65         int16_t*    runs = fRuns + offsetX;  in add()  local
71             SkAlphaRuns::Break(runs, alpha, x, 1);  in add()
81             runs += x + 1;  in add()
88             SkAlphaRuns::Break(runs, alpha, x, middleCount);  in add()
90             runs += x;  in add()
94                 int n = runs[0];  in add()
97                 runs += n;  in add()
105             SkAlphaRuns::Break(runs, alpha, x, 1);  in add()
119      * Break the runs in the buffer at offsets x and x+count, properly
120      * updating the runs to the right and left.
123      * Allows add() to sum another run to some of the new sub-runs.
126     static void Break(int16_t runs[], uint8_t alpha[], int x, int count) {
129         //  SkAlphaRuns::BreakAt(runs, alpha, x);
130         //  SkAlphaRuns::BreakAt(&runs[x], &alpha[x], count);
132         int16_t* next_runs = runs + x;
136             int n = runs[0];
141                 runs[0] = SkToS16(x);
142                 runs[x] = SkToS16(n - x);
145             runs += n;
150         runs = next_runs;
155             int n = runs[0];
160                 runs[0] = SkToS16(x);
161                 runs[x] = SkToS16(n - x);
168             runs += n;
174      * Cut (at offset x in the buffer) a run into two shorter runs with
179     static void BreakAt(int16_t runs[], uint8_t alpha[], int x) {  in BreakAt()  argument
181             int n = runs[0];  in BreakAt()
186                 runs[0] = SkToS16(x);  in BreakAt()
187                 runs[x] = SkToS16(n - x);  in BreakAt()
190             runs += n;  in BreakAt()