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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
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tree5bb04bc188f3366fe2e50cca8e05020a8cf3cb6f /src/libgamma/AdjustmentMethod.java
parentmissed to set JAVA_HOME (diff)
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Signed-off-by: Mattias Andrée <maandree@kth.se>
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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;
-
-
-/**
- * Class of adjustment methods.
- */
-public enum AdjustmentMethod
-{
- /**
- * The identifier for the dummy adjustment method.
- * This method can be configured and is useful for
- * testing your program's ability to handle errors.
- */
- DUMMY(0),
-
- /**
- * The identifier for the adjustment method with
- * uses the RandR protocol under the X display server.
- */
- X_RANDR(1),
-
- /**
- * The identifier for the adjustment method with
- * uses the VidMode protocol under the X display server.
- * This is an older alternative to RandR that can
- * work on some drivers that are not supported by RandR,
- * however it can only control the primary CRTC per
- * screen (partition).
- */
- X_VIDMODE(2),
-
- /**
- * The identifier for the Direct Rendering Manager
- * adjustment method that is available in Linux
- * (built in to the Linux kernel with a userland
- * library for access) and is a part of the
- * Direct Rendering Infrastructure. This adjustment
- * method all work when you are in non-graphical
- * mode; however a display server cannnot be
- * started while this is running, but it can be
- * started while a display server is running.
- */
- LINUX_DRM(3),
-
- /**
- * The identifier for the Graphics Device Interface
- * adjustment method that is available in Windows.
- * This method is not well tested; it can be compiled
- * to be available under X.org using a translation layer.
- */
- W32_GDI(4),
-
- /**
- * The identifier for the CoreGraphics adjustment
- * method that is available in Mac OS X that can
- * adjust gamma ramps under the Quartz display server.
- * This method is not well tested; it can be compiled
- * to be available under X.org using a translation layer.
- */
- QUARTZ_CORE_GRAPHICS(5)
-
- ;
-
-
- /**
- * Type initialiser.
- */
- static
- {
- Libgamma.initialise();
- }
-
-
-
- /**
- * The index of the last gamma method, neither it
- * nor any index before it may actually be supported
- * as it could have been disabled at compile-time
- */
- public static final int MAX = 5;
-
- /**
- * The number adjustment methods provided by this library.
- * Note however that this includes adjstment methods that
- * have been removed at compile-time.
- */
- public static final int COUNT = MAX + 1;
-
- /**
- * Adjustment methods by their numerical values.
- */
- public static AdjustmentMethod[] VALUES =
- {
- DUMMY, X_RANDR, X_VIDMODE, LINUX_DRM, W32_GDI, QUARTZ_CORE_GRAPHICS
- };
-
-
-
- /**
- * Constructor.
- *
- * @param value The numerical value of the adjustment method.
- */
- private AdjustmentMethod(int value)
- {
- this.value = value;
- }
-
-
- /**
- * The numerical value of the adjustment method.
- */
- public final int value;
-
-
-
- /**
- * Check whether the adjustment method is available.
- *
- * @return Whether the adjustment method is available.
- */
- public boolean is_available()
- {
- return libgamma_is_method_available(this.value) != 0;
- }
-
- /**
- * Get the default site for the adjustment method.
- *
- * @return The default site for the adjustment method.
- */
- public String get_default_site()
- {
- return libgamma_method_default_site(this.value);
- }
-
- /**
- * Get the default variable that determines the default
- * site for the adjustment method.
- *
- * @return default variable that determines the default
- * site for the adjustment method.
- */
- public String get_default_site_variable()
- {
- return libgamma_method_default_site_variable(this.value);
- }
-
- /**
- * Return the capabilities of the adjustment method.
- *
- * @return The capabilities of the adjustment method.
- */
- public AdjustmentMethodCapabilities get_capabilities()
- {
- return new AdjustmentMethodCapabilities(libgamma_method_capabilities(this.value));
- }
-
-
-
- /**
- * List available adjustment methods by their order of preference based on the environment.
- *
- * @param operation Allowed values:
- * 0: Methods that the environment suggests will work, excluding fake.
- * 1: Methods that the environment suggests will work, including fake.
- * 2: All real non-fake methods.
- * 3: All real methods.
- * 4: All methods.
- * Other values invoke undefined behaviour.
- * @return List available adjustment methods by their order of preference.
- */
- public static AdjustmentMethod[] list_methods(int operation)
- {
- int[] methods = libgamma_list_methods(operation);
- AdjustmentMethod[] rc = new AdjustmentMethod[methods.length];
- for (int i = 0; i < methods.length; i++)
- rc[i] = VALUES[methods[i]];
- return rc;
- }
-
-
-
- /**
- * List available adjustment methods by their order of preference based on the environment.
- *
- * @param operation Allowed values:
- * 0: Methods that the environment suggests will work, excluding fake.
- * 1: Methods that the environment suggests will work, including fake.
- * 2: All real non-fake methods.
- * 3: All real methods.
- * 4: All methods.
- * Other values invoke undefined behaviour.
- * @return List available adjustment methods by their order of preference.
- */
- private static native int[] libgamma_list_methods(int operation);
-
- /**
- * Check whether an adjustment method is available, non-existing (invalid) methods will be
- * identified as not available under the rationale that the library may be out of date.
- *
- * @param method The adjustment method.
- * @return Whether the adjustment method is available.
- */
- private static native int libgamma_is_method_available(int method);
-
- /**
- * Return the capabilities of an adjustment method.
- *
- * @param method The adjustment method (display server and protocol).
- * @return Input parameter to the constructor of {@link AdjustmentMethodCapabilities}.
- */
- private static native long libgamma_method_capabilities(int method);
-
-
- /**
- * Return the default site for an adjustment method.
- *
- * @param method The adjustment method (display server and protocol.)
- * @return The default site, {@code null} if it cannot be determined or
- * if multiple sites are not supported by the adjustment method.
- */
- private static native String libgamma_method_default_site(int method);
-
- /**
- * Return the default variable that determines
- * the default site for an adjustment method.
- *
- * @param method The adjustment method (display server and protocol.)
- * @return The environ variables that is used to determine the
- * default site. {@code null} if there is none, that is,
- * if the method does not support multiple sites.
- */
- private static native String libgamma_method_default_site_variable(int method);
-
-}
-