Mercurial > mm7

changeset 1149:05b30ed00d7c

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sub_451007_scale_image_bicubic cleanup - changing if+dowhile pair to for
author Grumpy7
date Sun, 02 Jun 2013 05:22:35 +0200
parents ee6bccef32e8
children 354ec6263123
files mm7_2.cpp
diffstat 1 files changed, 53 insertions(+), 64 deletions(-) [+]
line wrap: on
line diff
--- a/mm7_2.cpp	Sun Jun 02 05:01:51 2013 +0200
+++ b/mm7_2.cpp	Sun Jun 02 05:22:35 2013 +0200
@@ -2168,7 +2168,6 @@
                                             int a10, int a11)
 {
   int result; // eax@1
-  int v14; // ecx@10
   float v17; // ST3C_4@12
   float v18; // ST38_4@12
   unsigned int v19; // esi@12
@@ -2224,69 +2223,59 @@
     return result;
   do
   {
-    v14 = 0;
-    if ( dstWidth > 0 )
-    {
-	    do
-	    {
-	      a6s = (double)v14 / (double)dstWidth * (double)srcWidth;
-	      widthRatio = bankersRounding(a6s);
-	      a6t = (double)(v14 + 1) / (double)dstWidth * (double)srcWidth;
-	      widthRatioPlusOne = bankersRounding(a6t);
-	      v17 = (double)v231 / (double)dstHeight * (double)srcHeight;
-	      heightRatio = bankersRounding(v17);
-	      v18 = (double)(v231 + 1) / (double)dstHeight * (double)srcHeight;
-	      heightRatioPlusOne = bankersRounding(v18);
-	      v251 = 0;
-	      v19 = (heightRatioPlusOne - heightRatio) * (widthRatioPlusOne - widthRatio);
-	      v252 = 0;
-	      a6b = 0;
-	      v240 = 0i64;
-	      if ( heightRatio < heightRatioPlusOne )
-	      {
-          v160 = heightRatioPlusOne - heightRatio;
-          v175 = (unsigned short*)((char *)pSrc + field_0_bits * (widthRatio + srcPitch * heightRatio));
-	        do
-	        {          
-	          int ratioDiff = widthRatioPlusOne - widthRatio;
-	          for(int i = 0; i < ratioDiff; i++)
-	          {
-	            if(field0value == 32)
-	              v21 = _450FB1((int)v175[i]);
-	            else if(field0value == 16)
-	              v21 = _450FB1((_WORD)v175[i]);
-	            else
-	              v21 = _450FB1((unsigned __int8)v175[i]);
-	            v240 += ((unsigned int)v21 >> 24);
-	            a6b += BYTE2(v21);
-	            v252 += BYTE1(v21);
-	            v251 += (unsigned __int8)v21;
-	          }
-	          if(field0value == 32)
-	            v175 += 2 * srcPitch;
-	          else if(field0value == 16)
-	            v175 += srcPitch;   
-	          else
-	            v175 = (unsigned short*)((char *)v175 + 2 * srcPitch);
-	          --v160;
-	        }
-	        while ( v160 );
-	      }
-	      v22 = (unsigned int)v240 / ((heightRatioPlusOne - heightRatio) * (widthRatioPlusOne - widthRatio));
-	      if ( v19 )
-	      {
-	        a6b /= v19;
-	        v252 /= v19;
-	        v251 /= v19;
-	      }
-	      if ( v22 != 255 )
-	        v22 &= 0x7FFFFFFFu;
-	      v23 = _450F55(v251 | ((v252 | ((a6b | (v22 << 8)) << 8)) << 8));
-	      *(_DWORD *)v193 = v23;
-        v193 = (unsigned __int16 *)((char *)v193 + field_20_bits);
-	      ++v14;
-	    }
-	    while ( v14 < dstWidth );
+    for (int counter = 0; counter < dstWidth; counter++)
+    {
+      a6s = (double)counter / (double)dstWidth * (double)srcWidth;
+      widthRatio = bankersRounding(a6s);
+      a6t = (double)(counter + 1) / (double)dstWidth * (double)srcWidth;
+      widthRatioPlusOne = bankersRounding(a6t);
+      v17 = (double)v231 / (double)dstHeight * (double)srcHeight;
+      heightRatio = bankersRounding(v17);
+      v18 = (double)(v231 + 1) / (double)dstHeight * (double)srcHeight;
+      heightRatioPlusOne = bankersRounding(v18);
+      v251 = 0;
+      v19 = (heightRatioPlusOne - heightRatio) * (widthRatioPlusOne - widthRatio);
+      v252 = 0;
+      a6b = 0;
+      v240 = 0i64;
+
+      v175 = (unsigned short*)((char *)pSrc + field_0_bits * (widthRatio + srcPitch * heightRatio));
+      for (int heightDiff = 0; heightDiff < heightRatioPlusOne - heightRatio; heightDiff++)
+      {
+        int ratioDiff = widthRatioPlusOne - widthRatio;
+        for(int i = 0; i < ratioDiff; i++)
+        {
+          if(field0value == 32)
+            v21 = _450FB1((int)v175[i]);
+          else if(field0value == 16)
+            v21 = _450FB1((_WORD)v175[i]);
+          else
+            v21 = _450FB1((unsigned __int8)v175[i]);
+          v240 += ((unsigned int)v21 >> 24);
+          a6b += BYTE2(v21);
+          v252 += BYTE1(v21);
+          v251 += (unsigned __int8)v21;
+        }
+        if(field0value == 32)
+          v175 += 2 * srcPitch;
+        else if(field0value == 16)
+          v175 += srcPitch;   
+        else
+          v175 = (unsigned short*)((char *)v175 + 2 * srcPitch);
+      }
+      v22 = (unsigned int)v240 / ((heightRatioPlusOne - heightRatio) * (widthRatioPlusOne - widthRatio));
+      assert(v19 < 2);
+      if ( v19 )
+      {
+        a6b /= v19;
+        v252 /= v19;
+        v251 /= v19;
+      }
+      if ( v22 != 255 )
+        v22 &= 0x7FFFFFFFu;
+      v23 = _450F55(v251 | ((v252 | ((a6b | (v22 << 8)) << 8)) << 8));
+      *(_DWORD *)v193 = v23;
+      v193 = (unsigned __int16 *)((char *)v193 + field_20_bits);
     }
     v193 = (unsigned __int16 *)((char *)v193 + field_20_bits * (dstPitch - dstWidth));
     ++v231;