зеркало из https://github.com/mozilla/gecko-dev.git
115 строки
3.7 KiB
C++
115 строки
3.7 KiB
C++
/* -*- 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 */
|