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      1 
      2 /*
      3  * Copyright 2006 The Android Open Source Project
      4  *
      5  * Use of this source code is governed by a BSD-style license that can be
      6  * found in the LICENSE file.
      7  */
      8 
      9 
     10 #ifndef SkOSWindow_Win_DEFINED
     11 #define SkOSWindow_Win_DEFINED
     12 
     13 #include "../private/SkTHash.h"
     14 #include "SkWindow.h"
     15 #include <functional>
     16 
     17 #if SK_ANGLE
     18 #include "EGL/egl.h"
     19 #endif
     20 
     21 class SkOSWindow : public SkWindow {
     22 public:
     23     struct WindowInit {
     24         const TCHAR*    fClass;
     25         HINSTANCE       fInstance;
     26     };
     27 
     28     SkOSWindow(const void* winInit);
     29     virtual ~SkOSWindow();
     30 
     31     static bool PostEvent(SkEvent* evt, SkEventSinkID, SkMSec delay);
     32 
     33     enum SkBackEndTypes {
     34         kNone_BackEndType,
     35 #if SK_SUPPORT_GPU
     36         kNativeGL_BackEndType,
     37 #if SK_ANGLE
     38         kANGLE_BackEndType,
     39 #endif // SK_ANGLE
     40 #endif // SK_SUPPORT_GPU
     41     };
     42 
     43     bool attach(SkBackEndTypes attachType, int msaaSampleCount, bool deepColor, AttachmentInfo*);
     44     void release();
     45     void present();
     46 
     47     bool wndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam);
     48     static bool QuitOnDeactivate(HWND hWnd);
     49 
     50     enum {
     51         SK_WM_SkEvent = WM_APP + 1000,
     52         SK_WM_SkTimerID = 0xFFFF    // just need a non-zero value
     53     };
     54 
     55     bool makeFullscreen();
     56     void setVsync(bool);
     57     void closeWindow();
     58 
     59     static SkOSWindow* GetOSWindowForHWND(void* hwnd) {
     60         SkOSWindow** win = gHwndToOSWindowMap.find(hwnd);
     61         if (!win) {
     62             return NULL;
     63         }
     64         return *win;
     65     }
     66 
     67     // Iterates f over all the SkOSWindows and their corresponding HWNDs.
     68     // The void* argument to f is a HWND.
     69     static void ForAllWindows(const std::function<void(void*, SkOSWindow**)>& f) {
     70         gHwndToOSWindowMap.foreach(f);
     71     }
     72 
     73 protected:
     74     virtual bool quitOnDeactivate() { return true; }
     75 
     76     // overrides from SkWindow
     77     virtual void onHandleInval(const SkIRect&);
     78     // overrides from SkView
     79     virtual void onAddMenu(const SkOSMenu*);
     80 
     81     virtual void onSetTitle(const char title[]);
     82 
     83 private:
     84     static SkTHashMap<void*, SkOSWindow*> gHwndToOSWindowMap;
     85 
     86     WindowInit          fWinInit;
     87     void*               fHWND;
     88 
     89     void                doPaint(void* ctx);
     90 
     91 #if SK_SUPPORT_GPU
     92     void*               fHGLRC;
     93 #if SK_ANGLE
     94     EGLDisplay                 fDisplay;
     95     EGLContext                 fContext;
     96     EGLSurface                 fSurface;
     97     EGLConfig                  fConfig;
     98     sk_sp<const GrGLInterface> fANGLEInterface;
     99 #endif // SK_ANGLE
    100 #endif // SK_SUPPORT_GPU
    101 
    102     bool                fFullscreen;
    103     struct SavedWindowState {
    104         bool fZoomed;
    105         LONG fStyle;
    106         LONG fExStyle;
    107         RECT fRect;
    108         LONG fScreenWidth;
    109         LONG fScreenHeight;
    110         LONG fScreenBits;
    111         void* fHWND;
    112     } fSavedWindowState;
    113 
    114     HMENU               fMBar;
    115 
    116     SkBackEndTypes      fAttached;
    117 
    118     void updateSize();
    119 #if SK_SUPPORT_GPU
    120     bool attachGL(int msaaSampleCount, bool deepColor, AttachmentInfo* info);
    121     void detachGL();
    122     void presentGL();
    123 
    124 #if SK_ANGLE
    125     bool attachANGLE(int msaaSampleCount, AttachmentInfo* info);
    126     void detachANGLE();
    127     void presentANGLE();
    128 #endif // SK_ANGLE
    129 
    130 #endif // SK_SUPPORT_GPU
    131 
    132     typedef SkWindow INHERITED;
    133 };
    134 
    135 #endif
    136