From 4ae5fe5753537264872e09562acb2e853dd41850 Mon Sep 17 00:00:00 2001
From: Elijah Thomas <elijahthomas774@gmail.com>
Date: Fri, 6 Oct 2023 07:49:50 -0400
Subject: Fix includes and removed libs folder

---
 src/egg/core/eggDisplay.cpp | 102 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 102 insertions(+)
 create mode 100644 src/egg/core/eggDisplay.cpp

(limited to 'src/egg/core/eggDisplay.cpp')

diff --git a/src/egg/core/eggDisplay.cpp b/src/egg/core/eggDisplay.cpp
new file mode 100644
index 00000000..16031605
--- /dev/null
+++ b/src/egg/core/eggDisplay.cpp
@@ -0,0 +1,102 @@
+#include "egg/core/eggDisplay.h"
+#include "nw4r/db/db_directPrint.h"
+#include "egg/core/eggXfbManager.h"
+#include "rvl/GX.h"
+#include "rvl/OS/OSHardware.h"
+
+extern "C" {
+    void PreRetraceCallback(u32 retraceCount) {
+        EGG::BaseSystem::getDisplay()->preVRetrace();
+    }
+}
+namespace EGG { 
+
+u32 Display::sTickPeriod = ((OS_BUS_CLOCK_SPEED >> 2)/125000)*300 >> 3;
+
+/* 80497570 */ 
+Display::Display(u8 maxRetrace) :
+    mMaxRetraces(maxRetrace), 
+    mScreenStateFlag(), 
+    mRetraceCount(0),
+    mFrameCount(0),
+    mClearColor(0x808080ff),
+    mClearZ(0xFFFFFF),
+    mBeginTick(0),
+    mFlag()
+{
+    mFlag.setBit(mFlag_SetClear);
+    mFlag.setBit(mFlag_WaitForRetrace);
+    nw4r::db::DirectPrint_Init();
+    VISetPreRetraceCallback(PreRetraceCallback);
+}
+
+/* vt 0x18 | 804975f0 */ 
+u32 Display::getTickPerFrame() {
+    return Video::getTickPerVRetrace();
+}
+/* vt 0x08 | 80497600 */ 
+void Display::beginFrame() {
+    
+    GXDrawDone();
+    if (
+        mFlag.onBit(mFlag_WaitForRetrace)
+        || (BaseSystem::getXfbMgr()->mNumXfbs == 1
+        && OSGetTick()-mLastTick > sTickPeriod)) { 
+        VIWaitForRetrace(); 
+    }
+    // Holds while the next XFB gets to its copy state
+    while (BaseSystem::getXfbMgr()->mToCopyXfb == 0 ) {
+        VIWaitForRetrace();
+    }
+    copyEFBtoXFB();
+    calcFrequency();
+    mFrameCount++;
+}
+
+/* vt 0x0C | 804976c0 */ 
+void Display::beginRender() {
+    return;
+}
+
+/* vt 0x10 | 804976d0 */  
+void Display::endRender() {
+    return;
+} 
+
+/* vt 0x14 | 804976e0 */ 
+void Display::endFrame() {
+    return;
+}
+
+
+/* vt 0x1C | 804976f0 */ 
+void Display::preVRetrace() {
+    mLastTick = OSGetTick();
+    if (VIGetRetraceCount() - mRetraceCount < mMaxRetraces) return;
+    if (mScreenStateFlag.onBit(mScreenStateFlag_SetBlack)) {
+        BaseSystem::getVideo()->setBlack(1);
+        mScreenStateFlag.resetBit(mScreenStateFlag_SetBlack);
+    }
+    BaseSystem::getXfbMgr()->setNextFrameBuffer();
+    mRetraceCount = VIGetRetraceCount();
+}
+
+/* 804977d0 */ 
+void Display::copyEFBtoXFB() {
+    if (mFlag.onBit(mFlag_SetClear)) { 
+        GXSetCopyClear(mClearColor, mClearZ);
+    }
+    GXRenderModeObj const* renderObj = BaseSystem::getVideo()->pRenderMode;
+    GXSetCopyFilter(renderObj->aa, renderObj->sample_pattern, renderObj->aa == 0, renderObj->vfilter);
+    BaseSystem::getXfbMgr()->copyEFB(mFlag.onBit(mFlag_SetClear));
+}
+
+/* 80497870 */ 
+void Display::calcFrequency() {
+    s32 endTick = OSGetTick();
+    mDeltaTick = endTick-mBeginTick;
+    mFrequency = 1000000.0f / ((mDeltaTick * 8) / ((OS_BUS_CLOCK_SPEED >> 2) / 125000));
+    mBeginTick = endTick;
+}
+
+} // namespace EGG
\ No newline at end of file
-- 
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