Mesa (gallium-dynamicstencilref): i965g: adapt to stencil ref changes

[Roland Scheidegger]

Module: Mesa
Branch: gallium-dynamicstencilref
Commit: 0b659dee69f82905677eadc3be5eb728a774ce9b
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=0b659dee69f82905677eadc3be5eb728a774ce9b

Author: Roland Scheidegger <sroland at vmware.com>
Date:   Thu Feb 11 18:16:52 2010 +0100

i965g: adapt to stencil ref changes

while there also potentially fix logic ops (were never enabled before)

---

 src/gallium/drivers/i965/brw_cc.c         |   25 ++++++++++++++++++++++---
 src/gallium/drivers/i965/brw_context.h    |    3 ++-
 src/gallium/drivers/i965/brw_pipe_depth.c |   12 ++++++++++--
 3 files changed, 34 insertions(+), 6 deletions(-)

diff --git a/src/gallium/drivers/i965/brw_cc.c b/src/gallium/drivers/i965/brw_cc.c
index 4a54327..cc8e380 100644
--- a/src/gallium/drivers/i965/brw_cc.c
+++ b/src/gallium/drivers/i965/brw_cc.c
@@ -65,14 +65,33 @@ combine_cc3( struct brw_cc3 a, struct brw_cc3 b )
    return ca.cc3;
 }
 
+static INLINE struct brw_cc1
+combine_cc1( struct brw_cc1 a, struct brw_cc1 b )
+{
+   union { struct brw_cc1 cc1; unsigned i; } ca, cb;
+   ca.cc1 = a;
+   cb.cc1 = b;
+   ca.i |= cb.i;
+   return ca.cc1;
+}
+
+static INLINE struct brw_cc2
+combine_cc2( struct brw_cc2 a, struct brw_cc2 b )
+{
+   union { struct brw_cc2 cc2; unsigned i; } ca, cb;
+   ca.cc2 = a;
+   cb.cc2 = b;
+   ca.i |= cb.i;
+   return ca.cc2;
+}
 
 static int prepare_cc_unit( struct brw_context *brw )
 {
    brw->cc.cc.cc0 = brw->curr.zstencil->cc0;
-   brw->cc.cc.cc1 = brw->curr.zstencil->cc1;
-   brw->cc.cc.cc2 = brw->curr.zstencil->cc2;
+   brw->cc.cc.cc1 = combine_cc1( brw->curr.zstencil->cc1, brw->curr.cc1_stencil_ref );
+   brw->cc.cc.cc2 = combine_cc2( brw->curr.zstencil->cc2, brw->curr.blend->cc2 );
    brw->cc.cc.cc3 = combine_cc3( brw->curr.zstencil->cc3, brw->curr.blend->cc3 );
-   
+
    brw->cc.cc.cc5 = brw->curr.blend->cc5;
    brw->cc.cc.cc6 = brw->curr.blend->cc6;
    brw->cc.cc.cc7 = brw->curr.zstencil->cc7;
diff --git a/src/gallium/drivers/i965/brw_context.h b/src/gallium/drivers/i965/brw_context.h
index 19fda42..12cfa7b 100644
--- a/src/gallium/drivers/i965/brw_context.h
+++ b/src/gallium/drivers/i965/brw_context.h
@@ -153,7 +153,6 @@ struct brw_blend_state {
    struct brw_surf_ss0 ss0;
 };
 
-
 struct brw_rasterizer_state;
 
 struct brw_immediate_data {
@@ -560,12 +559,14 @@ struct brw_context
 
       struct pipe_scissor_state scissor;
       struct pipe_viewport_state viewport;
+      struct pipe_stencil_ref stencil_ref;
       struct pipe_framebuffer_state fb;
       struct pipe_clip_state ucp;
       struct pipe_buffer *vertex_constants;
       struct pipe_buffer *fragment_constants;
 
       struct brw_blend_constant_color bcc;
+      struct brw_cc1 cc1_stencil_ref;
       struct brw_polygon_stipple bps;
       struct brw_cc_viewport ccv;
 
diff --git a/src/gallium/drivers/i965/brw_pipe_depth.c b/src/gallium/drivers/i965/brw_pipe_depth.c
index e010d76..b7000d5 100644
--- a/src/gallium/drivers/i965/brw_pipe_depth.c
+++ b/src/gallium/drivers/i965/brw_pipe_depth.c
@@ -72,7 +72,6 @@ static void create_bcc_state( struct brw_depth_stencil_state *zstencil,
 	 translate_stencil_op(templ->stencil[0].zfail_op);
       zstencil->cc0.stencil_pass_depth_pass_op =
 	 translate_stencil_op(templ->stencil[0].zpass_op);
-      zstencil->cc1.stencil_ref = templ->stencil[0].ref_value;
       zstencil->cc1.stencil_write_mask = templ->stencil[0].writemask;
       zstencil->cc1.stencil_test_mask = templ->stencil[0].valuemask;
 
@@ -86,7 +85,6 @@ static void create_bcc_state( struct brw_depth_stencil_state *zstencil,
 	    translate_stencil_op(templ->stencil[1].zfail_op);
 	 zstencil->cc0.bf_stencil_pass_depth_pass_op =
 	    translate_stencil_op(templ->stencil[1].zpass_op);
-	 zstencil->cc1.bf_stencil_ref = templ->stencil[1].ref_value;
 	 zstencil->cc2.bf_stencil_write_mask = templ->stencil[1].writemask;
 	 zstencil->cc2.bf_stencil_test_mask = templ->stencil[1].valuemask;
       }
@@ -159,9 +157,19 @@ static void brw_delete_depth_stencil_state(struct pipe_context *pipe,
    FREE(cso);
 }
 
+static void brw_set_stencil_ref(struct pipe_context *pipe,
+                                const struct pipe_stencil_ref *stencil_ref)
+{
+   struct brw_context *brw = brw_context(pipe);
+   brw->curr.cc1_stencil_ref.stencil_ref = stencil_ref->ref_value[0];
+   brw->curr.cc1_stencil_ref.bf_stencil_ref = stencil_ref->ref_value[1];
+
+   brw->state.dirty.mesa |= PIPE_NEW_DEPTH_STENCIL_ALPHA;
+}
 
 void brw_pipe_depth_stencil_init( struct brw_context *brw )
 {
+   brw->base.set_stencil_ref = brw_set_stencil_ref;
    brw->base.create_depth_stencil_alpha_state = brw_create_depth_stencil_state;
    brw->base.bind_depth_stencil_alpha_state = brw_bind_depth_stencil_state;
    brw->base.delete_depth_stencil_alpha_state = brw_delete_depth_stencil_state;