2 * Copyright © 2019 Intel Corporation
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, sublicense,
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:
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
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
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 DEALINGS
28 #include "overlay_params.h"
30 static enum overlay_param_position
31 parse_position(const char *str
)
33 if (!str
|| !strcmp(str
, "top-left"))
34 return LAYER_POSITION_TOP_LEFT
;
35 if (!strcmp(str
, "top-right"))
36 return LAYER_POSITION_TOP_RIGHT
;
37 if (!strcmp(str
, "bottom-left"))
38 return LAYER_POSITION_BOTTOM_LEFT
;
39 if (!strcmp(str
, "bottom-right"))
40 return LAYER_POSITION_BOTTOM_RIGHT
;
41 return LAYER_POSITION_TOP_LEFT
;
45 parse_help(const char *str
)
47 fprintf(stderr
, "Layer params using VK_LAYER_MESA_OVERLAY_CONFIG=\n");
48 #define OVERLAY_PARAM_BOOL(name) \
49 fprintf(stderr, "\t%s=0/1\n", #name);
50 #define OVERLAY_PARAM_CUSTOM(name)
52 #undef OVERLAY_PARAM_BOOL
53 #undef OVERLAY_PARAM_CUSTOM
54 fprintf(stderr
, "\tposition=\n"
58 "\t\tbottom-right\n");
63 static bool is_delimiter(char c
)
65 return c
== 0 || c
== ',' || c
== ':' || c
== ';' || c
== '=';
69 parse_string(const char *s
, char *out_param
, char *out_value
)
73 for (; !is_delimiter(*s
); s
++, out_param
++, i
++)
81 for (; !is_delimiter(*s
); s
++, out_value
++, i
++)
86 if (*s
&& is_delimiter(*s
)) {
92 fprintf(stderr
, "mesa-overlay: syntax error: unexpected '%c' (%i) while "
93 "parsing a string\n", *s
, *s
);
100 const char *overlay_param_names
[] = {
101 #define OVERLAY_PARAM_BOOL(name) #name,
102 #define OVERLAY_PARAM_CUSTOM(name)
104 #undef OVERLAY_PARAM_BOOL
105 #undef OVERLAY_PARAM_CUSTOM
109 parse_overlay_env(struct overlay_params
*params
,
113 char key
[256], value
[256];
115 memset(params
, 0, sizeof(*params
));
117 /* Visible by default */
118 params
->enabled
[OVERLAY_PARAM_ENABLED_fps
] = true;
119 params
->enabled
[OVERLAY_PARAM_ENABLED_frame_timing
] = true;
124 while ((num
= parse_string(env
, key
, value
)) != 0) {
127 #define OVERLAY_PARAM_BOOL(name) \
128 if (!strcmp(#name, key)) { \
129 params->enabled[OVERLAY_PARAM_ENABLED_##name] = strtol(value, NULL, 0); \
132 #define OVERLAY_PARAM_CUSTOM(name) \
133 if (!strcmp(#name, key)) { \
134 params->name = parse_##name(value); \
138 #undef OVERLAY_PARAM_BOOL
139 #undef OVERLAY_PARAM_CUSTOM
140 fprintf(stderr
, "Unknown option '%s'\n", key
);