diff options
Diffstat (limited to '')
| -rw-r--r-- | src/servers/gamma.c | 23 |
1 files changed, 10 insertions, 13 deletions
diff --git a/src/servers/gamma.c b/src/servers/gamma.c index 9800997..04b8856 100644 --- a/src/servers/gamma.c +++ b/src/servers/gamma.c @@ -155,26 +155,23 @@ void set_gamma(const struct output* restrict output, const union gamma_ramps* re * Parse the EDID of a monitor * * @param output The output + * @param edid The EDID in binary format + * @param n The length of the EDID */ -static void parse_edid(struct output* restrict output) +static void parse_edid(struct output* restrict output, const unsigned char* restrict edid, size_t n) { - const unsigned char* restrict edid = (const unsigned char*)(output->name); size_t i; - int sum, analogue; + int analogue; + unsigned sum; output->red_x = output->green_x = output->blue_x = output->white_x = 0; output->red_y = output->green_y = output->blue_y = output->white_y = 0; + output->colourspace = COLOURSPACE_UNKNOWN; - if (output->name_is_edid == 0) - { - output->colourspace = COLOURSPACE_UNKNOWN; - return; - } - - if (strlen((const char*)edid) < 128) + if ((edid == NULL) || (n < 128)) return; for (i = 0, sum = 0; i < 128; i++) - sum += (int)edid[i]; + sum += (unsigned)edid[i]; if ((sum & 0xFF) != 0) return; if ((edid[0] != 0) || (edid[7] != 0)) @@ -198,7 +195,7 @@ static void parse_edid(struct output* restrict output) if (output->colourspace != COLOURSPACE_RGB) return; - if (edid[24] & 2) + if (edid[24] & 4) output->colourspace = COLOURSPACE_SRGB; output->red_x = (edid[25] >> 6) & 3; @@ -263,6 +260,7 @@ int initialise_gamma_info(void) if (outputs[i].depth == 0 || outputs[i].red_size == 0 || outputs[i].green_size == 0 || outputs[i].blue_size == 0) outputs[i].supported = 0; + parse_edid(outputs + i, info.edid_error ? NULL : info.edid, info.edid_error ? 0 : info.edid_length); outputs[i].name = get_crtc_name(&info, crtcs + i); saved_errno = errno; outputs[i].name_is_edid = ((info.edid_error == 0) && (info.edid != NULL)); @@ -284,7 +282,6 @@ int initialise_gamma_info(void) errno = saved_errno; if (outputs[i].name == NULL) return -1; - parse_edid(outputs + i); } return 0; |