Text-Renderer/src/Bitmap.cpp

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#include "Bitmap.h"
#include <fstream>
#include <iostream>
Bitmap::Bitmap() {
offset = 0;
width = 0;
height = 0;
bpp = 0;
}
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Bitmap::Bitmap(const std::string &file) {
offset = 0;
width = 0;
height = 0;
bpp = 0;
load(file);
}
void Bitmap::load(const std::string &file) {
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std::ifstream stream;
stream.open(file);
if(stream.is_open()){
std::string str((std::istreambuf_iterator<char>(stream)),std::istreambuf_iterator<char>());
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data.resize(str.size());
for(int i = 0; i < str.size();i++){
data[i] = str[i];
}
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offset = (int)*(unsigned int*)(&data[10]);
width = (int)*(unsigned int*)(&data[18]);
height = (int)*(unsigned int*)(&data[22]);
bpp = (int)*(unsigned short*)(&data[28]);
}
}
int Bitmap::getWidth() {
return width;
}
int Bitmap::getHeight() {
return height;
}
char *Bitmap::getData() {
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return &data[offset];
}
int Bitmap::getBitsPerPixel() {
return bpp;
}
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unsigned int Bitmap::getPixel(int x, int y) {
unsigned int pixel = 0;
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char *ptr = getData() + ((getHeight() - 1 - y) * getWidth() + x) * (getBitsPerPixel() / 8);
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for(int i = 0; i < getBitsPerPixel() / 8;i++){
*((char*)&pixel+i) = ptr[i];
}
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if(pixel != 0){
return pixel;
}
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return pixel;
}