libwebp/enc/iterator.c

25   const VP8Encoder* const enc = it->enc_;
26   enc->y_left_[-1] = enc->u_left_[-1] = enc->v_left_[-1] =
28   memset(enc->y_left_, 129, 16);
29   memset(enc->u_left_, 129, 8);
30   memset(enc->v_left_, 129, 8);
35   const VP8Encoder* const enc = it->enc_;
36   const int top_size = enc->mb_w_ * 16;
37   memset(enc->y_top_, 127, 2 * top_size);
38   memset(enc->nz_, 0, enc->mb_w_ * sizeof(*enc->nz_));
42   VP8Encoder* const enc = it->enc_;
47   it->mb_ = enc->mb_info_;
48   it->preds_ = enc->preds_;
49   it->nz_ = enc->nz_;
50   it->bw_ = &enc->parts_[0];
51   it->done_ = enc->mb_w_* enc->mb_h_;
58 void VP8IteratorInit(VP8Encoder* const enc, VP8EncIterator* const it) {
59   it->enc_ = enc;
60   it->y_stride_  = enc->pic_->y_stride;
61   it->uv_stride_ = enc->pic_->uv_stride;
63   it->yuv_in_   = enc->yuv_in_;
64   it->yuv_out_  = enc->yuv_out_;
65   it->yuv_out2_ = enc->yuv_out2_;
66   it->yuv_p_    = enc->yuv_p_;
67   it->lf_stats_ = enc->lf_stats_;
76   const VP8Encoder* const enc = it->enc_;
78   const WebPPicture* const pic = enc->pic_;
129   const VP8Encoder* const enc = it->enc_;
130   if (enc->config_->show_compressed) {
135     const WebPPicture* const pic = enc->pic_;
230   VP8Encoder* const enc = it->enc_;
235     if (x < enc->mb_w_ - 1) {   // left
238         enc->y_left_[i] = ysrc[15 + i * BPS];
241         enc->u_left_[i] = usrc[7 + i * BPS];
242         enc->v_left_[i] = usrc[15 + i * BPS];
245       enc->y_left_[-1] = enc->y_top_[x * 16 + 15];
246       enc->u_left_[-1] = enc->uv_top_[x * 16 + 0 + 7];
247       enc->v_left_[-1] = enc->uv_top_[x * 16 + 8 + 7];
249     if (y < enc->mb_h_ - 1) {  // top
250       memcpy(enc->y_top_ + x * 16, ysrc + 15 * BPS, 16);
251       memcpy(enc->uv_top_ + x * 16, usrc + 7 * BPS, 8 + 8);
259   if (it->x_ == enc->mb_w_) {
262     it->bw_ = &enc->parts_[it->y_ & (enc->num_parts_ - 1)];
263     it->preds_ = enc->preds_ + it->y_ * 4 * enc->preds_w_;
264     it->nz_ = enc->nz_;
347   VP8Encoder* const enc = it->enc_;
355     it->i4_boundary_[i] = enc->y_left_[15 - i];
358     it->i4_boundary_[17 + i] = enc->y_top_[it->x_ * 16 + i];
361   if (it->x_ < enc->mb_w_ - 1) {
363       it->i4_boundary_[17 + i] = enc->y_top_[it->x_ * 16 + i];