77 lines
2.7 KiB
C
77 lines
2.7 KiB
C
/* $Id: HGSMIChannels.h $ */
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/** @file
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*
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* VBox Host Guest Shared Memory Interface (HGSMI).
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* Host/Guest shared part.
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* Channel identifiers.
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*/
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/*
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* Copyright (C) 2006-2024 Oracle and/or its affiliates.
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*
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use,
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* copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following
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* conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*/
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#ifndef VBOX_INCLUDED_Graphics_HGSMIChannels_h
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#define VBOX_INCLUDED_Graphics_HGSMIChannels_h
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#ifndef RT_WITHOUT_PRAGMA_ONCE
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# pragma once
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#endif
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/*
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* Each channel has an 8 bit identifier. There are a number of predefined
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* (hardcoded) channels.
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*
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* HGSMI_CH_HGSMI channel can be used to map a string channel identifier
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* to a free 16 bit numerical value. values are allocated in range
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* [HGSMI_CH_STRING_FIRST;HGSMI_CH_STRING_LAST].
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*/
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/* Predefined channel identifiers. Used internally by VBOX to simplify the channel setup. */
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/* A reserved channel value */
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#define HGSMI_CH_RESERVED 0x00
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/* HGCMI: setup and configuration */
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#define HGSMI_CH_HGSMI 0x01
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/* Graphics: VBVA */
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#define HGSMI_CH_VBVA 0x02
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/* Graphics: Seamless with a single guest region */
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#define HGSMI_CH_SEAMLESS 0x03
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/* Graphics: Seamless with separate host windows */
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#define HGSMI_CH_SEAMLESS2 0x04
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/* Graphics: OpenGL HW acceleration */
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#define HGSMI_CH_OPENGL 0x05
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/* Dynamically allocated channel identifiers. */
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/* The first channel index to be used for string mappings (inclusive) */
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#define HGSMI_CH_STRING_FIRST 0x20
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/* The last channel index for string mappings (inclusive) */
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#define HGSMI_CH_STRING_LAST 0xff
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/* Check whether the channel identifier is allocated for a dynamic channel */
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#define HGSMI_IS_DYNAMIC_CHANNEL(_channel) (((uint8_t)(_channel) & 0xE0) != 0)
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#endif /* !VBOX_INCLUDED_Graphics_HGSMIChannels_h */
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