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73 lines
1.7 KiB
C
73 lines
1.7 KiB
C
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/*
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* \brief Framebuffer session interface
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* \author Norman Feske
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* \date 2006-07-10
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*/
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/*
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* Copyright (C) 2006-2011 Genode Labs GmbH
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*
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* This file is part of the Genode OS framework, which is distributed
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* under the terms of the GNU General Public License version 2.
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*/
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#ifndef _INCLUDE__FRAMEBUFFER_SESSION__FRAMEBUFFER_SESSION_H_
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#define _INCLUDE__FRAMEBUFFER_SESSION__FRAMEBUFFER_SESSION_H_
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#include <dataspace/capability.h>
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#include <session/session.h>
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namespace Framebuffer {
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struct Session : Genode::Session
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{
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static const char *service_name() { return "Framebuffer"; }
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/**
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* Pixel formats
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*/
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enum Mode { INVALID, RGB565 };
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virtual ~Session() { }
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/**
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* Request dataspace representing the logical frame buffer
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*/
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virtual Genode::Dataspace_capability dataspace() = 0;
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/**
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* Request current screen mode properties
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*
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* \param out_w width of frame buffer
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* \param out_h height of frame buffer
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* \param out_mode pixel format
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*/
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virtual void info(int *out_w, int *out_h, Mode *out_mode) = 0;
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/**
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* Flush specified pixel region
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*
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* \param x,y,w,h region to be updated on physical frame buffer
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*/
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virtual void refresh(int x, int y, int w, int h) = 0;
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/**
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* Return number of bytes per pixel for a given pixel format
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*/
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static Genode::size_t bytes_per_pixel(Mode mode) { return 2; }
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/*********************
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** RPC declaration **
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*********************/
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GENODE_RPC(Rpc_dataspace, Genode::Dataspace_capability, dataspace);
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GENODE_RPC(Rpc_info, void, info, int *, int *, Mode *);
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GENODE_RPC(Rpc_refresh, void, refresh, int, int, int, int);
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GENODE_RPC_INTERFACE(Rpc_dataspace, Rpc_info, Rpc_refresh);
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};
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}
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#endif /* _INCLUDE__FRAMEBUFFER_SESSION__FRAMEBUFFER_SESSION_H_ */
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