops->ImageGlyphBlt = useTEGlyphBlt;
}
else
#endif
{
#ifdef WriteBitGroup
if (devPriv->rop == GXcopy &&
pGC->fillStyle == FillSolid &&
(pGC->planemask & PMSK) == PMSK)
pGC->ops->ImageGlyphBlt = cfbImageGlyphBlt8;
else
#endif
pGC->ops->ImageGlyphBlt = miImageGlyphBlt;
}
}
}
if (new_fillspans) {
switch (pGC->fillStyle) {
case FillSolid:
switch (devPriv->rop) {
case GXcopy:
pGC->ops->FillSpans = cfbSolidSpansCopy;
break;
case GXxor:
pGC->ops->FillSpans = cfbSolidSpansXor;
break;
default:
pGC->ops->FillSpans = cfbSolidSpansGeneral;
break;
}
break;
case FillTiled:
if (pGC->pRotatedPixmap)
{
if (pGC->alu == GXcopy && (pGC->planemask & PMSK) == PMSK)
pGC->ops->FillSpans = cfbTile32FSCopy;
else
pGC->ops->FillSpans = cfbTile32FSGeneral;
}
else
pGC->ops->FillSpans = cfbUnnaturalTileFS;
break;
case FillStippled:
#ifdef FOUR_BIT_CODE
if (pGC->pRotatedPixmap)
pGC->ops->FillSpans = cfb8Stipple32FS;
else
#endif
pGC->ops->FillSpans = cfbUnnaturalStippleFS;
break;
case FillOpaqueStippled:
#ifdef FOUR_BIT_CODE
if (pGC->pRotatedPixmap)
pGC->ops->FillSpans = cfb8OpaqueStipple32FS;
else
#endif
pGC->ops->FillSpans = cfbUnnaturalStippleFS;
break;
default:
FatalError("cfbValidateGC: illegal fillStyle\n");
}
} /* end of new_fillspans */
if (new_fillarea) {
#ifndef FOUR_BIT_CODE
pGC->ops->PolyFillRect = miPolyFillRect;
if (pGC->fillStyle == FillSolid || pGC->fillStyle == FillTiled)
{
pGC->ops->PolyFillRect = cfbPolyFillRect;
}
#endif
#ifdef FOUR_BIT_CODE
pGC->ops->PushPixels = mfbPushPixelsWeak();
if (pGC->fillStyle == FillSolid && devPriv->rop == GXcopy)
pGC->ops->PushPixels = cfbPushPixels8;
#endif
pGC->ops->PolyFillArc = miPolyFillArc;
if (pGC->fillStyle == FillSolid)
{
switch (devPriv->rop)
{
case GXcopy:
pGC->ops->PolyFillArc = cfbPolyFillArcSolidCopy;
break;
default:
pGC->ops->PolyFillArc = cfbPolyFillArcSolidGeneral;
break;
}
}
}
}
/*
* this is never called, it just exists to have its address
* taken in mfbCreateGC.
*/
static void
cfbUnPushPixels (pGC, pBitmap, pDrawable, dx, dy, xOrg, yOrg)
GCPtr pGC;
PixmapPtr pBitmap;
DrawablePtr pDrawable;
int dx, dy, xOrg, yOrg;
{
return;
}
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