diff options
Diffstat (limited to 'src/cg-icc.c')
| -rw-r--r-- | src/cg-icc.c | 156 |
1 files changed, 139 insertions, 17 deletions
diff --git a/src/cg-icc.c b/src/cg-icc.c index 60fc696..0ed8d3e 100644 --- a/src/cg-icc.c +++ b/src/cg-icc.c @@ -46,6 +46,11 @@ */ #define VCGT_TAG 0x76636774L +/** + * The filename of the configuration file + */ +#define ICCTAB "icctab" + /** @@ -195,6 +200,115 @@ int handle_opt(char* opt, char* arg) /** + * Populate `crtc_icc_keys` and `crtc_icc_value` + * + * @path fd File descriptor for the ICC profile table + * @path dirname The dirname of the ICC profile table + * @return Zero on success, -1 on error + */ +static int load_icc_table(int fd, const char *dirname) +{ + FILE *fp; + ssize_t len; + size_t lineno = 1, size = 0; + char *p, *q, *line = NULL; + int saved_errno; + size_t ptr = 0, siz = 0; + void *new; + size_t dirname_len = strlen(dirname); + fp = fdopen(fd, "rb"); + if (fp == NULL) + return -1; + for (; len = getline(&line, &size, fp), len >= 0; lineno++) + { + if (len && line[len - 1] == '\n') + line[--len] = '\0'; + p = line + strspn(line, " \t"); + if (!*p || (*p == '#')) + continue; + q = p + strspn(p, "0123456789abcdefABCDEF"); + if ((*q != ' ' && *q != '\t')) + { + fprintf(stderr, "%s: warning: line %zu is malformated in %s/%s\n", + argv0, lineno, dirname, ICCTAB); + continue; + } + *q = '\0'; + if ((size_t)(q - p) != 256) + fprintf(stderr, "%s: warning: EDID on line %zu in %s/%s looks to be of wrong length: %s\n", + argv0, lineno, dirname, ICCTAB, p); + q++; + q += strspn(p, " \t"); + if (!*q) + { + fprintf(stderr, "%s: warning: line %zu is malformated in %s/%s\n", + argv0, lineno, dirname, ICCTAB); + continue; + } + if (strchr(" \t", strchr(q, '\0')[-1])) + fprintf(stderr, "%s: warning: filename on line %zu in %s/%s ends with white space: %s\n", + argv0, lineno, dirname, ICCTAB, q); + if (ptr == siz) + { + new = realloc(crtc_icc_keys, (siz + 5) * sizeof(*crtc_icc_keys)); + if (new == NULL) + goto fail; + crtc_icc_keys = new; + new = realloc(crtc_icc_values, (siz + 5) * sizeof(*crtc_icc_values)); + if (new == NULL) + goto fail; + crtc_icc_values = new; + siz += 4; + } + crtc_icc_values[ptr] = malloc((*q == '/' ? 1 : dirname_len + sizeof("/")) + strlen(q)); + if (crtc_icc_values[ptr] == NULL) + goto fail; + if (*q == '/') + strcpy(crtc_icc_values[ptr], q); + else + stpcpy(stpcpy(stpcpy(crtc_icc_values[ptr], dirname), "/"), q); + crtc_icc_keys[ptr] = malloc(strlen(p) + 1); + if (crtc_icc_keys[ptr] == NULL) + { + ptr++; + goto fail; + } + strcpy(crtc_icc_keys[ptr], p); + ptr++; + } + if (ferror(fp)) + goto fail; + if (!ptr) + { + crtc_icc_keys = calloc(1, sizeof(*crtc_icc_keys)); + if (crtc_icc_keys == NULL) + goto fail; + } + crtc_icc_keys[ptr] = NULL; + if (!ptr) + { + crtc_icc_values = calloc(1, sizeof(*crtc_icc_values)); + if (crtc_icc_values == NULL) + goto fail; + } + crtc_icc_values[ptr] = NULL; + fclose(fp); + free(line); + return 0; + fail: + saved_errno = errno; + if (crtc_icc_keys != NULL) + crtc_icc_keys[ptr] = NULL; + if (crtc_icc_values != NULL) + crtc_icc_values[ptr] = NULL; + fclose(fp); + free(line); + errno = saved_errno; + return -1; +} + + +/** * This function is called after the last * call to `handle_opt` * @@ -223,7 +337,7 @@ int handle_args(int argc, char* argv[], char* method, char* site, usage(); icc_pathname = *argv; memset(&uniramps, 0, sizeof(uniramps)); - if (icc_pathname != NULL) + if (icc_pathname == NULL) { pw = getpwuid(getuid()); if ((pw == NULL) || (pw->pw_dir == NULL)) @@ -242,14 +356,14 @@ int handle_args(int argc, char* argv[], char* method, char* site, if (confdirfd < 0) goto fail; - free(path), path = NULL; - - fd = openat(confdirfd, "icc", O_RDONLY); + fd = openat(confdirfd, ICCTAB, O_RDONLY); if (fd < 0) goto fail; - /* TODO read */ + if (load_icc_table(fd, path) < 0) + goto fail; + free(path), path = NULL; close(fd), fd = -1; } return 0; @@ -604,7 +718,14 @@ static int load_icc(const char* file, libcoopgamma_ramps_t* ramps, libcoopgamma_ fd = open(file, O_RDONLY); if (fd < 0) - goto fail; + { + if (errno == ENOENT) + { + fprintf(stderr, "%s: %s: %s\n", argv0, strerror(ENOENT), file); + errno = 0; + } + goto fail; + } for (;;) { @@ -769,18 +890,19 @@ int start(void) path = get_icc(crtc_updates[i].filter.crtc); if (path == NULL) { - /* TOOD remove CRTC */ - } - switch (load_icc(path, rampses + i, depths + i)) - { - case 0: - break; - case -1: - return cleanup(-1); - case -2: - fprintf(stderr, "%s: unusable ICC profile: %s\n", argv0, icc_pathname); - return cleanup(-3); + /* TODO remove CRTC */ } + else + switch (load_icc(path, rampses + i, depths + i)) + { + case 0: + break; + case -1: + return cleanup(-1); + case -2: + fprintf(stderr, "%s: unusable ICC profile: %s\n", argv0, path); + return cleanup(-3); + } } } |