very very minor optimization?

melonDS-emu · Aug 6, 2024 · 5b8bd44 · 5b8bd44
1 parent dd386d1
commit 5b8bd44
Showing 1 changed file with 7 additions and 7 deletions.
diff --git a/src/GPU3D_Soft.h b/src/GPU3D_Soft.h
@@ -101,15 +101,15 @@ class SoftRenderer : public Renderer3D
 
                 if ((w0 & 0x1) && !(w1 & 0x1))
                 {
-                    this->w0n = w0 - 1;
-                    this->w0d = w0 + 1;
-                    this->w1d = w1;
+                    this->w0n = w0 - 1 >> 1;
+                    this->w0d = w0 + 1 >> 1;
+                    this->w1d = w1 >> 1;
                 }
                 else
                 {
-                    this->w0n = w0 & 0xFFFE;
-                    this->w0d = w0 & 0xFFFE;
-                    this->w1d = w1 & 0xFFFE;
+                    this->w0n = w0 >> 1;
+                    this->w0d = w0 >> 1;
+                    this->w1d = w1 >> 1;
                 }
 
                 this->shift = 9;
@@ -138,7 +138,7 @@ class SoftRenderer : public Renderer3D
                 // this seems to be a proper division on hardware :/
                 // I haven't been able to find cases that produce imperfect output
                 if (den == 0) yfactor = 0;
-                else          yfactor = (s32)(num / den);
+                else          yfactor = ((u32)num / den);
             }
         }