34 #define randomize_buffers(src, dst, stride, coef)                            \  argument
41                 (coef)[y * 4 + x] = (src)[y * (stride) + x] -                \
46 static void dct4x4(int16_t *coef)  in dct4x4()  argument
50         const int a1 = (coef[i*4 + 0] + coef[i*4 + 3]) * 8;  in dct4x4()
51         const int b1 = (coef[i*4 + 1] + coef[i*4 + 2]) * 8;  in dct4x4()
52         const int c1 = (coef[i*4 + 1] - coef[i*4 + 2]) * 8;  in dct4x4()
53         const int d1 = (coef[i*4 + 0] - coef[i*4 + 3]) * 8;  in dct4x4()
54         coef[i*4 + 0] =  a1 + b1;  in dct4x4()
55         coef[i*4 + 1] = (c1 * 2217 + d1 * 5352 + 14500) >> 12;  in dct4x4()
56         coef[i*4 + 2] =  a1 - b1;  in dct4x4()
57         coef[i*4 + 3] = (d1 * 2217 - c1 * 5352 +  7500) >> 12;  in dct4x4()
60         const int a1 = coef[i + 0*4] + coef[i + 3*4];  in dct4x4()
61         const int b1 = coef[i + 1*4] + coef[i + 2*4];  in dct4x4()
62         const int c1 = coef[i + 1*4] - coef[i + 2*4];  in dct4x4()
63         const int d1 = coef[i + 0*4] - coef[i + 3*4];  in dct4x4()
64         coef[i + 0*4] =  (a1 + b1 + 7) >> 4;  in dct4x4()
65         coef[i + 1*4] = ((c1 * 2217 + d1 * 5352 + 12000) >> 16) + !!d1;  in dct4x4()
66         coef[i + 2*4] =  (a1 - b1 + 7) >> 4;  in dct4x4()
67         coef[i + 3*4] =  (d1 * 2217 - c1 * 5352 + 51000) >> 16;  in dct4x4()
71 static void wht4x4(int16_t *coef)  in wht4x4()  argument
75         int a1 = coef[0 * 4 + i];  in wht4x4()
76         int b1 = coef[1 * 4 + i];  in wht4x4()
77         int c1 = coef[2 * 4 + i];  in wht4x4()
78         int d1 = coef[3 * 4 + i];  in wht4x4()
87         coef[0 * 4 + i] = a1;  in wht4x4()
88         coef[1 * 4 + i] = c1;  in wht4x4()
89         coef[2 * 4 + i] = d1;  in wht4x4()
90         coef[3 * 4 + i] = b1;  in wht4x4()
93         int a1 = coef[i * 4 + 0];  in wht4x4()
94         int b1 = coef[i * 4 + 1];  in wht4x4()
95         int c1 = coef[i * 4 + 2];  in wht4x4()
96         int d1 = coef[i * 4 + 3];  in wht4x4()
105         coef[i * 4 + 0] = a1 * 2;  in wht4x4()
106         coef[i * 4 + 1] = c1 * 2;  in wht4x4()
107         coef[i * 4 + 2] = d1 * 2;  in wht4x4()
108         coef[i * 4 + 3] = b1 * 2;  in wht4x4()
118     LOCAL_ALIGNED_16(int16_t, coef, [4 * 4]);  in check_idct()
126     randomize_buffers(src, dst, 4, coef);  in check_idct()
128     dct4x4(coef);  in check_idct()
136                 subcoef0[0] = coef[0];  in check_idct()
138                 memcpy(subcoef0, coef, 4 * 4 * sizeof(int16_t));  in check_idct()
163     LOCAL_ALIGNED_16(int16_t, coef, [4], [4 * 4]);  in check_idct_dc4()
180 …randomize_buffers(src + stride * blocky + blockx, dst + stride * blocky + blockx, stride, coef[i]);  in check_idct_dc4()
181                 dct4x4(coef[i]);  in check_idct_dc4()
182                 memset(&coef[i][1], 0, 15 * sizeof(int16_t));  in check_idct_dc4()
187             memcpy(subcoef0, coef, 4 * 4 * 4 * sizeof(int16_t));  in check_idct_dc4()
188             memcpy(subcoef1, coef, 4 * 4 * 4 * sizeof(int16_t));  in check_idct_dc4()