Support using OpenGL ES context on desktop

include/utils/SkWGL.h

 
 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkRefCnt.h"
 
@@ skipping 86 matching lines @@
     typedef BOOL (WINAPI *GetPixelFormatAttribfvProc)(HDC hdc, int, int, UINT, const int*, FLOAT*);
     typedef HGLRC (WINAPI *CreateContextAttribsProc)(HDC hDC, HGLRC, const int *);
 
     GetExtensionsStringProc fGetExtensionsString;
     ChoosePixelFormatProc fChoosePixelFormat;
     GetPixelFormatAttribfvProc fGetPixelFormatAttribfv;
     GetPixelFormatAttribivProc fGetPixelFormatAttribiv;
     CreateContextAttribsProc fCreateContextAttribs;
 };
 
+enum SkWGLContextRequest {
+    /** Requests to create core profile context if possible, otherwise
+        compatibility profile. */
+    kGLPreferCoreProfile_SkWGLContextRequest,
+    /** Requests to create compatibility profile context if possible, otherwise
+        core profile. */
+    kGLPreferCompatibilityProfile_SkWGLContextRequest,
+    /** Requests to create GL ES profile context. */
+    kGLES_SkWGLContextRequest
+};
 /**
  * Helper to create an OpenGL context for a DC using WGL. Configs with a sample count >= to
  * msaaSampleCount are preferred but if none is available then a context with a lower sample count
  * (including non-MSAA) will be created. If preferCoreProfile is true but a core profile cannot be
  * created then a compatible profile context will be created.
  */
-HGLRC SkCreateWGLContext(HDC dc, int msaaSampleCount, bool preferCoreProfile);
+HGLRC SkCreateWGLContext(HDC dc, int msaaSampleCount, SkWGLContextRequest context);
 
 #endif