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2f680de24a
In particular, don't fallback to loading symbols from any loaded library. Differential Revision: https://phabricator.services.mozilla.com/D20455 --HG-- extra : moz-landing-system : lando
115 lines
3.7 KiB
C++
115 lines
3.7 KiB
C++
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "GLContextTypes.h"
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#include "GLLibraryLoader.h"
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#include "mozilla/UniquePtr.h"
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#include <windows.h>
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struct PRLibrary;
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namespace mozilla {
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namespace gl {
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/*
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struct ScopedDC
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{
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const HDC mDC;
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ScopedDC() = delete;
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virtual ~ScopedDC() = 0;
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};
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struct WindowDC final : public ScopedDC
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{
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const HWND mWindow;
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WindowDC() = delete;
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~WindowDC();
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};
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struct PBufferDC final : public ScopedDC
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{
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const HWND mWindow;
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PBufferDC() = delete;
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~PBufferDC();
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};
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*/
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class WGLLibrary {
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public:
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~WGLLibrary() { Reset(); }
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private:
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void Reset();
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public:
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struct {
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HGLRC(GLAPIENTRY* fCreateContext)(HDC);
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BOOL(GLAPIENTRY* fDeleteContext)(HGLRC);
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BOOL(GLAPIENTRY* fMakeCurrent)(HDC, HGLRC);
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PROC(GLAPIENTRY* fGetProcAddress)(LPCSTR);
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HGLRC(GLAPIENTRY* fGetCurrentContext)(void);
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HDC(GLAPIENTRY* fGetCurrentDC)(void);
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// BOOL (GLAPIENTRY * fShareLists) (HGLRC oldContext, HGLRC newContext);
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HANDLE(GLAPIENTRY* fCreatePbuffer)
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(HDC hDC, int iPixelFormat, int iWidth, int iHeight,
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const int* piAttribList);
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BOOL(GLAPIENTRY* fDestroyPbuffer)(HANDLE hPbuffer);
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HDC(GLAPIENTRY* fGetPbufferDC)(HANDLE hPbuffer);
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int(GLAPIENTRY* fReleasePbufferDC)(HANDLE hPbuffer, HDC dc);
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// BOOL (GLAPIENTRY * fBindTexImage) (HANDLE hPbuffer, int iBuffer);
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// BOOL (GLAPIENTRY * fReleaseTexImage) (HANDLE hPbuffer, int iBuffer);
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BOOL(GLAPIENTRY* fChoosePixelFormat)
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(HDC hdc, const int* piAttribIList, const FLOAT* pfAttribFList,
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UINT nMaxFormats, int* piFormats, UINT* nNumFormats);
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// BOOL (GLAPIENTRY * fGetPixelFormatAttribiv) (HDC hdc,
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// int iPixelFormat,
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// int iLayerPlane,
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// UINT nAttributes,
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// int* piAttributes,
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// int* piValues);
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const char*(GLAPIENTRY* fGetExtensionsStringARB)(HDC hdc);
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HGLRC(GLAPIENTRY* fCreateContextAttribsARB)
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(HDC hdc, HGLRC hShareContext, const int* attribList);
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// WGL_NV_DX_interop:
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BOOL(GLAPIENTRY* fDXSetResourceShareHandleNV)
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(void* dxObject, HANDLE shareHandle);
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HANDLE(GLAPIENTRY* fDXOpenDeviceNV)(void* dxDevice);
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BOOL(GLAPIENTRY* fDXCloseDeviceNV)(HANDLE hDevice);
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HANDLE(GLAPIENTRY* fDXRegisterObjectNV)
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(HANDLE hDevice, void* dxObject, GLuint name, GLenum type, GLenum access);
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BOOL(GLAPIENTRY* fDXUnregisterObjectNV)(HANDLE hDevice, HANDLE hObject);
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BOOL(GLAPIENTRY* fDXObjectAccessNV)(HANDLE hObject, GLenum access);
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BOOL(GLAPIENTRY* fDXLockObjectsNV)
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(HANDLE hDevice, GLint count, HANDLE* hObjects);
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BOOL(GLAPIENTRY* fDXUnlockObjectsNV)
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(HANDLE hDevice, GLint count, HANDLE* hObjects);
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} mSymbols = {};
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bool EnsureInitialized();
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// UniquePtr<WindowDC> CreateDummyWindow();
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HGLRC CreateContextWithFallback(HDC dc, bool tryRobustBuffers) const;
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bool HasDXInterop2() const { return bool(mSymbols.fDXOpenDeviceNV); }
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bool IsInitialized() const { return mInitialized; }
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auto GetOGLLibrary() const { return mOGLLibrary; }
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auto RootDc() const { return mRootDc; }
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SymbolLoader GetSymbolLoader() const;
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private:
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bool mInitialized = false;
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PRLibrary* mOGLLibrary;
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bool mHasRobustness;
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HWND mDummyWindow;
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HDC mRootDc;
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HGLRC mDummyGlrc;
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};
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// a global WGLLibrary instance
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extern WGLLibrary sWGLLib;
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} /* namespace gl */
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} /* namespace mozilla */
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