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/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
* 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 <windows.h>
struct PRLibrary;
namespace mozilla {
namespace gl {
class WGLLibrary
{
public:
WGLLibrary()
: mInitialized(false)
, mOGLLibrary(nullptr)
, mHasRobustness(false)
, mHasDXInterop(false)
, mHasDXInterop2(false)
, mWindow (0)
, mWindowDC(0)
, mWindowGLContext(0)
, mWindowPixelFormat(0)
{}
typedef HGLRC (GLAPIENTRY * PFNWGLCREATECONTEXTPROC) (HDC);
PFNWGLCREATECONTEXTPROC fCreateContext;
typedef BOOL (GLAPIENTRY * PFNWGLDELETECONTEXTPROC) (HGLRC);
PFNWGLDELETECONTEXTPROC fDeleteContext;
typedef BOOL (GLAPIENTRY * PFNWGLMAKECURRENTPROC) (HDC, HGLRC);
PFNWGLMAKECURRENTPROC fMakeCurrent;
typedef PROC (GLAPIENTRY * PFNWGLGETPROCADDRESSPROC) (LPCSTR);
PFNWGLGETPROCADDRESSPROC fGetProcAddress;
typedef HGLRC (GLAPIENTRY * PFNWGLGETCURRENTCONTEXT) (void);
PFNWGLGETCURRENTCONTEXT fGetCurrentContext;
typedef HDC (GLAPIENTRY * PFNWGLGETCURRENTDC) (void);
PFNWGLGETCURRENTDC fGetCurrentDC;
typedef BOOL (GLAPIENTRY * PFNWGLSHARELISTS) (HGLRC oldContext, HGLRC newContext);
PFNWGLSHARELISTS fShareLists;
typedef HANDLE (WINAPI * PFNWGLCREATEPBUFFERPROC) (HDC hDC, int iPixelFormat, int iWidth, int iHeight, const int* piAttribList);
PFNWGLCREATEPBUFFERPROC fCreatePbuffer;
typedef BOOL (WINAPI * PFNWGLDESTROYPBUFFERPROC) (HANDLE hPbuffer);
PFNWGLDESTROYPBUFFERPROC fDestroyPbuffer;
typedef HDC (WINAPI * PFNWGLGETPBUFFERDCPROC) (HANDLE hPbuffer);
PFNWGLGETPBUFFERDCPROC fGetPbufferDC;
typedef BOOL (WINAPI * PFNWGLBINDTEXIMAGEPROC) (HANDLE hPbuffer, int iBuffer);
PFNWGLBINDTEXIMAGEPROC fBindTexImage;
typedef BOOL (WINAPI * PFNWGLRELEASETEXIMAGEPROC) (HANDLE hPbuffer, int iBuffer);
PFNWGLRELEASETEXIMAGEPROC fReleaseTexImage;
typedef BOOL (WINAPI * PFNWGLCHOOSEPIXELFORMATPROC) (HDC hdc, const int* piAttribIList, const FLOAT* pfAttribFList, UINT nMaxFormats, int* piFormats, UINT* nNumFormats);
PFNWGLCHOOSEPIXELFORMATPROC fChoosePixelFormat;
typedef BOOL (WINAPI * PFNWGLGETPIXELFORMATATTRIBIVPROC) (HDC hdc, int iPixelFormat, int iLayerPlane, UINT nAttributes, int* piAttributes, int* piValues);
PFNWGLGETPIXELFORMATATTRIBIVPROC fGetPixelFormatAttribiv;
typedef const char* (WINAPI * PFNWGLGETEXTENSIONSSTRINGPROC) (HDC hdc);
PFNWGLGETEXTENSIONSSTRINGPROC fGetExtensionsString;
typedef HGLRC (WINAPI * PFNWGLCREATECONTEXTATTRIBSPROC) (HDC hdc, HGLRC hShareContext, const int* attribList);
PFNWGLCREATECONTEXTATTRIBSPROC fCreateContextAttribs;
// WGL_NV_DX_interop:
// BOOL wglDXSetResourceShareHandleNV(void* dxObject, HANDLE shareHandle);
typedef BOOL (WINAPI * PFNWGLDXSETRESOURCESHAREHANDLEPROC) (void* dxObject, HANDLE shareHandle);
PFNWGLDXSETRESOURCESHAREHANDLEPROC fDXSetResourceShareHandle;
// HANDLE wglDXOpenDeviceNV(void* dxDevice);
typedef HANDLE (WINAPI * PFNWGLDXOPENDEVICEPROC) (void* dxDevice);
PFNWGLDXOPENDEVICEPROC fDXOpenDevice;
// BOOL wglDXCloseDeviceNV(HANDLE hDevice);
typedef BOOL (WINAPI * PFNWGLDXCLOSEDEVICEPROC) (HANDLE hDevice);
PFNWGLDXCLOSEDEVICEPROC fDXCloseDevice;
// HANDLE wglDXRegisterObjectNV(HANDLE hDevice, void* dxObject, GLuint name, GLenum type, GLenum access);
typedef HANDLE (WINAPI * PFNWGLDXREGISTEROBJECTPROC) (HANDLE hDevice, void* dxObject, GLuint name, GLenum type, GLenum access);
PFNWGLDXREGISTEROBJECTPROC fDXRegisterObject;
// BOOL wglDXUnregisterObjectNV(HANDLE hDevice, HANDLE hObject);
typedef BOOL (WINAPI * PFNWGLDXUNREGISTEROBJECT) (HANDLE hDevice, HANDLE hObject);
PFNWGLDXUNREGISTEROBJECT fDXUnregisterObject;
// BOOL wglDXObjectAccessNV(HANDLE hObject, GLenum access);
typedef BOOL (WINAPI * PFNWGLDXOBJECTACCESSPROC) (HANDLE hObject, GLenum access);
PFNWGLDXOBJECTACCESSPROC fDXObjectAccess;
// BOOL wglDXLockObjectsNV(HANDLE hDevice, GLint count, HANDLE* hObjects);
typedef BOOL (WINAPI * PFNWGLDXLOCKOBJECTSPROC) (HANDLE hDevice, GLint count, HANDLE* hObjects);
PFNWGLDXLOCKOBJECTSPROC fDXLockObjects;
// BOOL wglDXUnlockObjectsNV(HANDLE hDevice, GLint count, HANDLE* hObjects);
typedef BOOL (WINAPI * PFNWGLDXUNLOCKOBJECTSPROC) (HANDLE hDevice, GLint count, HANDLE* hObjects);
PFNWGLDXUNLOCKOBJECTSPROC fDXUnlockObjects;
bool EnsureInitialized();
HWND CreateDummyWindow(HDC* aWindowDC = nullptr);
bool HasRobustness() const { return mHasRobustness; }
bool HasDXInterop() const { return mHasDXInterop; }
bool HasDXInterop2() const { return mHasDXInterop2; }
bool IsInitialized() const { return mInitialized; }
HWND GetWindow() const { return mWindow; }
HDC GetWindowDC() const {return mWindowDC; }
HGLRC GetWindowGLContext() const {return mWindowGLContext; }
int GetWindowPixelFormat() const { return mWindowPixelFormat; }
PRLibrary* GetOGLLibrary() { return mOGLLibrary; }
private:
bool mInitialized;
PRLibrary* mOGLLibrary;
bool mHasRobustness;
bool mHasDXInterop;
bool mHasDXInterop2;
HWND mWindow;
HDC mWindowDC;
HGLRC mWindowGLContext;
int mWindowPixelFormat;
};
// a global WGLLibrary instance
extern WGLLibrary sWGLLib;
} /* namespace gl */
} /* namespace mozilla */
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