Christian Prochaska
9 years ago
committed by
Christian Helmuth
parent
4539eb7512
commit
363ffe40a0
@ -1,286 +0,0 @@
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/*
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* \brief Slave policy for an undecorated window
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* \author Christian Prochaska
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* \date 2013-05-08
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*/
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/*
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* Copyright (C) 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 _UNDECORATED_WINDOW_POLICY_H_
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#define _UNDECORATED_WINDOW_POLICY_H_
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/* Qt4 includes */
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#include <QDebug>
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#include <QDomDocument>
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#include <QDomElement>
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#include <QDomText>
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/* Genode includes */
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#include <cap_session/connection.h>
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#include <framebuffer_session/client.h>
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#include <input/event.h>
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#include <input_session/client.h>
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#include <os/slave.h>
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using Genode::Root_capability;
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using Genode::Allocator;
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using Genode::Server;
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using Genode::env;
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using Genode::Lock_guard;
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using Genode::Lock;
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using Genode::Signal_context;
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using Genode::Signal_receiver;
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using Genode::Signal_context_capability;
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using Genode::Dataspace_capability;
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static const bool wsp_verbose = false;
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class Window_slave_policy : public Genode::Slave_policy
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{
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private:
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Framebuffer::Session_capability _framebuffer_session;
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Genode::Lock _framebuffer_ready_lock;
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unsigned char *_framebuffer;
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Signal_context _mode_change_signal_context;
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Signal_receiver _signal_receiver;
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Input::Session_capability _input_session;
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Genode::Lock _input_ready_lock;
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Input::Event *_ev_buf;
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QByteArray _config_byte_array;
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const char *_config(int xpos, int ypos, int width, int height,
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const char *title, bool resize_handle = true,
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bool decoration = true)
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{
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QDomDocument config_doc;
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QDomElement config_node = config_doc.createElement("config");
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config_doc.appendChild(config_node);
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config_node.setAttribute("xpos", QString::number(xpos));
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config_node.setAttribute("ypos", QString::number(ypos + TITLE_BAR_HEIGHT));
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config_node.setAttribute("width", QString::number(width));
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config_node.setAttribute("height", QString::number(height));
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/* liquid_framebuffer options */
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config_node.setAttribute("title", title);
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config_node.setAttribute("animate", "off");
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if (resize_handle)
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config_node.setAttribute("resize_handle", "on");
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else
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config_node.setAttribute("resize_handle", "off");
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if (decoration)
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config_node.setAttribute("decoration", "on");
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else
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config_node.setAttribute("decoration", "off");
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_config_byte_array = config_doc.toByteArray(4);
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if (wsp_verbose)
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qDebug() << _config_byte_array;
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return _config_byte_array.constData();
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}
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void _reattach_framebuffer()
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{
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Framebuffer::Session_client session_client(_framebuffer_session);
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if (_framebuffer)
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Genode::env()->rm_session()->detach(_framebuffer);
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Dataspace_capability framebuffer_ds = session_client.dataspace();
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if (framebuffer_ds.valid()) {
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_framebuffer = Genode::env()->rm_session()->attach(framebuffer_ds);
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Framebuffer::Mode const scr_mode = session_client.mode();
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if (wsp_verbose)
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PDBG("_framebuffer = %p, width = %d, height = %d", _framebuffer, scr_mode.width(), scr_mode.height());
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}
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else
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_framebuffer = 0;
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}
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protected:
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const char **_permitted_services() const
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{
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static const char *permitted_services[] = {
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"CAP", "LOG", "RM", "ROM", "SIGNAL",
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"Timer", "Nitpicker", 0 };
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return permitted_services;
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};
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public:
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/* scout widgets title bar height */
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enum { TITLE_BAR_HEIGHT = 32 };
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Window_slave_policy(Genode::Rpc_entrypoint &ep,
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int screen_width, int screen_height)
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: Genode::Slave_policy("liquid_fb", ep, env()->ram_session()),
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_framebuffer_ready_lock(Genode::Lock::LOCKED),
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_framebuffer(0), _ev_buf(0)
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{
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/* start with an invisible window by placing it outside of the screen area */
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Slave_policy::configure(_config(100000, 0, screen_width, screen_height, "Qt window"));
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}
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~Window_slave_policy()
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{
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if (_framebuffer)
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Genode::env()->rm_session()->detach(_framebuffer);
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if (_ev_buf)
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Genode::env()->rm_session()->detach(_ev_buf);
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}
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bool announce_service(const char *name,
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Root_capability root,
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Allocator *alloc,
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Server *server)
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{
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if (wsp_verbose)
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PDBG("name = %s", name);
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if (Genode::strcmp(name, "Input") == 0) {
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Genode::Session_capability session_cap =
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Genode::Root_client(root).session("ram_quota=8K",
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Genode::Affinity());
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_input_session =
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Genode::static_cap_cast<Input::Session>(session_cap);
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Input::Session_client session_client(_input_session);
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_ev_buf = static_cast<Input::Event *>
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(env()->rm_session()->attach(session_client.dataspace()));
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_input_ready_lock.unlock();
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return true;
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}
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if (Genode::strcmp(name, "Framebuffer") == 0) {
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Genode::Session_capability session_cap =
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Genode::Root_client(root).session("ram_quota=8K",
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Genode::Affinity());
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_framebuffer_session =
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Genode::static_cap_cast<Framebuffer::Session>(session_cap);
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Framebuffer::Session_client session_client(_framebuffer_session);
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_framebuffer = Genode::env()->rm_session()->attach(session_client.dataspace());
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Signal_context_capability mode_change_signal_context_capability =
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_signal_receiver.manage(&_mode_change_signal_context);
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session_client.mode_sigh(mode_change_signal_context_capability);
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Framebuffer::Mode const scr_mode = session_client.mode();
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if (wsp_verbose)
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PDBG("_framebuffer = %p, width = %d, height = %d", _framebuffer, scr_mode.width(), scr_mode.height());
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_framebuffer_ready_lock.unlock();
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return true;
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}
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return Slave_policy::announce_service(name, root, alloc, server);
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}
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void wait_for_service_announcements()
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{
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Lock_guard<Lock> framebuffer_ready_lock_guard(_framebuffer_ready_lock);
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Lock_guard<Lock> input_ready_lock_guard(_input_ready_lock);
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}
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void configure(int x, int y, int width, int height, const char *title,
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bool resize_handle, bool decoration)
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{
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Slave_policy::configure(_config(x, y, width, height, title, resize_handle, decoration));
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if (wsp_verbose)
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PDBG("waiting for mode change signal");
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_signal_receiver.wait_for_signal();
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if (wsp_verbose)
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PDBG("received mode change signal");
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_reattach_framebuffer();
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}
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/*
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* Return the current window size
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*/
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void size(int &width, int &height)
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{
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Framebuffer::Session_client session_client(_framebuffer_session);
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Framebuffer::Mode const scr_mode = session_client.mode();
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width = scr_mode.width();
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height = scr_mode.height();
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}
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unsigned char *framebuffer()
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{
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return _framebuffer;
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}
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void refresh(int x, int y, int w, int h)
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{
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Framebuffer::Session_client session_client(_framebuffer_session);
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session_client.refresh(x, y, w, h);
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}
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bool mode_changed()
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{
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bool result = false;
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while (_signal_receiver.pending()) {
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_signal_receiver.wait_for_signal();
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result = true;
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}
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if (result == true)
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_reattach_framebuffer();
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return result;
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}
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Input::Session_capability input_session()
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{
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return _input_session;
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}
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Input::Event *ev_buf()
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{
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return _ev_buf;
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}
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};
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#endif /* _UNDECORATED_WINDOW_POLICY_H_ */
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