1697 lines
63 KiB
C
1697 lines
63 KiB
C
/*
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* Copyright (c) 2010 The WebM project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "./vpx_config.h"
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#include "./vpx_dsp_rtcd.h"
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#include "vp9/common/vp9_loopfilter.h"
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#include "vp9/common/vp9_onyxc_int.h"
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#include "vp9/common/vp9_reconinter.h"
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#include "vpx_dsp/vpx_dsp_common.h"
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#include "vpx_mem/vpx_mem.h"
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#include "vpx_ports/mem.h"
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#include "vp9/common/vp9_seg_common.h"
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// 64 bit masks for left transform size. Each 1 represents a position where
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// we should apply a loop filter across the left border of an 8x8 block
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// boundary.
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//
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// In the case of TX_16X16-> ( in low order byte first we end up with
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// a mask that looks like this
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//
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// 10101010
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// 10101010
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// 10101010
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// 10101010
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// 10101010
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// 10101010
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// 10101010
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// 10101010
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//
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// A loopfilter should be applied to every other 8x8 horizontally.
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static const uint64_t left_64x64_txform_mask[TX_SIZES]= {
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0xffffffffffffffffULL, // TX_4X4
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0xffffffffffffffffULL, // TX_8x8
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0x5555555555555555ULL, // TX_16x16
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0x1111111111111111ULL, // TX_32x32
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};
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// 64 bit masks for above transform size. Each 1 represents a position where
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// we should apply a loop filter across the top border of an 8x8 block
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// boundary.
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//
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// In the case of TX_32x32 -> ( in low order byte first we end up with
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// a mask that looks like this
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//
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// 11111111
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// 00000000
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// 00000000
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// 00000000
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// 11111111
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// 00000000
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// 00000000
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// 00000000
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//
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// A loopfilter should be applied to every other 4 the row vertically.
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static const uint64_t above_64x64_txform_mask[TX_SIZES]= {
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0xffffffffffffffffULL, // TX_4X4
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0xffffffffffffffffULL, // TX_8x8
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0x00ff00ff00ff00ffULL, // TX_16x16
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0x000000ff000000ffULL, // TX_32x32
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};
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// 64 bit masks for prediction sizes (left). Each 1 represents a position
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// where left border of an 8x8 block. These are aligned to the right most
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// appropriate bit, and then shifted into place.
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//
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// In the case of TX_16x32 -> ( low order byte first ) we end up with
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// a mask that looks like this :
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//
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// 10000000
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// 10000000
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// 10000000
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// 10000000
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// 00000000
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// 00000000
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// 00000000
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// 00000000
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static const uint64_t left_prediction_mask[BLOCK_SIZES] = {
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0x0000000000000001ULL, // BLOCK_4X4,
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0x0000000000000001ULL, // BLOCK_4X8,
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0x0000000000000001ULL, // BLOCK_8X4,
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0x0000000000000001ULL, // BLOCK_8X8,
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0x0000000000000101ULL, // BLOCK_8X16,
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0x0000000000000001ULL, // BLOCK_16X8,
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0x0000000000000101ULL, // BLOCK_16X16,
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0x0000000001010101ULL, // BLOCK_16X32,
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0x0000000000000101ULL, // BLOCK_32X16,
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0x0000000001010101ULL, // BLOCK_32X32,
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0x0101010101010101ULL, // BLOCK_32X64,
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0x0000000001010101ULL, // BLOCK_64X32,
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0x0101010101010101ULL, // BLOCK_64X64
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};
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// 64 bit mask to shift and set for each prediction size.
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static const uint64_t above_prediction_mask[BLOCK_SIZES] = {
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0x0000000000000001ULL, // BLOCK_4X4
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0x0000000000000001ULL, // BLOCK_4X8
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0x0000000000000001ULL, // BLOCK_8X4
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0x0000000000000001ULL, // BLOCK_8X8
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0x0000000000000001ULL, // BLOCK_8X16,
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0x0000000000000003ULL, // BLOCK_16X8
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0x0000000000000003ULL, // BLOCK_16X16
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0x0000000000000003ULL, // BLOCK_16X32,
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0x000000000000000fULL, // BLOCK_32X16,
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0x000000000000000fULL, // BLOCK_32X32,
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0x000000000000000fULL, // BLOCK_32X64,
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0x00000000000000ffULL, // BLOCK_64X32,
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0x00000000000000ffULL, // BLOCK_64X64
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};
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// 64 bit mask to shift and set for each prediction size. A bit is set for
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// each 8x8 block that would be in the left most block of the given block
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// size in the 64x64 block.
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static const uint64_t size_mask[BLOCK_SIZES] = {
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0x0000000000000001ULL, // BLOCK_4X4
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0x0000000000000001ULL, // BLOCK_4X8
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0x0000000000000001ULL, // BLOCK_8X4
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0x0000000000000001ULL, // BLOCK_8X8
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0x0000000000000101ULL, // BLOCK_8X16,
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0x0000000000000003ULL, // BLOCK_16X8
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0x0000000000000303ULL, // BLOCK_16X16
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0x0000000003030303ULL, // BLOCK_16X32,
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0x0000000000000f0fULL, // BLOCK_32X16,
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0x000000000f0f0f0fULL, // BLOCK_32X32,
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0x0f0f0f0f0f0f0f0fULL, // BLOCK_32X64,
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0x00000000ffffffffULL, // BLOCK_64X32,
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0xffffffffffffffffULL, // BLOCK_64X64
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};
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// These are used for masking the left and above borders.
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static const uint64_t left_border = 0x1111111111111111ULL;
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static const uint64_t above_border = 0x000000ff000000ffULL;
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// 16 bit masks for uv transform sizes.
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static const uint16_t left_64x64_txform_mask_uv[TX_SIZES]= {
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0xffff, // TX_4X4
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0xffff, // TX_8x8
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0x5555, // TX_16x16
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0x1111, // TX_32x32
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};
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static const uint16_t above_64x64_txform_mask_uv[TX_SIZES]= {
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0xffff, // TX_4X4
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0xffff, // TX_8x8
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0x0f0f, // TX_16x16
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0x000f, // TX_32x32
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};
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// 16 bit left mask to shift and set for each uv prediction size.
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static const uint16_t left_prediction_mask_uv[BLOCK_SIZES] = {
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0x0001, // BLOCK_4X4,
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0x0001, // BLOCK_4X8,
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0x0001, // BLOCK_8X4,
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0x0001, // BLOCK_8X8,
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0x0001, // BLOCK_8X16,
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0x0001, // BLOCK_16X8,
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0x0001, // BLOCK_16X16,
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0x0011, // BLOCK_16X32,
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0x0001, // BLOCK_32X16,
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0x0011, // BLOCK_32X32,
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0x1111, // BLOCK_32X64
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0x0011, // BLOCK_64X32,
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0x1111, // BLOCK_64X64
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};
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// 16 bit above mask to shift and set for uv each prediction size.
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static const uint16_t above_prediction_mask_uv[BLOCK_SIZES] = {
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0x0001, // BLOCK_4X4
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0x0001, // BLOCK_4X8
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0x0001, // BLOCK_8X4
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0x0001, // BLOCK_8X8
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0x0001, // BLOCK_8X16,
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0x0001, // BLOCK_16X8
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0x0001, // BLOCK_16X16
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0x0001, // BLOCK_16X32,
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0x0003, // BLOCK_32X16,
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0x0003, // BLOCK_32X32,
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0x0003, // BLOCK_32X64,
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0x000f, // BLOCK_64X32,
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0x000f, // BLOCK_64X64
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};
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// 64 bit mask to shift and set for each uv prediction size
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static const uint16_t size_mask_uv[BLOCK_SIZES] = {
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0x0001, // BLOCK_4X4
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0x0001, // BLOCK_4X8
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0x0001, // BLOCK_8X4
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0x0001, // BLOCK_8X8
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0x0001, // BLOCK_8X16,
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0x0001, // BLOCK_16X8
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0x0001, // BLOCK_16X16
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0x0011, // BLOCK_16X32,
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0x0003, // BLOCK_32X16,
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0x0033, // BLOCK_32X32,
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0x3333, // BLOCK_32X64,
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0x00ff, // BLOCK_64X32,
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0xffff, // BLOCK_64X64
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};
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static const uint16_t left_border_uv = 0x1111;
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static const uint16_t above_border_uv = 0x000f;
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static const int mode_lf_lut[MB_MODE_COUNT] = {
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // INTRA_MODES
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1, 1, 0, 1 // INTER_MODES (ZEROMV == 0)
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};
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static void update_sharpness(loop_filter_info_n *lfi, int sharpness_lvl) {
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int lvl;
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// For each possible value for the loop filter fill out limits
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for (lvl = 0; lvl <= MAX_LOOP_FILTER; lvl++) {
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// Set loop filter parameters that control sharpness.
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int block_inside_limit = lvl >> ((sharpness_lvl > 0) + (sharpness_lvl > 4));
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if (sharpness_lvl > 0) {
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if (block_inside_limit > (9 - sharpness_lvl))
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block_inside_limit = (9 - sharpness_lvl);
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}
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if (block_inside_limit < 1)
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block_inside_limit = 1;
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memset(lfi->lfthr[lvl].lim, block_inside_limit, SIMD_WIDTH);
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memset(lfi->lfthr[lvl].mblim, (2 * (lvl + 2) + block_inside_limit),
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SIMD_WIDTH);
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}
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}
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static uint8_t get_filter_level(const loop_filter_info_n *lfi_n,
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const MODE_INFO *mi) {
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return lfi_n->lvl[mi->segment_id][mi->ref_frame[0]]
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[mode_lf_lut[mi->mode]];
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}
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void vp9_loop_filter_init(VP9_COMMON *cm) {
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loop_filter_info_n *lfi = &cm->lf_info;
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struct loopfilter *lf = &cm->lf;
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int lvl;
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// init limits for given sharpness
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update_sharpness(lfi, lf->sharpness_level);
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lf->last_sharpness_level = lf->sharpness_level;
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// init hev threshold const vectors
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for (lvl = 0; lvl <= MAX_LOOP_FILTER; lvl++)
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memset(lfi->lfthr[lvl].hev_thr, (lvl >> 4), SIMD_WIDTH);
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}
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void vp9_loop_filter_frame_init(VP9_COMMON *cm, int default_filt_lvl) {
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int seg_id;
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// n_shift is the multiplier for lf_deltas
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// the multiplier is 1 for when filter_lvl is between 0 and 31;
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// 2 when filter_lvl is between 32 and 63
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const int scale = 1 << (default_filt_lvl >> 5);
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loop_filter_info_n *const lfi = &cm->lf_info;
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struct loopfilter *const lf = &cm->lf;
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const struct segmentation *const seg = &cm->seg;
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// update limits if sharpness has changed
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if (lf->last_sharpness_level != lf->sharpness_level) {
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update_sharpness(lfi, lf->sharpness_level);
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lf->last_sharpness_level = lf->sharpness_level;
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}
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for (seg_id = 0; seg_id < MAX_SEGMENTS; seg_id++) {
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int lvl_seg = default_filt_lvl;
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if (segfeature_active(seg, seg_id, SEG_LVL_ALT_LF)) {
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const int data = get_segdata(seg, seg_id, SEG_LVL_ALT_LF);
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lvl_seg = clamp(seg->abs_delta == SEGMENT_ABSDATA ?
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data : default_filt_lvl + data,
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0, MAX_LOOP_FILTER);
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}
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if (!lf->mode_ref_delta_enabled) {
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// we could get rid of this if we assume that deltas are set to
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// zero when not in use; encoder always uses deltas
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memset(lfi->lvl[seg_id], lvl_seg, sizeof(lfi->lvl[seg_id]));
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} else {
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int ref, mode;
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const int intra_lvl = lvl_seg + lf->ref_deltas[INTRA_FRAME] * scale;
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lfi->lvl[seg_id][INTRA_FRAME][0] = clamp(intra_lvl, 0, MAX_LOOP_FILTER);
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for (ref = LAST_FRAME; ref < MAX_REF_FRAMES; ++ref) {
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for (mode = 0; mode < MAX_MODE_LF_DELTAS; ++mode) {
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const int inter_lvl = lvl_seg + lf->ref_deltas[ref] * scale
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+ lf->mode_deltas[mode] * scale;
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lfi->lvl[seg_id][ref][mode] = clamp(inter_lvl, 0, MAX_LOOP_FILTER);
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}
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}
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}
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}
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}
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static void filter_selectively_vert_row2(int subsampling_factor,
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uint8_t *s, int pitch,
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unsigned int mask_16x16,
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unsigned int mask_8x8,
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unsigned int mask_4x4,
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unsigned int mask_4x4_int,
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const loop_filter_thresh *lfthr,
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const uint8_t *lfl) {
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const int dual_mask_cutoff = subsampling_factor ? 0xff : 0xffff;
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const int lfl_forward = subsampling_factor ? 4 : 8;
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const unsigned int dual_one = 1 | (1 << lfl_forward);
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unsigned int mask;
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uint8_t *ss[2];
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ss[0] = s;
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for (mask =
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(mask_16x16 | mask_8x8 | mask_4x4 | mask_4x4_int) & dual_mask_cutoff;
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mask; mask = (mask & ~dual_one) >> 1) {
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if (mask & dual_one) {
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const loop_filter_thresh *lfis[2];
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lfis[0] = lfthr + *lfl;
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lfis[1] = lfthr + *(lfl + lfl_forward);
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ss[1] = ss[0] + 8 * pitch;
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if (mask_16x16 & dual_one) {
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if ((mask_16x16 & dual_one) == dual_one) {
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vpx_lpf_vertical_16_dual(ss[0], pitch, lfis[0]->mblim, lfis[0]->lim,
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lfis[0]->hev_thr);
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} else {
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const loop_filter_thresh *lfi = lfis[!(mask_16x16 & 1)];
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vpx_lpf_vertical_16(ss[!(mask_16x16 & 1)], pitch, lfi->mblim,
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lfi->lim, lfi->hev_thr);
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}
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}
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if (mask_8x8 & dual_one) {
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if ((mask_8x8 & dual_one) == dual_one) {
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vpx_lpf_vertical_8_dual(ss[0], pitch, lfis[0]->mblim, lfis[0]->lim,
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lfis[0]->hev_thr, lfis[1]->mblim,
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lfis[1]->lim, lfis[1]->hev_thr);
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} else {
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const loop_filter_thresh *lfi = lfis[!(mask_8x8 & 1)];
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vpx_lpf_vertical_8(ss[!(mask_8x8 & 1)], pitch, lfi->mblim, lfi->lim,
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lfi->hev_thr);
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}
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}
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if (mask_4x4 & dual_one) {
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if ((mask_4x4 & dual_one) == dual_one) {
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vpx_lpf_vertical_4_dual(ss[0], pitch, lfis[0]->mblim, lfis[0]->lim,
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lfis[0]->hev_thr, lfis[1]->mblim,
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lfis[1]->lim, lfis[1]->hev_thr);
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} else {
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const loop_filter_thresh *lfi = lfis[!(mask_4x4 & 1)];
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vpx_lpf_vertical_4(ss[!(mask_4x4 & 1)], pitch, lfi->mblim, lfi->lim,
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lfi->hev_thr);
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}
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}
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if (mask_4x4_int & dual_one) {
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if ((mask_4x4_int & dual_one) == dual_one) {
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vpx_lpf_vertical_4_dual(ss[0] + 4, pitch, lfis[0]->mblim,
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lfis[0]->lim, lfis[0]->hev_thr,
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lfis[1]->mblim, lfis[1]->lim,
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lfis[1]->hev_thr);
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} else {
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const loop_filter_thresh *lfi = lfis[!(mask_4x4_int & 1)];
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vpx_lpf_vertical_4(ss[!(mask_4x4_int & 1)] + 4, pitch, lfi->mblim,
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lfi->lim, lfi->hev_thr);
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}
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}
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}
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ss[0] += 8;
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lfl += 1;
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mask_16x16 >>= 1;
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mask_8x8 >>= 1;
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mask_4x4 >>= 1;
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mask_4x4_int >>= 1;
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}
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}
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#if CONFIG_VP9_HIGHBITDEPTH
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static void highbd_filter_selectively_vert_row2(int subsampling_factor,
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uint16_t *s, int pitch,
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unsigned int mask_16x16,
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unsigned int mask_8x8,
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unsigned int mask_4x4,
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unsigned int mask_4x4_int,
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const loop_filter_thresh *lfthr,
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const uint8_t *lfl, int bd) {
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const int dual_mask_cutoff = subsampling_factor ? 0xff : 0xffff;
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const int lfl_forward = subsampling_factor ? 4 : 8;
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const unsigned int dual_one = 1 | (1 << lfl_forward);
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unsigned int mask;
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uint16_t *ss[2];
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ss[0] = s;
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for (mask =
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(mask_16x16 | mask_8x8 | mask_4x4 | mask_4x4_int) & dual_mask_cutoff;
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mask; mask = (mask & ~dual_one) >> 1) {
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if (mask & dual_one) {
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const loop_filter_thresh *lfis[2];
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lfis[0] = lfthr + *lfl;
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lfis[1] = lfthr + *(lfl + lfl_forward);
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ss[1] = ss[0] + 8 * pitch;
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if (mask_16x16 & dual_one) {
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if ((mask_16x16 & dual_one) == dual_one) {
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vpx_highbd_lpf_vertical_16_dual(ss[0], pitch, lfis[0]->mblim,
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lfis[0]->lim, lfis[0]->hev_thr, bd);
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} else {
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const loop_filter_thresh *lfi = lfis[!(mask_16x16 & 1)];
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vpx_highbd_lpf_vertical_16(ss[!(mask_16x16 & 1)], pitch, lfi->mblim,
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lfi->lim, lfi->hev_thr, bd);
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}
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}
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if (mask_8x8 & dual_one) {
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if ((mask_8x8 & dual_one) == dual_one) {
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vpx_highbd_lpf_vertical_8_dual(ss[0], pitch, lfis[0]->mblim,
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lfis[0]->lim, lfis[0]->hev_thr,
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lfis[1]->mblim, lfis[1]->lim,
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lfis[1]->hev_thr, bd);
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} else {
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const loop_filter_thresh *lfi = lfis[!(mask_8x8 & 1)];
|
|
vpx_highbd_lpf_vertical_8(ss[!(mask_8x8 & 1)], pitch, lfi->mblim,
|
|
lfi->lim, lfi->hev_thr, bd);
|
|
}
|
|
}
|
|
|
|
if (mask_4x4 & dual_one) {
|
|
if ((mask_4x4 & dual_one) == dual_one) {
|
|
vpx_highbd_lpf_vertical_4_dual(ss[0], pitch, lfis[0]->mblim,
|
|
lfis[0]->lim, lfis[0]->hev_thr,
|
|
lfis[1]->mblim, lfis[1]->lim,
|
|
lfis[1]->hev_thr, bd);
|
|
} else {
|
|
const loop_filter_thresh *lfi = lfis[!(mask_4x4 & 1)];
|
|
vpx_highbd_lpf_vertical_4(ss[!(mask_4x4 & 1)], pitch, lfi->mblim,
|
|
lfi->lim, lfi->hev_thr, bd);
|
|
}
|
|
}
|
|
|
|
if (mask_4x4_int & dual_one) {
|
|
if ((mask_4x4_int & dual_one) == dual_one) {
|
|
vpx_highbd_lpf_vertical_4_dual(ss[0] + 4, pitch, lfis[0]->mblim,
|
|
lfis[0]->lim, lfis[0]->hev_thr,
|
|
lfis[1]->mblim, lfis[1]->lim,
|
|
lfis[1]->hev_thr, bd);
|
|
} else {
|
|
const loop_filter_thresh *lfi = lfis[!(mask_4x4_int & 1)];
|
|
vpx_highbd_lpf_vertical_4(ss[!(mask_4x4_int & 1)] + 4, pitch,
|
|
lfi->mblim, lfi->lim, lfi->hev_thr, bd);
|
|
}
|
|
}
|
|
}
|
|
|
|
ss[0] += 8;
|
|
lfl += 1;
|
|
mask_16x16 >>= 1;
|
|
mask_8x8 >>= 1;
|
|
mask_4x4 >>= 1;
|
|
mask_4x4_int >>= 1;
|
|
}
|
|
}
|
|
#endif // CONFIG_VP9_HIGHBITDEPTH
|
|
|
|
static void filter_selectively_horiz(uint8_t *s, int pitch,
|
|
unsigned int mask_16x16,
|
|
unsigned int mask_8x8,
|
|
unsigned int mask_4x4,
|
|
unsigned int mask_4x4_int,
|
|
const loop_filter_thresh *lfthr,
|
|
const uint8_t *lfl) {
|
|
unsigned int mask;
|
|
int count;
|
|
|
|
for (mask = mask_16x16 | mask_8x8 | mask_4x4 | mask_4x4_int;
|
|
mask; mask >>= count) {
|
|
count = 1;
|
|
if (mask & 1) {
|
|
const loop_filter_thresh *lfi = lfthr + *lfl;
|
|
|
|
if (mask_16x16 & 1) {
|
|
if ((mask_16x16 & 3) == 3) {
|
|
vpx_lpf_horizontal_edge_16(s, pitch, lfi->mblim, lfi->lim,
|
|
lfi->hev_thr);
|
|
count = 2;
|
|
} else {
|
|
vpx_lpf_horizontal_edge_8(s, pitch, lfi->mblim, lfi->lim,
|
|
lfi->hev_thr);
|
|
}
|
|
} else if (mask_8x8 & 1) {
|
|
if ((mask_8x8 & 3) == 3) {
|
|
// Next block's thresholds.
|
|
const loop_filter_thresh *lfin = lfthr + *(lfl + 1);
|
|
|
|
vpx_lpf_horizontal_8_dual(s, pitch, lfi->mblim, lfi->lim,
|
|
lfi->hev_thr, lfin->mblim, lfin->lim,
|
|
lfin->hev_thr);
|
|
|
|
if ((mask_4x4_int & 3) == 3) {
|
|
vpx_lpf_horizontal_4_dual(s + 4 * pitch, pitch, lfi->mblim,
|
|
lfi->lim, lfi->hev_thr, lfin->mblim,
|
|
lfin->lim, lfin->hev_thr);
|
|
} else {
|
|
if (mask_4x4_int & 1)
|
|
vpx_lpf_horizontal_4(s + 4 * pitch, pitch, lfi->mblim, lfi->lim,
|
|
lfi->hev_thr);
|
|
else if (mask_4x4_int & 2)
|
|
vpx_lpf_horizontal_4(s + 8 + 4 * pitch, pitch, lfin->mblim,
|
|
lfin->lim, lfin->hev_thr);
|
|
}
|
|
count = 2;
|
|
} else {
|
|
vpx_lpf_horizontal_8(s, pitch, lfi->mblim, lfi->lim, lfi->hev_thr);
|
|
|
|
if (mask_4x4_int & 1)
|
|
vpx_lpf_horizontal_4(s + 4 * pitch, pitch, lfi->mblim, lfi->lim,
|
|
lfi->hev_thr);
|
|
}
|
|
} else if (mask_4x4 & 1) {
|
|
if ((mask_4x4 & 3) == 3) {
|
|
// Next block's thresholds.
|
|
const loop_filter_thresh *lfin = lfthr + *(lfl + 1);
|
|
|
|
vpx_lpf_horizontal_4_dual(s, pitch, lfi->mblim, lfi->lim,
|
|
lfi->hev_thr, lfin->mblim, lfin->lim,
|
|
lfin->hev_thr);
|
|
if ((mask_4x4_int & 3) == 3) {
|
|
vpx_lpf_horizontal_4_dual(s + 4 * pitch, pitch, lfi->mblim,
|
|
lfi->lim, lfi->hev_thr, lfin->mblim,
|
|
lfin->lim, lfin->hev_thr);
|
|
} else {
|
|
if (mask_4x4_int & 1)
|
|
vpx_lpf_horizontal_4(s + 4 * pitch, pitch, lfi->mblim, lfi->lim,
|
|
lfi->hev_thr);
|
|
else if (mask_4x4_int & 2)
|
|
vpx_lpf_horizontal_4(s + 8 + 4 * pitch, pitch, lfin->mblim,
|
|
lfin->lim, lfin->hev_thr);
|
|
}
|
|
count = 2;
|
|
} else {
|
|
vpx_lpf_horizontal_4(s, pitch, lfi->mblim, lfi->lim, lfi->hev_thr);
|
|
|
|
if (mask_4x4_int & 1)
|
|
vpx_lpf_horizontal_4(s + 4 * pitch, pitch, lfi->mblim, lfi->lim,
|
|
lfi->hev_thr);
|
|
}
|
|
} else {
|
|
vpx_lpf_horizontal_4(s + 4 * pitch, pitch, lfi->mblim, lfi->lim,
|
|
lfi->hev_thr);
|
|
}
|
|
}
|
|
s += 8 * count;
|
|
lfl += count;
|
|
mask_16x16 >>= count;
|
|
mask_8x8 >>= count;
|
|
mask_4x4 >>= count;
|
|
mask_4x4_int >>= count;
|
|
}
|
|
}
|
|
|
|
#if CONFIG_VP9_HIGHBITDEPTH
|
|
static void highbd_filter_selectively_horiz(uint16_t *s, int pitch,
|
|
unsigned int mask_16x16,
|
|
unsigned int mask_8x8,
|
|
unsigned int mask_4x4,
|
|
unsigned int mask_4x4_int,
|
|
const loop_filter_thresh *lfthr,
|
|
const uint8_t *lfl, int bd) {
|
|
unsigned int mask;
|
|
int count;
|
|
|
|
for (mask = mask_16x16 | mask_8x8 | mask_4x4 | mask_4x4_int;
|
|
mask; mask >>= count) {
|
|
count = 1;
|
|
if (mask & 1) {
|
|
const loop_filter_thresh *lfi = lfthr + *lfl;
|
|
|
|
if (mask_16x16 & 1) {
|
|
if ((mask_16x16 & 3) == 3) {
|
|
vpx_highbd_lpf_horizontal_edge_16(s, pitch, lfi->mblim, lfi->lim,
|
|
lfi->hev_thr, bd);
|
|
count = 2;
|
|
} else {
|
|
vpx_highbd_lpf_horizontal_edge_8(s, pitch, lfi->mblim, lfi->lim,
|
|
lfi->hev_thr, bd);
|
|
}
|
|
} else if (mask_8x8 & 1) {
|
|
if ((mask_8x8 & 3) == 3) {
|
|
// Next block's thresholds.
|
|
const loop_filter_thresh *lfin = lfthr + *(lfl + 1);
|
|
|
|
vpx_highbd_lpf_horizontal_8_dual(s, pitch, lfi->mblim, lfi->lim,
|
|
lfi->hev_thr, lfin->mblim, lfin->lim,
|
|
lfin->hev_thr, bd);
|
|
|
|
if ((mask_4x4_int & 3) == 3) {
|
|
vpx_highbd_lpf_horizontal_4_dual(s + 4 * pitch, pitch, lfi->mblim,
|
|
lfi->lim, lfi->hev_thr,
|
|
lfin->mblim, lfin->lim,
|
|
lfin->hev_thr, bd);
|
|
} else {
|
|
if (mask_4x4_int & 1) {
|
|
vpx_highbd_lpf_horizontal_4(s + 4 * pitch, pitch, lfi->mblim,
|
|
lfi->lim, lfi->hev_thr, bd);
|
|
} else if (mask_4x4_int & 2) {
|
|
vpx_highbd_lpf_horizontal_4(s + 8 + 4 * pitch, pitch, lfin->mblim,
|
|
lfin->lim, lfin->hev_thr, bd);
|
|
}
|
|
}
|
|
count = 2;
|
|
} else {
|
|
vpx_highbd_lpf_horizontal_8(s, pitch, lfi->mblim, lfi->lim,
|
|
lfi->hev_thr, bd);
|
|
|
|
if (mask_4x4_int & 1) {
|
|
vpx_highbd_lpf_horizontal_4(s + 4 * pitch, pitch, lfi->mblim,
|
|
lfi->lim, lfi->hev_thr, bd);
|
|
}
|
|
}
|
|
} else if (mask_4x4 & 1) {
|
|
if ((mask_4x4 & 3) == 3) {
|
|
// Next block's thresholds.
|
|
const loop_filter_thresh *lfin = lfthr + *(lfl + 1);
|
|
|
|
vpx_highbd_lpf_horizontal_4_dual(s, pitch, lfi->mblim, lfi->lim,
|
|
lfi->hev_thr, lfin->mblim, lfin->lim,
|
|
lfin->hev_thr, bd);
|
|
if ((mask_4x4_int & 3) == 3) {
|
|
vpx_highbd_lpf_horizontal_4_dual(s + 4 * pitch, pitch, lfi->mblim,
|
|
lfi->lim, lfi->hev_thr,
|
|
lfin->mblim, lfin->lim,
|
|
lfin->hev_thr, bd);
|
|
} else {
|
|
if (mask_4x4_int & 1) {
|
|
vpx_highbd_lpf_horizontal_4(s + 4 * pitch, pitch, lfi->mblim,
|
|
lfi->lim, lfi->hev_thr, bd);
|
|
} else if (mask_4x4_int & 2) {
|
|
vpx_highbd_lpf_horizontal_4(s + 8 + 4 * pitch, pitch, lfin->mblim,
|
|
lfin->lim, lfin->hev_thr, bd);
|
|
}
|
|
}
|
|
count = 2;
|
|
} else {
|
|
vpx_highbd_lpf_horizontal_4(s, pitch, lfi->mblim, lfi->lim,
|
|
lfi->hev_thr, bd);
|
|
|
|
if (mask_4x4_int & 1) {
|
|
vpx_highbd_lpf_horizontal_4(s + 4 * pitch, pitch, lfi->mblim,
|
|
lfi->lim, lfi->hev_thr, bd);
|
|
}
|
|
}
|
|
} else {
|
|
vpx_highbd_lpf_horizontal_4(s + 4 * pitch, pitch, lfi->mblim, lfi->lim,
|
|
lfi->hev_thr, bd);
|
|
}
|
|
}
|
|
s += 8 * count;
|
|
lfl += count;
|
|
mask_16x16 >>= count;
|
|
mask_8x8 >>= count;
|
|
mask_4x4 >>= count;
|
|
mask_4x4_int >>= count;
|
|
}
|
|
}
|
|
#endif // CONFIG_VP9_HIGHBITDEPTH
|
|
|
|
// This function ors into the current lfm structure, where to do loop
|
|
// filters for the specific mi we are looking at. It uses information
|
|
// including the block_size_type (32x16, 32x32, etc.), the transform size,
|
|
// whether there were any coefficients encoded, and the loop filter strength
|
|
// block we are currently looking at. Shift is used to position the
|
|
// 1's we produce.
|
|
static void build_masks(const loop_filter_info_n *const lfi_n,
|
|
const MODE_INFO *mi, const int shift_y,
|
|
const int shift_uv,
|
|
LOOP_FILTER_MASK *lfm) {
|
|
const BLOCK_SIZE block_size = mi->sb_type;
|
|
const TX_SIZE tx_size_y = mi->tx_size;
|
|
const TX_SIZE tx_size_uv = get_uv_tx_size_impl(tx_size_y, block_size, 1, 1);
|
|
const int filter_level = get_filter_level(lfi_n, mi);
|
|
uint64_t *const left_y = &lfm->left_y[tx_size_y];
|
|
uint64_t *const above_y = &lfm->above_y[tx_size_y];
|
|
uint64_t *const int_4x4_y = &lfm->int_4x4_y;
|
|
uint16_t *const left_uv = &lfm->left_uv[tx_size_uv];
|
|
uint16_t *const above_uv = &lfm->above_uv[tx_size_uv];
|
|
uint16_t *const int_4x4_uv = &lfm->int_4x4_uv;
|
|
int i;
|
|
|
|
// If filter level is 0 we don't loop filter.
|
|
if (!filter_level) {
|
|
return;
|
|
} else {
|
|
const int w = num_8x8_blocks_wide_lookup[block_size];
|
|
const int h = num_8x8_blocks_high_lookup[block_size];
|
|
int index = shift_y;
|
|
for (i = 0; i < h; i++) {
|
|
memset(&lfm->lfl_y[index], filter_level, w);
|
|
index += 8;
|
|
}
|
|
}
|
|
|
|
// These set 1 in the current block size for the block size edges.
|
|
// For instance if the block size is 32x16, we'll set:
|
|
// above = 1111
|
|
// 0000
|
|
// and
|
|
// left = 1000
|
|
// = 1000
|
|
// NOTE : In this example the low bit is left most ( 1000 ) is stored as
|
|
// 1, not 8...
|
|
//
|
|
// U and V set things on a 16 bit scale.
|
|
//
|
|
*above_y |= above_prediction_mask[block_size] << shift_y;
|
|
*above_uv |= above_prediction_mask_uv[block_size] << shift_uv;
|
|
*left_y |= left_prediction_mask[block_size] << shift_y;
|
|
*left_uv |= left_prediction_mask_uv[block_size] << shift_uv;
|
|
|
|
// If the block has no coefficients and is not intra we skip applying
|
|
// the loop filter on block edges.
|
|
if (mi->skip && is_inter_block(mi))
|
|
return;
|
|
|
|
// Here we are adding a mask for the transform size. The transform
|
|
// size mask is set to be correct for a 64x64 prediction block size. We
|
|
// mask to match the size of the block we are working on and then shift it
|
|
// into place..
|
|
*above_y |= (size_mask[block_size] &
|
|
above_64x64_txform_mask[tx_size_y]) << shift_y;
|
|
*above_uv |= (size_mask_uv[block_size] &
|
|
above_64x64_txform_mask_uv[tx_size_uv]) << shift_uv;
|
|
|
|
*left_y |= (size_mask[block_size] &
|
|
left_64x64_txform_mask[tx_size_y]) << shift_y;
|
|
*left_uv |= (size_mask_uv[block_size] &
|
|
left_64x64_txform_mask_uv[tx_size_uv]) << shift_uv;
|
|
|
|
// Here we are trying to determine what to do with the internal 4x4 block
|
|
// boundaries. These differ from the 4x4 boundaries on the outside edge of
|
|
// an 8x8 in that the internal ones can be skipped and don't depend on
|
|
// the prediction block size.
|
|
if (tx_size_y == TX_4X4)
|
|
*int_4x4_y |= size_mask[block_size] << shift_y;
|
|
|
|
if (tx_size_uv == TX_4X4)
|
|
*int_4x4_uv |= (size_mask_uv[block_size] & 0xffff) << shift_uv;
|
|
}
|
|
|
|
// This function does the same thing as the one above with the exception that
|
|
// it only affects the y masks. It exists because for blocks < 16x16 in size,
|
|
// we only update u and v masks on the first block.
|
|
static void build_y_mask(const loop_filter_info_n *const lfi_n,
|
|
const MODE_INFO *mi, const int shift_y,
|
|
LOOP_FILTER_MASK *lfm) {
|
|
const BLOCK_SIZE block_size = mi->sb_type;
|
|
const TX_SIZE tx_size_y = mi->tx_size;
|
|
const int filter_level = get_filter_level(lfi_n, mi);
|
|
uint64_t *const left_y = &lfm->left_y[tx_size_y];
|
|
uint64_t *const above_y = &lfm->above_y[tx_size_y];
|
|
uint64_t *const int_4x4_y = &lfm->int_4x4_y;
|
|
int i;
|
|
|
|
if (!filter_level) {
|
|
return;
|
|
} else {
|
|
const int w = num_8x8_blocks_wide_lookup[block_size];
|
|
const int h = num_8x8_blocks_high_lookup[block_size];
|
|
int index = shift_y;
|
|
for (i = 0; i < h; i++) {
|
|
memset(&lfm->lfl_y[index], filter_level, w);
|
|
index += 8;
|
|
}
|
|
}
|
|
|
|
*above_y |= above_prediction_mask[block_size] << shift_y;
|
|
*left_y |= left_prediction_mask[block_size] << shift_y;
|
|
|
|
if (mi->skip && is_inter_block(mi))
|
|
return;
|
|
|
|
*above_y |= (size_mask[block_size] &
|
|
above_64x64_txform_mask[tx_size_y]) << shift_y;
|
|
|
|
*left_y |= (size_mask[block_size] &
|
|
left_64x64_txform_mask[tx_size_y]) << shift_y;
|
|
|
|
if (tx_size_y == TX_4X4)
|
|
*int_4x4_y |= size_mask[block_size] << shift_y;
|
|
}
|
|
|
|
void vp9_adjust_mask(VP9_COMMON *const cm, const int mi_row,
|
|
const int mi_col, LOOP_FILTER_MASK *lfm) {
|
|
int i;
|
|
|
|
// The largest loopfilter we have is 16x16 so we use the 16x16 mask
|
|
// for 32x32 transforms also.
|
|
lfm->left_y[TX_16X16] |= lfm->left_y[TX_32X32];
|
|
lfm->above_y[TX_16X16] |= lfm->above_y[TX_32X32];
|
|
lfm->left_uv[TX_16X16] |= lfm->left_uv[TX_32X32];
|
|
lfm->above_uv[TX_16X16] |= lfm->above_uv[TX_32X32];
|
|
|
|
// We do at least 8 tap filter on every 32x32 even if the transform size
|
|
// is 4x4. So if the 4x4 is set on a border pixel add it to the 8x8 and
|
|
// remove it from the 4x4.
|
|
lfm->left_y[TX_8X8] |= lfm->left_y[TX_4X4] & left_border;
|
|
lfm->left_y[TX_4X4] &= ~left_border;
|
|
lfm->above_y[TX_8X8] |= lfm->above_y[TX_4X4] & above_border;
|
|
lfm->above_y[TX_4X4] &= ~above_border;
|
|
lfm->left_uv[TX_8X8] |= lfm->left_uv[TX_4X4] & left_border_uv;
|
|
lfm->left_uv[TX_4X4] &= ~left_border_uv;
|
|
lfm->above_uv[TX_8X8] |= lfm->above_uv[TX_4X4] & above_border_uv;
|
|
lfm->above_uv[TX_4X4] &= ~above_border_uv;
|
|
|
|
// We do some special edge handling.
|
|
if (mi_row + MI_BLOCK_SIZE > cm->mi_rows) {
|
|
const uint64_t rows = cm->mi_rows - mi_row;
|
|
|
|
// Each pixel inside the border gets a 1,
|
|
const uint64_t mask_y = (((uint64_t) 1 << (rows << 3)) - 1);
|
|
const uint16_t mask_uv = (((uint16_t) 1 << (((rows + 1) >> 1) << 2)) - 1);
|
|
|
|
// Remove values completely outside our border.
|
|
for (i = 0; i < TX_32X32; i++) {
|
|
lfm->left_y[i] &= mask_y;
|
|
lfm->above_y[i] &= mask_y;
|
|
lfm->left_uv[i] &= mask_uv;
|
|
lfm->above_uv[i] &= mask_uv;
|
|
}
|
|
lfm->int_4x4_y &= mask_y;
|
|
lfm->int_4x4_uv &= mask_uv;
|
|
|
|
// We don't apply a wide loop filter on the last uv block row. If set
|
|
// apply the shorter one instead.
|
|
if (rows == 1) {
|
|
lfm->above_uv[TX_8X8] |= lfm->above_uv[TX_16X16];
|
|
lfm->above_uv[TX_16X16] = 0;
|
|
}
|
|
if (rows == 5) {
|
|
lfm->above_uv[TX_8X8] |= lfm->above_uv[TX_16X16] & 0xff00;
|
|
lfm->above_uv[TX_16X16] &= ~(lfm->above_uv[TX_16X16] & 0xff00);
|
|
}
|
|
}
|
|
|
|
if (mi_col + MI_BLOCK_SIZE > cm->mi_cols) {
|
|
const uint64_t columns = cm->mi_cols - mi_col;
|
|
|
|
// Each pixel inside the border gets a 1, the multiply copies the border
|
|
// to where we need it.
|
|
const uint64_t mask_y = (((1 << columns) - 1)) * 0x0101010101010101ULL;
|
|
const uint16_t mask_uv = ((1 << ((columns + 1) >> 1)) - 1) * 0x1111;
|
|
|
|
// Internal edges are not applied on the last column of the image so
|
|
// we mask 1 more for the internal edges
|
|
const uint16_t mask_uv_int = ((1 << (columns >> 1)) - 1) * 0x1111;
|
|
|
|
// Remove the bits outside the image edge.
|
|
for (i = 0; i < TX_32X32; i++) {
|
|
lfm->left_y[i] &= mask_y;
|
|
lfm->above_y[i] &= mask_y;
|
|
lfm->left_uv[i] &= mask_uv;
|
|
lfm->above_uv[i] &= mask_uv;
|
|
}
|
|
lfm->int_4x4_y &= mask_y;
|
|
lfm->int_4x4_uv &= mask_uv_int;
|
|
|
|
// We don't apply a wide loop filter on the last uv column. If set
|
|
// apply the shorter one instead.
|
|
if (columns == 1) {
|
|
lfm->left_uv[TX_8X8] |= lfm->left_uv[TX_16X16];
|
|
lfm->left_uv[TX_16X16] = 0;
|
|
}
|
|
if (columns == 5) {
|
|
lfm->left_uv[TX_8X8] |= (lfm->left_uv[TX_16X16] & 0xcccc);
|
|
lfm->left_uv[TX_16X16] &= ~(lfm->left_uv[TX_16X16] & 0xcccc);
|
|
}
|
|
}
|
|
// We don't apply a loop filter on the first column in the image, mask that
|
|
// out.
|
|
if (mi_col == 0) {
|
|
for (i = 0; i < TX_32X32; i++) {
|
|
lfm->left_y[i] &= 0xfefefefefefefefeULL;
|
|
lfm->left_uv[i] &= 0xeeee;
|
|
}
|
|
}
|
|
|
|
// Assert if we try to apply 2 different loop filters at the same position.
|
|
assert(!(lfm->left_y[TX_16X16] & lfm->left_y[TX_8X8]));
|
|
assert(!(lfm->left_y[TX_16X16] & lfm->left_y[TX_4X4]));
|
|
assert(!(lfm->left_y[TX_8X8] & lfm->left_y[TX_4X4]));
|
|
assert(!(lfm->int_4x4_y & lfm->left_y[TX_16X16]));
|
|
assert(!(lfm->left_uv[TX_16X16]&lfm->left_uv[TX_8X8]));
|
|
assert(!(lfm->left_uv[TX_16X16] & lfm->left_uv[TX_4X4]));
|
|
assert(!(lfm->left_uv[TX_8X8] & lfm->left_uv[TX_4X4]));
|
|
assert(!(lfm->int_4x4_uv & lfm->left_uv[TX_16X16]));
|
|
assert(!(lfm->above_y[TX_16X16] & lfm->above_y[TX_8X8]));
|
|
assert(!(lfm->above_y[TX_16X16] & lfm->above_y[TX_4X4]));
|
|
assert(!(lfm->above_y[TX_8X8] & lfm->above_y[TX_4X4]));
|
|
assert(!(lfm->int_4x4_y & lfm->above_y[TX_16X16]));
|
|
assert(!(lfm->above_uv[TX_16X16] & lfm->above_uv[TX_8X8]));
|
|
assert(!(lfm->above_uv[TX_16X16] & lfm->above_uv[TX_4X4]));
|
|
assert(!(lfm->above_uv[TX_8X8] & lfm->above_uv[TX_4X4]));
|
|
assert(!(lfm->int_4x4_uv & lfm->above_uv[TX_16X16]));
|
|
}
|
|
|
|
// This function sets up the bit masks for the entire 64x64 region represented
|
|
// by mi_row, mi_col.
|
|
void vp9_setup_mask(VP9_COMMON *const cm, const int mi_row, const int mi_col,
|
|
MODE_INFO **mi, const int mode_info_stride,
|
|
LOOP_FILTER_MASK *lfm) {
|
|
int idx_32, idx_16, idx_8;
|
|
const loop_filter_info_n *const lfi_n = &cm->lf_info;
|
|
MODE_INFO **mip = mi;
|
|
MODE_INFO **mip2 = mi;
|
|
|
|
// These are offsets to the next mi in the 64x64 block. It is what gets
|
|
// added to the mi ptr as we go through each loop. It helps us to avoid
|
|
// setting up special row and column counters for each index. The last step
|
|
// brings us out back to the starting position.
|
|
const int offset_32[] = {4, (mode_info_stride << 2) - 4, 4,
|
|
-(mode_info_stride << 2) - 4};
|
|
const int offset_16[] = {2, (mode_info_stride << 1) - 2, 2,
|
|
-(mode_info_stride << 1) - 2};
|
|
const int offset[] = {1, mode_info_stride - 1, 1, -mode_info_stride - 1};
|
|
|
|
// Following variables represent shifts to position the current block
|
|
// mask over the appropriate block. A shift of 36 to the left will move
|
|
// the bits for the final 32 by 32 block in the 64x64 up 4 rows and left
|
|
// 4 rows to the appropriate spot.
|
|
const int shift_32_y[] = {0, 4, 32, 36};
|
|
const int shift_16_y[] = {0, 2, 16, 18};
|
|
const int shift_8_y[] = {0, 1, 8, 9};
|
|
const int shift_32_uv[] = {0, 2, 8, 10};
|
|
const int shift_16_uv[] = {0, 1, 4, 5};
|
|
const int max_rows = (mi_row + MI_BLOCK_SIZE > cm->mi_rows ?
|
|
cm->mi_rows - mi_row : MI_BLOCK_SIZE);
|
|
const int max_cols = (mi_col + MI_BLOCK_SIZE > cm->mi_cols ?
|
|
cm->mi_cols - mi_col : MI_BLOCK_SIZE);
|
|
|
|
vp9_zero(*lfm);
|
|
assert(mip[0] != NULL);
|
|
|
|
switch (mip[0]->sb_type) {
|
|
case BLOCK_64X64:
|
|
build_masks(lfi_n, mip[0] , 0, 0, lfm);
|
|
break;
|
|
case BLOCK_64X32:
|
|
build_masks(lfi_n, mip[0], 0, 0, lfm);
|
|
mip2 = mip + mode_info_stride * 4;
|
|
if (4 >= max_rows)
|
|
break;
|
|
build_masks(lfi_n, mip2[0], 32, 8, lfm);
|
|
break;
|
|
case BLOCK_32X64:
|
|
build_masks(lfi_n, mip[0], 0, 0, lfm);
|
|
mip2 = mip + 4;
|
|
if (4 >= max_cols)
|
|
break;
|
|
build_masks(lfi_n, mip2[0], 4, 2, lfm);
|
|
break;
|
|
default:
|
|
for (idx_32 = 0; idx_32 < 4; mip += offset_32[idx_32], ++idx_32) {
|
|
const int shift_y = shift_32_y[idx_32];
|
|
const int shift_uv = shift_32_uv[idx_32];
|
|
const int mi_32_col_offset = ((idx_32 & 1) << 2);
|
|
const int mi_32_row_offset = ((idx_32 >> 1) << 2);
|
|
if (mi_32_col_offset >= max_cols || mi_32_row_offset >= max_rows)
|
|
continue;
|
|
switch (mip[0]->sb_type) {
|
|
case BLOCK_32X32:
|
|
build_masks(lfi_n, mip[0], shift_y, shift_uv, lfm);
|
|
break;
|
|
case BLOCK_32X16:
|
|
build_masks(lfi_n, mip[0], shift_y, shift_uv, lfm);
|
|
if (mi_32_row_offset + 2 >= max_rows)
|
|
continue;
|
|
mip2 = mip + mode_info_stride * 2;
|
|
build_masks(lfi_n, mip2[0], shift_y + 16, shift_uv + 4, lfm);
|
|
break;
|
|
case BLOCK_16X32:
|
|
build_masks(lfi_n, mip[0], shift_y, shift_uv, lfm);
|
|
if (mi_32_col_offset + 2 >= max_cols)
|
|
continue;
|
|
mip2 = mip + 2;
|
|
build_masks(lfi_n, mip2[0], shift_y + 2, shift_uv + 1, lfm);
|
|
break;
|
|
default:
|
|
for (idx_16 = 0; idx_16 < 4; mip += offset_16[idx_16], ++idx_16) {
|
|
const int shift_y = shift_32_y[idx_32] + shift_16_y[idx_16];
|
|
const int shift_uv = shift_32_uv[idx_32] + shift_16_uv[idx_16];
|
|
const int mi_16_col_offset = mi_32_col_offset +
|
|
((idx_16 & 1) << 1);
|
|
const int mi_16_row_offset = mi_32_row_offset +
|
|
((idx_16 >> 1) << 1);
|
|
|
|
if (mi_16_col_offset >= max_cols || mi_16_row_offset >= max_rows)
|
|
continue;
|
|
|
|
switch (mip[0]->sb_type) {
|
|
case BLOCK_16X16:
|
|
build_masks(lfi_n, mip[0], shift_y, shift_uv, lfm);
|
|
break;
|
|
case BLOCK_16X8:
|
|
build_masks(lfi_n, mip[0], shift_y, shift_uv, lfm);
|
|
if (mi_16_row_offset + 1 >= max_rows)
|
|
continue;
|
|
mip2 = mip + mode_info_stride;
|
|
build_y_mask(lfi_n, mip2[0], shift_y+8, lfm);
|
|
break;
|
|
case BLOCK_8X16:
|
|
build_masks(lfi_n, mip[0], shift_y, shift_uv, lfm);
|
|
if (mi_16_col_offset +1 >= max_cols)
|
|
continue;
|
|
mip2 = mip + 1;
|
|
build_y_mask(lfi_n, mip2[0], shift_y+1, lfm);
|
|
break;
|
|
default: {
|
|
const int shift_y = shift_32_y[idx_32] +
|
|
shift_16_y[idx_16] +
|
|
shift_8_y[0];
|
|
build_masks(lfi_n, mip[0], shift_y, shift_uv, lfm);
|
|
mip += offset[0];
|
|
for (idx_8 = 1; idx_8 < 4; mip += offset[idx_8], ++idx_8) {
|
|
const int shift_y = shift_32_y[idx_32] +
|
|
shift_16_y[idx_16] +
|
|
shift_8_y[idx_8];
|
|
const int mi_8_col_offset = mi_16_col_offset +
|
|
((idx_8 & 1));
|
|
const int mi_8_row_offset = mi_16_row_offset +
|
|
((idx_8 >> 1));
|
|
|
|
if (mi_8_col_offset >= max_cols ||
|
|
mi_8_row_offset >= max_rows)
|
|
continue;
|
|
build_y_mask(lfi_n, mip[0], shift_y, lfm);
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void filter_selectively_vert(uint8_t *s, int pitch,
|
|
unsigned int mask_16x16,
|
|
unsigned int mask_8x8,
|
|
unsigned int mask_4x4,
|
|
unsigned int mask_4x4_int,
|
|
const loop_filter_thresh *lfthr,
|
|
const uint8_t *lfl) {
|
|
unsigned int mask;
|
|
|
|
for (mask = mask_16x16 | mask_8x8 | mask_4x4 | mask_4x4_int;
|
|
mask; mask >>= 1) {
|
|
const loop_filter_thresh *lfi = lfthr + *lfl;
|
|
|
|
if (mask & 1) {
|
|
if (mask_16x16 & 1) {
|
|
vpx_lpf_vertical_16(s, pitch, lfi->mblim, lfi->lim, lfi->hev_thr);
|
|
} else if (mask_8x8 & 1) {
|
|
vpx_lpf_vertical_8(s, pitch, lfi->mblim, lfi->lim, lfi->hev_thr);
|
|
} else if (mask_4x4 & 1) {
|
|
vpx_lpf_vertical_4(s, pitch, lfi->mblim, lfi->lim, lfi->hev_thr);
|
|
}
|
|
}
|
|
if (mask_4x4_int & 1)
|
|
vpx_lpf_vertical_4(s + 4, pitch, lfi->mblim, lfi->lim, lfi->hev_thr);
|
|
s += 8;
|
|
lfl += 1;
|
|
mask_16x16 >>= 1;
|
|
mask_8x8 >>= 1;
|
|
mask_4x4 >>= 1;
|
|
mask_4x4_int >>= 1;
|
|
}
|
|
}
|
|
|
|
#if CONFIG_VP9_HIGHBITDEPTH
|
|
static void highbd_filter_selectively_vert(uint16_t *s, int pitch,
|
|
unsigned int mask_16x16,
|
|
unsigned int mask_8x8,
|
|
unsigned int mask_4x4,
|
|
unsigned int mask_4x4_int,
|
|
const loop_filter_thresh *lfthr,
|
|
const uint8_t *lfl, int bd) {
|
|
unsigned int mask;
|
|
|
|
for (mask = mask_16x16 | mask_8x8 | mask_4x4 | mask_4x4_int;
|
|
mask; mask >>= 1) {
|
|
const loop_filter_thresh *lfi = lfthr + *lfl;
|
|
|
|
if (mask & 1) {
|
|
if (mask_16x16 & 1) {
|
|
vpx_highbd_lpf_vertical_16(s, pitch, lfi->mblim, lfi->lim,
|
|
lfi->hev_thr, bd);
|
|
} else if (mask_8x8 & 1) {
|
|
vpx_highbd_lpf_vertical_8(s, pitch, lfi->mblim, lfi->lim,
|
|
lfi->hev_thr, bd);
|
|
} else if (mask_4x4 & 1) {
|
|
vpx_highbd_lpf_vertical_4(s, pitch, lfi->mblim, lfi->lim,
|
|
lfi->hev_thr, bd);
|
|
}
|
|
}
|
|
if (mask_4x4_int & 1)
|
|
vpx_highbd_lpf_vertical_4(s + 4, pitch, lfi->mblim, lfi->lim,
|
|
lfi->hev_thr, bd);
|
|
s += 8;
|
|
lfl += 1;
|
|
mask_16x16 >>= 1;
|
|
mask_8x8 >>= 1;
|
|
mask_4x4 >>= 1;
|
|
mask_4x4_int >>= 1;
|
|
}
|
|
}
|
|
#endif // CONFIG_VP9_HIGHBITDEPTH
|
|
|
|
void vp9_filter_block_plane_non420(VP9_COMMON *cm,
|
|
struct macroblockd_plane *plane,
|
|
MODE_INFO **mi_8x8,
|
|
int mi_row, int mi_col) {
|
|
const int ss_x = plane->subsampling_x;
|
|
const int ss_y = plane->subsampling_y;
|
|
const int row_step = 1 << ss_y;
|
|
const int col_step = 1 << ss_x;
|
|
const int row_step_stride = cm->mi_stride * row_step;
|
|
struct buf_2d *const dst = &plane->dst;
|
|
uint8_t* const dst0 = dst->buf;
|
|
unsigned int mask_16x16[MI_BLOCK_SIZE] = {0};
|
|
unsigned int mask_8x8[MI_BLOCK_SIZE] = {0};
|
|
unsigned int mask_4x4[MI_BLOCK_SIZE] = {0};
|
|
unsigned int mask_4x4_int[MI_BLOCK_SIZE] = {0};
|
|
uint8_t lfl[MI_BLOCK_SIZE * MI_BLOCK_SIZE];
|
|
int r, c;
|
|
|
|
for (r = 0; r < MI_BLOCK_SIZE && mi_row + r < cm->mi_rows; r += row_step) {
|
|
unsigned int mask_16x16_c = 0;
|
|
unsigned int mask_8x8_c = 0;
|
|
unsigned int mask_4x4_c = 0;
|
|
unsigned int border_mask;
|
|
|
|
// Determine the vertical edges that need filtering
|
|
for (c = 0; c < MI_BLOCK_SIZE && mi_col + c < cm->mi_cols; c += col_step) {
|
|
const MODE_INFO *mi = mi_8x8[c];
|
|
const BLOCK_SIZE sb_type = mi[0].sb_type;
|
|
const int skip_this = mi[0].skip && is_inter_block(mi);
|
|
// left edge of current unit is block/partition edge -> no skip
|
|
const int block_edge_left = (num_4x4_blocks_wide_lookup[sb_type] > 1) ?
|
|
!(c & (num_8x8_blocks_wide_lookup[sb_type] - 1)) : 1;
|
|
const int skip_this_c = skip_this && !block_edge_left;
|
|
// top edge of current unit is block/partition edge -> no skip
|
|
const int block_edge_above = (num_4x4_blocks_high_lookup[sb_type] > 1) ?
|
|
!(r & (num_8x8_blocks_high_lookup[sb_type] - 1)) : 1;
|
|
const int skip_this_r = skip_this && !block_edge_above;
|
|
const TX_SIZE tx_size = get_uv_tx_size(mi, plane);
|
|
const int skip_border_4x4_c = ss_x && mi_col + c == cm->mi_cols - 1;
|
|
const int skip_border_4x4_r = ss_y && mi_row + r == cm->mi_rows - 1;
|
|
|
|
// Filter level can vary per MI
|
|
if (!(lfl[(r << 3) + (c >> ss_x)] =
|
|
get_filter_level(&cm->lf_info, mi)))
|
|
continue;
|
|
|
|
// Build masks based on the transform size of each block
|
|
if (tx_size == TX_32X32) {
|
|
if (!skip_this_c && ((c >> ss_x) & 3) == 0) {
|
|
if (!skip_border_4x4_c)
|
|
mask_16x16_c |= 1 << (c >> ss_x);
|
|
else
|
|
mask_8x8_c |= 1 << (c >> ss_x);
|
|
}
|
|
if (!skip_this_r && ((r >> ss_y) & 3) == 0) {
|
|
if (!skip_border_4x4_r)
|
|
mask_16x16[r] |= 1 << (c >> ss_x);
|
|
else
|
|
mask_8x8[r] |= 1 << (c >> ss_x);
|
|
}
|
|
} else if (tx_size == TX_16X16) {
|
|
if (!skip_this_c && ((c >> ss_x) & 1) == 0) {
|
|
if (!skip_border_4x4_c)
|
|
mask_16x16_c |= 1 << (c >> ss_x);
|
|
else
|
|
mask_8x8_c |= 1 << (c >> ss_x);
|
|
}
|
|
if (!skip_this_r && ((r >> ss_y) & 1) == 0) {
|
|
if (!skip_border_4x4_r)
|
|
mask_16x16[r] |= 1 << (c >> ss_x);
|
|
else
|
|
mask_8x8[r] |= 1 << (c >> ss_x);
|
|
}
|
|
} else {
|
|
// force 8x8 filtering on 32x32 boundaries
|
|
if (!skip_this_c) {
|
|
if (tx_size == TX_8X8 || ((c >> ss_x) & 3) == 0)
|
|
mask_8x8_c |= 1 << (c >> ss_x);
|
|
else
|
|
mask_4x4_c |= 1 << (c >> ss_x);
|
|
}
|
|
|
|
if (!skip_this_r) {
|
|
if (tx_size == TX_8X8 || ((r >> ss_y) & 3) == 0)
|
|
mask_8x8[r] |= 1 << (c >> ss_x);
|
|
else
|
|
mask_4x4[r] |= 1 << (c >> ss_x);
|
|
}
|
|
|
|
if (!skip_this && tx_size < TX_8X8 && !skip_border_4x4_c)
|
|
mask_4x4_int[r] |= 1 << (c >> ss_x);
|
|
}
|
|
}
|
|
|
|
// Disable filtering on the leftmost column
|
|
border_mask = ~(mi_col == 0);
|
|
#if CONFIG_VP9_HIGHBITDEPTH
|
|
if (cm->use_highbitdepth) {
|
|
highbd_filter_selectively_vert(CONVERT_TO_SHORTPTR(dst->buf),
|
|
dst->stride,
|
|
mask_16x16_c & border_mask,
|
|
mask_8x8_c & border_mask,
|
|
mask_4x4_c & border_mask,
|
|
mask_4x4_int[r],
|
|
cm->lf_info.lfthr, &lfl[r << 3],
|
|
(int)cm->bit_depth);
|
|
} else {
|
|
#endif // CONFIG_VP9_HIGHBITDEPTH
|
|
filter_selectively_vert(dst->buf, dst->stride,
|
|
mask_16x16_c & border_mask,
|
|
mask_8x8_c & border_mask,
|
|
mask_4x4_c & border_mask,
|
|
mask_4x4_int[r],
|
|
cm->lf_info.lfthr, &lfl[r << 3]);
|
|
#if CONFIG_VP9_HIGHBITDEPTH
|
|
}
|
|
#endif // CONFIG_VP9_HIGHBITDEPTH
|
|
dst->buf += 8 * dst->stride;
|
|
mi_8x8 += row_step_stride;
|
|
}
|
|
|
|
// Now do horizontal pass
|
|
dst->buf = dst0;
|
|
for (r = 0; r < MI_BLOCK_SIZE && mi_row + r < cm->mi_rows; r += row_step) {
|
|
const int skip_border_4x4_r = ss_y && mi_row + r == cm->mi_rows - 1;
|
|
const unsigned int mask_4x4_int_r = skip_border_4x4_r ? 0 : mask_4x4_int[r];
|
|
|
|
unsigned int mask_16x16_r;
|
|
unsigned int mask_8x8_r;
|
|
unsigned int mask_4x4_r;
|
|
|
|
if (mi_row + r == 0) {
|
|
mask_16x16_r = 0;
|
|
mask_8x8_r = 0;
|
|
mask_4x4_r = 0;
|
|
} else {
|
|
mask_16x16_r = mask_16x16[r];
|
|
mask_8x8_r = mask_8x8[r];
|
|
mask_4x4_r = mask_4x4[r];
|
|
}
|
|
#if CONFIG_VP9_HIGHBITDEPTH
|
|
if (cm->use_highbitdepth) {
|
|
highbd_filter_selectively_horiz(CONVERT_TO_SHORTPTR(dst->buf),
|
|
dst->stride,
|
|
mask_16x16_r,
|
|
mask_8x8_r,
|
|
mask_4x4_r,
|
|
mask_4x4_int_r,
|
|
cm->lf_info.lfthr, &lfl[r << 3],
|
|
(int)cm->bit_depth);
|
|
} else {
|
|
#endif // CONFIG_VP9_HIGHBITDEPTH
|
|
filter_selectively_horiz(dst->buf, dst->stride,
|
|
mask_16x16_r,
|
|
mask_8x8_r,
|
|
mask_4x4_r,
|
|
mask_4x4_int_r,
|
|
cm->lf_info.lfthr, &lfl[r << 3]);
|
|
#if CONFIG_VP9_HIGHBITDEPTH
|
|
}
|
|
#endif // CONFIG_VP9_HIGHBITDEPTH
|
|
dst->buf += 8 * dst->stride;
|
|
}
|
|
}
|
|
|
|
void vp9_filter_block_plane_ss00(VP9_COMMON *const cm,
|
|
struct macroblockd_plane *const plane,
|
|
int mi_row,
|
|
LOOP_FILTER_MASK *lfm) {
|
|
struct buf_2d *const dst = &plane->dst;
|
|
uint8_t *const dst0 = dst->buf;
|
|
int r;
|
|
uint64_t mask_16x16 = lfm->left_y[TX_16X16];
|
|
uint64_t mask_8x8 = lfm->left_y[TX_8X8];
|
|
uint64_t mask_4x4 = lfm->left_y[TX_4X4];
|
|
uint64_t mask_4x4_int = lfm->int_4x4_y;
|
|
|
|
assert(plane->subsampling_x == 0 && plane->subsampling_y == 0);
|
|
|
|
// Vertical pass: do 2 rows at one time
|
|
for (r = 0; r < MI_BLOCK_SIZE && mi_row + r < cm->mi_rows; r += 2) {
|
|
// Disable filtering on the leftmost column.
|
|
#if CONFIG_VP9_HIGHBITDEPTH
|
|
if (cm->use_highbitdepth) {
|
|
highbd_filter_selectively_vert_row2(plane->subsampling_x,
|
|
CONVERT_TO_SHORTPTR(dst->buf),
|
|
dst->stride,
|
|
(unsigned int)mask_16x16,
|
|
(unsigned int)mask_8x8,
|
|
(unsigned int)mask_4x4,
|
|
(unsigned int)mask_4x4_int,
|
|
cm->lf_info.lfthr,
|
|
&lfm->lfl_y[r << 3],
|
|
(int)cm->bit_depth);
|
|
} else {
|
|
#endif // CONFIG_VP9_HIGHBITDEPTH
|
|
filter_selectively_vert_row2(plane->subsampling_x, dst->buf, dst->stride,
|
|
(unsigned int)mask_16x16,
|
|
(unsigned int)mask_8x8,
|
|
(unsigned int)mask_4x4,
|
|
(unsigned int)mask_4x4_int,
|
|
cm->lf_info.lfthr, &lfm->lfl_y[r << 3]);
|
|
#if CONFIG_VP9_HIGHBITDEPTH
|
|
}
|
|
#endif // CONFIG_VP9_HIGHBITDEPTH
|
|
dst->buf += 16 * dst->stride;
|
|
mask_16x16 >>= 16;
|
|
mask_8x8 >>= 16;
|
|
mask_4x4 >>= 16;
|
|
mask_4x4_int >>= 16;
|
|
}
|
|
|
|
// Horizontal pass
|
|
dst->buf = dst0;
|
|
mask_16x16 = lfm->above_y[TX_16X16];
|
|
mask_8x8 = lfm->above_y[TX_8X8];
|
|
mask_4x4 = lfm->above_y[TX_4X4];
|
|
mask_4x4_int = lfm->int_4x4_y;
|
|
|
|
for (r = 0; r < MI_BLOCK_SIZE && mi_row + r < cm->mi_rows; r++) {
|
|
unsigned int mask_16x16_r;
|
|
unsigned int mask_8x8_r;
|
|
unsigned int mask_4x4_r;
|
|
|
|
if (mi_row + r == 0) {
|
|
mask_16x16_r = 0;
|
|
mask_8x8_r = 0;
|
|
mask_4x4_r = 0;
|
|
} else {
|
|
mask_16x16_r = mask_16x16 & 0xff;
|
|
mask_8x8_r = mask_8x8 & 0xff;
|
|
mask_4x4_r = mask_4x4 & 0xff;
|
|
}
|
|
|
|
#if CONFIG_VP9_HIGHBITDEPTH
|
|
if (cm->use_highbitdepth) {
|
|
highbd_filter_selectively_horiz(CONVERT_TO_SHORTPTR(dst->buf),
|
|
dst->stride, mask_16x16_r, mask_8x8_r,
|
|
mask_4x4_r, mask_4x4_int & 0xff,
|
|
cm->lf_info.lfthr, &lfm->lfl_y[r << 3],
|
|
(int)cm->bit_depth);
|
|
} else {
|
|
#endif // CONFIG_VP9_HIGHBITDEPTH
|
|
filter_selectively_horiz(dst->buf, dst->stride, mask_16x16_r, mask_8x8_r,
|
|
mask_4x4_r, mask_4x4_int & 0xff,
|
|
cm->lf_info.lfthr, &lfm->lfl_y[r << 3]);
|
|
#if CONFIG_VP9_HIGHBITDEPTH
|
|
}
|
|
#endif // CONFIG_VP9_HIGHBITDEPTH
|
|
|
|
dst->buf += 8 * dst->stride;
|
|
mask_16x16 >>= 8;
|
|
mask_8x8 >>= 8;
|
|
mask_4x4 >>= 8;
|
|
mask_4x4_int >>= 8;
|
|
}
|
|
}
|
|
|
|
void vp9_filter_block_plane_ss11(VP9_COMMON *const cm,
|
|
struct macroblockd_plane *const plane,
|
|
int mi_row,
|
|
LOOP_FILTER_MASK *lfm) {
|
|
struct buf_2d *const dst = &plane->dst;
|
|
uint8_t *const dst0 = dst->buf;
|
|
int r, c;
|
|
uint8_t lfl_uv[16];
|
|
|
|
uint16_t mask_16x16 = lfm->left_uv[TX_16X16];
|
|
uint16_t mask_8x8 = lfm->left_uv[TX_8X8];
|
|
uint16_t mask_4x4 = lfm->left_uv[TX_4X4];
|
|
uint16_t mask_4x4_int = lfm->int_4x4_uv;
|
|
|
|
assert(plane->subsampling_x == 1 && plane->subsampling_y == 1);
|
|
|
|
// Vertical pass: do 2 rows at one time
|
|
for (r = 0; r < MI_BLOCK_SIZE && mi_row + r < cm->mi_rows; r += 4) {
|
|
for (c = 0; c < (MI_BLOCK_SIZE >> 1); c++) {
|
|
lfl_uv[(r << 1) + c] = lfm->lfl_y[(r << 3) + (c << 1)];
|
|
lfl_uv[((r + 2) << 1) + c] = lfm->lfl_y[((r + 2) << 3) + (c << 1)];
|
|
}
|
|
|
|
// Disable filtering on the leftmost column.
|
|
#if CONFIG_VP9_HIGHBITDEPTH
|
|
if (cm->use_highbitdepth) {
|
|
highbd_filter_selectively_vert_row2(plane->subsampling_x,
|
|
CONVERT_TO_SHORTPTR(dst->buf),
|
|
dst->stride,
|
|
(unsigned int)mask_16x16,
|
|
(unsigned int)mask_8x8,
|
|
(unsigned int)mask_4x4,
|
|
(unsigned int)mask_4x4_int,
|
|
cm->lf_info.lfthr, &lfl_uv[r << 1],
|
|
(int)cm->bit_depth);
|
|
} else {
|
|
#endif // CONFIG_VP9_HIGHBITDEPTH
|
|
filter_selectively_vert_row2(plane->subsampling_x, dst->buf, dst->stride,
|
|
(unsigned int)mask_16x16,
|
|
(unsigned int)mask_8x8,
|
|
(unsigned int)mask_4x4,
|
|
(unsigned int)mask_4x4_int,
|
|
cm->lf_info.lfthr, &lfl_uv[r << 1]);
|
|
#if CONFIG_VP9_HIGHBITDEPTH
|
|
}
|
|
#endif // CONFIG_VP9_HIGHBITDEPTH
|
|
|
|
dst->buf += 16 * dst->stride;
|
|
mask_16x16 >>= 8;
|
|
mask_8x8 >>= 8;
|
|
mask_4x4 >>= 8;
|
|
mask_4x4_int >>= 8;
|
|
}
|
|
|
|
// Horizontal pass
|
|
dst->buf = dst0;
|
|
mask_16x16 = lfm->above_uv[TX_16X16];
|
|
mask_8x8 = lfm->above_uv[TX_8X8];
|
|
mask_4x4 = lfm->above_uv[TX_4X4];
|
|
mask_4x4_int = lfm->int_4x4_uv;
|
|
|
|
for (r = 0; r < MI_BLOCK_SIZE && mi_row + r < cm->mi_rows; r += 2) {
|
|
const int skip_border_4x4_r = mi_row + r == cm->mi_rows - 1;
|
|
const unsigned int mask_4x4_int_r =
|
|
skip_border_4x4_r ? 0 : (mask_4x4_int & 0xf);
|
|
unsigned int mask_16x16_r;
|
|
unsigned int mask_8x8_r;
|
|
unsigned int mask_4x4_r;
|
|
|
|
if (mi_row + r == 0) {
|
|
mask_16x16_r = 0;
|
|
mask_8x8_r = 0;
|
|
mask_4x4_r = 0;
|
|
} else {
|
|
mask_16x16_r = mask_16x16 & 0xf;
|
|
mask_8x8_r = mask_8x8 & 0xf;
|
|
mask_4x4_r = mask_4x4 & 0xf;
|
|
}
|
|
|
|
#if CONFIG_VP9_HIGHBITDEPTH
|
|
if (cm->use_highbitdepth) {
|
|
highbd_filter_selectively_horiz(CONVERT_TO_SHORTPTR(dst->buf),
|
|
dst->stride, mask_16x16_r, mask_8x8_r,
|
|
mask_4x4_r, mask_4x4_int_r,
|
|
cm->lf_info.lfthr, &lfl_uv[r << 1],
|
|
(int)cm->bit_depth);
|
|
} else {
|
|
#endif // CONFIG_VP9_HIGHBITDEPTH
|
|
filter_selectively_horiz(dst->buf, dst->stride, mask_16x16_r, mask_8x8_r,
|
|
mask_4x4_r, mask_4x4_int_r, cm->lf_info.lfthr,
|
|
&lfl_uv[r << 1]);
|
|
#if CONFIG_VP9_HIGHBITDEPTH
|
|
}
|
|
#endif // CONFIG_VP9_HIGHBITDEPTH
|
|
|
|
dst->buf += 8 * dst->stride;
|
|
mask_16x16 >>= 4;
|
|
mask_8x8 >>= 4;
|
|
mask_4x4 >>= 4;
|
|
mask_4x4_int >>= 4;
|
|
}
|
|
}
|
|
|
|
static void loop_filter_rows(YV12_BUFFER_CONFIG *frame_buffer, VP9_COMMON *cm,
|
|
struct macroblockd_plane planes[MAX_MB_PLANE],
|
|
int start, int stop, int y_only) {
|
|
const int num_planes = y_only ? 1 : MAX_MB_PLANE;
|
|
enum lf_path path;
|
|
int mi_row, mi_col;
|
|
|
|
if (y_only)
|
|
path = LF_PATH_444;
|
|
else if (planes[1].subsampling_y == 1 && planes[1].subsampling_x == 1)
|
|
path = LF_PATH_420;
|
|
else if (planes[1].subsampling_y == 0 && planes[1].subsampling_x == 0)
|
|
path = LF_PATH_444;
|
|
else
|
|
path = LF_PATH_SLOW;
|
|
|
|
for (mi_row = start; mi_row < stop; mi_row += MI_BLOCK_SIZE) {
|
|
MODE_INFO **mi = cm->mi_grid_visible + mi_row * cm->mi_stride;
|
|
LOOP_FILTER_MASK *lfm = get_lfm(&cm->lf, mi_row, 0);
|
|
|
|
for (mi_col = 0; mi_col < cm->mi_cols; mi_col += MI_BLOCK_SIZE, ++lfm) {
|
|
int plane;
|
|
|
|
vp9_setup_dst_planes(planes, frame_buffer, mi_row, mi_col);
|
|
|
|
// TODO(jimbankoski): For 444 only need to do y mask.
|
|
vp9_adjust_mask(cm, mi_row, mi_col, lfm);
|
|
|
|
vp9_filter_block_plane_ss00(cm, &planes[0], mi_row, lfm);
|
|
for (plane = 1; plane < num_planes; ++plane) {
|
|
switch (path) {
|
|
case LF_PATH_420:
|
|
vp9_filter_block_plane_ss11(cm, &planes[plane], mi_row, lfm);
|
|
break;
|
|
case LF_PATH_444:
|
|
vp9_filter_block_plane_ss00(cm, &planes[plane], mi_row, lfm);
|
|
break;
|
|
case LF_PATH_SLOW:
|
|
vp9_filter_block_plane_non420(cm, &planes[plane], mi + mi_col,
|
|
mi_row, mi_col);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void vp9_loop_filter_frame(YV12_BUFFER_CONFIG *frame,
|
|
VP9_COMMON *cm, MACROBLOCKD *xd,
|
|
int frame_filter_level,
|
|
int y_only, int partial_frame) {
|
|
int start_mi_row, end_mi_row, mi_rows_to_filter;
|
|
if (!frame_filter_level) return;
|
|
start_mi_row = 0;
|
|
mi_rows_to_filter = cm->mi_rows;
|
|
if (partial_frame && cm->mi_rows > 8) {
|
|
start_mi_row = cm->mi_rows >> 1;
|
|
start_mi_row &= 0xfffffff8;
|
|
mi_rows_to_filter = VPXMAX(cm->mi_rows / 8, 8);
|
|
}
|
|
end_mi_row = start_mi_row + mi_rows_to_filter;
|
|
loop_filter_rows(frame, cm, xd->plane, start_mi_row, end_mi_row, y_only);
|
|
}
|
|
|
|
// Used by the encoder to build the loopfilter masks.
|
|
// TODO(slavarnway): Do the encoder the same way the decoder does it and
|
|
// build the masks in line as part of the encode process.
|
|
void vp9_build_mask_frame(VP9_COMMON *cm, int frame_filter_level,
|
|
int partial_frame) {
|
|
int start_mi_row, end_mi_row, mi_rows_to_filter;
|
|
int mi_col, mi_row;
|
|
if (!frame_filter_level) return;
|
|
start_mi_row = 0;
|
|
mi_rows_to_filter = cm->mi_rows;
|
|
if (partial_frame && cm->mi_rows > 8) {
|
|
start_mi_row = cm->mi_rows >> 1;
|
|
start_mi_row &= 0xfffffff8;
|
|
mi_rows_to_filter = VPXMAX(cm->mi_rows / 8, 8);
|
|
}
|
|
end_mi_row = start_mi_row + mi_rows_to_filter;
|
|
|
|
vp9_loop_filter_frame_init(cm, frame_filter_level);
|
|
|
|
for (mi_row = start_mi_row; mi_row < end_mi_row; mi_row += MI_BLOCK_SIZE) {
|
|
MODE_INFO **mi = cm->mi_grid_visible + mi_row * cm->mi_stride;
|
|
for (mi_col = 0; mi_col < cm->mi_cols; mi_col += MI_BLOCK_SIZE) {
|
|
// vp9_setup_mask() zeros lfm
|
|
vp9_setup_mask(cm, mi_row, mi_col, mi + mi_col, cm->mi_stride,
|
|
get_lfm(&cm->lf, mi_row, mi_col));
|
|
}
|
|
}
|
|
}
|
|
|
|
// 8x8 blocks in a superblock. A "1" represents the first block in a 16x16
|
|
// or greater area.
|
|
static const uint8_t first_block_in_16x16[8][8] = {
|
|
{1, 0, 1, 0, 1, 0, 1, 0},
|
|
{0, 0, 0, 0, 0, 0, 0, 0},
|
|
{1, 0, 1, 0, 1, 0, 1, 0},
|
|
{0, 0, 0, 0, 0, 0, 0, 0},
|
|
{1, 0, 1, 0, 1, 0, 1, 0},
|
|
{0, 0, 0, 0, 0, 0, 0, 0},
|
|
{1, 0, 1, 0, 1, 0, 1, 0},
|
|
{0, 0, 0, 0, 0, 0, 0, 0}
|
|
};
|
|
|
|
// This function sets up the bit masks for a block represented
|
|
// by mi_row, mi_col in a 64x64 region.
|
|
// TODO(SJL): This function only works for yv12.
|
|
void vp9_build_mask(VP9_COMMON *cm, const MODE_INFO *mi, int mi_row,
|
|
int mi_col, int bw, int bh) {
|
|
const BLOCK_SIZE block_size = mi->sb_type;
|
|
const TX_SIZE tx_size_y = mi->tx_size;
|
|
const loop_filter_info_n *const lfi_n = &cm->lf_info;
|
|
const int filter_level = get_filter_level(lfi_n, mi);
|
|
const TX_SIZE tx_size_uv = get_uv_tx_size_impl(tx_size_y, block_size, 1, 1);
|
|
LOOP_FILTER_MASK *const lfm = get_lfm(&cm->lf, mi_row, mi_col);
|
|
uint64_t *const left_y = &lfm->left_y[tx_size_y];
|
|
uint64_t *const above_y = &lfm->above_y[tx_size_y];
|
|
uint64_t *const int_4x4_y = &lfm->int_4x4_y;
|
|
uint16_t *const left_uv = &lfm->left_uv[tx_size_uv];
|
|
uint16_t *const above_uv = &lfm->above_uv[tx_size_uv];
|
|
uint16_t *const int_4x4_uv = &lfm->int_4x4_uv;
|
|
const int row_in_sb = (mi_row & 7);
|
|
const int col_in_sb = (mi_col & 7);
|
|
const int shift_y = col_in_sb + (row_in_sb << 3);
|
|
const int shift_uv = (col_in_sb >> 1) + ((row_in_sb >> 1) << 2);
|
|
const int build_uv = first_block_in_16x16[row_in_sb][col_in_sb];
|
|
|
|
if (!filter_level) {
|
|
return;
|
|
} else {
|
|
int index = shift_y;
|
|
int i;
|
|
for (i = 0; i < bh; i++) {
|
|
memset(&lfm->lfl_y[index], filter_level, bw);
|
|
index += 8;
|
|
}
|
|
}
|
|
|
|
// These set 1 in the current block size for the block size edges.
|
|
// For instance if the block size is 32x16, we'll set:
|
|
// above = 1111
|
|
// 0000
|
|
// and
|
|
// left = 1000
|
|
// = 1000
|
|
// NOTE : In this example the low bit is left most ( 1000 ) is stored as
|
|
// 1, not 8...
|
|
//
|
|
// U and V set things on a 16 bit scale.
|
|
//
|
|
*above_y |= above_prediction_mask[block_size] << shift_y;
|
|
*left_y |= left_prediction_mask[block_size] << shift_y;
|
|
|
|
if (build_uv) {
|
|
*above_uv |= above_prediction_mask_uv[block_size] << shift_uv;
|
|
*left_uv |= left_prediction_mask_uv[block_size] << shift_uv;
|
|
}
|
|
|
|
// If the block has no coefficients and is not intra we skip applying
|
|
// the loop filter on block edges.
|
|
if (mi->skip && is_inter_block(mi))
|
|
return;
|
|
|
|
// Add a mask for the transform size. The transform size mask is set to
|
|
// be correct for a 64x64 prediction block size. Mask to match the size of
|
|
// the block we are working on and then shift it into place.
|
|
*above_y |= (size_mask[block_size] &
|
|
above_64x64_txform_mask[tx_size_y]) << shift_y;
|
|
*left_y |= (size_mask[block_size] &
|
|
left_64x64_txform_mask[tx_size_y]) << shift_y;
|
|
|
|
if (build_uv) {
|
|
*above_uv |= (size_mask_uv[block_size] &
|
|
above_64x64_txform_mask_uv[tx_size_uv]) << shift_uv;
|
|
|
|
*left_uv |= (size_mask_uv[block_size] &
|
|
left_64x64_txform_mask_uv[tx_size_uv]) << shift_uv;
|
|
}
|
|
|
|
// Try to determine what to do with the internal 4x4 block boundaries. These
|
|
// differ from the 4x4 boundaries on the outside edge of an 8x8 in that the
|
|
// internal ones can be skipped and don't depend on the prediction block size.
|
|
if (tx_size_y == TX_4X4)
|
|
*int_4x4_y |= size_mask[block_size] << shift_y;
|
|
|
|
if (build_uv && tx_size_uv == TX_4X4)
|
|
*int_4x4_uv |= (size_mask_uv[block_size] & 0xffff) << shift_uv;
|
|
}
|
|
|
|
void vp9_loop_filter_data_reset(
|
|
LFWorkerData *lf_data, YV12_BUFFER_CONFIG *frame_buffer,
|
|
struct VP9Common *cm, const struct macroblockd_plane planes[MAX_MB_PLANE]) {
|
|
lf_data->frame_buffer = frame_buffer;
|
|
lf_data->cm = cm;
|
|
lf_data->start = 0;
|
|
lf_data->stop = 0;
|
|
lf_data->y_only = 0;
|
|
memcpy(lf_data->planes, planes, sizeof(lf_data->planes));
|
|
}
|
|
|
|
void vp9_reset_lfm(VP9_COMMON *const cm) {
|
|
if (cm->lf.filter_level) {
|
|
memset(cm->lf.lfm, 0,
|
|
((cm->mi_rows + (MI_BLOCK_SIZE - 1)) >> 3) * cm->lf.lfm_stride *
|
|
sizeof(*cm->lf.lfm));
|
|
}
|
|
}
|
|
|
|
int vp9_loop_filter_worker(LFWorkerData *const lf_data, void *unused) {
|
|
(void)unused;
|
|
loop_filter_rows(lf_data->frame_buffer, lf_data->cm, lf_data->planes,
|
|
lf_data->start, lf_data->stop, lf_data->y_only);
|
|
return 1;
|
|
}
|