Magic_Game/src/kiwano/renderer/Texture.h

// Copyright (c) 2016-2018 Kiwano - Nomango
// 
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
// 
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.

#pragma once
#include <kiwano/renderer/win32/D2DDeviceResources.h>
#include <kiwano/core/ObjectBase.h>

namespace kiwano
{
	// <20><>ֵģʽ
	// <20><>ֵģʽָ<CABD><D6B8><EFBFBD><EFBFBD>λͼ<CEBB><CDBC><EFBFBD><EFBFBD><EFBFBD>ź<EFBFBD><C5BA><EFBFBD>תʱ<D7AA><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɫ<EFBFBD>ļ<EFBFBD><C4BC>㷽ʽ
	// Linear (˫<><CBAB><EFBFBD>Բ<EFBFBD>ֵ): <20><><EFBFBD><EFBFBD>Χ<EFBFBD>ĸ<EFBFBD><C4B8><EFBFBD><EFBFBD>ؽ<EFBFBD><D8BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Բ<EFBFBD>ֵ<EFBFBD><D6B5><EFBFBD><EFBFBD>, <20><>ͼ<EFBFBD><CDBC><EFBFBD>Ŵ<EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD>ܻ<EFBFBD>ģ<EFBFBD><C4A3><EFBFBD><EFBFBD>Ĭ<EFBFBD>ϣ<EFBFBD>
	// Nearest (<28><><EFBFBD>ڽ<EFBFBD><DABD><EFBFBD>ֵ): ȡ<><C8A1><EFBFBD>ڽ<EFBFBD><DABD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ص<EFBFBD><D8B5><EFBFBD><EFBFBD><EFBFBD>ɫֵ
	enum class InterpolationMode
	{
		Linear,		// ˫<><CBAB><EFBFBD>Բ<EFBFBD>ֵ
		Nearest,	// <20><><EFBFBD>ڽ<EFBFBD><DABD><EFBFBD>ֵ
	};

	KGE_DECLARE_SMART_PTR(Texture);

	// <20><><EFBFBD><EFBFBD>
	class KGE_API Texture
		: public ObjectBase
	{
	public:
		Texture();

		explicit Texture(
			String const& file_path
		);

		explicit Texture(
			Resource const& res
		);

		explicit Texture(
			ComPtr<ID2D1Bitmap> const& bitmap
		);

		virtual ~Texture();

		// <20><><EFBFBD>ر<EFBFBD><D8B1><EFBFBD><EFBFBD>ļ<EFBFBD>
		bool Load(
			String const& file_path
		);

		// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Դ
		bool Load(
			Resource const& res
		);

		// <20><>Դ<EFBFBD>Ƿ<EFBFBD><C7B7><EFBFBD>Ч
		bool IsValid() const;

		// <20><>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD>
		float GetWidth() const;

		// <20><>ȡ<EFBFBD>߶<EFBFBD>
		float GetHeight() const;

		// <20><>ȡ<EFBFBD><C8A1>С
		Size GetSize() const;

		// <20><>ȡ<EFBFBD><C8A1><EFBFBD>ؿ<EFBFBD><D8BF><EFBFBD>
		uint32_t GetWidthInPixels() const;

		// <20><>ȡ<EFBFBD><C8A1><EFBFBD>ظ߶<D8B8>
		uint32_t GetHeightInPixels() const;

		// <20><>ȡ<EFBFBD><C8A1><EFBFBD>ش<EFBFBD>С
		math::Vec2T<uint32_t> GetSizeInPixels() const;

		// <20><>ȡ<EFBFBD><C8A1><EFBFBD>ز<EFBFBD>ֵ<EFBFBD><D6B5>ʽ
		InterpolationMode GetBitmapInterpolationMode() const;

		// <20><><EFBFBD><EFBFBD>λͼ<CEBB>ڴ<EFBFBD>
		void CopyFrom(TexturePtr copy_from);

		// <20><><EFBFBD><EFBFBD>λͼ<CEBB>ڴ<EFBFBD>
		void CopyFrom(TexturePtr copy_from, Rect const& src_rect, Point const& dest_point);

		// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ز<EFBFBD>ֵ<EFBFBD><D6B5>ʽ
		void SetInterpolationMode(InterpolationMode mode);

		// <20><><EFBFBD><EFBFBD>Ĭ<EFBFBD>ϵ<EFBFBD><CFB5><EFBFBD><EFBFBD>ز<EFBFBD>ֵ<EFBFBD><D6B5>ʽ
		static void SetDefaultInterpolationMode(InterpolationMode mode);

	public:
		// <20><>ȡԴλͼ
		ComPtr<ID2D1Bitmap> GetBitmap() const;

		// <20><><EFBFBD><EFBFBD>Դλͼ
		void SetBitmap(ComPtr<ID2D1Bitmap> bitmap);

		// <20><>ȡ<EFBFBD><C8A1><EFBFBD>ظ<EFBFBD>ʽ
		D2D1_PIXEL_FORMAT GetPixelFormat() const;

	private:
		ComPtr<ID2D1Bitmap>	bitmap_;
		InterpolationMode	interpolation_mode_;

		static InterpolationMode default_interpolation_mode_;
	};
}