feat: Simplified APIv0.0.1

Had to restrict images to 8 bit depth sadly
This could potentially be changed in the future by setting bit depth
with templates and changing the data to be the specified bit depth

4 files changed, 38 insertions, 53 deletions

diff --git a/src/BMPImage.cpp b/src/BMPImage.cpp
index df2c745..b9b2c96 100644
--- a/src/BMPImage.cpp
+++ b/src/BMPImage.cpp
@@ -39,7 +39,7 @@ int BMPImage::writeToFile(std::string filename)
 	{
 		for(int x = 0; x < width; x++)
 		{
-			Pixel pixel = getPixel(x, y);
+			Pixel& pixel = (*this)[x,y];
 			fwrite(&pixel.b, sizeof(uint8_t), 1, fd);
 			fwrite(&pixel.g, sizeof(uint8_t), 1, fd);
 			fwrite(&pixel.r, sizeof(uint8_t), 1, fd);
diff --git a/src/PNGImage.cpp b/src/PNGImage.cpp
index b6002ca..7df04ad 100644
--- a/src/PNGImage.cpp
+++ b/src/PNGImage.cpp
@@ -78,9 +78,11 @@ bool PNGImage::readNextChunk()
 	char chunkType[4];
 	reader->readBytes(chunkType, 4);
 	std::string chunkName(chunkType, 4);
-	cout << "-------------" << endl;
-	cout << "|Chunk: " << chunkName << "|" << endl;
-	cout << "-------------" << endl;
+	debug(
+		cout << "-------------" << endl;
+		cout << "|Chunk: " << chunkName << "|" << endl;
+		cout << "-------------" << endl;
+		);
 
 	if(chunkReaders.count(chunkName) == 0)
 	{
@@ -117,6 +119,9 @@ DEFINE_CHUNK_READER(IHDR)
 	if(colorType != 2 && colorType != 6)
 		throw std::invalid_argument("Only color types 2 and 6 are supported");
 
+	if(bitDepth != 8)
+		throw std::invalid_argument("Only bit depth of 8 is supported");
+
 	switch(colorType)
 	{
 	case 2: colorValues = 3; break;
@@ -126,12 +131,12 @@ DEFINE_CHUNK_READER(IHDR)
 
 	bpp = colorValues * (bitDepth/8);
 
-	unsigned long imageDataSize = width * height * bpp;
-	//imageDataSize = imageDataSize;
+	// unsigned long imageDataSize = width * height * bpp;
+	// imageDataSize = imageDataSize;
 
-	cout << "Assigning " << imageDataSize << " bytes for image" << endl;
+	// cout << "Assigning " << imageDataSize << " bytes for image" << endl;
 
-	imageData = std::make_unique<uint8_t[]>(imageDataSize);
+	pixels = std::make_unique<Pixel[]>(width * height);
 	
 /*
 	Scanline<RGBPixel<uint8_t>>* lines = new Scanline<RGBPixel<uint8_t>> [height];
@@ -319,11 +324,12 @@ DEFINE_CHUNK_READER(IEND)
 {
 	unsigned long imageDataSize = height * (width * bpp + 1);
 	uint8_t* pngImageData = new uint8_t[imageDataSize];
+	uint8_t* rawImage = new uint8_t[width * height * bpp];
 	cout << "My inflate " << zlib.decodeData(idatData, idatDataSize, pngImageData, imageDataSize) << endl;
 	end = true;
 	reader->close();
 
-#define imageDataIndex(x, y) imageData[y*width*bpp + x]
+#define imageDataIndex(x, y) rawImage[y*width*bpp + x]
 #define pngImageDataIndex(x, y) pngImageData[y*(width*bpp + 1) + x + 1]
 #define filterByte(y) pngImageDataIndex(-1, y)
 
@@ -375,6 +381,19 @@ DEFINE_CHUNK_READER(IEND)
 #undef imageDataIndex
 #undef pngImageDataIndex
 #undef filterByte
+
+	for(int y = 0; y < height; y++)
+	{
+		for(int x = 0; x < width; x++)
+		{
+			(*this)[x, y].r = rawImage[(y*width + x)*colorValues];
+			(*this)[x, y].g = rawImage[(y*width + x)*colorValues + 1*bitDepth/8];
+			(*this)[x, y].b = rawImage[(y*width + x)*colorValues + 2*bitDepth/8];
+			(*this)[x, y].a = (colorValues == 4)?rawImage[(y*width + x)*colorValues]:255;
+			
+		}
+	}
 	
 	delete [] pngImageData;
+	delete [] rawImage;
 }
diff --git a/src/image.cpp b/src/image.cpp
index e23e3f6..77fe63c 100644
--- a/src/image.cpp
+++ b/src/image.cpp
@@ -15,7 +15,11 @@ Image::Image(const Image& other)
 	this->filterMethod = other.filterMethod;
 	this->interlaceMethod = other.interlaceMethod;
 	
-	unsigned long imageDataSize = width * height * bpp;
-	imageData = std::make_unique<uint8_t[]>(imageDataSize);
-	std::copy_n(other.imageData.get(), imageDataSize, imageData.get());
+	pixels = std::make_unique<Pixel[]>(width*height);
+	std::copy_n(other.pixels.get(), width*height, pixels.get());
 }
+
+Pixel& Image::operator[](int x, int y)
+{
+	return pixels[x + y*width];
+};
diff --git a/src/image.h b/src/image.h
index be26437..7a7ba31 100644
--- a/src/image.h
+++ b/src/image.h
@@ -5,17 +5,15 @@
 #include <memory>
 #include <string>
 
-template <typename T>
 struct Pixel
 {
-	T r, g, b, a;
+	uint8_t r, g, b, a;
 };
 
-
 class Image
 {
 protected:
-	std::unique_ptr<uint8_t[]> imageData;
+	std::unique_ptr<Pixel[]> pixels;
 	// uint8_t* imageData;
 	uint8_t colorValues;
 	uint8_t bpp;
@@ -28,8 +26,7 @@ public:
 	virtual int readFromFile(std::string filename) = 0;
 	virtual int writeToFile(std::string filename) = 0;
 	
-	template <typename T = uint8_t>
-	Pixel<T> getPixel(unsigned int x, unsigned int y);
+	Pixel& operator[](int x, int y);
 
 	uint32_t width = 0;
 	uint32_t height = 0;
@@ -39,38 +36,3 @@ public:
 	uint8_t filterMethod;
 	uint8_t interlaceMethod;
 };
-
-
-template <typename T>
-Pixel<T> Image::getPixel(unsigned int x, unsigned int y)
-{
-	Pixel<T> pixel;
-
-	if(sizeof(T)*8 == bitDepth)
-	{
-		unsigned long rIndex = y * width * colorValues + x * colorValues;
-		pixel.r = ((T*)imageData.get())[rIndex];
-		pixel.g = ((T*)imageData.get())[rIndex + 1];
-		pixel.b = ((T*)imageData.get())[rIndex + 2];
-
-		if(colorValues == 4)
-			pixel.a = ((T*)imageData.get())[rIndex + 3];
-		else
-			pixel.a = 0;
-	}
-	else
-	{
-		unsigned long startIndex = y * width * colorValues * bitDepth/8 + x * colorValues * bitDepth/8;
-		
-		uint32_t pixelData[4];
-		int tsize = sizeof(T);
-		int bytesToTake = std::min(tsize, bitDepth/8);
-		for(int i = 0; i < colorValues; i++)
-		{
-			for(int j = 0; j < bytesToTake; j++)
-				pixelData[i] += imageData[startIndex++] << (bitDepth - j*8 - 8);
-			startIndex += bitDepth/8 - bytesToTake;
-		}
-	}
-	return pixel;
-}