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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
*/
#ifndef __BASE_BITMAP_HH__
#define __BASE_BITMAP_HH__
#include <ostream>
#include "base/compiler.hh"
#include "base/vnc/convert.hh"
/**
* @file Declaration of a class that writes a frame buffer to a bitmap
*/
// write frame buffer into a bitmap picture
class Bitmap
{
public:
/**
* Create a bitmap that takes data in a given mode & size and
* outputs to an ostream.
*
* @param mode the type of data that is being provided
* @param h the hight of the image
* @param w the width of the image
* @param d the data for the image in mode
*/
Bitmap(VideoConvert::Mode mode, uint16_t w, uint16_t h, uint8_t *d);
~Bitmap();
/**
* Provide the converter with the data that should be output. It
* will be converted into rgb8888 and written when write() is
* called.
*
* @param d the data
*/
void rawData(uint8_t* d) { data = d; }
/**
* Write the frame buffer data into the provided ostream
*
* @param bmp stream to write to
*/
void write(std::ostream *bmp) const;
/**
* Gets a hash over the bitmap for quick comparisons to other bitmaps.
*
* @return hash of the bitmap
*/
uint64_t getHash() const { return vc.getHash(data); }
private:
struct FileHeader {
unsigned char magic_number[2];
uint32_t size;
uint16_t reserved1;
uint16_t reserved2;
uint32_t offset;
} M5_ATTR_PACKED;
struct InfoHeaderV1 { /* Aka DIB header */
uint32_t Size;
uint32_t Width;
uint32_t Height;
uint16_t Planes;
uint16_t BitCount;
uint32_t Compression;
uint32_t SizeImage;
uint32_t XPelsPerMeter;
uint32_t YPelsPerMeter;
uint32_t ClrUsed;
uint32_t ClrImportant;
} M5_ATTR_PACKED;
struct CompleteV1Header {
FileHeader file;
InfoHeaderV1 info;
} M5_ATTR_PACKED;
typedef uint32_t PixelType;
const CompleteV1Header getCompleteHeader() const;
const uint16_t height;
const uint16_t width;
const CompleteV1Header header;
uint8_t *data;
VideoConvert vc;
};
#endif // __BASE_BITMAP_HH__
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