gecko-dev/dom/canvas/WebGLExtensionShaderTextureLod.cpp
Jeff Gilbert 8139182468 Bug 1524713 - Allow EXT_float_blend for webgl1. r=lsalzman
Also make each extension track whether it works with webgl 1 and/or 2,
instead of embedding it in the IsExtensionSupported code.

Also, improve mochitest so that it fails if we encounter an unexpected
supported extension.

Differential Revision: https://phabricator.services.mozilla.com/D18614

--HG--
extra : moz-landing-system : lando
2019-02-05 03:34:49 +00:00

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1.2 KiB
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/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "WebGLExtensions.h"
#include "GLContext.h"
#include "mozilla/dom/WebGLRenderingContextBinding.h"
#include "WebGLContext.h"
namespace mozilla {
WebGLExtensionShaderTextureLod::WebGLExtensionShaderTextureLod(
WebGLContext* webgl)
: WebGLExtensionBase(webgl) {
MOZ_ASSERT(IsSupported(webgl), "Don't construct extension if unsupported.");
}
WebGLExtensionShaderTextureLod::~WebGLExtensionShaderTextureLod() {}
bool WebGLExtensionShaderTextureLod::IsSupported(const WebGLContext* webgl) {
if (webgl->IsWebGL2()) return false;
gl::GLContext* gl = webgl->GL();
if (gl->IsGLES() && gl->Version() >= 300) {
// ANGLE's shader translator doesn't yet translate
// WebGL1+EXT_shader_texture_lod to ES3. (Bug 1491221)
return false;
}
return gl->IsSupported(gl::GLFeature::shader_texture_lod);
}
IMPL_WEBGL_EXTENSION_GOOP(WebGLExtensionShaderTextureLod,
EXT_shader_texture_lod)
} // namespace mozilla