Skia
2DGraphicsLibrary
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Static Public Member Functions | |
static sk_sp< SkColorFilter > | Make (const uint8_t table[256]) |
Create a table colorfilter, copying the table into the filter, and applying it to all 4 components. More... | |
static sk_sp< SkColorFilter > | MakeARGB (const uint8_t tableA[256], const uint8_t tableR[256], const uint8_t tableG[256], const uint8_t tableB[256]) |
Create a table colorfilter, with a different table for each component [A, R, G, B]. More... | |
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Create a table colorfilter, copying the table into the filter, and applying it to all 4 components.
a' = table[a]; r' = table[r]; g' = table[g]; b' = table[b]; Compoents are operated on in unpremultiplied space. If the incomming colors are premultiplied, they are temporarily unpremultiplied, then the table is applied, and then the result is remultiplied.
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Create a table colorfilter, with a different table for each component [A, R, G, B].
If a given table is NULL, then it is treated as identity, with the component left unchanged. If a table is not null, then its contents are copied into the filter.