void ff_ivi_col_slant8(const int32_t *in, int16_t *out, uint32_t pitch, const uint8_t *flags) { int i, row2, row4, row8; int t0, t1, t2, t3, t4, t5, t6, t7, t8; row2 = pitch << 1; row4 = pitch << 2; row8 = pitch << 3; #define COMPENSATE(x) (((x) + 1)>>1) for (i = 0; i < 8; i++) { if (flags[i]) { IVI_INV_SLANT8(in[0], in[8], in[16], in[24], in[32], in[40], in[48], in[56], out[0], out[pitch], out[row2], out[row2 + pitch], out[row4], out[row4 + pitch], out[row4 + row2], out[row8 - pitch], t0, t1, t2, t3, t4, t5, t6, t7, t8); } else { out[0] = out[pitch] = out[row2] = out[row2 + pitch] = out[row4] = out[row4 + pitch] = out[row4 + row2] = out[row8 - pitch] = 0; } in++; out++; } #undef COMPENSATE }
void ff_ivi_inverse_slant_8x8(const int32_t *in, int16_t *out, uint32_t pitch, const uint8_t *flags) { int i; const int32_t *src; int32_t *dst; int tmp[64]; int t0, t1, t2, t3, t4, t5, t6, t7, t8; #define COMPENSATE(x) (x) src = in; dst = tmp; for (i = 0; i < 8; i++) { if (flags[i]) { IVI_INV_SLANT8(src[0], src[8], src[16], src[24], src[32], src[40], src[48], src[56], dst[0], dst[8], dst[16], dst[24], dst[32], dst[40], dst[48], dst[56], t0, t1, t2, t3, t4, t5, t6, t7, t8); } else dst[0] = dst[8] = dst[16] = dst[24] = dst[32] = dst[40] = dst[48] = dst[56] = 0; src++; dst++; } #undef COMPENSATE #define COMPENSATE(x) ((x + 1)>>1) src = tmp; for (i = 0; i < 8; i++) { if (!src[0] && !src[1] && !src[2] && !src[3] && !src[4] && !src[5] && !src[6] && !src[7]) { memset(out, 0, 8 * sizeof(out[0])); } else { IVI_INV_SLANT8(src[0], src[1], src[2], src[3], src[4], src[5], src[6], src[7], out[0], out[1], out[2], out[3], out[4], out[5], out[6], out[7], t0, t1, t2, t3, t4, t5, t6, t7, t8); } src += 8; out += pitch; } #undef COMPENSATE }
void ff_ivi_row_slant8(const int32_t *in, int16_t *out, uint32_t pitch, const uint8_t *flags) { int i; int t0, t1, t2, t3, t4, t5, t6, t7, t8; #define COMPENSATE(x) (((x) + 1)>>1) for (i = 0; i < 8; i++) { if (!in[0] && !in[1] && !in[2] && !in[3] && !in[4] && !in[5] && !in[6] && !in[7]) { memset(out, 0, 8*sizeof(out[0])); } else { IVI_INV_SLANT8( in[0], in[1], in[2], in[3], in[4], in[5], in[6], in[7], out[0], out[1], out[2], out[3], out[4], out[5], out[6], out[7], t0, t1, t2, t3, t4, t5, t6, t7, t8); } in += 8; out += pitch; } #undef COMPENSATE }