charcoal/OpenGLEngine/TextureFactory.h

#pragma once

#include <vector>

#include "ImageLoader.h"

#include "Texture.h"
#include "Sampler.h"

namespace charcoal
{
	class TextureFactory
	{
	private:
		TextureFactory() {}
		virtual ~TextureFactory() {}

	public:
		template <typename T>
		static Texture* gen_texture(
			Texture::Format data_format,
			Texture::Type data_type,
			unsigned long width,
			unsigned long height,
			const std::vector<T>& data,
			Texture::InternalFormat internal_format,
			unsigned short mipmap_level = 0,
			Texture::Target texture_target = Texture::Target::TEXTURE_2D
		)
		{
			m_textures.emplace_back(data_format, data_type, width, height, data, internal_format, mipmap_level, texture_target);
			return &m_textures.back();
		}

		static Texture* gen_image_texture(const image_loader::ImageRGBA& image)
		{
			return gen_texture(Texture::Format::RGBA, Texture::Type::UNSIGNED_BYTE, image.width, image.height, image.data, Texture::InternalFormat::RGBA);
		}

		static Sampler* gen_sampler(
			Sampler::Wrap wrap_s,
			Sampler::Wrap wrap_t,
			Sampler::MagFilter magnification_filter,
			Sampler::MinFilter minification_filter
		)
		{
			m_samplers.emplace_back(wrap_s, wrap_t, magnification_filter, minification_filter);
			return &m_samplers.back();
		}
		
	private:
		static std::vector<Texture> m_textures;
		static std::vector<Sampler> m_samplers;
	};
}