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/*
* Copyright (c) 2006,2007,2008, 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.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* 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.
*/
// All of the functions in this file should move to new homes and this file should be deleted.
#ifndef SkiaUtils_h
#define SkiaUtils_h
#include "SkMatrix.h"
#include "SkPaint.h"
#include "SkPath.h"
#include "SkXfermode.h"
#include "platform/PlatformExport.h"
#include "platform/geometry/FloatRect.h"
#include "platform/graphics/Color.h"
#include "platform/graphics/GraphicsTypes.h"
#include "platform/transforms/AffineTransform.h"
#include "wtf/MathExtras.h"
namespace blink {
class GraphicsContext;
SkXfermode::Mode PLATFORM_EXPORT WebCoreCompositeToSkiaComposite(CompositeOperator, WebBlendMode = WebBlendModeNormal);
inline SkPaint::FilterLevel WebCoreInterpolationQualityToSkFilterLevel(InterpolationQuality quality)
{
// FIXME: this reflects existing client mappings, but should probably
// be expanded to map higher level interpolations more accurately.
return quality != InterpolationNone ? SkPaint::kLow_FilterLevel : SkPaint::kNone_FilterLevel;
}
// Skia has problems when passed infinite, etc floats, filter them to 0.
inline SkScalar WebCoreFloatToSkScalar(float f)
{
return SkFloatToScalar(std::isfinite(f) ? f : 0);
}
inline SkScalar WebCoreDoubleToSkScalar(double d)
{
return SkDoubleToScalar(std::isfinite(d) ? d : 0);
}
inline SkRect WebCoreFloatRectToSKRect(const FloatRect& rect)
{
return SkRect::MakeLTRB(SkFloatToScalar(rect.x()), SkFloatToScalar(rect.y()),
SkFloatToScalar(rect.maxX()), SkFloatToScalar(rect.maxY()));
}
inline bool WebCoreFloatNearlyEqual(float a, float b)
{
return SkScalarNearlyEqual(WebCoreFloatToSkScalar(a), WebCoreFloatToSkScalar(b));
}
inline SkPath::FillType WebCoreWindRuleToSkFillType(WindRule rule)
{
return static_cast<SkPath::FillType>(rule);
}
// Determine if a given WebKit point is contained in a path
bool PLATFORM_EXPORT SkPathContainsPoint(const SkPath&, const FloatPoint&, SkPath::FillType);
SkMatrix PLATFORM_EXPORT affineTransformToSkMatrix(const AffineTransform&);
bool nearlyIntegral(float value);
InterpolationQuality limitInterpolationQuality(const GraphicsContext*, InterpolationQuality resampling);
InterpolationQuality computeInterpolationQuality(
const SkMatrix&,
float srcWidth,
float srcHeight,
float destWidth,
float destHeight,
bool isDataComplete = true);
bool shouldDrawAntiAliased(const GraphicsContext*, const SkRect& destRect);
} // namespace blink
#endif // SkiaUtils_h
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