a7b3072cc2
This patch supplements each existing connection type with an new constructor that is meant to replace the original one. The new one takes a reference to the component's environment as argument and thereby does not rely on the presence of the globally accessible 'env()' interface. The original constructors are marked as deprecated. Once we have completely abolished the use of the global 'env()', we will remove them. Fixes #1960
90 lines
2.6 KiB
C++
90 lines
2.6 KiB
C++
/*
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* \brief Connection to i.MX53 specific frame-buffer service
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* \author Stefan Kalkowski
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* \date 2013-02-26
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*/
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/*
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* Copyright (C) 2008-2013 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__IMX_FRAMEBUFFER_SESSION__CONNECTION_H_
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#define _INCLUDE__IMX_FRAMEBUFFER_SESSION__CONNECTION_H_
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#include <imx_framebuffer_session/client.h>
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#include <util/arg_string.h>
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#include <base/connection.h>
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namespace Framebuffer { class Imx_connection; }
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class Framebuffer::Imx_connection : public Genode::Connection<Imx_session>,
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public Imx_client
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{
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private:
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/**
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* Create session and return typed session capability
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*/
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Capability<Imx_session> _connect(Genode::Parent &parent,
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unsigned width, unsigned height,
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Mode::Format format)
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{
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using namespace Genode;
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enum { ARGBUF_SIZE = 128 };
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char argbuf[ARGBUF_SIZE];
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/* donate ram quota for storing server-side meta data */
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strncpy(argbuf, "ram_quota=8K", sizeof(argbuf));
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/* set optional session-constructor arguments */
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if (width)
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Arg_string::set_arg(argbuf, sizeof(argbuf), "fb_width", width);
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if (height)
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Arg_string::set_arg(argbuf, sizeof(argbuf), "fb_height", height);
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if (format != Mode::INVALID)
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Arg_string::set_arg(argbuf, sizeof(argbuf), "fb_format", format);
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return session(parent, argbuf);
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}
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public:
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/**
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* Constructor
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*
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* \param mode desired size and pixel format
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*
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* The specified values are not enforced. After creating the
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* session, you should validate the actual frame-buffer attributes
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* by calling the 'info' method of the frame-buffer interface.
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*/
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Imx_connection(Genode::Env &env, Framebuffer::Mode mode)
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:
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Genode::Connection<Imx_session>(env, _connect(env.parent(),
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mode.width(), mode.height(),
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mode.format())),
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Imx_client(cap())
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{ }
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/**
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* Constructor
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*
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* \noapi
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* \deprecated Use the constructor with 'Env &' as first
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* argument instead
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*/
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Imx_connection(unsigned width = 0,
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unsigned height = 0,
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Mode::Format format = Mode::INVALID)
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: Genode::Connection<Imx_session>(_connect(*Genode::env()->parent(),
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width, height, format)),
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Imx_client(cap()) { }
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};
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#endif /* _INCLUDE__IMX_FRAMEBUFFER_SESSION__CONNECTION_H_ */
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