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Diffstat (limited to 'src/base/bitmap.cc')
| -rw-r--r-- | src/base/bitmap.cc | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/src/base/bitmap.cc b/src/base/bitmap.cc new file mode 100644 index 000000000..0d2a9302b --- /dev/null +++ b/src/base/bitmap.cc @@ -0,0 +1,82 @@ +/* + * Copyright (c) 2010 ARM Limited + * All rights reserved + * + * The license below extends only to copyright in the software and shall + * not be construed as granting a license to any other intellectual + * property including but not limited to intellectual property relating + * to a hardware implementation of the functionality of the software + * licensed hereunder. You may use the software subject to the license + * terms below provided that you ensure that this notice is replicated + * unmodified and in its entirety in all distributions of the software, + * modified or unmodified, in source code or in binary form. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer; + * redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution; + * neither the name of the copyright holders nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * Authors: William Wang + * Ali Saidi + */ + +#include <cassert> + +#include "base/bitmap.hh" +#include "base/misc.hh" + +// bitmap class ctor +Bitmap::Bitmap(VideoConvert::Mode _mode, uint16_t w, uint16_t h, uint8_t *d) + : mode(_mode), height(h), width(w), data(d), + vc(mode, VideoConvert::rgb8888, width, height) +{ +} + +void +Bitmap::write(std::ostream *bmp) +{ + assert(data); + + // For further information see: http://en.wikipedia.org/wiki/BMP_file_format + Magic magic = {{'B','M'}}; + Header header = {sizeof(VideoConvert::Rgb8888) * width * height , 0, 0, 54}; + Info info = {sizeof(Info), width, height, 1, + sizeof(VideoConvert::Rgb8888) * 8, 0, + sizeof(VideoConvert::Rgb8888) * width * height, 1, 1, 0, 0}; + + bmp->write(reinterpret_cast<char*>(&magic), sizeof(magic)); + bmp->write(reinterpret_cast<char*>(&header), sizeof(header)); + bmp->write(reinterpret_cast<char*>(&info), sizeof(info)); + + uint8_t *tmp = vc.convert(data); + uint32_t *tmp32 = (uint32_t*)tmp; + + // BMP start store data left to right starting with the bottom row + // so we need to do some creative flipping + for (int i = height - 1; i >= 0; i--) + for (int j = 0; j < width; j++) + bmp->write((char*)&tmp32[i * width + j], sizeof(uint32_t)); + + bmp->flush(); + + delete [] tmp; +} + |