/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*- * This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ #include "GLContextTypes.h" #include "GLLibraryLoader.h" #include "mozilla/UniquePtr.h" #include <windows.h> struct PRLibrary; namespace mozilla { namespace gl { /* struct ScopedDC { const HDC mDC; ScopedDC() = delete; virtual ~ScopedDC() = 0; }; struct WindowDC final : public ScopedDC { const HWND mWindow; WindowDC() = delete; ~WindowDC(); }; struct PBufferDC final : public ScopedDC { const HWND mWindow; PBufferDC() = delete; ~PBufferDC(); }; */ class WGLLibrary { public: ~WGLLibrary() { Reset(); } private: void Reset(); public: struct { HGLRC(GLAPIENTRY* fCreateContext)(HDC); BOOL(GLAPIENTRY* fDeleteContext)(HGLRC); BOOL(GLAPIENTRY* fMakeCurrent)(HDC, HGLRC); PROC(GLAPIENTRY* fGetProcAddress)(LPCSTR); HGLRC(GLAPIENTRY* fGetCurrentContext)(void); HDC(GLAPIENTRY* fGetCurrentDC)(void); // BOOL (GLAPIENTRY * fShareLists) (HGLRC oldContext, HGLRC newContext); HANDLE(GLAPIENTRY* fCreatePbuffer) (HDC hDC, int iPixelFormat, int iWidth, int iHeight, const int* piAttribList); BOOL(GLAPIENTRY* fDestroyPbuffer)(HANDLE hPbuffer); HDC(GLAPIENTRY* fGetPbufferDC)(HANDLE hPbuffer); int(GLAPIENTRY* fReleasePbufferDC)(HANDLE hPbuffer, HDC dc); // BOOL (GLAPIENTRY * fBindTexImage) (HANDLE hPbuffer, int iBuffer); // BOOL (GLAPIENTRY * fReleaseTexImage) (HANDLE hPbuffer, int iBuffer); BOOL(GLAPIENTRY* fChoosePixelFormat) (HDC hdc, const int* piAttribIList, const FLOAT* pfAttribFList, UINT nMaxFormats, int* piFormats, UINT* nNumFormats); // BOOL (GLAPIENTRY * fGetPixelFormatAttribiv) (HDC hdc, // int iPixelFormat, // int iLayerPlane, // UINT nAttributes, // int* piAttributes, // int* piValues); const char*(GLAPIENTRY* fGetExtensionsStringARB)(HDC hdc); HGLRC(GLAPIENTRY* fCreateContextAttribsARB) (HDC hdc, HGLRC hShareContext, const int* attribList); // WGL_NV_DX_interop: BOOL(GLAPIENTRY* fDXSetResourceShareHandleNV) (void* dxObject, HANDLE shareHandle); HANDLE(GLAPIENTRY* fDXOpenDeviceNV)(void* dxDevice); BOOL(GLAPIENTRY* fDXCloseDeviceNV)(HANDLE hDevice); HANDLE(GLAPIENTRY* fDXRegisterObjectNV) (HANDLE hDevice, void* dxObject, GLuint name, GLenum type, GLenum access); BOOL(GLAPIENTRY* fDXUnregisterObjectNV)(HANDLE hDevice, HANDLE hObject); BOOL(GLAPIENTRY* fDXObjectAccessNV)(HANDLE hObject, GLenum access); BOOL(GLAPIENTRY* fDXLockObjectsNV) (HANDLE hDevice, GLint count, HANDLE* hObjects); BOOL(GLAPIENTRY* fDXUnlockObjectsNV) (HANDLE hDevice, GLint count, HANDLE* hObjects); } mSymbols = {}; bool EnsureInitialized(); // UniquePtr<WindowDC> CreateDummyWindow(); HGLRC CreateContextWithFallback(HDC dc, bool tryRobustBuffers) const; bool HasDXInterop2() const { return bool(mSymbols.fDXOpenDeviceNV); } bool IsInitialized() const { return mInitialized; } auto GetOGLLibrary() const { return mOGLLibrary; } auto RootDc() const { return mRootDc; } SymbolLoader GetSymbolLoader() const; private: bool mInitialized = false; PRLibrary* mOGLLibrary; bool mHasRobustness; HWND mDummyWindow; HDC mRootDc; HGLRC mDummyGlrc; }; // a global WGLLibrary instance extern WGLLibrary sWGLLib; } /* namespace gl */ } /* namespace mozilla */