diff options
Diffstat (limited to 'src/VBox/Main/src-helper-apps/OpenGLTest/OpenGLTestDarwin.cpp')
| -rw-r--r-- | src/VBox/Main/src-helper-apps/OpenGLTest/OpenGLTestDarwin.cpp | 183 |
1 files changed, 183 insertions, 0 deletions
diff --git a/src/VBox/Main/src-helper-apps/OpenGLTest/OpenGLTestDarwin.cpp b/src/VBox/Main/src-helper-apps/OpenGLTest/OpenGLTestDarwin.cpp new file mode 100644 index 00000000..1a6f6c48 --- /dev/null +++ b/src/VBox/Main/src-helper-apps/OpenGLTest/OpenGLTestDarwin.cpp @@ -0,0 +1,183 @@ +/* $Id: OpenGLTestDarwin.cpp $ */ +/** @file + * VBox host opengl support test + */ + +/* + * Copyright (C) 2009-2022 Oracle and/or its affiliates. + * + * This file is part of VirtualBox base platform packages, as + * available from https://www.virtualbox.org. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation, in version 3 of the + * License. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see <https://www.gnu.org/licenses>. + * + * SPDX-License-Identifier: GPL-3.0-only + */ + + +/********************************************************************************************************************************* +* Header Files * +*********************************************************************************************************************************/ +#include <VBox/VBoxOGL.h> + +#include <IOKit/IOKitLib.h> +#include <OpenGL/OpenGL.h> +#include <ApplicationServices/ApplicationServices.h> +#include <OpenGL/gl.h> +#include <OpenGL/glu.h> + +#include <iprt/env.h> +#include <iprt/log.h> +#include <iprt/once.h> + + + +/** + * @callback_method_impl{FNRTONCE, + * For determining the cached VBoxOglIsOfflineRenderingAppropriate result.} + */ +static DECLCALLBACK(int32_t) vboxOglIsOfflineRenderingAppropriateOnce(void *pvUser) +{ + bool *pfAppropriate = (bool *)pvUser; + + /* It is assumed that it is makes sense to enable offline rendering + only in case if host has more than one GPU installed. This routine + counts all the PCI devices in IORegistry which have IOName property + set to "display". If the number of such devices is greater than one, + it sets pfAppropriate to TRUE, otherwise to FALSE. */ + + CFStringRef apKeyStrings[] = { CFSTR(kIOProviderClassKey), CFSTR(kIONameMatchKey) }; + CFStringRef apValueStrings[] = { CFSTR("IOPCIDevice"), CFSTR("display") }; + Assert(RT_ELEMENTS(apKeyStrings) == RT_ELEMENTS(apValueStrings)); + + CFDictionaryRef pMatchingDictionary = CFDictionaryCreate(kCFAllocatorDefault, + (const void **)apKeyStrings, + (const void **)apValueStrings, + RT_ELEMENTS(apKeyStrings), + &kCFTypeDictionaryKeyCallBacks, + &kCFTypeDictionaryValueCallBacks); + if (pMatchingDictionary) + { + /* The reference to pMatchingDictionary is consumed by the function below => no IORelease(pMatchingDictionary)! */ + io_iterator_t matchingServices; + kern_return_t krc = IOServiceGetMatchingServices(kIOMasterPortDefault, pMatchingDictionary, &matchingServices); + if (krc == kIOReturnSuccess) + { + io_object_t matchingService; + int cMatchingServices = 0; + + while ((matchingService = IOIteratorNext(matchingServices)) != 0) + { + cMatchingServices++; + IOObjectRelease(matchingService); + } + + *pfAppropriate = cMatchingServices > 1; + + IOObjectRelease(matchingServices); + } + } + + LogRel(("OpenGL: Offline rendering support is %s (pid=%d)\n", *pfAppropriate ? "ON" : "OFF", (int)getpid())); + return VINF_SUCCESS; +} + + +bool RTCALL VBoxOglIsOfflineRenderingAppropriate(void) +{ + /* In order to do not slowdown 3D engine which can ask about offline rendering several times, + let's cache the result and assume that renderers amount value is constant. Use the IPRT + execute once construct to make sure there aren't any threading issues. */ + static RTONCE s_Once = RTONCE_INITIALIZER; + static bool s_fCached = false; + int rc = RTOnce(&s_Once, vboxOglIsOfflineRenderingAppropriateOnce, &s_fCached); + AssertRC(rc); + return s_fCached; +} + + +bool RTCALL VBoxOglIs3DAccelerationSupported(void) +{ + if (RTEnvExist("VBOX_3D_FORCE_SUPPORTED")) + { + LogRel(("VBOX_3D_FORCE_SUPPORTED is specified, skipping 3D test, and treating as supported\n")); + return true; + } + + CGOpenGLDisplayMask cglDisplayMask = CGDisplayIDToOpenGLDisplayMask(CGMainDisplayID()); + CGLPixelFormatAttribute aAttribs[] = + { + kCGLPFADisplayMask, + (CGLPixelFormatAttribute)cglDisplayMask, + kCGLPFAAccelerated, + kCGLPFADoubleBuffer, + VBoxOglIsOfflineRenderingAppropriate() ? kCGLPFAAllowOfflineRenderers : (CGLPixelFormatAttribute)NULL, + (CGLPixelFormatAttribute)NULL + }; + CGLPixelFormatObj pPixelFormat = NULL; + GLint cPixelFormatsIgnored = 0; + CGLError rcCgl = CGLChoosePixelFormat(aAttribs, &pPixelFormat, &cPixelFormatsIgnored); + if (rcCgl != kCGLNoError) + { + LogRel(("OpenGL Info: 3D test unable to choose pixel format (rcCgl=0x%X)\n", rcCgl)); + return false; + } + + if (pPixelFormat) + { + CGLContextObj pCglContext = 0; + rcCgl = CGLCreateContext(pPixelFormat, NULL, &pCglContext); + CGLDestroyPixelFormat(pPixelFormat); + + if (rcCgl != kCGLNoError) + { + LogRel(("OpenGL Info: 3D test unable to create context (rcCgl=0x%X)\n", rcCgl)); + return false; + } + + if (pCglContext) + { + GLboolean isSupported = GL_TRUE; + + /* + * In the Cocoa port we depend on the GL_EXT_framebuffer_object & + * the GL_EXT_texture_rectangle extension. If they are not + * available, disable 3D support. + */ +#pragma clang diagnostic ignored "-Wdeprecated-declarations" /* gluCheckExtension deprecated since 10.10 - use MetalKit. */ + CGLSetCurrentContext(pCglContext); + const GLubyte *pszExts = glGetString(GL_EXTENSIONS); + isSupported = gluCheckExtension((const GLubyte *)"GL_EXT_framebuffer_object", pszExts); + if (isSupported) + { + isSupported = gluCheckExtension((const GLubyte *)"GL_EXT_texture_rectangle", pszExts); + if (!isSupported) + LogRel(("OpenGL Info: 3D test found that GL_EXT_texture_rectangle extension not supported.\n")); + } + else + LogRel(("OpenGL Info: 3D test found that GL_EXT_framebuffer_object extension not supported.\n")); + + CGLDestroyContext(pCglContext); + LogRel(("OpenGL Info: 3D test %spassed\n", isSupported == GL_TRUE ? "" : "not ")); + return isSupported == GL_TRUE; + } + + LogRel(("OpenGL Info: 3D test unable to create context (internal error).\n")); + } + else + LogRel(("OpenGL Info: 3D test unable to choose pixel format (internal error).\n")); + + return false; +} + |