Bump OculusVR RIFT SDK to 0.5.0.1vanilla_0.5.0.1

1 files changed, 500 insertions, 0 deletions

diff --git a/LibOVR/Src/CAPI/D3D1X/CAPI_D3D11_Util.h b/LibOVR/Src/CAPI/D3D1X/CAPI_D3D11_Util.h
new file mode 100644
index 0000000..b4e5529
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+++ b/LibOVR/Src/CAPI/D3D1X/CAPI_D3D11_Util.h
@@ -0,0 +1,500 @@
+/************************************************************************************
+
+Filename    :   CAPI_D3D11_Util.h
+Content     :   D3D11 utility classes for rendering
+Created     :   September 10, 2012
+Authors     :   Andrew Reisse
+
+Copyright   :   Copyright 2014 Oculus VR, LLC All Rights reserved.
+
+Licensed under the Oculus VR Rift SDK License Version 3.2 (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-3.2 
+
+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.
+
+************************************************************************************/
+
+#ifndef OVR_CAPI_D3D11_Util_h
+#define OVR_CAPI_D3D11_Util_h
+
+#include "Kernel/OVR_String.h"
+#include "Kernel/OVR_Array.h"
+#include "Kernel/OVR_RefCount.h"
+#include "Extras/OVR_Math.h"
+#include "Util/Util_Direct3D.h"
+#include <comdef.h> // for _COM_SMARTPTR_TYPEDEF()
+
+namespace OVR { namespace CAPI { namespace D3D11 {
+
+class Buffer;
+
+// Rendering parameters/pointers describing D3DX rendering setup.
+struct RenderParams
+{
+    ID3D11Device*			    pDevice;
+    ID3D11DeviceContext*        pContext;
+    ID3D11RenderTargetView*     pBackBufferRT;
+    ID3D11UnorderedAccessView*  pBackBufferUAV;
+    IDXGISwapChain*             pSwapChain;
+    Sizei                       BackBufferSize;
+    int                         Multisample;
+    UINT32                      VidPnTargetId; // display miniport target id for tracing
+};
+
+
+// Rendering primitive type used to render Model.
+enum PrimitiveType
+{
+    Prim_Triangles,
+    Prim_Lines,
+    Prim_TriangleStrip,
+    Prim_Unknown,
+    Prim_Count
+};
+
+// Types of shaders that can be stored together in a ShaderSet.
+enum ShaderStage
+{
+    Shader_Vertex   = 0,
+    Shader_Fragment = 2,
+    Shader_Pixel    = 2,
+    Shader_Compute  = 3,        // DX11+ only
+    Shader_Count    = 4,
+};
+
+enum MapFlags
+{
+    Map_Discard        = 1,
+    Map_Read           = 2, // do not use
+    Map_Unsynchronized = 4, // like D3D11_MAP_NO_OVERWRITE
+};
+
+
+// Buffer types used for uploading geometry & constants.
+enum BufferUsage
+{
+    Buffer_Unknown  = 0,
+    Buffer_Vertex   = 1,
+    Buffer_Index    = 2,
+    Buffer_Uniform  = 4,
+    Buffer_Compute  = 8,
+    Buffer_TypeMask = 0xff,
+    Buffer_ReadOnly = 0x100, // Buffer must be created with Data().
+};
+
+enum TextureFormat
+{
+    Texture_RGBA            = 0x0100,
+    Texture_Depth           = 0x8000,
+    Texture_TypeMask        = 0xff00,
+    Texture_SamplesMask     = 0x00ff,
+    Texture_RenderTarget    = 0x10000,
+    Texture_SampleDepth		= 0x20000,
+    Texture_GenMipmaps      = 0x40000,
+};
+
+// Texture sampling modes.
+enum SampleMode
+{
+    Sample_Linear       = 0,
+    Sample_Nearest      = 1,
+    Sample_Anisotropic  = 2,
+    Sample_FilterMask   = 3,
+
+    Sample_Repeat       = 0,
+    Sample_Clamp        = 4,
+    Sample_ClampBorder  = 8, // If unsupported Clamp is used instead.
+    Sample_Mirror       =12,
+    Sample_AddressMask  =12,
+
+    Sample_Count        =16,
+};
+
+// Base class for vertex and pixel shaders. Stored in ShaderSet.
+class Shader : public RefCountBase<Shader>
+{
+    friend class ShaderSet;
+
+protected:
+    ShaderStage Stage;
+
+public:
+    Shader(ShaderStage s) : Stage(s) {}
+    virtual ~Shader() {}
+
+    ShaderStage GetStage() const { return Stage; }
+
+    virtual void Set(PrimitiveType) const { }
+    virtual void SetUniformBuffer(class Buffer* buffers, int i = 0) { OVR_UNUSED2(buffers, i); }
+
+protected:
+    virtual bool SetUniform(const char* name, int n, const float* v) { OVR_UNUSED3(name, n, v); return false; }
+    virtual bool SetUniformBool(const char* name, int n, const bool* v) { OVR_UNUSED3(name, n, v); return false; }
+};
+
+
+
+// A group of shaders, one per stage.
+// A ShaderSet is applied to a RenderDevice for rendering with a given fill.
+class ShaderSet : public RefCountBase<ShaderSet>
+{
+protected:
+    Ptr<Shader> Shaders[Shader_Count];
+
+public:
+    ShaderSet() { }
+    ~ShaderSet() { }
+
+    virtual void SetShader(Shader *s)
+    {
+        Shaders[s->GetStage()] = s;
+    }
+    virtual void UnsetShader(int stage)
+    {
+        Shaders[stage] = NULL;
+    }
+    Shader* GetShader(int stage) { return Shaders[stage]; }
+
+    virtual void Set(PrimitiveType prim) const
+    {
+        for (int i = 0; i < Shader_Count; i++)
+            if (Shaders[i])
+                Shaders[i]->Set(prim);
+    }
+
+    // Set a uniform (other than the standard matrices). It is undefined whether the
+    // uniforms from one shader occupy the same space as those in other shaders
+    // (unless a buffer is used, then each buffer is independent).     
+    virtual bool SetUniform(const char* name, int n, const float* v)
+    {
+        bool result = 0;
+        for (int i = 0; i < Shader_Count; i++)
+            if (Shaders[i])
+                result |= Shaders[i]->SetUniform(name, n, v);
+
+        return result;
+    }
+    bool SetUniform1f(const char* name, float x)
+    {
+        const float v[] = {x};
+        return SetUniform(name, 1, v);
+    }
+    bool SetUniform2f(const char* name, float x, float y)
+    {
+        const float v[] = {x,y};
+        return SetUniform(name, 2, v);
+    }
+    bool SetUniform3f(const char* name, float x, float y, float z)
+    {
+        const float v[] = {x,y,z};
+        return SetUniform(name, 3, v);
+    }
+    bool SetUniform4f(const char* name, float x, float y, float z, float w = 1)
+    {
+        const float v[] = {x,y,z,w};
+        return SetUniform(name, 4, v);
+    }
+
+    bool SetUniformv(const char* name, const Vector3f& v)
+    {
+        const float a[] = {v.x,v.y,v.z,1};
+        return SetUniform(name, 4, a);
+    }
+ 
+    virtual bool SetUniform4x4f(const char* name, const Matrix4f& m)
+    {
+        Matrix4f mt = m.Transposed();
+        return SetUniform(name, 16, &mt.M[0][0]);
+    }
+    virtual bool SetUniform3x3f(const char* name, const Matrix4f& m)
+    {
+        // float3x3 is actually stored the same way as float4x3, with the last items ignored by the code.
+        Matrix4f mt = m.Transposed();
+        return SetUniform(name, 12, &mt.M[0][0]);
+    }
+
+};
+
+
+// Fill combines a ShaderSet (vertex, pixel) with textures, if any.
+// Every model has a fill.
+class ShaderFill : public RefCountBase<ShaderFill>
+{
+    Ptr<ShaderSet>     Shaders;
+    Ptr<class Texture> PsTextures[8];
+    Ptr<class Texture> VsTextures[8];
+    Ptr<class Texture> CsTextures[8];
+    void*              InputLayout; // HACK this should be abstracted
+
+public:
+    ShaderFill(ShaderSet* sh) : Shaders(sh) { InputLayout = NULL; }
+    ShaderFill(ShaderSet& sh) : Shaders(sh) { InputLayout = NULL; }    
+
+    ShaderSet*  GetShaders() const      { return Shaders; }
+    void*       GetInputLayout() const  { return InputLayout; }
+
+    virtual void Set(PrimitiveType prim = Prim_Unknown) const;   
+
+    virtual void SetTexture(int i, class Texture* tex, ShaderStage stage)
+    {
+        if (i < 8)
+        {
+                 if(stage == Shader_Pixel)  PsTextures[i] = tex;
+            else if(stage == Shader_Vertex) VsTextures[i] = tex;
+            else if(stage == Shader_Compute) CsTextures[i] = tex;
+            else OVR_ASSERT(false);
+        }
+    }
+    void SetInputLayout(void* newIL) { InputLayout = (void*)newIL; }
+};
+
+
+class ShaderBase : public Shader
+{
+public:    
+    RenderParams*   pParams;
+    unsigned char*  UniformData;
+    int             UniformsSize;
+
+	enum VarType
+	{
+		VARTYPE_FLOAT,
+		VARTYPE_INT,
+		VARTYPE_BOOL,
+	};
+
+	struct Uniform
+	{
+		const char* Name;
+		VarType     Type;
+        int         Offset;
+        int         Size;
+	};
+    const Uniform*  UniformRefl;
+    size_t          UniformReflSize;
+
+	ShaderBase(RenderParams* rp, ShaderStage stage);
+	~ShaderBase();
+
+    ShaderStage GetStage() const { return Stage; }
+
+    void InitUniforms(const Uniform* refl, size_t reflSize);
+	bool SetUniform(const char* name, int n, const float* v);
+	bool SetUniformBool(const char* name, int n, const bool* v);
+ 
+    void UpdateBuffer(Buffer* b);
+};
+
+
+template<ShaderStage SStage, class D3DShaderType>
+class ShaderImpl : public ShaderBase
+{
+public:
+    D3DShaderType*  D3DShader;
+
+    ShaderImpl(RenderParams* rp, void* s, size_t size, const Uniform* refl, size_t reflSize) : ShaderBase(rp, SStage)
+    {
+        Load(s, size);
+        InitUniforms(refl, reflSize);
+    }
+    ~ShaderImpl()
+    {
+        if (D3DShader)        
+            D3DShader->Release();        
+    }
+
+    // These functions have specializations.
+    bool Load(void* shader, size_t size);
+    void Set(PrimitiveType prim) const;
+    void SetUniformBuffer(Buffer* buffers, int i = 0);
+};
+
+typedef ShaderImpl<Shader_Vertex,  ID3D11VertexShader> VertexShader;
+typedef ShaderImpl<Shader_Fragment, ID3D11PixelShader> PixelShader;
+typedef ShaderImpl<Shader_Compute, ID3D11ComputeShader> ComputeShader;
+
+
+class Buffer : public RefCountBase<Buffer>
+{
+public:
+    RenderParams*                   pParams;
+    Ptr<ID3D11Buffer>               D3DBuffer;
+    Ptr<ID3D11ShaderResourceView>   D3DSrv;
+    Ptr<ID3D11UnorderedAccessView>  D3DUav;
+    size_t            Size;
+    int               Use;
+    bool              Dynamic;
+
+public:
+    Buffer(RenderParams* rp) : pParams(rp), D3DBuffer(), D3DSrv(),
+                               D3DUav(),
+                               Size(0), Use(0), Dynamic(false) {}
+    ~Buffer();
+
+    ID3D11Buffer* GetBuffer() const
+    {
+        return D3DBuffer;
+    }
+
+    ID3D11ShaderResourceView* GetSrv() const
+    {
+        return D3DSrv;
+    }
+
+    ID3D11UnorderedAccessView* GetUav() const
+    {
+        return D3DUav;
+    }
+
+    virtual size_t GetSize()        { return Size; }
+    virtual void*  Map(size_t start, size_t size, int flags = 0);
+    virtual bool   Unmap(void *m);
+    virtual bool   Data(int use, const void* buffer, size_t size, int computeBufferStride = -1);
+};
+
+
+class Texture : public RefCountBase<Texture>
+{
+public:
+    RenderParams*                   pParams;
+    Ptr<ID3D11Texture2D>            Tex;
+    Ptr<ID3D11ShaderResourceView>   TexSv;
+    Ptr<ID3D11RenderTargetView>     TexRtv;
+    Ptr<ID3D11DepthStencilView>     TexDsv;
+    // TODO: add UAV...
+    mutable Ptr<ID3D11SamplerState> Sampler;
+    Sizei                           TextureSize;
+    int                             Samples;
+
+    Texture(RenderParams* rp, int fmt, const Sizei texSize,
+            ID3D11SamplerState* sampler, int samples = 1);
+    Texture(RenderParams* rp, int fmt, const Sizei texSize,
+            ID3D11SamplerState* sampler, const void* data, int mipcount);
+    ~Texture();
+
+    void GenerateSubresourceData(
+        unsigned imageWidth, unsigned imageHeight, int format, unsigned imageDimUpperLimit,
+        const void* rawBytes, D3D11_SUBRESOURCE_DATA* subresData,
+        unsigned& largestMipWidth, unsigned& largestMipHeight, unsigned& byteSize, unsigned& effectiveMipCount);
+    
+    virtual Sizei GetSize() const     { return TextureSize; }    
+    virtual int   GetSamples() const  { return Samples; }
+
+  //  virtual void SetSampleMode(int sm);
+
+    // Updates texture to point to specified resources
+    //  - used for slave rendering.
+    void UpdatePlaceholderTexture(ID3D11Texture2D* texture,
+                                  ID3D11ShaderResourceView* psrv,
+                                  const Sizei& textureSize, const int sampleCount)
+    {
+        Tex     = texture;
+        TexSv   = psrv;
+        TexRtv.Clear();
+        TexDsv.Clear();
+
+        TextureSize = textureSize;
+        Samples = sampleCount;
+
+#ifdef OVR_BUILD_DEBUG
+        D3D11_TEXTURE2D_DESC desc;
+        texture->GetDesc(&desc);
+        OVR_ASSERT(TextureSize == Sizei(desc.Width, desc.Height));
+#endif
+    }
+
+
+    virtual void Set(int slot, ShaderStage stage = Shader_Fragment) const;
+
+    int GetNumMipLevels(int w, int h)
+    {
+        int n = 1;
+        while(w > 1 || h > 1)
+        {
+            w >>= 1;
+            h >>= 1;
+            n++;
+        }
+        return n;
+    }
+
+    void FilterRgba2x2(const uint8_t* src, int w, int h, uint8_t* dest)
+    {
+        for(int j = 0; j < (h & ~1); j += 2)
+        {
+            const uint8_t* psrc = src + (w * j * 4);
+            uint8_t*       pdest = dest + ((w >> 1) * (j >> 1) * 4);
+
+            for(int i = 0; i < w >> 1; i++, psrc += 8, pdest += 4)
+            {
+                pdest[0] = (((int)psrc[0]) + psrc[4] + psrc[w * 4 + 0] + psrc[w * 4 + 4]) >> 2;
+                pdest[1] = (((int)psrc[1]) + psrc[5] + psrc[w * 4 + 1] + psrc[w * 4 + 5]) >> 2;
+                pdest[2] = (((int)psrc[2]) + psrc[6] + psrc[w * 4 + 2] + psrc[w * 4 + 6]) >> 2;
+                pdest[3] = (((int)psrc[3]) + psrc[7] + psrc[w * 4 + 3] + psrc[w * 4 + 7]) >> 2;
+            }
+        }
+    }
+};
+
+
+class GpuTimer : public RefCountBase<GpuTimer>
+{
+public:
+    GpuTimer()
+        : QuerySets(MaxNumQueryFrames)
+        , D3dDevice(NULL)
+        , Context(NULL)
+        , LastQueuedFrame(-1)
+        , LastTimedFrame(-1)
+    { }
+
+    void Init(ID3D11Device* device, ID3D11DeviceContext* content);
+
+    void BeginQuery();
+    void EndQuery();
+
+    // Returns -1 if timing is invalid
+    float GetTiming(bool blockUntilValid);
+
+protected:
+    static const unsigned MaxNumQueryFrames = 10;
+    
+    int GotoNextFrame(int frame)
+    {
+        return (frame + 1) % MaxNumQueryFrames;
+    }
+    
+    _COM_SMARTPTR_TYPEDEF(ID3D11Query, __uuidof(ID3D11Query));
+
+    struct GpuQuerySets
+    {
+        ID3D11QueryPtr DisjointQuery;
+        ID3D11QueryPtr TimeStartQuery;
+        ID3D11QueryPtr TimeEndQuery;
+        bool QueryStarted;
+        bool QueryAwaitingTiming;
+
+        GpuQuerySets() : QueryStarted(false), QueryAwaitingTiming(false) {}
+    };
+    Array<GpuQuerySets> QuerySets;
+    
+    int LastQueuedFrame;
+    int LastTimedFrame;
+
+    Ptr<ID3D11Device> D3dDevice;
+    Ptr<ID3D11DeviceContext> Context;
+};
+
+}}} // OVR::CAPI::D3D11
+
+#endif // OVR_CAPI_D3D11_Util_h