+ /* viewport state: viewport matching window dims */
+ {
+ const GLboolean invert = (st_fb_orientation(fb) == Y_0_TOP);
+ struct pipe_viewport_state vp;
+ vp.scale[0] = 0.5f * fb_width;
+ vp.scale[1] = fb_height * (invert ? -0.5f : 0.5f);
+ vp.scale[2] = 1.0f;
+ vp.scale[3] = 1.0f;
+ vp.translate[0] = 0.5f * fb_width;
+ vp.translate[1] = 0.5f * fb_height;
+ vp.translate[2] = 0.0f;
+ vp.translate[3] = 0.0f;
+ cso_set_viewport(st->cso_context, &vp);
+ }
+
+ cso_set_clip(st->cso_context, &st->clear.clip);