Lines Matching refs:step
84 double step[16];
88 // step 1
89 step[ 0] = input[0] + input[15];
90 step[ 1] = input[1] + input[14];
91 step[ 2] = input[2] + input[13];
92 step[ 3] = input[3] + input[12];
93 step[ 4] = input[4] + input[11];
94 step[ 5] = input[5] + input[10];
95 step[ 6] = input[6] + input[ 9];
96 step[ 7] = input[7] + input[ 8];
97 step[ 8] = input[7] - input[ 8];
98 step[ 9] = input[6] - input[ 9];
99 step[10] = input[5] - input[10];
100 step[11] = input[4] - input[11];
101 step[12] = input[3] - input[12];
102 step[13] = input[2] - input[13];
103 step[14] = input[1] - input[14];
104 step[15] = input[0] - input[15];
106 // step 2
107 output[0] = step[0] + step[7];
108 output[1] = step[1] + step[6];
109 output[2] = step[2] + step[5];
110 output[3] = step[3] + step[4];
111 output[4] = step[3] - step[4];
112 output[5] = step[2] - step[5];
113 output[6] = step[1] - step[6];
114 output[7] = step[0] - step[7];
116 temp1 = step[ 8] * C7;
117 temp2 = step[15] * C9;
120 temp1 = step[ 9] * C11;
121 temp2 = step[14] * C5;
124 temp1 = step[10] * C3;
125 temp2 = step[13] * C13;
128 temp1 = step[11] * C15;
129 temp2 = step[12] * C1;
132 temp1 = step[11] * C1;
133 temp2 = step[12] * C15;
136 temp1 = step[10] * C13;
137 temp2 = step[13] * C3;
140 temp1 = step[ 9] * C5;
141 temp2 = step[14] * C11;
144 temp1 = step[ 8] * C9;
145 temp2 = step[15] * C7;
148 // step 3
149 step[ 0] = output[0] + output[3];
150 step[ 1] = output[1] + output[2];
151 step[ 2] = output[1] - output[2];
152 step[ 3] = output[0] - output[3];
156 step[ 4] = temp1 + temp2;
160 step[ 5] = temp1 + temp2;
164 step[ 6] = temp2 - temp1;
168 step[ 7] = temp2 - temp1;
170 step[ 8] = output[ 8] + output[11];
171 step[ 9] = output[ 9] + output[10];
172 step[10] = output[ 9] - output[10];
173 step[11] = output[ 8] - output[11];
175 step[12] = output[12] + output[15];
176 step[13] = output[13] + output[14];
177 step[14] = output[13] - output[14];
178 step[15] = output[12] - output[15];
180 // step 4
181 output[ 0] = (step[ 0] + step[ 1]);
182 output[ 8] = (step[ 0] - step[ 1]);
184 temp1 = step[2] * C12;
185 temp2 = step[3] * C4;
189 temp1 = step[2] * C4;
190 temp2 = step[3] * C12;
194 output[ 2] = 2 * ((step[4] + step[ 5]) * C8);
195 output[14] = 2 * ((step[7] - step[ 6]) * C8);
197 temp1 = step[4] - step[5];
198 temp2 = step[6] + step[7];
202 intermediate[8] = step[8] + step[14];
203 intermediate[9] = step[9] + step[15];
215 output[ 9] = 2 * ((step[10] + step[11]) * C8);
217 intermediate[11] = step[10] - step[11];
218 intermediate[12] = step[12] + step[13];
219 intermediate[13] = step[12] - step[13];
220 intermediate[14] = step[ 8] - step[14];
221 intermediate[15] = step[ 9] - step[15];
