83 lines
3.4 KiB
C++
83 lines
3.4 KiB
C++
/*
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* Copyright (c) 2010 ARM Limited
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* All rights reserved
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*
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* The license below extends only to copyright in the software and shall
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* not be construed as granting a license to any other intellectual
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* property including but not limited to intellectual property relating
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* to a hardware implementation of the functionality of the software
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* licensed hereunder. You may use the software subject to the license
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* terms below provided that you ensure that this notice is replicated
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* unmodified and in its entirety in all distributions of the software,
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* modified or unmodified, in source code or in binary form.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met: 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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* 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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* neither the name of the copyright holders nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* Authors: William Wang
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* Ali Saidi
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*/
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#include <cassert>
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#include "base/bitmap.hh"
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#include "base/misc.hh"
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// bitmap class ctor
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Bitmap::Bitmap(VideoConvert::Mode _mode, uint16_t w, uint16_t h, uint8_t *d)
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: mode(_mode), height(h), width(w), data(d),
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vc(mode, VideoConvert::rgb8888, width, height)
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{
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}
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void
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Bitmap::write(std::ostream *bmp)
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{
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assert(data);
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// For further information see: http://en.wikipedia.org/wiki/BMP_file_format
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Magic magic = {{'B','M'}};
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Header header = {sizeof(VideoConvert::Rgb8888) * width * height , 0, 0, 54};
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Info info = {sizeof(Info), width, height, 1,
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sizeof(VideoConvert::Rgb8888) * 8, 0,
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sizeof(VideoConvert::Rgb8888) * width * height, 1, 1, 0, 0};
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bmp->write(reinterpret_cast<char*>(&magic), sizeof(magic));
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bmp->write(reinterpret_cast<char*>(&header), sizeof(header));
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bmp->write(reinterpret_cast<char*>(&info), sizeof(info));
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uint8_t *tmp = vc.convert(data);
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uint32_t *tmp32 = (uint32_t*)tmp;
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// BMP start store data left to right starting with the bottom row
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// so we need to do some creative flipping
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for (int i = height - 1; i >= 0; i--)
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for (int j = 0; j < width; j++)
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bmp->write((char*)&tmp32[i * width + j], sizeof(uint32_t));
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bmp->flush();
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delete [] tmp;
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}
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