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
32 struct etna_context;
33 struct etna_shader_variant;
34
35 struct 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
50 static inline bool
etna_shader_key_equal(struct etna_shader_key * a,struct etna_shader_key * b)51 etna_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
58 struct 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
69 bool
70 etna_shader_link(struct etna_context *ctx);
71
72 bool
73 etna_shader_update_vertex(struct etna_context *ctx);
74
75 struct etna_shader_variant *
76 etna_shader_variant(struct etna_shader *shader, struct etna_shader_key key,
77 struct pipe_debug_callback *debug);
78
79 void
80 etna_shader_init(struct pipe_context *pctx);
81
82 #endif
83