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Move GLStateTrackerTransformer into 1.7.10 project

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This commit is contained in:
Jonas Herzig
2021-02-22 23:36:10 +01:00
parent 1329f2d703
commit 9e152f2655
2 changed files with 105 additions and 106 deletions
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107
src/main/java/com/replaymod/core/asm/GLStateTrackerTransformer.java
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@@ -1,106 +1 @@
//#if MC<=10710 // 1.7.10 and below
//$$ package com.replaymod.core.asm;
//$$
//$$ import net.minecraft.launchwrapper.IClassTransformer;
//$$ import org.objectweb.asm.ClassReader;
//$$ import org.objectweb.asm.ClassVisitor;
//$$ import org.objectweb.asm.ClassWriter;
//$$ import org.objectweb.asm.MethodVisitor;
//$$ import org.objectweb.asm.Opcodes;
//$$
//$$ import java.util.HashSet;
//$$ import java.util.Set;
//$$
//$$ /**
//$$ * Redirect all calls to GL11.glEnable and GL11.glDisable to the GLStateTracker (excluding that class itself).
//$$ */
//$$ public class GLStateTrackerTransformer implements IClassTransformer {
//$$ private static final String GL11_CLASS = "org.lwjgl.opengl.GL11";
//$$ private static final String GL11 = GL11_CLASS.replace('.', '/');
//$$ private static final String glEnable = "glEnable";
//$$ private static final String glDisable = "glDisable";
//$$ private static final String GLStateTracker_CLASS = "com.replaymod.render.hooks.GLStateTracker";
//$$ private static final String GLStateTracker = GLStateTracker_CLASS.replace('.', '/');
//$$ private static final String hook_glEnable = "hook_glEnable";
//$$ private static final String hook_glDisable = "hook_glDisable";
//$$
//$$ @Override
//$$ public byte[] transform(String name, String transformedName, byte[] basicClass) {
//$$ if (basicClass == null) return null;
//$$ // Ignore the state tracker itself
//$$ if (name.equals(GLStateTracker_CLASS)) return basicClass;
//$$
//$$ ClassReader reader = new ClassReader(basicClass);
//$$ Set<Method> eligibleMethods = findEligibleMethods(reader);
//$$ if (eligibleMethods.isEmpty()) {
//$$ return basicClass;
//$$ }
//$$
//$$ ClassWriter writer = new ClassWriter(reader, 0);
//$$ reader.accept(new ClassVisitor(Opcodes.ASM5, writer) {
//$$ @Override
//$$ public MethodVisitor visitMethod(int access, String name, String desc, String signature, String[] exceptions) {
//$$ MethodVisitor mv = super.visitMethod(access, name, desc, signature, exceptions);
//$$ if (!eligibleMethods.contains(new Method(name, desc))) {
//$$ return mv;
//$$ }
//$$ return new MethodVisitor(Opcodes.ASM5, mv) {
//$$ @Override
//$$ public void visitMethodInsn(int opcode, String owner, String name, String desc, boolean itf) {
//$$ if (owner.equals(GL11)) {
//$$ if (name.equals(glEnable)) {
//$$ owner = GLStateTracker;
//$$ name = hook_glEnable;
//$$ } else if (name.equals(glDisable)) {
//$$ owner = GLStateTracker;
//$$ name = hook_glDisable;
//$$ }
//$$ }
//$$ super.visitMethodInsn(opcode, owner, name, desc, itf);
//$$ }
//$$ };
//$$ }
//$$ }, 0);
//$$ return writer.toByteArray();
//$$ }
//$$
//$$ private Set<Method> findEligibleMethods(ClassReader reader) {
//$$ Set<Method> eligibleMethods = new HashSet<>();
//$$ reader.accept(new ClassVisitor(Opcodes.ASM5) {
//$$ @Override
//$$ public MethodVisitor visitMethod(int access, String methodName, String methodDesc, String signature, String[] exceptions) {
//$$ return new MethodVisitor(Opcodes.ASM5) {
//$$ @Override
//$$ public void visitMethodInsn(int opcode, String owner, String name, String desc, boolean itf) {
//$$ if (owner.equals(GL11) && (name.equals(glEnable) || name.equals(glDisable))) {
//$$ eligibleMethods.add(new Method(methodName, methodDesc));
//$$ }
//$$ }
//$$ };
//$$ }
//$$ }, ClassReader.SKIP_DEBUG | ClassReader.SKIP_FRAMES);
//$$ return eligibleMethods;
//$$ }
//$$
//$$ private static class Method {
//$$ private final String name, desc;
//$$
//$$ private Method(String name, String desc) {
//$$ this.name = name;
//$$ this.desc = desc;
//$$ }
//$$
//$$ @Override
//$$ public boolean equals(Object o) {
//$$ if (o == null || getClass() != o.getClass()) return false;
//$$ Method method = (Method) o;
//$$ return name.equals(method.name) && desc.equals(method.desc);
//$$ }
//$$
//$$ @Override
//$$ public int hashCode() {
//$$ return name.hashCode() ^ desc.hashCode();
//$$ }
//$$ }
//$$ }
//#endif

104
versions/1.7.10/src/main/java/com/replaymod/core/asm/GLStateTrackerTransformer.java Normal file
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@@ -0,0 +1,104 @@
package com.replaymod.core.asm;
import net.minecraft.launchwrapper.IClassTransformer;
import org.objectweb.asm.ClassReader;
import org.objectweb.asm.ClassVisitor;
import org.objectweb.asm.ClassWriter;
import org.objectweb.asm.MethodVisitor;
import org.objectweb.asm.Opcodes;
import java.util.HashSet;
import java.util.Set;
/**
* Redirect all calls to GL11.glEnable and GL11.glDisable to the GLStateTracker (excluding that class itself).
*/
public class GLStateTrackerTransformer implements IClassTransformer {
private static final String GL11_CLASS = "org.lwjgl.opengl.GL11";
private static final String GL11 = GL11_CLASS.replace('.', '/');
private static final String glEnable = "glEnable";
private static final String glDisable = "glDisable";
private static final String GLStateTracker_CLASS = "com.replaymod.render.hooks.GLStateTracker";
private static final String GLStateTracker = GLStateTracker_CLASS.replace('.', '/');
private static final String hook_glEnable = "hook_glEnable";
private static final String hook_glDisable = "hook_glDisable";
@Override
public byte[] transform(String name, String transformedName, byte[] basicClass) {
if (basicClass == null) return null;
// Ignore the state tracker itself
if (name.equals(GLStateTracker_CLASS)) return basicClass;
ClassReader reader = new ClassReader(basicClass);
Set<Method> eligibleMethods = findEligibleMethods(reader);
if (eligibleMethods.isEmpty()) {
return basicClass;
}
ClassWriter writer = new ClassWriter(reader, 0);
reader.accept(new ClassVisitor(Opcodes.ASM5, writer) {
@Override
public MethodVisitor visitMethod(int access, String name, String desc, String signature, String[] exceptions) {
MethodVisitor mv = super.visitMethod(access, name, desc, signature, exceptions);
if (!eligibleMethods.contains(new Method(name, desc))) {
return mv;
}
return new MethodVisitor(Opcodes.ASM5, mv) {
@Override
public void visitMethodInsn(int opcode, String owner, String name, String desc, boolean itf) {
if (owner.equals(GL11)) {
if (name.equals(glEnable)) {
owner = GLStateTracker;
name = hook_glEnable;
} else if (name.equals(glDisable)) {
owner = GLStateTracker;
name = hook_glDisable;
}
}
super.visitMethodInsn(opcode, owner, name, desc, itf);
}
};
}
}, 0);
return writer.toByteArray();
}
private Set<Method> findEligibleMethods(ClassReader reader) {
Set<Method> eligibleMethods = new HashSet<>();
reader.accept(new ClassVisitor(Opcodes.ASM5) {
@Override
public MethodVisitor visitMethod(int access, String methodName, String methodDesc, String signature, String[] exceptions) {
return new MethodVisitor(Opcodes.ASM5) {
@Override
public void visitMethodInsn(int opcode, String owner, String name, String desc, boolean itf) {
if (owner.equals(GL11) && (name.equals(glEnable) || name.equals(glDisable))) {
eligibleMethods.add(new Method(methodName, methodDesc));
}
}
};
}
}, ClassReader.SKIP_DEBUG | ClassReader.SKIP_FRAMES);
return eligibleMethods;
}
private static class Method {
private final String name, desc;
private Method(String name, String desc) {
this.name = name;
this.desc = desc;
}
@Override
public boolean equals(Object o) {
if (o == null || getClass() != o.getClass()) return false;
Method method = (Method) o;
return name.equals(method.name) && desc.equals(method.desc);
}
@Override
public int hashCode() {
return name.hashCode() ^ desc.hashCode();
}
}
}