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71f0757a30
* Supply Env to Input::Session_component * Attach input event dataspace at Input::Client * Process input events by lambda rather than pointer * Supply Env and a label to Input::Connection * Wm serves valid input_session to decorator * Per-source signal handling at input_merger * Base API update for dummy_input_drv, test_input * Input API update for launcher, menu_view, terminal, mupdf, sdl, seoul, virtualbox Ref #1987
125 lines
3.1 KiB
C++
125 lines
3.1 KiB
C++
/*
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* \brief Connection to Nitpicker service
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* \author Norman Feske
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* \date 2008-08-22
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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__NITPICKER_SESSION__CONNECTION_H_
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#define _INCLUDE__NITPICKER_SESSION__CONNECTION_H_
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#include <nitpicker_session/client.h>
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#include <framebuffer_session/client.h>
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#include <input_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 Nitpicker { class Connection; }
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class Nitpicker::Connection : public Genode::Connection<Session>,
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public Session_client
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{
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private:
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Framebuffer::Session_client _framebuffer;
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Input::Session_client _input;
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Genode::size_t _session_quota = 0;
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/**
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* Create session and return typed session capability
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*/
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Session_capability _connect(Genode::Parent &parent, char const *label)
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{
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enum { ARGBUF_SIZE = 128 };
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char argbuf[ARGBUF_SIZE];
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argbuf[0] = 0;
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if (Genode::strlen(label) > 0)
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Genode::snprintf(argbuf, sizeof(argbuf), "label=\"%s\"", label);
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/*
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* Declare ram-quota donation
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*/
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using Genode::Arg_string;
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enum { SESSION_METADATA = 36*1024 };
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Arg_string::set_arg(argbuf, sizeof(argbuf), "ram_quota", SESSION_METADATA);
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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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Connection(Genode::Env &env, char const *label = "")
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:
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/* establish nitpicker session */
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Genode::Connection<Session>(env, _connect(env.parent(), label)),
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Session_client(cap()),
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/* request frame-buffer and input sub sessions */
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_framebuffer(framebuffer_session()),
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_input(env, input_session())
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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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Connection(char const *label = "")
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:
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/* establish nitpicker session */
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Genode::Connection<Session>(_connect(*Genode::env()->parent(), label)),
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Session_client(cap()),
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/* request frame-buffer and input sub sessions */
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_framebuffer(framebuffer_session()),
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_input(input_session())
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{ }
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void buffer(Framebuffer::Mode mode, bool use_alpha)
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{
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enum { ARGBUF_SIZE = 128 };
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char argbuf[ARGBUF_SIZE];
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argbuf[0] = 0;
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Genode::size_t const needed = ram_quota(mode, use_alpha);
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Genode::size_t const upgrade = needed > _session_quota
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? needed - _session_quota
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: 0;
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if (upgrade > 0) {
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Genode::Arg_string::set_arg(argbuf, sizeof(argbuf), "ram_quota",
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upgrade);
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Genode::env()->parent()->upgrade(cap(), argbuf);
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_session_quota += upgrade;
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}
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Session_client::buffer(mode, use_alpha);
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}
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/**
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* Return sub session for Nitpicker's input service
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*/
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Input::Session_client *input() { return &_input; }
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/**
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* Return sub session for session's frame buffer
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*/
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Framebuffer::Session *framebuffer() { return &_framebuffer; }
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};
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#endif /* _INCLUDE__NITPICKER_SESSION__CONNECTION_H_ */
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