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-rw-r--r--vp10/common/scale.c166
1 files changed, 0 insertions, 166 deletions
diff --git a/vp10/common/scale.c b/vp10/common/scale.c
deleted file mode 100644
index ce6062c19..000000000
--- a/vp10/common/scale.c
+++ /dev/null
@@ -1,166 +0,0 @@
-/*
- * Copyright (c) 2013 The WebM project authors. All Rights Reserved.
- *
- * Use of this source code is governed by a BSD-style license
- * that can be found in the LICENSE file in the root of the source
- * tree. An additional intellectual property rights grant can be found
- * in the file PATENTS. All contributing project authors may
- * be found in the AUTHORS file in the root of the source tree.
- */
-
-#include "./vpx_dsp_rtcd.h"
-#include "vp10/common/filter.h"
-#include "vp10/common/scale.h"
-#include "vpx_dsp/vpx_filter.h"
-
-static INLINE int scaled_x(int val, const struct scale_factors *sf) {
- return (int)((int64_t)val * sf->x_scale_fp >> REF_SCALE_SHIFT);
-}
-
-static INLINE int scaled_y(int val, const struct scale_factors *sf) {
- return (int)((int64_t)val * sf->y_scale_fp >> REF_SCALE_SHIFT);
-}
-
-static int unscaled_value(int val, const struct scale_factors *sf) {
- (void) sf;
- return val;
-}
-
-static int get_fixed_point_scale_factor(int other_size, int this_size) {
- // Calculate scaling factor once for each reference frame
- // and use fixed point scaling factors in decoding and encoding routines.
- // Hardware implementations can calculate scale factor in device driver
- // and use multiplication and shifting on hardware instead of division.
- return (other_size << REF_SCALE_SHIFT) / this_size;
-}
-
-MV32 vp10_scale_mv(const MV *mv, int x, int y, const struct scale_factors *sf) {
- const int x_off_q4 = scaled_x(x << SUBPEL_BITS, sf) & SUBPEL_MASK;
- const int y_off_q4 = scaled_y(y << SUBPEL_BITS, sf) & SUBPEL_MASK;
- const MV32 res = {
- scaled_y(mv->row, sf) + y_off_q4,
- scaled_x(mv->col, sf) + x_off_q4
- };
- return res;
-}
-
-#if CONFIG_VP9_HIGHBITDEPTH
-void vp10_setup_scale_factors_for_frame(struct scale_factors *sf,
- int other_w, int other_h,
- int this_w, int this_h,
- int use_highbd) {
-#else
-void vp10_setup_scale_factors_for_frame(struct scale_factors *sf,
- int other_w, int other_h,
- int this_w, int this_h) {
-#endif
- if (!valid_ref_frame_size(other_w, other_h, this_w, this_h)) {
- sf->x_scale_fp = REF_INVALID_SCALE;
- sf->y_scale_fp = REF_INVALID_SCALE;
- return;
- }
-
- sf->x_scale_fp = get_fixed_point_scale_factor(other_w, this_w);
- sf->y_scale_fp = get_fixed_point_scale_factor(other_h, this_h);
- sf->x_step_q4 = scaled_x(16, sf);
- sf->y_step_q4 = scaled_y(16, sf);
-
- if (vp10_is_scaled(sf)) {
- sf->scale_value_x = scaled_x;
- sf->scale_value_y = scaled_y;
- } else {
- sf->scale_value_x = unscaled_value;
- sf->scale_value_y = unscaled_value;
- }
-
- // TODO(agrange): Investigate the best choice of functions to use here
- // for EIGHTTAP_SMOOTH. Since it is not interpolating, need to choose what
- // to do at full-pel offsets. The current selection, where the filter is
- // applied in one direction only, and not at all for 0,0, seems to give the
- // best quality, but it may be worth trying an additional mode that does
- // do the filtering on full-pel.
- if (sf->x_step_q4 == 16) {
- if (sf->y_step_q4 == 16) {
- // No scaling in either direction.
- sf->predict[0][0][0] = vpx_convolve_copy;
- sf->predict[0][0][1] = vpx_convolve_avg;
- sf->predict[0][1][0] = vpx_convolve8_vert;
- sf->predict[0][1][1] = vpx_convolve8_avg_vert;
- sf->predict[1][0][0] = vpx_convolve8_horiz;
- sf->predict[1][0][1] = vpx_convolve8_avg_horiz;
- } else {
- // No scaling in x direction. Must always scale in the y direction.
- sf->predict[0][0][0] = vpx_convolve8_vert;
- sf->predict[0][0][1] = vpx_convolve8_avg_vert;
- sf->predict[0][1][0] = vpx_convolve8_vert;
- sf->predict[0][1][1] = vpx_convolve8_avg_vert;
- sf->predict[1][0][0] = vpx_convolve8;
- sf->predict[1][0][1] = vpx_convolve8_avg;
- }
- } else {
- if (sf->y_step_q4 == 16) {
- // No scaling in the y direction. Must always scale in the x direction.
- sf->predict[0][0][0] = vpx_convolve8_horiz;
- sf->predict[0][0][1] = vpx_convolve8_avg_horiz;
- sf->predict[0][1][0] = vpx_convolve8;
- sf->predict[0][1][1] = vpx_convolve8_avg;
- sf->predict[1][0][0] = vpx_convolve8_horiz;
- sf->predict[1][0][1] = vpx_convolve8_avg_horiz;
- } else {
- // Must always scale in both directions.
- sf->predict[0][0][0] = vpx_convolve8;
- sf->predict[0][0][1] = vpx_convolve8_avg;
- sf->predict[0][1][0] = vpx_convolve8;
- sf->predict[0][1][1] = vpx_convolve8_avg;
- sf->predict[1][0][0] = vpx_convolve8;
- sf->predict[1][0][1] = vpx_convolve8_avg;
- }
- }
- // 2D subpel motion always gets filtered in both directions
- sf->predict[1][1][0] = vpx_convolve8;
- sf->predict[1][1][1] = vpx_convolve8_avg;
-#if CONFIG_VP9_HIGHBITDEPTH
- if (use_highbd) {
- if (sf->x_step_q4 == 16) {
- if (sf->y_step_q4 == 16) {
- // No scaling in either direction.
- sf->highbd_predict[0][0][0] = vpx_highbd_convolve_copy;
- sf->highbd_predict[0][0][1] = vpx_highbd_convolve_avg;
- sf->highbd_predict[0][1][0] = vpx_highbd_convolve8_vert;
- sf->highbd_predict[0][1][1] = vpx_highbd_convolve8_avg_vert;
- sf->highbd_predict[1][0][0] = vpx_highbd_convolve8_horiz;
- sf->highbd_predict[1][0][1] = vpx_highbd_convolve8_avg_horiz;
- } else {
- // No scaling in x direction. Must always scale in the y direction.
- sf->highbd_predict[0][0][0] = vpx_highbd_convolve8_vert;
- sf->highbd_predict[0][0][1] = vpx_highbd_convolve8_avg_vert;
- sf->highbd_predict[0][1][0] = vpx_highbd_convolve8_vert;
- sf->highbd_predict[0][1][1] = vpx_highbd_convolve8_avg_vert;
- sf->highbd_predict[1][0][0] = vpx_highbd_convolve8;
- sf->highbd_predict[1][0][1] = vpx_highbd_convolve8_avg;
- }
- } else {
- if (sf->y_step_q4 == 16) {
- // No scaling in the y direction. Must always scale in the x direction.
- sf->highbd_predict[0][0][0] = vpx_highbd_convolve8_horiz;
- sf->highbd_predict[0][0][1] = vpx_highbd_convolve8_avg_horiz;
- sf->highbd_predict[0][1][0] = vpx_highbd_convolve8;
- sf->highbd_predict[0][1][1] = vpx_highbd_convolve8_avg;
- sf->highbd_predict[1][0][0] = vpx_highbd_convolve8_horiz;
- sf->highbd_predict[1][0][1] = vpx_highbd_convolve8_avg_horiz;
- } else {
- // Must always scale in both directions.
- sf->highbd_predict[0][0][0] = vpx_highbd_convolve8;
- sf->highbd_predict[0][0][1] = vpx_highbd_convolve8_avg;
- sf->highbd_predict[0][1][0] = vpx_highbd_convolve8;
- sf->highbd_predict[0][1][1] = vpx_highbd_convolve8_avg;
- sf->highbd_predict[1][0][0] = vpx_highbd_convolve8;
- sf->highbd_predict[1][0][1] = vpx_highbd_convolve8_avg;
- }
- }
- // 2D subpel motion always gets filtered in both directions.
- sf->highbd_predict[1][1][0] = vpx_highbd_convolve8;
- sf->highbd_predict[1][1][1] = vpx_highbd_convolve8_avg;
- }
-#endif
-}
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