Only Rescale when needed

Turnip-Labs · Nov 6, 2023 · 1169deb · 1169deb
1 parent acbea95
commit 1169deb
Showing 1 changed file with 18 additions and 15 deletions.
diff --git a/src/main/java/turniplabs/halplibe/mixin/mixins/RenderEngineMixin.java b/src/main/java/turniplabs/halplibe/mixin/mixins/RenderEngineMixin.java
@@ -54,20 +54,23 @@ private void initDynamicTextures(CallbackInfo ci) {
     }
     @Inject(method = "setupTexture(Ljava/awt/image/BufferedImage;IZ)V", at = @At("HEAD"), cancellable = true)
     private void adjustAtlasSize(BufferedImage img, int id, boolean mipmap, CallbackInfo ci){
-        boolean doResize = false;
-        for (String key : textureMap.keySet()) {
-            if (key.equals("/terrain.png") || key.equals("/gui/items.png")) {
-                doResize = textureMap.get(key) == id;
-                if (doResize) {
-                    break;
-                }
-            }
-        }
+//        boolean doResize = false;
+//        for (String key : textureMap.keySet()) {
+//            if (key.equals("/terrain.png") || key.equals("/gui/items.png")) {
+//                doResize = textureMap.get(key) == id;
+//                if (doResize) {
+//                    break;
+//                }
+//            }
+//        }
         if (mipmap){
-            BufferedImage testImage = new BufferedImage((img.getWidth()/32) * Global.TEXTURE_ATLAS_WIDTH_TILES, (img.getHeight()/32) * Global.TEXTURE_ATLAS_WIDTH_TILES, img.getType());
+            BufferedImage resizedAtlas = new BufferedImage((img.getWidth()/32) * Global.TEXTURE_ATLAS_WIDTH_TILES, (img.getHeight()/32) * Global.TEXTURE_ATLAS_WIDTH_TILES, img.getType());
+            if (img.getWidth() == resizedAtlas.getWidth() && img.getHeight() == resizedAtlas.getHeight()){
+                return; // Don't scale and transfer image if they're the same size
+            }
             for (int x = 0; x < img.getWidth(); x++) {
                 for (int y = 0; y < img.getHeight(); y++) {
-                    testImage.setRGB(x, y, img.getRGB(x, y));
+                    resizedAtlas.setRGB(x, y, img.getRGB(x, y));
                 }
             }
 
@@ -86,12 +89,12 @@ private void adjustAtlasSize(BufferedImage img, int id, boolean mipmap, Callback
                 GL11.glTexParameteri(3553, 10242, 10497);
                 GL11.glTexParameteri(3553, 10243, 10497);
             }
-            int w = testImage.getWidth();
-            int h = testImage.getHeight();
-            Buffer.put(testImage);
+            int w = resizedAtlas.getWidth();
+            int h = resizedAtlas.getHeight();
+            Buffer.put(resizedAtlas);
             GL11.glTexImage2D(3553, 0, 6408, w, h, 0, 6408, 5121, Buffer.buffer);
             if (mipmap) {
-                this.generateMipmaps(Buffer.buffer, testImage, this.minecraft.gameSettings.mipmapLevels.value, this.minecraft.gameSettings.mipmapType.value == MipmapType.SMOOTH);
+                this.generateMipmaps(Buffer.buffer, resizedAtlas, this.minecraft.gameSettings.mipmapLevels.value, this.minecraft.gameSettings.mipmapType.value == MipmapType.SMOOTH);
             }
             ci.cancel();
         }