sfxge/common/efx_hash.c

114 /* Produce a 32-bit hash from 32-bit aligned input */
117 	__in_ecount(count)	uint32_t const *input,
129 	/* Handle all but the last three dwords of the input */
131 		a += input[0];
132 		b += input[1];
133 		c += input[2];
137 		input += 3;
143 		c += input[2];
146 		b += input[1];
149 		a += input[0];
163 /* Produce a 32-bit hash from arbitrarily aligned input */
166 	__in_ecount(length)	uint8_t const *input,
177 	/* Handle all but the last twelve bytes of the input */
179 		a += ((uint32_t)input[0]) << 24;
180 		a += ((uint32_t)input[1]) << 16;
181 		a += ((uint32_t)input[2]) << 8;
182 		a += ((uint32_t)input[3]);
183 		b += ((uint32_t)input[4]) << 24;
184 		b += ((uint32_t)input[5]) << 16;
185 		b += ((uint32_t)input[6]) << 8;
186 		b += ((uint32_t)input[7]);
187 		c += ((uint32_t)input[8]) << 24;
188 		c += ((uint32_t)input[9]) << 16;
189 		c += ((uint32_t)input[10]) << 8;
190 		c += ((uint32_t)input[11]);
193 		input += 12;
199 		c += ((uint32_t)input[11]);
202 		c += ((uint32_t)input[10]) << 8;
205 		c += ((uint32_t)input[9]) << 16;
208 		c += ((uint32_t)input[8]) << 24;
211 		b += ((uint32_t)input[7]);
214 		b += ((uint32_t)input[6]) << 8;
217 		b += ((uint32_t)input[5]) << 16;
220 		b += ((uint32_t)input[4]) << 24;
223 		a += ((uint32_t)input[3]);
226 		a += ((uint32_t)input[2]) << 8;
229 		a += ((uint32_t)input[1]) << 16;
232 		a += ((uint32_t)input[0]) << 24;
246 /* Produce a 32-bit hash from arbitrarily aligned input */
249 	__in_ecount(length)	uint8_t const *input,
260 	/* Handle all but the last twelve bytes of the input */
262 		a += ((uint32_t)input[0]);
263 		a += ((uint32_t)input[1]) << 8;
264 		a += ((uint32_t)input[2]) << 16;
265 		a += ((uint32_t)input[3]) << 24;
266 		b += ((uint32_t)input[4]);
267 		b += ((uint32_t)input[5]) << 8;
268 		b += ((uint32_t)input[6]) << 16;
269 		b += ((uint32_t)input[7]) << 24;
270 		c += ((uint32_t)input[8]);
271 		c += ((uint32_t)input[9]) << 8;
272 		c += ((uint32_t)input[10]) << 16;
273 		c += ((uint32_t)input[11]) << 24;
276 		input += 12;
282 		c += ((uint32_t)input[11]) << 24;
285 		c += ((uint32_t)input[10]) << 16;
288 		c += ((uint32_t)input[9]) << 8;
291 		c += ((uint32_t)input[8]);
294 		b += ((uint32_t)input[7]) << 24;
297 		b += ((uint32_t)input[6]) << 16;
300 		b += ((uint32_t)input[5]) << 8;
303 		b += ((uint32_t)input[4]);
306 		a += ((uint32_t)input[3]) << 24;
309 		a += ((uint32_t)input[2]) << 16;
312 		a += ((uint32_t)input[1]) << 8;
315 		a += ((uint32_t)input[0]);