When the GL version is below 3.0, use GL_MAX_VARYING_FLOATS.

It should be equivalent to GL_MAX_VARYING_COMPONENTS for ES2. BUG=angleproject:1038 Change-Id: Ic2fe6c27a0ebd6259d70f8d28edb7d4bdd5d0c35 Reviewed-on: https://chromium-review.googlesource.com/286526Reviewed-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Corentin Wallez <cwallez@chromium.org> Tested-by: Geoff Lang <geofflang@chromium.org>

When the GL version is below 3.0, use GL_MAX_VARYING_FLOATS.
ecc9688d · Geoff Lang · 8b0f0b3b · ecc9688d
Commit ecc9688d authored Jul 20, 2015 by Geoff Lang
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renderergl_utils.cpp src/libANGLE/renderer/gl/renderergl_utils.cpp +6 -1

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--- a/src/libANGLE/renderer/gl/renderergl_utils.cpp
+++ b/src/libANGLE/renderer/gl/renderergl_utils.cpp
@@ -416,10 +416,15 @@ void GenerateCaps(const FunctionsGL *functions, gl::Caps *caps, gl::TextureCapsM
    {
        caps->maxVaryingComponents = QuerySingleGLInt(functions, GL_MAX_VARYING_COMPONENTS);
    }
-    else
+    else if (functions->isAtLeastGL(gl::Version(2, 0)))
    {
+        caps->maxVaryingComponents = QuerySingleGLInt(functions, GL_MAX_VARYING_FLOATS);
        LimitVersion(maxSupportedESVersion, gl::Version(2, 0));
    }
+    else
+    {
+        LimitVersion(maxSupportedESVersion, gl::Version(0, 0));
+    }

    if (functions->isAtLeastGL(gl::Version(4, 1)) || functions->hasGLExtension("GL_ARB_ES2_compatibility") ||
        functions->isAtLeastGLES(gl::Version(2, 0)))