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-rw-r--r--media/libaom/src/test/scan_test.cc133
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
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+++ b/media/libaom/src/test/scan_test.cc
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+/*
+ * 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";
+ }
+ }
+}