first commit

Minecraft.Client/MobSkinMemTextureProcessor.cpp

@@ -0,0 +1,72 @@
+#include "stdafx.h"
+#include "MobSkinMemTextureProcessor.h"
+
+BufferedImage *MobSkinMemTextureProcessor::process(BufferedImage *in)
+{
+    if (in == NULL) return NULL;
+
+    width = 64;
+    height = 32;
+
+    BufferedImage *out = new BufferedImage(width, height, BufferedImage::TYPE_INT_ARGB);
+    Graphics *g = out->getGraphics();
+    g->drawImage(in, 0, 0, NULL);
+    g->dispose();
+
+    pixels = out->getData();
+
+    setNoAlpha(0, 0, 32, 16);
+    setForceAlpha(32, 0, 64, 32);
+    setNoAlpha(0, 16, 64, 32);
+    bool hasAlpha = false;
+    for (int x = 32; x < 64; x++)
+        for (int y = 0; y < 16; y++)
+		{
+            int pix = pixels[x + y * 64];
+            if (((pix >> 24) & 0xff) < 128) hasAlpha = true;
+        }
+
+	// 4J-PB - looks like the code below is wrong, and really should be looping from 0 to <32
+    if (!hasAlpha)
+	{
+        for (int x = 32; x < 64; x++)
+            for (int y = 0; y < 16; y++)
+			{
+                int pix = pixels[x + y * 64];
+                if (((pix >> 24) & 0xff) < 128) hasAlpha = true;
+            }
+    }
+
+    return out;
+}
+
+void MobSkinMemTextureProcessor::setForceAlpha(int x0, int y0, int x1, int y1)
+{
+    if (hasAlpha(x0, y0, x1, y1)) return;
+
+    for (int x = x0; x < x1; x++)
+        for (int y = y0; y < y1; y++)
+		{
+            pixels[x + y * width] &= 0x00ffffff;
+        }
+}
+
+void MobSkinMemTextureProcessor::setNoAlpha(int x0, int y0, int x1, int y1)
+{
+    for (int x = x0; x < x1; x++)
+        for (int y = y0; y < y1; y++)
+		{
+            pixels[x + y * width] |= 0xff000000;
+        }
+}
+
+bool MobSkinMemTextureProcessor::hasAlpha(int x0, int y0, int x1, int y1)
+{
+    for (int x = x0; x < x1; x++)
+        for (int y = y0; y < y1; y++)
+		{
+            int pix = pixels[x + y * width];
+            if (((pix >> 24) & 0xff) < 128) return true;
+        }
+    return false;
+}