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Diffstat (limited to 'media/libaom/src/test/scan_test.cc')
| -rw-r--r-- | media/libaom/src/test/scan_test.cc | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/media/libaom/src/test/scan_test.cc b/media/libaom/src/test/scan_test.cc new file mode 100644 index 000000000..dee2ab5a6 --- /dev/null +++ b/media/libaom/src/test/scan_test.cc @@ -0,0 +1,133 @@ +/* + * 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 "third_party/googletest/src/googletest/include/gtest/gtest.h" +#include "av1/common/scan.h" +#include "av1/common/txb_common.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 w) { + if (iscan[r * w + c] != si || scan[si] != r * w + c) { + printf("r %d c %d ref_iscan %d iscan %d ref_scan %d scan %d\n", r, c, si, + iscan[r * w + c], r * w + c, scan[si]); + return 1; + } else { + return 0; + } +} + +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, w)) 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, w)) 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, w)) 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, w)) 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, w)) 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, w)) 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"; + } + } +} |