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 "pipe/p_state.h"
31
32struct etna_context;
33struct etna_shader_variant;
34
35struct etna_shader_key
36{
37   union {
38      struct {
39         /*
40          * Combined Vertex/Fragment shader parameters:
41          */
42
43         /* do we need to swap rb in frag color? */
44         unsigned frag_rb_swap : 1;
45      };
46      uint32_t global;
47   };
48};
49
50static inline bool
51etna_shader_key_equal(struct etna_shader_key *a, struct etna_shader_key *b)
52{
53   STATIC_ASSERT(sizeof(struct etna_shader_key) <= sizeof(a->global));
54
55   return a->global == b->global;
56}
57
58struct etna_shader {
59    /* shader id (for debug): */
60    uint32_t id;
61    uint32_t variant_count;
62
63    struct tgsi_token *tokens;
64    const struct etna_specs *specs;
65
66    struct etna_shader_variant *variants;
67};
68
69bool
70etna_shader_link(struct etna_context *ctx);
71
72bool
73etna_shader_update_vertex(struct etna_context *ctx);
74
75struct etna_shader_variant *
76etna_shader_variant(struct etna_shader *shader, struct etna_shader_key key,
77                   struct pipe_debug_callback *debug);
78
79void
80etna_shader_init(struct pipe_context *pctx);
81
82#endif
83