diff options
Diffstat (limited to 'gfx/gl/GLContextProviderWGL.cpp')
| -rw-r--r-- | gfx/gl/GLContextProviderWGL.cpp | 518 |
1 files changed, 518 insertions, 0 deletions
diff --git a/gfx/gl/GLContextProviderWGL.cpp b/gfx/gl/GLContextProviderWGL.cpp new file mode 100644 index 0000000000..c174d25048 --- /dev/null +++ b/gfx/gl/GLContextProviderWGL.cpp @@ -0,0 +1,518 @@ +/* -*- 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 "GLContextProvider.h" +#include "GLContextWGL.h" +#include "GLLibraryLoader.h" +#include "nsDebug.h" +#include "nsIWidget.h" +#include "gfxPlatform.h" +#include "gfxWindowsSurface.h" + +#include "gfxCrashReporterUtils.h" + +#include "prenv.h" + +#include "mozilla/gfx/gfxVars.h" +#include "mozilla/Preferences.h" +#include "mozilla/ScopeExit.h" +#include "mozilla/StaticPtr.h" +#include "mozilla/layers/CompositorOptions.h" +#include "mozilla/widget/CompositorWidget.h" +#include "mozilla/widget/WinCompositorWidget.h" + +namespace mozilla { +namespace gl { + +using namespace mozilla::gfx; +using namespace mozilla::widget; + +WGLLibrary sWGLLib; + +/* +ScopedWindow::~ScopedWindow() +{ + if (mDC) { + MOZ_ALWAYS_TRUE( ReleaseDC(mDC) ); + } + if (mWindow) { + MOZ_ALWAYS_TRUE( DestroyWindow(mWindow) ); + } +} +*/ +static HWND CreateDummyWindow() { + WNDCLASSW wc{}; + if (!GetClassInfoW(GetModuleHandle(nullptr), L"GLContextWGLClass", &wc)) { + wc = {}; + wc.style = CS_OWNDC; + wc.hInstance = GetModuleHandle(nullptr); + wc.lpfnWndProc = DefWindowProc; + wc.lpszClassName = L"GLContextWGLClass"; + if (!RegisterClassW(&wc)) { + NS_WARNING("Failed to register GLContextWGLClass?!"); + // er. failed to register our class? + return nullptr; + } + } + + return CreateWindowW(L"GLContextWGLClass", L"GLContextWGL", 0, 0, 0, 1, 1, + nullptr, nullptr, GetModuleHandle(nullptr), nullptr); +} + +static inline bool HasExtension(const char* aExtensions, + const char* aRequiredExtension) { + return GLContext::ListHasExtension( + reinterpret_cast<const GLubyte*>(aExtensions), aRequiredExtension); +} + +SymbolLoader WGLLibrary::GetSymbolLoader() const { + auto ret = SymbolLoader(*mOGLLibrary); + ret.mPfn = SymbolLoader::GetProcAddressT(mSymbols.fGetProcAddress); + return ret; +} + +bool WGLLibrary::EnsureInitialized() { + if (mInitialized) return true; + + mozilla::ScopedGfxFeatureReporter reporter("WGL"); + + std::wstring libGLFilename = L"Opengl32.dll"; + // SU_SPIES_DIRECTORY is for AMD CodeXL/gDEBugger + if (_wgetenv(L"SU_SPIES_DIRECTORY")) { + libGLFilename = + std::wstring(_wgetenv(L"SU_SPIES_DIRECTORY")) + L"\\opengl32.dll"; + } + + if (!mOGLLibrary) { + mOGLLibrary = LoadLibraryWithFlags(libGLFilename.c_str()); + if (!mOGLLibrary) { + NS_WARNING("Couldn't load OpenGL library."); + return false; + } + } + +#define SYMBOL(X) {(PRFuncPtr*)&mSymbols.f##X, {{"wgl" #X}}} +#define END_OF_SYMBOLS \ + { \ + nullptr, {} \ + } + + { + const auto loader = SymbolLoader(*mOGLLibrary); + const SymLoadStruct earlySymbols[] = {SYMBOL(CreateContext), + SYMBOL(MakeCurrent), + SYMBOL(GetProcAddress), + SYMBOL(DeleteContext), + SYMBOL(GetCurrentContext), + SYMBOL(GetCurrentDC), + END_OF_SYMBOLS}; + + if (!loader.LoadSymbols(earlySymbols)) { + NS_WARNING( + "Couldn't find required entry points in OpenGL DLL (early init)"); + return false; + } + } + + mDummyWindow = CreateDummyWindow(); + MOZ_ASSERT(mDummyWindow); + if (!mDummyWindow) return false; + auto cleanup = MakeScopeExit([&]() { Reset(); }); + + mRootDc = GetDC(mDummyWindow); + MOZ_ASSERT(mRootDc); + if (!mRootDc) return false; + + // -- + + { + PIXELFORMATDESCRIPTOR pfd{}; + pfd.nSize = sizeof(PIXELFORMATDESCRIPTOR); + pfd.nVersion = 1; + pfd.dwFlags = PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL; + // pfd.iPixelType = PFD_TYPE_RGBA; + // pfd.cColorBits = 24; + // pfd.cRedBits = 8; + // pfd.cGreenBits = 8; + // pfd.cBlueBits = 8; + // pfd.cAlphaBits = 8; + pfd.iLayerType = PFD_MAIN_PLANE; + + const auto pixelFormat = ChoosePixelFormat(mRootDc, &pfd); + MOZ_ASSERT(pixelFormat); + if (!pixelFormat) return false; + const bool setPixelFormatOk = SetPixelFormat(mRootDc, pixelFormat, nullptr); + MOZ_ASSERT(setPixelFormatOk); + if (!setPixelFormatOk) return false; + } + + // -- + + // create rendering context + mDummyGlrc = mSymbols.fCreateContext(mRootDc); + if (!mDummyGlrc) return false; + + const auto curCtx = mSymbols.fGetCurrentContext(); + const auto curDC = mSymbols.fGetCurrentDC(); + + if (!mSymbols.fMakeCurrent(mRootDc, mDummyGlrc)) { + NS_WARNING("wglMakeCurrent failed"); + return false; + } + const auto resetContext = + MakeScopeExit([&]() { mSymbols.fMakeCurrent(curDC, curCtx); }); + + const auto loader = GetSymbolLoader(); + + // Now we can grab all the other symbols that we couldn't without having + // a context current. + // clang-format off + const SymLoadStruct reqExtSymbols[] = { + { (PRFuncPtr*)&mSymbols.fCreatePbuffer, {{ "wglCreatePbufferARB", "wglCreatePbufferEXT" }} }, + { (PRFuncPtr*)&mSymbols.fDestroyPbuffer, {{ "wglDestroyPbufferARB", "wglDestroyPbufferEXT" }} }, + { (PRFuncPtr*)&mSymbols.fGetPbufferDC, {{ "wglGetPbufferDCARB", "wglGetPbufferDCEXT" }} }, + { (PRFuncPtr*)&mSymbols.fReleasePbufferDC, {{ "wglReleasePbufferDCARB", "wglReleasePbufferDCEXT" }} }, + // { (PRFuncPtr*)&mSymbols.fBindTexImage, {{ "wglBindTexImageARB", "wglBindTexImageEXT" }} }, + // { (PRFuncPtr*)&mSymbols.fReleaseTexImage, {{ "wglReleaseTexImageARB", "wglReleaseTexImageEXT" }} }, + { (PRFuncPtr*)&mSymbols.fChoosePixelFormat, {{ "wglChoosePixelFormatARB", "wglChoosePixelFormatEXT" }} }, + // { (PRFuncPtr*)&mSymbols.fGetPixelFormatAttribiv, {{ "wglGetPixelFormatAttribivARB", "wglGetPixelFormatAttribivEXT" }} }, + SYMBOL(GetExtensionsStringARB), + END_OF_SYMBOLS + }; + // clang-format on + if (!loader.LoadSymbols(reqExtSymbols)) { + NS_WARNING("reqExtSymbols missing"); + return false; + } + + // -- + + const auto extString = mSymbols.fGetExtensionsStringARB(mRootDc); + MOZ_ASSERT(extString); + MOZ_ASSERT(HasExtension(extString, "WGL_ARB_extensions_string")); + + // -- + + if (HasExtension(extString, "WGL_ARB_create_context")) { + const SymLoadStruct createContextSymbols[] = { + SYMBOL(CreateContextAttribsARB), END_OF_SYMBOLS}; + if (loader.LoadSymbols(createContextSymbols)) { + if (HasExtension(extString, "WGL_ARB_create_context_robustness")) { + mHasRobustness = true; + } + } else { + NS_ERROR( + "WGL_ARB_create_context announced without supplying its functions."); + ClearSymbols(createContextSymbols); + } + } + + // -- + + bool hasDXInterop2 = HasExtension(extString, "WGL_NV_DX_interop2"); + if (gfxVars::DXInterop2Blocked() && + !StaticPrefs::gl_ignore_dx_interop2_blacklist()) { + hasDXInterop2 = false; + } + + if (hasDXInterop2) { + const SymLoadStruct dxInteropSymbols[] = { + SYMBOL(DXSetResourceShareHandleNV), + SYMBOL(DXOpenDeviceNV), + SYMBOL(DXCloseDeviceNV), + SYMBOL(DXRegisterObjectNV), + SYMBOL(DXUnregisterObjectNV), + SYMBOL(DXObjectAccessNV), + SYMBOL(DXLockObjectsNV), + SYMBOL(DXUnlockObjectsNV), + END_OF_SYMBOLS}; + if (!loader.LoadSymbols(dxInteropSymbols)) { + NS_ERROR( + "WGL_NV_DX_interop2 announceed without supplying its functions."); + ClearSymbols(dxInteropSymbols); + } + } + + // -- + + cleanup.release(); + + mInitialized = true; + + reporter.SetSuccessful(); + return true; +} + +#undef SYMBOL +#undef END_OF_SYMBOLS + +void WGLLibrary::Reset() { + if (mDummyGlrc) { + (void)mSymbols.fDeleteContext(mDummyGlrc); + mDummyGlrc = nullptr; + } + if (mRootDc) { + (void)ReleaseDC(mDummyWindow, mRootDc); + mRootDc = nullptr; + } + if (mDummyWindow) { + (void)DestroyWindow(mDummyWindow); + mDummyWindow = nullptr; + } +} + +GLContextWGL::GLContextWGL(const GLContextDesc& desc, HDC aDC, HGLRC aContext, + HWND aWindow) + : GLContext(desc, nullptr, false), + mDC(aDC), + mContext(aContext), + mWnd(aWindow), + mPBuffer(nullptr), + mPixelFormat(0) {} + +GLContextWGL::GLContextWGL(const GLContextDesc& desc, HANDLE aPbuffer, HDC aDC, + HGLRC aContext, int aPixelFormat) + : GLContext(desc, nullptr, false), + mDC(aDC), + mContext(aContext), + mWnd(nullptr), + mPBuffer(aPbuffer), + mPixelFormat(aPixelFormat) {} + +GLContextWGL::~GLContextWGL() { + MarkDestroyed(); + + (void)sWGLLib.mSymbols.fDeleteContext(mContext); + + if (mPBuffer) { + (void)sWGLLib.mSymbols.fReleasePbufferDC(mPBuffer, mDC); + (void)sWGLLib.mSymbols.fDestroyPbuffer(mPBuffer); + } + if (mWnd) { + (void)ReleaseDC(mWnd, mDC); + DestroyWindow(mWnd); + } +} + +bool GLContextWGL::MakeCurrentImpl() const { + const bool succeeded = sWGLLib.mSymbols.fMakeCurrent(mDC, mContext); + NS_ASSERTION(succeeded, "Failed to make GL context current!"); + return succeeded; +} + +bool GLContextWGL::IsCurrentImpl() const { + return sWGLLib.mSymbols.fGetCurrentContext() == mContext; +} + +bool GLContextWGL::SwapBuffers() { + if (!mIsDoubleBuffered) return false; + return ::SwapBuffers(mDC); +} + +void GLContextWGL::GetWSIInfo(nsCString* const out) const { + out->AppendLiteral("wglGetExtensionsString: "); + out->Append(sWGLLib.mSymbols.fGetExtensionsStringARB(mDC)); +} + +HGLRC +WGLLibrary::CreateContextWithFallback(const HDC dc, + const bool tryRobustBuffers) const { + if (mHasRobustness) { + if (tryRobustBuffers) { + const int attribs[] = {LOCAL_WGL_CONTEXT_FLAGS_ARB, + LOCAL_WGL_CONTEXT_ROBUST_ACCESS_BIT_ARB, + LOCAL_WGL_CONTEXT_RESET_NOTIFICATION_STRATEGY_ARB, + LOCAL_WGL_LOSE_CONTEXT_ON_RESET_ARB, 0}; + const auto context = + mSymbols.fCreateContextAttribsARB(dc, nullptr, attribs); + if (context) return context; + } + + const int attribs[] = {LOCAL_WGL_CONTEXT_RESET_NOTIFICATION_STRATEGY_ARB, + LOCAL_WGL_LOSE_CONTEXT_ON_RESET_ARB, 0}; + const auto context = + mSymbols.fCreateContextAttribsARB(dc, nullptr, attribs); + if (context) return context; + } + if (mSymbols.fCreateContextAttribsARB) { + const auto context = + mSymbols.fCreateContextAttribsARB(dc, nullptr, nullptr); + if (context) return context; + } + return mSymbols.fCreateContext(dc); +} + +static RefPtr<GLContext> CreateForWidget(const HWND window, + const bool isWebRender, + const bool requireAccelerated) { + auto& wgl = sWGLLib; + if (!wgl.EnsureInitialized()) return nullptr; + + const auto dc = GetDC(window); + if (!dc) return nullptr; + auto cleanupDc = MakeScopeExit([&]() { (void)ReleaseDC(window, dc); }); + + int chosenFormat; + UINT foundFormats = 0; + + if (!foundFormats) { + const int kAttribs[] = {LOCAL_WGL_DRAW_TO_WINDOW_ARB, + true, + LOCAL_WGL_SUPPORT_OPENGL_ARB, + true, + LOCAL_WGL_DOUBLE_BUFFER_ARB, + true, + LOCAL_WGL_ACCELERATION_ARB, + LOCAL_WGL_FULL_ACCELERATION_ARB, + 0}; + const int kAttribsForWebRender[] = {LOCAL_WGL_DRAW_TO_WINDOW_ARB, + true, + LOCAL_WGL_SUPPORT_OPENGL_ARB, + true, + LOCAL_WGL_DOUBLE_BUFFER_ARB, + true, + LOCAL_WGL_DEPTH_BITS_ARB, + 24, + LOCAL_WGL_ACCELERATION_ARB, + LOCAL_WGL_FULL_ACCELERATION_ARB, + 0}; + const int* attribs; + if (isWebRender) { + attribs = kAttribsForWebRender; + } else { + attribs = kAttribs; + } + + if (!wgl.mSymbols.fChoosePixelFormat(wgl.RootDc(), attribs, nullptr, 1, + &chosenFormat, &foundFormats)) { + foundFormats = 0; + } + } + if (!foundFormats) { + if (requireAccelerated) return nullptr; + + const int kAttribs[] = {LOCAL_WGL_DRAW_TO_WINDOW_ARB, + true, + LOCAL_WGL_SUPPORT_OPENGL_ARB, + true, + LOCAL_WGL_DOUBLE_BUFFER_ARB, + true, + 0}; + const int kAttribsForWebRender[] = {LOCAL_WGL_DRAW_TO_WINDOW_ARB, + true, + LOCAL_WGL_SUPPORT_OPENGL_ARB, + true, + LOCAL_WGL_DOUBLE_BUFFER_ARB, + true, + LOCAL_WGL_DEPTH_BITS_ARB, + 24, + 0}; + + const int* attribs; + if (isWebRender) { + attribs = kAttribsForWebRender; + } else { + attribs = kAttribs; + } + + if (!wgl.mSymbols.fChoosePixelFormat(wgl.RootDc(), attribs, nullptr, 1, + &chosenFormat, &foundFormats)) { + foundFormats = 0; + } + } + if (!foundFormats) return nullptr; + + // We need to make sure we call SetPixelFormat -after- calling + // EnsureInitialized, otherwise it can load/unload the dll and + // wglCreateContext will fail. + + SetPixelFormat(dc, chosenFormat, nullptr); + const auto context = sWGLLib.CreateContextWithFallback(dc, false); + if (!context) return nullptr; + + const RefPtr<GLContextWGL> gl = new GLContextWGL({}, dc, context); + cleanupDc.release(); + gl->mIsDoubleBuffered = true; + if (!gl->Init()) return nullptr; + + return gl; +} + +already_AddRefed<GLContext> GLContextProviderWGL::CreateForCompositorWidget( + CompositorWidget* aCompositorWidget, bool aHardwareWebRender, + bool aForceAccelerated) { + if (!aCompositorWidget) { + MOZ_ASSERT(false); + return nullptr; + } + return CreateForWidget(aCompositorWidget->AsWindows()->GetHwnd(), + aHardwareWebRender, aForceAccelerated) + .forget(); +} + +/*static*/ +already_AddRefed<GLContext> GLContextProviderWGL::CreateHeadless( + const GLContextCreateDesc& desc, nsACString* const out_failureId) { + auto& wgl = sWGLLib; + if (!wgl.EnsureInitialized()) return nullptr; + + int chosenFormat; + UINT foundFormats = 0; + + if (!foundFormats) { + const int kAttribs[] = {LOCAL_WGL_DRAW_TO_PBUFFER_ARB, + true, + LOCAL_WGL_SUPPORT_OPENGL_ARB, + true, + LOCAL_WGL_ACCELERATION_ARB, + LOCAL_WGL_FULL_ACCELERATION_ARB, + 0}; + if (!wgl.mSymbols.fChoosePixelFormat(wgl.RootDc(), kAttribs, nullptr, 1, + &chosenFormat, &foundFormats)) { + foundFormats = 0; + } + } + if (!foundFormats) { + const int kAttribs[] = {LOCAL_WGL_DRAW_TO_PBUFFER_ARB, true, + LOCAL_WGL_SUPPORT_OPENGL_ARB, true, 0}; + if (!wgl.mSymbols.fChoosePixelFormat(wgl.RootDc(), kAttribs, nullptr, 1, + &chosenFormat, &foundFormats)) { + foundFormats = 0; + } + } + if (!foundFormats) return nullptr; + const int kPbufferAttribs[] = {0}; + const auto pbuffer = wgl.mSymbols.fCreatePbuffer(wgl.RootDc(), chosenFormat, + 1, 1, kPbufferAttribs); + if (!pbuffer) return nullptr; + auto cleanupPbuffer = + MakeScopeExit([&]() { (void)wgl.mSymbols.fDestroyPbuffer(pbuffer); }); + + const auto dc = wgl.mSymbols.fGetPbufferDC(pbuffer); + if (!dc) return nullptr; + auto cleanupDc = MakeScopeExit( + [&]() { (void)wgl.mSymbols.fReleasePbufferDC(pbuffer, dc); }); + + const auto context = wgl.CreateContextWithFallback(dc, true); + if (!context) return nullptr; + + const auto fullDesc = GLContextDesc{desc, true}; + const RefPtr<GLContextWGL> gl = + new GLContextWGL(fullDesc, pbuffer, dc, context, chosenFormat); + cleanupPbuffer.release(); + cleanupDc.release(); + if (!gl->Init()) return nullptr; + + return RefPtr<GLContext>(gl.get()).forget(); +} + +/*static*/ +GLContext* GLContextProviderWGL::GetGlobalContext() { return nullptr; } + +/*static*/ +void GLContextProviderWGL::Shutdown() {} + +} /* namespace gl */ +} /* namespace mozilla */ |