Landfall

Annotated pkg/devices/fb/include/fb-server.h

141:7aa21a758551
2022-09-27 Paul Boddie Fixed architecture-specific build directory detection.
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/*
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 * Common framebuffer server functionality.
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 *
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 * Copyright (C) 2018 Paul Boddie <paul@boddie.org.uk>
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 *
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 * This program is free software; you can redistribute it and/or
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 * modify it under the terms of the GNU General Public License as
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 * published by the Free Software Foundation; either version 2 of
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 * the License, or (at your option) any later version.
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 *
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 * This program is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 * GNU General Public License for more details.
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 *
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 * You should have received a copy of the GNU General Public License
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 * along with this program; if not, write to the Free Software
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 * Foundation, Inc., 51 Franklin Street, Fifth Floor,
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 * Boston, MA  02110-1301, USA
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 */
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#pragma once
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#ifdef __cplusplus
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#include <l4/cxx/ipc_server>
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#include <l4/re/dataspace>
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#include <l4/re/env>
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#include <l4/re/c/video/view.h>
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#include <l4/sys/types.h>
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/* Server object to provide framebuffer data access. */
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class Framebuffer_server : public L4::Server_object_t<L4::Kobject>
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{
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private:
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  L4::Cap<L4Re::Dataspace> _mem;
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public:
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  /* Initialise the server with a capability referencing the exported memory. */
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  explicit Framebuffer_server(L4::Cap<L4Re::Dataspace> mem)
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  : _mem(mem)
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  {}
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  int dispatch(l4_umword_t obj, L4::Ipc::Iostream &ios);
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  /* Operation methods. */
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  virtual l4_size_t get_framebuffer_size() = 0;
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  virtual void get_view_info(l4re_video_view_info_t *view_info) = 0;
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};
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#endif