diff --git a/repos/os/src/test/capture/main.cc b/repos/os/src/test/capture/main.cc new file mode 100644 index 0000000000..34317bd0ea --- /dev/null +++ b/repos/os/src/test/capture/main.cc @@ -0,0 +1,236 @@ +/* + * \brief Capture test + * \author Norman Feske + * \date 2020-06-26 + */ + +/* + * Copyright (C) 2020 Genode Labs GmbH + * + * This file is part of the Genode OS framework, which is distributed + * under the terms of the GNU Affero General Public License version 3. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +namespace Test { + + using namespace Genode; + + struct View; + struct Main; +} + + +class Test::View +{ + private: + + using View_handle = Gui::Session::View_handle; + + Gui::Session_client &_gui; + View_handle const _handle = _gui.create_view(View_handle{}); + Gui::Rect const _rect; + + public: + + View(Gui::Session_client &gui, Gui::Rect rect) : _gui(gui), _rect(rect) + { + using Command = Gui::Session::Command; + + _gui.enqueue(_handle, rect); + _gui.enqueue(_handle, View_handle()); + _gui.execute(); + } + + virtual ~View() { } +}; + + +struct Test::Main +{ + Env &_env; + + using Pixel = Capture::Pixel; + using Affected_rects = Capture::Session::Affected_rects; + + Attached_rom_dataspace _config { _env, "config" }; + + Heap _heap { _env.ram(), _env.rm() }; + + static Gui::Point _point_from_xml(Xml_node node) + { + return Gui::Point(node.attribute_value("xpos", 0L), + node.attribute_value("ypos", 0L)); + } + + static Gui::Area _area_from_xml(Xml_node node, Gui::Area default_area) + { + return Gui::Area(node.attribute_value("width", default_area.w()), + node.attribute_value("height", default_area.h())); + } + + struct Output + { + struct Invalid_config : Exception { }; + + Env &_env; + + Allocator &_alloc; + + Gui::Connection _gui { _env, "" }; + + Framebuffer::Mode const _mode; + + void _validate_mode() const + { + if (_mode.area.count() == 0) { + error("invalid or missing 'width' and 'height' config attributes"); + throw Invalid_config(); + } + } + + bool _gui_buffer_init = ( _validate_mode(), _gui.buffer(_mode, false), true ); + + Attached_dataspace _fb_ds { _env.rm(), _gui.framebuffer()->dataspace() }; + + Registry> _views { }; + + Output(Env &env, Allocator &alloc, Xml_node const &config) + : + _env(env), _alloc(alloc), + _mode({ .area = _area_from_xml(config, Area { }) }) + { + auto view_rect = [&] (Xml_node node) + { + return Gui::Rect(_point_from_xml(node), + _area_from_xml(node, _mode.area)); + }; + + config.for_each_sub_node("view", [&] (Xml_node node) { + new (_alloc) + Registered(_views, _gui, view_rect(node)); }); + } + + ~Output() + { + _views.for_each([&] (Registered &view) { + destroy(_alloc, &view); }); + } + + template + void with_surface(FN const &fn) + { + Surface surface(_fb_ds.local_addr(), _mode.area); + + fn(surface); + } + }; + + Constructible _output { }; + + struct Capture_input + { + Env &_env; + + Gui::Area const _area; + + Capture::Connection _capture { _env, "" }; + + bool _capture_buffer_init = ( _capture.buffer(_area), true ); + + Attached_dataspace _capture_ds { _env.rm(), _capture.dataspace() }; + + Texture const _texture { _capture_ds.local_addr(), nullptr, _area }; + + Gui::Point _at { }; + + Capture_input(Env &env, Gui::Area area, Xml_node const &config) + : + _env(env), _area(area), _at(_point_from_xml(config)) + { } + + Affected_rects capture() { return _capture.capture_at(_at); } + + template + void with_texture(FN const &fn) const + { + fn(_texture); + } + }; + + Constructible _capture_input { }; + + /* + * Periodic update + */ + + Timer::Connection _timer { _env }; + + Signal_handler
_timer_handler { _env.ep(), *this, &Main::_handle_timer }; + + void _handle_timer() + { + if (!_capture_input.constructed() || !_output.constructed()) + return; + + _capture_input->with_texture([&] (Texture const &texture) { + + _output->with_surface([&] (Surface &surface) { + + Affected_rects const affected = _capture_input->capture(); + + affected.for_each_rect([&] (Gui::Rect const rect) { + + surface.clip(rect); + + Blit_painter::paint(surface, texture, Gui::Point(0, 0)); + }); + + affected.for_each_rect([&] (Gui::Rect const rect) { + _output->_gui.framebuffer()->refresh(rect.x1(), rect.y1(), + rect.w(), rect.h()); + }); + }); + }); + + } + + void _handle_config() + { + _config.update(); + + Xml_node const config = _config.xml(); + + _output.construct(_env, _heap, config); + _capture_input.construct(_env, _output->_mode.area, config); + + unsigned long const period_ms = config.attribute_value("period_ms", 0U); + + if (period_ms == 0) + warning("missing or invalid 'period_ms' config attribute"); + + _timer.trigger_periodic(1000*period_ms); + } + + Signal_handler
_config_handler { _env.ep(), *this, &Main::_handle_config }; + + Main(Env &env) : _env(env) + { + _timer.sigh(_timer_handler); + _config.sigh(_config_handler); + + _handle_config(); + } +}; + + +void Component::construct(Genode::Env &env) { static Test::Main main(env); } diff --git a/repos/os/src/test/capture/target.mk b/repos/os/src/test/capture/target.mk new file mode 100644 index 0000000000..1053cd7e97 --- /dev/null +++ b/repos/os/src/test/capture/target.mk @@ -0,0 +1,3 @@ +TARGET = test-capture +SRC_CC = main.cc +LIBS = base blit