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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 #if SK_COMMAND_BUFFER
     22 class SkCommandBufferGLContext;
     23 #endif
     24 
     25 class SkOSWindow : public SkWindow {
     26 public:
     27     struct WindowInit {
     28         const TCHAR*    fClass;
     29         HINSTANCE       fInstance;
     30     };
     31 
     32     SkOSWindow(const void* winInit);
     33     virtual ~SkOSWindow();
     34 
     35     static bool PostEvent(SkEvent* evt, SkEventSinkID, SkMSec delay);
     36 
     37     enum SkBackEndTypes {
     38         kNone_BackEndType,
     39 #if SK_SUPPORT_GPU
     40         kNativeGL_BackEndType,
     41 #if SK_ANGLE
     42         kANGLE_BackEndType,
     43 #endif // SK_ANGLE
     44 #if SK_COMMAND_BUFFER
     45         kCommandBufferES2_BackEndType,
     46 #endif // SK_COMMAND_BUFFER
     47 #endif // SK_SUPPORT_GPU
     48     };
     49 
     50     bool attach(SkBackEndTypes attachType, int msaaSampleCount, AttachmentInfo*);
     51     void detach();
     52     void present();
     53 
     54     bool wndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam);
     55     static bool QuitOnDeactivate(HWND hWnd);
     56 
     57     enum {
     58         SK_WM_SkEvent = WM_APP + 1000,
     59         SK_WM_SkTimerID = 0xFFFF    // just need a non-zero value
     60     };
     61 
     62     bool makeFullscreen();
     63     void setVsync(bool);
     64     void closeWindow();
     65 
     66     static SkOSWindow* GetOSWindowForHWND(void* hwnd) {
     67         SkOSWindow** win = gHwndToOSWindowMap.find(hwnd);
     68         if (!win) {
     69             return NULL;
     70         }
     71         return *win;
     72     }
     73 
     74     // Iterates f over all the SkOSWindows and their corresponding HWNDs.
     75     // The void* argument to f is a HWND.
     76     static void ForAllWindows(const std::function<void(void*, SkOSWindow**)>& f) {
     77         gHwndToOSWindowMap.foreach(f);
     78     }
     79 
     80 protected:
     81     virtual bool quitOnDeactivate() { return true; }
     82 
     83     // overrides from SkWindow
     84     virtual void onHandleInval(const SkIRect&);
     85     // overrides from SkView
     86     virtual void onAddMenu(const SkOSMenu*);
     87 
     88     virtual void onSetTitle(const char title[]);
     89 
     90 private:
     91     static SkTHashMap<void*, SkOSWindow*> gHwndToOSWindowMap;
     92 
     93     WindowInit          fWinInit;
     94     void*               fHWND;
     95 
     96     void                doPaint(void* ctx);
     97 
     98 #if SK_SUPPORT_GPU
     99     void*               fHGLRC;
    100 #if SK_ANGLE
    101     EGLDisplay          fDisplay;
    102     EGLContext          fContext;
    103     EGLSurface          fSurface;
    104     EGLConfig           fConfig;
    105 #endif // SK_ANGLE
    106 #if SK_COMMAND_BUFFER
    107     SkCommandBufferGLContext* fCommandBuffer;
    108 #endif // SK_COMMAND_BUFFER
    109 #endif // SK_SUPPORT_GPU
    110 
    111     bool                fFullscreen;
    112     struct SavedWindowState {
    113         bool fZoomed;
    114         LONG fStyle;
    115         LONG fExStyle;
    116         RECT fRect;
    117         LONG fScreenWidth;
    118         LONG fScreenHeight;
    119         LONG fScreenBits;
    120         void* fHWND;
    121     } fSavedWindowState;
    122 
    123     HMENU               fMBar;
    124 
    125     SkBackEndTypes      fAttached;
    126 
    127     void updateSize();
    128 #if SK_SUPPORT_GPU
    129     bool attachGL(int msaaSampleCount, AttachmentInfo* info);
    130     void detachGL();
    131     void presentGL();
    132 
    133 #if SK_ANGLE
    134     bool attachANGLE(int msaaSampleCount, AttachmentInfo* info);
    135     void detachANGLE();
    136     void presentANGLE();
    137 #endif // SK_ANGLE
    138 
    139 #if SK_COMMAND_BUFFER
    140     bool attachCommandBuffer(int msaaSampleCount, AttachmentInfo* info);
    141     void detachCommandBuffer();
    142     void presentCommandBuffer();
    143 #endif // SK_COMMAND_BUFFER
    144 #endif // SK_SUPPORT_GPU
    145 
    146     typedef SkWindow INHERITED;
    147 };
    148 
    149 #endif
    150