mirror of
https://github.com/GTNewHorizons/Angelica.git
synced 2026-11-08 12:35:01 +00:00
465 lines
17 KiB
Java
465 lines
17 KiB
Java
package shadersmodcore.transform;
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import java.util.Iterator;
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import org.objectweb.asm.ClassReader;
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import org.objectweb.asm.ClassVisitor;
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import org.objectweb.asm.ClassWriter;
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import org.objectweb.asm.FieldVisitor;
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import org.objectweb.asm.Label;
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import org.objectweb.asm.MethodVisitor;
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import org.objectweb.asm.Opcodes;
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import static org.objectweb.asm.Opcodes.*;
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import org.objectweb.asm.commons.Remapper;
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import org.objectweb.asm.tree.MethodNode;
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import net.minecraft.launchwrapper.IClassTransformer;
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/** transformer for net.minecraft.client.renderer.Tessellator */
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public class SMCCTTessellator implements IClassTransformer {
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@Override
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public byte[] transform(String par1, String par2, byte[] par3) {
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SMCLog.fine("transforming %s %s",par1,par2);
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ClassReader cr = new ClassReader(par3);
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ClassWriter cw = new ClassWriter(cr, ClassWriter.COMPUTE_MAXS);
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CVTransform cv = new CVTransform(cw);
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cr.accept(cv,0);
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return cw.toByteArray();
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}
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private static boolean inputHasStaticBuffer = false;
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private static class CVTransform extends ClassVisitor
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{
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String classname;
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boolean endFields = false;
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public CVTransform(ClassVisitor cv)
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{
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super(Opcodes.ASM4, cv);
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}
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@Override
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public void visit(int version, int access, String name,
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String signature, String superName, String[] interfaces) {
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classname = name;
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//SMCLog.info(" class %s",name);
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cv.visit(version, access, name, signature, superName, interfaces);
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}
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@Override
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public FieldVisitor visitField(int access, String name, String desc,
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String signature, Object value) {
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//SMCLog.fine("%x %s %s %s",access,desc,name,nameM);
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if ( name.equals("vertexPos") ||
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name.equals("normalX") ||
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name.equals("normalY") ||
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name.equals("normalZ") ||
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name.equals("midTextureU") ||
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name.equals("midTextureV")
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) {
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return null;
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} else if (((access & ACC_STATIC) != 0) && (
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Names.tessellator_byteBuffer.name.equals(name) ||
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Names.tessellator_intBuffer.name.equals(name) ||
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Names.tessellator_floatBuffer.name.equals(name) ||
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Names.tessellator_shortBuffer.name.equals(name) ||
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Names.tessellator_vertexCount.name.equals(name)
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//nameM.equals(Names.Tessellator_useVBO) ||
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//nameM.equals(Names.Tessellator_vertexBuffers)
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)) {
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inputHasStaticBuffer = true;
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//SMCLog.finest(" input has static buffer");
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access = access & (~ACC_STATIC & ~ACC_PRIVATE & ~ACC_PROTECTED) | ACC_PUBLIC;
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} else {
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access = access & (~ACC_PRIVATE & ~ACC_PROTECTED) | ACC_PUBLIC;
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}
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return cv.visitField(access, name, desc, signature, value);
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}
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@Override
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public MethodVisitor visitMethod(int access, String name, String desc,
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String signature, String[] exceptions)
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{
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if (!endFields) {
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endFields = true;
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FieldVisitor fv;
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fv = cv.visitField(ACC_PUBLIC, "vertexPos", "[F", null, null);
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fv.visitEnd();
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fv = cv.visitField(ACC_PUBLIC, "normalX", "F", null, null);
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fv.visitEnd();
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fv = cv.visitField(ACC_PUBLIC, "normalY", "F", null, null);
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fv.visitEnd();
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fv = cv.visitField(ACC_PUBLIC, "normalZ", "F", null, null);
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fv.visitEnd();
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fv = cv.visitField(ACC_PUBLIC, "midTextureU", "F", null, null);
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fv.visitEnd();
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fv = cv.visitField(ACC_PUBLIC, "midTextureV", "F", null, null);
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fv.visitEnd();
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}
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//SMCLog.fine(" method %s.%s%s = %s",classname,name,desc,nameM);
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if (name.equals("<clinit>"))
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{
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//SMCLog.finer(" patching method %s.%s%s = %s",classname,name,desc,nameM);
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return new MVclinit(cv.visitMethod(access, name, desc, signature, exceptions));
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} else
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if (name.equals("<init>") && desc.equals("()V"))
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{
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//SMCLog.finer(" patching method %s.%s%s = %s",classname,name,desc,nameM);
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return new MVinit(cv.visitMethod(access, name, desc, signature, exceptions));
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} else
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if (name.equals("<init>") && desc.equals("(I)V"))
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{
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//SMCLog.finer(" patching method %s.%s%s = %s",classname,name,desc,nameM);
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return new MVinitI(
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cv.visitMethod(access, name, desc, signature, exceptions)
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);
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} else
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if (Names.tessellator_draw.equalsNameDesc(name, desc))
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{
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//SMCLog.finer(" patching method %s.%s%s = %s",classname,name,desc,nameM);
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return new MVdraw(cv.visitMethod(access, name, desc, signature, exceptions));
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} else
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if (Names.tessellator_reset.equalsNameDesc(name, desc))
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{
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//SMCLog.finer(" patching method %s.%s%s = %s",classname,name,desc,nameM);
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access = access & ~(ACC_PRIVATE|ACC_PROTECTED) | ACC_PUBLIC;
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return new MVreset(cv.visitMethod(access, name, desc, signature, exceptions));
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} else
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if (Names.tessellator_addVertex.equalsNameDesc(name, desc))
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{
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//SMCLog.finer(" patching method %s.%s%s = %s",classname,name,desc,nameM);
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return new MVaddVertex(cv.visitMethod(access, name, desc, signature, exceptions));
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} else
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if (Names.tessellator_setNormal.equalsNameDesc(name, desc))
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{
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//SMCLog.finer(" patching method %s.%s%s = %s",classname,name,desc,nameM);
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return new MVsetNormal(
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cv.visitMethod(access, name, desc, signature, exceptions));
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} else
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if (Names.tessellator_sortQuad.equalsNameDesc(name, desc))
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{
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//SMCLog.finer(" patching method %s.%s%s = %s",classname,name,desc,nameM);
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return new MVsortQuad(
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cv.visitMethod(access, name, desc, signature, exceptions));
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} else
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{
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access = access & ~(ACC_PRIVATE|ACC_PROTECTED) | ACC_PUBLIC;
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}
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return cv.visitMethod(access, name, desc, signature, exceptions);
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}
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}
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/*private static class MVclinit extends MethodVisitor
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{
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public MVclinit(MethodVisitor mv) {
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super(Opcodes.ASM4, mv);
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}
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}
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private static class MVinit extends MethodVisitor
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{
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public MVinit(MethodVisitor mv) {
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super(Opcodes.ASM4, mv);
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}
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@Override
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public void visitInsn(int opcode) {
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if (opcode == RETURN) {
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mv.visitVarInsn(ALOAD, 0);
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mv.visitIntInsn(BIPUSH, 16);
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mv.visitIntInsn(NEWARRAY, T_FLOAT);
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mv.visitFieldInsn(PUTFIELD, SMCNames.Tessellator_, "vertexPos", "[F");
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}
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mv.visitInsn(opcode);
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}
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}*/
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private static class MVclinit extends MethodVisitor
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{
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public MVclinit(MethodVisitor mv) {
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super(Opcodes.ASM4, mv);
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}
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@Override
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public void visitFieldInsn(int opcode, String owner, String name,
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String desc) {
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//SMCLog.finest(" F %d %s.%s %s", opcode, ownerM, nameM, descM);
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if (opcode==PUTSTATIC && (
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Names.tessellator_byteBuffer.equals(owner, name) ||
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Names.tessellator_intBuffer.equals(owner, name) ||
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Names.tessellator_floatBuffer.equals(owner, name) ||
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Names.tessellator_shortBuffer.equals(owner, name) ||
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Names.tessellator_vertexCount.equals(owner, name)
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//nameM.equals(Names.Tessellator_useVBO)||
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//nameM.equals(Names.Tessellator_vertexBuffers)
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))
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{
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mv.visitInsn(POP);
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return;
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} else
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if (opcode==GETSTATIC && (
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Names.tessellator_byteBuffer.equals(owner, name)
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//nameM.equals(Names.Tessellator_vertexBuffers)
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))
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{
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mv.visitInsn(ACONST_NULL);
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return;
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//} else
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//if (opcode==GETSTATIC && (
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// nameM.equals(Names.Tessellator_useVBO)
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// ))
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//{
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// mv.visitInsn(ICONST_0);
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// return;
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}
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mv.visitFieldInsn(opcode, owner, name, desc);
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}
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@Override
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public void visitMethodInsn(int opcode, String owner, String name,
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String desc) {
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//SMCLog.finest(" M %d %s.%s %s", opcode, ownerM, nameM, descM);
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if (Names.glAllocation_createDirectByteBuffer.equals(owner, name, desc)) {
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mv.visitInsn(POP);
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mv.visitInsn(ACONST_NULL);
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return;
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} else if (Names.glAllocation_createDirectIntBuffer.equals(owner, name, desc)) {
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mv.visitInsn(POP);
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mv.visitInsn(ACONST_NULL);
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return;
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} else if (Names.equals("java/nio/ByteBuffer","asIntBuffer","()Ljava/nio/IntBuffer;",owner,name,desc) ) {
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mv.visitInsn(POP);
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mv.visitInsn(ACONST_NULL);
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return;
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} else if (Names.equals("java/nio/ByteBuffer","asFloatBuffer","()Ljava/nio/FloatBuffer;",owner,name,desc) ) {
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mv.visitInsn(POP);
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mv.visitInsn(ACONST_NULL);
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return;
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} else if (Names.equals("java/nio/ByteBuffer","asShortBuffer","()Ljava/nio/ShortBuffer;",owner,name,desc) ) {
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mv.visitInsn(POP);
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mv.visitInsn(ACONST_NULL);
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return;
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}
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mv.visitMethodInsn(opcode, owner, name, desc);
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}
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}
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private static class MVinit extends MethodVisitor
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{
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public MVinit(MethodVisitor mv) {
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super(Opcodes.ASM4, mv);
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}
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@Override
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public void visitMethodInsn(int opcode, String owner, String name, String desc) {
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if (opcode==INVOKESPECIAL
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&& Names.equals("java/lang/Object","<init>","()V",owner, name, desc) )
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{
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mv.visitLdcInsn(new Integer(65536));
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mv.visitMethodInsn(INVOKESPECIAL, Names.tessellator_.clas, "<init>", "(I)V");
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return;
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}
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mv.visitMethodInsn(opcode, owner, name, desc);
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}
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}
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private static class MVinitI extends MethodVisitor
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{
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public MVinitI(MethodVisitor mv) {
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super(Opcodes.ASM4, mv);
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}
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@Override
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public void visitInsn(int opcode) {
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if (opcode == RETURN) {
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if (inputHasStaticBuffer) {
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mv.visitVarInsn(ALOAD, 0);
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mv.visitVarInsn(ILOAD, 1);
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mv.visitInsn(ICONST_4);
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mv.visitInsn(IMUL);
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mv.visitMethodInsn(INVOKESTATIC, Names.glAllocation_createDirectByteBuffer.clas, Names.glAllocation_createDirectByteBuffer.name, Names.glAllocation_createDirectByteBuffer.desc);
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mv.visitFieldInsn(PUTFIELD, Names.tessellator_byteBuffer.clas, Names.tessellator_byteBuffer.name, Names.tessellator_byteBuffer.desc);
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mv.visitVarInsn(ALOAD, 0);
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mv.visitVarInsn(ALOAD, 0);
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mv.visitFieldInsn(GETFIELD, Names.tessellator_byteBuffer.clas, Names.tessellator_byteBuffer.name, Names.tessellator_byteBuffer.desc);
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mv.visitMethodInsn(INVOKEVIRTUAL, "java/nio/ByteBuffer", "asIntBuffer", "()Ljava/nio/IntBuffer;");
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mv.visitFieldInsn(PUTFIELD, Names.tessellator_intBuffer.clas, Names.tessellator_intBuffer.name, Names.tessellator_intBuffer.desc);
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mv.visitVarInsn(ALOAD, 0);
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mv.visitVarInsn(ALOAD, 0);
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mv.visitFieldInsn(GETFIELD, Names.tessellator_byteBuffer.clas, Names.tessellator_byteBuffer.name, Names.tessellator_byteBuffer.desc);
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mv.visitMethodInsn(INVOKEVIRTUAL, "java/nio/ByteBuffer", "asFloatBuffer", "()Ljava/nio/FloatBuffer;");
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mv.visitFieldInsn(PUTFIELD, Names.tessellator_floatBuffer.clas, Names.tessellator_floatBuffer.name, Names.tessellator_floatBuffer.desc);
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mv.visitVarInsn(ALOAD, 0);
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mv.visitVarInsn(ALOAD, 0);
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mv.visitFieldInsn(GETFIELD, Names.tessellator_byteBuffer.clas, Names.tessellator_byteBuffer.name, Names.tessellator_byteBuffer.desc);
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mv.visitMethodInsn(INVOKEVIRTUAL, "java/nio/ByteBuffer", "asShortBuffer", "()Ljava/nio/ShortBuffer;");
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mv.visitFieldInsn(PUTFIELD, Names.tessellator_shortBuffer.clas, Names.tessellator_shortBuffer.name, Names.tessellator_shortBuffer.desc);
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mv.visitVarInsn(ALOAD, 0);
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mv.visitVarInsn(ILOAD, 1);
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mv.visitIntInsn(NEWARRAY, T_INT);
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mv.visitFieldInsn(PUTFIELD, Names.tessellator_rawBuffer.clas, Names.tessellator_rawBuffer.name, Names.tessellator_rawBuffer.desc);
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mv.visitVarInsn(ALOAD, 0);
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mv.visitInsn(ICONST_0);
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mv.visitFieldInsn(PUTFIELD, Names.tessellator_vertexCount.clas, Names.tessellator_vertexCount.name, Names.tessellator_vertexCount.desc);
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//mv.visitVarInsn(ALOAD, 0);
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//mv.visitFieldInsn(GETSTATIC, Names.Tessellator_, Names.Tessellator_tryVBO, "Z");
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//Label l28 = new Label();
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//mv.visitJumpInsn(IFEQ, l28);
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//mv.visitMethodInsn(INVOKESTATIC, "org/lwjgl/opengl/GLContext", "getCapabilities", "()Lorg/lwjgl/opengl/ContextCapabilities;");
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//mv.visitFieldInsn(GETFIELD, "org/lwjgl/opengl/ContextCapabilities", "GL_ARB_vertex_buffer_object", "Z");
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//mv.visitJumpInsn(IFEQ, l28);
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//mv.visitInsn(ICONST_1);
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//Label l29 = new Label();
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//mv.visitJumpInsn(GOTO, l29);
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//mv.visitLabel(l28);
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//mv.visitFrame(Opcodes.F_FULL, 2, new Object[] {Names.Tessellator_, Opcodes.INTEGER}, 1, new Object[] {Names.Tessellator_});
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//mv.visitInsn(ICONST_0);
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//mv.visitLabel(l29);
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//mv.visitFrame(Opcodes.F_FULL, 2, new Object[] {Names.Tessellator_, Opcodes.INTEGER}, 2, new Object[] {Names.Tessellator_, Opcodes.INTEGER});
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//mv.visitFieldInsn(PUTFIELD, Names.Tessellator_, Names.Tessellator_useVBO, "Z");
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//mv.visitVarInsn(ALOAD, 0);
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//mv.visitFieldInsn(GETFIELD, Names.Tessellator_, Names.Tessellator_useVBO, "Z");
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//Label l31 = new Label();
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//mv.visitJumpInsn(IFEQ, l31);
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//mv.visitVarInsn(ALOAD, 0);
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//mv.visitVarInsn(ALOAD, 0);
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//mv.visitFieldInsn(GETFIELD, Names.Tessellator_, Names.Tessellator_vboCount, "I");
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//mv.visitMethodInsn(INVOKESTATIC, Names.GLAllocation_, Names.GLAllocation_createDirectIntBuffer, Names.GLAllocation_createDirectIntBuffer_desc);
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//mv.visitFieldInsn(PUTFIELD, Names.Tessellator_, Names.Tessellator_vertexBuffers, "Ljava/nio/IntBuffer;");
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//mv.visitVarInsn(ALOAD, 0);
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//mv.visitFieldInsn(GETFIELD, Names.Tessellator_, Names.Tessellator_vertexBuffers, "Ljava/nio/IntBuffer;");
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//mv.visitMethodInsn(INVOKESTATIC, "org/lwjgl/opengl/ARBVertexBufferObject", "glGenBuffersARB", "(Ljava/nio/IntBuffer;)V");
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//mv.visitLabel(l31);
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//mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
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}
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mv.visitVarInsn(ALOAD, 0);
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mv.visitIntInsn(BIPUSH, 16);
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mv.visitIntInsn(NEWARRAY, T_FLOAT);
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mv.visitFieldInsn(PUTFIELD, Names.tessellator_.clas, "vertexPos", "[F");
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}
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mv.visitInsn(opcode);
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}
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}
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private static class MVdraw extends MethodVisitor
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{
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public MVdraw(MethodVisitor mv) {
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super(Opcodes.ASM4, null);
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mv.visitCode();
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Label l0 = new Label();
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mv.visitLabel(l0);
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mv.visitLineNumber(185, l0);
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mv.visitVarInsn(ALOAD, 0);
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mv.visitMethodInsn(INVOKESTATIC, "shadersmodcore/client/ShadersTess", "draw", "("+Names.tessellator_.desc+")I");
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mv.visitInsn(IRETURN);
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Label l1 = new Label();
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mv.visitLabel(l1);
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mv.visitLocalVariable("this", Names.tessellator_.desc, null, l0, l1, 0);
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mv.visitMaxs(1, 1);
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mv.visitEnd();
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}
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}
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private static class MVreset extends MethodVisitor
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{
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public MVreset(MethodVisitor mv) {
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super(Opcodes.ASM4, mv);
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}
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@Override
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public void visitFieldInsn(int opcode, String owner, String name,
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String desc) {
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//SMCLog.finest(" F %d %s.%s %s", opcode, ownerM, nameM, descM);
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if (opcode==GETSTATIC && Names.tessellator_byteBuffer.equals(owner, name))
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{
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mv.visitVarInsn(ALOAD, 0);
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mv.visitFieldInsn(GETFIELD, owner, name, desc);
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return;
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}
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mv.visitFieldInsn(opcode, owner, name, desc);
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}
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}
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private static class MVaddVertex extends MethodVisitor
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{
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public MVaddVertex(MethodVisitor mv) {
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super(Opcodes.ASM4, null);
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mv.visitCode();
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Label l0 = new Label();
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mv.visitLabel(l0);
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mv.visitLineNumber(466, l0);
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mv.visitVarInsn(ALOAD, 0);
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mv.visitVarInsn(DLOAD, 1);
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mv.visitVarInsn(DLOAD, 3);
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mv.visitVarInsn(DLOAD, 5);
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mv.visitMethodInsn(INVOKESTATIC, "shadersmodcore/client/ShadersTess", "addVertex", "("+Names.tessellator_.desc+"DDD)V");
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Label l1 = new Label();
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mv.visitLabel(l1);
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mv.visitLineNumber(467, l1);
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mv.visitInsn(RETURN);
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Label l2 = new Label();
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mv.visitLabel(l2);
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mv.visitLocalVariable("this", Names.tessellator_.desc, null, l0, l2, 0);
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mv.visitLocalVariable("par1", "D", null, l0, l2, 1);
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mv.visitLocalVariable("par3", "D", null, l0, l2, 3);
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|
mv.visitLocalVariable("par5", "D", null, l0, l2, 5);
|
|
mv.visitMaxs(7, 7);
|
|
mv.visitEnd();
|
|
}
|
|
}
|
|
|
|
private static class MVsetNormal extends MethodVisitor
|
|
{
|
|
public MVsetNormal(MethodVisitor mv) {
|
|
super(Opcodes.ASM4, null);
|
|
mv.visitCode();
|
|
Label l0 = new Label();
|
|
mv.visitLabel(l0);
|
|
mv.visitVarInsn(ALOAD, 0);
|
|
mv.visitInsn(ICONST_1);
|
|
mv.visitFieldInsn(PUTFIELD, Names.tessellator_hasNormals.clas, Names.tessellator_hasNormals.name, Names.tessellator_hasNormals.desc);
|
|
mv.visitVarInsn(ALOAD, 0);
|
|
mv.visitVarInsn(FLOAD, 1);
|
|
mv.visitFieldInsn(PUTFIELD, Names.tessellator_.clas, "normalX", "F");
|
|
mv.visitVarInsn(ALOAD, 0);
|
|
mv.visitVarInsn(FLOAD, 2);
|
|
mv.visitFieldInsn(PUTFIELD, Names.tessellator_.clas, "normalY", "F");
|
|
mv.visitVarInsn(ALOAD, 0);
|
|
mv.visitVarInsn(FLOAD, 3);
|
|
mv.visitFieldInsn(PUTFIELD, Names.tessellator_.clas, "normalZ", "F");
|
|
mv.visitInsn(RETURN);
|
|
Label l5 = new Label();
|
|
mv.visitLabel(l5);
|
|
mv.visitLocalVariable("this", Names.tessellator_.desc, null, l0, l5, 0);
|
|
mv.visitLocalVariable("par1", "F", null, l0, l5, 1);
|
|
mv.visitLocalVariable("par2", "F", null, l0, l5, 2);
|
|
mv.visitLocalVariable("par3", "F", null, l0, l5, 3);
|
|
mv.visitMaxs(2, 4);
|
|
mv.visitEnd();
|
|
}
|
|
}
|
|
|
|
private static class MVsortQuad extends MethodVisitor
|
|
{
|
|
public MVsortQuad(MethodVisitor mv) {
|
|
super(Opcodes.ASM4, mv);
|
|
}
|
|
|
|
@Override
|
|
public void visitIntInsn(int opcode, int operand) {
|
|
if (opcode == BIPUSH && operand == 32)
|
|
{
|
|
operand = 64;
|
|
}
|
|
super.visitIntInsn(opcode, operand);
|
|
}
|
|
|
|
}
|
|
|
|
|
|
}
|