+RrPixmapMask *RrPixmapMaskNew(const RrInstance *inst,
+ gint w, gint h, const gchar *data)
+{
+ RrPixmapMask *m = g_new(RrPixmapMask, 1);
+ m->inst = inst;
+ m->width = w;
+ m->height = h;
+ /* round up to nearest byte */
+ m->data = g_memdup(data, (w * h + 7) / 8);
+ m->mask = XCreateBitmapFromData(RrDisplay(inst), RrRootWindow(inst),
+ data, w, h);
+ return m;
+}
+
+void RrPixmapMaskFree(RrPixmapMask *m)
+{
+ if (m) {
+ XFreePixmap(RrDisplay(m->inst), m->mask);
+ g_free(m->data);
+ g_free(m);
+ }
+}
+
+void RrPixmapMaskDraw(Pixmap p, const RrTextureMask *m, const RrRect *area)
+{
+ int x, y;
+ if (m->mask == None) return; /* no mask given */
+
+ /* set the clip region */
+ x = area->x + (area->width - m->mask->width) / 2;
+ y = area->y + (area->height - m->mask->height) / 2;
+
+ if (x < 0) x = 0;
+ if (y < 0) y = 0;
+
+ XSetClipMask(RrDisplay(m->mask->inst), RrColorGC(m->color), m->mask->mask);
+ XSetClipOrigin(RrDisplay(m->mask->inst), RrColorGC(m->color), x, y);
+
+ /* fill in the clipped region */
+ XFillRectangle(RrDisplay(m->mask->inst), p, RrColorGC(m->color), x, y,
+ x + m->mask->width, y + m->mask->height);
+
+ /* unset the clip region */
+ XSetClipMask(RrDisplay(m->mask->inst), RrColorGC(m->color), None);
+ XSetClipOrigin(RrDisplay(m->mask->inst), RrColorGC(m->color), 0, 0);
+}
+
+RrPixmapMask *RrPixmapMaskCopy(const RrPixmapMask *src)
+{
+ RrPixmapMask *m = g_new(RrPixmapMask, 1);
+ m->inst = src->inst;
+ m->width = src->width;
+ m->height = src->height;
+ /* round up to nearest byte */
+ m->data = g_memdup(src->data, (src->width * src->height + 7) / 8);
+ m->mask = XCreateBitmapFromData(RrDisplay(m->inst), RrRootWindow(m->inst),
+ m->data, m->width, m->height);
+ return m;
+}