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firefox/toolkit/xre/glxtest/glxtest.cpp
Daniel Baumann 5e9a113729
Adding upstream version 140.0. 
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
2025-06-25 09:37:52 +02:00

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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* vim: sw=2 ts=8 et :
*/
/* 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/. */
//////////////////////////////////////////////////////////////////////////////
//
// Explanation: See bug 639842. Safely getting GL driver info on X11 is hard,
// because the only way to do that is to create a GL context and call
// glGetString(), but with bad drivers, just creating a GL context may crash.
//
// This file implements the idea to do that in a separate process.
//
// The only non-static function here is fire_glxtest_process(). It creates a
// pipe, publishes its 'read' end as the mozilla::widget::glxtest_pipe global
// variable, forks, and runs that GLX probe in the child process, which runs the
// childgltest() static function. This creates a X connection, a GLX context,
// calls glGetString, and writes that to the 'write' end of the pipe.
#include <cstdio>
#include <cstdlib>
#include <dlfcn.h>
#include <fcntl.h>
#include <unistd.h>
#include <getopt.h>
#include <vector>
#include <stdint.h>
#include <string.h>
#include <stdarg.h>
#include <gdk/gdk.h>
#if defined(MOZ_ASAN) || defined(FUZZING)
# include <signal.h>
#endif
#ifdef __SUNPRO_CC
# include <stdio.h>
#endif
#ifdef MOZ_X11
# include "X11/Xlib.h"
# include "X11/Xutil.h"
# include <X11/extensions/Xrandr.h>
#endif
#include <vector>
#include <sys/wait.h>
#include "mozilla/ScopeExit.h"
#include "mozilla/Types.h"
#include "mozilla/GfxInfoUtils.h"
#ifdef MOZ_X11
// stuff from glx.h
typedef struct __GLXcontextRec* GLXContext;
typedef XID GLXPixmap;
typedef XID GLXDrawable;
/* GLX 1.3 and later */
typedef struct __GLXFBConfigRec* GLXFBConfig;
typedef XID GLXFBConfigID;
typedef XID GLXContextID;
typedef XID GLXWindow;
typedef XID GLXPbuffer;
# define GLX_RGBA 4
# define GLX_RED_SIZE 8
# define GLX_GREEN_SIZE 9
# define GLX_BLUE_SIZE 10
# define GLX_DOUBLEBUFFER 5
#endif
// stuff from gl.h
typedef uint8_t GLubyte;
typedef uint32_t GLenum;
#define GL_VENDOR 0x1F00
#define GL_RENDERER 0x1F01
#define GL_VERSION 0x1F02
// GLX_MESA_query_renderer
// clang-format off
#define GLX_RENDERER_VENDOR_ID_MESA 0x8183
#define GLX_RENDERER_DEVICE_ID_MESA 0x8184
#define GLX_RENDERER_VERSION_MESA 0x8185
#define GLX_RENDERER_ACCELERATED_MESA 0x8186
#define GLX_RENDERER_VIDEO_MEMORY_MESA 0x8187
#define GLX_RENDERER_UNIFIED_MEMORY_ARCHITECTURE_MESA 0x8188
#define GLX_RENDERER_PREFERRED_PROFILE_MESA 0x8189
#define GLX_RENDERER_OPENGL_CORE_PROFILE_VERSION_MESA 0x818A
#define GLX_RENDERER_OPENGL_COMPATIBILITY_PROFILE_VERSION_MESA 0x818B
#define GLX_RENDERER_OPENGL_ES_PROFILE_VERSION_MESA 0x818C
#define GLX_RENDERER_OPENGL_ES2_PROFILE_VERSION_MESA 0x818D
#define GLX_RENDERER_ID_MESA 0x818E
// clang-format on
// stuff from egl.h
typedef intptr_t EGLAttrib;
typedef int EGLBoolean;
typedef void* EGLConfig;
typedef void* EGLContext;
typedef void* EGLDeviceEXT;
typedef void* EGLDisplay;
typedef unsigned int EGLenum;
typedef int EGLint;
typedef void* EGLNativeDisplayType;
typedef void* EGLSurface;
typedef void* (*PFNEGLGETPROCADDRESS)(const char*);
#define EGL_NO_CONTEXT nullptr
#define EGL_NO_SURFACE nullptr
#define EGL_FALSE 0
#define EGL_TRUE 1
#define EGL_OPENGL_ES2_BIT 0x0004
#define EGL_BLUE_SIZE 0x3022
#define EGL_GREEN_SIZE 0x3023
#define EGL_RED_SIZE 0x3024
#define EGL_NONE 0x3038
#define EGL_RENDERABLE_TYPE 0x3040
#define EGL_VENDOR 0x3053
#define EGL_EXTENSIONS 0x3055
#define EGL_CONTEXT_MAJOR_VERSION 0x3098
#define EGL_OPENGL_ES_API 0x30A0
#define EGL_OPENGL_API 0x30A2
#define EGL_DEVICE_EXT 0x322C
#define EGL_DRM_DEVICE_FILE_EXT 0x3233
#define EGL_DRM_RENDER_NODE_FILE_EXT 0x3377
// stuff from xf86drm.h
#define DRM_NODE_RENDER 2
#define DRM_NODE_MAX 3
typedef struct _drmPciDeviceInfo {
uint16_t vendor_id;
uint16_t device_id;
uint16_t subvendor_id;
uint16_t subdevice_id;
uint8_t revision_id;
} drmPciDeviceInfo, *drmPciDeviceInfoPtr;
typedef struct _drmDevice {
char** nodes;
int available_nodes;
int bustype;
union {
void* pci;
void* usb;
void* platform;
void* host1x;
} businfo;
union {
drmPciDeviceInfoPtr pci;
void* usb;
void* platform;
void* host1x;
} deviceinfo;
} drmDevice, *drmDevicePtr;
// Open libGL and load needed symbols
#if defined(__OpenBSD__) || defined(__NetBSD__)
# define LIBGL_FILENAME "libGL.so"
# define LIBGLES_FILENAME "libGLESv2.so"
# define LIBEGL_FILENAME "libEGL.so"
# define LIBDRM_FILENAME "libdrm.so"
#else
# define LIBGL_FILENAME "libGL.so.1"
# define LIBGLES_FILENAME "libGLESv2.so.2"
# define LIBEGL_FILENAME "libEGL.so.1"
# define LIBDRM_FILENAME "libdrm.so.2"
#endif
#ifdef MOZ_X11
static int x_error_handler(Display*, XErrorEvent* ev) {
record_error(
"X error, error_code=%d, "
"request_code=%d, minor_code=%d",
ev->error_code, ev->request_code, ev->minor_code);
record_flush();
_exit(EXIT_FAILURE);
}
#endif
// childgltest is declared inside extern "C" so that the name is not mangled.
// The name is used in build/valgrind/x86_64-pc-linux-gnu.sup to suppress
// memory leak errors because we run it inside a short lived fork and we don't
// care about leaking memory
extern "C" {
#define PCI_FILL_IDENT 0x0001
#define PCI_FILL_CLASS 0x0020
#define PCI_BASE_CLASS_DISPLAY 0x03
static void get_pci_status() {
log("GLX_TEST: get_pci_status start\n");
#if !defined(XP_FREEBSD) && !defined(XP_NETBSD) && !defined(XP_OPENBSD) && \
!defined(XP_SOLARIS)
if (access("/sys/bus/pci/", F_OK) != 0 &&
access("/sys/bus/pci_express/", F_OK) != 0) {
log("GLX_TEST: get_pci_status failed: cannot access /sys/bus/pci\n");
return;
}
void* libpci = dlopen("libpci.so.3", RTLD_LAZY);
if (!libpci) {
libpci = dlopen("libpci.so", RTLD_LAZY);
}
if (!libpci) {
record_warning("libpci missing");
return;
}
auto release = mozilla::MakeScopeExit([&] { dlclose(libpci); });
typedef struct pci_dev {
struct pci_dev* next;
uint16_t domain_16;
uint8_t bus, dev, func;
unsigned int known_fields;
uint16_t vendor_id, device_id;
uint16_t device_class;
} pci_dev;
typedef struct pci_access {
unsigned int method;
int writeable;
int buscentric;
char* id_file_name;
int free_id_name;
int numeric_ids;
unsigned int id_lookup_mode;
int debugging;
void* error;
void* warning;
void* debug;
pci_dev* devices;
} pci_access;
typedef pci_access* (*PCIALLOC)(void);
PCIALLOC pci_alloc = cast<PCIALLOC>(dlsym(libpci, "pci_alloc"));
typedef void (*PCIINIT)(pci_access*);
PCIINIT pci_init = cast<PCIINIT>(dlsym(libpci, "pci_init"));
typedef void (*PCICLEANUP)(pci_access*);
PCICLEANUP pci_cleanup = cast<PCICLEANUP>(dlsym(libpci, "pci_cleanup"));
typedef void (*PCISCANBUS)(pci_access*);
PCISCANBUS pci_scan_bus = cast<PCISCANBUS>(dlsym(libpci, "pci_scan_bus"));
typedef void (*PCIFILLINFO)(pci_dev*, int);
PCIFILLINFO pci_fill_info = cast<PCIFILLINFO>(dlsym(libpci, "pci_fill_info"));
if (!pci_alloc || !pci_cleanup || !pci_scan_bus || !pci_fill_info) {
dlclose(libpci);
record_warning("libpci missing methods");
return;
}
pci_access* pacc = pci_alloc();
if (!pacc) {
record_warning("libpci alloc failed");
return;
}
pci_init(pacc);
pci_scan_bus(pacc);
for (pci_dev* dev = pacc->devices; dev; dev = dev->next) {
pci_fill_info(dev, PCI_FILL_IDENT | PCI_FILL_CLASS);
if (dev->device_class >> 8 == PCI_BASE_CLASS_DISPLAY && dev->vendor_id &&
dev->device_id) {
record_value("PCI_VENDOR_ID\n0x%04x\nPCI_DEVICE_ID\n0x%04x\n",
dev->vendor_id, dev->device_id);
}
}
pci_cleanup(pacc);
#endif
log("GLX_TEST: get_pci_status finished\n");
}
static void set_render_device_path(const char* render_device_path) {
record_value("DRM_RENDERDEVICE\n%s\n", render_device_path);
}
static bool device_has_name(const drmDevice* device, const char* name) {
for (size_t i = 0; i < DRM_NODE_MAX; i++) {
if (!(device->available_nodes & (1 << i))) {
continue;
}
if (strcmp(device->nodes[i], name) == 0) {
return true;
}
}
return false;
}
static bool get_render_name(const char* name) {
void* libdrm = dlopen(LIBDRM_FILENAME, RTLD_LAZY);
if (!libdrm) {
record_warning("Failed to open libdrm");
return false;
}
auto release = mozilla::MakeScopeExit([&] { dlclose(libdrm); });
typedef int (*DRMGETDEVICES2)(uint32_t, drmDevicePtr*, int);
DRMGETDEVICES2 drmGetDevices2 =
cast<DRMGETDEVICES2>(dlsym(libdrm, "drmGetDevices2"));
typedef void (*DRMFREEDEVICE)(drmDevicePtr*);
DRMFREEDEVICE drmFreeDevice =
cast<DRMFREEDEVICE>(dlsym(libdrm, "drmFreeDevice"));
if (!drmGetDevices2 || !drmFreeDevice) {
record_warning(
"libdrm missing methods for drmGetDevices2 or drmFreeDevice");
return false;
}
uint32_t flags = 0;
int devices_len = drmGetDevices2(flags, nullptr, 0);
if (devices_len < 0) {
record_warning("drmGetDevices2 failed");
return false;
}
drmDevice** devices = (drmDevice**)calloc(devices_len, sizeof(drmDevice*));
if (!devices) {
record_warning("Allocation error");
return false;
}
devices_len = drmGetDevices2(flags, devices, devices_len);
if (devices_len < 0) {
free(devices);
record_warning("drmGetDevices2 failed");
return false;
}
const drmDevice* match = nullptr;
for (int i = 0; i < devices_len; i++) {
if (device_has_name(devices[i], name)) {
match = devices[i];
break;
}
}
// Fallback path for split kms/render devices - if only one drm render node
// exists it's most likely the one we're looking for.
if (match && !(match->available_nodes & (1 << DRM_NODE_RENDER))) {
match = nullptr;
for (int i = 0; i < devices_len; i++) {
if (devices[i]->available_nodes & (1 << DRM_NODE_RENDER)) {
if (!match) {
match = devices[i];
} else {
// more than one candidate found, stop trying.
match = nullptr;
break;
}
}
}
if (match) {
record_warning(
"DRM render node not clearly detectable. Falling back to using the "
"only one that was found.");
} else {
record_warning("DRM device has no render node");
}
}
bool result = false;
if (!match) {
record_warning("Cannot find DRM device");
} else {
set_render_device_path(match->nodes[DRM_NODE_RENDER]);
record_value(
"MESA_VENDOR_ID\n0x%04x\n"
"MESA_DEVICE_ID\n0x%04x\n",
match->deviceinfo.pci->vendor_id, match->deviceinfo.pci->device_id);
result = true;
}
for (int i = 0; i < devices_len; i++) {
drmFreeDevice(&devices[i]);
}
free(devices);
return result;
}
static bool get_egl_gl_status(EGLDisplay dpy,
PFNEGLGETPROCADDRESS eglGetProcAddress) {
typedef EGLBoolean (*PFNEGLCHOOSECONFIGPROC)(
EGLDisplay dpy, EGLint const* attrib_list, EGLConfig* configs,
EGLint config_size, EGLint* num_config);
PFNEGLCHOOSECONFIGPROC eglChooseConfig =
cast<PFNEGLCHOOSECONFIGPROC>(eglGetProcAddress("eglChooseConfig"));
typedef EGLBoolean (*PFNEGLBINDAPIPROC)(EGLint api);
PFNEGLBINDAPIPROC eglBindAPI =
cast<PFNEGLBINDAPIPROC>(eglGetProcAddress("eglBindAPI"));
typedef EGLContext (*PFNEGLCREATECONTEXTPROC)(
EGLDisplay dpy, EGLConfig config, EGLContext share_context,
EGLint const* attrib_list);
PFNEGLCREATECONTEXTPROC eglCreateContext =
cast<PFNEGLCREATECONTEXTPROC>(eglGetProcAddress("eglCreateContext"));
typedef EGLBoolean (*PFNEGLDESTROYCONTEXTPROC)(EGLDisplay dpy,
EGLContext ctx);
PFNEGLDESTROYCONTEXTPROC eglDestroyContext =
cast<PFNEGLDESTROYCONTEXTPROC>(eglGetProcAddress("eglDestroyContext"));
typedef EGLBoolean (*PFNEGLMAKECURRENTPROC)(
EGLDisplay dpy, EGLSurface draw, EGLSurface read, EGLContext context);
PFNEGLMAKECURRENTPROC eglMakeCurrent =
cast<PFNEGLMAKECURRENTPROC>(eglGetProcAddress("eglMakeCurrent"));
typedef const char* (*PFNEGLQUERYDEVICESTRINGEXTPROC)(EGLDeviceEXT device,
EGLint name);
PFNEGLQUERYDEVICESTRINGEXTPROC eglQueryDeviceStringEXT =
cast<PFNEGLQUERYDEVICESTRINGEXTPROC>(
eglGetProcAddress("eglQueryDeviceStringEXT"));
typedef EGLBoolean (*PFNEGLQUERYDISPLAYATTRIBEXTPROC)(
EGLDisplay dpy, EGLint name, EGLAttrib* value);
PFNEGLQUERYDISPLAYATTRIBEXTPROC eglQueryDisplayAttribEXT =
cast<PFNEGLQUERYDISPLAYATTRIBEXTPROC>(
eglGetProcAddress("eglQueryDisplayAttribEXT"));
log("GLX_TEST: get_egl_gl_status start\n");
if (!eglChooseConfig || !eglCreateContext || !eglDestroyContext ||
!eglMakeCurrent || !eglQueryDeviceStringEXT) {
record_warning("libEGL missing methods for GL test");
return false;
}
typedef GLubyte* (*PFNGLGETSTRING)(GLenum);
PFNGLGETSTRING glGetString =
cast<PFNGLGETSTRING>(eglGetProcAddress("glGetString"));
#if defined(__arm__) || defined(__aarch64__)
bool useGles = true;
#else
bool useGles = false;
#endif
std::vector<EGLint> attribs;
attribs.push_back(EGL_RED_SIZE);
attribs.push_back(8);
attribs.push_back(EGL_GREEN_SIZE);
attribs.push_back(8);
attribs.push_back(EGL_BLUE_SIZE);
attribs.push_back(8);
if (useGles) {
attribs.push_back(EGL_RENDERABLE_TYPE);
attribs.push_back(EGL_OPENGL_ES2_BIT);
}
attribs.push_back(EGL_NONE);
EGLConfig config;
EGLint num_config;
if (eglChooseConfig(dpy, attribs.data(), &config, 1, &num_config) ==
EGL_FALSE) {
record_warning("eglChooseConfig returned an error");
return false;
}
EGLenum api = useGles ? EGL_OPENGL_ES_API : EGL_OPENGL_API;
if (eglBindAPI(api) == EGL_FALSE) {
record_warning("eglBindAPI returned an error");
return false;
}
EGLint ctx_attrs[] = {EGL_CONTEXT_MAJOR_VERSION, 3, EGL_NONE};
EGLContext ectx = eglCreateContext(dpy, config, EGL_NO_CONTEXT, ctx_attrs);
if (!ectx) {
EGLint ctx_attrs_fallback[] = {EGL_CONTEXT_MAJOR_VERSION, 2, EGL_NONE};
ectx = eglCreateContext(dpy, config, EGL_NO_CONTEXT, ctx_attrs_fallback);
if (!ectx) {
record_warning("eglCreateContext returned an error");
return false;
}
}
if (eglMakeCurrent(dpy, EGL_NO_SURFACE, EGL_NO_SURFACE, ectx) == EGL_FALSE) {
eglDestroyContext(dpy, ectx);
record_warning("eglMakeCurrent returned an error");
return false;
}
eglDestroyContext(dpy, ectx);
// Implementations disagree about whether eglGetProcAddress or dlsym
// should be used for getting functions from the actual API, see
// https://github.com/anholt/libepoxy/commit/14f24485e33816139398d1bd170d617703473738
void* libgl = nullptr;
if (!glGetString) {
libgl = dlopen(LIBGL_FILENAME, RTLD_LAZY);
if (!libgl) {
libgl = dlopen(LIBGLES_FILENAME, RTLD_LAZY);
if (!libgl) {
record_warning(LIBGL_FILENAME " and " LIBGLES_FILENAME " missing");
return false;
}
}
glGetString = cast<PFNGLGETSTRING>(dlsym(libgl, "glGetString"));
if (!glGetString) {
dlclose(libgl);
record_warning("libEGL, libGL and libGLESv2 are missing glGetString");
return false;
}
}
auto release = mozilla::MakeScopeExit([&] {
if (libgl) {
dlclose(libgl);
}
});
const GLubyte* versionString = glGetString(GL_VERSION);
const GLubyte* vendorString = glGetString(GL_VENDOR);
const GLubyte* rendererString = glGetString(GL_RENDERER);
if (versionString && vendorString && rendererString) {
record_value("VENDOR\n%s\nRENDERER\n%s\nVERSION\n%s\nTFP\nTRUE\n",
vendorString, rendererString, versionString);
} else {
record_warning("EGL glGetString returned null");
return false;
}
EGLDeviceEXT device;
if (eglQueryDisplayAttribEXT(dpy, EGL_DEVICE_EXT, (EGLAttrib*)&device) ==
EGL_TRUE) {
const char* deviceExtensions =
eglQueryDeviceStringEXT(device, EGL_EXTENSIONS);
if (deviceExtensions &&
strstr(deviceExtensions, "EGL_MESA_device_software")) {
record_value("MESA_ACCELERATED\nFALSE\n");
} else {
const char* deviceString =
eglQueryDeviceStringEXT(device, EGL_DRM_DEVICE_FILE_EXT);
if (!deviceString || !get_render_name(deviceString)) {
const char* renderNodeString =
eglQueryDeviceStringEXT(device, EGL_DRM_RENDER_NODE_FILE_EXT);
if (renderNodeString) {
set_render_device_path(renderNodeString);
}
}
}
}
log("GLX_TEST: get_egl_gl_status finished\n");
return true;
}
static bool get_egl_status(EGLNativeDisplayType native_dpy) {
log("GLX_TEST: get_egl_status start\n");
EGLDisplay dpy = nullptr;
typedef EGLBoolean (*PFNEGLTERMINATEPROC)(EGLDisplay dpy);
PFNEGLTERMINATEPROC eglTerminate = nullptr;
void* libegl = dlopen(LIBEGL_FILENAME, RTLD_LAZY);
if (!libegl) {
record_warning("libEGL missing");
return false;
}
auto release = mozilla::MakeScopeExit([&] {
if (dpy) {
eglTerminate(dpy);
}
// Unload libegl here causes ASAN/MemLeaks failures on Linux
// as libegl may not be meant to be unloaded runtime.
// See 1304156 for reference.
// dlclose(libegl);
});
PFNEGLGETPROCADDRESS eglGetProcAddress =
cast<PFNEGLGETPROCADDRESS>(dlsym(libegl, "eglGetProcAddress"));
if (!eglGetProcAddress) {
record_warning("no eglGetProcAddress");
return false;
}
typedef EGLDisplay (*PFNEGLGETDISPLAYPROC)(void* native_display);
PFNEGLGETDISPLAYPROC eglGetDisplay =
cast<PFNEGLGETDISPLAYPROC>(eglGetProcAddress("eglGetDisplay"));
typedef EGLBoolean (*PFNEGLINITIALIZEPROC)(EGLDisplay dpy, EGLint* major,
EGLint* minor);
PFNEGLINITIALIZEPROC eglInitialize =
cast<PFNEGLINITIALIZEPROC>(eglGetProcAddress("eglInitialize"));
eglTerminate = cast<PFNEGLTERMINATEPROC>(eglGetProcAddress("eglTerminate"));
if (!eglGetDisplay || !eglInitialize || !eglTerminate) {
record_warning("libEGL missing methods");
return false;
}
dpy = eglGetDisplay(native_dpy);
if (!dpy) {
record_warning("libEGL no display");
return false;
}
EGLint major, minor;
if (!eglInitialize(dpy, &major, &minor)) {
record_warning("libEGL initialize failed");
return false;
}
typedef const char* (*PFNEGLGETDISPLAYDRIVERNAMEPROC)(EGLDisplay dpy);
PFNEGLGETDISPLAYDRIVERNAMEPROC eglGetDisplayDriverName =
cast<PFNEGLGETDISPLAYDRIVERNAMEPROC>(
eglGetProcAddress("eglGetDisplayDriverName"));
if (eglGetDisplayDriverName) {
const char* driDriver = eglGetDisplayDriverName(dpy);
if (driDriver) {
record_value("DRI_DRIVER\n%s\n", driDriver);
}
}
bool ret = get_egl_gl_status(dpy, eglGetProcAddress);
log("GLX_TEST: get_egl_status finished with return: %d\n", ret);
return ret;
}
#ifdef MOZ_X11
static void get_xrandr_info(Display* dpy) {
log("GLX_TEST: get_xrandr_info start\n");
// When running on remote X11 the xrandr version may be stuck on an ancient
// version. There are still setups using remote X11 out there, so make sure we
// don't crash.
int eventBase, errorBase, major, minor;
if (!XRRQueryExtension(dpy, &eventBase, &errorBase) ||
!XRRQueryVersion(dpy, &major, &minor) ||
!(major > 1 || (major == 1 && minor >= 4))) {
log("GLX_TEST: get_xrandr_info failed, old version.\n");
return;
}
Window root = RootWindow(dpy, DefaultScreen(dpy));
XRRProviderResources* pr = XRRGetProviderResources(dpy, root);
if (!pr) {
log("GLX_TEST: XRRGetProviderResources failed.\n");
return;
}
XRRScreenResources* res = XRRGetScreenResourcesCurrent(dpy, root);
if (!res) {
XRRFreeProviderResources(pr);
log("GLX_TEST: XRRGetScreenResourcesCurrent failed.\n");
return;
}
if (pr->nproviders != 0) {
record_value("DDX_DRIVER\n");
for (int i = 0; i < pr->nproviders; i++) {
XRRProviderInfo* info = XRRGetProviderInfo(dpy, res, pr->providers[i]);
if (info) {
record_value("%s%s", info->name, i == pr->nproviders - 1 ? ";\n" : ";");
XRRFreeProviderInfo(info);
}
}
}
XRRFreeScreenResources(res);
XRRFreeProviderResources(pr);
log("GLX_TEST: get_xrandr_info finished\n");
}
void glxtest() {
log("GLX_TEST: glxtest start\n");
Display* dpy = nullptr;
void* libgl = dlopen(LIBGL_FILENAME, RTLD_LAZY);
if (!libgl) {
record_error(LIBGL_FILENAME " missing");
return;
}
auto release = mozilla::MakeScopeExit([&] {
if (dpy) {
# ifdef MOZ_ASAN
XCloseDisplay(dpy);
# else
// This XSync call wanted to be instead:
// XCloseDisplay(dpy);
// but this can cause 1-minute stalls on certain setups using Nouveau, see
// bug 973192
XSync(dpy, False);
# endif
}
dlclose(libgl);
});
typedef void* (*PFNGLXGETPROCADDRESS)(const char*);
PFNGLXGETPROCADDRESS glXGetProcAddress =
cast<PFNGLXGETPROCADDRESS>(dlsym(libgl, "glXGetProcAddress"));
if (!glXGetProcAddress) {
record_error("no glXGetProcAddress");
return;
}
typedef GLXFBConfig* (*PFNGLXQUERYEXTENSION)(Display*, int*, int*);
PFNGLXQUERYEXTENSION glXQueryExtension =
cast<PFNGLXQUERYEXTENSION>(glXGetProcAddress("glXQueryExtension"));
typedef GLXFBConfig* (*PFNGLXQUERYVERSION)(Display*, int*, int*);
PFNGLXQUERYVERSION glXQueryVersion =
cast<PFNGLXQUERYVERSION>(dlsym(libgl, "glXQueryVersion"));
typedef XVisualInfo* (*PFNGLXCHOOSEVISUAL)(Display*, int, int*);
PFNGLXCHOOSEVISUAL glXChooseVisual =
cast<PFNGLXCHOOSEVISUAL>(glXGetProcAddress("glXChooseVisual"));
typedef GLXContext (*PFNGLXCREATECONTEXT)(Display*, XVisualInfo*, GLXContext,
Bool);
PFNGLXCREATECONTEXT glXCreateContext =
cast<PFNGLXCREATECONTEXT>(glXGetProcAddress("glXCreateContext"));
typedef Bool (*PFNGLXMAKECURRENT)(Display*, GLXDrawable, GLXContext);
PFNGLXMAKECURRENT glXMakeCurrent =
cast<PFNGLXMAKECURRENT>(glXGetProcAddress("glXMakeCurrent"));
typedef void (*PFNGLXDESTROYCONTEXT)(Display*, GLXContext);
PFNGLXDESTROYCONTEXT glXDestroyContext =
cast<PFNGLXDESTROYCONTEXT>(glXGetProcAddress("glXDestroyContext"));
typedef GLubyte* (*PFNGLGETSTRING)(GLenum);
PFNGLGETSTRING glGetString =
cast<PFNGLGETSTRING>(glXGetProcAddress("glGetString"));
if (!glXQueryExtension || !glXQueryVersion || !glXChooseVisual ||
!glXCreateContext || !glXMakeCurrent || !glXDestroyContext ||
!glGetString) {
record_error(LIBGL_FILENAME " missing methods");
return;
}
///// Open a connection to the X server /////
dpy = XOpenDisplay(nullptr);
if (!dpy) {
record_error("Unable to open a connection to the X server");
return;
}
///// Check that the GLX extension is present /////
if (!glXQueryExtension(dpy, nullptr, nullptr)) {
record_error("GLX extension missing");
return;
}
XSetErrorHandler(x_error_handler);
///// Get a visual /////
int attribs[] = {GLX_RGBA, GLX_RED_SIZE, 1, GLX_GREEN_SIZE,
1, GLX_BLUE_SIZE, 1, None};
XVisualInfo* vInfo = glXChooseVisual(dpy, DefaultScreen(dpy), attribs);
if (!vInfo) {
int attribs2[] = {GLX_RGBA, GLX_RED_SIZE, 1, GLX_GREEN_SIZE,
1, GLX_BLUE_SIZE, 1, GLX_DOUBLEBUFFER,
None};
vInfo = glXChooseVisual(dpy, DefaultScreen(dpy), attribs2);
if (!vInfo) {
record_error("No visuals found");
return;
}
}
// using a X11 Window instead of a GLXPixmap does not crash
// fglrx in indirect rendering. bug 680644
Window window;
XSetWindowAttributes swa;
swa.colormap = XCreateColormap(dpy, RootWindow(dpy, vInfo->screen),
vInfo->visual, AllocNone);
swa.border_pixel = 0;
window = XCreateWindow(dpy, RootWindow(dpy, vInfo->screen), 0, 0, 16, 16, 0,
vInfo->depth, InputOutput, vInfo->visual,
CWBorderPixel | CWColormap, &swa);
///// Get a GL context and make it current //////
GLXContext context = glXCreateContext(dpy, vInfo, nullptr, True);
glXMakeCurrent(dpy, window, context);
///// Look for this symbol to determine texture_from_pixmap support /////
void* glXBindTexImageEXT = glXGetProcAddress("glXBindTexImageEXT");
///// Get GL vendor/renderer/versions strings /////
const GLubyte* versionString = glGetString(GL_VERSION);
const GLubyte* vendorString = glGetString(GL_VENDOR);
const GLubyte* rendererString = glGetString(GL_RENDERER);
if (versionString && vendorString && rendererString) {
record_value("VENDOR\n%s\nRENDERER\n%s\nVERSION\n%s\nTFP\n%s\n",
vendorString, rendererString, versionString,
glXBindTexImageEXT ? "TRUE" : "FALSE");
} else {
record_error("glGetString returned null");
}
// If GLX_MESA_query_renderer is available, populate additional data.
typedef Bool (*PFNGLXQUERYCURRENTRENDERERINTEGERMESAPROC)(
int attribute, unsigned int* value);
PFNGLXQUERYCURRENTRENDERERINTEGERMESAPROC
glXQueryCurrentRendererIntegerMESAProc =
cast<PFNGLXQUERYCURRENTRENDERERINTEGERMESAPROC>(
glXGetProcAddress("glXQueryCurrentRendererIntegerMESA"));
if (glXQueryCurrentRendererIntegerMESAProc) {
unsigned int vendorId, deviceId, accelerated, videoMemoryMB;
glXQueryCurrentRendererIntegerMESAProc(GLX_RENDERER_VENDOR_ID_MESA,
&vendorId);
glXQueryCurrentRendererIntegerMESAProc(GLX_RENDERER_DEVICE_ID_MESA,
&deviceId);
glXQueryCurrentRendererIntegerMESAProc(GLX_RENDERER_ACCELERATED_MESA,
&accelerated);
glXQueryCurrentRendererIntegerMESAProc(GLX_RENDERER_VIDEO_MEMORY_MESA,
&videoMemoryMB);
// Truncate IDs to 4 digits- that's all PCI IDs are.
vendorId &= 0xFFFF;
deviceId &= 0xFFFF;
record_value(
"MESA_VENDOR_ID\n0x%04x\n"
"MESA_DEVICE_ID\n0x%04x\n"
"MESA_ACCELERATED\n%s\n"
"MESA_VRAM\n%dMB\n",
vendorId, deviceId, accelerated ? "TRUE" : "FALSE", videoMemoryMB);
}
// From Mesa's GL/internal/dri_interface.h, to be used by DRI clients.
typedef const char* (*PFNGLXGETSCREENDRIVERPROC)(Display* dpy, int scrNum);
PFNGLXGETSCREENDRIVERPROC glXGetScreenDriverProc =
cast<PFNGLXGETSCREENDRIVERPROC>(glXGetProcAddress("glXGetScreenDriver"));
if (glXGetScreenDriverProc) {
const char* driDriver = glXGetScreenDriverProc(dpy, DefaultScreen(dpy));
if (driDriver) {
record_value("DRI_DRIVER\n%s\n", driDriver);
}
}
// Get monitor and DDX driver information
get_xrandr_info(dpy);
///// Clean up. Indeed, the parent process might fail to kill us (e.g. if it
///// doesn't need to check GL info) so we might be staying alive for longer
///// than expected, so it's important to consume as little memory as
///// possible. Also we want to check that we're able to do that too without
///// generating X errors.
glXMakeCurrent(dpy, None,
nullptr); // must release the GL context before destroying it
glXDestroyContext(dpy, context);
XDestroyWindow(dpy, window);
XFreeColormap(dpy, swa.colormap);
XFree(vInfo);
record_value("TEST_TYPE\nGLX\n");
log("GLX_TEST: glxtest finished\n");
}
bool x11_egltest() {
log("GLX_TEST: x11_egltest start\n");
Display* dpy = XOpenDisplay(nullptr);
if (!dpy) {
log("GLX_TEST: XOpenDisplay failed.\n");
return false;
}
# ifdef MOZ_ASAN
auto release = mozilla::MakeScopeExit([&] {
// Bug 1715245: Closing the display connection here crashes on NV prop.
// drivers. Just leave it open, the process will exit shortly after anyway.
XCloseDisplay(dpy);
});
# endif
XSetErrorHandler(x_error_handler);
if (!get_egl_status(dpy)) {
return false;
}
// Bug 1667621: 30bit "Deep Color" is broken on EGL on Mesa (as of 2021/10).
// Disable all non-standard depths for the initial EGL roleout.
int screenCount = ScreenCount(dpy);
for (int idx = 0; idx < screenCount; idx++) {
int depth = DefaultDepth(dpy, idx);
if (depth != 24) {
log("GLX_TEST: DefaultDepth() is %d, expected to be 24. See Bug "
"1667621.\n",
depth);
return false;
}
}
// Get monitor and DDX driver information
get_xrandr_info(dpy);
record_value("TEST_TYPE\nEGL\n");
log("GLX_TEST: x11_egltest finished\n");
return true;
}
#endif
#ifdef MOZ_WAYLAND
void wayland_egltest() {
log("GLX_TEST: wayland_egltest start\n");
static auto sWlDisplayConnect = (struct wl_display * (*)(const char*))
dlsym(RTLD_DEFAULT, "wl_display_connect");
static auto sWlDisplayRoundtrip =
(int (*)(struct wl_display*))dlsym(RTLD_DEFAULT, "wl_display_roundtrip");
static auto sWlDisplayDisconnect = (void (*)(struct wl_display*))dlsym(
RTLD_DEFAULT, "wl_display_disconnect");
if (!sWlDisplayConnect || !sWlDisplayRoundtrip || !sWlDisplayDisconnect) {
record_error("Missing Wayland libraries");
return;
}
// NOTE: returns false to fall back to X11 when the Wayland socket doesn't
// exist but fails with record_error if something actually went wrong
struct wl_display* dpy = sWlDisplayConnect(nullptr);
if (!dpy) {
record_error("Could not connect to wayland display, WAYLAND_DISPLAY=%s",
getenv("WAYLAND_DISPLAY"));
return;
}
if (!get_egl_status((EGLNativeDisplayType)dpy)) {
record_error("EGL test failed");
}
// This is enough to crash some broken NVIDIA prime + Wayland setups, see
// https://github.com/NVIDIA/egl-wayland/issues/41 and bug 1768260.
sWlDisplayRoundtrip(dpy);
sWlDisplayDisconnect(dpy);
record_value("TEST_TYPE\nEGL\n");
log("GLX_TEST: wayland_egltest finished\n");
}
#endif
int childgltest(bool aWayland) {
log("GLX_TEST: childgltest start\n");
// Get a list of all GPUs from the PCI bus.
get_pci_status();
#ifdef MOZ_WAYLAND
if (aWayland) {
wayland_egltest();
}
#endif
#ifdef MOZ_X11
if (!aWayland) {
// TODO: --display command line argument is not properly handled
if (!x11_egltest()) {
glxtest();
}
}
#endif
// Finally write buffered data to the pipe.
record_flush();
log("GLX_TEST: childgltest finished\n");
return EXIT_SUCCESS;
}
} // extern "C"
static void PrintUsage() {
printf(
"Firefox OpenGL probe utility\n"
"\n"
"usage: glxtest [options]\n"
"\n"
"Options:\n"
"\n"
" -h --help show this message\n"
" -f --fd num where to print output, default it stdout\n"
" -w --wayland probe OpenGL/EGL on Wayland (default is "
"X11)\n"
"\n");
}
int main(int argc, char** argv) {
struct option longOptions[] = {{"help", no_argument, nullptr, 'h'},
{"fd", required_argument, nullptr, 'f'},
{"wayland", no_argument, nullptr, 'w'},
{nullptr, 0, nullptr, 0}};
const char* shortOptions = "hf:w";
int c;
bool wayland = false;
while ((c = getopt_long(argc, argv, shortOptions, longOptions, nullptr)) !=
-1) {
switch (c) {
case 'w':
wayland = true;
break;
case 'f':
output_pipe = atoi(optarg);
break;
case 'h':
#ifdef MOZ_WAYLAND
// Dummy call to mozgtk to prevent the linker from removing
// the dependency with --as-needed.
// see toolkit/library/moz.build for details.
gdk_display_get_default();
#endif
PrintUsage();
return 0;
default:
break;
}
}
if (getenv("MOZ_AVOID_OPENGL_ALTOGETHER")) {
const char* msg = "ERROR\nMOZ_AVOID_OPENGL_ALTOGETHER envvar set";
MOZ_UNUSED(write(output_pipe, msg, strlen(msg)));
exit(EXIT_FAILURE);
}
const char* env = getenv("MOZ_GFX_DEBUG");
enable_logging = env && *env == '1';
if (!enable_logging) {
close_logging();
}
#if defined(MOZ_ASAN) || defined(FUZZING)
// If handle_segv=1 (default), then glxtest crash will print a sanitizer
// report which can confuse the harness in fuzzing automation.
signal(SIGSEGV, SIG_DFL);
#endif
return childgltest(wayland);
}
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