1 2 #ifndef SkTableColorFilter_DEFINED 3 #define SkTableColorFilter_DEFINED 4 5 #include "SkColorFilter.h" 6 7 class SK_API SkTableColorFilter { 8 public: 9 /** 10 * Create a table colorfilter, copying the table into the filter, and 11 * applying it to all 4 components. 12 * a' = table[a]; 13 * r' = table[r]; 14 * g' = table[g]; 15 * b' = table[b]; 16 * Compoents are operated on in unpremultiplied space. If the incomming 17 * colors are premultiplied, they are temporarily unpremultiplied, then 18 * the table is applied, and then the result is remultiplied. 19 */ 20 static SkColorFilter* Create(const uint8_t table[256]); 21 22 /** 23 * Create a table colorfilter, with a different table for each 24 * component [A, R, G, B]. If a given table is NULL, then it is 25 * treated as identity, with the component left unchanged. If a table 26 * is not null, then its contents are copied into the filter. 27 */ 28 static SkColorFilter* CreateARGB(const uint8_t tableA[256], 29 const uint8_t tableR[256], 30 const uint8_t tableG[256], 31 const uint8_t tableB[256]); 32 33 SK_DECLARE_FLATTENABLE_REGISTRAR_GROUP() 34 }; 35 36 #endif 37
