Add simd function for dye replaceacolor (OpenGL).

3 files changed, 233 insertions, 93 deletions

diff --git a/src/resources/dye/dyepalette.cpp b/src/resources/dye/dyepalette.cpp
index ff9ad9c32..76f82b439 100644
--- a/src/resources/dye/dyepalette.cpp
+++ b/src/resources/dye/dyepalette.cpp
@@ -223,96 +223,3 @@ void DyePalette::getColor(double intensity,
     color[2] = CAST_S32(rest * colorI.value[2] +
         intensity * colorJ.value[2]);
 }
-
-void DyePalette::replaceAOGLColor(uint32_t *restrict pixels,
-                                  const int bufSize) const restrict2
-{
-    std::vector<DyeColor>::const_iterator it_end = mColors.end();
-    const size_t sz = mColors.size();
-    if (!sz || !pixels)
-        return;
-    if (sz % 2)
-        -- it_end;
-
-#ifdef ENABLE_CILKPLUS
-    cilk_for (int ptr = 0; ptr < bufSize; ptr ++)
-    {
-        uint8_t *const p = reinterpret_cast<uint8_t *>(&pixels[ptr]);
-        const unsigned int data = pixels[ptr];
-
-        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[0] << 24U)
-                | (col.value[1] << 16U)
-                | (col.value[2] << 8U)
-                | col.value[3];
-#else  // SDL_BYTEORDER == SDL_BIG_ENDIAN
-
-            const unsigned int coldata = (col.value[0])
-                | (col.value[1] << 8U)
-                | (col.value[2] << 16U)
-                | (col.value[3] << 24U);
-#endif  // SDL_BYTEORDER == SDL_BIG_ENDIAN
-
-            if (data == coldata)
-            {
-                p[0] = col2.value[0];
-                p[1] = col2.value[1];
-                p[2] = col2.value[2];
-                p[3] = col2.value[3];
-                break;
-            }
-
-            ++ it;
-        }
-    }
-
-#else  // ENABLE_CILKPLUS
-
-    for (const uint32_t *const p_end = pixels + CAST_SIZE(bufSize);
-         pixels != p_end;
-         ++pixels)
-    {
-        uint8_t *const p = reinterpret_cast<uint8_t *>(pixels);
-        const unsigned int data = *pixels;
-
-        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[0] << 24U)
-                | (col.value[1] << 16U)
-                | (col.value[2] << 8U)
-                | col.value[3];
-#else  // SDL_BYTEORDER == SDL_BIG_ENDIAN
-
-            const unsigned int coldata = (col.value[0])
-                | (col.value[1] << 8U)
-                | (col.value[2] << 16U)
-                | (col.value[3] << 24U);
-#endif  // SDL_BYTEORDER == SDL_BIG_ENDIAN
-
-            if (data == coldata)
-            {
-                p[0] = col2.value[0];
-                p[1] = col2.value[1];
-                p[2] = col2.value[2];
-                p[3] = col2.value[3];
-                break;
-            }
-
-            ++ it;
-        }
-    }
-#endif  // ENABLE_CILKPLUS
-}
diff --git a/src/resources/dye/dyepalette.h b/src/resources/dye/dyepalette.h
index edfe6b5ac..07085e7b6 100644
--- a/src/resources/dye/dyepalette.h
+++ b/src/resources/dye/dyepalette.h
@@ -149,6 +149,28 @@ class DyePalette final
         void replaceAOGLColor(uint32_t *restrict pixels,
                               const int bufSize) const restrict2;
 
+        /**
+         * replace colors for OpenGL for A dye.
+         */
+        void replaceAOGLColorDefault(uint32_t *restrict pixels,
+                                     const int bufSize) const restrict2;
+
+        /**
+         * replace colors for OpenGL for A dye.
+         */
+        FUNCTION_SIMD_DEFAULT
+        void replaceAOGLColorSimd(uint32_t *restrict pixels,
+                                  const int bufSize) const restrict2;
+
+#ifdef SIMD_SUPPORTED
+        /**
+         * replace colors for OpenGL for A dye.
+         */
+        __attribute__ ((target ("avx2")))
+        void replaceAOGLColorSimd(uint32_t *restrict pixels,
+                                  const int bufSize) const restrict2;
+#endif  // SIMD_SUPPORTED
+
         static unsigned int hexDecode(const signed char c)
                                       noexcept2 A_CONST A_WARN_UNUSED;
 
diff --git a/src/resources/dye/dyepalette_replaceaoglcolor.cpp b/src/resources/dye/dyepalette_replaceaoglcolor.cpp
new file mode 100644
index 000000000..2b2d7a54c
--- /dev/null
+++ b/src/resources/dye/dyepalette_replaceaoglcolor.cpp
@@ -0,0 +1,211 @@
+/*
+ *  The ManaPlus Client
+ *  Copyright (C) 2007-2009  The Mana World Development Team
+ *  Copyright (C) 2009-2010  The Mana Developers
+ *  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/>.
+ */
+
+#ifdef USE_OPENGL
+
+#include "resources/dye/dyepalette.h"
+
+#include "logger.h"
+
+#ifndef SDL_BIG_ENDIAN
+#include <SDL_endian.h>
+#endif  // SDL_BYTEORDER
+
+#ifdef __x86_64__
+// avx2
+#include "immintrin.h"
+
+#if SDL_BYTEORDER == SDL_BIG_ENDIAN
+#define buildHex(a, b, c, d) \
+    (d) * 16777216U + (c) * 65536U + (b) * 256U + CAST_U32(a)
+#else  // SDL_BYTEORDER == SDL_BIG_ENDIAN
+#define buildHex(a, b, c, d) \
+    (a) * 16777216U + (b) * 65536U + (c) * 256U + CAST_U32(d)
+#endif  // SDL_BYTEORDER == SDL_BIG_ENDIAN
+#endif  // __x86_64__
+
+#include "debug.h"
+
+void DyePalette::replaceAOGLColor(uint32_t *restrict pixels,
+                                  const int bufSize) const restrict2
+{
+#ifdef SIMD_SUPPORTED
+    if (bufSize >= 8)
+        replaceAOGLColorSimd(pixels, bufSize);
+    else
+        replaceAOGLColorDefault(pixels, bufSize);
+#else  // SIMD_SUPPORTED
+    replaceAOGLColorDefault(pixels, bufSize);
+#endif  // SIMD_SUPPORTED
+}
+
+void DyePalette::replaceAOGLColorDefault(uint32_t *restrict pixels,
+                                         const int bufSize) const restrict2
+{
+    std::vector<DyeColor>::const_iterator it_end = mColors.end();
+    const size_t sz = mColors.size();
+    if (!sz || !pixels)
+        return;
+    if (sz % 2)
+        -- it_end;
+
+#ifdef ENABLE_CILKPLUS
+    cilk_for (int ptr = 0; ptr < bufSize; ptr ++)
+    {
+        uint8_t *const p = reinterpret_cast<uint8_t *>(&pixels[ptr]);
+        const unsigned int data = pixels[ptr];
+
+        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[0] << 24U)
+                | (col.value[1] << 16U)
+                | (col.value[2] << 8U)
+                | col.value[3];
+#else  // SDL_BYTEORDER == SDL_BIG_ENDIAN
+
+            const unsigned int coldata = (col.value[0])
+                | (col.value[1] << 8U)
+                | (col.value[2] << 16U)
+                | (col.value[3] << 24U);
+#endif  // SDL_BYTEORDER == SDL_BIG_ENDIAN
+
+            if (data == coldata)
+            {
+                p[0] = col2.value[0];
+                p[1] = col2.value[1];
+                p[2] = col2.value[2];
+                p[3] = col2.value[3];
+                break;
+            }
+
+            ++ it;
+        }
+    }
+
+#else  // ENABLE_CILKPLUS
+
+    for (const uint32_t *const p_end = pixels + CAST_SIZE(bufSize);
+         pixels != p_end;
+         ++pixels)
+    {
+        uint8_t *const p = reinterpret_cast<uint8_t *>(pixels);
+        const unsigned int data = *pixels;
+
+        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[0] << 24U)
+                | (col.value[1] << 16U)
+                | (col.value[2] << 8U)
+                | col.value[3];
+#else  // SDL_BYTEORDER == SDL_BIG_ENDIAN
+
+            const unsigned int coldata = (col.value[0])
+                | (col.value[1] << 8U)
+                | (col.value[2] << 16U)
+                | (col.value[3] << 24U);
+#endif  // SDL_BYTEORDER == SDL_BIG_ENDIAN
+
+            if (data == coldata)
+            {
+                p[0] = col2.value[0];
+                p[1] = col2.value[1];
+                p[2] = col2.value[2];
+                p[3] = col2.value[3];
+                break;
+            }
+
+            ++ it;
+        }
+    }
+#endif  // ENABLE_CILKPLUS
+}
+
+
+
+#ifdef SIMD_SUPPORTED
+static void print256(const char *const text, const __m256i &val);
+static void print256(const char *const text, const __m256i &val)
+{
+    printf("%s 0x%016llx%016llx%016llx%016llx\n", text, val[0], val[1], val[2], val[3]);
+}
+
+__attribute__ ((target ("avx2")))
+void DyePalette::replaceAOGLColorSimd(uint32_t *restrict pixels,
+                                      const int bufSize) const restrict2
+{
+    std::vector<DyeColor>::const_iterator it_end = mColors.end();
+    const size_t sz = mColors.size();
+    if (!sz || !pixels)
+        return;
+    if (sz % 2)
+        -- it_end;
+
+    for (const uint32_t *const p_end = pixels + CAST_SIZE(bufSize);
+         pixels != p_end;
+         ++pixels)
+    {
+        //__m256i base = _mm256_load_si256(reinterpret_cast<__m256i*>(pixels));
+        __m256i base = _mm256_loadu_si256(reinterpret_cast<__m256i*>(pixels));
+
+        std::vector<DyeColor>::const_iterator it = mColors.begin();
+        while (it != it_end)
+        {
+            const DyeColor &col = *it;
+            ++ it;
+            const DyeColor &col2 = *it;
+
+            __m256i newMask = _mm256_set1_epi32(buildHex(col2.value[3], col2.value[2], col2.value[1], col2.value[0]));
+            __m256i cmpMask = _mm256_set1_epi32(buildHex(col.value[3], col.value[2], col.value[1],  col.value[0]));
+            __m256i cmpRes = _mm256_cmpeq_epi32(base, cmpMask);
+            __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), base);
+    }
+}
+
+#endif  // SIMD_SUPPORTED
+
+FUNCTION_SIMD_DEFAULT
+void DyePalette::replaceAOGLColorSimd(uint32_t *restrict pixels,
+                                      const int bufSize) const restrict2
+{
+    replaceAOGLColorDefault(pixels, bufSize);
+}
+
+#endif  // USE_OPENGL