Initial revision

1 files changed, 364 insertions, 0 deletions

diff --git a/fb/fbimage.c b/fb/fbimage.c
new file mode 100644
index 000000000..7d0284c38
--- /dev/null
+++ b/fb/fbimage.c
@@ -0,0 +1,364 @@
+/*
+ * 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);
+    }
+}