[Windows] Texture から ID3D11Texture2D を取得できるように #1219

Author: Reputeless

Siv3D/include/Siv3D/Texture.hpp

@@ -19,6 +19,12 @@
 # include "PredefinedNamedParameter.hpp"
 # include "PredefinedYesNo.hpp"
 
+# if SIV3D_PLATFORM(WINDOWS)
+
+	struct ID3D11Texture2D;
+
+# endif
+
 namespace s3d
 {
 	struct TextureRegion;
@@ -289,6 +295,13 @@ namespace s3d
 
 		void swap(Texture& other) noexcept;
 
+	# if SIV3D_PLATFORM(WINDOWS)
+
+		[[nodiscard]]
+		ID3D11Texture2D* getD3D11Texture2D();
+
+	# endif
+
 	protected:
 
 		struct Dynamic {};

Siv3D/src/Siv3D-Platform/WindowsDesktop/Siv3D/Texture/D3D11/CTexture_D3D11.cpp

@@ -405,6 +405,11 @@ namespace s3d
 		m_textures[handleID]->resolveMSRT(m_context);
 	}
 
+	ID3D11Texture2D* CTexture_D3D11::getTexture(const Texture::IDType handleID)
+	{
+		return m_textures[handleID]->getTexture();
+	}
+
 	ID3D11ShaderResourceView** CTexture_D3D11::getSRVPtr(const Texture::IDType handleID)
 	{
 		return m_textures[handleID]->getSRVPtr();

Siv3D/src/Siv3D-Platform/WindowsDesktop/Siv3D/Texture/D3D11/CTexture_D3D11.hpp

@@ -104,6 +104,7 @@ namespace s3d
 		//
 		// D3D11
 		//
+		ID3D11Texture2D* getTexture(Texture::IDType handleID);
 
 		ID3D11ShaderResourceView** getSRVPtr(Texture::IDType handleID);
 

Siv3D/src/Siv3D-Platform/WindowsDesktop/Siv3D/Texture/D3D11/D3D11Texture.cpp

@@ -559,6 +559,11 @@ namespace s3d
 		return m_hasDepth;
 	}
 
+	ID3D11Texture2D* D3D11Texture::getTexture()
+	{
+		return m_texture.Get();
+	}
+
 	ID3D11ShaderResourceView** D3D11Texture::getSRVPtr()
 	{
 		return m_shaderResourceView.GetAddressOf();

Siv3D/src/Siv3D-Platform/WindowsDesktop/Siv3D/Texture/D3D11/D3D11Texture.hpp

@@ -63,6 +63,9 @@ namespace s3d
 		[[nodiscard]]
 		bool hasDepth() const noexcept;
 
+		[[nodiscard]]
+		ID3D11Texture2D* getTexture();
+
 		[[nodiscard]]
 		ID3D11ShaderResourceView** getSRVPtr();
 

Siv3D/src/Siv3D/Texture/SivTexture.cpp

@@ -24,6 +24,10 @@
 # include <Siv3D/AssetMonitor/IAssetMonitor.hpp>
 # include <Siv3D/Common/Siv3DEngine.hpp>
 
+# if SIV3D_PLATFORM(WINDOWS)
+#	include <Siv3D/Texture/D3D11/CTexture_D3D11.hpp>
+# endif
+
 namespace s3d
 {
 	namespace detail
@@ -631,6 +635,22 @@ namespace s3d
 		m_handle.swap(other.m_handle);
 	}
 
+# if SIV3D_PLATFORM(WINDOWS)
+
+	ID3D11Texture2D* Texture::getD3D11Texture2D()
+	{
+		if (auto p = dynamic_cast<CTexture_D3D11*>(SIV3D_ENGINE(Texture)))
+		{
+			return p->getTexture(m_handle->id());
+		}
+		else
+		{
+			return nullptr;
+		}
+	}
+
+# endif
+
 	Texture::Texture(Dynamic, const Size& size, const void* pData, const uint32 stride, const TextureFormat& format, const TextureDesc desc)
 		: AssetHandle{ (detail::CheckEngine(U"DynamicTexture"), std::make_shared<AssetIDWrapperType>(SIV3D_ENGINE(Texture)->createDynamic(size, pData, stride, format, desc)))}
 	{