зеркало из https://github.com/mozilla/gecko-dev.git
54 строки
1.6 KiB
C++
54 строки
1.6 KiB
C++
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "WebGLExtensions.h"
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#include "gfxPrefs.h"
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#include "GLContext.h"
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#include "mozilla/dom/WebGLRenderingContextBinding.h"
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#include "WebGLContext.h"
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namespace mozilla {
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WebGLExtensionBase::WebGLExtensionBase(WebGLContext* context)
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: WebGLContextBoundObject(context), mIsLost(false) {}
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WebGLExtensionBase::~WebGLExtensionBase() {}
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void WebGLExtensionBase::MarkLost() {
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mIsLost = true;
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OnMarkLost();
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}
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NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_0(WebGLExtensionBase)
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NS_IMPL_CYCLE_COLLECTION_ROOT_NATIVE(WebGLExtensionBase, AddRef)
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NS_IMPL_CYCLE_COLLECTION_UNROOT_NATIVE(WebGLExtensionBase, Release)
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// -
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WebGLExtensionFloatBlend::WebGLExtensionFloatBlend(WebGLContext* const webgl)
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: WebGLExtensionBase(webgl) {
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MOZ_ASSERT(IsSupported(webgl), "Don't construct extension if unsupported.");
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}
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WebGLExtensionFloatBlend::~WebGLExtensionFloatBlend() = default;
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bool WebGLExtensionFloatBlend::IsSupported(const WebGLContext* const webgl) {
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if (!gfxPrefs::WebGLDraftExtensionsEnabled()) return false;
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if (!WebGLExtensionColorBufferFloat::IsSupported(webgl) &&
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!WebGLExtensionEXTColorBufferFloat::IsSupported(webgl))
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return false;
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const auto& gl = webgl->gl;
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return !gl->IsGLES() || gl->IsANGLE() ||
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gl->IsExtensionSupported(gl::GLContext::EXT_float_blend);
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}
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IMPL_WEBGL_EXTENSION_GOOP(WebGLExtensionFloatBlend, EXT_float_blend)
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} // namespace mozilla
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