+ /* Initialize the shader pointers */
+ svga->state.hw_draw.vs = NULL;
+ svga->state.hw_draw.gs = NULL;
+ svga->state.hw_draw.fs = NULL;
+ memset(svga->state.hw_draw.constbuf, 0,
+ sizeof(svga->state.hw_draw.constbuf));
+ memset(svga->state.hw_draw.default_constbuf_size, 0,
+ sizeof(svga->state.hw_draw.default_constbuf_size));
+ memset(svga->state.hw_draw.enabled_constbufs, 0,
+ sizeof(svga->state.hw_draw.enabled_constbufs));
+
+ /* Create a no-operation blend state which we will bind whenever the
+ * requested blend state is impossible (e.g. due to having an integer
+ * render target attached).
+ *
+ * XXX: We will probably actually need 16 of these, one for each possible
+ * RGBA color mask (4 bits). Then, we would bind the one with a color mask
+ * matching the blend state it is replacing.
+ */
+ {
+ struct pipe_blend_state noop_tmpl = {0};
+ unsigned i;
+
+ for (i = 0; i < PIPE_MAX_COLOR_BUFS; ++i) {
+ // Set the color mask to all-ones. Later this may change.
+ noop_tmpl.rt[i].colormask = PIPE_MASK_RGBA;
+ }
+ svga->noop_blend = svga->pipe.create_blend_state(&svga->pipe, &noop_tmpl);
+ }