- if (intel->constant_cliprect) {
- state->Buffer[I830_DESTREG_DRAWRECT0] = _3DSTATE_DRAWRECT_INFO;
- state->Buffer[I830_DESTREG_DRAWRECT1] = 0;
- state->Buffer[I830_DESTREG_DRAWRECT2] = 0; /* xmin, ymin */
- state->Buffer[I830_DESTREG_DRAWRECT3] =
- (ctx->DrawBuffer->Width & 0xffff) |
- (ctx->DrawBuffer->Height << 16);
- state->Buffer[I830_DESTREG_DRAWRECT4] = 0; /* xoff, yoff */
- state->Buffer[I830_DESTREG_DRAWRECT5] = 0;
+ /* We set up the drawing rectangle to be offset into the color
+ * region's location in the miptree. If it doesn't match with
+ * depth's offsets, we can't render to it.
+ *
+ * (Well, not actually true -- the hw grew a bit to let depth's
+ * offset get forced to 0,0. We may want to use that if people are
+ * hitting that case. Also, some configurations may be supportable
+ * by tweaking the start offset of the buffers around, which we
+ * can't do in general due to tiling)
+ */
+ FALLBACK(intel, I830_FALLBACK_DRAW_OFFSET,
+ (depth_region && color_regions[0]) &&
+ (depth_region->draw_x != color_regions[0]->draw_x ||
+ depth_region->draw_y != color_regions[0]->draw_y));
+
+ if (color_regions[0]) {
+ draw_x = color_regions[0]->draw_x;
+ draw_y = color_regions[0]->draw_y;
+ } else if (depth_region) {
+ draw_x = depth_region->draw_x;
+ draw_y = depth_region->draw_y;