Fix webgpu support check failing if globalThis is undefined

Fix WebGPU support not working on iOS, where globalThis is sometimes not
available.

e2e/karma.conf.js

@@ -207,7 +207,7 @@ module.exports = function(config) {
         flags: chromeWebgpuFlags,
       }
     },
-    client: {jasmine: {random: false}, args: args, captureConsole: true},
+    client: {jasmine: {random: false, seed: '15512'}, args: args, captureConsole: true},
     logLevel: 'info'
   });
 };

e2e/yarn.lock

@@ -1101,10 +1101,10 @@
   resolved "https://registry.yarnpkg.com/@types/seedrandom/-/seedrandom-2.4.30.tgz#d2efe425869b84163c2d56e779dddadb9372cbfa"
   integrity sha512-AnxLHewubLVzoF/A4qdxBGHCKifw8cY32iro3DQX9TPcetE95zBeVt3jnsvtvAUf1vwzMfwzp4t/L2yqPlnjkQ==
 
-"@webgpu/types@0.1.30":
-  version "0.1.30"
-  resolved "https://registry.yarnpkg.com/@webgpu/types/-/types-0.1.30.tgz#b6406dc4a1c1e0d469028ceb30ddffbbd2fa706c"
-  integrity sha512-9AXJSmL3MzY8ZL//JjudA//q+2kBRGhLBFpkdGksWIuxrMy81nFrCzj2Am+mbh8WoU6rXmv7cY5E3rdlyru2Qg==
+"@webgpu/types@0.1.38":
+  version "0.1.38"
+  resolved "https://registry.yarnpkg.com/@webgpu/types/-/types-0.1.38.tgz#6fda4b410edc753d3213c648320ebcf319669020"
+  integrity sha512-7LrhVKz2PRh+DD7+S+PVaFd5HxaWQvoMqBbsV9fNJO1pjUs1P8bM2vQVNfk+3URTqbuTI7gkXi0rfsN0IadoBA==
 
 abbrev@1:
   version "1.1.1"

tfjs-backend-webgpu/src/webgpu_util.ts

@@ -155,7 +155,8 @@ export function GPUBytesPerElement(dtype: DataType): number {
 }
 
 export function isWebGPUSupported(): boolean {
-  return !!(globalThis && (globalThis.navigator) && (globalThis.navigator.gpu));
+  return !!(typeof globalThis !== 'undefined' && (globalThis.navigator)
+    && (globalThis.navigator.gpu));
 }
 
 export function assertNotComplex(

tfjs-node/yarn.lock

@@ -227,6 +227,9 @@
     semver "^7.3.5"
     tar "^6.1.11"
 
+"@tensorflow/tfjs-backend-cpu@link:../link-package/node_modules/@tensorflow/link-package/node_modules/@tensorflow/tfjs-backend-cpu":
+  version "0.0.0"
+
 "@tensorflow/tfjs-backend-cpu@link:../link-package/node_modules/@tensorflow/tfjs-backend-cpu":
   version "0.0.0"
   uid ""
@@ -268,11 +271,24 @@
   resolved "https://registry.yarnpkg.com/@types/jasmine/-/jasmine-4.0.3.tgz#097ce710d70eb7f3662e96c1f75824dd22c27d5c"
   integrity sha512-Opp1LvvEuZdk8fSSvchK2mZwhVrsNT0JgJE9Di6MjnaIpmEXM8TLCPPrVtNTYh8+5MPdY8j9bAHMu2SSfwpZJg==
 
+"@types/long@^4.0.1":
+  version "4.0.2"
+  resolved "https://registry.yarnpkg.com/@types/long/-/long-4.0.2.tgz#b74129719fc8d11c01868010082d483b7545591a"
+  integrity sha512-MqTGEo5bj5t157U6fA/BiDynNkn0YknVdh48CMPkTSpFTVmvao5UQmm7uEF6xBEo7qIMAlY/JSleYaE6VOdpaA==
+
 "@types/minimatch@*":
   version "3.0.4"
   resolved "https://registry.yarnpkg.com/@types/minimatch/-/minimatch-3.0.4.tgz#f0ec25dbf2f0e4b18647313ac031134ca5b24b21"
   integrity sha512-1z8k4wzFnNjVK/tlxvrWuK5WMt6mydWWP7+zvH5eFep4oj+UkrfiJTRtjCeBXNpwaA/FYqqtb4/QS4ianFpIRA==
 
+"@types/node-fetch@^2.1.2":
+  version "2.6.9"
+  resolved "https://registry.yarnpkg.com/@types/node-fetch/-/node-fetch-2.6.9.tgz#15f529d247f1ede1824f7e7acdaa192d5f28071e"
+  integrity sha512-bQVlnMLFJ2d35DkPNjEPmd9ueO/rh5EiaZt2bhqiSarPjZIuIV6bPQVqcrEyvNo+AfTrRGVazle1tl597w3gfA==
+  dependencies:
+    "@types/node" "*"
+    form-data "^4.0.0"
+
 "@types/node@*":
   version "14.14.36"
   resolved "https://registry.yarnpkg.com/@types/node/-/node-14.14.36.tgz#5637905dbb15c30a33a3c65b9ef7c20e3c85ebad"
@@ -283,6 +299,16 @@
   resolved "https://registry.yarnpkg.com/@types/node/-/node-10.17.55.tgz#a147f282edec679b894d4694edb5abeb595fecbd"
   integrity sha512-koZJ89uLZufDvToeWO5BrC4CR4OUfHnUz2qoPs/daQH6qq3IN62QFxCTZ+bKaCE0xaoCAJYE4AXre8AbghCrhg==
 
+"@types/offscreencanvas@~2019.3.0":
+  version "2019.3.0"
+  resolved "https://registry.yarnpkg.com/@types/offscreencanvas/-/offscreencanvas-2019.3.0.tgz#3336428ec7e9180cf4566dfea5da04eb586a6553"
+  integrity sha512-esIJx9bQg+QYF0ra8GnvfianIY8qWB0GBx54PK5Eps6m+xTj86KLavHv6qDhzKcu5UUOgNfJ2pWaIIV7TRUd9Q==
+
+"@types/offscreencanvas@~2019.7.0":
+  version "2019.7.3"
+  resolved "https://registry.yarnpkg.com/@types/offscreencanvas/-/offscreencanvas-2019.7.3.tgz#90267db13f64d6e9ccb5ae3eac92786a7c77a516"
+  integrity sha512-ieXiYmgSRXUDeOntE1InxjWyvEelZGP63M+cGuquuRLuIKKT1osnkXjxev9B7d1nXSug5vpunx+gNlbVxMlC9A==
+
 "@types/progress@^2.0.1":
   version "2.0.3"
   resolved "https://registry.yarnpkg.com/@types/progress/-/progress-2.0.3.tgz#7ccbd9c6d4d601319126c469e73b5bb90dfc8ccc"
@@ -298,6 +324,11 @@
     "@types/glob" "*"
     "@types/node" "*"
 
+"@types/seedrandom@^2.4.28":
+  version "2.4.34"
+  resolved "https://registry.yarnpkg.com/@types/seedrandom/-/seedrandom-2.4.34.tgz#c725cd0fc0442e2d3d0e5913af005686ffb7eb99"
+  integrity sha512-ytDiArvrn/3Xk6/vtylys5tlY6eo7Ane0hvcx++TKo6RxQXuVfW0AF/oeWqAj9dN29SyhtawuXstgmPlwNcv/A==
+
 "@types/yargs-parser@*":
   version "20.2.0"
   resolved "https://registry.yarnpkg.com/@types/yargs-parser/-/yargs-parser-20.2.0.tgz#dd3e6699ba3237f0348cd085e4698780204842f9"
@@ -310,6 +341,11 @@
   dependencies:
     "@types/yargs-parser" "*"
 
+"@webgpu/types@0.1.38":
+  version "0.1.38"
+  resolved "https://registry.yarnpkg.com/@webgpu/types/-/types-0.1.38.tgz#6fda4b410edc753d3213c648320ebcf319669020"
+  integrity sha512-7LrhVKz2PRh+DD7+S+PVaFd5HxaWQvoMqBbsV9fNJO1pjUs1P8bM2vQVNfk+3URTqbuTI7gkXi0rfsN0IadoBA==
+
 abbrev@1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/abbrev/-/abbrev-1.1.1.tgz#f8f2c887ad10bf67f634f005b6987fed3179aac8"
@@ -403,6 +439,11 @@ async@^3.2.3:
   resolved "https://registry.yarnpkg.com/async/-/async-3.2.3.tgz#ac53dafd3f4720ee9e8a160628f18ea91df196c9"
   integrity sha512-spZRyzKL5l5BZQrr/6m/SqFdBN0q3OCI0f9rjfBzCMBIP4p75P620rR3gTmaksNOhmzgdxcaxdNfMy6anrbM0g==
 
+asynckit@^0.4.0:
+  version "0.4.0"
+  resolved "https://registry.yarnpkg.com/asynckit/-/asynckit-0.4.0.tgz#c79ed97f7f34cb8f2ba1bc9790bcc366474b4b79"
+  integrity sha512-Oei9OH4tRh0YqU3GxhX79dM/mwVgvbZJaSNaRk+bshkj0S5cfHcgYakreBjrHwatXKbz+IoIdYLxrKim2MjW0Q==
+
 balanced-match@^1.0.0:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/balanced-match/-/balanced-match-1.0.2.tgz#e83e3a7e3f300b34cb9d87f615fa0cbf357690ee"
@@ -545,6 +586,13 @@ color-support@^1.1.2:
   resolved "https://registry.yarnpkg.com/color-support/-/color-support-1.1.3.tgz#93834379a1cc9a0c61f82f52f0d04322251bd5a2"
   integrity sha512-qiBjkpbMLO/HL68y+lh4q0/O1MZFj2RX6X/KmMa3+gJD3z+WwI1ZzDHysvqHGS3mP6mznPckpXmw1nI9cJjyRg==
 
+combined-stream@^1.0.8:
+  version "1.0.8"
+  resolved "https://registry.yarnpkg.com/combined-stream/-/combined-stream-1.0.8.tgz#c3d45a8b34fd730631a110a8a2520682b31d5a7f"
+  integrity sha512-FQN4MRfuJeHf7cBbBMJFXhKSDq+2kAArBlmRBvcvFE5BB1HZKXtSFASDhdlz9zOYwxh8lDdnvmMOe/+5cdoEdg==
+  dependencies:
+    delayed-stream "~1.0.0"
+
 commander@^2.12.1:
   version "2.20.3"
   resolved "https://registry.yarnpkg.com/commander/-/commander-2.20.3.tgz#fd485e84c03eb4881c20722ba48035e8531aeb33"
@@ -612,6 +660,11 @@ default-require-extensions@^3.0.0:
   dependencies:
     strip-bom "^4.0.0"
 
+delayed-stream@~1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/delayed-stream/-/delayed-stream-1.0.0.tgz#df3ae199acadfb7d440aaae0b29e2272b24ec619"
+  integrity sha512-ZySD7Nf91aLB0RxL4KGrKHBXl7Eds1DAmEdcoVawXnLD7SDhpNgtuII2aAkg7a7QS41jxPSZ17p4VdGnMHk3MQ==
+
 delegates@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/delegates/-/delegates-1.0.0.tgz#84c6e159b81904fdca59a0ef44cd870d31250f9a"
@@ -699,6 +752,15 @@ foreground-child@^2.0.0:
     cross-spawn "^7.0.0"
     signal-exit "^3.0.2"
 
+form-data@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/form-data/-/form-data-4.0.0.tgz#93919daeaf361ee529584b9b31664dc12c9fa452"
+  integrity sha512-ETEklSGi5t0QMZuiXoA/Q6vcnxcLQP5vdugSpuAyi6SVGi2clPPp+xgEhuMaHC+zGgn31Kd235W35f7Hykkaww==
+  dependencies:
+    asynckit "^0.4.0"
+    combined-stream "^1.0.8"
+    mime-types "^2.1.12"
+
 fromentries@^1.2.0:
   version "1.3.2"
   resolved "https://registry.yarnpkg.com/fromentries/-/fromentries-1.3.2.tgz#e4bca6808816bf8f93b52750f1127f5a6fd86e3a"
@@ -1038,6 +1100,11 @@ lodash@^4.17.19:
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.21.tgz#679591c564c3bffaae8454cf0b3df370c3d6911c"
   integrity sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg==
 
+long@4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/long/-/long-4.0.0.tgz#9a7b71cfb7d361a194ea555241c92f7468d5bf28"
+  integrity sha512-XsP+KhQif4bjX1kbuSiySJFNAehNxgLb6hPRGJ9QsUr8ajHkuXGdrHmFUTUUXhDwVX2R5bY4JNZEwbUiMhV+MA==
+
 lru-cache@^6.0.0:
   version "6.0.0"
   resolved "https://registry.yarnpkg.com/lru-cache/-/lru-cache-6.0.0.tgz#6d6fe6570ebd96aaf90fcad1dafa3b2566db3a94"
@@ -1057,6 +1124,18 @@ make-error@^1.1.1:
   resolved "https://registry.yarnpkg.com/make-error/-/make-error-1.3.6.tgz#2eb2e37ea9b67c4891f684a1394799af484cf7a2"
   integrity sha512-s8UhlNe7vPKomQhC1qFelMokr/Sc3AgNbso3n74mVPA5LTZwkB9NlXf4XPamLxJE8h0gh73rM94xvwRT2CVInw==
 
+mime-db@1.52.0:
+  version "1.52.0"
+  resolved "https://registry.yarnpkg.com/mime-db/-/mime-db-1.52.0.tgz#bbabcdc02859f4987301c856e3387ce5ec43bf70"
+  integrity sha512-sPU4uV7dYlvtWJxwwxHD0PuihVNiE7TyAbQ5SWxDCB9mUYvOgroQOwYQQOKPJ8CIbE+1ETVlOoK1UC2nU3gYvg==
+
+mime-types@^2.1.12:
+  version "2.1.35"
+  resolved "https://registry.yarnpkg.com/mime-types/-/mime-types-2.1.35.tgz#381a871b62a734450660ae3deee44813f70d959a"
+  integrity sha512-ZDY+bPm5zTTF+YpCrAU9nK0UgICYPT0QtT1NZWFv4s++TNkcgVaT0g6+4R2uI4MjQjzysHB1zxuWL50hzaeXiw==
+  dependencies:
+    mime-db "1.52.0"
+
 minimatch@^3.0.4:
   version "3.1.2"
   resolved "https://registry.yarnpkg.com/minimatch/-/minimatch-3.1.2.tgz#19cd194bfd3e428f049a70817c038d89ab4be35b"
@@ -1383,6 +1462,11 @@ safe-buffer@~5.1.1:
   resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.1.2.tgz#991ec69d296e0313747d59bdfd2b745c35f8828d"
   integrity sha512-Gd2UZBJDkXlY7GbJxfsE8/nvKkUEU1G38c1siN6QP6a9PT9MmHB8GnpscSmMJSoF8LOIrt8ud/wPtojys4G6+g==
 
+seedrandom@^3.0.5:
+  version "3.0.5"
+  resolved "https://registry.yarnpkg.com/seedrandom/-/seedrandom-3.0.5.tgz#54edc85c95222525b0c7a6f6b3543d8e0b3aa0a7"
+  integrity sha512-8OwmbklUNzwezjGInmZ+2clQmExQPvomqjL7LFqOYqtmuxRgQYqOD3mHaU+MvZn5FLUeVxVfQjwLZW/n/JFuqg==
+
 semver@^5.3.0:
   version "5.7.1"
   resolved "https://registry.yarnpkg.com/semver/-/semver-5.7.1.tgz#a954f931aeba508d307bbf069eff0c01c96116f7"
@@ -1475,7 +1559,7 @@ string-width@^4.1.0, string-width@^4.2.0:
     is-fullwidth-code-point "^3.0.0"
     strip-ansi "^6.0.0"
 
-string_decoder@^1.1.1:
+string_decoder@^1.1.1, string_decoder@^1.3.0:
   version "1.3.0"
   resolved "https://registry.yarnpkg.com/string_decoder/-/string_decoder-1.3.0.tgz#42f114594a46cf1a8e30b0a84f56c78c3edac21e"
   integrity sha512-hkRX8U1WjJFd8LsDJ2yQ/wWWxaopEsABU1XfkM8A+j0+85JAGppt16cr1Whg6KIbb4okU6Mql6BOj+uup/wKeA==

tfjs/yarn.lock

@@ -2034,10 +2034,10 @@
   dependencies:
     "@types/yargs-parser" "*"
 
-"@webgpu/types@0.1.30":
-  version "0.1.30"
-  resolved "https://registry.yarnpkg.com/@webgpu/types/-/types-0.1.30.tgz#b6406dc4a1c1e0d469028ceb30ddffbbd2fa706c"
-  integrity sha512-9AXJSmL3MzY8ZL//JjudA//q+2kBRGhLBFpkdGksWIuxrMy81nFrCzj2Am+mbh8WoU6rXmv7cY5E3rdlyru2Qg==
+"@webgpu/types@0.1.38":
+  version "0.1.38"
+  resolved "https://registry.yarnpkg.com/@webgpu/types/-/types-0.1.38.tgz#6fda4b410edc753d3213c648320ebcf319669020"
+  integrity sha512-7LrhVKz2PRh+DD7+S+PVaFd5HxaWQvoMqBbsV9fNJO1pjUs1P8bM2vQVNfk+3URTqbuTI7gkXi0rfsN0IadoBA==
 
 accepts@~1.3.4:
   version "1.3.8"