From fe9994c45c1e464125186ae14e482ae155d9ec53 Mon Sep 17 00:00:00 2001
From: Andrei Karas <akaras@inbox.ru>
Date: Mon, 19 Aug 2013 22:17:05 +0300
Subject: improve a bit normal dye code.

move dye code to methods.
---
 src/resources/dye.cpp               | 99 ++++++++++++++++++++++++++++---------
 src/resources/dye.h                 |  9 ++--
 src/resources/openglimagehelper.cpp | 15 +-----
 src/resources/sdlimagehelper.cpp    | 15 +-----
 4 files changed, 82 insertions(+), 56 deletions(-)

(limited to 'src/resources')

diff --git a/src/resources/dye.cpp b/src/resources/dye.cpp
index 785c15ab9..e57f4afe2 100644
--- a/src/resources/dye.cpp
+++ b/src/resources/dye.cpp
@@ -446,29 +446,6 @@ Dye::~Dye()
     }
 }
 
-void Dye::update(int color[3]) const
-{
-    const int cmax = std::max(color[0], std::max(color[1], color[2]));
-    if (cmax == 0)
-        return;
-
-    const int cmin = std::min(color[0], std::min(color[1], color[2]));
-    const int intensity = color[0] + color[1] + color[2];
-
-    if (cmin != cmax && (cmin != 0 || (intensity != cmax
-        && intensity != 2 * cmax)))
-    {
-        // not pure
-        return;
-    }
-
-    const int i = (color[0] != 0) | ((color[1] != 0) << 1)
-        | ((color[2] != 0) << 2);
-
-    if (mDyePalettes[i - 1])
-        mDyePalettes[i - 1]->getColor(cmax, color);
-}
-
 void Dye::instantiate(std::string &target, const std::string &palettes)
 {
     size_t next_pos = target.find('|');
@@ -527,3 +504,79 @@ int Dye::getType() const
         return 2;
     return 0;
 }
+
+void Dye::normalDye(uint32_t *pixels, const int bufSize) const
+{
+    for (uint32_t *p_end = pixels + bufSize; pixels != p_end; ++ pixels)
+    {
+        const uint32_t p = *pixels;
+        const int alpha = p & 255;
+        if (!alpha)
+            continue;
+        int color[3];
+        color[0] = (p >> 24) & 255;
+        color[1] = (p >> 16) & 255;
+        color[2] = (p >> 8) & 255;
+
+        const int cmax = std::max(color[0], std::max(color[1], color[2]));
+        if (cmax == 0)
+            continue;
+
+        const int cmin = std::min(color[0], std::min(color[1], color[2]));
+        const int intensity = color[0] + color[1] + color[2];
+
+        if (cmin != cmax && (cmin != 0 || (intensity != cmax
+            && intensity != 2 * cmax)))
+        {
+            // not pure
+            continue;
+        }
+
+        const int i = (color[0] != 0) | ((color[1] != 0) << 1)
+            | ((color[2] != 0) << 2);
+
+        if (mDyePalettes[i - 1])
+            mDyePalettes[i - 1]->getColor(cmax, color);
+
+        *pixels = (color[0] << 24) | (color[1] << 16)
+            | (color[2] << 8) | alpha;
+    }
+}
+
+void Dye::normalOGLDye(uint32_t *pixels, const int bufSize) const
+{
+    for (uint32_t *p_end = pixels + bufSize; pixels != p_end; ++ pixels)
+    {
+        const uint32_t p = *pixels;
+        const int alpha = (p >> 24) & 255;
+        if (!alpha)
+            continue;
+        int color[3];
+        color[0] = (p) & 255;
+        color[1] = (p >> 8) & 255;
+        color[2] = (p >> 16) & 255;
+
+        const int cmax = std::max(color[0], std::max(color[1], color[2]));
+        if (cmax == 0)
+            continue;
+
+        const int cmin = std::min(color[0], std::min(color[1], color[2]));
+        const int intensity = color[0] + color[1] + color[2];
+
+        if (cmin != cmax && (cmin != 0 || (intensity != cmax
+            && intensity != 2 * cmax)))
+        {
+            // not pure
+            continue;
+        }
+
+        const int i = (color[0] != 0) | ((color[1] != 0) << 1)
+            | ((color[2] != 0) << 2);
+
+        if (mDyePalettes[i - 1])
+            mDyePalettes[i - 1]->getColor(cmax, color);
+
+        *pixels = (color[0]) | (color[1] << 8)
+            | (color[2] << 16) | (alpha << 24);
+    }
+}
diff --git a/src/resources/dye.h b/src/resources/dye.h
index e8b4ae94e..ba0b378d0 100644
--- a/src/resources/dye.h
+++ b/src/resources/dye.h
@@ -107,11 +107,6 @@ class Dye final
          */
         ~Dye();
 
-        /**
-         * Modifies a pixel color.
-         */
-        void update(int color[3]) const;
-
         /**
          * Fills the blank in a dye placeholder with some palette names.
          */
@@ -135,6 +130,10 @@ class Dye final
          */
         int getType() const A_WARN_UNUSED;
 
+        void normalDye(uint32_t *pixels, const int bufSize) const;
+
+        void normalOGLDye(uint32_t *pixels, const int bufSize) const;
+
     private:
         /**
          * The order of the palettes, as well as their uppercase letter, is:
diff --git a/src/resources/openglimagehelper.cpp b/src/resources/openglimagehelper.cpp
index d392fead1..1180135a0 100644
--- a/src/resources/openglimagehelper.cpp
+++ b/src/resources/openglimagehelper.cpp
@@ -85,20 +85,7 @@ Image *OpenGLImageHelper::load(SDL_RWops *const rw, Dye const &dye) const
         case 0:
         default:
         {
-            for (uint32_t *p_end = pixels + surf->w * surf->h;
-                 pixels != p_end; ++pixels)
-            {
-                const uint32_t p = *pixels;
-                const int alpha = (p >> 24) & 255;
-                if (!alpha)
-                    continue;
-                int v[3];
-                v[0] = (p) & 255;
-                v[1] = (p >> 8) & 255;
-                v[2] = (p >> 16) & 255;
-                dye.update(v);
-                *pixels = (v[0]) | (v[1] << 8) | (v[2] << 16) | (alpha << 24);
-            }
+            dye.normalOGLDye(pixels, surf->w * surf->h);
             break;
         }
     }
diff --git a/src/resources/sdlimagehelper.cpp b/src/resources/sdlimagehelper.cpp
index 7cba9b0dc..ab0b0663b 100644
--- a/src/resources/sdlimagehelper.cpp
+++ b/src/resources/sdlimagehelper.cpp
@@ -92,20 +92,7 @@ Image *SDLImageHelper::load(SDL_RWops *const rw, Dye const &dye) const
         case 0:
         default:
         {
-            for (uint32_t *p_end = pixels + surf->w * surf->h;
-                 pixels != p_end; ++pixels)
-            {
-                const uint32_t p = *pixels;
-                const int alpha = p & 255;
-                if (!alpha)
-                    continue;
-                int v[3];
-                v[0] = (p >> 24) & 255;
-                v[1] = (p >> 16) & 255;
-                v[2] = (p >> 8) & 255;
-                dye.update(v);
-                *pixels = (v[0] << 24) | (v[1] << 16) | (v[2] << 8) | alpha;
-            }
+            dye.normalDye(pixels, surf->w * surf->h);
             break;
         }
     }
-- 
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