21 static size_t UTF8Position(size_t last, size_t c, size_t clamp) {  in UTF8Position()
25     return BROTLI_MIN(size_t, 1, clamp);  in UTF8Position()
31       return BROTLI_MIN(size_t, 2, clamp);  in UTF8Position()
36 static size_t DecideMultiByteStatsLevel(size_t pos, size_t len, size_t mask,  in DecideMultiByteStatsLevel()
38   size_t counts[3] = { 0 };  in DecideMultiByteStatsLevel()
39   size_t max_utf8 = 1;  /* should be 2, but 1 compresses better. */  in DecideMultiByteStatsLevel()
40   size_t last_c = 0;  in DecideMultiByteStatsLevel()
41   size_t i;  in DecideMultiByteStatsLevel()
43     size_t c = data[(pos + i) & mask];  in DecideMultiByteStatsLevel()
56 static void EstimateBitCostsForLiteralsUTF8(size_t pos, size_t len, size_t mask,  in EstimateBitCostsForLiteralsUTF8()
60   const size_t max_utf8 = DecideMultiByteStatsLevel(pos, len, mask, data);  in EstimateBitCostsForLiteralsUTF8()
61   size_t histogram[3][256] = { { 0 } };  in EstimateBitCostsForLiteralsUTF8()
62   size_t window_half = 495;  in EstimateBitCostsForLiteralsUTF8()
63   size_t in_window = BROTLI_MIN(size_t, window_half, len);  in EstimateBitCostsForLiteralsUTF8()
64   size_t in_window_utf8[3] = { 0 };  in EstimateBitCostsForLiteralsUTF8()
66   size_t i;  in EstimateBitCostsForLiteralsUTF8()
68     size_t last_c = 0;  in EstimateBitCostsForLiteralsUTF8()
69     size_t utf8_pos = 0;  in EstimateBitCostsForLiteralsUTF8()
71       size_t c = data[(pos + i) & mask];  in EstimateBitCostsForLiteralsUTF8()
83       size_t c =  in EstimateBitCostsForLiteralsUTF8()
85       size_t last_c =  in EstimateBitCostsForLiteralsUTF8()
87       size_t utf8_pos2 = UTF8Position(last_c, c, max_utf8);  in EstimateBitCostsForLiteralsUTF8()
93       size_t c = data[(pos + i + window_half - 1) & mask];  in EstimateBitCostsForLiteralsUTF8()
94       size_t last_c = data[(pos + i + window_half - 2) & mask];  in EstimateBitCostsForLiteralsUTF8()
95       size_t utf8_pos2 = UTF8Position(last_c, c, max_utf8);  in EstimateBitCostsForLiteralsUTF8()
100       size_t c = i < 1 ? 0 : data[(pos + i - 1) & mask];  in EstimateBitCostsForLiteralsUTF8()
101       size_t last_c = i < 2 ? 0 : data[(pos + i - 2) & mask];  in EstimateBitCostsForLiteralsUTF8()
102       size_t utf8_pos = UTF8Position(last_c, c, max_utf8);  in EstimateBitCostsForLiteralsUTF8()
103       size_t masked_pos = (pos + i) & mask;  in EstimateBitCostsForLiteralsUTF8()
104       size_t histo = histogram[utf8_pos][data[masked_pos]];  in EstimateBitCostsForLiteralsUTF8()
127 void BrotliEstimateBitCostsForLiterals(size_t pos, size_t len, size_t mask,  in BrotliEstimateBitCostsForLiterals()
133     size_t histogram[256] = { 0 };  in BrotliEstimateBitCostsForLiterals()
134     size_t window_half = 2000;  in BrotliEstimateBitCostsForLiterals()
135     size_t in_window = BROTLI_MIN(size_t, window_half, len);  in BrotliEstimateBitCostsForLiterals()
138     size_t i;  in BrotliEstimateBitCostsForLiterals()
145       size_t histo;  in BrotliEstimateBitCostsForLiterals()