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      1 /*
      2  * Copyright 2006, The Android Open Source Project
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions
      6  * are met:
      7  *  * Redistributions of source code must retain the above copyright
      8  *    notice, this list of conditions and the following disclaimer.
      9  *  * Redistributions in binary form must reproduce the above copyright
     10  *    notice, this list of conditions and the following disclaimer in the
     11  *    documentation and/or other materials provided with the distribution.
     12  *
     13  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
     14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
     17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
     18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
     21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     24  */
     25 
     26 #include "config.h"
     27 #include "Pattern.h"
     28 
     29 #include "android_graphics.h"
     30 #include "GraphicsContext.h"
     31 #include "SkBitmapRef.h"
     32 #include "SkCanvas.h"
     33 #include "SkColorShader.h"
     34 #include "SkShader.h"
     35 #include "SkPaint.h"
     36 
     37 namespace WebCore {
     38 
     39 static SkShader::TileMode toTileMode(bool doRepeat) {
     40     return doRepeat ? SkShader::kRepeat_TileMode : SkShader::kClamp_TileMode;
     41 }
     42 
     43 void Pattern::platformDestroy()
     44 {
     45     m_pattern->safeUnref();
     46     m_pattern = 0;
     47 }
     48 
     49 SkShader* Pattern::platformPattern(const AffineTransform&)
     50 {
     51     if (m_pattern)
     52         return m_pattern;
     53 
     54     SkBitmapRef* ref = tileImage()->nativeImageForCurrentFrame();
     55     if (!ref)
     56         return 0;
     57     m_pattern = SkShader::CreateBitmapShader(ref->bitmap(),
     58                                              toTileMode(m_repeatX),
     59                                              toTileMode(m_repeatY));
     60     m_pattern->setLocalMatrix(m_patternSpaceTransformation);
     61     return m_pattern;
     62 }
     63 
     64 void Pattern::setPlatformPatternSpaceTransform()
     65 {
     66     if (m_pattern)
     67         m_pattern->setLocalMatrix(m_patternSpaceTransformation);
     68 }
     69 
     70 } //namespace
     71