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/*
* Copyright (c) 2010, 2015 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
* Chris Emmons
* Andreas Sandberg
*/
#include "base/bitmap.hh"
#include <cassert>
#include "base/misc.hh"
// bitmap class ctor
Bitmap::Bitmap(VideoConvert::Mode mode, uint16_t w, uint16_t h, uint8_t *d)
: height(h), width(w),
header(getCompleteHeader()),
data(d),
vc(mode, VideoConvert::rgb8888, width, height)
{
}
Bitmap::~Bitmap()
{
}
const Bitmap::CompleteV1Header
Bitmap::getCompleteHeader() const
{
const uint32_t pixel_array_size(sizeof(PixelType) * width * height);
const uint32_t file_size(sizeof(CompleteV1Header) + pixel_array_size);
const CompleteV1Header header = {
// File header
{
{'B','M'}, /* Magic */
file_size,
0, 0, /* Reserved */
sizeof(CompleteV1Header) /* Offset to pixel array */
},
// Info/DIB header
{
sizeof(InfoHeaderV1),
width,
height,
1, /* Color planes */
32, /* Bits per pixel */
0, /* No compression */
pixel_array_size, /* Image size in bytes */
2835, /* x pixels per meter (assume 72 DPI) */
2835, /* y pixels per meter (assume 72 DPI) */
0, /* Colors in color table */
0 /* Important color count (0 == all are important) */
}
};
return header;
}
void
Bitmap::write(std::ostream *bmp) const
{
assert(data);
// 1. write the header
bmp->write(reinterpret_cast<const char *>(&header), sizeof(header));
// 2. write the bitmap data
const uint8_t *pixels(vc.convert(data));
// BMP start store data left to right starting with the bottom row
// so we need to do some creative flipping
for (int y = height - 1; y >= 0; y--) {
for (int x = 0; x < width; x++) {
bmp->write(
(const char *)&pixels[sizeof(PixelType) * (y * width + x)],
sizeof(PixelType));
}
}
bmp->flush();
delete[] pixels;
}
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