widget/xpwidgets/GfxInfoX11.cpp@44a2da4a2ab2
widget/xpwidgets/GfxInfoX11.cpp
Fri, 16 Jan 2015 04:50:19 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Fri, 16 Jan 2015 04:50:19 +0100
- branch
- TOR_BUG_9701
- changeset 13
- 44a2da4a2ab2
- permissions
- -rw-r--r--
Replace accessor implementation with direct member state manipulation, by
request https://trac.torproject.org/projects/tor/ticket/9701#comment:32
1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
2 * vim: sw=2 ts=8 et :
3 */
4 /* This Source Code Form is subject to the terms of the Mozilla Public
5 * License, v. 2.0. If a copy of the MPL was not distributed with this
6 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
8 #include <unistd.h>
9 #include <sys/types.h>
10 #include <sys/wait.h>
11 #include <errno.h>
12 #include <sys/utsname.h>
13 #include "nsCRTGlue.h"
14 #include "prenv.h"
16 #include "GfxInfoX11.h"
18 #ifdef MOZ_CRASHREPORTER
19 #include "nsExceptionHandler.h"
20 #include "nsICrashReporter.h"
21 #endif
23 namespace mozilla {
24 namespace widget {
26 #ifdef DEBUG
27 NS_IMPL_ISUPPORTS_INHERITED(GfxInfo, GfxInfoBase, nsIGfxInfoDebug)
28 #endif
30 // these global variables will be set when firing the glxtest process
31 int glxtest_pipe = 0;
32 pid_t glxtest_pid = 0;
34 nsresult
35 GfxInfo::Init()
36 {
37 mGLMajorVersion = 0;
38 mMajorVersion = 0;
39 mMinorVersion = 0;
40 mRevisionVersion = 0;
41 mIsMesa = false;
42 mIsNVIDIA = false;
43 mIsFGLRX = false;
44 mIsNouveau = false;
45 mIsIntel = false;
46 mIsOldSwrast = false;
47 mIsLlvmpipe = false;
48 mHasTextureFromPixmap = false;
49 return GfxInfoBase::Init();
50 }
52 void
53 GfxInfo::GetData()
54 {
55 // to understand this function, see bug 639842. We retrieve the OpenGL driver information in a
56 // separate process to protect against bad drivers.
58 // if glxtest_pipe == 0, that means that we already read the information
59 if (!glxtest_pipe)
60 return;
62 enum { buf_size = 1024 };
63 char buf[buf_size];
64 ssize_t bytesread = read(glxtest_pipe,
65 &buf,
66 buf_size-1); // -1 because we'll append a zero
67 close(glxtest_pipe);
68 glxtest_pipe = 0;
70 // bytesread < 0 would mean that the above read() call failed.
71 // This should never happen. If it did, the outcome would be to blacklist anyway.
72 if (bytesread < 0)
73 bytesread = 0;
75 // let buf be a zero-terminated string
76 buf[bytesread] = 0;
78 // Wait for the glxtest process to finish. This serves 2 purposes:
79 // * avoid having a zombie glxtest process laying around
80 // * get the glxtest process status info.
81 int glxtest_status = 0;
82 bool wait_for_glxtest_process = true;
83 bool waiting_for_glxtest_process_failed = false;
84 int waitpid_errno = 0;
85 while(wait_for_glxtest_process) {
86 wait_for_glxtest_process = false;
87 if (waitpid(glxtest_pid, &glxtest_status, 0) == -1) {
88 waitpid_errno = errno;
89 if (waitpid_errno == EINTR) {
90 wait_for_glxtest_process = true;
91 } else {
92 // Bug 718629
93 // ECHILD happens when the glxtest process got reaped got reaped after a PR_CreateProcess
94 // as per bug 227246. This shouldn't matter, as we still seem to get the data
95 // from the pipe, and if we didn't, the outcome would be to blacklist anyway.
96 waiting_for_glxtest_process_failed = (waitpid_errno != ECHILD);
97 }
98 }
99 }
101 bool exited_with_error_code = !waiting_for_glxtest_process_failed &&
102 WIFEXITED(glxtest_status) &&
103 WEXITSTATUS(glxtest_status) != EXIT_SUCCESS;
104 bool received_signal = !waiting_for_glxtest_process_failed &&
105 WIFSIGNALED(glxtest_status);
107 bool error = waiting_for_glxtest_process_failed || exited_with_error_code || received_signal;
109 nsCString textureFromPixmap;
110 nsCString *stringToFill = nullptr;
111 char *bufptr = buf;
112 if (!error) {
113 while(true) {
114 char *line = NS_strtok("\n", &bufptr);
115 if (!line)
116 break;
117 if (stringToFill) {
118 stringToFill->Assign(line);
119 stringToFill = nullptr;
120 }
121 else if(!strcmp(line, "VENDOR"))
122 stringToFill = &mVendor;
123 else if(!strcmp(line, "RENDERER"))
124 stringToFill = &mRenderer;
125 else if(!strcmp(line, "VERSION"))
126 stringToFill = &mVersion;
127 else if(!strcmp(line, "TFP"))
128 stringToFill = &textureFromPixmap;
129 }
130 }
132 if (!strcmp(textureFromPixmap.get(), "TRUE"))
133 mHasTextureFromPixmap = true;
135 // only useful for Linux kernel version check for FGLRX driver.
136 // assumes X client == X server, which is sad.
137 struct utsname unameobj;
138 if (!uname(&unameobj))
139 {
140 mOS.Assign(unameobj.sysname);
141 mOSRelease.Assign(unameobj.release);
142 }
144 const char *spoofedVendor = PR_GetEnv("MOZ_GFX_SPOOF_GL_VENDOR");
145 if (spoofedVendor)
146 mVendor.Assign(spoofedVendor);
147 const char *spoofedRenderer = PR_GetEnv("MOZ_GFX_SPOOF_GL_RENDERER");
148 if (spoofedRenderer)
149 mRenderer.Assign(spoofedRenderer);
150 const char *spoofedVersion = PR_GetEnv("MOZ_GFX_SPOOF_GL_VERSION");
151 if (spoofedVersion)
152 mVersion.Assign(spoofedVersion);
153 const char *spoofedOS = PR_GetEnv("MOZ_GFX_SPOOF_OS");
154 if (spoofedOS)
155 mOS.Assign(spoofedOS);
156 const char *spoofedOSRelease = PR_GetEnv("MOZ_GFX_SPOOF_OS_RELEASE");
157 if (spoofedOSRelease)
158 mOSRelease.Assign(spoofedOSRelease);
160 if (error ||
161 mVendor.IsEmpty() ||
162 mRenderer.IsEmpty() ||
163 mVersion.IsEmpty() ||
164 mOS.IsEmpty() ||
165 mOSRelease.IsEmpty())
166 {
167 mAdapterDescription.AppendLiteral("GLXtest process failed");
168 if (waiting_for_glxtest_process_failed)
169 mAdapterDescription.AppendPrintf(" (waitpid failed with errno=%d for pid %d)", waitpid_errno, glxtest_pid);
170 if (exited_with_error_code)
171 mAdapterDescription.AppendPrintf(" (exited with status %d)", WEXITSTATUS(glxtest_status));
172 if (received_signal)
173 mAdapterDescription.AppendPrintf(" (received signal %d)", WTERMSIG(glxtest_status));
174 if (bytesread) {
175 mAdapterDescription.AppendLiteral(": ");
176 mAdapterDescription.Append(nsDependentCString(buf));
177 mAdapterDescription.AppendLiteral("\n");
178 }
179 #ifdef MOZ_CRASHREPORTER
180 CrashReporter::AppendAppNotesToCrashReport(mAdapterDescription);
181 #endif
182 return;
183 }
185 mAdapterDescription.Append(mVendor);
186 mAdapterDescription.AppendLiteral(" -- ");
187 mAdapterDescription.Append(mRenderer);
189 nsAutoCString note;
190 note.Append("OpenGL: ");
191 note.Append(mAdapterDescription);
192 note.Append(" -- ");
193 note.Append(mVersion);
194 if (mHasTextureFromPixmap)
195 note.Append(" -- texture_from_pixmap");
196 note.Append("\n");
197 #ifdef MOZ_CRASHREPORTER
198 CrashReporter::AppendAppNotesToCrashReport(note);
199 #endif
201 // determine the major OpenGL version. That's the first integer in the version string.
202 mGLMajorVersion = strtol(mVersion.get(), 0, 10);
204 // determine driver type (vendor) and where in the version string
205 // the actual driver version numbers should be expected to be found (whereToReadVersionNumbers)
206 const char *whereToReadVersionNumbers = nullptr;
207 const char *Mesa_in_version_string = strstr(mVersion.get(), "Mesa");
208 if (Mesa_in_version_string) {
209 mIsMesa = true;
210 // with Mesa, the version string contains "Mesa major.minor" and that's all the version information we get:
211 // there is no actual driver version info.
212 whereToReadVersionNumbers = Mesa_in_version_string + strlen("Mesa");
213 if (strcasestr(mVendor.get(), "nouveau"))
214 mIsNouveau = true;
215 if (strcasestr(mRenderer.get(), "intel")) // yes, intel is in the renderer string
216 mIsIntel = true;
217 if (strcasestr(mRenderer.get(), "llvmpipe"))
218 mIsLlvmpipe = true;
219 if (strcasestr(mRenderer.get(), "software rasterizer"))
220 mIsOldSwrast = true;
221 } else if (strstr(mVendor.get(), "NVIDIA Corporation")) {
222 mIsNVIDIA = true;
223 // with the NVIDIA driver, the version string contains "NVIDIA major.minor"
224 // note that here the vendor and version strings behave differently, that's why we don't put this above
225 // alongside Mesa_in_version_string.
226 const char *NVIDIA_in_version_string = strstr(mVersion.get(), "NVIDIA");
227 if (NVIDIA_in_version_string)
228 whereToReadVersionNumbers = NVIDIA_in_version_string + strlen("NVIDIA");
229 } else if (strstr(mVendor.get(), "ATI Technologies Inc")) {
230 mIsFGLRX = true;
231 // with the FGLRX driver, the version string only gives a OpenGL version :/ so let's return that.
232 // that can at least give a rough idea of how old the driver is.
233 whereToReadVersionNumbers = mVersion.get();
234 }
236 // read major.minor version numbers of the driver (not to be confused with the OpenGL version)
237 if (whereToReadVersionNumbers) {
238 // copy into writable buffer, for tokenization
239 strncpy(buf, whereToReadVersionNumbers, buf_size);
240 bufptr = buf;
242 // now try to read major.minor version numbers. In case of failure, gracefully exit: these numbers have
243 // been initialized as 0 anyways
244 char *token = NS_strtok(".", &bufptr);
245 if (token) {
246 mMajorVersion = strtol(token, 0, 10);
247 token = NS_strtok(".", &bufptr);
248 if (token) {
249 mMinorVersion = strtol(token, 0, 10);
250 token = NS_strtok(".", &bufptr);
251 if (token)
252 mRevisionVersion = strtol(token, 0, 10);
253 }
254 }
255 }
256 }
258 static inline uint64_t version(uint32_t major, uint32_t minor, uint32_t revision = 0)
259 {
260 return (uint64_t(major) << 32) + (uint64_t(minor) << 16) + uint64_t(revision);
261 }
263 const nsTArray<GfxDriverInfo>&
264 GfxInfo::GetGfxDriverInfo()
265 {
266 // Nothing here yet.
267 //if (!mDriverInfo->Length()) {
268 //
269 //}
270 return *mDriverInfo;
271 }
273 nsresult
274 GfxInfo::GetFeatureStatusImpl(int32_t aFeature,
275 int32_t *aStatus,
276 nsAString & aSuggestedDriverVersion,
277 const nsTArray<GfxDriverInfo>& aDriverInfo,
278 OperatingSystem* aOS /* = nullptr */)
280 {
281 GetData();
283 NS_ENSURE_ARG_POINTER(aStatus);
284 *aStatus = nsIGfxInfo::FEATURE_STATUS_UNKNOWN;
285 aSuggestedDriverVersion.SetIsVoid(true);
286 OperatingSystem os = DRIVER_OS_LINUX;
287 if (aOS)
288 *aOS = os;
290 if (mGLMajorVersion == 1) {
291 // We're on OpenGL 1. In most cases that indicates really old hardware.
292 // We better block them, rather than rely on them to fail gracefully, because they don't!
293 // see bug 696636
294 *aStatus = nsIGfxInfo::FEATURE_BLOCKED_DEVICE;
295 return NS_OK;
296 }
298 // Don't evaluate any special cases if we're checking the downloaded blocklist.
299 if (!aDriverInfo.Length()) {
300 // Only check features relevant to Linux.
301 if (aFeature == nsIGfxInfo::FEATURE_OPENGL_LAYERS ||
302 aFeature == nsIGfxInfo::FEATURE_WEBGL_OPENGL ||
303 aFeature == nsIGfxInfo::FEATURE_WEBGL_MSAA) {
305 // Disable OpenGL layers when we don't have texture_from_pixmap because it regresses performance.
306 if (aFeature == nsIGfxInfo::FEATURE_OPENGL_LAYERS && !mHasTextureFromPixmap) {
307 *aStatus = nsIGfxInfo::FEATURE_BLOCKED_DRIVER_VERSION;
308 aSuggestedDriverVersion.AssignLiteral("<Anything with EXT_texture_from_pixmap support>");
309 return NS_OK;
310 }
312 // whitelist the linux test slaves' current configuration.
313 // this is necessary as they're still using the slightly outdated 190.42 driver.
314 // this isn't a huge risk, as at least this is the exact setting in which we do continuous testing,
315 // and this only affects GeForce 9400 cards on linux on this precise driver version, which is very few users.
316 // We do the same thing on Windows XP, see in widget/windows/GfxInfo.cpp
317 if (mIsNVIDIA &&
318 !strcmp(mRenderer.get(), "GeForce 9400/PCI/SSE2") &&
319 !strcmp(mVersion.get(), "3.2.0 NVIDIA 190.42"))
320 {
321 *aStatus = nsIGfxInfo::FEATURE_NO_INFO;
322 return NS_OK;
323 }
325 if (mIsMesa) {
326 if (mIsNouveau && version(mMajorVersion, mMinorVersion) < version(8,0)) {
327 *aStatus = nsIGfxInfo::FEATURE_BLOCKED_DRIVER_VERSION;
328 aSuggestedDriverVersion.AssignLiteral("Mesa 8.0");
329 }
330 else if (version(mMajorVersion, mMinorVersion, mRevisionVersion) < version(7,10,3)) {
331 *aStatus = nsIGfxInfo::FEATURE_BLOCKED_DRIVER_VERSION;
332 aSuggestedDriverVersion.AssignLiteral("Mesa 7.10.3");
333 }
334 else if (mIsOldSwrast) {
335 *aStatus = nsIGfxInfo::FEATURE_BLOCKED_DRIVER_VERSION;
336 }
337 else if (mIsLlvmpipe && version(mMajorVersion, mMinorVersion) < version(9, 1)) {
338 // bug 791905, Mesa bug 57733, fixed in Mesa 9.1 according to
339 // https://bugs.freedesktop.org/show_bug.cgi?id=57733#c3
340 *aStatus = nsIGfxInfo::FEATURE_BLOCKED_DRIVER_VERSION;
341 }
342 else if (aFeature == nsIGfxInfo::FEATURE_WEBGL_MSAA)
343 {
344 if (mIsIntel && version(mMajorVersion, mMinorVersion) < version(8,1))
345 *aStatus = nsIGfxInfo::FEATURE_BLOCKED_DRIVER_VERSION;
346 aSuggestedDriverVersion.AssignLiteral("Mesa 8.1");
347 }
349 } else if (mIsNVIDIA) {
350 if (version(mMajorVersion, mMinorVersion, mRevisionVersion) < version(257,21)) {
351 *aStatus = nsIGfxInfo::FEATURE_BLOCKED_DRIVER_VERSION;
352 aSuggestedDriverVersion.AssignLiteral("NVIDIA 257.21");
353 }
354 } else if (mIsFGLRX) {
355 // FGLRX does not report a driver version number, so we have the OpenGL version instead.
356 // by requiring OpenGL 3, we effectively require recent drivers.
357 if (version(mMajorVersion, mMinorVersion, mRevisionVersion) < version(3, 0)) {
358 *aStatus = nsIGfxInfo::FEATURE_BLOCKED_DRIVER_VERSION;
359 aSuggestedDriverVersion.AssignLiteral("<Something recent>");
360 }
361 // Bug 724640: FGLRX + Linux 2.6.32 is a crashy combo
362 bool unknownOS = mOS.IsEmpty() || mOSRelease.IsEmpty();
363 bool badOS = mOS.Find("Linux", true) != -1 &&
364 mOSRelease.Find("2.6.32") != -1;
365 if (unknownOS || badOS) {
366 *aStatus = nsIGfxInfo::FEATURE_BLOCKED_OS_VERSION;
367 }
368 } else {
369 // like on windows, let's block unknown vendors. Think of virtual machines.
370 // Also, this case is hit whenever the GLXtest probe failed to get driver info or crashed.
371 *aStatus = nsIGfxInfo::FEATURE_BLOCKED_DEVICE;
372 }
373 }
374 }
376 return GfxInfoBase::GetFeatureStatusImpl(aFeature, aStatus, aSuggestedDriverVersion, aDriverInfo, &os);
377 }
380 NS_IMETHODIMP
381 GfxInfo::GetD2DEnabled(bool *aEnabled)
382 {
383 return NS_ERROR_FAILURE;
384 }
386 NS_IMETHODIMP
387 GfxInfo::GetDWriteEnabled(bool *aEnabled)
388 {
389 return NS_ERROR_FAILURE;
390 }
392 /* readonly attribute DOMString DWriteVersion; */
393 NS_IMETHODIMP
394 GfxInfo::GetDWriteVersion(nsAString & aDwriteVersion)
395 {
396 return NS_ERROR_FAILURE;
397 }
399 /* readonly attribute DOMString cleartypeParameters; */
400 NS_IMETHODIMP
401 GfxInfo::GetCleartypeParameters(nsAString & aCleartypeParams)
402 {
403 return NS_ERROR_FAILURE;
404 }
406 /* readonly attribute DOMString adapterDescription; */
407 NS_IMETHODIMP
408 GfxInfo::GetAdapterDescription(nsAString & aAdapterDescription)
409 {
410 GetData();
411 AppendASCIItoUTF16(mAdapterDescription, aAdapterDescription);
412 return NS_OK;
413 }
415 /* readonly attribute DOMString adapterDescription2; */
416 NS_IMETHODIMP
417 GfxInfo::GetAdapterDescription2(nsAString & aAdapterDescription)
418 {
419 return NS_ERROR_FAILURE;
420 }
422 /* readonly attribute DOMString adapterRAM; */
423 NS_IMETHODIMP
424 GfxInfo::GetAdapterRAM(nsAString & aAdapterRAM)
425 {
426 aAdapterRAM.AssignLiteral("");
427 return NS_OK;
428 }
430 /* readonly attribute DOMString adapterRAM2; */
431 NS_IMETHODIMP
432 GfxInfo::GetAdapterRAM2(nsAString & aAdapterRAM)
433 {
434 return NS_ERROR_FAILURE;
435 }
437 /* readonly attribute DOMString adapterDriver; */
438 NS_IMETHODIMP
439 GfxInfo::GetAdapterDriver(nsAString & aAdapterDriver)
440 {
441 aAdapterDriver.AssignLiteral("");
442 return NS_OK;
443 }
445 /* readonly attribute DOMString adapterDriver2; */
446 NS_IMETHODIMP
447 GfxInfo::GetAdapterDriver2(nsAString & aAdapterDriver)
448 {
449 return NS_ERROR_FAILURE;
450 }
452 /* readonly attribute DOMString adapterDriverVersion; */
453 NS_IMETHODIMP
454 GfxInfo::GetAdapterDriverVersion(nsAString & aAdapterDriverVersion)
455 {
456 GetData();
457 CopyASCIItoUTF16(mVersion, aAdapterDriverVersion);
458 return NS_OK;
459 }
461 /* readonly attribute DOMString adapterDriverVersion2; */
462 NS_IMETHODIMP
463 GfxInfo::GetAdapterDriverVersion2(nsAString & aAdapterDriverVersion)
464 {
465 return NS_ERROR_FAILURE;
466 }
468 /* readonly attribute DOMString adapterDriverDate; */
469 NS_IMETHODIMP
470 GfxInfo::GetAdapterDriverDate(nsAString & aAdapterDriverDate)
471 {
472 aAdapterDriverDate.AssignLiteral("");
473 return NS_OK;
474 }
476 /* readonly attribute DOMString adapterDriverDate2; */
477 NS_IMETHODIMP
478 GfxInfo::GetAdapterDriverDate2(nsAString & aAdapterDriverDate)
479 {
480 return NS_ERROR_FAILURE;
481 }
483 /* readonly attribute DOMString adapterVendorID; */
484 NS_IMETHODIMP
485 GfxInfo::GetAdapterVendorID(nsAString & aAdapterVendorID)
486 {
487 GetData();
488 CopyUTF8toUTF16(mVendor, aAdapterVendorID);
489 return NS_OK;
490 }
492 /* readonly attribute DOMString adapterVendorID2; */
493 NS_IMETHODIMP
494 GfxInfo::GetAdapterVendorID2(nsAString & aAdapterVendorID)
495 {
496 return NS_ERROR_FAILURE;
497 }
499 /* readonly attribute DOMString adapterDeviceID; */
500 NS_IMETHODIMP
501 GfxInfo::GetAdapterDeviceID(nsAString & aAdapterDeviceID)
502 {
503 GetData();
504 CopyUTF8toUTF16(mRenderer, aAdapterDeviceID);
505 return NS_OK;
506 }
508 /* readonly attribute DOMString adapterDeviceID2; */
509 NS_IMETHODIMP
510 GfxInfo::GetAdapterDeviceID2(nsAString & aAdapterDeviceID)
511 {
512 return NS_ERROR_FAILURE;
513 }
515 /* readonly attribute boolean isGPU2Active; */
516 NS_IMETHODIMP
517 GfxInfo::GetIsGPU2Active(bool* aIsGPU2Active)
518 {
519 return NS_ERROR_FAILURE;
520 }
522 #ifdef DEBUG
524 // Implement nsIGfxInfoDebug
525 // We don't support spoofing anything on Linux
527 /* void spoofVendorID (in DOMString aVendorID); */
528 NS_IMETHODIMP GfxInfo::SpoofVendorID(const nsAString & aVendorID)
529 {
530 CopyUTF16toUTF8(aVendorID, mVendor);
531 return NS_OK;
532 }
534 /* void spoofDeviceID (in unsigned long aDeviceID); */
535 NS_IMETHODIMP GfxInfo::SpoofDeviceID(const nsAString & aDeviceID)
536 {
537 CopyUTF16toUTF8(aDeviceID, mRenderer);
538 return NS_OK;
539 }
541 /* void spoofDriverVersion (in DOMString aDriverVersion); */
542 NS_IMETHODIMP GfxInfo::SpoofDriverVersion(const nsAString & aDriverVersion)
543 {
544 CopyUTF16toUTF8(aDriverVersion, mVersion);
545 return NS_OK;
546 }
548 /* void spoofOSVersion (in unsigned long aVersion); */
549 NS_IMETHODIMP GfxInfo::SpoofOSVersion(uint32_t aVersion)
550 {
551 // We don't support OS versioning on Linux. There's just "Linux".
552 return NS_OK;
553 }
555 #endif
557 } // end namespace widget
558 } // end namespace mozilla
