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Add support for SDL_GAMECONTROLLERCONFIG environment variable

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This commit is contained in:
Iwan Timmer
2017-06-19 22:44:33 +02:00
parent c23d95f83c
commit 3e2c5b1789
3 changed files with 125 additions and 111 deletions
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221
src/input/mapping.c
View File

@@ -24,9 +24,116 @@
#include <stdbool.h>
#include <string.h>
struct mapping* mapping_parse(char* mapping) {
char* strpoint;
char* guid = strtok_r(mapping, ",", &strpoint);
char* name = strtok_r(NULL, ",", &strpoint);
if (guid == NULL || name == NULL)
return NULL;
struct mapping* map = malloc(sizeof(struct mapping));
if (map == NULL) {
fprintf(stderr, "Not enough memory");
exit(EXIT_FAILURE);
}
strncpy(map->guid, guid, sizeof(map->guid));
strncpy(map->name, name, sizeof(map->name));
char* option;
while ((option = strtok_r(NULL, ",", &strpoint)) != NULL) {
char *key = NULL, *value = NULL;
int ret;
if ((ret = sscanf(option, "%m[^:]:%ms", &key, &value)) == 2) {
int int_value, direction_value;
char flag = 0;
if (strcmp("platform", key) == 0)
strncpy(map->platform, value, sizeof(map->platform));
else if (sscanf(value, "b%d", &int_value) == 1) {
if (strcmp("a", key) == 0)
map->btn_a = int_value;
else if (strcmp("y", key) == 0)
map->btn_y = int_value;
else if (strcmp("x", key) == 0)
map->btn_x = int_value;
else if (strcmp("b", key) == 0)
map->btn_b = int_value;
else if (strcmp("back", key) == 0)
map->btn_back = int_value;
else if (strcmp("start", key) == 0)
map->btn_start = int_value;
else if (strcmp("guide", key) == 0)
map->btn_guide = int_value;
else if (strcmp("dpup", key) == 0)
map->btn_dpup = int_value;
else if (strcmp("dpdown", key) == 0)
map->btn_dpdown = int_value;
else if (strcmp("dpleft", key) == 0)
map->btn_dpleft = int_value;
else if (strcmp("dpright", key) == 0)
map->btn_dpright = int_value;
else if (strcmp("leftstick", key) == 0)
map->btn_leftstick = int_value;
else if (strcmp("rightstick", key) == 0)
map->btn_rightstick = int_value;
else if (strcmp("leftshoulder", key) == 0)
map->btn_leftshoulder = int_value;
else if (strcmp("rightshoulder", key) == 0)
map->btn_rightshoulder = int_value;
else if (strcmp("lefttrigger", key) == 0)
map->btn_lefttrigger = int_value;
else if (strcmp("righttrigger", key) == 0)
map->btn_righttrigger = int_value;
} else if (sscanf(value, "a%d%c", &int_value, &flag) >= 1) {
if (strcmp("leftx", key) == 0) {
map->abs_leftx = int_value;
map->reverse_leftx = flag == '~';
} else if (strcmp("lefty", key) == 0) {
map->abs_lefty = int_value;
map->reverse_lefty = flag == '~';
} else if (strcmp("rightx", key) == 0) {
map->abs_rightx = int_value;
map->reverse_rightx = flag == '~';
} else if (strcmp("righty", key) == 0) {
map->abs_righty = int_value;
map->reverse_righty = flag == '~';
} else if (strcmp("lefttrigger", key) == 0)
map->abs_lefttrigger = int_value;
else if (strcmp("righttrigger", key) == 0)
map->abs_righttrigger = int_value;
} else if (sscanf(value, "h%d.%d", &int_value, &direction_value) == 2) {
if (strcmp("dpright", key) == 0) {
map->hat_dpright = int_value;
map->hat_dir_dpright = direction_value;
} else if (strcmp("dpleft", key) == 0) {
map->hat_dpleft = int_value;
map->hat_dir_dpleft = direction_value;
} else if (strcmp("dpup", key) == 0) {
map->hat_dpup = int_value;
map->hat_dir_dpup = direction_value;
} else if (strcmp("dpdown", key) == 0) {
map->hat_dpdown = int_value;
map->hat_dir_dpdown = direction_value;
}
} else
fprintf(stderr, "Can't map (%s)\n", option);
} else if (ret == 0 && option[0] != '\n')
fprintf(stderr, "Can't map (%s)\n", option);
if (key != NULL)
free(key);
if (value != NULL)
free(value);
}
map->guid[32] = '\0';
map->name[256] = '\0';
map->platform[32] = '\0';
return map;
}
struct mapping* mapping_load(char* fileName, bool verbose) {
struct mapping* mappings = NULL;
struct mapping* map = NULL;
FILE* fd = fopen(fileName, "r");
if (fd == NULL) {
fprintf(stderr, "Can't open mapping file: %s\n", fileName);
@@ -37,115 +144,11 @@ struct mapping* mapping_load(char* fileName, bool verbose) {
char *line = NULL;
size_t len = 0;
while (getline(&line, &len, fd) != -1) {
char* strpoint;
char* guid = strtok_r(line, ",", &strpoint);
char* name = strtok_r(NULL, ",", &strpoint);
if (guid == NULL || name == NULL)
continue;
struct mapping* newmap = malloc(sizeof(struct mapping));
if (newmap == NULL) {
fprintf(stderr, "Not enough memory");
exit(EXIT_FAILURE);
} else if (mappings == NULL)
mappings = newmap;
else
map->next = newmap;
map = newmap;
strncpy(map->guid, guid, sizeof(map->guid));
strncpy(map->name, name, sizeof(map->name));
char* option;
while ((option = strtok_r(NULL, ",", &strpoint)) != NULL) {
char *key = NULL, *value = NULL;
int ret;
if ((ret = sscanf(option, "%m[^:]:%ms", &key, &value)) == 2) {
int int_value, direction_value;
char flag = 0;
if (strcmp("platform", key) == 0)
strncpy(map->platform, value, sizeof(map->platform));
else if (sscanf(value, "b%d", &int_value) == 1) {
if (strcmp("a", key) == 0)
map->btn_a = int_value;
else if (strcmp("y", key) == 0)
map->btn_y = int_value;
else if (strcmp("x", key) == 0)
map->btn_x = int_value;
else if (strcmp("b", key) == 0)
map->btn_b = int_value;
else if (strcmp("back", key) == 0)
map->btn_back = int_value;
else if (strcmp("start", key) == 0)
map->btn_start = int_value;
else if (strcmp("guide", key) == 0)
map->btn_guide = int_value;
else if (strcmp("dpup", key) == 0)
map->btn_dpup = int_value;
else if (strcmp("dpdown", key) == 0)
map->btn_dpdown = int_value;
else if (strcmp("dpleft", key) == 0)
map->btn_dpleft = int_value;
else if (strcmp("dpright", key) == 0)
map->btn_dpright = int_value;
else if (strcmp("leftstick", key) == 0)
map->btn_leftstick = int_value;
else if (strcmp("rightstick", key) == 0)
map->btn_rightstick = int_value;
else if (strcmp("leftshoulder", key) == 0)
map->btn_leftshoulder = int_value;
else if (strcmp("rightshoulder", key) == 0)
map->btn_rightshoulder = int_value;
else if (strcmp("lefttrigger", key) == 0)
map->btn_lefttrigger = int_value;
else if (strcmp("righttrigger", key) == 0)
map->btn_righttrigger = int_value;
} else if (sscanf(value, "a%d%c", &int_value, &flag) >= 1) {
if (strcmp("leftx", key) == 0) {
map->abs_leftx = int_value;
map->reverse_leftx = flag == '~';
} else if (strcmp("lefty", key) == 0) {
map->abs_lefty = int_value;
map->reverse_lefty = flag == '~';
} else if (strcmp("rightx", key) == 0) {
map->abs_rightx = int_value;
map->reverse_rightx = flag == '~';
} else if (strcmp("righty", key) == 0) {
map->abs_righty = int_value;
map->reverse_righty = flag == '~';
} else if (strcmp("lefttrigger", key) == 0)
map->abs_lefttrigger = int_value;
else if (strcmp("righttrigger", key) == 0)
map->abs_righttrigger = int_value;
} else if (sscanf(value, "h%d.%d", &int_value, &direction_value) == 2) {
if (strcmp("dpright", key) == 0) {
map->hat_dpright = int_value;
map->hat_dir_dpright = direction_value;
} else if (strcmp("dpleft", key) == 0) {
map->hat_dpleft = int_value;
map->hat_dir_dpleft = direction_value;
} else if (strcmp("dpup", key) == 0) {
map->hat_dpup = int_value;
map->hat_dir_dpup = direction_value;
} else if (strcmp("dpdown", key) == 0) {
map->hat_dpdown = int_value;
map->hat_dir_dpdown = direction_value;
}
} else
fprintf(stderr, "Can't map (%s)\n", option);
} else if (ret == 0 && option[0] != '\n')
fprintf(stderr, "Can't map (%s)\n", option);
if (key != NULL)
free(key);
if (value != NULL)
free(value);
struct mapping* map = mapping_parse(line);
if (map) {
map->next = mappings;
mappings = map;
}
map->guid[32] = '\0';
map->name[256] = '\0';
map->platform[32] = '\0';
}
free(line);

1
src/input/mapping.h
View File

@@ -47,4 +47,5 @@ struct mapping {
struct mapping* next;
};
struct mapping* mapping_parse(char* mapping);
struct mapping* mapping_load(char* fileName, bool verbose);

14
src/main.c
View File

@@ -252,11 +252,21 @@ int main(int argc, char* argv[]) {
config.stream.supportsHevc = config.codec != CODEC_H264 && (config.codec == CODEC_HEVC || platform_supports_hevc(system));
if (IS_EMBEDDED(system)) {
if (config.mapping == NULL) {
char* mapping_env = getenv("SDL_GAMECONTROLLERCONFIG");
if (config.mapping == NULL && mapping_env == NULL) {
fprintf(stderr, "Please specify mapping file as default mapping could not be found.\n");
exit(-1);
}
struct mapping* mappings = mapping_load(config.mapping, config.debug_level > 0);
struct mapping* mappings;
if (config.mapping != NULL)
mappings = mapping_load(config.mapping, config.debug_level > 0);
if (mapping_env != NULL) {
struct mapping* map = mapping_parse(mapping_env);
map->next = mappings;
mappings = map;
}
for (int i=0;i<config.inputsCount;i++) {
if (config.debug_level > 0)