glsl: add ir_emit_vertex and ir_end_primitive instruction types

These correspond to the EmitVertex and EndPrimitive functions in GLSL.

v2 (Paul Berry <[email protected]>): Add stub implementations of
new pure visitor functions to i965's vec4_visitor and fs_visitor
classes.

v3 (Paul Berry <[email protected]>): Rename classes to be more
consistent with the names used in the GL spec.

Reviewed-by: Ian Romanick <[email protected]>
Reviewed-by: Kenneth Graunke <[email protected]>

4 files changed, 28 insertions, 0 deletions

diff --git a/src/mesa/drivers/dri/i965/brw_fs.h b/src/mesa/drivers/dri/i965/brw_fs.h
index 0645fb75a78..370ab6c3386 100644
--- a/src/mesa/drivers/dri/i965/brw_fs.h
+++ b/src/mesa/drivers/dri/i965/brw_fs.h
@@ -238,6 +238,8 @@ public:
    void visit(ir_call *ir);
    void visit(ir_function *ir);
    void visit(ir_function_signature *ir);
+   void visit(ir_emit_vertex *);
+   void visit(ir_end_primitive *);
 
    void swizzle_result(ir_texture *ir, fs_reg orig_val, int sampler);
 
diff --git a/src/mesa/drivers/dri/i965/brw_fs_visitor.cpp b/src/mesa/drivers/dri/i965/brw_fs_visitor.cpp
index 15d1c6a6985..ee7728cb6ec 100644
--- a/src/mesa/drivers/dri/i965/brw_fs_visitor.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs_visitor.cpp
@@ -1991,6 +1991,18 @@ fs_visitor::visit(ir_function_signature *ir)
    (void)ir;
 }
 
+void
+fs_visitor::visit(ir_emit_vertex *)
+{
+   assert(!"not reached");
+}
+
+void
+fs_visitor::visit(ir_end_primitive *)
+{
+   assert(!"not reached");
+}
+
 fs_inst *
 fs_visitor::emit(fs_inst inst)
 {
diff --git a/src/mesa/drivers/dri/i965/brw_vec4.h b/src/mesa/drivers/dri/i965/brw_vec4.h
index 407d8b60485..3313a635f38 100644
--- a/src/mesa/drivers/dri/i965/brw_vec4.h
+++ b/src/mesa/drivers/dri/i965/brw_vec4.h
@@ -283,6 +283,8 @@ public:
    virtual void visit(ir_discard *);
    virtual void visit(ir_texture *);
    virtual void visit(ir_if *);
+   virtual void visit(ir_emit_vertex *);
+   virtual void visit(ir_end_primitive *);
    /*@}*/
 
    src_reg result;
diff --git a/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp b/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp
index 525485048cf..8d4a5d42dfc 100644
--- a/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp
+++ b/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp
@@ -2582,6 +2582,18 @@ vec4_visitor::visit(ir_if *ir)
 }
 
 void
+vec4_visitor::visit(ir_emit_vertex *)
+{
+   assert(!"not reached");
+}
+
+void
+vec4_visitor::visit(ir_end_primitive *)
+{
+   assert(!"not reached");
+}
+
+void
 vec4_visitor::emit_ndc_computation()
 {
    /* Get the position */