diff --git a/src/gui/opengl/qopengldebug.cpp b/src/gui/opengl/qopengldebug.cpp index 90d062f4ddb..2355d0a8a7c 100644 --- a/src/gui/opengl/qopengldebug.cpp +++ b/src/gui/opengl/qopengldebug.cpp @@ -43,6 +43,7 @@ #include #include #include +#include #include "qopengldebug.h" @@ -1364,7 +1365,20 @@ bool QOpenGLDebugLogger::initialize() GET_DEBUG_PROC_ADDRESS(glGetDebugMessageLog); GET_DEBUG_PROC_ADDRESS(glPushDebugGroup); GET_DEBUG_PROC_ADDRESS(glPopDebugGroup); + + // Windows' Desktop GL doesn't allow resolution of "basic GL entry points" + // through wglGetProcAddress +#if defined(Q_OS_WIN) && !defined(QT_OPENGL_ES_2) + { + HMODULE handle = static_cast(QOpenGLFunctions::platformGLHandle()); + if (!handle) + handle = GetModuleHandleA("opengl32.dll"); + d->glGetPointerv = reinterpret_cast(GetProcAddress(handle, QByteArrayLiteral("glGetPointerv"))); + } +#else GET_DEBUG_PROC_ADDRESS(glGetPointerv) +#endif + #undef GET_DEBUG_PROC_ADDRESS glGetIntegerv(GL_MAX_DEBUG_MESSAGE_LENGTH, &d->maxMessageLength);