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Auto merge of #20669 - simartin:issue_20623, r=jdm

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Issue #20623: Check the input to WebGLRenderingContext's clear().

Validate the input to this function as per specifications.

---
- [X] `./mach build -d` does not report any errors
- [X] `./mach build-geckolib` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [X] These changes fix #20623
- [X] There are tests for these changes

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bors-servo 2018-05-20 11:54:56 -04:00 • committed by GitHub
commit 0b5720547e
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3
components/script/dom/webglrenderingcontext.rs
View file

@ -1878,6 +1878,9 @@ impl WebGLRenderingContextMethods for WebGLRenderingContext {
if !self.validate_framebuffer_complete() {
return;
}
if mask & !(constants::DEPTH_BUFFER_BIT | constants::STENCIL_BUFFER_BIT | constants::COLOR_BUFFER_BIT) != 0 {
return self.webgl_error(InvalidValue);
}
self.send_command(WebGLCommand::Clear(mask));
self.mark_as_dirty();

10
tests/wpt/mozilla/meta/MANIFEST.json
View file

@ -39293,6 +39293,12 @@
{}
]
],
"mozilla/webgl/clear.html": [
[
"/_mozilla/mozilla/webgl/clear.html",
{}
]
],
"mozilla/webgl/context_creation_error.html": [
[
"/_mozilla/mozilla/webgl/context_creation_error.html",
@ -70956,6 +70962,10 @@
"c333c7b99156d63fcd3ad28014c7915a12cf8169",
"testharness"
],
"mozilla/webgl/clear.html": [
"14cc534be5da96b0cc128d5c44f662b2fdfb294c",
"testharness"
],
"mozilla/webgl/clearcolor.html": [
"942ee78ec987d17f63253ed97d6de958dbe8730d",
"reftest"

23
tests/wpt/mozilla/tests/mozilla/webgl/clear.html Normal file
View file

@ -0,0 +1,23 @@
<!doctype html>
<meta charset="utf-8">
<title>WebGLRenderingContext.clear testing (issue #20623)</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script>
test(function() {
var gl = document.createElement("canvas").getContext("webgl");
// Valid values
gl.clear(gl.DEPTH_BUFFER_BIT);
assert_equals(gl.NO_ERROR, gl.getError());
gl.clear(gl.STENCIL_BUFFER_BIT);
assert_equals(gl.NO_ERROR, gl.getError());
gl.clear(gl.COLOR_BUFFER_BIT);
assert_equals(gl.NO_ERROR, gl.getError());
gl.clear(gl.DEPTH_BUFFER_BIT | gl.STENCIL_BUFFER_BIT | gl.COLOR_BUFFER_BIT);
assert_equals(gl.NO_ERROR, gl.getError());
// Invalid value
gl.clear(42);
assert_equals(gl.INVALID_VALUE, gl.getError());
});
</script>