зеркало из https://github.com/mozilla/gecko-dev.git
98 строки
4.1 KiB
C++
98 строки
4.1 KiB
C++
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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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 <windows.h>
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struct PRLibrary;
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namespace mozilla {
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namespace gl {
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class WGLLibrary
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{
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public:
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WGLLibrary()
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: mSymbols{nullptr}
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, mInitialized(false)
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, mOGLLibrary(nullptr)
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, mHasRobustness(false)
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, mWindow (0)
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, mWindowDC(0)
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, mWindowGLContext(0)
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, mWindowPixelFormat(0)
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{ }
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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) (HDC hDC, int iPixelFormat, int iWidth,
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int iHeight, 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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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) (HDC hdc, const int* piAttribIList,
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const FLOAT* pfAttribFList,
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UINT nMaxFormats, int* piFormats,
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UINT* nNumFormats);
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BOOL (GLAPIENTRY * fGetPixelFormatAttribiv) (HDC hdc, int iPixelFormat,
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int iLayerPlane, UINT nAttributes,
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int* piAttributes, int* piValues);
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const char* (GLAPIENTRY * fGetExtensionsStringARB) (HDC hdc);
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HGLRC (GLAPIENTRY * fCreateContextAttribsARB) (HDC hdc, HGLRC hShareContext,
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const int* attribList);
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// WGL_NV_DX_interop:
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BOOL (GLAPIENTRY * fDXSetResourceShareHandleNV) (void* dxObject,
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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) (HANDLE hDevice, void* dxObject,
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GLuint name, GLenum type,
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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) (HANDLE hDevice, GLint count,
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HANDLE* hObjects);
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BOOL (GLAPIENTRY * fDXUnlockObjectsNV) (HANDLE hDevice, GLint count,
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HANDLE* hObjects);
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} mSymbols;
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bool EnsureInitialized();
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HWND CreateDummyWindow(HDC* aWindowDC = nullptr);
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bool HasRobustness() const { return mHasRobustness; }
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bool HasDXInterop2() const { return bool(mSymbols.fDXOpenDeviceNV); }
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bool IsInitialized() const { return mInitialized; }
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HWND GetWindow() const { return mWindow; }
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HDC GetWindowDC() const {return mWindowDC; }
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HGLRC GetWindowGLContext() const {return mWindowGLContext; }
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int GetWindowPixelFormat() const { return mWindowPixelFormat; }
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PRLibrary* GetOGLLibrary() { return mOGLLibrary; }
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private:
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bool mInitialized;
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PRLibrary* mOGLLibrary;
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bool mHasRobustness;
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HWND mWindow;
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HDC mWindowDC;
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HGLRC mWindowGLContext;
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int mWindowPixelFormat;
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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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