mirror of
https://github.com/outbackdingo/UltraGrid.git
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98 lines
2.8 KiB
C++
98 lines
2.8 KiB
C++
/**
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* @file shared_mem_frame.hpp
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* @author Martin Piatka <piatka@cesnet.cz>
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*/
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/*
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* Copyright (c) 2018 CESNET, z. s. p. o.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, is permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* 3. Neither the name of CESNET nor the names of its contributors may be
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* used to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING,
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* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
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* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
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* EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef SHARED_MEM_FRAME_HPP
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#define SHARED_MEM_FRAME_HPP
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#include <QtCore/QSharedMemory>
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#ifndef GUI_BUILD
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#include "types.h"
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#endif // GUI_BUILD
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struct Shared_mem_frame{
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int width, height;
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bool should_detach;
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unsigned char pixels[];
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};
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class Shared_mem{
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public:
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Shared_mem(const char *key);
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Shared_mem();
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~Shared_mem();
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bool create();
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bool attach();
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bool detach();
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bool is_attached();
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bool lock();
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bool unlock();
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void destroy();
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void setKey(const char *key);
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#ifndef GUI_BUILD
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void put_frame(struct video_frame *frame);
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#endif // GUI_BUILD
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Shared_mem_frame *get_frame_and_lock();
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private:
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size_t mem_size;
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bool locked;
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bool owner;
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QSharedMemory shared_mem;
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#ifndef GUI_BUILD
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void check_reconf(struct video_desc in_desc);
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static const codec_t preview_codec = RGB;
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int scaledW = 0;
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int scaledH = 0;
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int scaleF = 0;
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int scaledW_pad = 0;
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struct video_desc desc = video_desc();
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std::vector<unsigned char> scaled_frame;
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bool reconfiguring = false;
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#endif // GUI_BUILD
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};
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#endif
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