1/*
2 * Copyright (c) 2012-2015 Etnaviv Project
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, sub license,
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
12 * next paragraph) shall be included in all copies or substantial portions
13 * of the 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 NON-INFRINGEMENT. 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
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
21 * DEALINGS IN THE SOFTWARE.
22 *
23 * Authors:
24 *    Wladimir J. van der Laan <laanwj@gmail.com>
25 */
26
27#ifndef H_ETNAVIV_SHADER
28#define H_ETNAVIV_SHADER
29
30#include "mesa/main/config.h"
31#include "pipe/p_state.h"
32#include "util/disk_cache.h"
33
34struct etna_context;
35struct etna_shader_variant;
36struct nir_shader;
37
38struct etna_shader_key
39{
40   union {
41      struct {
42         /*
43          * Combined Vertex/Fragment shader parameters:
44          */
45
46         /* do we need to swap rb in frag color? */
47         unsigned frag_rb_swap : 1;
48         /* do we need to invert front facing value? */
49         unsigned front_ccw : 1;
50         /* do we need to replace glTexCoord.xy ? */
51         unsigned sprite_coord_enable : MAX_TEXTURE_COORD_UNITS;
52         unsigned sprite_coord_yinvert : 1;
53      };
54      uint32_t global;
55   };
56};
57
58static inline bool
59etna_shader_key_equal(struct etna_shader_key *a, struct etna_shader_key *b)
60{
61   STATIC_ASSERT(sizeof(struct etna_shader_key) <= sizeof(a->global));
62
63   return a->global == b->global;
64}
65
66struct etna_shader {
67   /* shader id (for debug): */
68   uint32_t id;
69   uint32_t variant_count;
70
71   struct tgsi_token *tokens;
72   struct nir_shader *nir;
73   const struct etna_specs *specs;
74   struct etna_compiler *compiler;
75
76   struct etna_shader_variant *variants;
77
78   cache_key cache_key;     /* shader disk-cache key */
79};
80
81bool
82etna_shader_link(struct etna_context *ctx);
83
84bool
85etna_shader_update_vertex(struct etna_context *ctx);
86
87struct etna_shader_variant *
88etna_shader_variant(struct etna_shader *shader, struct etna_shader_key key,
89                   struct pipe_debug_callback *debug);
90
91void
92etna_shader_init(struct pipe_context *pctx);
93
94#endif
95