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-rw-r--r--src/libgamma/CRTCInformation.java580
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diff --git a/src/libgamma/CRTCInformation.java b/src/libgamma/CRTCInformation.java
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-/**
- * jlibgamma — Display server abstraction layer for gamma ramp and Java
- * Copyright © 2014 Mattias Andrée (maandree@member.fsf.org)
- *
- * This library is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this library. If not, see <http://www.gnu.org/licenses/>.
- */
-package libgamma;
-
-
-/**
- * Cathode ray tube controller information data structure.
- */
-public class CRTCInformation
-{
- /**
- * Type initialiser.
- */
- static
- {
- Libgamma.initialise();
- }
-
-
-
- /**
- * For a {@link CRTCInformation} fill in the values for {@link #edid}
- * and {@link #edid_length} and report errors to {@link #edid_error}.
- */
- public static final int EDID = 1 << 0;
-
- /**
- * For a {@link CRTCInformation} fill in the value for
- * {@link #width_mm} and report errors to {@link #width_mm_error}.
- */
- public static final int WIDTH_MM = 1 << 1;
-
- /**
- * For a {@link CRTCInformation} fill in the value for
- * {@link #height_mm} and report errors to {@link #height_mm_error}.
- */
- public static final int HEIGHT_MM = 1 << 2;
-
- /**
- * For a {@link CRTCInformation} fill in the value for {@link #width_mm_edid}
- * and report errors to {@link #width_mm_edid_error}.
- */
- public static final int WIDTH_MM_EDID = 1 << 3;
-
- /**
- * For a {@link CRTCInformation} fill in the value for
- * {@link #height_mm_edid} and report errors to {@link #height_mm_edid_error}.
- */
- public static final int HEIGHT_MM_EDID = 1 << 4;
-
- /**
- * For a {@link CRTCInformation} fill in the values for
- * {@link #red_gamma_size}, {@link #green_gamma_size} and
- * {@link #blue_gamma_size}. and report errors to
- * {@link #gamma_size_error}.
- */
- public static final int GAMMA_SIZE = 1 << 5;
-
- /**
- * For a {@link CRTCInformation} fill in the value for
- * {@link #gamma_depth} and report errors to {@link #gamma_depth_error}.
- */
- public static final int GAMMA_DEPTH = 1 << 6;
-
- /**
- * For a {@link CRTCInformation} fill in the value for
- * {@link #gamma_support} and report errors to {@link #gamma_support_error}.
- */
- public static final int GAMMA_SUPPORT = 1 << 7;
-
- /**
- * For a {@link CRTCInformation} fill in the value for
- * {@link #subpixel_order} and report errors to {@link #subpixel_order_error}.
- */
- public static final int SUBPIXEL_ORDER = 1 << 8;
-
- /**
- * For a {@link CRTCInformation} fill in the value for
- * {@link #active} and report errors to {@link #active_error}.
- */
- public static final int ACTIVE = 1 << 9;
-
- /**
- * For a {@link CRTCInformation} fill in the value
- * for {@link #connector_name} and report errors to
- * {@link #connector_name_error}.
- */
- public static final int CONNECTOR_NAME = 1 << 10;
-
- /**
- * For a {@link CRTCInformation} fill in the
- * value for {@link #connector_type} and report
- * errors to {@link #connector_type_error}.
- */
- public static final int CONNECTOR_TYPE = 1 << 11;
-
- /**
- * For a {@link CRTCInformation} fill in the values for
- * {@link #gamma_red}, {@link #gamma_green} and
- * {@link #gamma_blue} and report errors to {@link #gamma_error}.
- */
- public static final int GAMMA = 1 << 12;
-
-
- /**
- * The number of {@link #*} values defined.
- */
- public static final int COUNT = 13;
-
-
- /**
- * Macro for both {@link CRTCInformation} fields
- * that can specify the size of the monitor's viewport
- * as specified in the monitor's Extended Display
- * Information Data.
- */
- public static final int MACRO_EDID_VIEWPORT = WIDTH_MM_EDID | HEIGHT_MM_EDID;
-
- /**
- * Macro for all {@link CRTCInformation} fields
- * that can be filled if the adjustment method have
- * support for reading the monitors' Extended Display
- * Information Data.
- */
- public static final int MACRO_EDID = EDID | MACRO_EDID_VIEWPORT | GAMMA;
-
- /**
- * Macro for both {@link CRTCInformation} fields
- * that can specify the size of the monitor's viewport
- * as provided by the adjustment method without this
- * library having to parse the monitor's Extended Display
- * Information Data.
- */
- public static final int MACRO_VIEWPORT = WIDTH_MM | HEIGHT_MM;
-
- /**
- * Macro for the {@link CRTCInformation} fields
- * that specifies the CRTC's gamma ramp sizes and gamma
- * ramp depth.
- */
- public static final int MACRO_RAMP = GAMMA_SIZE | GAMMA_DEPTH;
-
- /**
- * Macro for the {@link CRTCInformation} fields
- * that specifies the CRTC's connector type and the
- * partition unique name of the connector.
- */
- public static final int MACRO_CONNECTOR = CONNECTOR_NAME | CONNECTOR_TYPE;
-
- /**
- * Macro for the {@link CRTCInformation} fields
- * that required there is a monitor attached to
- * the connector, and that status itself.
- */
- public static final int MACRO_ACTIVE = MACRO_EDID | MACRO_VIEWPORT | SUBPIXEL_ORDER | ACTIVE;
-
-
-
- /**
- * Constructor.
- *
- * @param edid The value for {@link edid}.
- * @param connector_name The value for {@link connector_name}.
- * @param gamma The values for {@link gamma_red},
- * {@link gamma_green} and {@link gamma_blue}.
- * @param ints Values for the rest of the variables.
- */
- public CRTCInformation(byte[] edid, String connector_name, float[] gamma, int[] ints)
- {
- this.edid = edid;
- this.connector_name = connector_name;
- this.gamma_red = gamma[0];
- this.gamma_green = gamma[1];
- this.gamma_blue = gamma[2];
-
- this.edid_error = make_error(ints[0]);
- this.width_mm = ints[1];
- this.width_mm_error = make_error(ints[2]);
- this.height_mm = ints[3];
- this.height_mm_error = make_error(ints[4]);
- this.width_mm_edid = ints[5];
- this.width_mm_edid_error = make_error(ints[6]);
- this.height_mm_edid = ints[7];
- this.height_mm_edid_error = make_error(ints[8]);
- this.red_gamma_size = ints[9];
- this.green_gamma_size = ints[10];
- this.blue_gamma_size = ints[11];
- this.gamma_size_error = make_error(ints[12]);
- this.gamma_depth = (short)(ints[13]);
- this.gamma_depth_error = make_error(ints[14]);
- this.gamma_support = ints[15] != 0;
- this.gamma_support_error = make_error(ints[16]);
- this.subpixel_order = SubpixelOrder.VALUES[ints[17]];
- this.subpixel_order_error = make_error(ints[18]);
- this.active = ints[19] != 0;
- this.active_error = make_error(ints[20]);
- this.connector_name_error = make_error(ints[21]);
- this.connector_type = ConnectorType.VALUES[ints[22]];
- this.connector_type_error = make_error(ints[23]);
- this.gamma_error = make_error(ints[24]);
-
- this.has_error = (this.edid_error != null)
- || (this.width_mm_error != null)
- || (this.height_mm_error != null)
- || (this.width_mm_edid_error != null)
- || (this.height_mm_edid_error != null)
- || (this.gamma_size_error != null)
- || (this.gamma_depth_error != null)
- || (this.gamma_support_error != null)
- || (this.subpixel_order_error != null)
- || (this.connector_name_error != null)
- || (this.connector_type_error != null);
- }
-
-
- /**
- * Create an {@link LibgammaException} from an error code.
- *
- * @param error_code The error code.
- * @return An {@link LibgammaException} for the error,
- * {@code null} if <tt>error_code</tt> is zero.
- */
- private static LibgammaException make_error(int error_code)
- {
- if (error_code == 0)
- return null;
- else
- return new LibgammaException(error_code);
- }
-
-
-
- /**
- * The Extended Display Identification Data associated with
- * the attached monitor. This is raw byte array that is usually
- * 128 bytes long.
- */
- public final byte[] edid;
-
- /**
- * Error that occurred when fetching the value for
- * {@link #edid}, {@code null} on success.
- */
- public final LibgammaException edid_error;
-
-
- /**
- * The phyical width, in millimetres, of the viewport of the
- * attached monitor, as reported by the adjustment method. This
- * value may be incorrect, which is a known issue with the X
- * server where it is the result of the X server attempting
- * the estimate the size on its own.
- * Zero means that its is not applicable, which is the case
- * for projectors.
- */
- public final int width_mm;
-
- /**
- * Error that occurred when fetching the value for
- * {@link #width_mm}, {@code null} on success.
- */
- public final LibgammaException width_mm_error;
-
-
- /**
- * The phyical height, in millimetres, of the viewport of the
- * attached monitor, as reported by the adjustment method. This
- * value may be incorrect, which is a known issue with the X
- * server where it is the result of the X server attempting
- * the estimate the size on its own.
- * Zero means that its is not applicable, which is the case
- * for projectors.
- */
- public final int height_mm;
-
- /**
- * Error that occurred when fetching the value for
- * {@link #height_mm}, {@code null} on success.
- */
- public final LibgammaException height_mm_error;
-
-
- /**
- * The phyical width, in millimetres, of the viewport of the
- * attached monitor, as reported by it the monitor's Extended
- * Display Information Data. This value can only contain whole
- * centimetres, which means that the result is always zero
- * modulus ten. However, this could change with revisions of
- * the EDID structure.
- * Zero means that its is not applicable, which is the case
- * for projectors.
- */
- public final int width_mm_edid;
-
- /**
- * Error that occurred when fetching the value for
- * {@link #width_mm_edid}, {@code null} on success.
- */
- public final LibgammaException width_mm_edid_error;
-
-
- /**
- * The phyical height, in millimetres, of the viewport of the
- * attached monitor, as reported by it the monitor's Extended
- * Display Information Data. This value can only contain whole
- * centimetres, which means that the result is always zero
- * modulus ten. However, this could change with revisions of
- * the EDID structure.
- * Zero means that its is not applicable, which is the case
- * for projectors.
- */
- public final int height_mm_edid;
-
- /**
- * Error that occurred when fetching the value for
- * {@link #height_mm_edid}, {@code null} on success.
- */
- public final LibgammaException height_mm_edid_error;
-
-
- /**
- * The size of the encoding axis of the red gamma ramp.
- */
- public final int red_gamma_size;
-
- /**
- * The size of the encoding axis of the green gamma ramp.
- */
- public final int green_gamma_size;
-
- /**
- * The size of the encoding axis of the blue gamma ramp.
- */
- public final int blue_gamma_size;
-
- /**
- * Error that occurred when fetching the values for
- * {@link #red_gamma_size}, {@link #green_gamma_size}
- * and {@link #blue_gamma_size}, {@code null} on success.
- */
- public final LibgammaException gamma_size_error;
-
-
- /**
- * The bit-depth of the value axes of gamma ramps,
- * -1 for single precision floating point, and -2 for
- * double precision floating point.
- */
- public final short gamma_depth;
-
- /**
- * Error that occurred when fetching the value for
- * {@link #gamma_depth}, {@code null} on success.
- */
- public final LibgammaException gamma_depth_error;
-
-
- /**
- * Whether gamma ramp adjustments are supported.
- */
- public final boolean gamma_support;
-
- /**
- * Error that occurred when fetching the value for
- * {@link #gamma_support}, {@code null} on success.
- */
- public final LibgammaException gamma_support_error;
-
-
- /**
- * The layout of the subpixels.
- * You cannot count on this value --- especially for CRT:s ---
- * but it is provided anyway as a means of distinguishing monitors.
- */
- public final SubpixelOrder subpixel_order;
-
- /**
- * Error that occurred when fetching the value for
- * {@link #subpixel_order}, {@code null} on success.
- */
- public final LibgammaException subpixel_order_error;
-
-
- /**
- * Whether there is a monitors connected to the CRTC.
- */
- public final boolean active;
-
- /**
- * Error that occurred when fetching the value for
- * {@link #active}, {@code null} on success.
- */
- public final LibgammaException active_error;
-
-
- /**
- * The name of the connector as designated by the display
- * server or as give by this library in case the display
- * server lacks this feature.
- */
- public final String connector_name;
-
- /**
- * Error that occurred when fetching the value for
- * {@link #connector_name}, {@code null} on success.
- */
- public final LibgammaException connector_name_error;
-
-
- /**
- * The type of the connector that is associated with the CRTC.
- */
- public final ConnectorType connector_type;
-
- /**
- * Error that occurred when fetching the value for
- * {@link #connector_type}, {@code null} on success.
- */
- public final LibgammaException connector_type_error;
-
-
- /**
- * The gamma characteristics of the monitor as reported
- * in its Extended Display Information Data. The value
- * holds the value for the red channel. If you do not have
- * and more accurate measurement of the gamma for the
- * monitor this could be used to give a rought gamma
- * correction; simply divide the value with 2.2 and use
- * the result for the red channel in the gamma correction.
- */
- public final float gamma_red;
-
- /**
- * The gamma characteristics of the monitor as reported
- * in its Extended Display Information Data. The value
- * holds the value for the green channel. If you do not have
- * and more accurate measurement of the gamma for the
- * monitor this could be used to give a rought gamma
- * correction; simply divide the value with 2.2 and use
- * the result for the green channel in the gamma correction.
- */
- public final float gamma_green;
-
- /**
- * The gamma characteristics of the monitor as reported
- * in its Extended Display Information Data. The value
- * holds the value for the blue channel. If you do not have
- * and more accurate measurement of the gamma for the
- * monitor this could be used to give a rought gamma
- * correction; simply divide the value with 2.2 and use
- * the result for the blue channel in the gamma correction.
- */
- public final float gamma_blue;
-
- /**
- * Error that occurred when fetching the values for
- * {@link #red_gamma}, {@link #green_gamma} and
- * {@link #blue_gamma}, {@code null} on success.
- */
- public final LibgammaException gamma_error;
-
-
- /**
- * Whether any of the error fields are non-{@code null}.
- */
- public final boolean has_error;
-
-
-
- /**
- * Helper function for {@link #toString}.
- *
- * @param error An error, may be {@code null}.
- * @return A textual representation of <tt>error</tt>
- */
- private static String errorToString(LibgammaException error)
- {
- if (error == null)
- return "<null>";
- else
- return error.toString();
- }
-
-
- /**
- * {@inheritDoc}
- */
- public String toString()
- {
- String depth_str = Integer.toString(this.gamma_depth);
- if (this.gamma_depth == -1) depth_str = "float";
- if (this.gamma_depth == -1) depth_str = "double";
-
- return "<CRTCInformation: " +
- "edid = " + behex(this.edid) + ", " +
- "edid_error = " + errorToString(this.edid_error) + ", " +
- "width_mm = " + Integer.toString(this.width_mm) + ", " +
- "width_mm_error = " + errorToString(this.width_mm_error) + ", " +
- "height_mm = " + Integer.toString(this.height_mm) + ", " +
- "height_mm_error = " + errorToString(this.height_mm_error) + ", " +
- "width_mm_edid = " + Integer.toString(this.width_mm_edid) + ", " +
- "width_mm_edid_error = " + errorToString(this.width_mm_edid_error) + ", " +
- "height_mm_edid = " + Integer.toString(this.height_mm_edid) + ", " +
- "height_mm_edid_error = " + errorToString(this.height_mm_edid_error) + ", " +
- "red_gamma_size = " + Integer.toString(this.red_gamma_size) + ", " +
- "green_gamma_size = " + Integer.toString(this.green_gamma_size) + ", " +
- "blue_gamma_size = " + Integer.toString(this.blue_gamma_size) + ", " +
- "gamma_size_error = " + errorToString(this.gamma_size_error) + ", " +
- "gamma_depth = " + depth_str + ", " +
- "gamma_depth_error = " + errorToString(this.gamma_depth_error) + ", " +
- "gamma_support = " + Boolean.toString(this.gamma_support) + ", " +
- "gamma_support_error = " + errorToString(this.gamma_support_error) + ", " +
- "subpixel_order = " + this.subpixel_order.toString() + ", " +
- "subpixel_order_error = " + errorToString(this.subpixel_order_error) + ", " +
- "active = " + Boolean.toString(this.active) + ", " +
- "active_error = " + errorToString(this.active_error) + ", " +
- "connector_name = " + (this.connector_name == null ? "<null>" : this.connector_name) + ", " +
- "connector_name_error = " + errorToString(this.connector_name_error) + ", " +
- "connector_type = " + this.connector_type.toString() + ", " +
- "connector_type_error = " + errorToString(this.connector_type_error) + ", " +
- "gamma_red = " + Float.toString(this.gamma_red) + ", " +
- "gamma_green = " + Float.toString(this.gamma_green) + ", " +
- "gamma_blue = " + Float.toString(this.gamma_blue) + ", " +
- "gamma_error = " + errorToString(this.gamma_error) + ", " +
- "has_error = " + Boolean.toString(this.has_error) + ">";
- }
-
-
-
- /**
- * Convert a raw representation of an EDID to a lowercase hexadecimal representation.
- *
- * @param edid The EDID in raw representation.
- * @return The EDID in lowercase hexadecimal representation,
- */
- public static String behex(byte[] edid)
- {
- char[] rc = new char[edid.length * 2];
- for (int i = 0; i < edid.length; i++)
- { rc[i * 2 + 0] = "0123456789abcdef".charAt((edid[i] >> 4) & 15);
- rc[i * 2 + 1] = "0123456789abcdef".charAt((edid[i] >> 0) & 15);
- }
- return new String(rc);
- }
-
- /**
- * Convert an hexadecimal representation of an EDID to a raw representation.
- *
- * @param edid The EDID in hexadecimal representation.
- * @return The EDID in raw representation, it will be half the length
- * of <tt>edid</tt> (the input value).
- */
- public static byte[] unhex(String edid)
- {
- byte[] rc = new byte[edid.length() / 2];
- edid = edid.toLowerCase();
- for (int i = 0; i < rc.length; i++)
- { rc[i] = (byte)("0123456789abcdef".indexOf(edid.charAt(i * 2 + 0)) << 4);
- rc[i] |= (byte)("0123456789abcdef".indexOf(edid.charAt(i * 2 + 1)) << 0);
- }
- return rc;
- }
-
-}
-
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-15 05:22:05 +0000