SPDX-FileCopyrightText: 2021 Méven Car SPDX-FileCopyrightText: 2023 Xaver Hugl SPDX-License-Identifier: MIT-CMU ]]> This interface enables clients to set properties of output devices for screen configuration purposes via the server. To this end output devices are referenced by global kde_output_device_v2 objects. outputmanagement (wl_global) -------------------------- request: * create_configuration -> outputconfiguration (wl_resource) outputconfiguration (wl_resource) -------------------------- requests: * enable(outputdevice, bool) * mode(outputdevice, mode) * transformation(outputdevice, flag) * position(outputdevice, x, y) * apply events: * applied * failed The server registers one outputmanagement object as a global object. In order to configure outputs a client requests create_configuration, which provides a resource referencing an outputconfiguration for one-time configuration. That way the server knows which requests belong together and can group them by that. On the outputconfiguration object the client calls for each output whether the output should be enabled, which mode should be set (by referencing the mode from the list of announced modes) and the output's global position. Once all outputs are configured that way, the client calls apply. At that point and not earlier the server should try to apply the configuration. If this succeeds the server emits the applied signal, otherwise the failed signal, such that the configuring client is noticed about the success of its configuration request. Through this design the interface enables atomic output configuration changes if internally supported by the server. Warning! The protocol described in this file is a desktop environment implementation detail. Regular clients must not use this protocol. Backward incompatible changes may be added without bumping the major version of the extension. Request an outputconfiguration object through which the client can configure output devices. outputconfiguration is a client-specific resource that can be used to ask the server to apply changes to available output devices. The client receives a list of output devices from the registry. When it wants to apply new settings, it creates a configuration object from the outputmanagement global, writes changes through this object's enable, scale, transform and mode calls. It then asks the server to apply these settings in an atomic fashion, for example through Linux' DRM interface. The server signals back whether the new settings have applied successfully or failed to apply. outputdevice objects are updated after the changes have been applied to the hardware and before the server side sends the applied event. These error can be emitted in response to kde_output_configuration_v2 requests. Mark the output as enabled or disabled. Sets the mode for a given output. Sets the transformation for a given output. Sets the position for this output device. (x,y) describe the top-left corner of the output in global space, whereby the origin (0,0) of the global space has to be aligned with the top-left corner of the most left and in case this does not define a single one the top output. There may be no gaps or overlaps between outputs, i.e. the outputs are stacked horizontally, vertically, or both on each other. Sets the scaling factor for this output device. Asks the server to apply property changes requested through this outputconfiguration object to all outputs on the server side. The output configuration can be applied only once. The already_applied protocol error will be posted if the apply request is called the second time. Sent after the server has successfully applied the changes. . Sent if the server rejects the changes or failed to apply them. Set the overscan value of this output device with a value in percent. Describes when the compositor may employ variable refresh rate Set what policy the compositor should employ regarding its use of variable refresh rate. Whether this output should use full or limited rgb. Whether full or limited color range should be used The order of outputs can be used to assign desktop environment components to a specific screen, see kde_output_order_v1 for details. The priority is 1-based for outputs that will be enabled after this changeset is applied, all outputs that are disabled need to have the index set to zero. Sets whether or not the output should be set to HDR mode. Sets the brightness of standard dynamic range content in nits. Only has an effect while the output is in HDR mode. Note that while the value is in nits, that doesn't necessarily translate to the same brightness on the screen. Whether or not the output should use a wide color gamut This can be used to provide the colors users assume sRGB applications should have based on the default experience on many modern sRGB screens. Set the brightness modifier of the output. It doesn't specify any absolute values, but is merely a multiplier on top of other brightness values, like sdr_brightness and brightness_metadata. 0 is the minimum brightness (not completely dark) and 10000 is the maximum brightness. This is supported while HDR is active in versions 8 and below, or when the device supports the brightness_control capability in versions 9 and above.