init - 初始化项目

samples/wp8/OcvImageManipulation/PhoneXamlDirect3DApp1/PhoneXamlDirect3DApp1Comp/Direct3DInterop.h

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+#pragma once
+
+#include "pch.h"
+#include "BasicTimer.h"
+#include "QuadRenderer.h"
+#include <DrawingSurfaceNative.h>
+#include <ppltasks.h>
+#include <windows.storage.streams.h>
+#include <memory>
+#include <mutex>
+
+
+#include <opencv2\imgproc\types_c.h>
+
+
+namespace PhoneXamlDirect3DApp1Comp
+{
+
+public enum class OCVFilterType
+{
+    ePreview,
+    eGray,
+    eCanny,
+    eBlur,
+    eFindFeatures,
+    eSepia,
+    eNumOCVFilterTypes
+};
+
+class CameraCapturePreviewSink;
+class CameraCaptureSampleSink;
+
+public delegate void RequestAdditionalFrameHandler();
+public delegate void RecreateSynchronizedTextureHandler();
+
+[Windows::Foundation::Metadata::WebHostHidden]
+public ref class Direct3DInterop sealed : public Windows::Phone::Input::Interop::IDrawingSurfaceManipulationHandler
+{
+public:
+    Direct3DInterop();
+
+    Windows::Phone::Graphics::Interop::IDrawingSurfaceContentProvider^ CreateContentProvider();
+
+    // IDrawingSurfaceManipulationHandler
+    virtual void SetManipulationHost(Windows::Phone::Input::Interop::DrawingSurfaceManipulationHost^ manipulationHost);
+
+    event RequestAdditionalFrameHandler^ RequestAdditionalFrame;
+    event RecreateSynchronizedTextureHandler^ RecreateSynchronizedTexture;
+
+    property Windows::Foundation::Size WindowBounds;
+    property Windows::Foundation::Size NativeResolution;
+    property Windows::Foundation::Size RenderResolution
+    {
+        Windows::Foundation::Size get(){ return m_renderResolution; }
+        void set(Windows::Foundation::Size renderResolution);
+    }
+    void SetAlgorithm(OCVFilterType type) { m_algorithm = type; };
+    void UpdateFrame(byte* buffer, int width, int height);
+
+
+protected:
+    // Event Handlers
+    void OnPointerPressed(Windows::Phone::Input::Interop::DrawingSurfaceManipulationHost^ sender, Windows::UI::Core::PointerEventArgs^ args);
+    void OnPointerMoved(Windows::Phone::Input::Interop::DrawingSurfaceManipulationHost^ sender, Windows::UI::Core::PointerEventArgs^ args);
+    void OnPointerReleased(Windows::Phone::Input::Interop::DrawingSurfaceManipulationHost^ sender, Windows::UI::Core::PointerEventArgs^ args);
+
+internal:
+    HRESULT STDMETHODCALLTYPE Connect(_In_ IDrawingSurfaceRuntimeHostNative* host);
+    void STDMETHODCALLTYPE Disconnect();
+    HRESULT STDMETHODCALLTYPE PrepareResources(_In_ const LARGE_INTEGER* presentTargetTime, _Out_ BOOL* contentDirty);
+    HRESULT STDMETHODCALLTYPE GetTexture(_In_ const DrawingSurfaceSizeF* size, _Out_ IDrawingSurfaceSynchronizedTextureNative** synchronizedTexture, _Out_ DrawingSurfaceRectF* textureSubRectangle);
+    ID3D11Texture2D* GetTexture();
+
+private:
+    void StartCamera();
+    void ProcessFrame();
+    bool SwapFrames();
+
+    QuadRenderer^ m_renderer;
+    Windows::Foundation::Size m_renderResolution;
+    OCVFilterType m_algorithm;
+    bool m_contentDirty;
+    std::shared_ptr<cv::Mat> m_backFrame;
+    std::shared_ptr<cv::Mat> m_frontFrame;
+    std::mutex m_mutex;
+
+    Windows::Phone::Media::Capture::AudioVideoCaptureDevice ^pAudioVideoCaptureDevice;
+    ICameraCaptureDeviceNative* pCameraCaptureDeviceNative;
+    IAudioVideoCaptureDeviceNative* pAudioVideoCaptureDeviceNative;
+    CameraCapturePreviewSink* pCameraCapturePreviewSink;
+    CameraCaptureSampleSink* pCameraCaptureSampleSink;
+
+    //void ApplyPreviewFilter(const cv::Mat& image);
+    void ApplyGrayFilter(cv::Mat* mat);
+    void ApplyCannyFilter(cv::Mat* mat);
+    void ApplyBlurFilter(cv::Mat* mat);
+    void ApplyFindFeaturesFilter(cv::Mat* mat);
+    void ApplySepiaFilter(cv::Mat* mat);
+};
+
+class CameraCapturePreviewSink :
+    public Microsoft::WRL::RuntimeClass<
+        Microsoft::WRL::RuntimeClassFlags<Microsoft::WRL::RuntimeClassType::ClassicCom>,
+        ICameraCapturePreviewSink>
+{
+public:
+    void SetDelegate(Direct3DInterop^ delegate)
+    {
+        m_Direct3dInterop = delegate;
+    }
+
+    IFACEMETHODIMP_(void) OnFrameAvailable(
+        DXGI_FORMAT format,
+        UINT width,
+        UINT height,
+        BYTE* pixels);
+
+private:
+    Direct3DInterop^ m_Direct3dInterop;
+};
+
+class CameraCaptureSampleSink :
+    public Microsoft::WRL::RuntimeClass<
+        Microsoft::WRL::RuntimeClassFlags<Microsoft::WRL::RuntimeClassType::ClassicCom>,
+        ICameraCaptureSampleSink>
+{
+public:
+    void SetDelegate(Direct3DInterop^ delegate)
+    {
+        m_Direct3dInterop = delegate;
+    }
+
+    IFACEMETHODIMP_(void) OnSampleAvailable(
+            ULONGLONG hnsPresentationTime,
+            ULONGLONG hnsSampleDuration,
+            DWORD cbSample,
+            BYTE* pSample);
+
+private:
+    Direct3DInterop^ m_Direct3dInterop;
+};
+
+}