root/Source/core/html/canvas/WebGLContextAttributes.cpp

DEFINITIONS

1. create
2. m_failIfMajorPerformanceCaveat
3. m_failIfMajorPerformanceCaveat
4. clone
5. alpha
6. setAlpha
7. depth
8. setDepth
9. stencil
10. setStencil
11. antialias
12. setAntialias
13. premultipliedAlpha
14. setPremultipliedAlpha
15. preserveDrawingBuffer
16. setPreserveDrawingBuffer
17. failIfMajorPerformanceCaveat
18. setFailIfMajorPerformanceCaveat
19. attributes

/*
 * Copyright (c) 2010, Google Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *     * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above
 * copyright notice, this list of conditions and the following disclaimer
 * in the documentation and/or other materials provided with the
 * distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include "config.h"

#include "core/html/canvas/WebGLContextAttributes.h"

#include "core/frame/Settings.h"

namespace WebCore {

PassRefPtr<WebGLContextAttributes> WebGLContextAttributes::create()
{
    return adoptRef(new WebGLContextAttributes());
}

WebGLContextAttributes::WebGLContextAttributes()
    : CanvasContextAttributes()
    , m_alpha(true)
    , m_depth(true)
    , m_stencil(false)
    , m_antialias(true)
    , m_premultipliedAlpha(true)
    , m_preserveDrawingBuffer(false)
    , m_failIfMajorPerformanceCaveat(false)
{
    ScriptWrappable::init(this);
}

WebGLContextAttributes::WebGLContextAttributes(const WebGLContextAttributes& attrs)
    : CanvasContextAttributes()
    , m_alpha(attrs.m_alpha)
    , m_depth(attrs.m_depth)
    , m_stencil(attrs.m_stencil)
    , m_antialias(attrs.m_antialias)
    , m_premultipliedAlpha(attrs.m_premultipliedAlpha)
    , m_preserveDrawingBuffer(attrs.m_preserveDrawingBuffer)
    , m_failIfMajorPerformanceCaveat(attrs.m_failIfMajorPerformanceCaveat)
{
    ScriptWrappable::init(this);
}

WebGLContextAttributes::~WebGLContextAttributes()
{
}

PassRefPtr<WebGLContextAttributes> WebGLContextAttributes::clone() const
{
    return adoptRef(new WebGLContextAttributes(*this));
}

bool WebGLContextAttributes::alpha() const
{
    return m_alpha;
}

void WebGLContextAttributes::setAlpha(bool alpha)
{
    m_alpha = alpha;
}

bool WebGLContextAttributes::depth() const
{
    return m_depth;
}

void WebGLContextAttributes::setDepth(bool depth)
{
    m_depth = depth;
}

bool WebGLContextAttributes::stencil() const
{
    return m_stencil;
}

void WebGLContextAttributes::setStencil(bool stencil)
{
    m_stencil = stencil;
}

bool WebGLContextAttributes::antialias() const
{
    return m_antialias;
}

void WebGLContextAttributes::setAntialias(bool antialias)
{
    m_antialias = antialias;
}

bool WebGLContextAttributes::premultipliedAlpha() const
{
    return m_premultipliedAlpha;
}

void WebGLContextAttributes::setPremultipliedAlpha(bool premultipliedAlpha)
{
    m_premultipliedAlpha = premultipliedAlpha;
}

bool WebGLContextAttributes::preserveDrawingBuffer() const
{
    return m_preserveDrawingBuffer;
}

void WebGLContextAttributes::setPreserveDrawingBuffer(bool preserveDrawingBuffer)
{
    m_preserveDrawingBuffer = preserveDrawingBuffer;
}

bool WebGLContextAttributes::failIfMajorPerformanceCaveat() const
{
    return m_failIfMajorPerformanceCaveat;
}

void WebGLContextAttributes::setFailIfMajorPerformanceCaveat(bool failIfMajorPerformanceCaveat)
{
    m_failIfMajorPerformanceCaveat = failIfMajorPerformanceCaveat;
}

blink::WebGraphicsContext3D::Attributes WebGLContextAttributes::attributes(
    const blink::WebString& topDocumentURL, Settings* settings) const
{
    blink::WebGraphicsContext3D::Attributes attrs;

    attrs.alpha = m_alpha;
    attrs.depth = m_depth;
    attrs.stencil = m_stencil;
    attrs.antialias = m_antialias;
    if (m_antialias) {
        if (settings && !settings->openGLMultisamplingEnabled())
            attrs.antialias = false;
    }
    attrs.premultipliedAlpha = m_premultipliedAlpha;
    attrs.failIfMajorPerformanceCaveat = m_failIfMajorPerformanceCaveat;

    attrs.noExtensions = true;
    attrs.shareResources = false;
    attrs.preferDiscreteGPU = true;

    attrs.topDocumentURL = topDocumentURL;

    return attrs;
}

} // namespace WebCore