realised im basically just implementing the PGE so ill just use that instead

legacy/src/framebuffer.cpp

@@ -0,0 +1,83 @@
+#include "framebuffer.hpp"
+
+#include <memory>
+
+#define STB_IMAGE_WRITE_IMPLEMENTATION
+#include "thirdparty/stb_image_write.h"
+
+FrameBuffer::FrameBuffer( int width, int height )
+	: mWidth(width)
+	, mHeight(height) 
+{
+
+	size_t size = sizeof( uint32_t ) * mWidth * mHeight;
+
+	Data = (uint32_t*)malloc( size );
+
+	// Initialise the framebuffer
+	if ( Data != nullptr )
+		memset( Data, 0xFFFFFFFF, size );
+}
+
+void FrameBuffer::SetPixel( int x, int y, glm::vec3 p )
+{
+	int i = y * mWidth + x;
+	const static float gamma = 1.0f / 2.2f;
+	uint8_t r = (uint8_t)( pow( p.r, gamma ) * 255.0f );
+	uint8_t g = (uint8_t)( pow( p.g, gamma ) * 255.0f );
+	uint8_t b = (uint8_t)( pow( p.b, gamma ) * 255.0f );
+	uint32_t col = r << 24 | g << 16 | b << 8 | 0xFF;
+	Data[i] = col;
+}
+
+void FrameBuffer::Resize( int width, int height )
+{
+	mWidth = width; mHeight = height;
+
+	size_t size = sizeof( uint32_t ) * mWidth * mHeight;
+
+	realloc( Data, size );
+	memset( Data, 0xFFFFFFFF, size );
+}
+
+void FrameBuffer::DumpToFile( std::string file )
+{
+	// int stbi_write_png(char const* filename, int w, int h, int comp, const void* data, int stride_in_bytes);
+	struct P {
+		unsigned char r, g, b, a;
+	};
+
+	P* imageData = (P*)malloc( ( (int)mWidth * (int)mHeight ) * sizeof( P ) );
+
+	for ( int x = 0; x < mWidth; x++ )
+		for ( int y = 0; y < mHeight; y++ ) {
+			// Red and Blue channels need to be swapped, no clue why
+			// saving the framebuffer just doesnt work
+
+			//nvm it just doesnt work
+			uint32_t pixel = Data[y * mWidth + x];
+			uint8_t er = ( pixel & 0x0000FF00 );
+			uint8_t eg = ( pixel & 0x00FF0000 ) >> 8;
+			uint8_t eb = ( pixel & 0xFF0000FF ) >> 16;
+
+			imageData[y * mWidth + x] = P{ (unsigned char)er, (unsigned char)eg, (unsigned char)eb, 0xFF };
+		}
+
+	stbi_write_png( file.c_str(), mWidth, mHeight, sizeof( P ), imageData, sizeof( P ) * mWidth );
+	free( imageData );
+}
+
+int FrameBuffer::GetWidth()
+{
+	return mWidth;
+}
+
+int FrameBuffer::GetHeight()
+{
+	return mHeight;
+}
+
+FrameBuffer::~FrameBuffer()
+{
+	free( Data );
+}