1 /* 2 * Copyright © 2013 Intel Corporation 3 * 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: 10 * 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 13 * Software. 14 * 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. 22 */ 23 24 /** 25 * \file brw_vec4_tes.h 26 * 27 * The vec4 mode tessellation evaluation shader compiler backend. 28 */ 29 30 #ifndef BRW_VEC4_TES_H 31 #define BRW_VEC4_TES_H 32 33 #include "brw_vec4.h" 34 35 #ifdef __cplusplus 36 namespace brw { 37 38 class vec4_tes_visitor : public vec4_visitor 39 { 40 public: 41 vec4_tes_visitor(const struct brw_compiler *compiler, 42 void *log_data, 43 const struct brw_tes_prog_key *key, 44 struct brw_tes_prog_data *prog_data, 45 const nir_shader *nir, 46 void *mem_ctx, 47 int shader_time_index); 48 49 protected: 50 virtual dst_reg *make_reg_for_system_value(int location); 51 virtual void nir_setup_system_value_intrinsic(nir_intrinsic_instr *instr); 52 virtual void nir_emit_intrinsic(nir_intrinsic_instr *instr); 53 54 virtual void setup_payload(); 55 virtual void emit_prolog(); 56 virtual void emit_thread_end(); 57 58 virtual void emit_urb_write_header(int mrf); 59 virtual vec4_instruction *emit_urb_write_opcode(bool complete); 60 61 private: 62 src_reg input_read_header; 63 }; 64 65 } /* namespace brw */ 66 #endif /* __cplusplus */ 67 68 #endif /* BRW_VEC4_TES_H */ 69