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-rw-r--r--src/xftdraw.c993
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diff --git a/src/xftdraw.c b/src/xftdraw.c
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+++ b/src/xftdraw.c
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+/*
+ * $XFree86: xc/lib/Xft/xftdraw.c,v 1.25 2002/10/11 17:53:02 keithp Exp $
+ *
+ * Copyright © 2000 Keith Packard, member of The XFree86 Project, Inc.
+ *
+ * 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.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "xftint.h"
+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+
+/*
+ * Ok, this is a pain. To share source pictures across multiple destinations,
+ * the screen for each drawable must be discovered.
+ */
+
+static int
+_XftDrawScreen (Display *dpy, Drawable drawable, Visual *visual)
+{
+ int s;
+ Window root;
+ int x, y;
+ unsigned int width, height, borderWidth, depth;
+ /* Special case the most common environment */
+ if (ScreenCount (dpy) == 1)
+ return 0;
+ /*
+ * If we've got a visual, look for the screen that points at it.
+ * This requires no round trip.
+ */
+ if (visual)
+ {
+ for (s = 0; s < ScreenCount (dpy); s++)
+ {
+ XVisualInfo template, *ret;
+ int nret;
+
+ template.visualid = visual->visualid;
+ template.screen = s;
+ ret = XGetVisualInfo (dpy, VisualIDMask|VisualScreenMask,
+ &template, &nret);
+ if (ret)
+ {
+ XFree (ret);
+ return s;
+ }
+ }
+ }
+ /*
+ * Otherwise, as the server for the drawable geometry and find
+ * the screen from the root window.
+ * This takes a round trip.
+ */
+ if (XGetGeometry (dpy, drawable, &root, &x, &y, &width, &height,
+ &borderWidth, &depth))
+ {
+ for (s = 0; s < ScreenCount (dpy); s++)
+ {
+ if (RootWindow (dpy, s) == root)
+ return s;
+ }
+ }
+ /*
+ * Make a guess -- it's probably wrong, but then the app probably
+ * handed us a bogus drawable in this case
+ */
+ return 0;
+}
+
+unsigned int
+XftDrawDepth (XftDraw *draw)
+{
+ if (!draw->depth)
+ {
+ Window root;
+ int x, y;
+ unsigned int width, height, borderWidth, depth;
+ if (XGetGeometry (draw->dpy, draw->drawable,
+ &root, &x, &y, &width, &height,
+ &borderWidth, &depth))
+ draw->depth = depth;
+ }
+ return draw->depth;
+}
+
+unsigned int
+XftDrawBitsPerPixel (XftDraw *draw)
+{
+ if (!draw->bits_per_pixel)
+ {
+ XPixmapFormatValues *formats;
+ int nformats;
+ unsigned int depth;
+
+ if ((depth = XftDrawDepth (draw)) &&
+ (formats = XListPixmapFormats (draw->dpy, &nformats)))
+ {
+ int i;
+
+ for (i = 0; i < nformats; i++)
+ {
+ if (formats[i].depth == depth)
+ {
+ draw->bits_per_pixel = formats[i].bits_per_pixel;
+ break;
+ }
+ }
+ XFree (formats);
+ }
+ }
+ return draw->bits_per_pixel;
+}
+
+XftDraw *
+XftDrawCreate (Display *dpy,
+ Drawable drawable,
+ Visual *visual,
+ Colormap colormap)
+{
+ XftDraw *draw;
+
+ draw = (XftDraw *) malloc (sizeof (XftDraw));
+ if (!draw)
+ return 0;
+
+ draw->dpy = dpy;
+ draw->drawable = drawable;
+ draw->screen = _XftDrawScreen (dpy, drawable, visual);
+ draw->depth = 0; /* don't find out unless we need to know */
+ draw->bits_per_pixel = 0; /* don't find out unless we need to know */
+ draw->visual = visual;
+ draw->colormap = colormap;
+ draw->render.pict = 0;
+ draw->core.gc = 0;
+ draw->core.use_pixmap = 0;
+ draw->clip_type = XftClipTypeNone;
+ draw->subwindow_mode = ClipByChildren;
+ XftMemAlloc (XFT_MEM_DRAW, sizeof (XftDraw));
+ return draw;
+}
+
+XftDraw *
+XftDrawCreateBitmap (Display *dpy,
+ Pixmap bitmap)
+{
+ XftDraw *draw;
+
+ draw = (XftDraw *) malloc (sizeof (XftDraw));
+ if (!draw)
+ return 0;
+ draw->dpy = dpy;
+ draw->drawable = (Drawable) bitmap;
+ draw->screen = _XftDrawScreen (dpy, bitmap, 0);
+ draw->depth = 1;
+ draw->bits_per_pixel = 1;
+ draw->visual = 0;
+ draw->colormap = 0;
+ draw->render.pict = 0;
+ draw->core.gc = 0;
+ draw->clip_type = XftClipTypeNone;
+ draw->subwindow_mode = ClipByChildren;
+ XftMemAlloc (XFT_MEM_DRAW, sizeof (XftDraw));
+ return draw;
+}
+
+XftDraw *
+XftDrawCreateAlpha (Display *dpy,
+ Pixmap pixmap,
+ int depth)
+{
+ XftDraw *draw;
+
+ draw = (XftDraw *) malloc (sizeof (XftDraw));
+ if (!draw)
+ return 0;
+ draw->dpy = dpy;
+ draw->drawable = (Drawable) pixmap;
+ draw->screen = _XftDrawScreen (dpy, pixmap, 0);
+ draw->depth = depth;
+ draw->bits_per_pixel = 0; /* don't find out until we need it */
+ draw->visual = 0;
+ draw->colormap = 0;
+ draw->render.pict = 0;
+ draw->core.gc = 0;
+ draw->clip_type = XftClipTypeNone;
+ draw->subwindow_mode = ClipByChildren;
+ XftMemAlloc (XFT_MEM_DRAW, sizeof (XftDraw));
+ return draw;
+}
+
+static XRenderPictFormat *
+_XftDrawFormat (XftDraw *draw)
+{
+ XftDisplayInfo *info = _XftDisplayInfoGet (draw->dpy, True);
+
+ if (!info->hasRender)
+ return 0;
+
+ if (draw->visual == 0)
+ {
+ XRenderPictFormat pf;
+
+ pf.type = PictTypeDirect;
+ pf.depth = XftDrawDepth (draw);
+ pf.direct.alpha = 0;
+ pf.direct.alphaMask = (1 << pf.depth) - 1;
+ return XRenderFindFormat (draw->dpy,
+ (PictFormatType|
+ PictFormatDepth|
+ PictFormatAlpha|
+ PictFormatAlphaMask),
+ &pf,
+ 0);
+ }
+ else
+ return XRenderFindVisualFormat (draw->dpy, draw->visual);
+}
+
+void
+XftDrawChange (XftDraw *draw,
+ Drawable drawable)
+{
+ draw->drawable = drawable;
+ if (draw->render.pict)
+ {
+ XRenderFreePicture (draw->dpy, draw->render.pict);
+ draw->render.pict = 0;
+ }
+ if (draw->core.gc)
+ {
+ XFreeGC (draw->dpy, draw->core.gc);
+ draw->core.gc = 0;
+ }
+}
+
+Display *
+XftDrawDisplay (XftDraw *draw)
+{
+ return draw->dpy;
+}
+
+Drawable
+XftDrawDrawable (XftDraw *draw)
+{
+ return draw->drawable;
+}
+
+Colormap
+XftDrawColormap (XftDraw *draw)
+{
+ return draw->colormap;
+}
+
+Visual *
+XftDrawVisual (XftDraw *draw)
+{
+ return draw->visual;
+}
+
+void
+XftDrawDestroy (XftDraw *draw)
+{
+ if (draw->render.pict)
+ XRenderFreePicture (draw->dpy, draw->render.pict);
+ if (draw->core.gc)
+ XFreeGC (draw->dpy, draw->core.gc);
+ switch (draw->clip_type) {
+ case XftClipTypeRegion:
+ XDestroyRegion (draw->clip.region);
+ break;
+ case XftClipTypeRectangles:
+ free (draw->clip.rect);
+ break;
+ case XftClipTypeNone:
+ break;
+ }
+ XftMemFree (XFT_MEM_DRAW, sizeof (XftDraw));
+ free (draw);
+}
+
+Picture
+XftDrawSrcPicture (XftDraw *draw, _Xconst XftColor *color)
+{
+ Display *dpy = draw->dpy;
+ XftDisplayInfo *info = _XftDisplayInfoGet (dpy, True);
+ int i;
+ XftColor bitmapColor;
+
+ if (!info)
+ return 0;
+
+ /*
+ * Monochrome targets require special handling; the PictOp controls
+ * the color, and the color must be opaque
+ */
+ if (!draw->visual && draw->depth == 1)
+ {
+ bitmapColor.color.alpha = 0xffff;
+ bitmapColor.color.red = 0xffff;
+ bitmapColor.color.green = 0xffff;
+ bitmapColor.color.blue = 0xffff;
+ color = &bitmapColor;
+ }
+
+ /*
+ * See if there's one already available
+ */
+ for (i = 0; i < XFT_NUM_SOLID_COLOR; i++)
+ {
+ if (info->colors[i].pict &&
+ info->colors[i].screen == draw->screen &&
+ !memcmp ((void *) &color->color,
+ (void *) &info->colors[i].color,
+ sizeof (XRenderColor)))
+ return info->colors[i].pict;
+ }
+ /*
+ * Pick one to replace at random
+ */
+ i = (unsigned int) rand () % XFT_NUM_SOLID_COLOR;
+ /*
+ * Recreate if it was for the wrong screen
+ */
+ if (info->colors[i].screen != draw->screen && info->colors[i].pict)
+ {
+ XRenderFreePicture (dpy, info->colors[i].pict);
+ info->colors[i].pict = 0;
+ }
+ /*
+ * Create picture if necessary
+ */
+ if (!info->colors[i].pict)
+ {
+ Pixmap pix;
+ XRenderPictureAttributes pa;
+
+ pix = XCreatePixmap (dpy, RootWindow (dpy, draw->screen), 1, 1,
+ info->solidFormat->depth);
+ pa.repeat = True;
+ info->colors[i].pict = XRenderCreatePicture (draw->dpy,
+ pix,
+ info->solidFormat,
+ CPRepeat, &pa);
+ XFreePixmap (dpy, pix);
+ }
+ /*
+ * Set to the new color
+ */
+ info->colors[i].color = color->color;
+ info->colors[i].screen = draw->screen;
+ XRenderFillRectangle (dpy, PictOpSrc,
+ info->colors[i].pict,
+ &color->color, 0, 0, 1, 1);
+ return info->colors[i].pict;
+}
+
+static int
+_XftDrawOp (_Xconst XftDraw *draw, _Xconst XftColor *color)
+{
+ if (draw->visual || draw->depth != 1)
+ return PictOpOver;
+ if (color->color.alpha >= 0x8000)
+ return PictOpOver;
+ return PictOpOutReverse;
+}
+
+static FcBool
+_XftDrawRenderPrepare (XftDraw *draw)
+{
+ if (!draw->render.pict)
+ {
+ XRenderPictFormat *format;
+ XRenderPictureAttributes pa;
+ unsigned long mask = 0;
+
+ format = _XftDrawFormat (draw);
+ if (!format)
+ return FcFalse;
+
+ if (draw->subwindow_mode == IncludeInferiors)
+ {
+ pa.subwindow_mode = IncludeInferiors;
+ mask |= CPSubwindowMode;
+ }
+ draw->render.pict = XRenderCreatePicture (draw->dpy, draw->drawable,
+ format, mask, &pa);
+ if (!draw->render.pict)
+ return FcFalse;
+ switch (draw->clip_type) {
+ case XftClipTypeRegion:
+ XRenderSetPictureClipRegion (draw->dpy, draw->render.pict,
+ draw->clip.region);
+ break;
+ case XftClipTypeRectangles:
+ XRenderSetPictureClipRectangles (draw->dpy, draw->render.pict,
+ draw->clip.rect->xOrigin,
+ draw->clip.rect->yOrigin,
+ XftClipRects(draw->clip.rect),
+ draw->clip.rect->n);
+ break;
+ case XftClipTypeNone:
+ break;
+ }
+ }
+ return FcTrue;
+}
+
+static FcBool
+_XftDrawCorePrepare (XftDraw *draw, _Xconst XftColor *color)
+{
+ if (!draw->core.gc)
+ {
+ XGCValues gcv;
+ unsigned long mask = 0;
+ if (draw->subwindow_mode == IncludeInferiors)
+ {
+ gcv.subwindow_mode = IncludeInferiors;
+ mask |= GCSubwindowMode;
+ }
+ draw->core.gc = XCreateGC (draw->dpy, draw->drawable, mask, &gcv);
+ if (!draw->core.gc)
+ return FcFalse;
+ switch (draw->clip_type) {
+ case XftClipTypeRegion:
+ XSetRegion (draw->dpy, draw->core.gc, draw->clip.region);
+ break;
+ case XftClipTypeRectangles:
+ XSetClipRectangles (draw->dpy, draw->core.gc,
+ draw->clip.rect->xOrigin,
+ draw->clip.rect->yOrigin,
+ XftClipRects (draw->clip.rect),
+ draw->clip.rect->n,
+ Unsorted);
+ break;
+ case XftClipTypeNone:
+ break;
+ }
+ }
+ XSetForeground (draw->dpy, draw->core.gc, color->pixel);
+ return FcTrue;
+}
+
+Picture
+XftDrawPicture (XftDraw *draw)
+{
+ if (!_XftDrawRenderPrepare (draw))
+ return 0;
+ return draw->render.pict;
+}
+
+#define NUM_LOCAL 1024
+
+void
+XftDrawGlyphs (XftDraw *draw,
+ _Xconst XftColor *color,
+ XftFont *pub,
+ int x,
+ int y,
+ _Xconst FT_UInt *glyphs,
+ int nglyphs)
+{
+ XftFontInt *font = (XftFontInt *) pub;
+
+ if (font->format)
+ {
+ Picture src;
+
+ if (_XftDrawRenderPrepare (draw) &&
+ (src = XftDrawSrcPicture (draw, color)))
+ XftGlyphRender (draw->dpy, _XftDrawOp (draw, color),
+ src, pub, draw->render.pict,
+ 0, 0, x, y, glyphs, nglyphs);
+ }
+ else
+ {
+ if (_XftDrawCorePrepare (draw, color))
+ XftGlyphCore (draw, color, pub, x, y, glyphs, nglyphs);
+ }
+}
+
+void
+XftDrawString8 (XftDraw *draw,
+ _Xconst XftColor *color,
+ XftFont *pub,
+ int x,
+ int y,
+ _Xconst FcChar8 *string,
+ int len)
+{
+ FT_UInt *glyphs, glyphs_local[NUM_LOCAL];
+ int i;
+
+ if (XftDebug () & XFT_DBG_DRAW)
+ printf ("DrawString \"%*.*s\"\n", len, len, string);
+
+ if (len <= NUM_LOCAL)
+ glyphs = glyphs_local;
+ else
+ {
+ glyphs = malloc (len * sizeof (FT_UInt));
+ if (!glyphs)
+ return;
+ }
+ for (i = 0; i < len; i++)
+ glyphs[i] = XftCharIndex (draw->dpy, pub, string[i]);
+ XftDrawGlyphs (draw, color, pub, x, y, glyphs, len);
+ if (glyphs != glyphs_local)
+ free (glyphs);
+}
+
+void
+XftDrawString16 (XftDraw *draw,
+ _Xconst XftColor *color,
+ XftFont *pub,
+ int x,
+ int y,
+ _Xconst FcChar16 *string,
+ int len)
+{
+ FT_UInt *glyphs, glyphs_local[NUM_LOCAL];
+ int i;
+
+ if (len <= NUM_LOCAL)
+ glyphs = glyphs_local;
+ else
+ {
+ glyphs = malloc (len * sizeof (FT_UInt));
+ if (!glyphs)
+ return;
+ }
+ for (i = 0; i < len; i++)
+ glyphs[i] = XftCharIndex (draw->dpy, pub, string[i]);
+
+ XftDrawGlyphs (draw, color, pub, x, y, glyphs, len);
+ if (glyphs != glyphs_local)
+ free (glyphs);
+}
+
+void
+XftDrawString32 (XftDraw *draw,
+ _Xconst XftColor *color,
+ XftFont *pub,
+ int x,
+ int y,
+ _Xconst FcChar32 *string,
+ int len)
+{
+ FT_UInt *glyphs, glyphs_local[NUM_LOCAL];
+ int i;
+
+ if (len <= NUM_LOCAL)
+ glyphs = glyphs_local;
+ else
+ {
+ glyphs = malloc (len * sizeof (FT_UInt));
+ if (!glyphs)
+ return;
+ }
+ for (i = 0; i < len; i++)
+ glyphs[i] = XftCharIndex (draw->dpy, pub, string[i]);
+
+ XftDrawGlyphs (draw, color, pub, x, y, glyphs, len);
+ if (glyphs != glyphs_local)
+ free (glyphs);
+}
+
+void
+XftDrawStringUtf8 (XftDraw *draw,
+ _Xconst XftColor *color,
+ XftFont *pub,
+ int x,
+ int y,
+ _Xconst FcChar8 *string,
+ int len)
+{
+ FT_UInt *glyphs, *glyphs_new, glyphs_local[NUM_LOCAL];
+ FcChar32 ucs4;
+ int i;
+ int l;
+ int size;
+
+ i = 0;
+ glyphs = glyphs_local;
+ size = NUM_LOCAL;
+ while (len && (l = FcUtf8ToUcs4 (string, &ucs4, len)) > 0)
+ {
+ if (i == size)
+ {
+ glyphs_new = malloc (size * 2 * sizeof (FT_UInt));
+ if (!glyphs_new)
+ {
+ if (glyphs != glyphs_local)
+ free (glyphs);
+ return;
+ }
+ memcpy (glyphs_new, glyphs, size * sizeof (FT_UInt));
+ size *= 2;
+ if (glyphs != glyphs_local)
+ free (glyphs);
+ glyphs = glyphs_new;
+ }
+ glyphs[i++] = XftCharIndex (draw->dpy, pub, ucs4);
+ string += l;
+ len -= l;
+ }
+ XftDrawGlyphs (draw, color, pub, x, y, glyphs, i);
+ if (glyphs != glyphs_local)
+ free (glyphs);
+}
+
+void
+XftDrawStringUtf16 (XftDraw *draw,
+ _Xconst XftColor *color,
+ XftFont *pub,
+ int x,
+ int y,
+ _Xconst FcChar8 *string,
+ FcEndian endian,
+ int len)
+{
+ FT_UInt *glyphs, *glyphs_new, glyphs_local[NUM_LOCAL];
+ FcChar32 ucs4;
+ int i;
+ int l;
+ int size;
+
+ i = 0;
+ glyphs = glyphs_local;
+ size = NUM_LOCAL;
+ while (len && (l = FcUtf16ToUcs4 (string, endian, &ucs4, len)) > 0)
+ {
+ if (i == size)
+ {
+ glyphs_new = malloc (size * 2 * sizeof (FT_UInt));
+ if (!glyphs_new)
+ {
+ if (glyphs != glyphs_local)
+ free (glyphs);
+ return;
+ }
+ memcpy (glyphs_new, glyphs, size * sizeof (FT_UInt));
+ size *= 2;
+ if (glyphs != glyphs_local)
+ free (glyphs);
+ glyphs = glyphs_new;
+ }
+ glyphs[i++] = XftCharIndex (draw->dpy, pub, ucs4);
+ string += l;
+ len -= l;
+ }
+ XftDrawGlyphs (draw, color, pub, x, y, glyphs, i);
+ if (glyphs != glyphs_local)
+ free (glyphs);
+}
+
+void
+XftDrawGlyphSpec (XftDraw *draw,
+ _Xconst XftColor *color,
+ XftFont *pub,
+ _Xconst XftGlyphSpec *glyphs,
+ int len)
+{
+ XftFontInt *font = (XftFontInt *) pub;
+
+ if (font->format)
+ {
+ Picture src;
+
+ if (_XftDrawRenderPrepare (draw) &&
+ (src = XftDrawSrcPicture (draw, color)))
+ {
+ XftGlyphSpecRender (draw->dpy, _XftDrawOp (draw, color),
+ src, pub, draw->render.pict,
+ 0, 0, glyphs, len);
+ }
+ }
+ else
+ {
+ if (_XftDrawCorePrepare (draw, color))
+ XftGlyphSpecCore (draw, color, pub, glyphs, len);
+ }
+}
+
+void
+XftDrawGlyphFontSpec (XftDraw *draw,
+ _Xconst XftColor *color,
+ _Xconst XftGlyphFontSpec *glyphs,
+ int len)
+{
+ int i;
+ int start;
+
+ i = 0;
+ while (i < len)
+ {
+ start = i;
+ if (((XftFontInt *) glyphs[i].font)->format)
+ {
+ Picture src;
+ while (i < len && ((XftFontInt *) glyphs[i].font)->format)
+ i++;
+ if (_XftDrawRenderPrepare (draw) &&
+ (src = XftDrawSrcPicture (draw, color)))
+ {
+ XftGlyphFontSpecRender (draw->dpy, _XftDrawOp (draw, color),
+ src, draw->render.pict,
+ 0, 0, glyphs, i - start);
+ }
+ }
+ else
+ {
+ while (i < len && !((XftFontInt *) glyphs[i].font)->format)
+ i++;
+ if (_XftDrawCorePrepare (draw, color))
+ XftGlyphFontSpecCore (draw, color, glyphs, len);
+ }
+ }
+}
+
+void
+XftDrawCharSpec (XftDraw *draw,
+ _Xconst XftColor *color,
+ XftFont *pub,
+ _Xconst XftCharSpec *chars,
+ int len)
+{
+ XftGlyphSpec *glyphs, glyphs_local[NUM_LOCAL];
+ int i;
+
+ if (len <= NUM_LOCAL)
+ glyphs = glyphs_local;
+ else
+ {
+ glyphs = malloc (len * sizeof (XftGlyphSpec));
+ if (!glyphs)
+ return;
+ }
+ for (i = 0; i < len; i++)
+ {
+ glyphs[i].glyph = XftCharIndex(draw->dpy, pub, chars[i].ucs4);
+ glyphs[i].x = chars[i].x;
+ glyphs[i].y = chars[i].y;
+ }
+
+ XftDrawGlyphSpec (draw, color, pub, glyphs, len);
+ if (glyphs != glyphs_local)
+ free (glyphs);
+}
+
+void
+XftDrawCharFontSpec (XftDraw *draw,
+ _Xconst XftColor *color,
+ _Xconst XftCharFontSpec *chars,
+ int len)
+{
+ XftGlyphFontSpec *glyphs, glyphs_local[NUM_LOCAL];
+ int i;
+
+ if (len <= NUM_LOCAL)
+ glyphs = glyphs_local;
+ else
+ {
+ glyphs = malloc (len * sizeof (XftGlyphFontSpec));
+ if (!glyphs)
+ return;
+ }
+ for (i = 0; i < len; i++)
+ {
+ glyphs[i].font = chars[i].font;
+ glyphs[i].glyph = XftCharIndex(draw->dpy, glyphs[i].font, chars[i].ucs4);
+ glyphs[i].x = chars[i].x;
+ glyphs[i].y = chars[i].y;
+ }
+
+ XftDrawGlyphFontSpec (draw, color, glyphs, len);
+ if (glyphs != glyphs_local)
+ free (glyphs);
+}
+
+void
+XftDrawRect (XftDraw *draw,
+ _Xconst XftColor *color,
+ int x,
+ int y,
+ unsigned int width,
+ unsigned int height)
+{
+ if (_XftDrawRenderPrepare (draw))
+ {
+ XRenderFillRectangle (draw->dpy, PictOpOver, draw->render.pict,
+ &color->color, x, y, width, height);
+ }
+ else if (_XftDrawCorePrepare (draw, color))
+ {
+ XftRectCore (draw, color, x, y, width, height);
+ }
+}
+
+Bool
+XftDrawSetClip (XftDraw *draw,
+ Region r)
+{
+ Region n = 0;
+
+ /*
+ * Check for quick exits
+ */
+ if (!r && draw->clip_type == XftClipTypeNone)
+ return True;
+
+ if (r &&
+ draw->clip_type == XftClipTypeRegion &&
+ XEqualRegion (r, draw->clip.region))
+ {
+ return True;
+ }
+
+ /*
+ * Duplicate the region so future changes can be short circuited
+ */
+ if (r)
+ {
+ n = XCreateRegion ();
+ if (n)
+ {
+ if (!XUnionRegion (n, r, n))
+ {
+ XDestroyRegion (n);
+ return False;
+ }
+ }
+ }
+
+ /*
+ * Destroy existing clip
+ */
+ switch (draw->clip_type) {
+ case XftClipTypeRegion:
+ XDestroyRegion (draw->clip.region);
+ break;
+ case XftClipTypeRectangles:
+ free (draw->clip.rect);
+ break;
+ case XftClipTypeNone:
+ break;
+ }
+
+ /*
+ * Set the clip
+ */
+ if (n)
+ {
+ draw->clip_type = XftClipTypeRegion;
+ draw->clip.region = n;
+ }
+ else
+ {
+ draw->clip_type = XftClipTypeNone;
+ }
+ /*
+ * Apply new clip to existing objects
+ */
+ if (draw->render.pict)
+ {
+ if (n)
+ XRenderSetPictureClipRegion (draw->dpy, draw->render.pict, n);
+ else
+ {
+ XRenderPictureAttributes pa;
+ pa.clip_mask = None;
+ XRenderChangePicture (draw->dpy, draw->render.pict,
+ CPClipMask, &pa);
+ }
+ }
+ if (draw->core.gc)
+ {
+ if (n)
+ XSetRegion (draw->dpy, draw->core.gc, draw->clip.region);
+ else
+ XSetClipMask (draw->dpy, draw->core.gc, None);
+ }
+ return True;
+}
+
+Bool
+XftDrawSetClipRectangles (XftDraw *draw,
+ int xOrigin,
+ int yOrigin,
+ _Xconst XRectangle *rects,
+ int n)
+{
+ XftClipRect *new = 0;
+
+ /*
+ * Check for quick exit
+ */
+ if (draw->clip_type == XftClipTypeRectangles &&
+ !memcmp (XftClipRects (draw->clip.rect), rects, n * sizeof (XRectangle)))
+ {
+ return True;
+ }
+
+ /*
+ * Duplicate the region so future changes can be short circuited
+ */
+ new = malloc (sizeof (XftClipRect) + n * sizeof (XRectangle));
+ if (!new)
+ return False;
+
+ new->n = n;
+ new->xOrigin = xOrigin;
+ new->yOrigin = yOrigin;
+ memcpy (XftClipRects (new), rects, n * sizeof (XRectangle));
+
+ /*
+ * Destroy existing clip
+ */
+ switch (draw->clip_type) {
+ case XftClipTypeRegion:
+ XDestroyRegion (draw->clip.region);
+ break;
+ case XftClipTypeRectangles:
+ free (draw->clip.rect);
+ break;
+ case XftClipTypeNone:
+ break;
+ }
+
+ /*
+ * Set the clip
+ */
+ draw->clip_type = XftClipTypeRectangles;
+ draw->clip.rect = new;
+ /*
+ * Apply new clip to existing objects
+ */
+ if (draw->render.pict)
+ {
+ XRenderSetPictureClipRectangles (draw->dpy, draw->render.pict,
+ new->xOrigin,
+ new->yOrigin,
+ XftClipRects(new),
+ new->n);
+ }
+ if (draw->core.gc)
+ {
+ XSetClipRectangles (draw->dpy, draw->core.gc,
+ new->xOrigin,
+ new->yOrigin,
+ XftClipRects (new),
+ new->n,
+ Unsorted);
+ }
+ return True;
+}
+
+void
+XftDrawSetSubwindowMode (XftDraw *draw, int mode)
+{
+ if (mode == draw->subwindow_mode)
+ return;
+ draw->subwindow_mode = mode;
+ if (draw->render.pict)
+ {
+ XRenderPictureAttributes pa;
+
+ pa.subwindow_mode = mode;
+ XRenderChangePicture (draw->dpy, draw->render.pict,
+ CPSubwindowMode, &pa);
+ }
+ if (draw->core.gc)
+ XSetSubwindowMode (draw->dpy, draw->core.gc, mode);
+}
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