| /* |
| * Copyright (c) 2018, Alliance for Open Media. All rights reserved. |
| * |
| * This source code is subject to the terms of the BSD 2 Clause License and |
| * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License |
| * was not distributed with this source code in the LICENSE file, you can |
| * obtain it at www.aomedia.org/license/software. If the Alliance for Open |
| * Media Patent License 1.0 was not distributed with this source code in the |
| * PATENTS file, you can obtain it at www.aomedia.org/license/patent. |
| */ |
| |
| #include "av1/common/scan.h" |
| #include "av1/common/txb_common.h" |
| #include "gtest/gtest.h" |
| #include "test/av1_txfm_test.h" |
| |
| static int scan_test(const int16_t *scan, const int16_t *iscan, int si, int r, |
| int c, int h) { |
| if (iscan[c * h + r] != si || scan[si] != c * h + r) { |
| printf("r %d c %d ref_iscan %d iscan %d ref_scan %d scan %d\n", r, c, si, |
| iscan[c * h + r], c * h + r, scan[si]); |
| return 1; |
| } else { |
| return 0; |
| } |
| } |
| |
| static int scan_order_test(const SCAN_ORDER *scan_order, int w, int h, |
| SCAN_MODE mode) { |
| const int16_t *scan = scan_order->scan; |
| const int16_t *iscan = scan_order->iscan; |
| int dim = w + h - 1; |
| if (mode == SCAN_MODE_ZIG_ZAG) { |
| int si = 0; |
| for (int i = 0; i < dim; ++i) { |
| if (i % 2 == 0) { |
| for (int c = 0; c < w; ++c) { |
| int r = i - c; |
| if (r >= 0 && r < h) { |
| if (scan_test(scan, iscan, si, r, c, h)) return 1; |
| ++si; |
| } |
| } |
| } else { |
| for (int r = 0; r < h; ++r) { |
| int c = i - r; |
| if (c >= 0 && c < w) { |
| if (scan_test(scan, iscan, si, r, c, h)) return 1; |
| ++si; |
| } |
| } |
| } |
| } |
| } else if (mode == SCAN_MODE_COL_DIAG) { |
| int si = 0; |
| for (int i = 0; i < dim; ++i) { |
| for (int c = 0; c < w; ++c) { |
| int r = i - c; |
| if (r >= 0 && r < h) { |
| if (scan_test(scan, iscan, si, r, c, h)) return 1; |
| ++si; |
| } |
| } |
| } |
| } else if (mode == SCAN_MODE_ROW_DIAG) { |
| int si = 0; |
| for (int i = 0; i < dim; ++i) { |
| for (int r = 0; r < h; ++r) { |
| int c = i - r; |
| if (c >= 0 && c < w) { |
| if (scan_test(scan, iscan, si, r, c, h)) return 1; |
| ++si; |
| } |
| } |
| } |
| } else if (mode == SCAN_MODE_ROW_1D) { |
| int si = 0; |
| for (int r = 0; r < h; ++r) { |
| for (int c = 0; c < w; ++c) { |
| if (scan_test(scan, iscan, si, r, c, h)) return 1; |
| ++si; |
| } |
| } |
| } else { |
| assert(mode == SCAN_MODE_COL_1D); |
| int si = 0; |
| for (int c = 0; c < w; ++c) { |
| for (int r = 0; r < h; ++r) { |
| if (scan_test(scan, iscan, si, r, c, h)) return 1; |
| ++si; |
| } |
| } |
| } |
| return 0; |
| } |
| |
| TEST(Av1ScanTest, Dependency) { |
| for (int tx_size = TX_4X4; tx_size < TX_SIZES_ALL; ++tx_size) { |
| const int org_rows = tx_size_high[(TX_SIZE)tx_size]; |
| const int org_cols = tx_size_wide[(TX_SIZE)tx_size]; |
| const int rows = get_txb_high((TX_SIZE)tx_size); |
| const int cols = get_txb_wide((TX_SIZE)tx_size); |
| for (int tx_type = 0; tx_type < TX_TYPES; ++tx_type) { |
| if (libaom_test::IsTxSizeTypeValid(static_cast<TX_SIZE>(tx_size), |
| static_cast<TX_TYPE>(tx_type)) == |
| false) { |
| continue; |
| } |
| SCAN_MODE scan_mode; |
| TX_CLASS tx_class = tx_type_to_class[(TX_TYPE)tx_type]; |
| if (tx_class == TX_CLASS_2D) { |
| if (rows == cols) { |
| scan_mode = SCAN_MODE_ZIG_ZAG; |
| } else if (rows > cols) { |
| scan_mode = SCAN_MODE_ROW_DIAG; |
| } else { |
| scan_mode = SCAN_MODE_COL_DIAG; |
| } |
| } else if (tx_class == TX_CLASS_VERT) { |
| scan_mode = SCAN_MODE_ROW_1D; |
| } else { |
| assert(tx_class == TX_CLASS_HORIZ); |
| scan_mode = SCAN_MODE_COL_1D; |
| } |
| const SCAN_ORDER *scan_order = |
| get_default_scan((TX_SIZE)tx_size, (TX_TYPE)tx_type); |
| ASSERT_EQ(scan_order_test(scan_order, cols, rows, scan_mode), 0) |
| << "scan mismatch tx_class " << tx_class << " tx_type " << tx_type |
| << " tx_w " << org_cols << " tx_h " << org_rows << " scan_mode " |
| << scan_mode << "\n"; |
| } |
| } |
| } |