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-rw-r--r--xorg-server/cfb/cfbigblt8.c106
1 files changed, 106 insertions, 0 deletions
diff --git a/xorg-server/cfb/cfbigblt8.c b/xorg-server/cfb/cfbigblt8.c
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+/*
+ *
+Copyright 1990, 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.
+ *
+ * Author: Keith Packard, MIT X Consortium
+ */
+
+
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+#include <X11/X.h>
+#include <X11/Xmd.h>
+#include <X11/Xproto.h>
+#include "mi.h"
+#include "cfb.h"
+#include <X11/fonts/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"
+
+void
+cfbImageGlyphBlt8 (pDrawable, pGC, x, y, nglyph, ppci, pglyphBase)
+ DrawablePtr pDrawable;
+ GCPtr pGC;
+ int x, y;
+ unsigned int nglyph;
+ CharInfoPtr *ppci;
+ pointer pglyphBase;
+{
+ ExtentInfoRec info; /* used by QueryGlyphExtents() */
+ xRectangle backrect;
+ int fgPixel;
+ cfbPrivGC *priv;
+
+ /*
+ * We can't avoid GC validations if calling mi functions.
+ */
+ if ((pGC->ops->PolyFillRect == miPolyFillRect) ||
+ (pGC->ops->PolyGlyphBlt == miPolyGlyphBlt))
+ {
+ miImageGlyphBlt(pDrawable, pGC, x, y, nglyph, ppci, pglyphBase);
+ return;
+ }
+
+ QueryGlyphExtents(pGC->font, ppci, (unsigned long)nglyph, &info);
+
+ if (info.overallWidth >= 0)
+ {
+ backrect.x = x;
+ backrect.width = info.overallWidth;
+ }
+ else
+ {
+ backrect.x = x + info.overallWidth;
+ backrect.width = -info.overallWidth;
+ }
+ backrect.y = y - FONTASCENT(pGC->font);
+ backrect.height = FONTASCENT(pGC->font) + FONTDESCENT(pGC->font);
+
+ priv = cfbGetGCPrivate(pGC);
+
+ /* this code cheats by knowing that ValidateGC isn't
+ * necessary for PolyFillRect
+ */
+
+ fgPixel = pGC->fgPixel;
+
+ pGC->fgPixel = pGC->bgPixel;
+ priv->xor = PFILL(pGC->bgPixel);
+
+ (*pGC->ops->PolyFillRect) (pDrawable, pGC, 1, &backrect);
+
+ pGC->fgPixel = fgPixel;
+
+ priv->xor = PFILL(pGC->fgPixel);
+
+ (*pGC->ops->PolyGlyphBlt) (pDrawable, pGC, x, y, nglyph, ppci, pglyphBase);
+
+}