From 33385ba1bb04682cef372adb0cd9f63b1fe55ca7 Mon Sep 17 00:00:00 2001
From: Sven Gothel <sgothel@jausoft.com>
Date: Thu, 19 Jun 2014 17:08:45 +0200
Subject: Merge OculusSDK 0.3.2 Windows Source Code

---
 .../Src/CAPI/D3D1X/CAPI_D3D9_DistortionRenderer.h  | 139 +++++++++++++++++++++
 1 file changed, 139 insertions(+)
 create mode 100644 LibOVR/Src/CAPI/D3D1X/CAPI_D3D9_DistortionRenderer.h

(limited to 'LibOVR/Src/CAPI/D3D1X/CAPI_D3D9_DistortionRenderer.h')

diff --git a/LibOVR/Src/CAPI/D3D1X/CAPI_D3D9_DistortionRenderer.h b/LibOVR/Src/CAPI/D3D1X/CAPI_D3D9_DistortionRenderer.h
new file mode 100644
index 0000000..0ac7ae9
--- /dev/null
+++ b/LibOVR/Src/CAPI/D3D1X/CAPI_D3D9_DistortionRenderer.h
@@ -0,0 +1,139 @@
+/************************************************************************************
+
+Filename    :   CAPI_D3D1X_DistortionRenderer.h
+Content     :   Experimental distortion renderer
+Created     :   March 7, 2014
+Authors     :   Tom Heath
+
+Copyright   :   Copyright 2014 Oculus VR, Inc. All Rights reserved.
+
+Licensed under the Oculus VR Rift SDK License Version 3.1 (the "License"); 
+you may not use the Oculus VR Rift SDK except in compliance with the License, 
+which is provided at the time of installation or download, or which 
+otherwise accompanies this software in either electronic or hard copy form.
+
+You may obtain a copy of the License at
+
+http://www.oculusvr.com/licenses/LICENSE-3.1 
+
+Unless required by applicable law or agreed to in writing, the Oculus VR SDK 
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+
+************************************************************************************/
+
+#include "../../Kernel/OVR_Types.h"
+
+#undef new
+
+#if defined (OVR_OS_WIN32)
+#if _MSC_VER < 1700
+#include <d3dx9.h>
+#else
+#include <d3d9.h>
+#endif
+#endif
+
+#if defined(OVR_DEFINE_NEW)
+#define new OVR_DEFINE_NEW
+#endif 
+
+#include "../CAPI_DistortionRenderer.h"
+
+
+namespace OVR { namespace CAPI { namespace D3D9 {
+
+
+//Implementation of DistortionRenderer for D3D9.
+/***************************************************/
+class DistortionRenderer : public CAPI::DistortionRenderer
+{
+public:    
+    DistortionRenderer(ovrHmd hmd, FrameTimeManager& timeManager, const HMDRenderState& renderState);
+    ~DistortionRenderer();
+
+    // Creation function for the device.    
+    static CAPI::DistortionRenderer* Create(ovrHmd hmd,
+		                                    FrameTimeManager& timeManager,
+                                            const HMDRenderState& renderState);
+	
+    // ***** Public DistortionRenderer interface
+    virtual bool Initialize(const ovrRenderAPIConfig* apiConfig,
+                            unsigned distortionCaps);
+
+    virtual void SubmitEye(int eyeId, ovrTexture* eyeTexture);
+
+    virtual void EndFrame(bool swapBuffers, unsigned char* latencyTesterDrawColor, unsigned char* latencyTester2DrawColor);
+
+    // TBD: Make public?
+    void         WaitUntilGpuIdle();
+
+	// Similar to ovr_WaitTillTime but it also flushes GPU.
+	// Note, it exits when time expires, even if GPU is not in idle state yet.
+	double       WaitTillTimeAndFlushGpu(double absTime);
+
+protected:
+	
+	class GraphicsState : public CAPI::DistortionRenderer::GraphicsState
+	{
+	public:
+		GraphicsState(IDirect3DDevice9* d);
+		virtual void Save();
+		virtual void Restore();
+
+	protected:
+		void RecordAndSetState(int which, int type, DWORD newValue);
+
+		//Structure to store our state changes
+		static const int MAX_SAVED_STATES=100;
+		struct SavedStateType
+		{
+			int which;  //0 for samplerstate, 1 for renderstate
+			int type;
+			DWORD valueToRevertTo;
+		} savedState[MAX_SAVED_STATES];
+
+		//Keep track of how many we've done, for reverting
+		int numSavedStates;
+		IDirect3DDevice9* device;
+	};
+
+private:
+
+	//Functions
+	void         CreateDistortionShaders(void);
+	void         Create_Distortion_Models(void);
+	void         CreateVertexDeclaration(void);
+	void         RenderBothDistortionMeshes();
+	void         RecordAndSetState(int which, int type, DWORD newValue);
+	void         RevertAllStates(void);
+
+	
+	//Data, structures and pointers
+	IDirect3DDevice9            * device;
+	IDirect3DSwapChain9         * swapChain;
+	IDirect3DVertexDeclaration9 * vertexDecl;
+	IDirect3DPixelShader9       * pixelShader;
+	IDirect3DVertexShader9      * vertexShader;
+	IDirect3DVertexShader9      * vertexShaderTimewarp;
+	ovrSizei                      screenSize; 
+	unsigned                      distortionCaps;
+
+	struct FOR_EACH_EYE
+	{
+        FOR_EACH_EYE() : TextureSize(0), RenderViewport(Sizei(0)) { }
+
+		IDirect3DVertexBuffer9  * dxVerts;
+		IDirect3DIndexBuffer9   * dxIndices;
+		int                       numVerts;
+		int                       numIndices;
+		IDirect3DTexture9       * texture;
+		ovrVector2f			 	  UVScaleOffset[2]; 
+        Sizei                     TextureSize;
+        Recti                     RenderViewport;
+	} eachEye[2];
+};
+
+}}} // OVR::CAPI::D3D9
-- 
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