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25 * \file brw_vec4_gs_visitor.h
27 * Geometry-shader-specific code derived from the vec4_visitor class.
30 #ifndef BRW_VEC4_GS_VISITOR_H
31 #define BRW_VEC4_GS_VISITOR_H
36 struct brw_gs_prog_key
38 struct brw_vec4_prog_key base
;
40 struct brw_vue_map input_vue_map
;
45 * Scratch data used when compiling a GLSL geometry shader.
49 struct brw_vec4_compile base
;
50 struct brw_gs_prog_key key
;
51 struct brw_gs_prog_data prog_data
;
53 struct brw_geometry_program
*gp
;
55 unsigned control_data_bits_per_vertex
;
56 unsigned control_data_header_size_bits
;
63 const unsigned *brw_gs_emit(struct brw_context
*brw
,
64 struct gl_shader_program
*prog
,
65 struct brw_gs_compile
*c
,
67 unsigned *final_assembly_size
);
76 class vec4_gs_visitor
: public vec4_visitor
79 vec4_gs_visitor(struct brw_context
*brw
,
80 struct brw_gs_compile
*c
,
81 struct gl_shader_program
*prog
,
82 struct brw_shader
*shader
,
86 virtual dst_reg
*make_reg_for_system_value(ir_variable
*ir
);
87 virtual void setup_payload();
88 virtual void emit_prolog();
89 virtual void emit_program_code();
90 virtual void emit_thread_end();
91 virtual void emit_urb_write_header(int mrf
);
92 virtual vec4_instruction
*emit_urb_write_opcode(bool complete
);
93 virtual int compute_array_stride(ir_dereference_array
*ir
);
94 virtual void visit(ir_emit_vertex
*);
95 virtual void visit(ir_end_primitive
*);
98 int setup_varying_inputs(int payload_reg
, int *attribute_map
);
100 src_reg vertex_count
;
101 const struct brw_gs_compile
* const c
;
104 } /* namespace brw */
105 #endif /* __cplusplus */
107 #endif /* BRW_VEC4_GS_VISITOR_H */