Move WGL header from include to src

include/utils/SkWGL.h

Index: include/utils/SkWGL.h
diff --git a/include/utils/SkWGL.h b/include/utils/SkWGL.h
deleted file mode 100644
index d502eb0aa70259082c124177f8760a057f13182b..0000000000000000000000000000000000000000
--- a/include/utils/SkWGL.h
+++ /dev/null
@@ -1,168 +0,0 @@
-
-/*
- * 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"
-
-#ifndef SkWGL_DEFINED
-#define SkWGL_DEFINED
-
-/**
- * Working with WGL extensions can be a pain. Among the reasons is that You must
- * have a GL context to get the proc addresses, but you want to use the procs to
- * create a context in the first place. So you have to create a dummy GL ctx to
- * get the proc addresses.
- *
- * This file helps by providing SkCreateWGLInterface(). It returns a struct of
- * function pointers that it initializes. It also has a helper function to query
- * for WGL extensions. It handles the fact that wglGetExtensionsString is itself
- * an extension.
- */
-
-#if !defined(WIN32_LEAN_AND_MEAN)
-    #define WIN32_LEAN_AND_MEAN
-    #define SK_LOCAL_LEAN_AND_MEAN
-#endif
-#include <windows.h>
-#if defined(SK_LOCAL_LEAN_AND_MEAN)
-    #undef WIN32_LEAN_AND_MEAN
-    #undef SK_LOCAL_LEAN_AND_MEAN
-#endif
-
-#define SK_WGL_DRAW_TO_WINDOW                       0x2001
-#define SK_WGL_ACCELERATION                         0x2003
-#define SK_WGL_SUPPORT_OPENGL                       0x2010
-#define SK_WGL_DOUBLE_BUFFER                        0x2011
-#define SK_WGL_COLOR_BITS                           0x2014
-#define SK_WGL_ALPHA_BITS                           0x201B
-#define SK_WGL_STENCIL_BITS                         0x2023
-#define SK_WGL_FULL_ACCELERATION                    0x2027
-#define SK_WGL_SAMPLE_BUFFERS                       0x2041
-#define SK_WGL_SAMPLES                              0x2042
-#define SK_WGL_CONTEXT_MAJOR_VERSION                0x2091
-#define SK_WGL_CONTEXT_MINOR_VERSION                0x2092
-#define SK_WGL_CONTEXT_LAYER_PLANE                  0x2093
-#define SK_WGL_CONTEXT_FLAGS                        0x2094
-#define SK_WGL_CONTEXT_PROFILE_MASK                 0x9126
-#define SK_WGL_CONTEXT_DEBUG_BIT                    0x0001
-#define SK_WGL_CONTEXT_FORWARD_COMPATIBLE_BIT       0x0002
-#define SK_WGL_CONTEXT_CORE_PROFILE_BIT             0x00000001
-#define SK_WGL_CONTEXT_COMPATIBILITY_PROFILE_BIT    0x00000002
-#define SK_WGL_CONTEXT_ES2_PROFILE_BIT              0x00000004
-#define SK_ERROR_INVALID_VERSION                    0x2095
-#define SK_ERROR_INVALID_PROFILE                    0x2096
-
-DECLARE_HANDLE(HPBUFFER);
-
-class SkWGLExtensions {
-public:
-    SkWGLExtensions();
-    /**
-     * Determines if an extensions is available for a given DC.
-     * WGL_extensions_string is considered a prerequisite for all other
-     * extensions. It is necessary to check this before calling other class
-     * functions.
-     */
-    bool hasExtension(HDC dc, const char* ext) const;
-
-    const char* getExtensionsString(HDC hdc) const;
-    BOOL choosePixelFormat(HDC hdc, const int*, const FLOAT*, UINT, int*, UINT*) const;
-    BOOL getPixelFormatAttribiv(HDC, int, int, UINT, const int*, int*) const;
-    BOOL getPixelFormatAttribfv(HDC hdc, int, int, UINT, const int*, FLOAT*) const;
-    HGLRC createContextAttribs(HDC, HGLRC, const int *) const;
-
-    BOOL swapInterval(int interval) const;
-
-    HPBUFFER createPbuffer(HDC, int , int, int, const int*) const;
-    HDC getPbufferDC(HPBUFFER) const;
-    int releasePbufferDC(HPBUFFER, HDC) const;
-    BOOL destroyPbuffer(HPBUFFER) const;
-
-    /**
-     * WGL doesn't have precise rules for the ordering of formats returned
-     * by wglChoosePixelFormat. This function helps choose among the set of
-     * formats returned by wglChoosePixelFormat. The rules in decreasing
-     * priority are:
-     *     * Choose formats with the smallest sample count that is >=
-     *       desiredSampleCount (or the largest sample count if all formats have
-     *       fewer samples than desiredSampleCount.)
-     *     * Choose formats with the fewest color samples when coverage sampling
-     *       is available.
-     *     * If the above rules leave multiple formats, choose the one that
-     *       appears first in the formats array parameter.
-     */
-    int selectFormat(const int formats[],
-                     int formatCount,
-                     HDC dc,
-                     int desiredSampleCount) const;
-private:
-    typedef const char* (WINAPI *GetExtensionsStringProc)(HDC);
-    typedef BOOL (WINAPI *ChoosePixelFormatProc)(HDC, const int *, const FLOAT *, UINT, int *, UINT *);
-    typedef BOOL (WINAPI *GetPixelFormatAttribivProc)(HDC, int, int, UINT, const int*, int*);
-    typedef BOOL (WINAPI *GetPixelFormatAttribfvProc)(HDC, int, int, UINT, const int*, FLOAT*);
-    typedef HGLRC (WINAPI *CreateContextAttribsProc)(HDC, HGLRC, const int *);
-    typedef BOOL (WINAPI* SwapIntervalProc)(int);
-    typedef HPBUFFER (WINAPI* CreatePbufferProc)(HDC, int , int, int, const int*);
-    typedef HDC (WINAPI* GetPbufferDCProc)(HPBUFFER);
-    typedef int (WINAPI* ReleasePbufferDCProc)(HPBUFFER, HDC);
-    typedef BOOL (WINAPI* DestroyPbufferProc)(HPBUFFER);
-
-    GetExtensionsStringProc fGetExtensionsString;
-    ChoosePixelFormatProc fChoosePixelFormat;
-    GetPixelFormatAttribfvProc fGetPixelFormatAttribfv;
-    GetPixelFormatAttribivProc fGetPixelFormatAttribiv;
-    CreateContextAttribsProc fCreateContextAttribs;
-    SwapIntervalProc fSwapInterval;
-    CreatePbufferProc fCreatePbuffer;
-    GetPbufferDCProc fGetPbufferDC;
-    ReleasePbufferDCProc fReleasePbufferDC;
-    DestroyPbufferProc fDestroyPbuffer;
-};
-
-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, SkWGLContextRequest context);
-
-/**
- * Helper class for creating a pbuffer context and deleting all the handles when finished. This
- * requires that a device context has been created. However, the pbuffer gets its own device
- * context. The original device context can be released once the pbuffer context is created.
- */
-class SkWGLPbufferContext : public SkRefCnt {
-public:
-    static SkWGLPbufferContext* Create(HDC parentDC, int msaaSampleCount,
-                                       SkWGLContextRequest contextType);
-
-    virtual ~SkWGLPbufferContext();
-
-    HDC getDC() const { return fDC; }
-    HGLRC getGLRC() const { return fGLRC; }
-
-private:
-    SkWGLPbufferContext(HPBUFFER pbuffer, HDC dc, HGLRC glrc);
-
-    HPBUFFER        fPbuffer;
-    HDC             fDC;
-    HGLRC           fGLRC;
-    SkWGLExtensions fExtensions;
-};
-
-#endif