1 files changed, 75 insertions, 0 deletions
diff --git a/third_party/aom/av1/common/tile_common.h b/third_party/aom/av1/common/tile_common.h
new file mode 100644
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+++ b/third_party/aom/av1/common/tile_common.h
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+/*
+ * Copyright (c) 2016, 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.
+ */
+
+#ifndef AOM_AV1_COMMON_TILE_COMMON_H_
+#define AOM_AV1_COMMON_TILE_COMMON_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "config/aom_config.h"
+#include "aom_dsp/rect.h"
+
+struct AV1Common;
+struct SequenceHeader;
+struct CommonTileParams;
+
+#define DEFAULT_MAX_NUM_TG 1
+
+typedef struct TileInfo {
+  int mi_row_start, mi_row_end;
+  int mi_col_start, mi_col_end;
+  int tile_row;
+  int tile_col;
+} TileInfo;
+
+// initializes 'tile->mi_(row|col)_(start|end)' for (row, col) based on
+// 'cm->log2_tile_(rows|cols)' & 'cm->mi_(rows|cols)'
+void av1_tile_init(TileInfo *tile, const struct AV1Common *cm, int row,
+                   int col);
+
+void av1_tile_set_row(TileInfo *tile, const struct AV1Common *cm, int row);
+void av1_tile_set_col(TileInfo *tile, const struct AV1Common *cm, int col);
+
+int av1_get_sb_rows_in_tile(const struct AV1Common *cm, const TileInfo *tile);
+int av1_get_sb_cols_in_tile(const struct AV1Common *cm, const TileInfo *tile);
+
+// Return the pixel extents of the given tile
+PixelRect av1_get_tile_rect(const TileInfo *tile_info,
+                            const struct AV1Common *cm, int is_uv);
+
+// Define tile maximum width and area
+// There is no maximum height since height is limited by area and width limits
+// The minimum tile width or height is fixed at one superblock
+#define MAX_TILE_WIDTH (4096)        // Max Tile width in pixels
+#define MAX_TILE_AREA (4096 * 2304)  // Maximum tile area in pixels
+#if CONFIG_CWG_C013
+#define MAX_TILE_AREA_LEVEL_7_AND_ABOVE (4096 * 4608)
+#endif
+
+void av1_get_uniform_tile_size(const struct AV1Common *cm, int *w, int *h);
+void av1_get_tile_limits(struct AV1Common *const cm);
+void av1_calculate_tile_cols(const struct SequenceHeader *const seq_params,
+                             int cm_mi_rows, int cm_mi_cols,
+                             struct CommonTileParams *const tiles);
+void av1_calculate_tile_rows(const struct SequenceHeader *const seq_params,
+                             int cm_mi_rows,
+                             struct CommonTileParams *const tiles);
+
+// Checks if the minimum tile_width requirement is satisfied
+int av1_is_min_tile_width_satisfied(const struct AV1Common *cm);
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // AOM_AV1_COMMON_TILE_COMMON_H_