GifFactory

#include "GifFactory.h"
#include <stdlib.h>
#define STB_IMAGE_IMPLEMENTATION
#include "stb_image.h"

UGifFactory::UGifFactory()
{
	bEditorImport = true;
	SupportedClass = UTexture2D::StaticClass();
	Formats.Add(FString("gif;Graphics Interchange Format"));
}

UObject *UGifFactory::FactoryCreateFile
(
	UClass *InClass,
	UObject *InParent,
	FName InName,
	EObjectFlags Flags,
	const FString &Filename,
	const TCHAR *Parms,
	FFeedbackContext *Warn,
	bool &bOutOperationCanceled
)

{
	int32 Width, Height, Comp;
	unsigned char *file = stbi_load(TCHAR_TO_ANSI(*Filename), &Width, &Height, &Comp, 3);

	int32 ColorsLength = Height * Width * 3;

	TArray<FColor> Colors;
	Colors.Reserve(Height * Width);

	for (int i = 0; i < ColorsLength; i++)
	{
		uint8 R = (uint8)file[i];
		uint8 G = (uint8)file[i + 1];
		uint8 B = (uint8)file[i + 2];
		FColor PixelColor(R, G, B);
		Colors.Add(PixelColor);
	}

	FCreateTexture2DParameters Params;
	UTexture2D *NewTexture = FImageUtils::CreateTexture2D(Width, Height, Colors, InParent, InName.ToString(), Flags | RF_Transactional, Params);

	return NewTexture;
}

FText UGifFactory::GetDisplayName() const
{
	return FText::FromString(TEXT("Gif Image"));
}