- if (!r300->winsys->add_buffer(r300->winsys, pbuf,
- RADEON_GEM_DOMAIN_GTT, 0)) {
- r300->context.flush(&r300->context, 0, NULL);
- goto validate;
- }
+/* Set drawing for back faces. */
+static void r300_switch_stencil_ref_side(struct r300_context *r300)
+{
+ struct r300_rs_state *rs = (struct r300_rs_state*)r300->rs_state.state;
+ struct r300_dsa_state *dsa = (struct r300_dsa_state*)r300->dsa_state.state;
+ CS_LOCALS(r300);
+
+ BEGIN_CS(4);
+ OUT_CS_REG(R300_SU_CULL_MODE, rs->cull_mode | R300_CULL_FRONT);
+ OUT_CS_REG(R300_ZB_STENCILREFMASK,
+ dsa->stencil_ref_bf | r300->stencil_ref.ref_value[1]);
+ END_CS;
+}
+
+/* Restore the original state. */
+static void r300_end_stencil_ref_fallback(struct r300_context *r300)
+{
+ struct r300_rs_state *rs = (struct r300_rs_state*)r300->rs_state.state;
+ struct r300_dsa_state *dsa = (struct r300_dsa_state*)r300->dsa_state.state;
+ CS_LOCALS(r300);
+
+ BEGIN_CS(4);
+ OUT_CS_REG(R300_SU_CULL_MODE, rs->cull_mode);
+ OUT_CS_REG(R300_ZB_STENCILREFMASK,
+ dsa->stencil_ref_mask | r300->stencil_ref.ref_value[0]);
+ END_CS;
+}
+
+void r300_emit_draw_arrays_immediate(struct r300_context *r300,
+ unsigned mode,
+ unsigned start,
+ unsigned count)
+{
+ if (!r300->stencil_ref_bf_fallback) {
+ r500_emit_draw_arrays_immediate(r300, mode, start, count);
+ } else {
+ r300_begin_stencil_ref_fallback(r300);
+ r500_emit_draw_arrays_immediate(r300, mode, start, count);
+ r300_switch_stencil_ref_side(r300);
+ r500_emit_draw_arrays_immediate(r300, mode, start, count);
+ r300_end_stencil_ref_fallback(r300);