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-rw-r--r--third_party/jpeg-xl/lib/jxl/enc_transforms-inl.h827
1 files changed, 827 insertions, 0 deletions
diff --git a/third_party/jpeg-xl/lib/jxl/enc_transforms-inl.h b/third_party/jpeg-xl/lib/jxl/enc_transforms-inl.h
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index 0000000000..ef6dc2bbd7
--- /dev/null
+++ b/third_party/jpeg-xl/lib/jxl/enc_transforms-inl.h
@@ -0,0 +1,827 @@
+// Copyright (c) the JPEG XL Project Authors. All rights reserved.
+//
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+#if defined(LIB_JXL_ENC_TRANSFORMS_INL_H_) == defined(HWY_TARGET_TOGGLE)
+#ifdef LIB_JXL_ENC_TRANSFORMS_INL_H_
+#undef LIB_JXL_ENC_TRANSFORMS_INL_H_
+#else
+#define LIB_JXL_ENC_TRANSFORMS_INL_H_
+#endif
+
+#include <stddef.h>
+
+#include <hwy/highway.h>
+
+#include "lib/jxl/ac_strategy.h"
+#include "lib/jxl/coeff_order_fwd.h"
+#include "lib/jxl/dct-inl.h"
+#include "lib/jxl/dct_scales.h"
+HWY_BEFORE_NAMESPACE();
+namespace jxl {
+namespace HWY_NAMESPACE {
+namespace {
+
+// Inverse of ReinterpretingDCT.
+template <size_t DCT_ROWS, size_t DCT_COLS, size_t LF_ROWS, size_t LF_COLS,
+ size_t ROWS, size_t COLS>
+HWY_INLINE void ReinterpretingIDCT(const float* input,
+ const size_t input_stride, float* output,
+ const size_t output_stride) {
+ HWY_ALIGN float block[ROWS * COLS] = {};
+ if (ROWS < COLS) {
+ for (size_t y = 0; y < LF_ROWS; y++) {
+ for (size_t x = 0; x < LF_COLS; x++) {
+ block[y * COLS + x] = input[y * input_stride + x] *
+ DCTTotalResampleScale<DCT_ROWS, ROWS>(y) *
+ DCTTotalResampleScale<DCT_COLS, COLS>(x);
+ }
+ }
+ } else {
+ for (size_t y = 0; y < LF_COLS; y++) {
+ for (size_t x = 0; x < LF_ROWS; x++) {
+ block[y * ROWS + x] = input[y * input_stride + x] *
+ DCTTotalResampleScale<DCT_COLS, COLS>(y) *
+ DCTTotalResampleScale<DCT_ROWS, ROWS>(x);
+ }
+ }
+ }
+
+ // ROWS, COLS <= 8, so we can put scratch space on the stack.
+ HWY_ALIGN float scratch_space[ROWS * COLS];
+ ComputeScaledIDCT<ROWS, COLS>()(block, DCTTo(output, output_stride),
+ scratch_space);
+}
+
+template <size_t S>
+void DCT2TopBlock(const float* block, size_t stride, float* out) {
+ static_assert(kBlockDim % S == 0, "S should be a divisor of kBlockDim");
+ static_assert(S % 2 == 0, "S should be even");
+ float temp[kDCTBlockSize];
+ constexpr size_t num_2x2 = S / 2;
+ for (size_t y = 0; y < num_2x2; y++) {
+ for (size_t x = 0; x < num_2x2; x++) {
+ float c00 = block[y * 2 * stride + x * 2];
+ float c01 = block[y * 2 * stride + x * 2 + 1];
+ float c10 = block[(y * 2 + 1) * stride + x * 2];
+ float c11 = block[(y * 2 + 1) * stride + x * 2 + 1];
+ float r00 = c00 + c01 + c10 + c11;
+ float r01 = c00 + c01 - c10 - c11;
+ float r10 = c00 - c01 + c10 - c11;
+ float r11 = c00 - c01 - c10 + c11;
+ r00 *= 0.25f;
+ r01 *= 0.25f;
+ r10 *= 0.25f;
+ r11 *= 0.25f;
+ temp[y * kBlockDim + x] = r00;
+ temp[y * kBlockDim + num_2x2 + x] = r01;
+ temp[(y + num_2x2) * kBlockDim + x] = r10;
+ temp[(y + num_2x2) * kBlockDim + num_2x2 + x] = r11;
+ }
+ }
+ for (size_t y = 0; y < S; y++) {
+ for (size_t x = 0; x < S; x++) {
+ out[y * kBlockDim + x] = temp[y * kBlockDim + x];
+ }
+ }
+}
+
+void AFVDCT4x4(const float* JXL_RESTRICT pixels, float* JXL_RESTRICT coeffs) {
+ HWY_ALIGN static constexpr float k4x4AFVBasisTranspose[16][16] = {
+ {
+ 0.2500000000000000,
+ 0.8769029297991420f,
+ 0.0000000000000000,
+ 0.0000000000000000,
+ 0.0000000000000000,
+ -0.4105377591765233f,
+ 0.0000000000000000,
+ 0.0000000000000000,
+ 0.0000000000000000,
+ 0.0000000000000000,
+ 0.0000000000000000,
+ 0.0000000000000000,
+ 0.0000000000000000,
+ 0.0000000000000000,
+ 0.0000000000000000,
+ 0.0000000000000000,
+ },
+ {
+ 0.2500000000000000,
+ 0.2206518106944235f,
+ 0.0000000000000000,
+ 0.0000000000000000,
+ -0.7071067811865474f,
+ 0.6235485373547691f,
+ 0.0000000000000000,
+ 0.0000000000000000,
+ 0.0000000000000000,
+ 0.0000000000000000,
+ 0.0000000000000000,
+ 0.0000000000000000,
+ 0.0000000000000000,
+ 0.0000000000000000,
+ 0.0000000000000000,
+ 0.0000000000000000,
+ },
+ {
+ 0.2500000000000000,
+ -0.1014005039375376f,
+ 0.4067007583026075f,
+ -0.2125574805828875f,
+ 0.0000000000000000,
+ -0.0643507165794627f,
+ -0.4517556589999482f,
+ -0.3046847507248690f,
+ 0.3017929516615495f,
+ 0.4082482904638627f,
+ 0.1747866975480809f,
+ -0.2110560104933578f,
+ -0.1426608480880726f,
+ -0.1381354035075859f,
+ -0.1743760259965107f,
+ 0.1135498731499434f,
+ },
+ {
+ 0.2500000000000000,
+ -0.1014005039375375f,
+ 0.4444481661973445f,
+ 0.3085497062849767f,
+ 0.0000000000000000f,
+ -0.0643507165794627f,
+ 0.1585450355184006f,
+ 0.5112616136591823f,
+ 0.2579236279634118f,
+ 0.0000000000000000,
+ 0.0812611176717539f,
+ 0.1856718091610980f,
+ -0.3416446842253372f,
+ 0.3302282550303788f,
+ 0.0702790691196284f,
+ -0.0741750459581035f,
+ },
+ {
+ 0.2500000000000000,
+ 0.2206518106944236f,
+ 0.0000000000000000,
+ 0.0000000000000000,
+ 0.7071067811865476f,
+ 0.6235485373547694f,
+ 0.0000000000000000,
+ 0.0000000000000000,
+ 0.0000000000000000,
+ 0.0000000000000000,
+ 0.0000000000000000,
+ 0.0000000000000000,
+ 0.0000000000000000,
+ 0.0000000000000000,
+ 0.0000000000000000,
+ 0.0000000000000000,
+ },
+ {
+ 0.2500000000000000,
+ -0.1014005039375378f,
+ 0.0000000000000000,
+ 0.4706702258572536f,
+ 0.0000000000000000,
+ -0.0643507165794628f,
+ -0.0403851516082220f,
+ 0.0000000000000000,
+ 0.1627234014286620f,
+ 0.0000000000000000,
+ 0.0000000000000000,
+ 0.0000000000000000,
+ 0.7367497537172237f,
+ 0.0875511500058708f,
+ -0.2921026642334881f,
+ 0.1940289303259434f,
+ },
+ {
+ 0.2500000000000000,
+ -0.1014005039375377f,
+ 0.1957439937204294f,
+ -0.1621205195722993f,
+ 0.0000000000000000,
+ -0.0643507165794628f,
+ 0.0074182263792424f,
+ -0.2904801297289980f,
+ 0.0952002265347504f,
+ 0.0000000000000000,
+ -0.3675398009862027f,
+ 0.4921585901373873f,
+ 0.2462710772207515f,
+ -0.0794670660590957f,
+ 0.3623817333531167f,
+ -0.4351904965232280f,
+ },
+ {
+ 0.2500000000000000,
+ -0.1014005039375376f,
+ 0.2929100136981264f,
+ 0.0000000000000000,
+ 0.0000000000000000,
+ -0.0643507165794627f,
+ 0.3935103426921017f,
+ -0.0657870154914280f,
+ 0.0000000000000000,
+ -0.4082482904638628f,
+ -0.3078822139579090f,
+ -0.3852501370925192f,
+ -0.0857401903551931f,
+ -0.4613374887461511f,
+ 0.0000000000000000,
+ 0.2191868483885747f,
+ },
+ {
+ 0.2500000000000000,
+ -0.1014005039375376f,
+ -0.4067007583026072f,
+ -0.2125574805828705f,
+ 0.0000000000000000,
+ -0.0643507165794627f,
+ -0.4517556589999464f,
+ 0.3046847507248840f,
+ 0.3017929516615503f,
+ -0.4082482904638635f,
+ -0.1747866975480813f,
+ 0.2110560104933581f,
+ -0.1426608480880734f,
+ -0.1381354035075829f,
+ -0.1743760259965108f,
+ 0.1135498731499426f,
+ },
+ {
+ 0.2500000000000000,
+ -0.1014005039375377f,
+ -0.1957439937204287f,
+ -0.1621205195722833f,
+ 0.0000000000000000,
+ -0.0643507165794628f,
+ 0.0074182263792444f,
+ 0.2904801297290076f,
+ 0.0952002265347505f,
+ 0.0000000000000000,
+ 0.3675398009862011f,
+ -0.4921585901373891f,
+ 0.2462710772207514f,
+ -0.0794670660591026f,
+ 0.3623817333531165f,
+ -0.4351904965232251f,
+ },
+ {
+ 0.2500000000000000,
+ -0.1014005039375375f,
+ 0.0000000000000000,
+ -0.4706702258572528f,
+ 0.0000000000000000,
+ -0.0643507165794627f,
+ 0.1107416575309343f,
+ 0.0000000000000000,
+ -0.1627234014286617f,
+ 0.0000000000000000,
+ 0.0000000000000000,
+ 0.0000000000000000,
+ 0.1488339922711357f,
+ 0.4972464710953509f,
+ 0.2921026642334879f,
+ 0.5550443808910661f,
+ },
+ {
+ 0.2500000000000000,
+ -0.1014005039375377f,
+ 0.1137907446044809f,
+ -0.1464291867126764f,
+ 0.0000000000000000,
+ -0.0643507165794628f,
+ 0.0829816309488205f,
+ -0.2388977352334460f,
+ -0.3531238544981630f,
+ -0.4082482904638630f,
+ 0.4826689115059883f,
+ 0.1741941265991622f,
+ -0.0476868035022925f,
+ 0.1253805944856366f,
+ -0.4326608024727445f,
+ -0.2546827712406646f,
+ },
+ {
+ 0.2500000000000000,
+ -0.1014005039375377f,
+ -0.4444481661973438f,
+ 0.3085497062849487f,
+ 0.0000000000000000,
+ -0.0643507165794628f,
+ 0.1585450355183970f,
+ -0.5112616136592012f,
+ 0.2579236279634129f,
+ 0.0000000000000000,
+ -0.0812611176717504f,
+ -0.1856718091610990f,
+ -0.3416446842253373f,
+ 0.3302282550303805f,
+ 0.0702790691196282f,
+ -0.0741750459581023f,
+ },
+ {
+ 0.2500000000000000,
+ -0.1014005039375376f,
+ -0.2929100136981264f,
+ 0.0000000000000000,
+ 0.0000000000000000,
+ -0.0643507165794627f,
+ 0.3935103426921022f,
+ 0.0657870154914254f,
+ 0.0000000000000000,
+ 0.4082482904638634f,
+ 0.3078822139579031f,
+ 0.3852501370925211f,
+ -0.0857401903551927f,
+ -0.4613374887461554f,
+ 0.0000000000000000,
+ 0.2191868483885728f,
+ },
+ {
+ 0.2500000000000000,
+ -0.1014005039375376f,
+ -0.1137907446044814f,
+ -0.1464291867126654f,
+ 0.0000000000000000,
+ -0.0643507165794627f,
+ 0.0829816309488214f,
+ 0.2388977352334547f,
+ -0.3531238544981624f,
+ 0.4082482904638630f,
+ -0.4826689115059858f,
+ -0.1741941265991621f,
+ -0.0476868035022928f,
+ 0.1253805944856431f,
+ -0.4326608024727457f,
+ -0.2546827712406641f,
+ },
+ {
+ 0.2500000000000000,
+ -0.1014005039375374f,
+ 0.0000000000000000,
+ 0.4251149611657548f,
+ 0.0000000000000000,
+ -0.0643507165794626f,
+ -0.4517556589999480f,
+ 0.0000000000000000,
+ -0.6035859033230976f,
+ 0.0000000000000000,
+ 0.0000000000000000,
+ 0.0000000000000000,
+ -0.1426608480880724f,
+ -0.1381354035075845f,
+ 0.3487520519930227f,
+ 0.1135498731499429f,
+ },
+ };
+
+ const HWY_CAPPED(float, 16) d;
+ for (size_t i = 0; i < 16; i += Lanes(d)) {
+ auto scalar = Zero(d);
+ for (size_t j = 0; j < 16; j++) {
+ auto px = Set(d, pixels[j]);
+ auto basis = Load(d, k4x4AFVBasisTranspose[j] + i);
+ scalar = MulAdd(px, basis, scalar);
+ }
+ Store(scalar, d, coeffs + i);
+ }
+}
+
+// Coefficient layout:
+// - (even, even) positions hold AFV coefficients
+// - (odd, even) positions hold DCT4x4 coefficients
+// - (any, odd) positions hold DCT4x8 coefficients
+template <size_t afv_kind>
+void AFVTransformFromPixels(const float* JXL_RESTRICT pixels,
+ size_t pixels_stride,
+ float* JXL_RESTRICT coefficients) {
+ HWY_ALIGN float scratch_space[4 * 8 * 2];
+ size_t afv_x = afv_kind & 1;
+ size_t afv_y = afv_kind / 2;
+ HWY_ALIGN float block[4 * 8];
+ for (size_t iy = 0; iy < 4; iy++) {
+ for (size_t ix = 0; ix < 4; ix++) {
+ block[(afv_y == 1 ? 3 - iy : iy) * 4 + (afv_x == 1 ? 3 - ix : ix)] =
+ pixels[(iy + 4 * afv_y) * pixels_stride + ix + 4 * afv_x];
+ }
+ }
+ // AFV coefficients in (even, even) positions.
+ HWY_ALIGN float coeff[4 * 4];
+ AFVDCT4x4(block, coeff);
+ for (size_t iy = 0; iy < 4; iy++) {
+ for (size_t ix = 0; ix < 4; ix++) {
+ coefficients[iy * 2 * 8 + ix * 2] = coeff[iy * 4 + ix];
+ }
+ }
+ // 4x4 DCT of the block with same y and different x.
+ ComputeScaledDCT<4, 4>()(
+ DCTFrom(pixels + afv_y * 4 * pixels_stride + (afv_x == 1 ? 0 : 4),
+ pixels_stride),
+ block, scratch_space);
+ // ... in (odd, even) positions.
+ for (size_t iy = 0; iy < 4; iy++) {
+ for (size_t ix = 0; ix < 8; ix++) {
+ coefficients[iy * 2 * 8 + ix * 2 + 1] = block[iy * 4 + ix];
+ }
+ }
+ // 4x8 DCT of the other half of the block.
+ ComputeScaledDCT<4, 8>()(
+ DCTFrom(pixels + (afv_y == 1 ? 0 : 4) * pixels_stride, pixels_stride),
+ block, scratch_space);
+ for (size_t iy = 0; iy < 4; iy++) {
+ for (size_t ix = 0; ix < 8; ix++) {
+ coefficients[(1 + iy * 2) * 8 + ix] = block[iy * 8 + ix];
+ }
+ }
+ float block00 = coefficients[0] * 0.25f;
+ float block01 = coefficients[1];
+ float block10 = coefficients[8];
+ coefficients[0] = (block00 + block01 + 2 * block10) * 0.25f;
+ coefficients[1] = (block00 - block01) * 0.5f;
+ coefficients[8] = (block00 + block01 - 2 * block10) * 0.25f;
+}
+
+HWY_MAYBE_UNUSED void TransformFromPixels(const AcStrategy::Type strategy,
+ const float* JXL_RESTRICT pixels,
+ size_t pixels_stride,
+ float* JXL_RESTRICT coefficients,
+ float* JXL_RESTRICT scratch_space) {
+ using Type = AcStrategy::Type;
+ switch (strategy) {
+ case Type::IDENTITY: {
+ PROFILER_ZONE("DCT Identity");
+ for (size_t y = 0; y < 2; y++) {
+ for (size_t x = 0; x < 2; x++) {
+ float block_dc = 0;
+ for (size_t iy = 0; iy < 4; iy++) {
+ for (size_t ix = 0; ix < 4; ix++) {
+ block_dc += pixels[(y * 4 + iy) * pixels_stride + x * 4 + ix];
+ }
+ }
+ block_dc *= 1.0f / 16;
+ for (size_t iy = 0; iy < 4; iy++) {
+ for (size_t ix = 0; ix < 4; ix++) {
+ if (ix == 1 && iy == 1) continue;
+ coefficients[(y + iy * 2) * 8 + x + ix * 2] =
+ pixels[(y * 4 + iy) * pixels_stride + x * 4 + ix] -
+ pixels[(y * 4 + 1) * pixels_stride + x * 4 + 1];
+ }
+ }
+ coefficients[(y + 2) * 8 + x + 2] = coefficients[y * 8 + x];
+ coefficients[y * 8 + x] = block_dc;
+ }
+ }
+ float block00 = coefficients[0];
+ float block01 = coefficients[1];
+ float block10 = coefficients[8];
+ float block11 = coefficients[9];
+ coefficients[0] = (block00 + block01 + block10 + block11) * 0.25f;
+ coefficients[1] = (block00 + block01 - block10 - block11) * 0.25f;
+ coefficients[8] = (block00 - block01 + block10 - block11) * 0.25f;
+ coefficients[9] = (block00 - block01 - block10 + block11) * 0.25f;
+ break;
+ }
+ case Type::DCT8X4: {
+ PROFILER_ZONE("DCT 8x4");
+ for (size_t x = 0; x < 2; x++) {
+ HWY_ALIGN float block[4 * 8];
+ ComputeScaledDCT<8, 4>()(DCTFrom(pixels + x * 4, pixels_stride), block,
+ scratch_space);
+ for (size_t iy = 0; iy < 4; iy++) {
+ for (size_t ix = 0; ix < 8; ix++) {
+ // Store transposed.
+ coefficients[(x + iy * 2) * 8 + ix] = block[iy * 8 + ix];
+ }
+ }
+ }
+ float block0 = coefficients[0];
+ float block1 = coefficients[8];
+ coefficients[0] = (block0 + block1) * 0.5f;
+ coefficients[8] = (block0 - block1) * 0.5f;
+ break;
+ }
+ case Type::DCT4X8: {
+ PROFILER_ZONE("DCT 4x8");
+ for (size_t y = 0; y < 2; y++) {
+ HWY_ALIGN float block[4 * 8];
+ ComputeScaledDCT<4, 8>()(
+ DCTFrom(pixels + y * 4 * pixels_stride, pixels_stride), block,
+ scratch_space);
+ for (size_t iy = 0; iy < 4; iy++) {
+ for (size_t ix = 0; ix < 8; ix++) {
+ coefficients[(y + iy * 2) * 8 + ix] = block[iy * 8 + ix];
+ }
+ }
+ }
+ float block0 = coefficients[0];
+ float block1 = coefficients[8];
+ coefficients[0] = (block0 + block1) * 0.5f;
+ coefficients[8] = (block0 - block1) * 0.5f;
+ break;
+ }
+ case Type::DCT4X4: {
+ PROFILER_ZONE("DCT 4");
+ for (size_t y = 0; y < 2; y++) {
+ for (size_t x = 0; x < 2; x++) {
+ HWY_ALIGN float block[4 * 4];
+ ComputeScaledDCT<4, 4>()(
+ DCTFrom(pixels + y * 4 * pixels_stride + x * 4, pixels_stride),
+ block, scratch_space);
+ for (size_t iy = 0; iy < 4; iy++) {
+ for (size_t ix = 0; ix < 4; ix++) {
+ coefficients[(y + iy * 2) * 8 + x + ix * 2] = block[iy * 4 + ix];
+ }
+ }
+ }
+ }
+ float block00 = coefficients[0];
+ float block01 = coefficients[1];
+ float block10 = coefficients[8];
+ float block11 = coefficients[9];
+ coefficients[0] = (block00 + block01 + block10 + block11) * 0.25f;
+ coefficients[1] = (block00 + block01 - block10 - block11) * 0.25f;
+ coefficients[8] = (block00 - block01 + block10 - block11) * 0.25f;
+ coefficients[9] = (block00 - block01 - block10 + block11) * 0.25f;
+ break;
+ }
+ case Type::DCT2X2: {
+ PROFILER_ZONE("DCT 2");
+ DCT2TopBlock<8>(pixels, pixels_stride, coefficients);
+ DCT2TopBlock<4>(coefficients, kBlockDim, coefficients);
+ DCT2TopBlock<2>(coefficients, kBlockDim, coefficients);
+ break;
+ }
+ case Type::DCT16X16: {
+ PROFILER_ZONE("DCT 16");
+ ComputeScaledDCT<16, 16>()(DCTFrom(pixels, pixels_stride), coefficients,
+ scratch_space);
+ break;
+ }
+ case Type::DCT16X8: {
+ PROFILER_ZONE("DCT 16x8");
+ ComputeScaledDCT<16, 8>()(DCTFrom(pixels, pixels_stride), coefficients,
+ scratch_space);
+ break;
+ }
+ case Type::DCT8X16: {
+ PROFILER_ZONE("DCT 8x16");
+ ComputeScaledDCT<8, 16>()(DCTFrom(pixels, pixels_stride), coefficients,
+ scratch_space);
+ break;
+ }
+ case Type::DCT32X8: {
+ PROFILER_ZONE("DCT 32x8");
+ ComputeScaledDCT<32, 8>()(DCTFrom(pixels, pixels_stride), coefficients,
+ scratch_space);
+ break;
+ }
+ case Type::DCT8X32: {
+ PROFILER_ZONE("DCT 8x32");
+ ComputeScaledDCT<8, 32>()(DCTFrom(pixels, pixels_stride), coefficients,
+ scratch_space);
+ break;
+ }
+ case Type::DCT32X16: {
+ PROFILER_ZONE("DCT 32x16");
+ ComputeScaledDCT<32, 16>()(DCTFrom(pixels, pixels_stride), coefficients,
+ scratch_space);
+ break;
+ }
+ case Type::DCT16X32: {
+ PROFILER_ZONE("DCT 16x32");
+ ComputeScaledDCT<16, 32>()(DCTFrom(pixels, pixels_stride), coefficients,
+ scratch_space);
+ break;
+ }
+ case Type::DCT32X32: {
+ PROFILER_ZONE("DCT 32");
+ ComputeScaledDCT<32, 32>()(DCTFrom(pixels, pixels_stride), coefficients,
+ scratch_space);
+ break;
+ }
+ case Type::DCT: {
+ PROFILER_ZONE("DCT 8");
+ ComputeScaledDCT<8, 8>()(DCTFrom(pixels, pixels_stride), coefficients,
+ scratch_space);
+ break;
+ }
+ case Type::AFV0: {
+ PROFILER_ZONE("AFV0");
+ AFVTransformFromPixels<0>(pixels, pixels_stride, coefficients);
+ break;
+ }
+ case Type::AFV1: {
+ PROFILER_ZONE("AFV1");
+ AFVTransformFromPixels<1>(pixels, pixels_stride, coefficients);
+ break;
+ }
+ case Type::AFV2: {
+ PROFILER_ZONE("AFV2");
+ AFVTransformFromPixels<2>(pixels, pixels_stride, coefficients);
+ break;
+ }
+ case Type::AFV3: {
+ PROFILER_ZONE("AFV3");
+ AFVTransformFromPixels<3>(pixels, pixels_stride, coefficients);
+ break;
+ }
+ case Type::DCT64X64: {
+ PROFILER_ZONE("DCT 64x64");
+ ComputeScaledDCT<64, 64>()(DCTFrom(pixels, pixels_stride), coefficients,
+ scratch_space);
+ break;
+ }
+ case Type::DCT64X32: {
+ PROFILER_ZONE("DCT 64x32");
+ ComputeScaledDCT<64, 32>()(DCTFrom(pixels, pixels_stride), coefficients,
+ scratch_space);
+ break;
+ }
+ case Type::DCT32X64: {
+ PROFILER_ZONE("DCT 32x64");
+ ComputeScaledDCT<32, 64>()(DCTFrom(pixels, pixels_stride), coefficients,
+ scratch_space);
+ break;
+ }
+ case Type::DCT128X128: {
+ PROFILER_ZONE("DCT 128x128");
+ ComputeScaledDCT<128, 128>()(DCTFrom(pixels, pixels_stride), coefficients,
+ scratch_space);
+ break;
+ }
+ case Type::DCT128X64: {
+ PROFILER_ZONE("DCT 128x64");
+ ComputeScaledDCT<128, 64>()(DCTFrom(pixels, pixels_stride), coefficients,
+ scratch_space);
+ break;
+ }
+ case Type::DCT64X128: {
+ PROFILER_ZONE("DCT 64x128");
+ ComputeScaledDCT<64, 128>()(DCTFrom(pixels, pixels_stride), coefficients,
+ scratch_space);
+ break;
+ }
+ case Type::DCT256X256: {
+ PROFILER_ZONE("DCT 256x256");
+ ComputeScaledDCT<256, 256>()(DCTFrom(pixels, pixels_stride), coefficients,
+ scratch_space);
+ break;
+ }
+ case Type::DCT256X128: {
+ PROFILER_ZONE("DCT 256x128");
+ ComputeScaledDCT<256, 128>()(DCTFrom(pixels, pixels_stride), coefficients,
+ scratch_space);
+ break;
+ }
+ case Type::DCT128X256: {
+ PROFILER_ZONE("DCT 128x256");
+ ComputeScaledDCT<128, 256>()(DCTFrom(pixels, pixels_stride), coefficients,
+ scratch_space);
+ break;
+ }
+ case Type::kNumValidStrategies:
+ JXL_ABORT("Invalid strategy");
+ }
+}
+
+HWY_MAYBE_UNUSED void DCFromLowestFrequencies(const AcStrategy::Type strategy,
+ const float* block, float* dc,
+ size_t dc_stride) {
+ using Type = AcStrategy::Type;
+ switch (strategy) {
+ case Type::DCT16X8: {
+ ReinterpretingIDCT</*DCT_ROWS=*/2 * kBlockDim, /*DCT_COLS=*/kBlockDim,
+ /*LF_ROWS=*/2, /*LF_COLS=*/1, /*ROWS=*/2, /*COLS=*/1>(
+ block, 2 * kBlockDim, dc, dc_stride);
+ break;
+ }
+ case Type::DCT8X16: {
+ ReinterpretingIDCT</*DCT_ROWS=*/kBlockDim, /*DCT_COLS=*/2 * kBlockDim,
+ /*LF_ROWS=*/1, /*LF_COLS=*/2, /*ROWS=*/1, /*COLS=*/2>(
+ block, 2 * kBlockDim, dc, dc_stride);
+ break;
+ }
+ case Type::DCT16X16: {
+ ReinterpretingIDCT</*DCT_ROWS=*/2 * kBlockDim, /*DCT_COLS=*/2 * kBlockDim,
+ /*LF_ROWS=*/2, /*LF_COLS=*/2, /*ROWS=*/2, /*COLS=*/2>(
+ block, 2 * kBlockDim, dc, dc_stride);
+ break;
+ }
+ case Type::DCT32X8: {
+ ReinterpretingIDCT</*DCT_ROWS=*/4 * kBlockDim, /*DCT_COLS=*/kBlockDim,
+ /*LF_ROWS=*/4, /*LF_COLS=*/1, /*ROWS=*/4, /*COLS=*/1>(
+ block, 4 * kBlockDim, dc, dc_stride);
+ break;
+ }
+ case Type::DCT8X32: {
+ ReinterpretingIDCT</*DCT_ROWS=*/kBlockDim, /*DCT_COLS=*/4 * kBlockDim,
+ /*LF_ROWS=*/1, /*LF_COLS=*/4, /*ROWS=*/1, /*COLS=*/4>(
+ block, 4 * kBlockDim, dc, dc_stride);
+ break;
+ }
+ case Type::DCT32X16: {
+ ReinterpretingIDCT</*DCT_ROWS=*/4 * kBlockDim, /*DCT_COLS=*/2 * kBlockDim,
+ /*LF_ROWS=*/4, /*LF_COLS=*/2, /*ROWS=*/4, /*COLS=*/2>(
+ block, 4 * kBlockDim, dc, dc_stride);
+ break;
+ }
+ case Type::DCT16X32: {
+ ReinterpretingIDCT</*DCT_ROWS=*/2 * kBlockDim, /*DCT_COLS=*/4 * kBlockDim,
+ /*LF_ROWS=*/2, /*LF_COLS=*/4, /*ROWS=*/2, /*COLS=*/4>(
+ block, 4 * kBlockDim, dc, dc_stride);
+ break;
+ }
+ case Type::DCT32X32: {
+ ReinterpretingIDCT</*DCT_ROWS=*/4 * kBlockDim, /*DCT_COLS=*/4 * kBlockDim,
+ /*LF_ROWS=*/4, /*LF_COLS=*/4, /*ROWS=*/4, /*COLS=*/4>(
+ block, 4 * kBlockDim, dc, dc_stride);
+ break;
+ }
+ case Type::DCT64X32: {
+ ReinterpretingIDCT</*DCT_ROWS=*/8 * kBlockDim, /*DCT_COLS=*/4 * kBlockDim,
+ /*LF_ROWS=*/8, /*LF_COLS=*/4, /*ROWS=*/8, /*COLS=*/4>(
+ block, 8 * kBlockDim, dc, dc_stride);
+ break;
+ }
+ case Type::DCT32X64: {
+ ReinterpretingIDCT</*DCT_ROWS=*/4 * kBlockDim, /*DCT_COLS=*/8 * kBlockDim,
+ /*LF_ROWS=*/4, /*LF_COLS=*/8, /*ROWS=*/4, /*COLS=*/8>(
+ block, 8 * kBlockDim, dc, dc_stride);
+ break;
+ }
+ case Type::DCT64X64: {
+ ReinterpretingIDCT</*DCT_ROWS=*/8 * kBlockDim, /*DCT_COLS=*/8 * kBlockDim,
+ /*LF_ROWS=*/8, /*LF_COLS=*/8, /*ROWS=*/8, /*COLS=*/8>(
+ block, 8 * kBlockDim, dc, dc_stride);
+ break;
+ }
+ case Type::DCT128X64: {
+ ReinterpretingIDCT<
+ /*DCT_ROWS=*/16 * kBlockDim, /*DCT_COLS=*/8 * kBlockDim,
+ /*LF_ROWS=*/16, /*LF_COLS=*/8, /*ROWS=*/16, /*COLS=*/8>(
+ block, 16 * kBlockDim, dc, dc_stride);
+ break;
+ }
+ case Type::DCT64X128: {
+ ReinterpretingIDCT<
+ /*DCT_ROWS=*/8 * kBlockDim, /*DCT_COLS=*/16 * kBlockDim,
+ /*LF_ROWS=*/8, /*LF_COLS=*/16, /*ROWS=*/8, /*COLS=*/16>(
+ block, 16 * kBlockDim, dc, dc_stride);
+ break;
+ }
+ case Type::DCT128X128: {
+ ReinterpretingIDCT<
+ /*DCT_ROWS=*/16 * kBlockDim, /*DCT_COLS=*/16 * kBlockDim,
+ /*LF_ROWS=*/16, /*LF_COLS=*/16, /*ROWS=*/16, /*COLS=*/16>(
+ block, 16 * kBlockDim, dc, dc_stride);
+ break;
+ }
+ case Type::DCT256X128: {
+ ReinterpretingIDCT<
+ /*DCT_ROWS=*/32 * kBlockDim, /*DCT_COLS=*/16 * kBlockDim,
+ /*LF_ROWS=*/32, /*LF_COLS=*/16, /*ROWS=*/32, /*COLS=*/16>(
+ block, 32 * kBlockDim, dc, dc_stride);
+ break;
+ }
+ case Type::DCT128X256: {
+ ReinterpretingIDCT<
+ /*DCT_ROWS=*/16 * kBlockDim, /*DCT_COLS=*/32 * kBlockDim,
+ /*LF_ROWS=*/16, /*LF_COLS=*/32, /*ROWS=*/16, /*COLS=*/32>(
+ block, 32 * kBlockDim, dc, dc_stride);
+ break;
+ }
+ case Type::DCT256X256: {
+ ReinterpretingIDCT<
+ /*DCT_ROWS=*/32 * kBlockDim, /*DCT_COLS=*/32 * kBlockDim,
+ /*LF_ROWS=*/32, /*LF_COLS=*/32, /*ROWS=*/32, /*COLS=*/32>(
+ block, 32 * kBlockDim, dc, dc_stride);
+ break;
+ }
+ case Type::DCT:
+ case Type::DCT2X2:
+ case Type::DCT4X4:
+ case Type::DCT4X8:
+ case Type::DCT8X4:
+ case Type::AFV0:
+ case Type::AFV1:
+ case Type::AFV2:
+ case Type::AFV3:
+ case Type::IDENTITY:
+ dc[0] = block[0];
+ break;
+ case Type::kNumValidStrategies:
+ JXL_ABORT("Invalid strategy");
+ }
+}
+
+} // namespace
+// NOLINTNEXTLINE(google-readability-namespace-comments)
+} // namespace HWY_NAMESPACE
+} // namespace jxl
+HWY_AFTER_NAMESPACE();
+
+#endif // LIB_JXL_ENC_TRANSFORMS_INL_H_
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-25 07:03:24 +0000