diff options
Diffstat (limited to 'libX11/src/CrGC.c')
| -rw-r--r-- | libX11/src/CrGC.c | 347 |
1 files changed, 347 insertions, 0 deletions
diff --git a/libX11/src/CrGC.c b/libX11/src/CrGC.c new file mode 100644 index 000000000..e6aa35807 --- /dev/null +++ b/libX11/src/CrGC.c @@ -0,0 +1,347 @@ +/* $Xorg: CrGC.c,v 1.5 2001/02/09 02:03:32 xorgcvs Exp $ */ +/* + +Copyright 1986, 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. + +*/ +/* $XFree86: xc/lib/X11/CrGC.c,v 3.6 2001/12/14 19:53:59 dawes Exp $ */ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif +#include "Xlibint.h" +#include "Cr.h" + +static XGCValues const initial_GC = { + GXcopy, /* function */ + AllPlanes, /* plane_mask */ + 0L, /* foreground */ + 1L, /* background */ + 0, /* line_width */ + LineSolid, /* line_style */ + CapButt, /* cap_style */ + JoinMiter, /* join_style */ + FillSolid, /* fill_style */ + EvenOddRule,/* fill_rule */ + ArcPieSlice,/* arc_mode */ + (Pixmap)~0L,/* tile, impossible (unknown) resource */ + (Pixmap)~0L,/* stipple, impossible (unknown) resource */ + 0, /* ts_x_origin */ + 0, /* ts_y_origin */ + (Font)~0L, /* font, impossible (unknown) resource */ + ClipByChildren, /* subwindow_mode */ + True, /* graphics_exposures */ + 0, /* clip_x_origin */ + 0, /* clip_y_origin */ + None, /* clip_mask */ + 0, /* dash_offset */ + 4 /* dashes (list [4,4]) */ +}; + +static void _XGenerateGCList( + register Display *dpy, + GC gc, + xReq *req); + +GC XCreateGC ( + register Display *dpy, + Drawable d, /* Window or Pixmap for which depth matches */ + unsigned long valuemask, /* which ones to set initially */ + XGCValues *values) /* the values themselves */ +{ + register GC gc; + register xCreateGCReq *req; + register _XExtension *ext; + + LockDisplay(dpy); + if ((gc = (GC)Xmalloc (sizeof(struct _XGC))) == NULL) { + UnlockDisplay(dpy); + SyncHandle(); + return (NULL); + } + gc->rects = 0; + gc->dashes = 0; + gc->ext_data = NULL; + gc->values = initial_GC; + gc->dirty = 0L; + + valuemask &= (1L << (GCLastBit + 1)) - 1; + if (valuemask) _XUpdateGCCache (gc, valuemask, values); + + GetReq(CreateGC, req); + req->drawable = d; + req->gc = gc->gid = XAllocID(dpy); + + if ((req->mask = gc->dirty)) + _XGenerateGCList (dpy, gc, (xReq *) req); + /* call out to any extensions interested */ + for (ext = dpy->ext_procs; ext; ext = ext->next) + if (ext->create_GC) (*ext->create_GC)(dpy, gc, &ext->codes); + gc->dirty = 0L; /* allow extensions to see dirty bits */ + UnlockDisplay(dpy); + SyncHandle(); + return (gc); + } + +/* + * GenerateGCList looks at the GC dirty bits, and appends all the required + * long words to the request being generated. + */ + +static void +_XGenerateGCList ( + register Display *dpy, + GC gc, + xReq *req) + { + unsigned long values[32]; + register unsigned long *value = values; + long nvalues; + register XGCValues *gv = &gc->values; + register unsigned long dirty = gc->dirty; + + /* + * Note: The order of these tests are critical; the order must be the + * same as the GC mask bits in the word. + */ + if (dirty & GCFunction) *value++ = gv->function; + if (dirty & GCPlaneMask) *value++ = gv->plane_mask; + if (dirty & GCForeground) *value++ = gv->foreground; + if (dirty & GCBackground) *value++ = gv->background; + if (dirty & GCLineWidth) *value++ = gv->line_width; + if (dirty & GCLineStyle) *value++ = gv->line_style; + if (dirty & GCCapStyle) *value++ = gv->cap_style; + if (dirty & GCJoinStyle) *value++ = gv->join_style; + if (dirty & GCFillStyle) *value++ = gv->fill_style; + if (dirty & GCFillRule) *value++ = gv->fill_rule; + if (dirty & GCTile) *value++ = gv->tile; + if (dirty & GCStipple) *value++ = gv->stipple; + if (dirty & GCTileStipXOrigin) *value++ = gv->ts_x_origin; + if (dirty & GCTileStipYOrigin) *value++ = gv->ts_y_origin; + if (dirty & GCFont) *value++ = gv->font; + if (dirty & GCSubwindowMode) *value++ = gv->subwindow_mode; + if (dirty & GCGraphicsExposures) *value++ = gv->graphics_exposures; + if (dirty & GCClipXOrigin) *value++ = gv->clip_x_origin; + if (dirty & GCClipYOrigin) *value++ = gv->clip_y_origin; + if (dirty & GCClipMask) *value++ = gv->clip_mask; + if (dirty & GCDashOffset) *value++ = gv->dash_offset; + if (dirty & GCDashList) *value++ = gv->dashes; + if (dirty & GCArcMode) *value++ = gv->arc_mode; + + req->length += (nvalues = value - values); + + /* + * note: Data is a macro that uses its arguments multiple + * times, so "nvalues" is changed in a separate assignment + * statement + */ + + nvalues <<= 2; + Data32 (dpy, (long *) values, nvalues); + + } + + +int +_XUpdateGCCache ( + register GC gc, + register unsigned long mask, + register XGCValues *attr) +{ + register XGCValues *gv = &gc->values; + + if (mask & GCFunction) + if (gv->function != attr->function) { + gv->function = attr->function; + gc->dirty |= GCFunction; + } + + if (mask & GCPlaneMask) + if (gv->plane_mask != attr->plane_mask) { + gv->plane_mask = attr->plane_mask; + gc->dirty |= GCPlaneMask; + } + + if (mask & GCForeground) + if (gv->foreground != attr->foreground) { + gv->foreground = attr->foreground; + gc->dirty |= GCForeground; + } + + if (mask & GCBackground) + if (gv->background != attr->background) { + gv->background = attr->background; + gc->dirty |= GCBackground; + } + + if (mask & GCLineWidth) + if (gv->line_width != attr->line_width) { + gv->line_width = attr->line_width; + gc->dirty |= GCLineWidth; + } + + if (mask & GCLineStyle) + if (gv->line_style != attr->line_style) { + gv->line_style = attr->line_style; + gc->dirty |= GCLineStyle; + } + + if (mask & GCCapStyle) + if (gv->cap_style != attr->cap_style) { + gv->cap_style = attr->cap_style; + gc->dirty |= GCCapStyle; + } + + if (mask & GCJoinStyle) + if (gv->join_style != attr->join_style) { + gv->join_style = attr->join_style; + gc->dirty |= GCJoinStyle; + } + + if (mask & GCFillStyle) + if (gv->fill_style != attr->fill_style) { + gv->fill_style = attr->fill_style; + gc->dirty |= GCFillStyle; + } + + if (mask & GCFillRule) + if (gv->fill_rule != attr->fill_rule) { + gv->fill_rule = attr->fill_rule; + gc->dirty |= GCFillRule; + } + + if (mask & GCArcMode) + if (gv->arc_mode != attr->arc_mode) { + gv->arc_mode = attr->arc_mode; + gc->dirty |= GCArcMode; + } + + /* always write through tile change, since client may have changed pixmap contents */ + if (mask & GCTile) { + gv->tile = attr->tile; + gc->dirty |= GCTile; + } + + /* always write through stipple change, since client may have changed pixmap contents */ + if (mask & GCStipple) { + gv->stipple = attr->stipple; + gc->dirty |= GCStipple; + } + + if (mask & GCTileStipXOrigin) + if (gv->ts_x_origin != attr->ts_x_origin) { + gv->ts_x_origin = attr->ts_x_origin; + gc->dirty |= GCTileStipXOrigin; + } + + if (mask & GCTileStipYOrigin) + if (gv->ts_y_origin != attr->ts_y_origin) { + gv->ts_y_origin = attr->ts_y_origin; + gc->dirty |= GCTileStipYOrigin; + } + + if (mask & GCFont) + if (gv->font != attr->font) { + gv->font = attr->font; + gc->dirty |= GCFont; + } + + if (mask & GCSubwindowMode) + if (gv->subwindow_mode != attr->subwindow_mode) { + gv->subwindow_mode = attr->subwindow_mode; + gc->dirty |= GCSubwindowMode; + } + + if (mask & GCGraphicsExposures) + if (gv->graphics_exposures != attr->graphics_exposures) { + gv->graphics_exposures = attr->graphics_exposures; + gc->dirty |= GCGraphicsExposures; + } + + if (mask & GCClipXOrigin) + if (gv->clip_x_origin != attr->clip_x_origin) { + gv->clip_x_origin = attr->clip_x_origin; + gc->dirty |= GCClipXOrigin; + } + + if (mask & GCClipYOrigin) + if (gv->clip_y_origin != attr->clip_y_origin) { + gv->clip_y_origin = attr->clip_y_origin; + gc->dirty |= GCClipYOrigin; + } + + /* always write through mask change, since client may have changed pixmap contents */ + if (mask & GCClipMask) { + gv->clip_mask = attr->clip_mask; + gc->dirty |= GCClipMask; + gc->rects = 0; + } + + if (mask & GCDashOffset) + if (gv->dash_offset != attr->dash_offset) { + gv->dash_offset = attr->dash_offset; + gc->dirty |= GCDashOffset; + } + + if (mask & GCDashList) + if ((gv->dashes != attr->dashes) || (gc->dashes == True)) { + gv->dashes = attr->dashes; + gc->dirty |= GCDashList; + gc->dashes = 0; + } + return 0; +} + +/* can only call when display is already locked. */ + +void _XFlushGCCache( + Display *dpy, + GC gc) +{ + register xChangeGCReq *req; + register _XExtension *ext; + + if (gc->dirty) { + GetReq(ChangeGC, req); + req->gc = gc->gid; + req->mask = gc->dirty; + _XGenerateGCList (dpy, gc, (xReq *) req); + /* call out to any extensions interested */ + for (ext = dpy->ext_procs; ext; ext = ext->next) + if (ext->flush_GC) (*ext->flush_GC)(dpy, gc, &ext->codes); + gc->dirty = 0L; /* allow extensions to see dirty bits */ + } +} + +void +XFlushGC( + Display *dpy, + GC gc) +{ + FlushGC(dpy, gc); +} + +GContext XGContextFromGC(GC gc) +{ + return (gc->gid); +} |