feat: Made it so that you can now convert between image subclasses

Also added the bitmap image subclass
note: this is pretty hacky in how it works

1 files changed, 49 insertions, 0 deletions

diff --git a/src/BMPImage.cpp b/src/BMPImage.cpp
new file mode 100644
index 0000000..71e5317
--- /dev/null
+++ b/src/BMPImage.cpp
@@ -0,0 +1,49 @@
+#include "BMPImage.h"
+
+#include <iostream>
+
+using std::cout, std::endl;
+
+int BMPImage::readFromFile(std::string filename)
+{
+	cout << "Not implemented" << endl;
+	return 2;
+};
+
+int BMPImage::writeToFile(std::string filename)
+{
+	FILE* fd = fopen(filename.c_str(), "w");
+	char magic[] = "BM";
+	fwrite(magic, sizeof(char), 2, fd);
+	uint32_t fileSize = 14 + 12 + width*height*/*(bitDepth/8)*/8*3;
+	fwrite(&fileSize, sizeof(uint32_t), 1, fd);
+	char zero[] = "\0\0\0\0";
+	fwrite(zero, sizeof(char), 4, fd);
+	uint32_t offset = 26;
+	fwrite(&offset, sizeof(uint32_t), 1, fd);
+	uint32_t headerSize = 12;
+	fwrite(&headerSize, sizeof(uint32_t), 1, fd);
+	uint16_t width = this->width;
+	uint16_t height = this->height;
+	uint16_t colorPlanes = 1;
+	uint16_t bitsPerPixel = /*bitDepth*/8*3;
+	fwrite(&width, sizeof(uint16_t), 1, fd);
+	fwrite(&height, sizeof(uint16_t), 1, fd);
+	fwrite(&colorPlanes, sizeof(uint16_t), 1, fd);
+	fwrite(&bitsPerPixel, sizeof(uint16_t), 1, fd);
+
+	for(int y = height-1; y >= 0; y--)
+	{
+		for(int x = 0; x < width; x++)
+		{
+			Pixel<uint8_t> pixel = getPixel<uint8_t>(x, y);
+			fwrite(&pixel.b, bitDepth/8, 1, fd);
+			fwrite(&pixel.g, bitDepth/8, 1, fd);
+			fwrite(&pixel.r, bitDepth/8, 1, fd);
+		}
+	}
+
+	fclose(fd);
+	
+	return 0;
+};