Bug 834814 - allow for webgl tests to support mesa llvm driver. r=bjacob

--HG--
rename : content/canvas/test/webgl/failing_tests_linux.txt => content/canvas/test/webgl/failing_tests_linux_nvidia.txt

content/canvas/test/webgl/Makefile.in

@@ -14,6 +14,9 @@ MOCHITEST_FILES = \
   test_webgl_conformance_test_suite.html \
   00_test_list.txt \
   failing_tests_linux.txt \
+  failing_tests_linux_mesa.txt \
+  skipped_tests_linux_mesa.txt \
+  failing_tests_linux_nvidia.txt \
   failing_tests_windows.txt \
   failing_tests_mac.txt \
   failing_tests_mac_mtnlion.txt \

content/canvas/test/webgl/failing_tests_linux_mesa.txt

@@ -0,0 +1,5 @@
+conformance/textures/texture-mips.html
+conformance/textures/texture-size-cube-maps.html
+conformance/extensions/oes-texture-float.html
+conformance/glsl/functions/glsl-function-sin.html
+

content/canvas/test/webgl/failing_tests_linux_nvidia.txt

@@ -0,0 +1,5 @@
+conformance/misc/uninitialized-test.html
+conformance/programs/gl-get-active-attribute.html
+conformance/textures/texture-mips.html
+conformance/uniforms/gl-uniform-bool.html
+conformance/renderbuffers/framebuffer-object-attachment.html

content/canvas/test/webgl/skipped_tests_linux_mesa.txt

@@ -0,0 +1,2 @@
+conformance/misc/type-conversion-test.html
+

content/canvas/test/webgl/test_webgl_conformance_test_suite.html

@@ -44,17 +44,58 @@ var OPTIONS = {
 
 SimpleTest.waitForExplicitFinish();
 
+function detectDriverType() {
+  const Cc = SpecialPowers.wrap(Components).classes;
+  const Ci = SpecialPowers.wrap(Components).interfaces;
+  var doc = Cc["@mozilla.org/xmlextras/domparser;1"].createInstance(Ci.nsIDOMParser).parseFromString("<html/>", "text/html");
+
+  var canvas = doc.createElement("canvas");
+  canvas.width = 1;
+  canvas.height = 1;
+
+  var type = "";
+  var gl;
+  try {
+    gl = canvas.getContext("experimental-webgl");
+  } catch(e) {}
+
+  if (gl) {
+    var ext = gl.getExtension("WEBGL_debug_renderer_info");
+    // this extension is unconditionally available to chrome. No need to check.
+    var webglRenderer = gl.getParameter(ext.UNMASKED_RENDERER_WEBGL);
+    var webglVendor = gl.getParameter(ext.UNMASKED_VENDOR_WEBGL);
+    if (webglRenderer.contains('llvmpipe')) {
+      type = "mesa";
+    } else if (webglVendor.contains('NVIDIA')) {
+      type = "nvidia";
+    }
+  }
+  return type;
+}
+
 function start() {
 
   var kIsWindows = false;
-  var kIsLinux = false;
   var kIsAndroid = false;
+  var kIsLinux = false;
+  var kIsLinuxNVidia = false;
+  var kIsLinuxMesa = false;
+
   if (navigator.platform.indexOf("Win") == 0)
     kIsWindows = true;
   else if (navigator.appVersion.indexOf("Android") != -1)
     kIsAndroid = true;
-  else if (navigator.platform.indexOf("Linux") == 0) // must be checked after android, as android also has a 'Linux' platform string
-    kIsLinux = true;
+  else if (navigator.platform.indexOf("Linux") == 0)  {
+    // must be checked after android, as android also has a 'Linux' platform string
+    var type = detectDriverType();
+    if (type == "mesa") {
+      kIsLinuxMesa = true;
+    } else if (type == "nvidia") {
+      kIsLinuxNVidia = true;
+    } else {
+      kIsLinux = true;
+    }
+  }
 
   // Set kMacVersion to the OS X version for Mac, and 0 otherwise.
   var osxmatch = /Mac OS X (\d+.\d+)/.exec(navigator.userAgent);
@@ -418,6 +459,10 @@ function start() {
     failingTestsFilename = 'failing_tests_windows.txt';
   else if (kIsLinux)
     failingTestsFilename = 'failing_tests_linux.txt';
+  else if (kIsLinuxMesa)
+    failingTestsFilename = 'failing_tests_linux_mesa.txt';
+  else if (kIsLinuxNVidia)
+    failingTestsFilename = 'failing_tests_linux_nvidia.txt';
   else if (kMacVersion == 10.8)
     failingTestsFilename = 'failing_tests_mac_mtnlion.txt';
   else if (kMacVersion)
@@ -446,6 +491,12 @@ function start() {
                       .split('\n');
   }
 
+  if (kIsLinuxMesa) {
+    var testsToSkip = loadTextFileSynchronous('skipped_tests_linux_mesa.txt')
+                      .replace(/\r/g, '') // convert to unix line breaks
+                      .split('\n');
+  }
+
   runTestSuite();
 }