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/*
* Id: fbimage.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/fbimage.c,v 1.8 2001/09/07 15:15:31 keithp Exp $ */
#include "fb.h"
#ifdef XFree86LOADER
#include "xf86.h"
#include "xf86_ansic.h"
#endif
void
fbPutImage (DrawablePtr pDrawable,
GCPtr pGC,
int depth,
int x,
int y,
int w,
int h,
int leftPad,
int format,
char *pImage)
{
FbGCPrivPtr pPriv = fbGetGCPrivate(pGC);
unsigned long i;
FbStride srcStride;
FbStip *src = (FbStip *) pImage;
x += pDrawable->x;
y += pDrawable->y;
switch (format)
{
case XYBitmap:
srcStride = BitmapBytePad(w + leftPad) / sizeof (FbStip);
fbPutXYImage (pDrawable,
fbGetCompositeClip(pGC),
pPriv->fg,
pPriv->bg,
pPriv->pm,
pGC->alu,
TRUE,
x, y, w, h,
src,
srcStride,
leftPad);
break;
case XYPixmap:
srcStride = BitmapBytePad(w + leftPad) / sizeof (FbStip);
for (i = 1 << (pDrawable->depth - 1); i; i >>= 1)
{
if (i & pGC->planemask)
{
fbPutXYImage (pDrawable,
fbGetCompositeClip(pGC),
FB_ALLONES,
0,
fbReplicatePixel (i, pDrawable->bitsPerPixel),
pGC->alu,
TRUE,
x, y, w, h,
src,
srcStride,
leftPad);
src += srcStride * h;
}
}
break;
case ZPixmap:
#ifdef FB_24_32BIT
if (pDrawable->bitsPerPixel != BitsPerPixel(pDrawable->depth))
{
srcStride = PixmapBytePad(w, pDrawable->depth);
fb24_32PutZImage (pDrawable,
fbGetCompositeClip(pGC),
pGC->alu,
(FbBits) pGC->planemask,
x, y, w, h,
(CARD8 *) pImage,
srcStride);
}
else
#endif
{
srcStride = PixmapBytePad(w, pDrawable->depth) / sizeof (FbStip);
fbPutZImage (pDrawable,
fbGetCompositeClip(pGC),
pGC->alu,
pPriv->pm,
x, y, w, h,
src, srcStride);
}
}
}
void
fbPutZImage (DrawablePtr pDrawable,
RegionPtr pClip,
int alu,
FbBits pm,
int x,
int y,
int width,
int height,
FbStip *src,
FbStride srcStride)
{
FbStip *dst;
FbStride dstStride;
int dstBpp;
int dstXoff, dstYoff;
int nbox;
BoxPtr pbox;
int x1, y1, x2, y2;
fbGetStipDrawable (pDrawable, dst, dstStride, dstBpp, dstXoff, dstYoff);
for (nbox = REGION_NUM_RECTS (pClip),
pbox = REGION_RECTS(pClip);
nbox--;
pbox++)
{
x1 = x;
y1 = y;
x2 = x + width;
y2 = y + height;
if (x1 < pbox->x1)
x1 = pbox->x1;
if (y1 < pbox->y1)
y1 = pbox->y1;
if (x2 > pbox->x2)
x2 = pbox->x2;
if (y2 > pbox->y2)
y2 = pbox->y2;
if (x1 >= x2 || y1 >= y2)
continue;
fbBltStip (src + (y1 - y) * srcStride,
srcStride,
(x1 - x) * dstBpp,
dst + (y1 + dstYoff) * dstStride,
dstStride,
(x1 + dstXoff) * dstBpp,
(x2 - x1) * dstBpp,
(y2 - y1),
alu,
pm,
dstBpp);
}
}
void
fbPutXYImage (DrawablePtr pDrawable,
RegionPtr pClip,
FbBits fg,
FbBits bg,
FbBits pm,
int alu,
Bool opaque,
int x,
int y,
int width,
int height,
FbStip *src,
FbStride srcStride,
int srcX)
{
FbBits *dst;
FbStride dstStride;
int dstBpp;
int dstXoff, dstYoff;
int nbox;
BoxPtr pbox;
int x1, y1, x2, y2;
FbBits fgand = 0, fgxor = 0, bgand = 0, bgxor = 0;
fbGetDrawable (pDrawable, dst, dstStride, dstBpp, dstXoff, dstYoff);
if (dstBpp == 1)
{
if (opaque)
alu = FbOpaqueStipple1Rop(alu,fg,bg);
else
alu = FbStipple1Rop(alu,fg);
}
else
{
fgand = fbAnd(alu,fg,pm);
fgxor = fbXor(alu,fg,pm);
if (opaque)
{
bgand = fbAnd(alu,bg,pm);
bgxor = fbXor(alu,bg,pm);
}
else
{
bgand = fbAnd(GXnoop,(FbBits)0,FB_ALLONES);
bgxor = fbXor(GXnoop,(FbBits)0,FB_ALLONES);
}
}
for (nbox = REGION_NUM_RECTS (pClip),
pbox = REGION_RECTS(pClip);
nbox--;
pbox++)
{
x1 = x;
y1 = y;
x2 = x + width;
y2 = y + height;
if (x1 < pbox->x1)
x1 = pbox->x1;
if (y1 < pbox->y1)
y1 = pbox->y1;
if (x2 > pbox->x2)
x2 = pbox->x2;
if (y2 > pbox->y2)
y2 = pbox->y2;
if (x1 >= x2 || y1 >= y2)
continue;
if (dstBpp == 1)
{
fbBltStip (src + (y1 - y) * srcStride,
srcStride,
(x1 - x) + srcX,
(FbStip *) (dst + (y1 + dstYoff) * dstStride),
FbBitsStrideToStipStride(dstStride),
(x1 + dstXoff) * dstBpp,
(x2 - x1) * dstBpp,
(y2 - y1),
alu,
pm,
dstBpp);
}
else
{
fbBltOne (src + (y1 - y) * srcStride,
srcStride,
(x1 - x) + srcX,
dst + (y1 + dstYoff) * dstStride,
dstStride,
(x1 + dstXoff) * dstBpp,
dstBpp,
(x2 - x1) * dstBpp,
(y2 - y1),
fgand, fgxor, bgand, bgxor);
}
}
}
void
fbGetImage (DrawablePtr pDrawable,
int x,
int y,
int w,
int h,
unsigned int format,
unsigned long planeMask,
char *d)
{
FbBits *src;
FbStride srcStride;
int srcBpp;
int srcXoff, srcYoff;
FbStip *dst;
FbStride dstStride;
/*
* XFree86 DDX empties the root borderClip when the VT is
* switched away; this checks for that case
*/
if (!fbDrawableEnabled(pDrawable))
return;
#ifdef FB_24_32BIT
if (format == ZPixmap &&
pDrawable->bitsPerPixel != BitsPerPixel (pDrawable->depth))
{
fb24_32GetImage (pDrawable, x, y, w, h, format, planeMask, d);
return;
}
#endif
fbGetDrawable (pDrawable, src, srcStride, srcBpp, srcXoff, srcYoff);
x += pDrawable->x;
y += pDrawable->y;
dst = (FbStip *) d;
if (format == ZPixmap || srcBpp == 1)
{
FbBits pm;
pm = fbReplicatePixel (planeMask, srcBpp);
dstStride = PixmapBytePad(w, pDrawable->depth);
if (pm != FB_ALLONES)
memset (d, 0, dstStride * h);
dstStride /= sizeof (FbStip);
fbBltStip ((FbStip *) (src + (y + srcYoff) * srcStride),
FbBitsStrideToStipStride(srcStride),
(x + srcXoff) * srcBpp,
dst,
dstStride,
0,
w * srcBpp, h,
GXcopy,
pm,
srcBpp);
}
else
{
dstStride = BitmapBytePad(w) / sizeof (FbStip);
fbBltPlane (src + (y + srcYoff) * srcStride,
srcStride,
(x + srcXoff) * srcBpp,
srcBpp,
dst,
dstStride,
0,
w * srcBpp, h,
fbAndStip(GXcopy,FB_STIP_ALLONES,FB_STIP_ALLONES),
fbXorStip(GXcopy,FB_STIP_ALLONES,FB_STIP_ALLONES),
fbAndStip(GXcopy,0,FB_STIP_ALLONES),
fbXorStip(GXcopy,0,FB_STIP_ALLONES),
planeMask);
}
}
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