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 "nir.h"
32 #include "pipe/p_state.h"
33 #include "util/disk_cache.h"
34 #include "util/u_queue.h"
35
36 struct etna_context;
37 struct etna_shader_variant;
38 struct nir_shader;
39
40 struct etna_shader_key
41 {
42 union {
43 struct {
44 /*
45 * Combined Vertex/Fragment shader parameters:
46 */
47
48 /* do we need to swap rb in frag color? */
49 unsigned frag_rb_swap : 1;
50 /* do we need to invert front facing value? */
51 unsigned front_ccw : 1;
52 /* do we need to replace glTexCoord.xy ? */
53 unsigned sprite_coord_enable : MAX_TEXTURE_COORD_UNITS;
54 unsigned sprite_coord_yinvert : 1;
55 /* do we need to lower sample_tex_compare */
56 unsigned has_sample_tex_compare : 1;
57 };
58 uint32_t global;
59 };
60
61 int num_texture_states;
62 nir_lower_tex_shadow_swizzle tex_swizzle[PIPE_MAX_SHADER_SAMPLER_VIEWS];
63 enum compare_func tex_compare_func[PIPE_MAX_SHADER_SAMPLER_VIEWS];
64 };
65
66 static inline bool
etna_shader_key_equal(struct etna_shader_key * a,struct etna_shader_key * b)67 etna_shader_key_equal(struct etna_shader_key *a, struct etna_shader_key *b)
68 {
69 /* slow-path if we need to check tex_{swizzle,compare_func} */
70 if (unlikely(a->has_sample_tex_compare || b->has_sample_tex_compare))
71 return memcmp(a, b, sizeof(struct etna_shader_key)) == 0;
72 else
73 return a->global == b->global;
74 }
75
76 struct etna_shader {
77 /* shader id (for debug): */
78 uint32_t id;
79 uint32_t variant_count;
80
81 struct tgsi_token *tokens;
82 struct nir_shader *nir;
83 const struct etna_specs *specs;
84 struct etna_compiler *compiler;
85
86 struct etna_shader_variant *variants;
87
88 cache_key cache_key; /* shader disk-cache key */
89
90 /* parallel shader compiles */
91 struct util_queue_fence ready;
92 };
93
94 bool
95 etna_shader_link(struct etna_context *ctx);
96
97 bool
98 etna_shader_update_vertex(struct etna_context *ctx);
99
100 struct etna_shader_variant *
101 etna_shader_variant(struct etna_shader *shader, struct etna_shader_key key,
102 struct util_debug_callback *debug);
103
104 void
105 etna_shader_init(struct pipe_context *pctx);
106
107 bool
108 etna_shader_screen_init(struct pipe_screen *pscreen);
109
110 void
111 etna_shader_screen_fini(struct pipe_screen *pscreen);
112
113 #endif
114