1 /* -*- mesa-c++ -*- 2 * 3 * Copyright (c) 2022 Collabora LTD 4 * 5 * Author: Gert Wollny <gert.wollny@collabora.com> 6 * 7 * Permission is hereby granted, free of charge, to any person obtaining a 8 * copy of this software and associated documentation files (the "Software"), 9 * to deal in the Software without restriction, including without limitation 10 * on the rights to use, copy, modify, merge, publish, distribute, sub 11 * license, and/or sell copies of the Software, and to permit persons to whom 12 * the Software is furnished to do so, subject to the following conditions: 13 * 14 * The above copyright notice and this permission notice (including the next 15 * paragraph) shall be included in all copies or substantial portions of the 16 * Software. 17 * 18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 20 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL 21 * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM, 22 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR 23 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE 24 * USE OR OTHER DEALINGS IN THE SOFTWARE. 25 */ 26 27 #ifndef SFN_TESS_SHADER_H 28 #define SFN_TESS_SHADER_H 29 30 #include "sfn_shader_vs.h" 31 32 namespace r600 { 33 34 class VertexExportStage; 35 36 class TCSShader : public Shader { 37 public: 38 TCSShader(const r600_shader_key& key); 39 private: 40 bool do_scan_instruction(nir_instr *instr) override; 41 int do_allocate_reserved_registers() override; 42 43 bool process_stage_intrinsic(nir_intrinsic_instr *intr) override; 44 void do_get_shader_info(r600_shader *sh_info) override; 45 bool store_tess_factor(nir_intrinsic_instr* instr); 46 load_input(nir_intrinsic_instr * intr)47 bool load_input(nir_intrinsic_instr *intr) override { 48 unreachable("load_input must be lowered in TCS"); 49 }; store_output(nir_intrinsic_instr * intr)50 bool store_output(nir_intrinsic_instr *intr) override { 51 unreachable("load_output must be lowered in TCS"); 52 }; 53 54 bool read_prop(std::istream& is) override; 55 void do_print_properties(std::ostream& os) const override; 56 57 PRegister m_tess_factor_base; 58 PRegister m_rel_patch_id; 59 PRegister m_invocation_id; 60 PRegister m_primitive_id; 61 62 unsigned m_tcs_prim_mode{0}; 63 }; 64 65 class TESShader : public VertexStageShader { 66 public: 67 TESShader(const pipe_stream_output_info *so_info, const r600_shader *gs_shader, 68 const r600_shader_key& key); 69 private: 70 bool do_scan_instruction(nir_instr *instr) override; 71 int do_allocate_reserved_registers() override; 72 73 bool process_stage_intrinsic(nir_intrinsic_instr *intr) override; 74 void do_get_shader_info(r600_shader *sh_info) override; 75 load_input(UNUSED nir_intrinsic_instr * intr)76 bool load_input(UNUSED nir_intrinsic_instr *intr) override { 77 unreachable("load_input must be lowered in TES"); 78 }; store_output(UNUSED nir_intrinsic_instr * intr)79 bool store_output(UNUSED nir_intrinsic_instr *intr) override { 80 unreachable("load_output must be lowered in TES"); 81 }; 82 83 bool read_prop(std::istream& is) override; 84 void do_print_properties(std::ostream& os) const override; 85 86 void do_finalize() override; 87 88 PRegister m_tess_coord[2]= {nullptr, nullptr}; 89 PRegister m_rel_patch_id{nullptr}; 90 PRegister m_primitive_id{nullptr}; 91 92 VertexExportStage *m_export_processor{nullptr}; 93 94 int m_tcs_vertices_out{0}; 95 bool m_vs_as_gs_a{false}; 96 bool m_tes_as_es{false}; 97 }; 98 99 100 } 101 102 #endif // TCS_H 103