1/* -*- mesa-c++  -*-
2 *
3 * Copyright (c) 2018-2019 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#ifndef SFN_EMITTEXINSTRUCTION_H
28#define SFN_EMITTEXINSTRUCTION_H
29
30#include "sfn_emitinstruction.h"
31#include "sfn_instruction_tex.h"
32
33namespace r600  {
34
35class EmitTexInstruction : public EmitInstruction
36{
37public:
38   EmitTexInstruction(ShaderFromNirProcessor& processor);
39
40private:
41   struct TexInputs {
42      TexInputs();
43      const nir_variable *sampler_deref;
44      const nir_variable *texture_deref;
45      GPRVector coord;
46      PValue bias;
47      PValue comperator;
48      PValue lod;
49      GPRVector ddx;
50      GPRVector ddy;
51      nir_src *offset;
52      PValue gather_comp;
53      PValue ms_index;
54      PValue sampler_offset;
55      PValue texture_offset;
56   };
57
58   bool emit_tex_tex(nir_tex_instr* instr, TexInputs& src);
59
60   bool emit_tex_txf(nir_tex_instr* instr, TexInputs &src);
61   bool emit_tex_txb(nir_tex_instr* instr, TexInputs& src);
62   bool emit_tex_txd(nir_tex_instr* instr, TexInputs& src);
63   bool emit_tex_txl(nir_tex_instr* instr, TexInputs& src);
64   bool emit_tex_txs(nir_tex_instr* instr, TexInputs& src,
65                     const std::array<int, 4> &dest_swz);
66   bool emit_tex_texture_samples(nir_tex_instr* instr, TexInputs& src,
67                                 const std::array<int, 4> &dest_swz);
68   bool emit_tex_lod(nir_tex_instr* instr, TexInputs& src);
69   bool emit_tex_tg4(nir_tex_instr* instr, TexInputs& src);
70   bool emit_tex_txf_ms(nir_tex_instr* instr, TexInputs& src);
71   bool emit_buf_txf(nir_tex_instr* instr, TexInputs& src);
72
73   bool get_inputs(const nir_tex_instr& instr, TexInputs &src);
74
75   void set_rect_coordinate_flags(nir_tex_instr* instr, TexInstruction* ir) const;
76
77   bool do_emit(nir_instr* instr) override;
78
79   GPRVector make_dest(nir_tex_instr& instr);
80   GPRVector make_dest(nir_tex_instr &instr, const std::array<int, 4> &swizzle);
81
82   void set_offsets(TexInstruction* ir, nir_src *offset);
83   void handle_array_index(const nir_tex_instr& instr, const GPRVector &src, TexInstruction* ir);
84
85   struct SamplerId {
86      int id;
87      bool indirect;
88   };
89
90   SamplerId get_sampler_id(int sampler_id, const nir_variable *deref);
91
92};
93
94}
95
96#endif // SFN_EMITTEXINSTRUCTION_H
97