diff options
Diffstat (limited to '')
| -rw-r--r-- | src/gamma-x-randr.c | 51 | ||||
| -rw-r--r-- | src/libgamma-error.h | 7 |
2 files changed, 53 insertions, 5 deletions
diff --git a/src/gamma-x-randr.c b/src/gamma-x-randr.c index 6639e8f..8a63d67 100644 --- a/src/gamma-x-randr.c +++ b/src/gamma-x-randr.c @@ -28,6 +28,9 @@ #include <errno.h> #include <string.h> #include <stdint.h> +#ifdef DEBUG +# include <stdio.h> +#endif #include <xcb/xcb.h> #include <xcb/randr.h> @@ -52,7 +55,7 @@ * @param default_error The libgamma error to use if the xcb error is not recognised * @return The libgamma error */ -static int libgamma_x_randr_translate_error(int error_code, int default_error) +static int translate_error(int error_code, int default_error) { switch (error_code) { @@ -125,7 +128,47 @@ void libgamma_x_randr_method_capabilities(libgamma_method_capabilities_t* restri int libgamma_x_randr_site_initialise(libgamma_site_state_t* restrict this, char* restrict site) { - /* TODO */ + xcb_generic_error_t* error = NULL; + xcb_connection_t* restrict connection; + xcb_randr_query_version_cookie_t cookie; + xcb_randr_query_version_reply_t* restrict reply; + const xcb_setup_t* restrict setup; + xcb_screen_iterator_t iter; + + this->data = connection = xcb_connect(site, NULL); + if (connection == NULL) + return LIBGAMMA_NO_SUCH_SITE; + + cookie = xcb_randr_query_version(connection, RANDR_VERSION_MAJOR, RANDR_VERSION_MINOR); + reply = xcb_randr_query_version_reply(connection, cookie, &error); + + if ((error != NULL) || (reply == NULL)) + { + free(reply); + xcb_disconnect(connection); + if (error != NULL) + return translate_error(error->error_code, LIBGAMMA_PROTOCOL_VERSION_QUERY_FAILED); + return LIBGAMMA_PROTOCOL_VERSION_QUERY_FAILED; + } + + if ((reply->major_version != RANDR_VERSION_MAJOR) || + (reply->minor_version < RANDR_VERSION_MINOR)) + { +#ifdef DEBUG + fprintf(stderr, "libgamma: RandR protocol version: %u.%u", reply->major_version, reply->minor_version); +#endif + free(reply); + xcb_disconnect(connection); + return LIBGAMMA_PROTOCOL_VERSION_NOT_SUPPORTED;; + } + + free(reply); + + setup = xcb_get_setup(connection); + iter = xcb_setup_roots_iterator(setup); + this->partitions_available = (size_t)(iter.rem); + + return 0; } @@ -283,7 +326,7 @@ 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 libgamma_x_randr_translate_error(error->error_code, LIBGAMMA_GAMMA_RAMP_READ_FAILED); + return translate_error(error->error_code, LIBGAMMA_GAMMA_RAMP_READ_FAILED); red = xcb_randr_get_crtc_gamma_red(reply); green = xcb_randr_get_crtc_gamma_green(reply); @@ -319,7 +362,7 @@ 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 libgamma_x_randr_translate_error(error->error_code, LIBGAMMA_GAMMA_RAMP_WRITE_FAILED); + return translate_error(error->error_code, LIBGAMMA_GAMMA_RAMP_WRITE_FAILED); return 0; } diff --git a/src/libgamma-error.h b/src/libgamma-error.h index 5cdfc65..6e3b102 100644 --- a/src/libgamma-error.h +++ b/src/libgamma-error.h @@ -232,6 +232,11 @@ extern const char* libgamma_group_name; */ #define LIBGAMMA_PROTOCOL_VERSION_QUERY_FAILED (-37) +/** + * The adjustment method's version of its protocol is not supported + */ +#define LIBGAMMA_PROTOCOL_VERSION_NOT_SUPPORTED (-38) + /** @@ -239,7 +244,7 @@ extern const char* libgamma_group_name; * If this is lower than the number your program thinks it * should be sould update your program for new errors. */ -#define LIBGAMMA_ERROR_MIN (-37) +#define LIBGAMMA_ERROR_MIN (-38) |