cc/blink/web_blend_mode.h

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CC_BLINK_WEB_BLEND_MODE_H_
   6 #define CC_BLINK_WEB_BLEND_MODE_H_
   7
   8 #include "third_party/WebKit/public/platform/WebBlendMode.h"
   9 #include "third_party/skia/include/core/SkXfermode.h"
  10
  11 namespace cc_blink {
  12
  13 inline SkXfermode::Mode BlendModeToSkia(blink::WebBlendMode blend_mode) {
  14   switch (blend_mode) {
  15     case blink::WebBlendModeNormal:
  16       return SkXfermode::kSrcOver_Mode;
  17     case blink::WebBlendModeMultiply:
  18       return SkXfermode::kMultiply_Mode;
  19     case blink::WebBlendModeScreen:
  20       return SkXfermode::kScreen_Mode;
  21     case blink::WebBlendModeOverlay:
  22       return SkXfermode::kOverlay_Mode;
  23     case blink::WebBlendModeDarken:
  24       return SkXfermode::kDarken_Mode;
  25     case blink::WebBlendModeLighten:
  26       return SkXfermode::kLighten_Mode;
  27     case blink::WebBlendModeColorDodge:
  28       return SkXfermode::kColorDodge_Mode;
  29     case blink::WebBlendModeColorBurn:
  30       return SkXfermode::kColorBurn_Mode;
  31     case blink::WebBlendModeHardLight:
  32       return SkXfermode::kHardLight_Mode;
  33     case blink::WebBlendModeSoftLight:
  34       return SkXfermode::kSoftLight_Mode;
  35     case blink::WebBlendModeDifference:
  36       return SkXfermode::kDifference_Mode;
  37     case blink::WebBlendModeExclusion:
  38       return SkXfermode::kExclusion_Mode;
  39     case blink::WebBlendModeHue:
  40       return SkXfermode::kHue_Mode;
  41     case blink::WebBlendModeSaturation:
  42       return SkXfermode::kSaturation_Mode;
  43     case blink::WebBlendModeColor:
  44       return SkXfermode::kColor_Mode;
  45     case blink::WebBlendModeLuminosity:
  46       return SkXfermode::kLuminosity_Mode;
  47   }
  48   return SkXfermode::kSrcOver_Mode;
  49 }
  50
  51 inline blink::WebBlendMode BlendModeFromSkia(SkXfermode::Mode blend_mode) {
  52   switch (blend_mode) {
  53     case SkXfermode::kSrcOver_Mode:
  54       return blink::WebBlendModeNormal;
  55     case SkXfermode::kMultiply_Mode:
  56       return blink::WebBlendModeMultiply;
  57     case SkXfermode::kScreen_Mode:
  58       return blink::WebBlendModeScreen;
  59     case SkXfermode::kOverlay_Mode:
  60       return blink::WebBlendModeOverlay;
  61     case SkXfermode::kDarken_Mode:
  62       return blink::WebBlendModeDarken;
  63     case SkXfermode::kLighten_Mode:
  64       return blink::WebBlendModeLighten;
  65     case SkXfermode::kColorDodge_Mode:
  66       return blink::WebBlendModeColorDodge;
  67     case SkXfermode::kColorBurn_Mode:
  68       return blink::WebBlendModeColorBurn;
  69     case SkXfermode::kHardLight_Mode:
  70       return blink::WebBlendModeHardLight;
  71     case SkXfermode::kSoftLight_Mode:
  72       return blink::WebBlendModeSoftLight;
  73     case SkXfermode::kDifference_Mode:
  74       return blink::WebBlendModeDifference;
  75     case SkXfermode::kExclusion_Mode:
  76       return blink::WebBlendModeExclusion;
  77     case SkXfermode::kHue_Mode:
  78       return blink::WebBlendModeHue;
  79     case SkXfermode::kSaturation_Mode:
  80       return blink::WebBlendModeSaturation;
  81     case SkXfermode::kColor_Mode:
  82       return blink::WebBlendModeColor;
  83     case SkXfermode::kLuminosity_Mode:
  84       return blink::WebBlendModeLuminosity;
  85
  86     // these value are SkXfermodes, but no blend modes.
  87     case SkXfermode::kClear_Mode:
  88     case SkXfermode::kSrc_Mode:
  89     case SkXfermode::kDst_Mode:
  90     case SkXfermode::kDstOver_Mode:
  91     case SkXfermode::kSrcIn_Mode:
  92     case SkXfermode::kDstIn_Mode:
  93     case SkXfermode::kSrcOut_Mode:
  94     case SkXfermode::kDstOut_Mode:
  95     case SkXfermode::kSrcATop_Mode:
  96     case SkXfermode::kDstATop_Mode:
  97     case SkXfermode::kXor_Mode:
  98     case SkXfermode::kPlus_Mode:
  99     case SkXfermode::kModulate_Mode:
 100       NOTREACHED();
 101   }
 102   return blink::WebBlendModeNormal;
 103 }
 104
 105 }  // namespace cc_blink
 106
 107 #endif  // CC_BLINK_WEB_BLEND_MODE_H_