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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.");
}
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);
}
} // namespace mozilla
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