1 files changed, 95 insertions, 0 deletions
diff --git a/src/resources/dye/dyepalette_replacescolor_avx2.hpp b/src/resources/dye/dyepalette_replacescolor_avx2.hpp
new file mode 100644
index 000000000..aeed065f3
--- /dev/null
+++ b/src/resources/dye/dyepalette_replacescolor_avx2.hpp
@@ -0,0 +1,95 @@
+/*
+ *  The ManaPlus Client
+ *  Copyright (C) 2011-2016  The ManaPlus Developers
+ *
+ *  This file is part of The ManaPlus Client.
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+    std::vector<DyeColor>::const_iterator it_end = mColors.end();
+    const size_t sz = mColors.size();
+    if (!sz || !pixels)
+        return;
+    if (sz % 2)
+        -- it_end;
+    const int mod = bufSize % 8;
+    const int bufEnd = bufSize - mod;
+
+    for (int ptr = 0; ptr < bufEnd; ptr += 8)
+    {
+        __m256i mask = _mm256_set1_epi32(0xffffff00);
+//        __m256i base = _mm256_load_si256(reinterpret_cast<__m256i*>(pixels));
+        __m256i base = _mm256_loadu_si256(reinterpret_cast<__m256i*>(
+            &pixels[ptr]));
+
+        std::vector<DyeColor>::const_iterator it = mColors.begin();
+        while (it != it_end)
+        {
+            const DyeColor &col = *it;
+            ++ it;
+            const DyeColor &col2 = *it;
+
+            __m256i base2 = _mm256_and_si256(mask, base);
+            __m256i newMask = _mm256_set1_epi32(col2.valueS);
+            __m256i cmpMask = _mm256_set1_epi32(col.valueS);
+            __m256i cmpRes = _mm256_cmpeq_epi32(base2, cmpMask);
+            cmpRes = _mm256_and_si256(mask, cmpRes);
+            __m256i srcAnd = _mm256_andnot_si256(cmpRes, base);
+            __m256i dstAnd = _mm256_and_si256(cmpRes, newMask);
+            base = _mm256_or_si256(srcAnd, dstAnd);
+            ++ it;
+        }
+//        _mm256_store_si256(reinterpret_cast<__m256i*>(pixels), base);
+        _mm256_storeu_si256(reinterpret_cast<__m256i*>(&pixels[ptr]), base);
+    }
+
+    // complete end without simd
+    for (int ptr = bufSize - mod; ptr < bufSize; ptr ++)
+    {
+        uint8_t *const p = reinterpret_cast<uint8_t *>(&pixels[ptr]);
+#if SDL_BYTEORDER == SDL_BIG_ENDIAN
+        const unsigned int data = pixels[ptr] & 0x00ffffff;
+#else  // SDL_BYTEORDER == SDL_BIG_ENDIAN
+
+        const unsigned int data = pixels[ptr] & 0xffffff00;
+#endif  // SDL_BYTEORDER == SDL_BIG_ENDIAN
+
+        std::vector<DyeColor>::const_iterator it = mColors.begin();
+        while (it != it_end)
+        {
+            const DyeColor &col = *it;
+            ++ it;
+            const DyeColor &col2 = *it;
+
+#if SDL_BYTEORDER == SDL_BIG_ENDIAN
+            const unsigned int coldata = (col.value[2] << 16U)
+                | (col.value[1] << 8U) | (col.value[0]);
+#else  // SDL_BYTEORDER == SDL_BIG_ENDIAN
+
+            const unsigned int coldata = (col.value[2] << 8U)
+                | (col.value[1] << 16U) | (col.value[0] << 24U);
+#endif  // SDL_BYTEORDER == SDL_BIG_ENDIAN
+
+            if (data == coldata)
+            {
+                p[3] = col2.value[0];
+                p[2] = col2.value[1];
+                p[1] = col2.value[2];
+                break;
+            }
+
+            ++ it;
+        }
+    }