1/*
2 * Copyright (C) 2018 Jonathan Marek <jonathan@marek.ca>
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 FROM,
20 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
21 * SOFTWARE.
22 *
23 * Authors:
24 *    Jonathan Marek <jonathan@marek.ca>
25 */
26
27#ifndef IR2_H_
28#define IR2_H_
29
30#include "compiler/nir/nir.h"
31#include "pipe/p_context.h"
32
33struct ir2_fetch_info {
34   /* dword offset of the fetch instruction */
35   uint16_t offset;
36   union {
37      /* swizzle to merge with tgsi swizzle */
38      struct {
39         uint16_t dst_swiz;
40      } vtx;
41      /* sampler id to patch const_idx */
42      struct {
43         uint16_t samp_id;
44         uint8_t src_swiz;
45      } tex;
46   };
47};
48
49struct ir2_shader_info {
50   /* compiler shader */
51   uint32_t *dwords;
52
53   /* size of the compiled shader in dwords */
54   uint16_t sizedwords;
55
56   /* highest GPR # used by shader */
57   int8_t max_reg;
58
59   /* offset in dwords of first MEMORY export CF (for a20x hw binning) */
60   int16_t mem_export_ptr;
61
62   /* fetch instruction info for patching */
63   uint16_t num_fetch_instrs;
64   struct ir2_fetch_info fetch_info[64];
65};
66
67struct ir2_frag_linkage {
68   unsigned inputs_count;
69   struct {
70      uint8_t slot;
71      uint8_t ncomp;
72   } inputs[16];
73
74   /* driver_location of fragcoord.zw, -1 if not used */
75   int fragcoord;
76};
77
78struct ir2_shader_variant {
79   struct ir2_shader_info info;
80   struct ir2_frag_linkage f;
81};
82
83struct fd2_shader_stateobj;
84struct tgsi_token;
85
86void ir2_compile(struct fd2_shader_stateobj *so, unsigned variant,
87                 struct fd2_shader_stateobj *fp);
88
89struct nir_shader *ir2_tgsi_to_nir(const struct tgsi_token *tokens,
90                                   struct pipe_screen *screen);
91
92const nir_shader_compiler_options *ir2_get_compiler_options(void);
93
94int ir2_optimize_nir(nir_shader *s, bool lower);
95
96#endif /* IR2_H_ */
97