RenderGraph: Add header

src/anki/gr/RenderGraph.h

@@ -0,0 +1,90 @@
+// Copyright (C) 2009-2017, Panagiotis Christopoulos Charitos and contributors.
+// All rights reserved.
+// Code licensed under the BSD License.
+// http://www.anki3d.org/LICENSE
+
+#pragma once
+
+#include <anki/gr/Common.h>
+#include <anki/gr/Enums.h>
+
+namespace anki
+{
+
+/// @addtogroup gr
+/// @{
+
+/// XXX
+using RenderGraphHandle = U64;
+
+/// XXX
+using RenderGraphWorkCallback = void (*)(
+	void* userData, CommandBufferPtr cmdb, U32 secondLevelCmdbIdx, U32 secondLevelCmdbCount);
+
+/// XXX
+class RenderGraphDependency
+{
+public:
+	RenderGraphHandle m_handle;
+	union
+	{
+		TextureUsageBit m_textureUsage;
+		BufferUsageBit m_bufferUsage;
+	};
+};
+
+/// XXX
+class RenderTargetInfo
+{
+public:
+	RenderGraphHandle m_renderTarget;
+	TextureSurfaceInfo m_surface;
+	AttachmentLoadOperation m_loadOperation = AttachmentLoadOperation::CLEAR;
+	AttachmentStoreOperation m_storeOperation = AttachmentStoreOperation::STORE;
+	ClearValue m_clearValue;
+
+	AttachmentLoadOperation m_stencilLoadOperation = AttachmentLoadOperation::CLEAR;
+	AttachmentStoreOperation m_stencilStoreOperation = AttachmentStoreOperation::STORE;
+
+	DepthStencilAspectBit m_aspect = DepthStencilAspectBit::NONE; ///< Relevant only for depth stencil textures.
+};
+
+/// XXX
+class RenderGraph : public NonCopyable
+{
+public:
+	RenderGraphHandle importRenderTarget(CString name, TexturePtr tex);
+
+	RenderGraphHandle newRenderTarget(CString name, const TextureInitInfo& texInf);
+
+	RenderGraphHandle importBuffer(CString name, BufferPtr buff);
+
+	RenderGraphHandle newBuffer(CString name, PtrSize size, BufferUsageBit usage, BufferMapAccessBit access);
+
+	void registerRenderPass(CString name,
+		WeakArray<RenderTargetInfo> colorAttachments,
+		RenderTargetInfo depthStencilAttachment,
+		WeakArray<RenderGraphDependency> consumers,
+		WeakArray<RenderGraphDependency> producers,
+		void* userData,
+		RenderGraphWorkCallback callback,
+		U32 secondLevelCmdbsCount);
+
+	/// For compute or other work (mipmap gen).
+	void registerNonRenderPass(CString name,
+		WeakArray<RenderGraphDependency> consumers,
+		WeakArray<RenderGraphDependency> producers,
+		void* userData,
+		RenderGraphWorkCallback callback);
+
+	TexturePtr getTexture(RenderGraphHandle handle);
+
+	BufferPtr getBuffer(RenderGraphHandle handle);
+
+	void run();
+
+	void reset();
+};
+/// @}
+
+} // end namespace anki