diff options
Diffstat (limited to 'libX11/src')
| -rw-r--r-- | libX11/src/QuColors.c | 176 |
1 files changed, 99 insertions, 77 deletions
diff --git a/libX11/src/QuColors.c b/libX11/src/QuColors.c index 3aa2838ac..237b8bf03 100644 --- a/libX11/src/QuColors.c +++ b/libX11/src/QuColors.c @@ -1,77 +1,99 @@ -/*
-
-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.
-
-*/
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-#include "Xlibint.h"
-
-int
-XQueryColors(
- register Display *dpy,
- Colormap cmap,
- XColor *defs, /* RETURN */
- int ncolors)
-{
- register int i;
- xrgb *color;
- xQueryColorsReply rep;
- long nbytes;
- register xQueryColorsReq *req;
-
- LockDisplay(dpy);
- GetReq(QueryColors, req);
-
- req->cmap = cmap;
- req->length += ncolors; /* each pixel is a CARD32 */
-
- for (i = 0; i < ncolors; i++)
- Data32 (dpy, (long *)&defs[i].pixel, 4L);
- /* XXX this isn't very efficient */
-
- if (_XReply(dpy, (xReply *) &rep, 0, xFalse) != 0) {
- if ((color = (xrgb *)
- Xmalloc((unsigned) (nbytes = (long) ncolors * SIZEOF(xrgb))))) {
-
- _XRead(dpy, (char *) color, nbytes);
-
- for (i = 0; i < ncolors; i++) {
- register XColor *def = &defs[i];
- register xrgb *rgb = &color[i];
- def->red = rgb->red;
- def->green = rgb->green;
- def->blue = rgb->blue;
- def->flags = DoRed | DoGreen | DoBlue;
- }
- Xfree((char *)color);
- }
- else _XEatData(dpy, (unsigned long) nbytes);
- }
- UnlockDisplay(dpy);
- SyncHandle();
- return 1;
-}
-
+/* + +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. + +*/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif +#include "Xlibint.h" + +static void +_XQueryColors( + register Display *dpy, + Colormap cmap, + XColor *defs, /* RETURN */ + int ncolors) +{ + register int i; + xrgb *color; + xQueryColorsReply rep; + long nbytes; + register xQueryColorsReq *req; + + GetReq(QueryColors, req); + + req->cmap = cmap; + SetReqLen(req, ncolors, ncolors); /* each pixel is a CARD32 */ + + for (i = 0; i < ncolors; i++) + Data32 (dpy, (long *)&defs[i].pixel, 4L); + /* XXX this isn't very efficient */ + + if (_XReply(dpy, (xReply *) &rep, 0, xFalse) != 0) { + if ((color = (xrgb *) + Xmalloc((unsigned) (nbytes = (long) ncolors * SIZEOF(xrgb))))) { + + _XRead(dpy, (char *) color, nbytes); + + for (i = 0; i < ncolors; i++) { + register XColor *def = &defs[i]; + register xrgb *rgb = &color[i]; + def->red = rgb->red; + def->green = rgb->green; + def->blue = rgb->blue; + def->flags = DoRed | DoGreen | DoBlue; + } + Xfree((char *)color); + } + else _XEatData(dpy, (unsigned long) nbytes); + } +} + +int +XQueryColors( + register Display * const dpy, + const Colormap cmap, + XColor *defs, /* RETURN */ + int ncolors) +{ + int n; + + if (dpy->bigreq_size > 0) + n = dpy->bigreq_size - (sizeof (xQueryColorsReq) >> 2) - 1; + else + n = dpy->max_request_size - (sizeof (xQueryColorsReq) >> 2); + + LockDisplay(dpy); + while (ncolors >= n) { + _XQueryColors(dpy, cmap, defs, n); + defs += n; + ncolors -= n; + } + if (ncolors > 0) + _XQueryColors(dpy, cmap, defs, ncolors); + UnlockDisplay(dpy); + SyncHandle(); + return 1; +} |