From 737df499a7c7b9576fe4addfe22f3316b0b93f38 Mon Sep 17 00:00:00 2001
From: Jcw87 <Jcw87@users.noreply.github.com>
Date: Wed, 20 Sep 2023 20:04:59 -0700
Subject: [PATCH] JUTXfb

---
 src/JSystem/JUtility/JUTXfb.cpp | 84 ++++++++++++++++++++++++++++-----
 1 file changed, 71 insertions(+), 13 deletions(-)

diff --git a/src/JSystem/JUtility/JUTXfb.cpp b/src/JSystem/JUtility/JUTXfb.cpp
index 485ca221f..50352ff0a 100644
--- a/src/JSystem/JUtility/JUTXfb.cpp
+++ b/src/JSystem/JUtility/JUTXfb.cpp
@@ -4,44 +4,102 @@
 //
 
 #include "JSystem/JUtility/JUTXfb.h"
-#include "dolphin/types.h"
+#include "JSystem/JKernel/JKRHeap.h"
+#include "JSystem/JUtility/JUTAssert.h"
+#include "dolphin/gx/GX.h"
+
+JUTXfb* JUTXfb::sManager;
 
 /* 802C81D8-802C81EC       .text clearIndex__6JUTXfbFv */
 void JUTXfb::clearIndex() {
-    /* Nonmatching */
+    mDrawingXfbIndex = -1;
+    mDrawnXfbIndex = -1;
+    mDisplayingXfbIndex = -1;
 }
 
 /* 802C81EC-802C8224       .text common_init__6JUTXfbFi */
-void JUTXfb::common_init(int) {
-    /* Nonmatching */
+void JUTXfb::common_init(int bufNum) {
+    mBufferNum = bufNum;
+    clearIndex();
+    mSDrawingFlag = 99;
 }
 
 /* 802C8224-802C82CC       .text __ct__6JUTXfbFPC16_GXRenderModeObjP7JKRHeapQ26JUTXfb10EXfbNumber */
-JUTXfb::JUTXfb(const _GXRenderModeObj*, JKRHeap*, JUTXfb::EXfbNumber) {
+JUTXfb::JUTXfb(const _GXRenderModeObj* pObj, JKRHeap* pHeap, JUTXfb::EXfbNumber xfbNum) {
     /* Nonmatching */
+    common_init(xfbNum);
+
+    if (pObj) {
+        initiate(pObj->fb_width, pObj->xfb_height, pHeap, xfbNum);
+    } else {
+        u16 fb_width = JUTVideo::getManager()->getRenderMode()->fb_width;
+        u16 efb_height = JUTVideo::getManager()->getRenderMode()->efb_height;
+        u16 xfb_height = JUTVideo::getManager()->getRenderMode()->xfb_height;
+        f32 scale_factor = GXGetYScaleFactor(efb_height, xfb_height);
+        u16 xfb_lines = GXGetNumXfbLines(efb_height, scale_factor);
+
+        initiate(fb_width, xfb_lines, pHeap, xfbNum);
+    }
 }
 
 /* 802C82CC-802C833C       .text __dt__6JUTXfbFv */
 JUTXfb::~JUTXfb() {
-    /* Nonmatching */
+    for (int i = 0; i < 3; i++) {
+        delXfb(i);
+    }
+    sManager = NULL;
 }
 
 /* 802C833C-802C837C       .text delXfb__6JUTXfbFi */
-void JUTXfb::delXfb(int) {
-    /* Nonmatching */
+void JUTXfb::delXfb(int xfbIdx) {
+    if (mXfbAllocated[xfbIdx] && mBuffer[xfbIdx]) {
+        delete mBuffer[xfbIdx];
+    }
 }
 
 /* 802C837C-802C8410       .text createManager__6JUTXfbFPC16_GXRenderModeObjP7JKRHeapQ26JUTXfb10EXfbNumber */
-void JUTXfb::createManager(const _GXRenderModeObj*, JKRHeap*, JUTXfb::EXfbNumber) {
-    /* Nonmatching */
+JUTXfb* JUTXfb::createManager(const _GXRenderModeObj* pObj, JKRHeap* pHeap, JUTXfb::EXfbNumber xfbNum) {
+    JUT_CONFIRM(203, sManager == 0);
+    if (sManager == NULL) {
+        sManager = new JUTXfb(pObj, pHeap, xfbNum);
+    }
+    return sManager;
 }
 
 /* 802C8410-802C8468       .text destroyManager__6JUTXfbFv */
 void JUTXfb::destroyManager() {
-    /* Nonmatching */
+    JUT_CONFIRM(344, sManager);
+    delete sManager;
+    sManager = NULL;
 }
 
 /* 802C8468-802C8544       .text initiate__6JUTXfbFUsUsP7JKRHeapQ26JUTXfb10EXfbNumber */
-void JUTXfb::initiate(unsigned short, unsigned short, JKRHeap*, JUTXfb::EXfbNumber) {
-    /* Nonmatching */
+void JUTXfb::initiate(u16 width, u16 height, JKRHeap* pHeap, JUTXfb::EXfbNumber xfbNum) {
+    if (pHeap == NULL) {
+        pHeap = JKRHeap::getSystemHeap();
+    }
+
+    int size = ((u32)width + 0xf & 0xfff0) * (u32)height * 2;
+
+    void* buf = ::operator new[](size, pHeap, 0x20);
+    mBuffer[0] = buf;
+    mXfbAllocated[0] = true;
+
+    if (xfbNum >= 2) {
+        buf = ::operator new[](size, pHeap, 0x20);
+        mBuffer[1] = buf;
+        mXfbAllocated[1] = true;
+    } else {
+        mBuffer[1] = NULL;
+        mXfbAllocated[1] = false;
+    }
+
+    if (xfbNum >= 3) {
+        buf = ::operator new[](size, pHeap, 0x20);
+        mBuffer[2] = buf;
+        mXfbAllocated[2] = true;
+    } else {
+        mBuffer[2] = NULL;
+        mXfbAllocated[2] = false;
+    }
 }