55 lines
1.1 KiB
C++
55 lines
1.1 KiB
C++
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#include "Bitmap.h"
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#include <fstream>
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#include <iostream>
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Bitmap::Bitmap() {
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offset = 0;
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width = 0;
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height = 0;
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bpp = 0;
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data = nullptr;
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}
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Bitmap::~Bitmap() {
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if(data){
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delete data;
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data = nullptr;
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}
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}
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void Bitmap::load(const std::string &file) {
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std::ifstream stream(file);
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if(stream.is_open()){
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std::string str((std::istreambuf_iterator<char>(stream)),std::istreambuf_iterator<char>());
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data = new char[str.size()];
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for(int i = 0; i < str.size();i++){
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data[i] = str[i];
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}
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offset = *(unsigned int*)(data + 10);
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width = *(unsigned int*)(data + 18);
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height = *(unsigned int*)(data + 22);
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bpp = *(unsigned short*)(data + 28);
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}
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}
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int Bitmap::getWidth() {
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return width;
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}
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int Bitmap::getHeight() {
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return height;
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}
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char *Bitmap::getData() {
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return data + offset;
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}
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int Bitmap::getBitsPerPixel() {
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return bpp;
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}
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char *Bitmap::getPixel(int x, int y) {
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return getData() + ((getHeight() - y) * getWidth() + x) * getBitsPerPixel() / 8;
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}
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