src/gallium/drivers/r600/sfn/sfn_shader_geometry.h

   1 /* -*- mesa-c++  -*-
   2  *
   3  * Copyright (c) 2019 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
  28 #ifndef SFN_GEOMETRYSHADERFROMNIR_H
  29 #define SFN_GEOMETRYSHADERFROMNIR_H
  30
  31 #include "sfn_shader_base.h"
  32
  33 namespace r600 {
  34
  35 class GeometryShaderFromNir : public ShaderFromNirProcessor
  36 {
  37 public:
  38    GeometryShaderFromNir(r600_pipe_shader *sh, r600_pipe_shader_selector& sel, const r600_shader_key& key);
  39    bool do_emit_load_deref(const nir_variable *in_var, nir_intrinsic_instr* instr) override;
  40    bool do_emit_store_deref(const nir_variable *out_var, nir_intrinsic_instr* instr) override;
  41    bool scan_sysvalue_access(nir_instr *instr) override;
  42
  43 private:
  44    struct ArrayDeref {
  45       const nir_variable *var;
  46       const nir_src *index;
  47    };
  48
  49    bool do_process_inputs(nir_variable *input) override;
  50    bool allocate_reserved_registers() override;
  51    bool do_process_outputs(nir_variable *output) override;
  52    bool emit_deref_instruction_override(nir_deref_instr* instr) override;
  53    bool emit_intrinsic_instruction_override(nir_intrinsic_instr* instr) override;
  54    bool emit_load_from_array(nir_intrinsic_instr* instr, const ArrayDeref& array_deref);
  55    bool emit_vertex(nir_intrinsic_instr* instr, bool cut);
  56    void emit_adj_fix();
  57
  58    void do_finalize() override;
  59
  60    r600_pipe_shader *m_pipe_shader;
  61    const pipe_stream_output_info *m_so_info;
  62
  63    std::array<PValue, 6> m_per_vertex_offsets;
  64    PValue m_primitive_id;
  65    PValue m_invocation_id;
  66    PValue m_export_base;
  67    bool m_first_vertex_emitted;
  68
  69    std::map<unsigned, ArrayDeref> m_in_array_deref;
  70    int  m_offset;
  71    int  m_next_input_ring_offset;
  72    r600_shader_key m_key;
  73    int m_num_clip_dist;
  74    unsigned m_cur_ring_output;
  75    bool m_gs_tri_strip_adj_fix;
  76 };
  77
  78 }
  79
  80 #endif // SFN_GEOMETRYSHADERFROMNIR_H