diff options
Diffstat (limited to 'site/user/api/SkBlendMode_Reference.md')
| -rw-r--r-- | site/user/api/SkBlendMode_Reference.md | 60 |
1 files changed, 30 insertions, 30 deletions
diff --git a/site/user/api/SkBlendMode_Reference.md b/site/user/api/SkBlendMode_Reference.md index 80e98b474f..b00e325725 100644 --- a/site/user/api/SkBlendMode_Reference.md +++ b/site/user/api/SkBlendMode_Reference.md @@ -292,7 +292,7 @@ components color information, using <a href='https://www.w3.org/TR/compositing-1 <tr style='background-color: #f0f0f0; '> <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkBlendMode_kClear'><code>SkBlendMode::kClear</code></a></td> <td style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>0</td> - <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Blend_Mode_Clear'>Blend Mode Clear</a> </td> + <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Clear'>Clear</a> </td> <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> Replaces destination with <a href='SkColor_Reference#Alpha'>Alpha</a> and <a href='#Color'>Color</a> components set to zero; a fully transparent pixel. @@ -301,7 +301,7 @@ a fully transparent pixel. <tr> <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkBlendMode_kSrc'><code>SkBlendMode::kSrc</code></a></td> <td style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>1</td> - <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Blend_Mode_Src'>Blend Mode Src</a> </td> + <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Src'>Src</a> </td> <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> Replaces destination with source. Destination alpha and color component values are ignored. @@ -310,7 +310,7 @@ are ignored. <tr style='background-color: #f0f0f0; '> <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkBlendMode_kDst'><code>SkBlendMode::kDst</code></a></td> <td style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>2</td> - <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Blend_Mode_Dst'>Blend Mode Dst</a> </td> + <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Dst'>Dst</a> </td> <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> Preserves destination, ignoring source. Drawing with <a href='SkPaint_Reference#Paint'>Paint</a> set to <a href='#SkBlendMode_kDst'>kDst</a> has no effect. @@ -319,7 +319,7 @@ no effect. <tr> <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkBlendMode_kSrcOver'><code>SkBlendMode::kSrcOver</code></a></td> <td style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>3</td> - <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Blend_Mode_Src_Over'>Blend Mode Src Over</a> </td> + <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Src_Over'>Src Over</a> </td> <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> Replaces destination with source blended with destination. If source is opaque, replaces destination with source. Used as the default <a href='#Blend_Mode'>Blend Mode</a> for <a href='SkPaint_Reference#SkPaint'>SkPaint</a>. @@ -328,7 +328,7 @@ replaces destination with source. Used as the default <a href='#Blend_Mode'>Blen <tr style='background-color: #f0f0f0; '> <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkBlendMode_kDstOver'><code>SkBlendMode::kDstOver</code></a></td> <td style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>4</td> - <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Blend_Mode_Dst_Over'>Blend Mode Dst Over</a> </td> + <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Dst_Over'>Dst Over</a> </td> <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> Replaces destination with destination blended with source. If destination is opaque, has no effect. @@ -337,7 +337,7 @@ has no effect. <tr> <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkBlendMode_kSrcIn'><code>SkBlendMode::kSrcIn</code></a></td> <td style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>5</td> - <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Blend_Mode_Src_In'>Blend Mode Src In</a> </td> + <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Src_In'>Src In</a> </td> <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> Replaces destination with source using destination opacity. </td> @@ -345,7 +345,7 @@ Replaces destination with source using destination opacity. <tr style='background-color: #f0f0f0; '> <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkBlendMode_kDstIn'><code>SkBlendMode::kDstIn</code></a></td> <td style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>6</td> - <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Blend_Mode_Dst_In'>Blend Mode Dst In</a> </td> + <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Dst_In'>Dst In</a> </td> <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> Scales destination opacity by source opacity. </td> @@ -353,7 +353,7 @@ Scales destination opacity by source opacity. <tr> <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkBlendMode_kSrcOut'><code>SkBlendMode::kSrcOut</code></a></td> <td style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>7</td> - <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Blend_Mode_Src_Out'>Blend Mode Src Out</a> </td> + <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Src_Out'>Src Out</a> </td> <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> Replaces destination with source using the inverse of destination opacity, drawing source fully where destination opacity is zero. @@ -362,7 +362,7 @@ drawing source fully where destination opacity is zero. <tr style='background-color: #f0f0f0; '> <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkBlendMode_kDstOut'><code>SkBlendMode::kDstOut</code></a></td> <td style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>8</td> - <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Blend_Mode_Dst_Out'>Blend Mode Dst Out</a> </td> + <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Dst_Out'>Dst Out</a> </td> <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> Replaces destination opacity with inverse of source opacity. If source is transparent, has no effect. @@ -371,7 +371,7 @@ transparent, has no effect. <tr> <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkBlendMode_kSrcATop'><code>SkBlendMode::kSrcATop</code></a></td> <td style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>9</td> - <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Blend_Mode_Src_Atop'>Blend Mode Src Atop</a> </td> + <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Src_Atop'>Src Atop</a> </td> <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> Blends destination with source using read destination opacity. </td> @@ -379,7 +379,7 @@ Blends destination with source using read destination opacity. <tr style='background-color: #f0f0f0; '> <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkBlendMode_kDstATop'><code>SkBlendMode::kDstATop</code></a></td> <td style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>10</td> - <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Blend_Mode_Dst_Atop'>Blend Mode Dst Atop</a> </td> + <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Dst_Atop'>Dst Atop</a> </td> <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> Blends destination with source using source opacity. </td> @@ -387,7 +387,7 @@ Blends destination with source using source opacity. <tr> <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkBlendMode_kXor'><code>SkBlendMode::kXor</code></a></td> <td style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>11</td> - <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Blend_Mode_Xor'>Blend Mode Xor</a> </td> + <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Xor'>Xor</a> </td> <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> Blends destination by exchanging transparency of the source and destination. </td> @@ -395,7 +395,7 @@ Blends destination by exchanging transparency of the source and destination. <tr style='background-color: #f0f0f0; '> <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkBlendMode_kPlus'><code>SkBlendMode::kPlus</code></a></td> <td style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>12</td> - <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Blend_Mode_Plus'>Blend Mode Plus</a> </td> + <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Plus'>Plus</a> </td> <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> Replaces destination with source and destination added together. </td> @@ -403,7 +403,7 @@ Replaces destination with source and destination added together. <tr> <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkBlendMode_kModulate'><code>SkBlendMode::kModulate</code></a></td> <td style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>13</td> - <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Blend_Mode_Modulate'>Blend Mode Modulate</a> </td> + <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Modulate'>Modulate</a> </td> <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> Replaces destination with source and destination multiplied together. </td> @@ -411,7 +411,7 @@ Replaces destination with source and destination multiplied together. <tr style='background-color: #f0f0f0; '> <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkBlendMode_kScreen'><code>SkBlendMode::kScreen</code></a></td> <td style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>14</td> - <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Blend_Mode_Screen'>Blend Mode Screen</a> </td> + <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Screen'>Screen</a> </td> <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> Replaces destination with inverted source and destination multiplied together. </td> @@ -426,7 +426,7 @@ last Porter_Duff blend mode</td> <tr style='background-color: #f0f0f0; '> <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkBlendMode_kOverlay'><code>SkBlendMode::kOverlay</code></a></td> <td style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>15</td> - <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Blend_Mode_Overlay'>Blend Mode Overlay</a> </td> + <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Overlay'>Overlay</a> </td> <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> Replaces destination with multiply or screen, depending on destination. </td> @@ -434,7 +434,7 @@ Replaces destination with multiply or screen, depending on destination. <tr> <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkBlendMode_kDarken'><code>SkBlendMode::kDarken</code></a></td> <td style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>16</td> - <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Blend_Mode_Darken'>Blend Mode Darken</a> </td> + <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Darken'>Darken</a> </td> <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> Replaces destination with darker of source and destination. </td> @@ -442,7 +442,7 @@ Replaces destination with darker of source and destination. <tr style='background-color: #f0f0f0; '> <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkBlendMode_kLighten'><code>SkBlendMode::kLighten</code></a></td> <td style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>17</td> - <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Blend_Mode_Lighten'>Blend Mode Lighten</a> </td> + <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Lighten'>Lighten</a> </td> <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> Replaces destination with lighter of source and destination. </td> @@ -450,7 +450,7 @@ Replaces destination with lighter of source and destination. <tr> <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkBlendMode_kColorDodge'><code>SkBlendMode::kColorDodge</code></a></td> <td style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>18</td> - <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Blend_Mode_Color_Dodge'>Blend Mode Color Dodge</a> </td> + <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Color_Dodge'>Color Dodge</a> </td> <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> Makes destination brighter to reflect source. </td> @@ -458,7 +458,7 @@ Makes destination brighter to reflect source. <tr style='background-color: #f0f0f0; '> <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkBlendMode_kColorBurn'><code>SkBlendMode::kColorBurn</code></a></td> <td style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>19</td> - <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Blend_Mode_Color_Burn'>Blend Mode Color Burn</a> </td> + <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Color_Burn'>Color Burn</a> </td> <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> Makes destination darker to reflect source. </td> @@ -466,7 +466,7 @@ Makes destination darker to reflect source. <tr> <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkBlendMode_kHardLight'><code>SkBlendMode::kHardLight</code></a></td> <td style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>20</td> - <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Blend_Mode_Hard_Light'>Blend Mode Hard Light</a> </td> + <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Hard_Light'>Hard Light</a> </td> <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> Makes destination lighter or darker, depending on source. </td> @@ -474,7 +474,7 @@ Makes destination lighter or darker, depending on source. <tr style='background-color: #f0f0f0; '> <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkBlendMode_kSoftLight'><code>SkBlendMode::kSoftLight</code></a></td> <td style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>21</td> - <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Blend_Mode_Soft_Light'>Blend Mode Soft Light</a> </td> + <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Soft_Light'>Soft Light</a> </td> <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> Makes destination lighter or darker, depending on source. </td> @@ -482,7 +482,7 @@ Makes destination lighter or darker, depending on source. <tr> <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkBlendMode_kDifference'><code>SkBlendMode::kDifference</code></a></td> <td style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>22</td> - <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Blend_Mode_Difference'>Blend Mode Difference</a> </td> + <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Difference'>Difference</a> </td> <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> Subtracts darker from lighter with higher contrast. </td> @@ -490,7 +490,7 @@ Subtracts darker from lighter with higher contrast. <tr style='background-color: #f0f0f0; '> <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkBlendMode_kExclusion'><code>SkBlendMode::kExclusion</code></a></td> <td style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>23</td> - <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Blend_Mode_Exclusion'>Blend Mode Exclusion</a> </td> + <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Exclusion'>Exclusion</a> </td> <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> Subtracts darker from lighter with lower contrast. </td> @@ -498,7 +498,7 @@ Subtracts darker from lighter with lower contrast. <tr> <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkBlendMode_kMultiply'><code>SkBlendMode::kMultiply</code></a></td> <td style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>24</td> - <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Blend_Mode_Multiply'>Blend Mode Multiply</a> </td> + <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Multiply'>Multiply</a> </td> <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> Multiplies source with destination, darkening image. </td> @@ -514,7 +514,7 @@ Last blend mode operating separately on components. <tr> <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkBlendMode_kHue'><code>SkBlendMode::kHue</code></a></td> <td style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>25</td> - <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Blend_Mode_Hue'>Blend Mode Hue</a> </td> + <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Hue'>Hue</a> </td> <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> Replaces hue of destination with hue of source, leaving saturation and luminosity unchanged. @@ -523,7 +523,7 @@ unchanged. <tr style='background-color: #f0f0f0; '> <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkBlendMode_kSaturation'><code>SkBlendMode::kSaturation</code></a></td> <td style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>26</td> - <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Blend_Mode_Saturation'>Blend Mode Saturation</a> </td> + <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Saturation'>Saturation</a> </td> <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> Replaces saturation of destination saturation hue of source, leaving hue and luminosity unchanged. @@ -532,7 +532,7 @@ luminosity unchanged. <tr> <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkBlendMode_kColor'><code>SkBlendMode::kColor</code></a></td> <td style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>27</td> - <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Blend_Mode_Color'>Blend Mode Color</a> </td> + <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Color'>Color</a> </td> <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> Replaces hue and saturation of destination with hue and saturation of source, leaving luminosity unchanged. @@ -541,7 +541,7 @@ leaving luminosity unchanged. <tr style='background-color: #f0f0f0; '> <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkBlendMode_kLuminosity'><code>SkBlendMode::kLuminosity</code></a></td> <td style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>28</td> - <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Blend_Mode_Luminosity'>Blend Mode Luminosity</a> </td> + <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Luminosity'>Luminosity</a> </td> <td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '> Replaces luminosity of destination with luminosity of source, leaving hue and saturation unchanged. @@ -770,7 +770,7 @@ Da as destination <a href='SkColor_Reference#Alpha'>Alpha</a>, Dc as destination scaling <a href='SkColor_Reference#Alpha'>Alpha</a> and <a href='#Color'>Color</a> components by the lesser of the values. <a href='#SkBlendMode_kModulate'>SkBlendMode::kModulate</a> differs from <a href='#SkBlendMode_kMultiply'>SkBlendMode::kMultiply</a> in two ways. <a href='#SkBlendMode_kModulate'>SkBlendMode::kModulate</a> like <a href='#SkBlendMode_kSrcATop'>SkBlendMode::kSrcATop</a> alters the destination inside -the destination area, as if the destination <a href='SkColor_Reference#Alpha'>Alpha</a> defined the boudaries of a +the destination area, as if the destination <a href='SkColor_Reference#Alpha'>Alpha</a> defined the boundaries of a soft clip. <a href='#SkBlendMode_kMultiply'>SkBlendMode::kMultiply</a> like <a href='#SkBlendMode_kSrcOver'>SkBlendMode::kSrcOver</a> can alter the destination where the destination is transparent. <a href='#SkBlendMode_kModulate'>SkBlendMode::kModulate</a> computes the product of the source and destination using |