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Initial commit from the source zip for version 2.3.18

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Raven Szewczyk committed 2022-08-22 16:27:02 +01:00
commit dccbbdd63d
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java/shadersmodcore/transform/SMCCTModelRenderer.java
+134
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package shadersmodcore.transform;
import java.util.Iterator;
import java.util.ListIterator;
import org.lwjgl.opengl.GL12;
import org.objectweb.asm.ClassReader;
import org.objectweb.asm.ClassVisitor;
import org.objectweb.asm.ClassWriter;
import org.objectweb.asm.FieldVisitor;
import org.objectweb.asm.Label;
import org.objectweb.asm.MethodVisitor;
import org.objectweb.asm.Opcodes;
import static org.objectweb.asm.Opcodes.*;
import org.objectweb.asm.commons.Remapper;
import org.objectweb.asm.tree.AbstractInsnNode;
import org.objectweb.asm.tree.MethodNode;
import net.minecraft.launchwrapper.IClassTransformer;
public class SMCCTModelRenderer implements IClassTransformer {
@Override
public byte[] transform(String par1, String par2, byte[] par3) {
SMCLog.fine("transforming %s %s",par1,par2);
ClassReader cr = new ClassReader(par3);
ClassWriter cw = new ClassWriter(cr, ClassWriter.COMPUTE_MAXS);
CVTransform cv = new CVTransform(cw);
cr.accept(cv,0);
return cw.toByteArray();
}
private static class CVTransform extends ClassVisitor
{
String classname;
public CVTransform(ClassVisitor cv)
{
super(Opcodes.ASM4, cv);
}
@Override
public void visit(int version, int access, String name,
String signature, String superName, String[] interfaces) {
classname = name;
//SMCLog.info(" class %s",name);
cv.visit(version, access, name, signature, superName, interfaces);
}
// @Override
// public FieldVisitor visitField(int access, String name, String desc,
// String signature, Object value) {
// if (Names.modelRenderer_compiled.name.equals(name) ||
// Names.modelRenderer_displayList.name.equals(name)) {
// access = access & ~(ACC_PUBLIC|ACC_PRIVATE|ACC_PROTECTED) | ACC_PUBLIC;
// }
// return cv.visitField(access, name, desc, signature, value);
// }
@Override
public MethodVisitor visitMethod(int access, String name, String desc,
String signature, String[] exceptions)
{
//SMCLog.info(" method %s.%s%s = %s",classname,name,desc,remappedName);
// if (Names.modelRenderer_render.equalsNameDesc(name, desc))
// {
// //SMCLog.finer(" patching method %s.%s%s = %s",classname,name,desc,remappedName);
// return new MVrender(
// cv.visitMethod(access, name, desc, signature, exceptions));
// }
// else
// if (Names.modelRenderer_renderWithRotation.equalsNameDesc(name, desc))
// {
// //SMCLog.finer(" patching method %s.%s%s = %s",classname,name,desc,remappedName);
// return new MVrender(
// cv.visitMethod(access, name, desc, signature, exceptions));
// }
// else
if ("resetDisplayList".equals(name) && "()V".equals(desc)
|| "getCompiled".equals(name) && "()Z".equals(desc)
|| "getDisplayList".equals(name) && "()I".equals(desc)
) {
return null;
}
return cv.visitMethod(access, name, desc, signature, exceptions);
}
@Override
public void visitEnd() {
MethodVisitor mv;
{
mv = cv.visitMethod(ACC_PUBLIC, "getCompiled", "()Z", null, null);
mv.visitCode();
mv.visitVarInsn(ALOAD, 0);
mv.visitFieldInsn(GETFIELD, Names.modelRenderer_compiled.clas, Names.modelRenderer_compiled.name, Names.modelRenderer_compiled.desc);
mv.visitInsn(IRETURN);
mv.visitMaxs(1, 1);
mv.visitEnd();
}
{
mv = cv.visitMethod(ACC_PUBLIC, "getDisplayList", "()I", null, null);
mv.visitCode();
mv.visitVarInsn(ALOAD, 0);
mv.visitFieldInsn(GETFIELD, Names.modelRenderer_displayList.clas, Names.modelRenderer_displayList.name, Names.modelRenderer_displayList.desc);
mv.visitInsn(IRETURN);
mv.visitMaxs(1, 1);
mv.visitEnd();
}
{
mv = cv.visitMethod(ACC_PUBLIC, "resetDisplayList", "()V", null, null);
mv.visitCode();
mv.visitVarInsn(ALOAD, 0);
mv.visitFieldInsn(GETFIELD, Names.modelRenderer_compiled.clas, Names.modelRenderer_compiled.name, Names.modelRenderer_compiled.desc);
Label l1 = new Label();
mv.visitJumpInsn(IFEQ, l1);
mv.visitVarInsn(ALOAD, 0);
mv.visitFieldInsn(GETFIELD, Names.modelRenderer_displayList.clas, Names.modelRenderer_displayList.name, Names.modelRenderer_displayList.desc);
mv.visitMethodInsn(INVOKESTATIC, Names.glAllocation_deleteDisplayLists.clas, Names.glAllocation_deleteDisplayLists.name, Names.glAllocation_deleteDisplayLists.desc);
mv.visitVarInsn(ALOAD, 0);
mv.visitInsn(ICONST_0);
mv.visitFieldInsn(PUTFIELD, Names.modelRenderer_displayList.clas, Names.modelRenderer_displayList.name, Names.modelRenderer_displayList.desc);
mv.visitVarInsn(ALOAD, 0);
mv.visitInsn(ICONST_0);
mv.visitFieldInsn(PUTFIELD, Names.modelRenderer_compiled.clas, Names.modelRenderer_compiled.name, Names.modelRenderer_compiled.desc);
mv.visitLabel(l1);
mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
mv.visitInsn(RETURN);
mv.visitMaxs(2, 1);
mv.visitEnd();
}
super.visitEnd();
}
}
}