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Diffstat (limited to 'xorg-server/fb/fbgc.c')
-rw-r--r--xorg-server/fb/fbgc.c614
1 files changed, 307 insertions, 307 deletions
diff --git a/xorg-server/fb/fbgc.c b/xorg-server/fb/fbgc.c
index 8108c3acb..e9511b6c5 100644
--- a/xorg-server/fb/fbgc.c
+++ b/xorg-server/fb/fbgc.c
@@ -1,307 +1,307 @@
-/*
- * 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.
- */
-
-#ifdef HAVE_DIX_CONFIG_H
-#include <dix-config.h>
-#endif
-
-#include <stdlib.h>
-
-#include "fb.h"
-
-const GCFuncs fbGCFuncs = {
- fbValidateGC,
- miChangeGC,
- miCopyGC,
- miDestroyGC,
- miChangeClip,
- miDestroyClip,
- miCopyClip,
-};
-
-const GCOps fbGCOps = {
- fbFillSpans,
- fbSetSpans,
- fbPutImage,
- fbCopyArea,
- fbCopyPlane,
- fbPolyPoint,
- fbPolyLine,
- fbPolySegment,
- fbPolyRectangle,
- fbPolyArc,
- miFillPolygon,
- fbPolyFillRect,
- fbPolyFillArc,
- miPolyText8,
- miPolyText16,
- miImageText8,
- miImageText16,
- fbImageGlyphBlt,
- fbPolyGlyphBlt,
- fbPushPixels
-};
-
-Bool
-fbCreateGC(GCPtr pGC)
-{
- pGC->ops = (GCOps *) &fbGCOps;
- pGC->funcs = (GCFuncs *) &fbGCFuncs;
-
- /* fb wants to translate before scan conversion */
- pGC->miTranslate = 1;
- pGC->fExpose = 1;
-
- fbGetGCPrivate(pGC)->bpp = BitsPerPixel (pGC->depth);
- return TRUE;
-}
-
-/*
- * Pad pixmap to FB_UNIT bits wide
- */
-void
-fbPadPixmap (PixmapPtr pPixmap)
-{
- int width;
- FbBits *bits;
- FbBits b;
- FbBits mask;
- int height;
- int w;
- int stride;
- int bpp;
- _X_UNUSED int xOff, yOff;
-
- fbGetDrawable (&pPixmap->drawable, bits, stride, bpp, xOff, yOff);
-
- width = pPixmap->drawable.width * pPixmap->drawable.bitsPerPixel;
- height = pPixmap->drawable.height;
- mask = FbBitsMask (0, width);
- while (height--)
- {
- b = READ(bits) & mask;
- w = width;
- while (w < FB_UNIT)
- {
- b = b | FbScrRight(b, w);
- w <<= 1;
- }
- WRITE(bits, b);
- bits += stride;
- }
-
- fbFinishAccess (&pPixmap->drawable);
-}
-
-/*
- * Verify that 'bits' repeats every 'len' bits
- */
-static Bool
-fbBitsRepeat (FbBits bits, int len, int width)
-{
- FbBits mask = FbBitsMask(0, len);
- FbBits orig = bits & mask;
- int i;
-
- if (width > FB_UNIT)
- width = FB_UNIT;
- for (i = 0; i < width / len; i++)
- {
- if ((bits & mask) != orig)
- return FALSE;
- bits = FbScrLeft(bits,len);
- }
- return TRUE;
-}
-
-/*
- * Check whether an entire bitmap line is a repetition of
- * the first 'len' bits
- */
-static Bool
-fbLineRepeat (FbBits *bits, int len, int width)
-{
- FbBits first = bits[0];
-
- if (!fbBitsRepeat (first, len, width))
- return FALSE;
- width = (width + FB_UNIT-1) >> FB_SHIFT;
- bits++;
- while (--width)
- if (READ(bits) != first)
- return FALSE;
- return TRUE;
-}
-
-/*
- * The even stipple code wants the first FB_UNIT/bpp bits on
- * each scanline to represent the entire stipple
- */
-static Bool
-fbCanEvenStipple (PixmapPtr pStipple, int bpp)
-{
- int len = FB_UNIT / bpp;
- FbBits *bits;
- int stride;
- int stip_bpp;
- _X_UNUSED int stipXoff, stipYoff;
- int h;
-
- /* can't even stipple 24bpp drawables */
- if ((bpp & (bpp-1)) != 0)
- return FALSE;
- /* make sure the stipple width is a multiple of the even stipple width */
- if (pStipple->drawable.width % len != 0)
- return FALSE;
- fbGetDrawable (&pStipple->drawable, bits, stride, stip_bpp, stipXoff, stipYoff);
- h = pStipple->drawable.height;
- /* check to see that the stipple repeats horizontally */
- while (h--)
- {
- if (!fbLineRepeat (bits, len, pStipple->drawable.width)) {
- fbFinishAccess (&pStipple->drawable);
- return FALSE;
- }
- bits += stride;
- }
- fbFinishAccess (&pStipple->drawable);
- return TRUE;
-}
-
-void
-fbValidateGC(GCPtr pGC, unsigned long changes, DrawablePtr pDrawable)
-{
- FbGCPrivPtr pPriv = fbGetGCPrivate(pGC);
- FbBits mask;
-
- /*
- * 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);
- }
-
- if (pPriv->bpp != pDrawable->bitsPerPixel)
- {
- changes |= GCStipple|GCForeground|GCBackground|GCPlaneMask;
- pPriv->bpp = pDrawable->bitsPerPixel;
- }
- if ((changes & GCTile) && fbGetRotatedPixmap(pGC))
- {
- (*pGC->pScreen->DestroyPixmap) (fbGetRotatedPixmap(pGC));
- fbGetRotatedPixmap(pGC) = 0;
- }
-
- if (pGC->fillStyle == FillTiled)
- {
- PixmapPtr pOldTile, pNewTile;
-
- pOldTile = pGC->tile.pixmap;
- if (pOldTile->drawable.bitsPerPixel != pDrawable->bitsPerPixel)
- {
- pNewTile = fbGetRotatedPixmap(pGC);
- if (!pNewTile || pNewTile ->drawable.bitsPerPixel != pDrawable->bitsPerPixel)
- {
- if (pNewTile)
- (*pGC->pScreen->DestroyPixmap) (pNewTile);
- pNewTile = fb24_32ReformatTile (pOldTile, pDrawable->bitsPerPixel);
- }
- if (pNewTile)
- {
- fbGetRotatedPixmap(pGC) = pOldTile;
- pGC->tile.pixmap = pNewTile;
- changes |= GCTile;
- }
- }
- }
- if (changes & GCTile)
- {
- if (!pGC->tileIsPixel &&
- FbEvenTile (pGC->tile.pixmap->drawable.width *
- pDrawable->bitsPerPixel))
- fbPadPixmap (pGC->tile.pixmap);
- }
- if (changes & GCStipple)
- {
- pPriv->evenStipple = FALSE;
-
- if (pGC->stipple) {
-
- /* can we do an even stipple ?? */
- if (FbEvenStip (pGC->stipple->drawable.width,
- pDrawable->bitsPerPixel) &&
- (fbCanEvenStipple (pGC->stipple, pDrawable->bitsPerPixel)))
- pPriv->evenStipple = TRUE;
-
- if (pGC->stipple->drawable.width * pDrawable->bitsPerPixel < FB_UNIT)
- fbPadPixmap (pGC->stipple);
- }
- }
- /*
- * Recompute reduced rop values
- */
- if (changes & (GCForeground|GCBackground|GCPlaneMask|GCFunction))
- {
- int s;
- FbBits depthMask;
-
- mask = FbFullMask(pDrawable->bitsPerPixel);
- depthMask = FbFullMask(pDrawable->depth);
-
- pPriv->fg = pGC->fgPixel & mask;
- pPriv->bg = pGC->bgPixel & mask;
-
- if ((pGC->planemask & depthMask) == depthMask)
- pPriv->pm = mask;
- else
- pPriv->pm = pGC->planemask & mask;
-
- s = pDrawable->bitsPerPixel;
- while (s < FB_UNIT)
- {
- pPriv->fg |= pPriv->fg << s;
- pPriv->bg |= pPriv->bg << s;
- pPriv->pm |= pPriv->pm << s;
- s <<= 1;
- }
- pPriv->and = fbAnd(pGC->alu, pPriv->fg, pPriv->pm);
- pPriv->xor = fbXor(pGC->alu, pPriv->fg, pPriv->pm);
- pPriv->bgand = fbAnd(pGC->alu, pPriv->bg, pPriv->pm);
- pPriv->bgxor = fbXor(pGC->alu, pPriv->bg, pPriv->pm);
- }
- if (changes & GCDashList)
- {
- unsigned short n = pGC->numInDashList;
- unsigned char *dash = pGC->dash;
- unsigned int dashLength = 0;
-
- while (n--)
- dashLength += (unsigned int ) *dash++;
- pPriv->dashLength = dashLength;
- }
-}
+/*
+ * 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.
+ */
+
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+#include <stdlib.h>
+
+#include "fb.h"
+
+const GCFuncs fbGCFuncs = {
+ fbValidateGC,
+ miChangeGC,
+ miCopyGC,
+ miDestroyGC,
+ miChangeClip,
+ miDestroyClip,
+ miCopyClip,
+};
+
+const GCOps fbGCOps = {
+ fbFillSpans,
+ fbSetSpans,
+ fbPutImage,
+ fbCopyArea,
+ fbCopyPlane,
+ fbPolyPoint,
+ fbPolyLine,
+ fbPolySegment,
+ fbPolyRectangle,
+ fbPolyArc,
+ miFillPolygon,
+ fbPolyFillRect,
+ fbPolyFillArc,
+ miPolyText8,
+ miPolyText16,
+ miImageText8,
+ miImageText16,
+ fbImageGlyphBlt,
+ fbPolyGlyphBlt,
+ fbPushPixels
+};
+
+Bool
+fbCreateGC(GCPtr pGC)
+{
+ pGC->ops = (GCOps *) &fbGCOps;
+ pGC->funcs = (GCFuncs *) &fbGCFuncs;
+
+ /* fb wants to translate before scan conversion */
+ pGC->miTranslate = 1;
+ pGC->fExpose = 1;
+
+ fbGetGCPrivate(pGC)->bpp = BitsPerPixel (pGC->depth);
+ return TRUE;
+}
+
+/*
+ * Pad pixmap to FB_UNIT bits wide
+ */
+void
+fbPadPixmap (PixmapPtr pPixmap)
+{
+ int width;
+ FbBits *bits;
+ FbBits b;
+ FbBits mask;
+ int height;
+ int w;
+ int stride;
+ int bpp;
+ _X_UNUSED int xOff, yOff;
+
+ fbGetDrawable (&pPixmap->drawable, bits, stride, bpp, xOff, yOff);
+
+ width = pPixmap->drawable.width * pPixmap->drawable.bitsPerPixel;
+ height = pPixmap->drawable.height;
+ mask = FbBitsMask (0, width);
+ while (height--)
+ {
+ b = READ(bits) & mask;
+ w = width;
+ while (w < FB_UNIT)
+ {
+ b = b | FbScrRight(b, w);
+ w <<= 1;
+ }
+ WRITE(bits, b);
+ bits += stride;
+ }
+
+ fbFinishAccess (&pPixmap->drawable);
+}
+
+/*
+ * Verify that 'bits' repeats every 'len' bits
+ */
+static Bool
+fbBitsRepeat (FbBits bits, int len, int width)
+{
+ FbBits mask = FbBitsMask(0, len);
+ FbBits orig = bits & mask;
+ int i;
+
+ if (width > FB_UNIT)
+ width = FB_UNIT;
+ for (i = 0; i < width / len; i++)
+ {
+ if ((bits & mask) != orig)
+ return FALSE;
+ bits = FbScrLeft(bits,len);
+ }
+ return TRUE;
+}
+
+/*
+ * Check whether an entire bitmap line is a repetition of
+ * the first 'len' bits
+ */
+static Bool
+fbLineRepeat (FbBits *bits, int len, int width)
+{
+ FbBits first = bits[0];
+
+ if (!fbBitsRepeat (first, len, width))
+ return FALSE;
+ width = (width + FB_UNIT-1) >> FB_SHIFT;
+ bits++;
+ while (--width)
+ if (READ(bits) != first)
+ return FALSE;
+ return TRUE;
+}
+
+/*
+ * The even stipple code wants the first FB_UNIT/bpp bits on
+ * each scanline to represent the entire stipple
+ */
+static Bool
+fbCanEvenStipple (PixmapPtr pStipple, int bpp)
+{
+ int len = FB_UNIT / bpp;
+ FbBits *bits;
+ int stride;
+ int stip_bpp;
+ _X_UNUSED int stipXoff, stipYoff;
+ int h;
+
+ /* can't even stipple 24bpp drawables */
+ if ((bpp & (bpp-1)) != 0)
+ return FALSE;
+ /* make sure the stipple width is a multiple of the even stipple width */
+ if (pStipple->drawable.width % len != 0)
+ return FALSE;
+ fbGetDrawable (&pStipple->drawable, bits, stride, stip_bpp, stipXoff, stipYoff);
+ h = pStipple->drawable.height;
+ /* check to see that the stipple repeats horizontally */
+ while (h--)
+ {
+ if (!fbLineRepeat (bits, len, pStipple->drawable.width)) {
+ fbFinishAccess (&pStipple->drawable);
+ return FALSE;
+ }
+ bits += stride;
+ }
+ fbFinishAccess (&pStipple->drawable);
+ return TRUE;
+}
+
+void
+fbValidateGC(GCPtr pGC, unsigned long changes, DrawablePtr pDrawable)
+{
+ FbGCPrivPtr pPriv = fbGetGCPrivate(pGC);
+ FbBits mask;
+
+ /*
+ * 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);
+ }
+
+ if (pPriv->bpp != pDrawable->bitsPerPixel)
+ {
+ changes |= GCStipple|GCForeground|GCBackground|GCPlaneMask;
+ pPriv->bpp = pDrawable->bitsPerPixel;
+ }
+ if ((changes & GCTile) && fbGetRotatedPixmap(pGC))
+ {
+ (*pGC->pScreen->DestroyPixmap) (fbGetRotatedPixmap(pGC));
+ fbGetRotatedPixmap(pGC) = 0;
+ }
+
+ if (pGC->fillStyle == FillTiled)
+ {
+ PixmapPtr pOldTile, pNewTile;
+
+ pOldTile = pGC->tile.pixmap;
+ if (pOldTile->drawable.bitsPerPixel != pDrawable->bitsPerPixel)
+ {
+ pNewTile = fbGetRotatedPixmap(pGC);
+ if (!pNewTile || pNewTile ->drawable.bitsPerPixel != pDrawable->bitsPerPixel)
+ {
+ if (pNewTile)
+ (*pGC->pScreen->DestroyPixmap) (pNewTile);
+ pNewTile = fb24_32ReformatTile (pOldTile, pDrawable->bitsPerPixel);
+ }
+ if (pNewTile)
+ {
+ fbGetRotatedPixmap(pGC) = pOldTile;
+ pGC->tile.pixmap = pNewTile;
+ changes |= GCTile;
+ }
+ }
+ }
+ if (changes & GCTile)
+ {
+ if (!pGC->tileIsPixel &&
+ FbEvenTile (pGC->tile.pixmap->drawable.width *
+ pDrawable->bitsPerPixel))
+ fbPadPixmap (pGC->tile.pixmap);
+ }
+ if (changes & GCStipple)
+ {
+ pPriv->evenStipple = FALSE;
+
+ if (pGC->stipple) {
+
+ /* can we do an even stipple ?? */
+ if (FbEvenStip (pGC->stipple->drawable.width,
+ pDrawable->bitsPerPixel) &&
+ (fbCanEvenStipple (pGC->stipple, pDrawable->bitsPerPixel)))
+ pPriv->evenStipple = TRUE;
+
+ if (pGC->stipple->drawable.width * pDrawable->bitsPerPixel < FB_UNIT)
+ fbPadPixmap (pGC->stipple);
+ }
+ }
+ /*
+ * Recompute reduced rop values
+ */
+ if (changes & (GCForeground|GCBackground|GCPlaneMask|GCFunction))
+ {
+ int s;
+ FbBits depthMask;
+
+ mask = FbFullMask(pDrawable->bitsPerPixel);
+ depthMask = FbFullMask(pDrawable->depth);
+
+ pPriv->fg = pGC->fgPixel & mask;
+ pPriv->bg = pGC->bgPixel & mask;
+
+ if ((pGC->planemask & depthMask) == depthMask)
+ pPriv->pm = mask;
+ else
+ pPriv->pm = pGC->planemask & mask;
+
+ s = pDrawable->bitsPerPixel;
+ while (s < FB_UNIT)
+ {
+ pPriv->fg |= pPriv->fg << s;
+ pPriv->bg |= pPriv->bg << s;
+ pPriv->pm |= pPriv->pm << s;
+ s <<= 1;
+ }
+ pPriv->and = fbAnd(pGC->alu, pPriv->fg, pPriv->pm);
+ pPriv->xor = fbXor(pGC->alu, pPriv->fg, pPriv->pm);
+ pPriv->bgand = fbAnd(pGC->alu, pPriv->bg, pPriv->pm);
+ pPriv->bgxor = fbXor(pGC->alu, pPriv->bg, pPriv->pm);
+ }
+ if (changes & GCDashList)
+ {
+ unsigned short n = pGC->numInDashList;
+ unsigned char *dash = pGC->dash;
+ unsigned int dashLength = 0;
+
+ while (n--)
+ dashLength += (unsigned int ) *dash++;
+ pPriv->dashLength = dashLength;
+ }
+}