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authorMattias Andrée <maandree@kth.se>2022-07-21 12:45:26 +0200
committerMattias Andrée <maandree@kth.se>2022-07-21 12:45:26 +0200
commitd2386fa0e3cc5e80fcfe51f07751d13676655d76 (patch)
tree5bb04bc188f3366fe2e50cca8e05020a8cf3cb6f /libgamma/LibgammaException.java
parentmissed to set JAVA_HOME (diff)
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Improve makefile, change license to ISC, change code style, remove dist/
Signed-off-by: Mattias Andrée <maandree@kth.se>
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-rw-r--r--libgamma/LibgammaException.java411
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diff --git a/libgamma/LibgammaException.java b/libgamma/LibgammaException.java
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+/* See LICENSE file for copyright and license details. */
+package libgamma;
+
+
+/**
+ * Class of <tt>libgamma</tt> exceptions including
+ * native system exceptions
+ * <p>
+ * The class contains constants with <tt>libgamma</tt> error
+ * codes. It does however not contain system error codes.
+ */
+@SuppressWarnings("serial")
+public class LibgammaException extends Exception
+{
+ /**
+ * Type initialiser
+ */
+ static
+ {
+ Libgamma.initialise();
+ }
+
+
+ /**
+ * This error code is never used. It is only provided
+ * so you know its error code if you plan to iterate
+ * over all <tt>libgamma</tt> error codes.
+ */
+ public static final int LIBGAMMA_ERRNO_SET = -1;
+
+ /**
+ * The selected adjustment method does not exist
+ * or has been excluded at compile-time
+ */
+ public static final int LIBGAMMA_NO_SUCH_ADJUSTMENT_METHOD = -2;
+
+ /**
+ * The selected site does not exist
+ */
+ public static final int LIBGAMMA_NO_SUCH_SITE = -3;
+
+ /**
+ * The selected partition does not exist
+ */
+ public static final int LIBGAMMA_NO_SUCH_PARTITION = -4;
+
+ /**
+ * The selected CRTC does not exist
+ */
+ public static final int LIBGAMMA_NO_SUCH_CRTC = -5;
+
+ /**
+ * Counter overflowed when counting the number
+ * of available items
+ */
+ public static final int LIBGAMMA_IMPOSSIBLE_AMOUNT = -6;
+
+ /**
+ * The selected connector is disabled, it does
+ * not have a CRTC
+ */
+ public static final int LIBGAMMA_CONNECTOR_DISABLED = -7;
+
+ /**
+ * The selected CRTC could not be opened,
+ * reason unknown
+ */
+ public static final int LIBGAMMA_OPEN_CRTC_FAILED = -8;
+
+ /**
+ * The CRTC information field is not supported
+ * by the adjustment method
+ */
+ public static final int LIBGAMMA_CRTC_INFO_NOT_SUPPORTED = -9;
+
+ /**
+ * Failed to read the current gamma ramps for
+ * the selected CRTC, reason unknown
+ */
+ public static final int LIBGAMMA_GAMMA_RAMP_READ_FAILED = -10;
+
+ /**
+ * Failed to write the current gamma ramps for
+ * the selected CRTC, reason unknown
+ */
+ public static final int LIBGAMMA_GAMMA_RAMP_WRITE_FAILED = -11;
+
+ /**
+ * The specified ramp sizes does not match the
+ * ramps sizes returned by the adjustment methods
+ * in response to the query/command
+ */
+ public static final int LIBGAMMA_GAMMA_RAMP_SIZE_CHANGED = -12;
+
+ /**
+ * The specified ramp sizes are not identical
+ * which is required by the adjustment method
+ * <p>
+ * (Only returned in debug mode)
+ */
+ public static final int LIBGAMMA_MIXED_GAMMA_RAMP_SIZE = -13;
+
+ /**
+ * The specified ramp sizes are not supported
+ * by the adjustment method
+ * <p>
+ * (Only returned in debug mode)
+ */
+ public static final int LIBGAMMA_WRONG_GAMMA_RAMP_SIZE = -14;
+
+ /**
+ * The adjustment method reported that the gamma
+ * ramps size is 1, or perhaps even zero or negative
+ */
+ public static final int LIBGAMMA_SINGLETON_GAMMA_RAMP = -15;
+
+ /**
+ * The adjustment method failed to list
+ * available CRTC:s, reason unknown
+ */
+ public static final int LIBGAMMA_LIST_CRTCS_FAILED = -16;
+
+ /**
+ * Failed to acquire mode resources from the
+ * adjustment method
+ */
+ public static final int LIBGAMMA_ACQUIRING_MODE_RESOURCES_FAILED = -17;
+
+ /**
+ * The adjustment method reported that a negative
+ * number of partitions exists in the site
+ */
+ public static final int LIBGAMMA_NEGATIVE_PARTITION_COUNT = -18;
+
+ /**
+ * The adjustment method reported that a negative
+ * number of CRTC:s exists in the partition
+ */
+ public static final int LIBGAMMA_NEGATIVE_CRTC_COUNT = -19;
+
+ /**
+ * Device cannot be access becauses of
+ * insufficient permissions
+ */
+ public static final int LIBGAMMA_DEVICE_RESTRICTED = -20;
+
+ /**
+ * Device cannot be access, reason unknown
+ */
+ public static final int LIBGAMMA_DEVICE_ACCESS_FAILED = -21;
+
+ /**
+ * Device cannot be access, membership of the
+ * {@link #group_gid} (named by {@link #group_name}
+ * (can be {@code null}, if so <tt>errno</tt> may have
+ * been set to tell why)) is required
+ */
+ public static final int LIBGAMMA_DEVICE_REQUIRE_GROUP = -22;
+
+ /**
+ * The graphics card appear to have been removed
+ */
+ public static final int LIBGAMMA_GRAPHICS_CARD_REMOVED = -23;
+
+ /**
+ * The state of the requested information is unknown
+ */
+ public static final int LIBGAMMA_STATE_UNKNOWN = -24;
+
+ /**
+ * Failed to determine which connector the
+ * CRTC belongs to
+ */
+ public static final int LIBGAMMA_CONNECTOR_UNKNOWN = -25;
+
+ /**
+ * The detected connector type is not listed
+ * in this library and has to be updated
+ */
+ public static final int LIBGAMMA_CONNECTOR_TYPE_NOT_RECOGNISED = -26;
+
+ /**
+ * The detected subpixel order is not listed
+ * in this library and has to be updated
+ */
+ public static final int LIBGAMMA_SUBPIXEL_ORDER_NOT_RECOGNISED = -27;
+
+ /**
+ * The length of the EDID does not match that
+ * of any supported EDID structure revision
+ */
+ public static final int LIBGAMMA_EDID_LENGTH_UNSUPPORTED = -28;
+
+ /**
+ * The magic number in the EDID does not match
+ * that of any supported EDID structure revision
+ */
+ public static final int LIBGAMMA_EDID_WRONG_MAGIC_NUMBER = -29;
+
+ /**
+ * The EDID structure revision used by the
+ * mointor is not supported
+ */
+ public static final int LIBGAMMA_EDID_REVISION_UNSUPPORTED = -30;
+
+ /**
+ * The gamma characteristics field in the EDID
+ * is left unspecified
+ * <p>
+ * (This could be considered a non-error)
+ */
+ public static final int LIBGAMMA_GAMMA_NOT_SPECIFIED = -31;
+
+ /**
+ * The checksum in the EDID is incorrect, all
+ * request information has been provided
+ * by you cannot count on it
+ */
+ public static final int LIBGAMMA_EDID_CHECKSUM_ERROR = -32;
+
+ /**
+ * Both of the errors {@link #LIBGAMMA_GAMMA_NOT_SPECIFIED}
+ * and {@link #LIBGAMMA_EDID_CHECKSUM_ERROR} have occurred
+ */
+ public static final int LIBGAMMA_GAMMA_NOT_SPECIFIED_AND_EDID_CHECKSUM_ERROR = -33;
+
+ /**
+ * Failed to query the gamma ramps size from the
+ * adjustment method, reason unknown
+ */
+ public static final int LIBGAMMA_GAMMA_RAMPS_SIZE_QUERY_FAILED = -34;
+
+ /**
+ * The selected partition could not be opened,
+ * reason unknown
+ */
+ public static final int LIBGAMMA_OPEN_PARTITION_FAILED = -35;
+
+ /**
+ * The selected site could not be opened,
+ * reason unknown
+ */
+ public static final int LIBGAMMA_OPEN_SITE_FAILED = -36;
+
+ /**
+ * Failed to query the adjustment method for
+ * its protocol version, reason unknown
+ */
+ public static final int LIBGAMMA_PROTOCOL_VERSION_QUERY_FAILED = -37;
+
+ /**
+ * The adjustment method's version of its
+ * protocol is not supported
+ */
+ public static final int LIBGAMMA_PROTOCOL_VERSION_NOT_SUPPORTED = -38;
+
+ /**
+ * The adjustment method failed to list
+ * available partitions, reason unknown
+ */
+ public static final int LIBGAMMA_LIST_PARTITIONS_FAILED = -39;
+
+ /**
+ * Partition exists by index, but the partition
+ * at that index does not exist
+ */
+ public static final int LIBGAMMA_NULL_PARTITION = -40;
+
+ /**
+ * There is not mointor connected to the
+ * connector of the selected CRTC
+ */
+ public static final int LIBGAMMA_NOT_CONNECTED = -41;
+
+ /**
+ * Data extraction from a reply from the
+ * adjustment method failed, reason unknown
+ */
+ public static final int LIBGAMMA_REPLY_VALUE_EXTRACTION_FAILED = -42;
+
+ /**
+ * No EDID property was found on the output
+ */
+ public static final int LIBGAMMA_EDID_NOT_FOUND = -43;
+
+ /**
+ * Failed to list properties on the output,
+ * reason unknown
+ */
+ public static final int LIBGAMMA_LIST_PROPERTIES_FAILED = -44;
+
+ /**
+ * Failed to query a property's value from
+ * the output, reason unknown
+ */
+ public static final int LIBGAMMA_PROPERTY_VALUE_QUERY_FAILED = -45;
+
+ /**
+ * A request for information on an output
+ * failed, reason unknown
+ */
+ public static final int LIBGAMMA_OUTPUT_INFORMATION_QUERY_FAILED = -46;
+
+
+ /**
+ * The number of the libgamma error with the
+ * lowest number. If this is lower than the
+ * number your program thinks it should be sould
+ * update your program for new errors.
+ */
+ public static final int LIBGAMMA_ERROR_MIN = -46;
+
+
+ /**
+ * Constructor
+ *
+ * @param error_code The error code
+ */
+ public LibgammaException(int error_code)
+ {
+ this.error_code = error_code;
+ if (error_code == LIBGAMMA_DEVICE_REQUIRE_GROUP) {
+ this.group_gid = libgamma_group_gid();
+ this.group_name = libgamma_group_name();
+ } else {
+ this.group_gid = 0;
+ this.group_name = null;
+ }
+ this.string = error_code < 0 ? name_of_error(error_code) : strerror(error_code);
+ }
+
+
+ /**
+ * The error code
+ * <p>
+ * Cannot be {@link #LIBGAMMA_ERRNO_SET}
+ */
+ public final int error_code;
+
+ /**
+ * Group that the user needs to be a member of if
+ * {@link #error_code} is {@link #LIBGAMMA_DEVICE_REQUIRE_GROUP}
+ */
+ public final int group_gid;
+
+ /**
+ * Group that the user needs to be a member of if
+ * {@link #error_code} is {@link #LIBGAMMA_DEVICE_REQUIRE_GROUP},
+ * {@code null} if the name of the group {@link #group_gid}
+ * cannot be determined
+ */
+ public final String group_name;
+
+ /**
+ * Name of textual description of the error
+ */
+ public final String string;
+
+
+ /**
+ * {@inheritDoc}
+ */
+ @Override
+ public String toString()
+ {
+ return this.string;
+ }
+
+
+ /**
+ * Returns the name of the definition associated with
+ * a <tt>libgamma</tt> error code
+ *
+ * @param value The error code
+ * @return The name of the definition associated with the error code,
+ * {@code null} if the error code does not exist
+ */
+ public static native String name_of_error(int value);
+
+ /**
+ * Return the value of a <tt>libgamma</tt> error definition
+ * refered to by name
+ *
+ * @param name The name of the definition associated with the error code
+ * @return The error code, zero if the name is {@code null}
+ * or does not refer to a <tt>libgamma</tt> error
+ */
+ public static native int value_of_error(String name);
+
+ /**
+ * Acquire the value that should go to {@link #group_gid}
+ *
+ * @return The value that should go to {@link #group_gid}
+ */
+ private static native int libgamma_group_gid();
+
+ /**
+ * Acquire the value that should go to {@link #group_name}
+ *
+ * @return The value that should go to {@link #group_name}
+ */
+ private static native String libgamma_group_name();
+
+ /**
+ * Get a textual description of a system error code
+ *
+ * @param error_code The error code
+ * @return A textual description of the error code
+ */
+ private static native String strerror(int error_code);
+}