diff options
Diffstat (limited to 'src/gamma-x-randr.c')
| -rw-r--r-- | src/gamma-x-randr.c | 26 |
1 files changed, 20 insertions, 6 deletions
diff --git a/src/gamma-x-randr.c b/src/gamma-x-randr.c index 87b0475..9c862ef 100644 --- a/src/gamma-x-randr.c +++ b/src/gamma-x-randr.c @@ -55,7 +55,7 @@ * @param default_error The libgamma error to use if the xcb error is not recognised * @return The libgamma error */ -static int translate_error(int error_code, int default_error) +static int translate_error_(int error_code, int default_error) { switch (error_code) { @@ -72,6 +72,20 @@ static int translate_error(int error_code, int default_error) } +/** + * Translate an xcb error into a libgamma error + * + * @param error_code The xcb error + * @param default_error The libgamma error to use if the xcb error is not recognised + * @param return_errno Whether an `errno` value may be returned + * @return The libgamma error + */ +static int translate_error(int error_code, int default_error, int return_errno) +{ + int r = translate_error_(error_code, default_error); + return return_errno ? (r > 0 ? errno : r) : r; +} + /** * Return the capabilities of the adjustment method @@ -147,7 +161,7 @@ int libgamma_x_randr_site_initialise(libgamma_site_state_t* restrict this, free(reply); xcb_disconnect(connection); if (error != NULL) - return translate_error(error->error_code, LIBGAMMA_PROTOCOL_VERSION_QUERY_FAILED); + return translate_error(error->error_code, LIBGAMMA_PROTOCOL_VERSION_QUERY_FAILED, 0); return LIBGAMMA_PROTOCOL_VERSION_QUERY_FAILED; } @@ -242,7 +256,7 @@ int libgamma_x_randr_partition_initialise(libgamma_partition_state_t* restrict t cookie = xcb_randr_get_screen_resources_current(connection, screen->root); reply = xcb_randr_get_screen_resources_current_reply(connection, cookie, &error); if (error != NULL) - return translate_error(error->error_code, LIBGAMMA_LIST_CRTCS_FAILED); + return translate_error(error->error_code, LIBGAMMA_LIST_CRTCS_FAILED, 0); this->crtcs_available = reply->num_crtcs; crtcs = xcb_randr_get_screen_resources_current_crtcs(reply); @@ -350,7 +364,7 @@ static int get_gamma_ramp_size(libgamma_crtc_information_t* restrict out, libgam cookie = xcb_randr_get_crtc_gamma_size(connection, *crtc_id); reply = xcb_randr_get_crtc_gamma_size_reply(connection, cookie, &error); if (error != NULL) - return out->gamma_size_error = translate_error(error->error_code, LIBGAMMA_GAMMA_RAMPS_SIZE_QUERY_FAILED); + return out->gamma_size_error = translate_error(error->error_code, LIBGAMMA_GAMMA_RAMPS_SIZE_QUERY_FAILED, 1); if (reply->size < 2) out->gamma_size_error = LIBGAMMA_SINGLETON_GAMMA_RAMP; out->red_gamma_size = out->green_gamma_size = out->blue_gamma_size = reply->size; @@ -454,7 +468,7 @@ int libgamma_x_randr_crtc_get_gamma_ramps(libgamma_crtc_state_t* restrict this, reply = xcb_randr_get_crtc_gamma_reply(connection, cookie, &error); if (error != NULL) - return translate_error(error->error_code, LIBGAMMA_GAMMA_RAMP_READ_FAILED); + return translate_error(error->error_code, LIBGAMMA_GAMMA_RAMP_READ_FAILED, 0); red = xcb_randr_get_crtc_gamma_red(reply); green = xcb_randr_get_crtc_gamma_green(reply); @@ -490,7 +504,7 @@ int libgamma_x_randr_crtc_set_gamma_ramps(libgamma_crtc_state_t* restrict this, cookie = xcb_randr_set_crtc_gamma_checked(connection, *(xcb_randr_crtc_t*)(this->data), (uint16_t)(ramps.red_size), ramps.red, ramps.green, ramps.blue); if ((error = xcb_request_check(connection, cookie)) != NULL) - return translate_error(error->error_code, LIBGAMMA_GAMMA_RAMP_WRITE_FAILED); + return translate_error(error->error_code, LIBGAMMA_GAMMA_RAMP_WRITE_FAILED, 0); return 0; } |