michael@0: /* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
michael@0:  * This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #include "GLContextTypes.h"
michael@0: #include <windows.h>
michael@0: 
michael@0: struct PRLibrary;
michael@0: 
michael@0: namespace mozilla {
michael@0: namespace gl {
michael@0: 
michael@0: class WGLLibrary
michael@0: {
michael@0: public:
michael@0:     WGLLibrary() 
michael@0:       : mInitialized(false), 
michael@0:         mOGLLibrary(nullptr),
michael@0:         mHasRobustness(false), 
michael@0:         mWindow (0),
michael@0:         mWindowDC(0),
michael@0:         mWindowGLContext(0),
michael@0:         mWindowPixelFormat (0)
michael@0:     {}
michael@0: 
michael@0:     typedef HGLRC (GLAPIENTRY * PFNWGLCREATECONTEXTPROC) (HDC);
michael@0:     PFNWGLCREATECONTEXTPROC fCreateContext;
michael@0:     typedef BOOL (GLAPIENTRY * PFNWGLDELETECONTEXTPROC) (HGLRC);
michael@0:     PFNWGLDELETECONTEXTPROC fDeleteContext;
michael@0:     typedef BOOL (GLAPIENTRY * PFNWGLMAKECURRENTPROC) (HDC, HGLRC);
michael@0:     PFNWGLMAKECURRENTPROC fMakeCurrent;
michael@0:     typedef PROC (GLAPIENTRY * PFNWGLGETPROCADDRESSPROC) (LPCSTR);
michael@0:     PFNWGLGETPROCADDRESSPROC fGetProcAddress;
michael@0:     typedef HGLRC (GLAPIENTRY * PFNWGLGETCURRENTCONTEXT) (void);
michael@0:     PFNWGLGETCURRENTCONTEXT fGetCurrentContext;
michael@0:     typedef HDC (GLAPIENTRY * PFNWGLGETCURRENTDC) (void);
michael@0:     PFNWGLGETCURRENTDC fGetCurrentDC;
michael@0:     typedef BOOL (GLAPIENTRY * PFNWGLSHARELISTS) (HGLRC oldContext, HGLRC newContext);
michael@0:     PFNWGLSHARELISTS fShareLists;
michael@0: 
michael@0:     typedef HANDLE (WINAPI * PFNWGLCREATEPBUFFERPROC) (HDC hDC, int iPixelFormat, int iWidth, int iHeight, const int* piAttribList);
michael@0:     PFNWGLCREATEPBUFFERPROC fCreatePbuffer;
michael@0:     typedef BOOL (WINAPI * PFNWGLDESTROYPBUFFERPROC) (HANDLE hPbuffer);
michael@0:     PFNWGLDESTROYPBUFFERPROC fDestroyPbuffer;
michael@0:     typedef HDC (WINAPI * PFNWGLGETPBUFFERDCPROC) (HANDLE hPbuffer);
michael@0:     PFNWGLGETPBUFFERDCPROC fGetPbufferDC;
michael@0: 
michael@0:     typedef BOOL (WINAPI * PFNWGLBINDTEXIMAGEPROC) (HANDLE hPbuffer, int iBuffer);
michael@0:     PFNWGLBINDTEXIMAGEPROC fBindTexImage;
michael@0:     typedef BOOL (WINAPI * PFNWGLRELEASETEXIMAGEPROC) (HANDLE hPbuffer, int iBuffer);
michael@0:     PFNWGLRELEASETEXIMAGEPROC fReleaseTexImage;
michael@0: 
michael@0:     typedef BOOL (WINAPI * PFNWGLCHOOSEPIXELFORMATPROC) (HDC hdc, const int* piAttribIList, const FLOAT *pfAttribFList, UINT nMaxFormats, int *piFormats, UINT *nNumFormats);
michael@0:     PFNWGLCHOOSEPIXELFORMATPROC fChoosePixelFormat;
michael@0:     typedef BOOL (WINAPI * PFNWGLGETPIXELFORMATATTRIBIVPROC) (HDC hdc, int iPixelFormat, int iLayerPlane, UINT nAttributes, int* piAttributes, int *piValues);
michael@0:     PFNWGLGETPIXELFORMATATTRIBIVPROC fGetPixelFormatAttribiv;
michael@0: 
michael@0:     typedef const char * (WINAPI * PFNWGLGETEXTENSIONSSTRINGPROC) (HDC hdc);
michael@0:     PFNWGLGETEXTENSIONSSTRINGPROC fGetExtensionsString;
michael@0: 
michael@0:     typedef HGLRC (WINAPI * PFNWGLCREATECONTEXTATTRIBSPROC) (HDC hdc, HGLRC hShareContext, const int *attribList);
michael@0:     PFNWGLCREATECONTEXTATTRIBSPROC fCreateContextAttribs;
michael@0: 
michael@0:     bool EnsureInitialized();
michael@0:     HWND CreateDummyWindow(HDC *aWindowDC = nullptr);
michael@0: 
michael@0:     bool HasRobustness() const { return mHasRobustness; }
michael@0:     bool IsInitialized() const { return mInitialized; }
michael@0:     HWND GetWindow() const { return mWindow; }
michael@0:     HDC GetWindowDC() const {return mWindowDC; }
michael@0:     HGLRC GetWindowGLContext() const {return mWindowGLContext; }
michael@0:     int GetWindowPixelFormat() const { return mWindowPixelFormat; }
michael@0:     PRLibrary *GetOGLLibrary() { return mOGLLibrary; }
michael@0: 
michael@0: private:
michael@0:     bool mInitialized;
michael@0:     PRLibrary *mOGLLibrary;
michael@0:     bool mHasRobustness;
michael@0: 
michael@0:     HWND mWindow;
michael@0:     HDC mWindowDC;
michael@0:     HGLRC mWindowGLContext;
michael@0:     int mWindowPixelFormat;
michael@0: 
michael@0: };
michael@0: 
michael@0: // a global WGLLibrary instance
michael@0: extern WGLLibrary sWGLLibrary;
michael@0: 
michael@0: } /* namespace gl */
michael@0: } /* namespace mozilla */
michael@0: