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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 * Scratch data used when compiling a GLSL geometry shader.
40 struct brw_gs_prog_key key
;
41 struct brw_gs_prog_data prog_data
;
42 struct brw_vue_map input_vue_map
;
44 struct brw_geometry_program
*gp
;
46 unsigned control_data_bits_per_vertex
;
47 unsigned control_data_header_size_bits
;
54 const unsigned *brw_gs_emit(struct brw_context
*brw
,
55 struct gl_shader_program
*prog
,
56 struct brw_gs_compile
*c
,
58 unsigned *final_assembly_size
);
67 class vec4_gs_visitor
: public vec4_visitor
70 vec4_gs_visitor(const struct brw_compiler
*compiler
,
72 struct brw_gs_compile
*c
,
73 struct gl_shader_program
*prog
,
76 int shader_time_index
);
79 virtual dst_reg
*make_reg_for_system_value(ir_variable
*ir
);
80 virtual void setup_payload();
81 virtual void emit_prolog();
82 virtual void emit_program_code();
83 virtual void emit_thread_end();
84 virtual void emit_urb_write_header(int mrf
);
85 virtual vec4_instruction
*emit_urb_write_opcode(bool complete
);
86 virtual int compute_array_stride(ir_dereference_array
*ir
);
87 virtual void visit(ir_emit_vertex
*);
88 virtual void visit(ir_end_primitive
*);
91 int setup_varying_inputs(int payload_reg
, int *attribute_map
,
92 int attributes_per_reg
);
93 void emit_control_data_bits();
94 void set_stream_control_data_bits(unsigned stream_id
);
97 src_reg control_data_bits
;
98 const struct brw_gs_compile
* const c
;
101 } /* namespace brw */
102 #endif /* __cplusplus */
104 #endif /* BRW_VEC4_GS_VISITOR_H */