+
+ for (i = 0; i < a->textures; ++i) {
+ switch (a->texture[i].type) {
+ case RR_TEXTURE_NONE:
+ break;
+ case RR_TEXTURE_MASK:
+ *w = MAX(*w, a->texture[i].data.mask.mask->width);
+ *h = MAX(*h, a->texture[i].data.mask.mask->height);
+ break;
+ case RR_TEXTURE_TEXT:
+ m = RrFontMeasureString(a->texture[i].data.text.font,
+ a->texture[i].data.text.string);
+ *w = MAX(*w, m->width + 4);
+ m->height = RrFontHeight(a->texture[i].data.text.font);
+ *h += MAX(*h, m->height);
+ g_free(m);
+ break;
+ case RR_TEXTURE_RGBA:
+ *w += MAX(*w, a->texture[i].data.rgba.width);
+ *h += MAX(*h, a->texture[i].data.rgba.height);
+ break;
+ case RR_TEXTURE_LINE_ART:
+ *w += MAX(*w, MAX(a->texture[i].data.lineart.x1,
+ a->texture[i].data.lineart.x2));
+ *h += MAX(*h, MAX(a->texture[i].data.lineart.y1,
+ a->texture[i].data.lineart.y2));
+ break;
+ }
+ }
+
+ RrMargins(a, &l, &t, &r, &b);
+
+ *w += l + r;
+ *h += t + b;
+
+ if (*w < 1) *w = 1;
+ if (*h < 1) *h = 1;
+}
+
+static void reverse_bits(gchar *c, gint n)
+{
+ gint i;
+ for (i = 0; i < n; i++, c++)
+ *c = (((*c * 0x0802UL & 0x22110UL) |
+ (*c * 0x8020UL & 0x88440UL)) * 0x10101UL) >> 16;
+}
+
+gboolean RrPixmapToRGBA(const RrInstance *inst,
+ Pixmap pmap, Pixmap mask,
+ gint *w, gint *h, RrPixel32 **data)
+{
+ Window xr;
+ gint xx, xy;
+ guint pw, ph, mw, mh, xb, xd, i, x, y, di;
+ XImage *xi, *xm = NULL;
+
+ if (!XGetGeometry(RrDisplay(inst), pmap,
+ &xr, &xx, &xy, &pw, &ph, &xb, &xd))
+ return FALSE;
+
+ if (mask) {
+ if (!XGetGeometry(RrDisplay(inst), mask,
+ &xr, &xx, &xy, &mw, &mh, &xb, &xd))
+ return FALSE;
+ if (pw != mw || ph != mh || xd != 1)
+ return FALSE;
+ }
+
+ xi = XGetImage(RrDisplay(inst), pmap,
+ 0, 0, pw, ph, 0xffffffff, ZPixmap);
+ if (!xi)
+ return FALSE;
+
+ if (mask) {
+ xm = XGetImage(RrDisplay(inst), mask,
+ 0, 0, mw, mh, 0xffffffff, ZPixmap);
+ if (!xm) {
+ XDestroyImage(xi);
+ return FALSE;
+ }
+ if ((xm->bits_per_pixel == 1) && (xm->bitmap_bit_order != LSBFirst))
+ reverse_bits(xm->data, xm->bytes_per_line * xm->height);
+ }
+
+ if ((xi->bits_per_pixel == 1) && (xi->bitmap_bit_order != LSBFirst))
+ reverse_bits(xi->data, xi->bytes_per_line * xi->height);
+
+ *data = g_new(RrPixel32, pw * ph);
+ RrIncreaseDepth(inst, *data, xi);
+
+ if (mask) {
+ /* apply transparency from the mask */
+ di = 0;
+ for (i = 0, y = 0; y < ph; ++y) {
+ for (x = 0; x < pw; ++x, ++i) {
+ if (!((((unsigned)xm->data[di + x / 8]) >> (x % 8)) & 0x1))
+ (*data)[i] &= ~(0xff << RrDefaultAlphaOffset);
+ }
+ di += xm->bytes_per_line;
+ }
+ }
+
+ *w = pw;
+ *h = ph;
+
+ XDestroyImage(xi);
+ if (mask)
+ XDestroyImage(xm);
+
+ return TRUE;