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      1 
      2 /*
      3  * Copyright 2011 Google Inc.
      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 #ifndef SkNativeGLContext_DEFINED
      9 #define SkNativeGLContext_DEFINED
     10 
     11 #include "SkGLContextHelper.h"
     12 
     13 #if defined(SK_BUILD_FOR_MAC)
     14     #include <OpenGL/OpenGL.h>
     15 #elif defined(SK_BUILD_FOR_ANDROID) || defined(SK_BUILD_FOR_NACL)
     16     #include <GLES2/gl2.h>
     17     #include <EGL/egl.h>
     18 #elif defined(SK_BUILD_FOR_UNIX)
     19     #include <X11/Xlib.h>
     20     #include <GL/glx.h>
     21 #elif defined(SK_BUILD_FOR_WIN32)
     22     #include <windows.h>
     23     #include <GL/GL.h>
     24 #endif
     25 
     26 class SkNativeGLContext : public SkGLContextHelper {
     27 public:
     28     SkNativeGLContext();
     29 
     30     virtual ~SkNativeGLContext();
     31 
     32     virtual void makeCurrent() const SK_OVERRIDE;
     33     virtual void swapBuffers() const SK_OVERRIDE;
     34 
     35     class AutoContextRestore {
     36     public:
     37         AutoContextRestore();
     38         ~AutoContextRestore();
     39 
     40     private:
     41     #if defined(SK_BUILD_FOR_MAC)
     42         CGLContextObj fOldCGLContext;
     43     #elif defined(SK_BUILD_FOR_ANDROID) || defined(SK_BUILD_FOR_NACL)
     44         EGLContext fOldEGLContext;
     45         EGLDisplay fOldDisplay;
     46         EGLSurface fOldSurface;
     47     #elif defined(SK_BUILD_FOR_UNIX)
     48         GLXContext fOldGLXContext;
     49         Display* fOldDisplay;
     50         GLXDrawable fOldDrawable;
     51     #elif defined(SK_BUILD_FOR_WIN32)
     52         HDC fOldHDC;
     53         HGLRC fOldHGLRC;
     54 
     55     #elif defined(SK_BUILD_FOR_IOS)
     56         void* fEAGLContext;
     57     #endif
     58     };
     59 
     60 protected:
     61     virtual const GrGLInterface* createGLContext() SK_OVERRIDE;
     62     virtual void destroyGLContext() SK_OVERRIDE;
     63 
     64 private:
     65 #if defined(SK_BUILD_FOR_MAC)
     66     CGLContextObj fContext;
     67 #elif defined(SK_BUILD_FOR_ANDROID) || defined(SK_BUILD_FOR_NACL)
     68     EGLContext fContext;
     69     EGLDisplay fDisplay;
     70     EGLSurface fSurface;
     71 #elif defined(SK_BUILD_FOR_UNIX)
     72     GLXContext fContext;
     73     Display* fDisplay;
     74     Pixmap fPixmap;
     75     GLXPixmap fGlxPixmap;
     76 #elif defined(SK_BUILD_FOR_WIN32)
     77     HWND fWindow;
     78     HDC fDeviceContext;
     79     HGLRC fGlRenderContext;
     80     static ATOM gWC;
     81 #elif defined(SK_BUILD_FOR_IOS)
     82     void* fEAGLContext;
     83 #endif
     84 };
     85 
     86 #endif
     87