// Copyright 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.

#include "base/gfx/skia_utils_mac.h"

#include "base/logging.h"
#include "SkRect.h"

namespace gfx {

SkIRect CGRectToSkIRect(const CGRect& rect) {
  SkIRect sk_rect = {
    SkScalarRound(rect.origin.x),
    SkScalarRound(rect.origin.x),
    SkScalarRound(rect.origin.x + rect.size.width),
    SkScalarRound(rect.origin.y + rect.size.height)
  };
  return sk_rect;
}

SkRect CGRectToSkRect(const CGRect& rect) {
  SkRect sk_rect = {
    rect.origin.x,
    rect.origin.x,
    rect.origin.x + rect.size.width,
    rect.origin.y + rect.size.height,
  };
  return sk_rect;
}
  
CGRect SkIRectToCGRect(const SkIRect& rect) {
  CGRect cg_rect = {
    { rect.fLeft, rect.fTop },
    { rect.fRight - rect.fLeft, rect.fBottom - rect.fTop }
  };
  return cg_rect;
} 

CGRect SkRectToCGRect(const SkRect& rect) {
  CGRect cg_rect = {
    { rect.fLeft, rect.fTop },
    { rect.fRight - rect.fLeft, rect.fBottom - rect.fTop }
  };
  return cg_rect;
}

// Converts CGColorRef to the ARGB layout Skia expects.
SkColor CGColorRefToSkColor(CGColorRef color) {
  DCHECK(CGColorGetNumberOfComponents(color) == 4);
  const CGFloat *components = CGColorGetComponents(color);
  return SkColorSetARGB(SkScalarRound(255.0 * components[3]), // alpha
                        SkScalarRound(255.0 * components[0]), // red
                        SkScalarRound(255.0 * components[1]), // green
                        SkScalarRound(255.0 * components[2])); // blue
}

// Converts ARGB to CGColorRef.
CGColorRef SkColorToCGColorRef(SkColor color) {
  return CGColorCreateGenericRGB(SkColorGetR(color) / 255.0,
                                 SkColorGetG(color) / 255.0,
                                 SkColorGetB(color) / 255.0,
                                 SkColorGetA(color) / 255.0);
}

}  // namespace gfx