mirror of
https://github.com/GTNewHorizons/Angelica.git
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108 lines
3.4 KiB
Java
108 lines
3.4 KiB
Java
package shadersmodcore.transform;
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import net.minecraft.launchwrapper.IClassTransformer;
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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.MethodVisitor;
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import org.objectweb.asm.Opcodes;
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import static org.objectweb.asm.Opcodes.*;
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/** transformer for net.minecraft.client.renderer.texture.AbstractTexture */
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public class SMCCTTextureAbstract 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 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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if (name.equals("multiTex")) {
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return null;
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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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// multiTex
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fv = cv.visitField(ACC_PUBLIC, "multiTex", "Lshadersmodcore/client/MultiTexID;", null, null);
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fv.visitEnd();
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}
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//SMCLog.info(" method %s.%s%s = %s",classname,name,desc,remappedName);
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if (Names.abstractTexture_deleteGlTexture.equalsNameDesc(name, desc)) {
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//SMCLog.finer(" patching method %s.%s%s = %s%s",classname,name,desc,nameM,descM);
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return new MVdeleteGlTexture(
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cv.visitMethod(access, name, desc, signature, exceptions));
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} else if (name.equals("getMultiTexID") && desc.equals("()Lshadersmodcore/client/MultiTexID;")) {
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return null;
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}
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return cv.visitMethod(access, name, desc, signature, exceptions);
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}
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@Override
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public void visitEnd() {
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MethodVisitor mv;
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// getMultiTexID
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mv = cv.visitMethod(ACC_PUBLIC, "getMultiTexID", "()Lshadersmodcore/client/MultiTexID;", null, null);
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mv.visitCode();
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mv.visitVarInsn(ALOAD, 0);
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mv.visitMethodInsn(INVOKESTATIC, "shadersmodcore/client/ShadersTex", "getMultiTexID", "("+Names.abstractTexture_.desc+")Lshadersmodcore/client/MultiTexID;");
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mv.visitInsn(ARETURN);
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mv.visitMaxs(1, 1);
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mv.visitEnd();
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// end
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cv.visitEnd();
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}
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}
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private static class MVdeleteGlTexture extends MethodVisitor
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{
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public MVdeleteGlTexture(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 visitCode() {
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mv.visitCode();
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mv.visitVarInsn(ALOAD, 0);
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mv.visitMethodInsn(INVOKESTATIC, "shadersmodcore/client/ShadersTex", "deleteTextures", "("+Names.abstractTexture_.desc+")V");
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}
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}
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}
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