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Diffstat (limited to 'src/dsp/weight_mask.cc')
| -rw-r--r-- | src/dsp/weight_mask.cc | 227 |
1 files changed, 227 insertions, 0 deletions
diff --git a/src/dsp/weight_mask.cc b/src/dsp/weight_mask.cc new file mode 100644 index 0000000..15d6bc6 --- /dev/null +++ b/src/dsp/weight_mask.cc @@ -0,0 +1,227 @@ +// Copyright 2019 The libgav1 Authors +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +#include "src/dsp/weight_mask.h" + +#include <algorithm> +#include <cassert> +#include <cstddef> +#include <cstdint> +#include <string> +#include <type_traits> + +#include "src/dsp/dsp.h" +#include "src/utils/common.h" + +namespace libgav1 { +namespace dsp { +namespace { + +template <int width, int height, int bitdepth, bool mask_is_inverse> +void WeightMask_C(const void* prediction_0, const void* prediction_1, + uint8_t* mask, ptrdiff_t mask_stride) { + using PredType = + typename std::conditional<bitdepth == 8, int16_t, uint16_t>::type; + const auto* pred_0 = static_cast<const PredType*>(prediction_0); + const auto* pred_1 = static_cast<const PredType*>(prediction_1); + static_assert(width >= 8, ""); + static_assert(height >= 8, ""); + constexpr int rounding_bits = bitdepth - 8 + ((bitdepth == 12) ? 2 : 4); + for (int y = 0; y < height; ++y) { + for (int x = 0; x < width; ++x) { + const int difference = RightShiftWithRounding( + std::abs(pred_0[x] - pred_1[x]), rounding_bits); + const auto mask_value = + static_cast<uint8_t>(std::min(DivideBy16(difference) + 38, 64)); + mask[x] = mask_is_inverse ? 64 - mask_value : mask_value; + } + pred_0 += width; + pred_1 += width; + mask += mask_stride; + } +} + +#define INIT_WEIGHT_MASK(width, height, bitdepth, w_index, h_index) \ + dsp->weight_mask[w_index][h_index][0] = \ + WeightMask_C<width, height, bitdepth, 0>; \ + dsp->weight_mask[w_index][h_index][1] = \ + WeightMask_C<width, height, bitdepth, 1> + +void Init8bpp() { + Dsp* const dsp = dsp_internal::GetWritableDspTable(8); + assert(dsp != nullptr); +#if LIBGAV1_ENABLE_ALL_DSP_FUNCTIONS + INIT_WEIGHT_MASK(8, 8, 8, 0, 0); + INIT_WEIGHT_MASK(8, 16, 8, 0, 1); + INIT_WEIGHT_MASK(8, 32, 8, 0, 2); + INIT_WEIGHT_MASK(16, 8, 8, 1, 0); + INIT_WEIGHT_MASK(16, 16, 8, 1, 1); + INIT_WEIGHT_MASK(16, 32, 8, 1, 2); + INIT_WEIGHT_MASK(16, 64, 8, 1, 3); + INIT_WEIGHT_MASK(32, 8, 8, 2, 0); + INIT_WEIGHT_MASK(32, 16, 8, 2, 1); + INIT_WEIGHT_MASK(32, 32, 8, 2, 2); + INIT_WEIGHT_MASK(32, 64, 8, 2, 3); + INIT_WEIGHT_MASK(64, 16, 8, 3, 1); + INIT_WEIGHT_MASK(64, 32, 8, 3, 2); + INIT_WEIGHT_MASK(64, 64, 8, 3, 3); + INIT_WEIGHT_MASK(64, 128, 8, 3, 4); + INIT_WEIGHT_MASK(128, 64, 8, 4, 3); + INIT_WEIGHT_MASK(128, 128, 8, 4, 4); +#else // !LIBGAV1_ENABLE_ALL_DSP_FUNCTIONS + static_cast<void>(dsp); +#ifndef LIBGAV1_Dsp8bpp_WeightMask_8x8 + INIT_WEIGHT_MASK(8, 8, 8, 0, 0); +#endif +#ifndef LIBGAV1_Dsp8bpp_WeightMask_8x16 + INIT_WEIGHT_MASK(8, 16, 8, 0, 1); +#endif +#ifndef LIBGAV1_Dsp8bpp_WeightMask_8x32 + INIT_WEIGHT_MASK(8, 32, 8, 0, 2); +#endif +#ifndef LIBGAV1_Dsp8bpp_WeightMask_16x8 + INIT_WEIGHT_MASK(16, 8, 8, 1, 0); +#endif +#ifndef LIBGAV1_Dsp8bpp_WeightMask_16x16 + INIT_WEIGHT_MASK(16, 16, 8, 1, 1); +#endif +#ifndef LIBGAV1_Dsp8bpp_WeightMask_16x32 + INIT_WEIGHT_MASK(16, 32, 8, 1, 2); +#endif +#ifndef LIBGAV1_Dsp8bpp_WeightMask_16x64 + INIT_WEIGHT_MASK(16, 64, 8, 1, 3); +#endif +#ifndef LIBGAV1_Dsp8bpp_WeightMask_32x8 + INIT_WEIGHT_MASK(32, 8, 8, 2, 0); +#endif +#ifndef LIBGAV1_Dsp8bpp_WeightMask_32x16 + INIT_WEIGHT_MASK(32, 16, 8, 2, 1); +#endif +#ifndef LIBGAV1_Dsp8bpp_WeightMask_32x32 + INIT_WEIGHT_MASK(32, 32, 8, 2, 2); +#endif +#ifndef LIBGAV1_Dsp8bpp_WeightMask_32x64 + INIT_WEIGHT_MASK(32, 64, 8, 2, 3); +#endif +#ifndef LIBGAV1_Dsp8bpp_WeightMask_64x16 + INIT_WEIGHT_MASK(64, 16, 8, 3, 1); +#endif +#ifndef LIBGAV1_Dsp8bpp_WeightMask_64x32 + INIT_WEIGHT_MASK(64, 32, 8, 3, 2); +#endif +#ifndef LIBGAV1_Dsp8bpp_WeightMask_64x64 + INIT_WEIGHT_MASK(64, 64, 8, 3, 3); +#endif +#ifndef LIBGAV1_Dsp8bpp_WeightMask_64x128 + INIT_WEIGHT_MASK(64, 128, 8, 3, 4); +#endif +#ifndef LIBGAV1_Dsp8bpp_WeightMask_128x64 + INIT_WEIGHT_MASK(128, 64, 8, 4, 3); +#endif +#ifndef LIBGAV1_Dsp8bpp_WeightMask_128x128 + INIT_WEIGHT_MASK(128, 128, 8, 4, 4); +#endif +#endif // LIBGAV1_ENABLE_ALL_DSP_FUNCTIONS +} + +#if LIBGAV1_MAX_BITDEPTH >= 10 +void Init10bpp() { + Dsp* const dsp = dsp_internal::GetWritableDspTable(10); + assert(dsp != nullptr); +#if LIBGAV1_ENABLE_ALL_DSP_FUNCTIONS + INIT_WEIGHT_MASK(8, 8, 10, 0, 0); + INIT_WEIGHT_MASK(8, 16, 10, 0, 1); + INIT_WEIGHT_MASK(8, 32, 10, 0, 2); + INIT_WEIGHT_MASK(16, 8, 10, 1, 0); + INIT_WEIGHT_MASK(16, 16, 10, 1, 1); + INIT_WEIGHT_MASK(16, 32, 10, 1, 2); + INIT_WEIGHT_MASK(16, 64, 10, 1, 3); + INIT_WEIGHT_MASK(32, 8, 10, 2, 0); + INIT_WEIGHT_MASK(32, 16, 10, 2, 1); + INIT_WEIGHT_MASK(32, 32, 10, 2, 2); + INIT_WEIGHT_MASK(32, 64, 10, 2, 3); + INIT_WEIGHT_MASK(64, 16, 10, 3, 1); + INIT_WEIGHT_MASK(64, 32, 10, 3, 2); + INIT_WEIGHT_MASK(64, 64, 10, 3, 3); + INIT_WEIGHT_MASK(64, 128, 10, 3, 4); + INIT_WEIGHT_MASK(128, 64, 10, 4, 3); + INIT_WEIGHT_MASK(128, 128, 10, 4, 4); +#else // !LIBGAV1_ENABLE_ALL_DSP_FUNCTIONS + static_cast<void>(dsp); +#ifndef LIBGAV1_Dsp10bpp_WeightMask_8x8 + INIT_WEIGHT_MASK(8, 8, 10, 0, 0); +#endif +#ifndef LIBGAV1_Dsp10bpp_WeightMask_8x16 + INIT_WEIGHT_MASK(8, 16, 10, 0, 1); +#endif +#ifndef LIBGAV1_Dsp10bpp_WeightMask_8x32 + INIT_WEIGHT_MASK(8, 32, 10, 0, 2); +#endif +#ifndef LIBGAV1_Dsp10bpp_WeightMask_16x8 + INIT_WEIGHT_MASK(16, 8, 10, 1, 0); +#endif +#ifndef LIBGAV1_Dsp10bpp_WeightMask_16x16 + INIT_WEIGHT_MASK(16, 16, 10, 1, 1); +#endif +#ifndef LIBGAV1_Dsp10bpp_WeightMask_16x32 + INIT_WEIGHT_MASK(16, 32, 10, 1, 2); +#endif +#ifndef LIBGAV1_Dsp10bpp_WeightMask_16x64 + INIT_WEIGHT_MASK(16, 64, 10, 1, 3); +#endif +#ifndef LIBGAV1_Dsp10bpp_WeightMask_32x8 + INIT_WEIGHT_MASK(32, 8, 10, 2, 0); +#endif +#ifndef LIBGAV1_Dsp10bpp_WeightMask_32x16 + INIT_WEIGHT_MASK(32, 16, 10, 2, 1); +#endif +#ifndef LIBGAV1_Dsp10bpp_WeightMask_32x32 + INIT_WEIGHT_MASK(32, 32, 10, 2, 2); +#endif +#ifndef LIBGAV1_Dsp10bpp_WeightMask_32x64 + INIT_WEIGHT_MASK(32, 64, 10, 2, 3); +#endif +#ifndef LIBGAV1_Dsp10bpp_WeightMask_64x16 + INIT_WEIGHT_MASK(64, 16, 10, 3, 1); +#endif +#ifndef LIBGAV1_Dsp10bpp_WeightMask_64x32 + INIT_WEIGHT_MASK(64, 32, 10, 3, 2); +#endif +#ifndef LIBGAV1_Dsp10bpp_WeightMask_64x64 + INIT_WEIGHT_MASK(64, 64, 10, 3, 3); +#endif +#ifndef LIBGAV1_Dsp10bpp_WeightMask_64x128 + INIT_WEIGHT_MASK(64, 128, 10, 3, 4); +#endif +#ifndef LIBGAV1_Dsp10bpp_WeightMask_128x64 + INIT_WEIGHT_MASK(128, 64, 10, 4, 3); +#endif +#ifndef LIBGAV1_Dsp10bpp_WeightMask_128x128 + INIT_WEIGHT_MASK(128, 128, 10, 4, 4); +#endif +#endif // LIBGAV1_ENABLE_ALL_DSP_FUNCTIONS +} +#endif + +} // namespace + +void WeightMaskInit_C() { + Init8bpp(); +#if LIBGAV1_MAX_BITDEPTH >= 10 + Init10bpp(); +#endif +} + +} // namespace dsp +} // namespace libgav1 |