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1 /*
2  * Copyright © 2022 Imagination Technologies Ltd.
3  *
4  * Permission is hereby granted, free of charge, to any person obtaining a copy
5  * of this software and associated documentation files (the "Software"), to deal
6  * in the Software without restriction, including without limitation the rights
7  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8  * copies of the Software, and to permit persons to whom the Software is
9  * 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 THE
18  * 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 
24 #ifndef ROGUE_SHADER_H
25 #define ROGUE_SHADER_H
26 
27 #include <stdbool.h>
28 #include <stddef.h>
29 
30 #include "compiler/shader_enums.h"
31 #include "rogue_instr.h"
32 #include "rogue_operand.h"
33 #include "rogue_util.h"
34 #include "util/list.h"
35 #include "util/macros.h"
36 
37 struct rogue_build_ctx;
38 struct rogue_ra;
39 
40 /**
41  * \brief Shader description.
42  */
43 struct rogue_shader {
44    gl_shader_stage stage; /** Shader stage. */
45 
46    struct list_head instr_list; /** Instructions linked list. */
47 
48    struct rogue_build_ctx *ctx;
49    struct rogue_ra *ra;
50 
51    bool drc_used[ROGUE_NUM_DRCS];
52 };
53 
54 /* Shader instruction list iterators and helpers. */
55 #define foreach_instr(__instr, __list) \
56    list_for_each_entry (struct rogue_instr, __instr, __list, node)
57 #define foreach_instr_rev(__instr, __list) \
58    list_for_each_entry_rev (struct rogue_instr, __instr, __list, node)
59 #define foreach_instr_safe(__instr, __list) \
60    list_for_each_entry_safe (struct rogue_instr, __instr, __list, node)
61 
62 #define instr_first_entry(__list) \
63    list_first_entry(__list, struct rogue_instr, node)
64 #define instr_last_entry(__list) \
65    list_last_entry(__list, struct rogue_instr, node)
66 
67 size_t rogue_shader_instr_count_type(const struct rogue_shader *shader,
68                                      enum rogue_opcode opcode);
69 
70 PUBLIC
71 struct rogue_shader *rogue_shader_create(struct rogue_build_ctx *ctx,
72                                          gl_shader_stage stage);
73 
74 PUBLIC
75 struct rogue_instr *rogue_shader_insert(struct rogue_shader *shader,
76                                         enum rogue_opcode opcode);
77 
78 size_t rogue_acquire_drc(struct rogue_shader *shader);
79 void rogue_release_drc(struct rogue_shader *shader, size_t drc);
80 
81 #endif /* ROGUE_SHADER_H */
82