xref: /netbsd-src/sys/external/bsd/drm2/dist/drm/amd/display/include/vector.h (revision 41ec02673d281bbb3d38e6c78504ce6e30c228c1)
1 /*	$NetBSD: vector.h,v 1.2 2021/12/18 23:45:07 riastradh Exp $	*/
2 
3 /*
4  * Copyright 2012-15 Advanced Micro Devices, Inc.
5  *
6  * Permission is hereby granted, free of charge, to any person obtaining a
7  * copy of this software and associated documentation files (the "Software"),
8  * to deal in the Software without restriction, including without limitation
9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10  * and/or sell copies of the Software, and to permit persons to whom the
11  * Software is furnished to do so, subject to the following conditions:
12  *
13  * The above copyright notice and this permission notice shall be included in
14  * all copies or substantial portions of the Software.
15  *
16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
19  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
20  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22  * OTHER DEALINGS IN THE SOFTWARE.
23  *
24  * Authors: AMD
25  *
26  */
27 
28 #ifndef __DAL_VECTOR_H__
29 #define __DAL_VECTOR_H__
30 
31 struct vector {
32 	uint8_t *container;
33 	uint32_t struct_size;
34 	uint32_t count;
35 	uint32_t capacity;
36 	struct dc_context *ctx;
37 };
38 
39 bool dal_vector_construct(
40 	struct vector *vector,
41 	struct dc_context *ctx,
42 	uint32_t capacity,
43 	uint32_t struct_size);
44 
45 struct vector *dal_vector_create(
46 	struct dc_context *ctx,
47 	uint32_t capacity,
48 	uint32_t struct_size);
49 
50 /* 'initial_value' is optional. If initial_value not supplied,
51  * each "structure" in the vector will contain zeros by default. */
52 struct vector *dal_vector_presized_create(
53 	struct dc_context *ctx,
54 	uint32_t size,
55 	void *initial_value,
56 	uint32_t struct_size);
57 
58 void dal_vector_destruct(
59 	struct vector *vector);
60 
61 void dal_vector_destroy(
62 	struct vector **vector);
63 
64 uint32_t dal_vector_get_count(
65 	const struct vector *vector);
66 
67 /* dal_vector_insert_at
68  * reallocate container if necessary
69  * then shell items at right and insert
70  * return if the container modified
71  * do not check that index belongs to container
72  * since the function is private and index is going to be calculated
73  * either with by function or as get_count+1 */
74 bool dal_vector_insert_at(
75 	struct vector *vector,
76 	const void *what,
77 	uint32_t position);
78 
79 bool dal_vector_append(
80 	struct vector *vector,
81 	const void *item);
82 
83 /* operator[] */
84 void *dal_vector_at_index(
85 	const struct vector *vector,
86 	uint32_t index);
87 
88 void dal_vector_set_at_index(
89 	const struct vector *vector,
90 	const void *what,
91 	uint32_t index);
92 
93 /* create a clone (copy) of a vector */
94 struct vector *dal_vector_clone(
95 	const struct vector *vector_other);
96 
97 /* dal_vector_remove_at_index
98  * Shifts elements on the right from remove position to the left,
99  * removing an element at position by overwrite means*/
100 bool dal_vector_remove_at_index(
101 	struct vector *vector,
102 	uint32_t index);
103 
104 uint32_t dal_vector_capacity(const struct vector *vector);
105 
106 bool dal_vector_reserve(struct vector *vector, uint32_t capacity);
107 
108 void dal_vector_clear(struct vector *vector);
109 
110 /***************************************************************************
111  * Macro definitions of TYPE-SAFE versions of vector set/get functions.
112  ***************************************************************************/
113 
114 #define DAL_VECTOR_INSERT_AT(vector_type, type_t) \
115 	static bool vector_type##_vector_insert_at( \
116 		struct vector *vector, \
117 		type_t what, \
118 		uint32_t position) \
119 { \
120 	return dal_vector_insert_at(vector, what, position); \
121 }
122 
123 #define DAL_VECTOR_APPEND(vector_type, type_t) \
124 	static bool vector_type##_vector_append( \
125 		struct vector *vector, \
126 		type_t item) \
127 { \
128 	return dal_vector_append(vector, item); \
129 }
130 
131 /* Note: "type_t" is the ONLY token accepted by "checkpatch.pl" and by
132  * "checkcommit" as *return type*.
133  * For uniformity reasons "type_t" is used for all type-safe macro
134  * definitions here. */
135 #define DAL_VECTOR_AT_INDEX(vector_type, type_t) \
136 	static type_t vector_type##_vector_at_index( \
137 		const struct vector *vector, \
138 		uint32_t index) \
139 { \
140 	return dal_vector_at_index(vector, index); \
141 }
142 
143 #define DAL_VECTOR_SET_AT_INDEX(vector_type, type_t) \
144 	static void vector_type##_vector_set_at_index( \
145 		const struct vector *vector, \
146 		type_t what, \
147 		uint32_t index) \
148 { \
149 	dal_vector_set_at_index(vector, what, index); \
150 }
151 
152 #endif /* __DAL_VECTOR_H__ */
153