2 * Copyright © 2013 Intel Corporation
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
21 * DEALINGS IN THE SOFTWARE.
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
38 class vec4_gs_visitor
: public vec4_visitor
41 vec4_gs_visitor(const struct brw_compiler
*compiler
,
43 struct brw_gs_compile
*c
,
44 struct brw_gs_prog_data
*prog_data
,
45 const nir_shader
*shader
,
48 int shader_time_index
);
50 virtual void nir_setup_inputs();
51 virtual void nir_setup_system_value_intrinsic(nir_intrinsic_instr
*instr
);
54 virtual dst_reg
*make_reg_for_system_value(int location
);
55 virtual void setup_payload();
56 virtual void emit_prolog();
57 virtual void emit_thread_end();
58 virtual void emit_urb_write_header(int mrf
);
59 virtual vec4_instruction
*emit_urb_write_opcode(bool complete
);
60 virtual void gs_emit_vertex(int stream_id
);
61 virtual void gs_end_primitive();
62 virtual void nir_emit_intrinsic(nir_intrinsic_instr
*instr
);
65 int setup_varying_inputs(int payload_reg
, int *attribute_map
,
66 int attributes_per_reg
);
67 void emit_control_data_bits();
68 void set_stream_control_data_bits(unsigned stream_id
);
71 src_reg control_data_bits
;
72 const struct brw_gs_compile
* const c
;
73 struct brw_gs_prog_data
* const gs_prog_data
;
77 #endif /* __cplusplus */
79 #endif /* BRW_VEC4_GS_VISITOR_H */