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/*
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/*
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 * Copyright (C) 2022 by Andreas Theofilu <andreas@theosys.at>
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 * Copyright (C) 2023 by Andreas Theofilu <andreas@theosys.at>
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 *
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 *
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 * This program is free software; you can redistribute it and/or modify
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 * This program is free software; you can redistribute it and/or modify
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 * it under the terms of the GNU General Public License as published by
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 * it under the terms of the GNU General Public License as published by
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 * the Free Software Foundation; either version 3 of the License, or
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 * the Free Software Foundation; either version 3 of the License, or
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 * (at your option) any later version.
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 * (at your option) any later version.
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 * You should have received a copy of the GNU General Public License
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 * You should have received a copy of the GNU General Public License
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 * along with this program; if not, write to the Free Software Foundation,
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 * along with this program; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301  USA
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 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301  USA
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 */
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 */
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#include <string.h>
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#include <cstring>
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#include "tbitmap.h"
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#include "tbitmap.h"
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#include "terror.h"
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#include "terror.h"
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TBitmap::TBitmap()
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TBitmap::TBitmap()
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TBitmap::TBitmap(const TBitmap& bm)
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TBitmap::TBitmap(const TBitmap& bm)
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{
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{
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    DECL_TRACER("TBitmap::TBitmap(const TBitmap& bm)");
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    DECL_TRACER("TBitmap::TBitmap(const TBitmap& bm)");
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    if (mData)
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    {
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        delete[] mData;
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        mData = nullptr;
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        mSize = 0;
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    }
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    if (bm.mSize > 0)
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    if (bm.mSize > 0)
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    {
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    {
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        mData = new unsigned char[bm.mSize];
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        mData = new unsigned char[bm.mSize];
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        memmove(mData, bm.mData, bm.mSize);
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        memmove(mData, bm.mData, bm.mSize);
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        mSize = bm.mSize;
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        mSize = bm.mSize;
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    int width = pl / mPixelSize;
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    int width = pl / mPixelSize;
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    int height = mSize / pl;
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    int height = mSize / pl;
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    if ((size_t)(height * pl) > mSize)
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    if ((size_t)(height * pl) > mSize)
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    {
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    {
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        MSG_ERROR("Number of pixels exceeds the allocated size of image!");
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        MSG_ERROR("TBitmap::setPixline: Number of pixels exceeds the allocated size of image!");
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        return;
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        return;
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    }
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    }
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    mPixline = pl;
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    mPixline = pl;
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    mWidth = width;
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    mWidth = width;
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void TBitmap::setBitmap(const unsigned char* data, size_t size)
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void TBitmap::setBitmap(const unsigned char* data, size_t size)
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{
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{
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    DECL_TRACER("TBitmap::setBitmap(unsigned char* data, size_t size)");
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    DECL_TRACER("TBitmap::setBitmap(unsigned char* data, size_t size)");
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    clear();
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    if (!data || !size)
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    if (!data || !size)
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        return;
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        return;
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    if (mData)
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        delete[] mData;
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    mData = new unsigned char [size];
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    mData = new unsigned char [size];
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    memmove(mData, data, size);
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    memmove(mData, data, size);
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    mSize = size;
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    mSize = size;
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}
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}
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void TBitmap::setBitmap(const unsigned char* data, int width, int height, int pixsize)
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void TBitmap::setBitmap(const unsigned char* data, int width, int height, int pixsize)
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{
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{
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    DECL_TRACER("TBitmap::setBitmap(const unsigned char* data, int width, int height, int pixsize)");
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    DECL_TRACER("TBitmap::setBitmap(const unsigned char* data, int width, int height, int pixsize)");
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    clear();
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    if (!data || width <= 0 || height <= 0 || pixsize < 1)
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    if (!data || width <= 0 || height <= 0 || pixsize < 1)
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        return;
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        return;
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    if (mData)
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        delete[] mData;
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    mSize = (width * pixsize) * height;
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    mSize = (width * pixsize) * height;
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    mData = new unsigned char[mSize];
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    mData = new unsigned char[mSize];
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    memmove(mData, data, mSize);
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    memmove(mData, data, mSize);
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    mPixelSize = pixsize;
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    mPixelSize = pixsize;
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    mPixline = width * pixsize;
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    mPixline = width * pixsize;
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    mPixelSize = ps;
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    mPixelSize = ps;
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    mPixline = pixline;
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    mPixline = pixline;
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    mHeight = mSize / pixline;
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    mHeight = mSize / pixline;
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}
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}
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bool TBitmap::isValid()
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{
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    DECL_TRACER("TBitmap::isValid()");
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    if (!mData)         // If there is no data, the content is invalid.
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        return false;
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    // Here we make sure the stored values are totaly valid.
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    // First we check that there is potential content.
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    if (mSize > 0 && mPixline > 0 && mPixelSize > 0)    // Content?
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    {                                                   // Yes, then validate it ...
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        int pxl = mWidth * mPixelSize;                  // Calculate the pixels per line
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        size_t s = (size_t)(pxl * mHeight);             // Calculate the minimum size of buffer
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        if (pxl == mPixline && s <= mSize)              // Compare the pixels per line and the allocated buffer size
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            return true;                                // Everything is plausible.
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    }
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    return false;                                       // Some values failed!
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}
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void TBitmap::clear()
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{
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    DECL_TRACER("TBitmap::clear()");
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    if (mData)
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    {
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        delete[] mData;
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        mData = nullptr;
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    }
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    mSize = 0;
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    mPixline = mWidth = mHeight = 0;
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    mPixelSize = 4;
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}