585 lines
21 KiB
C++
585 lines
21 KiB
C++
// basisu_kernels_imp.h - Do not directly include
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// Copyright (C) 2019-2021 Binomial LLC. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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using namespace CPPSPMD;
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namespace CPPSPMD_NAME(basisu_kernels_namespace)
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{
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struct perceptual_distance_rgb_4_N : spmd_kernel
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{
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void _call(int64_t* pDistance,
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const uint8_t* pSelectors,
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const color_rgba* pBlock_colors,
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const color_rgba* pSrc_pixels, uint32_t n,
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int64_t early_out_err)
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{
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assert(early_out_err >= 0);
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*pDistance = 0;
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__m128i block_colors[4];
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vint block_colors_r[4], block_colors_g[4], block_colors_b[4];
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for (uint32_t i = 0; i < 4; i++)
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{
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block_colors[i] = load_rgba32(&pBlock_colors[i]);
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store_all(block_colors_r[i], (int)pBlock_colors[i].r);
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store_all(block_colors_g[i], (int)pBlock_colors[i].g);
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store_all(block_colors_b[i], (int)pBlock_colors[i].b);
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}
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uint32_t i;
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for (i = 0; (i + 4) <= n; i += 4)
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{
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__m128i c0 = load_rgba32(&pSrc_pixels[i + 0]), c1 = load_rgba32(&pSrc_pixels[i + 1]), c2 = load_rgba32(&pSrc_pixels[i + 2]), c3 = load_rgba32(&pSrc_pixels[i + 3]);
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vint r, g, b, a;
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transpose4x4(r.m_value, g.m_value, b.m_value, a.m_value, c0, c1, c2, c3);
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int s0 = pSelectors[i], s1 = pSelectors[i + 1], s2 = pSelectors[i + 2], s3 = pSelectors[i + 3];
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vint base_r, base_g, base_b, base_a;
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if ((s0 == s1) && (s0 == s2) && (s0 == s3))
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{
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store_all(base_r, block_colors_r[s0]);
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store_all(base_g, block_colors_g[s0]);
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store_all(base_b, block_colors_b[s0]);
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}
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else
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{
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__m128i k0 = block_colors[s0], k1 = block_colors[s1], k2 = block_colors[s2], k3 = block_colors[s3];
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transpose4x4(base_r.m_value, base_g.m_value, base_b.m_value, base_a.m_value, k0, k1, k2, k3);
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}
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vint dr = base_r - r;
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vint dg = base_g - g;
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vint db = base_b - b;
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vint delta_l = dr * 27 + dg * 92 + db * 9;
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vint delta_cr = dr * 128 - delta_l;
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vint delta_cb = db * 128 - delta_l;
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vint id = ((delta_l * delta_l) >> 7) +
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((((delta_cr * delta_cr) >> 7) * 26) >> 7) +
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((((delta_cb * delta_cb) >> 7) * 3) >> 7);
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*pDistance += reduce_add(id);
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if (*pDistance >= early_out_err)
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return;
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}
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for (; i < n; i++)
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{
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int r = pSrc_pixels[i].r, g = pSrc_pixels[i].g, b = pSrc_pixels[i].b;
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int sel = pSelectors[i];
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int base_r = pBlock_colors[sel].r, base_g = pBlock_colors[sel].g, base_b = pBlock_colors[sel].b;
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int dr = base_r - r;
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int dg = base_g - g;
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int db = base_b - b;
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int delta_l = dr * 27 + dg * 92 + db * 9;
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int delta_cr = dr * 128 - delta_l;
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int delta_cb = db * 128 - delta_l;
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int id = ((delta_l * delta_l) >> 7) +
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((((delta_cr * delta_cr) >> 7) * 26) >> 7) +
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((((delta_cb * delta_cb) >> 7) * 3) >> 7);
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*pDistance += id;
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if (*pDistance >= early_out_err)
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return;
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}
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}
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};
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struct linear_distance_rgb_4_N : spmd_kernel
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{
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void _call(int64_t* pDistance,
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const uint8_t* pSelectors,
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const color_rgba* pBlock_colors,
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const color_rgba* pSrc_pixels, uint32_t n,
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int64_t early_out_err)
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{
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assert(early_out_err >= 0);
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*pDistance = 0;
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__m128i block_colors[4];
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vint block_colors_r[4], block_colors_g[4], block_colors_b[4];
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for (uint32_t i = 0; i < 4; i++)
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{
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block_colors[i] = load_rgba32(&pBlock_colors[i]);
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store_all(block_colors_r[i], (int)pBlock_colors[i].r);
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store_all(block_colors_g[i], (int)pBlock_colors[i].g);
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store_all(block_colors_b[i], (int)pBlock_colors[i].b);
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}
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uint32_t i;
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for (i = 0; (i + 4) <= n; i += 4)
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{
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__m128i c0 = load_rgba32(&pSrc_pixels[i + 0]), c1 = load_rgba32(&pSrc_pixels[i + 1]), c2 = load_rgba32(&pSrc_pixels[i + 2]), c3 = load_rgba32(&pSrc_pixels[i + 3]);
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vint r, g, b, a;
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transpose4x4(r.m_value, g.m_value, b.m_value, a.m_value, c0, c1, c2, c3);
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int s0 = pSelectors[i], s1 = pSelectors[i + 1], s2 = pSelectors[i + 2], s3 = pSelectors[i + 3];
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vint base_r, base_g, base_b, base_a;
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if ((s0 == s1) && (s0 == s2) && (s0 == s3))
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{
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store_all(base_r, block_colors_r[s0]);
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store_all(base_g, block_colors_g[s0]);
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store_all(base_b, block_colors_b[s0]);
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}
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else
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{
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__m128i k0 = block_colors[s0], k1 = block_colors[s1], k2 = block_colors[s2], k3 = block_colors[s3];
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transpose4x4(base_r.m_value, base_g.m_value, base_b.m_value, base_a.m_value, k0, k1, k2, k3);
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}
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vint dr = base_r - r;
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vint dg = base_g - g;
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vint db = base_b - b;
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vint id = dr * dr + dg * dg + db * db;
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*pDistance += reduce_add(id);
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if (*pDistance >= early_out_err)
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return;
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}
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for (; i < n; i++)
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{
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int r = pSrc_pixels[i].r, g = pSrc_pixels[i].g, b = pSrc_pixels[i].b;
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int sel = pSelectors[i];
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int base_r = pBlock_colors[sel].r, base_g = pBlock_colors[sel].g, base_b = pBlock_colors[sel].b;
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int dr = base_r - r;
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int dg = base_g - g;
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int db = base_b - b;
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int id = dr * dr + dg * dg + db * db;
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*pDistance += id;
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if (*pDistance >= early_out_err)
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return;
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}
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}
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};
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struct find_selectors_perceptual_rgb_4_N : spmd_kernel
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{
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inline vint compute_dist(
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const vint& base_r, const vint& base_g, const vint& base_b,
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const vint& r, const vint& g, const vint& b)
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{
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vint dr = base_r - r;
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vint dg = base_g - g;
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vint db = base_b - b;
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vint delta_l = dr * 27 + dg * 92 + db * 9;
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vint delta_cr = dr * 128 - delta_l;
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vint delta_cb = db * 128 - delta_l;
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vint id = VINT_SHIFT_RIGHT(delta_l * delta_l, 7) +
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VINT_SHIFT_RIGHT(VINT_SHIFT_RIGHT(delta_cr * delta_cr, 7) * 26, 7) +
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VINT_SHIFT_RIGHT(VINT_SHIFT_RIGHT(delta_cb * delta_cb, 7) * 3, 7);
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return id;
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}
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void _call(int64_t* pDistance,
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uint8_t* pSelectors,
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const color_rgba* pBlock_colors,
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const color_rgba* pSrc_pixels, uint32_t n,
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int64_t early_out_err)
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{
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assert(early_out_err >= 0);
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*pDistance = 0;
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vint block_colors_r[4], block_colors_g[4], block_colors_b[4];
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for (uint32_t i = 0; i < 4; i++)
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{
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store_all(block_colors_r[i], (int)pBlock_colors[i].r);
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store_all(block_colors_g[i], (int)pBlock_colors[i].g);
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store_all(block_colors_b[i], (int)pBlock_colors[i].b);
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}
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const __m128i shuf = _mm_set_epi8(-128, -128, -128, -128, -128, -128, -128, -128, -128, -128, -128, -128, 12, 8, 4, 0);
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uint32_t i;
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for (i = 0; (i + 4) <= n; i += 4)
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{
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__m128i c0 = load_rgba32(&pSrc_pixels[i + 0]), c1 = load_rgba32(&pSrc_pixels[i + 1]), c2 = load_rgba32(&pSrc_pixels[i + 2]), c3 = load_rgba32(&pSrc_pixels[i + 3]);
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vint r, g, b, a;
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transpose4x4(r.m_value, g.m_value, b.m_value, a.m_value, c0, c1, c2, c3);
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vint dist0 = compute_dist(block_colors_r[0], block_colors_g[0], block_colors_b[0], r, g, b);
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vint dist1 = compute_dist(block_colors_r[1], block_colors_g[1], block_colors_b[1], r, g, b);
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vint dist2 = compute_dist(block_colors_r[2], block_colors_g[2], block_colors_b[2], r, g, b);
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vint dist3 = compute_dist(block_colors_r[3], block_colors_g[3], block_colors_b[3], r, g, b);
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vint min_dist = min(min(min(dist0, dist1), dist2), dist3);
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vint sels = spmd_ternaryi(min_dist == dist0, 0, spmd_ternaryi(min_dist == dist1, 1, spmd_ternaryi(min_dist == dist2, 2, 3)));
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__m128i vsels = shuffle_epi8(sels.m_value, shuf);
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storeu_si32((void *)(pSelectors + i), vsels);
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*pDistance += reduce_add(min_dist);
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if (*pDistance >= early_out_err)
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return;
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}
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for (; i < n; i++)
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{
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int r = pSrc_pixels[i].r, g = pSrc_pixels[i].g, b = pSrc_pixels[i].b;
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int best_err = INT_MAX, best_sel = 0;
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for (int sel = 0; sel < 4; sel++)
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{
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int base_r = pBlock_colors[sel].r, base_g = pBlock_colors[sel].g, base_b = pBlock_colors[sel].b;
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int dr = base_r - r;
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int dg = base_g - g;
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int db = base_b - b;
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int delta_l = dr * 27 + dg * 92 + db * 9;
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int delta_cr = dr * 128 - delta_l;
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int delta_cb = db * 128 - delta_l;
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int id = ((delta_l * delta_l) >> 7) +
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((((delta_cr * delta_cr) >> 7) * 26) >> 7) +
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((((delta_cb * delta_cb) >> 7) * 3) >> 7);
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if (id < best_err)
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{
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best_err = id;
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best_sel = sel;
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}
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}
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pSelectors[i] = (uint8_t)best_sel;
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*pDistance += best_err;
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if (*pDistance >= early_out_err)
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return;
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}
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}
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};
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struct find_selectors_linear_rgb_4_N : spmd_kernel
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{
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inline vint compute_dist(
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const vint& base_r, const vint& base_g, const vint& base_b,
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const vint& r, const vint& g, const vint& b)
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{
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vint dr = base_r - r;
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vint dg = base_g - g;
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vint db = base_b - b;
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vint id = dr * dr + dg * dg + db * db;
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return id;
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}
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void _call(int64_t* pDistance,
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uint8_t* pSelectors,
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const color_rgba* pBlock_colors,
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const color_rgba* pSrc_pixels, uint32_t n,
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int64_t early_out_err)
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{
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assert(early_out_err >= 0);
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*pDistance = 0;
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vint block_colors_r[4], block_colors_g[4], block_colors_b[4];
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for (uint32_t i = 0; i < 4; i++)
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{
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store_all(block_colors_r[i], (int)pBlock_colors[i].r);
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store_all(block_colors_g[i], (int)pBlock_colors[i].g);
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store_all(block_colors_b[i], (int)pBlock_colors[i].b);
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}
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const __m128i shuf = _mm_set_epi8(-128, -128, -128, -128, -128, -128, -128, -128, -128, -128, -128, -128, 12, 8, 4, 0);
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uint32_t i;
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for (i = 0; (i + 4) <= n; i += 4)
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{
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__m128i c0 = load_rgba32(&pSrc_pixels[i + 0]), c1 = load_rgba32(&pSrc_pixels[i + 1]), c2 = load_rgba32(&pSrc_pixels[i + 2]), c3 = load_rgba32(&pSrc_pixels[i + 3]);
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vint r, g, b, a;
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transpose4x4(r.m_value, g.m_value, b.m_value, a.m_value, c0, c1, c2, c3);
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vint dist0 = compute_dist(block_colors_r[0], block_colors_g[0], block_colors_b[0], r, g, b);
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vint dist1 = compute_dist(block_colors_r[1], block_colors_g[1], block_colors_b[1], r, g, b);
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vint dist2 = compute_dist(block_colors_r[2], block_colors_g[2], block_colors_b[2], r, g, b);
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vint dist3 = compute_dist(block_colors_r[3], block_colors_g[3], block_colors_b[3], r, g, b);
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vint min_dist = min(min(min(dist0, dist1), dist2), dist3);
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vint sels = spmd_ternaryi(min_dist == dist0, 0, spmd_ternaryi(min_dist == dist1, 1, spmd_ternaryi(min_dist == dist2, 2, 3)));
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__m128i vsels = shuffle_epi8(sels.m_value, shuf);
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storeu_si32((void *)(pSelectors + i), vsels);
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*pDistance += reduce_add(min_dist);
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if (*pDistance >= early_out_err)
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return;
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}
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for (; i < n; i++)
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{
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int r = pSrc_pixels[i].r, g = pSrc_pixels[i].g, b = pSrc_pixels[i].b;
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int best_err = INT_MAX, best_sel = 0;
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for (int sel = 0; sel < 4; sel++)
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{
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int base_r = pBlock_colors[sel].r, base_g = pBlock_colors[sel].g, base_b = pBlock_colors[sel].b;
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int dr = base_r - r;
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int dg = base_g - g;
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int db = base_b - b;
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int id = dr * dr + dg * dg + db * db;
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if (id < best_err)
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{
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best_err = id;
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best_sel = sel;
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}
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}
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pSelectors[i] = (uint8_t)best_sel;
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*pDistance += best_err;
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if (*pDistance >= early_out_err)
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return;
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}
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}
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};
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struct find_lowest_error_perceptual_rgb_4_N : spmd_kernel
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{
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inline vint compute_dist(
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const vint& base_r, const vint& base_g, const vint& base_b,
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const vint& r, const vint& g, const vint& b)
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{
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vint dr = base_r - r;
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vint dg = base_g - g;
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vint db = base_b - b;
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vint delta_l = dr * 27 + dg * 92 + db * 9;
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vint delta_cr = dr * 128 - delta_l;
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vint delta_cb = db * 128 - delta_l;
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vint id = VINT_SHIFT_RIGHT(delta_l * delta_l, 7) +
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VINT_SHIFT_RIGHT(VINT_SHIFT_RIGHT(delta_cr * delta_cr, 7) * 26, 7) +
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VINT_SHIFT_RIGHT(VINT_SHIFT_RIGHT(delta_cb * delta_cb, 7) * 3, 7);
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return id;
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}
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void _call(int64_t* pDistance,
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const color_rgba* pBlock_colors,
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const color_rgba* pSrc_pixels, uint32_t n,
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int64_t early_out_error)
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{
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assert(early_out_error >= 0);
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*pDistance = 0;
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vint block_colors_r[4], block_colors_g[4], block_colors_b[4];
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for (uint32_t i = 0; i < 4; i++)
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{
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store_all(block_colors_r[i], (int)pBlock_colors[i].r);
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store_all(block_colors_g[i], (int)pBlock_colors[i].g);
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store_all(block_colors_b[i], (int)pBlock_colors[i].b);
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}
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uint32_t i;
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for (i = 0; (i + 4) <= n; i += 4)
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{
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__m128i c0 = load_rgba32(&pSrc_pixels[i + 0]), c1 = load_rgba32(&pSrc_pixels[i + 1]), c2 = load_rgba32(&pSrc_pixels[i + 2]), c3 = load_rgba32(&pSrc_pixels[i + 3]);
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vint r, g, b, a;
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transpose4x4(r.m_value, g.m_value, b.m_value, a.m_value, c0, c1, c2, c3);
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|
vint dist0 = compute_dist(block_colors_r[0], block_colors_g[0], block_colors_b[0], r, g, b);
|
|
vint dist1 = compute_dist(block_colors_r[1], block_colors_g[1], block_colors_b[1], r, g, b);
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|
vint dist2 = compute_dist(block_colors_r[2], block_colors_g[2], block_colors_b[2], r, g, b);
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|
vint dist3 = compute_dist(block_colors_r[3], block_colors_g[3], block_colors_b[3], r, g, b);
|
|
|
|
vint min_dist = min(min(min(dist0, dist1), dist2), dist3);
|
|
|
|
*pDistance += reduce_add(min_dist);
|
|
if (*pDistance > early_out_error)
|
|
return;
|
|
}
|
|
|
|
for (; i < n; i++)
|
|
{
|
|
int r = pSrc_pixels[i].r, g = pSrc_pixels[i].g, b = pSrc_pixels[i].b;
|
|
|
|
int best_err = INT_MAX;
|
|
for (int sel = 0; sel < 4; sel++)
|
|
{
|
|
int base_r = pBlock_colors[sel].r, base_g = pBlock_colors[sel].g, base_b = pBlock_colors[sel].b;
|
|
|
|
int dr = base_r - r;
|
|
int dg = base_g - g;
|
|
int db = base_b - b;
|
|
|
|
int delta_l = dr * 27 + dg * 92 + db * 9;
|
|
int delta_cr = dr * 128 - delta_l;
|
|
int delta_cb = db * 128 - delta_l;
|
|
|
|
int id = ((delta_l * delta_l) >> 7) +
|
|
((((delta_cr * delta_cr) >> 7) * 26) >> 7) +
|
|
((((delta_cb * delta_cb) >> 7) * 3) >> 7);
|
|
|
|
if (id < best_err)
|
|
{
|
|
best_err = id;
|
|
}
|
|
}
|
|
|
|
*pDistance += best_err;
|
|
if (*pDistance > early_out_error)
|
|
return;
|
|
}
|
|
}
|
|
};
|
|
|
|
struct find_lowest_error_linear_rgb_4_N : spmd_kernel
|
|
{
|
|
inline vint compute_dist(
|
|
const vint& base_r, const vint& base_g, const vint& base_b,
|
|
const vint& r, const vint& g, const vint& b)
|
|
{
|
|
vint dr = base_r - r;
|
|
vint dg = base_g - g;
|
|
vint db = base_b - b;
|
|
|
|
vint id = dr * dr + dg * dg + db * db;
|
|
|
|
return id;
|
|
}
|
|
|
|
void _call(int64_t* pDistance,
|
|
const color_rgba* pBlock_colors,
|
|
const color_rgba* pSrc_pixels, uint32_t n,
|
|
int64_t early_out_error)
|
|
{
|
|
assert(early_out_error >= 0);
|
|
|
|
*pDistance = 0;
|
|
|
|
vint block_colors_r[4], block_colors_g[4], block_colors_b[4];
|
|
for (uint32_t i = 0; i < 4; i++)
|
|
{
|
|
store_all(block_colors_r[i], (int)pBlock_colors[i].r);
|
|
store_all(block_colors_g[i], (int)pBlock_colors[i].g);
|
|
store_all(block_colors_b[i], (int)pBlock_colors[i].b);
|
|
}
|
|
|
|
uint32_t i;
|
|
|
|
for (i = 0; (i + 4) <= n; i += 4)
|
|
{
|
|
__m128i c0 = load_rgba32(&pSrc_pixels[i + 0]), c1 = load_rgba32(&pSrc_pixels[i + 1]), c2 = load_rgba32(&pSrc_pixels[i + 2]), c3 = load_rgba32(&pSrc_pixels[i + 3]);
|
|
|
|
vint r, g, b, a;
|
|
transpose4x4(r.m_value, g.m_value, b.m_value, a.m_value, c0, c1, c2, c3);
|
|
|
|
vint dist0 = compute_dist(block_colors_r[0], block_colors_g[0], block_colors_b[0], r, g, b);
|
|
vint dist1 = compute_dist(block_colors_r[1], block_colors_g[1], block_colors_b[1], r, g, b);
|
|
vint dist2 = compute_dist(block_colors_r[2], block_colors_g[2], block_colors_b[2], r, g, b);
|
|
vint dist3 = compute_dist(block_colors_r[3], block_colors_g[3], block_colors_b[3], r, g, b);
|
|
|
|
vint min_dist = min(min(min(dist0, dist1), dist2), dist3);
|
|
|
|
*pDistance += reduce_add(min_dist);
|
|
if (*pDistance > early_out_error)
|
|
return;
|
|
}
|
|
|
|
for (; i < n; i++)
|
|
{
|
|
int r = pSrc_pixels[i].r, g = pSrc_pixels[i].g, b = pSrc_pixels[i].b;
|
|
|
|
int best_err = INT_MAX;
|
|
for (int sel = 0; sel < 4; sel++)
|
|
{
|
|
int base_r = pBlock_colors[sel].r, base_g = pBlock_colors[sel].g, base_b = pBlock_colors[sel].b;
|
|
|
|
int dr = base_r - r;
|
|
int dg = base_g - g;
|
|
int db = base_b - b;
|
|
|
|
int id = dr * dr + dg * dg + db * db;
|
|
|
|
if (id < best_err)
|
|
{
|
|
best_err = id;
|
|
}
|
|
}
|
|
|
|
*pDistance += best_err;
|
|
if (*pDistance > early_out_error)
|
|
return;
|
|
}
|
|
}
|
|
};
|
|
|
|
} // namespace
|
|
|
|
using namespace CPPSPMD_NAME(basisu_kernels_namespace);
|
|
|
|
void CPPSPMD_NAME(perceptual_distance_rgb_4_N)(int64_t* pDistance, const uint8_t* pSelectors, const color_rgba* pBlock_colors, const color_rgba* pSrc_pixels, uint32_t n, int64_t early_out_err)
|
|
{
|
|
spmd_call< perceptual_distance_rgb_4_N >(pDistance, pSelectors, pBlock_colors, pSrc_pixels, n, early_out_err);
|
|
}
|
|
|
|
void CPPSPMD_NAME(linear_distance_rgb_4_N)(int64_t* pDistance, const uint8_t* pSelectors, const color_rgba* pBlock_colors, const color_rgba* pSrc_pixels, uint32_t n, int64_t early_out_err)
|
|
{
|
|
spmd_call< linear_distance_rgb_4_N >(pDistance, pSelectors, pBlock_colors, pSrc_pixels, n, early_out_err);
|
|
}
|
|
|
|
void CPPSPMD_NAME(find_selectors_perceptual_rgb_4_N)(int64_t *pDistance, uint8_t* pSelectors, const color_rgba* pBlock_colors, const color_rgba* pSrc_pixels, uint32_t n, int64_t early_out_err)
|
|
{
|
|
spmd_call< find_selectors_perceptual_rgb_4_N >(pDistance, pSelectors, pBlock_colors, pSrc_pixels, n, early_out_err);
|
|
}
|
|
|
|
void CPPSPMD_NAME(find_selectors_linear_rgb_4_N)(int64_t* pDistance, uint8_t* pSelectors, const color_rgba* pBlock_colors, const color_rgba* pSrc_pixels, uint32_t n, int64_t early_out_err)
|
|
{
|
|
spmd_call< find_selectors_linear_rgb_4_N >(pDistance, pSelectors, pBlock_colors, pSrc_pixels, n, early_out_err);
|
|
}
|
|
|
|
void CPPSPMD_NAME(find_lowest_error_perceptual_rgb_4_N)(int64_t* pDistance, const color_rgba* pBlock_colors, const color_rgba* pSrc_pixels, uint32_t n, int64_t early_out_error)
|
|
{
|
|
spmd_call< find_lowest_error_perceptual_rgb_4_N >(pDistance, pBlock_colors, pSrc_pixels, n, early_out_error);
|
|
}
|
|
|
|
void CPPSPMD_NAME(find_lowest_error_linear_rgb_4_N)(int64_t* pDistance, const color_rgba* pBlock_colors, const color_rgba* pSrc_pixels, uint32_t n, int64_t early_out_error)
|
|
{
|
|
spmd_call< find_lowest_error_linear_rgb_4_N >(pDistance, pBlock_colors, pSrc_pixels, n, early_out_error);
|
|
}
|
|
|