From ace76fe9e4a7337f10ab61984b2b46313df2f3df Mon Sep 17 00:00:00 2001
From: Graham <gpe@openrs2.dev>
Date: Thu, 12 Mar 2020 19:59:32 +0000
Subject: [PATCH] Transform GL_FRAMEBUFFER_COMPLETE literals

This is a special case, so I've just hard-coded the GlEnum name and
value. Luckily its value is only used in the client in an OpenGL
context.

Signed-off-by: Graham <gpe@openrs2.dev>
---
 .../ast/transform/GlConstantTransformer.kt    | 28 +++++++++++++++++++
 1 file changed, 28 insertions(+)

diff --git a/deob-ast/src/main/java/dev/openrs2/deob/ast/transform/GlConstantTransformer.kt b/deob-ast/src/main/java/dev/openrs2/deob/ast/transform/GlConstantTransformer.kt
index 0dac12379e..0d97362c64 100644
--- a/deob-ast/src/main/java/dev/openrs2/deob/ast/transform/GlConstantTransformer.kt
+++ b/deob-ast/src/main/java/dev/openrs2/deob/ast/transform/GlConstantTransformer.kt
@@ -47,6 +47,33 @@ class GlConstantTransformer : Transformer() {
         } else {
             transformArguments(unit)
         }
+
+        transformFramebufferStatus(unit)
+    }
+
+    private fun transformFramebufferStatus(unit: CompilationUnit) {
+        unit.walk { expr: BinaryExpr ->
+            if (expr.operator == BinaryExpr.Operator.EQUALS || expr.operator == BinaryExpr.Operator.NOT_EQUALS) {
+                transformFramebufferStatus(unit, expr.left)
+                transformFramebufferStatus(unit, expr.right)
+            }
+        }
+    }
+
+    private fun transformFramebufferStatus(unit: CompilationUnit, expr: Expression) {
+        if (!expr.isIntegerLiteralExpr) {
+            return
+        }
+
+        val value = expr.asIntegerLiteralExpr().checkedAsInt()
+        if (value.toLong() != GL_FRAMEBUFFER_COMPLETE.value) {
+            return
+        }
+
+        unit.addImport(GL_CLASS)
+        enums += GL_FRAMEBUFFER_COMPLETE
+
+        expr.replace(GL_FRAMEBUFFER_COMPLETE.toExpr())
     }
 
     private fun transformParameterNames(type: TypeDeclaration<*>) {
@@ -287,6 +314,7 @@ class GlConstantTransformer : Transformer() {
         private const val JAGGL_CLASS = "jaggl.opengl"
         private val GL_CLASSES = setOf(GL_CLASS, JAGGL_CLASS)
         private val REGISTRY = GlRegistry.parse()
+        private val GL_FRAMEBUFFER_COMPLETE = GlEnum("GL_FRAMEBUFFER_COMPLETE", 0x8CD5)
 
         private val FIELD_METHOD_COMPARATOR = Comparator<BodyDeclaration<*>> { a, b ->
             when {