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 40 private: 41 bool do_scan_instruction(nir_instr *instr) override; 42 int do_allocate_reserved_registers() override; 43 44 bool process_stage_intrinsic(nir_intrinsic_instr *intr) override; 45 void do_get_shader_info(r600_shader *sh_info) override; 46 bool store_tess_factor(nir_intrinsic_instr *instr); 47 load_input(UNUSED nir_intrinsic_instr * intr)48 bool load_input(UNUSED nir_intrinsic_instr *intr) override 49 { 50 unreachable("load_input must be lowered in TCS"); 51 }; store_output(UNUSED nir_intrinsic_instr * intr)52 bool store_output(UNUSED nir_intrinsic_instr *intr) override 53 { 54 unreachable("load_output must be lowered in TCS"); 55 }; 56 57 bool read_prop(std::istream& is) override; 58 void do_print_properties(std::ostream& os) const override; 59 60 PRegister m_tess_factor_base; 61 PRegister m_rel_patch_id; 62 PRegister m_invocation_id; 63 PRegister m_primitive_id; 64 65 unsigned m_tcs_prim_mode{0}; 66 }; 67 68 class TESShader : public VertexStageShader { 69 public: 70 TESShader(const pipe_stream_output_info *so_info, 71 const r600_shader *gs_shader, 72 const r600_shader_key& key); 73 74 private: 75 bool do_scan_instruction(nir_instr *instr) override; 76 int do_allocate_reserved_registers() override; 77 78 bool process_stage_intrinsic(nir_intrinsic_instr *intr) override; 79 void do_get_shader_info(r600_shader *sh_info) override; 80 load_input(UNUSED nir_intrinsic_instr * intr)81 bool load_input(UNUSED nir_intrinsic_instr *intr) override 82 { 83 unreachable("load_input must be lowered in TES"); 84 }; store_output(UNUSED nir_intrinsic_instr * intr)85 bool store_output(UNUSED nir_intrinsic_instr *intr) override 86 { 87 unreachable("load_output must be lowered in TES"); 88 }; 89 90 bool read_prop(std::istream& is) override; 91 void do_print_properties(std::ostream& os) const override; 92 93 void do_finalize() override; 94 95 PRegister m_tess_coord[2] = {nullptr, nullptr}; 96 PRegister m_rel_patch_id{nullptr}; 97 PRegister m_primitive_id{nullptr}; 98 99 VertexExportStage *m_export_processor{nullptr}; 100 101 int m_tcs_vertices_out{0}; 102 bool m_vs_as_gs_a{false}; 103 bool m_tes_as_es{false}; 104 }; 105 106 } // namespace r600 107 108 #endif // TCS_H 109