switch to dtk setup (#2203)

* switch to dtk setup

* some cleanup / fixes

* cleanup d_a_alink literals

* Restore doxygen, update CI & README.md (#1)

* Fix build image ref (#2)

---------

Co-authored-by: Luke Street <luke@street.dev>

1 files changed, 619 insertions, 0 deletions

diff --git a/src/JSystem/JFramework/JFWDisplay.cpp b/src/JSystem/JFramework/JFWDisplay.cpp
new file mode 100644
index 0000000000..edf085d526
--- /dev/null
+++ b/src/JSystem/JFramework/JFWDisplay.cpp
@@ -0,0 +1,619 @@
+#include "JSystem/JFramework/JFWDisplay.h"
+#include "JSystem/J2DGraph/J2DOrthoGraph.h"
+#include "JSystem/JUtility/JUTAssert.h"
+#include "JSystem/JUtility/JUTConsole.h"
+#include "JSystem/JUtility/JUTDbPrint.h"
+#include "JSystem/JUtility/JUTProcBar.h"
+#include "dolphin/gx.h"
+
+/* 80272040-802720F8 26C980 00B8+00 1/1 0/0 0/0 .text            ctor_subroutine__10JFWDisplayFb */
+void JFWDisplay::ctor_subroutine(bool enableAlpha) {
+    mEnableAlpha = enableAlpha;
+    mClamp = GX_CLAMP_TOP | GX_CLAMP_BOTTOM;
+    mClearColor.set(0, 0, 0, 0);
+    mZClear = 0xFFFFFF;
+    mGamma = 0;
+    mFader = NULL;
+    mFrameRate = 1;
+    mTickRate = 0;
+    mCombinationRatio = 0.0f;
+    field_0x30 = 0;
+    field_0x2c = OSGetTick();
+    field_0x34 = 0;
+    field_0x48 = 0;
+    field_0x4a = 0;
+    mDrawDoneMethod = UNK_METHOD_0;
+    clearEfb_init();
+    JUTProcBar::create();
+    JUTProcBar::clear();
+    field_0x38 = 1;
+    field_0x3c = 0;
+    field_0x40 = 0;
+    field_0x44 = 0;
+}
+
+/* ############################################################################################## */
+/* 803C4020-803C4060 021140 0030+10 1/1 0/0 0/0 .data            e_mtx */
+static Mtx e_mtx ALIGN_DECL(32) = {
+    {1.0f, 0.0f, 0.0f, 0.0f},
+    {0.0f, 1.0f, 0.0f, 0.0f},
+    {0.0f, 0.0f, 1.0f, 0.0f},
+};
+
+/* 803C4060-803C40A0 021180 0040+00 1/1 0/0 0/0 .data            clear_z_TX */
+static u8 clear_z_TX[64] ALIGN_DECL(32) = {
+    0x00, 0xFF, 0x00, 0xFF, 0x00, 0xFF, 0x00, 0xFF, 0x00, 0xFF, 0x00, 0xFF, 0x00, 0xFF, 0x00, 0xFF,
+    0x00, 0xFF, 0x00, 0xFF, 0x00, 0xFF, 0x00, 0xFF, 0x00, 0xFF, 0x00, 0xFF, 0x00, 0xFF, 0x00, 0xFF,
+    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+};
+
+/* 802720F8-80272160 26CA38 0068+00 1/1 0/0 0/0 .text
+ * __ct__10JFWDisplayFP7JKRHeapQ26JUTXfb10EXfbNumberb           */
+JFWDisplay::JFWDisplay(JKRHeap* p_heap, JUTXfb::EXfbNumber xfb_num, bool enableAlpha) {
+    ctor_subroutine(enableAlpha);
+    mXfbManager = JUTXfb::createManager(p_heap, xfb_num);
+}
+
+/* 80272160-802721DC 26CAA0 007C+00 1/0 0/0 0/0 .text            __dt__10JFWDisplayFv */
+JFWDisplay::~JFWDisplay() {
+    if (JUTVideo::getManager() != NULL) {
+        waitBlanking(2);
+    }
+    JUTProcBar::destroy();
+    JUTXfb::destroyManager();
+    mXfbManager = NULL;
+}
+
+/* ############################################################################################## */
+/* 804511C0-804511C4 0006C0 0004+00 2/2 40/40 1/1 .sbss            sManager__10JFWDisplay */
+JFWDisplay* JFWDisplay::sManager;
+
+/* 802721DC-80272260 26CB1C 0084+00 0/0 1/1 0/0 .text
+ * createManager__10JFWDisplayFPC16_GXRenderModeObjP7JKRHeapQ26JUTXfb10EXfbNumberb */
+JFWDisplay* JFWDisplay::createManager(_GXRenderModeObj const* p_rObj, JKRHeap* p_heap,
+                                      JUTXfb::EXfbNumber xfb_num, bool enableAlpha) {
+    if (p_rObj != NULL) {
+        JUTVideo::getManager()->setRenderMode(p_rObj);
+    }
+
+    if (sManager == NULL) {
+        sManager = new JFWDisplay(p_heap, xfb_num, enableAlpha);
+    }
+
+    return sManager;
+}
+
+/* 80272260-802722B8 26CBA0 0058+00 2/2 0/0 0/0 .text            callDirectDraw__Fv */
+static void callDirectDraw() {
+    JUTChangeFrameBuffer(JUTXfb::getManager()->getDrawingXfb(),
+                         JUTVideo::getManager()->getEfbHeight(),
+                         JUTVideo::getManager()->getFbWidth());
+    JUTAssertion::flushMessage();
+}
+
+/* 802722B8-802723AC 26CBF8 00F4+00 3/3 0/0 0/0 .text            prepareCopyDisp__10JFWDisplayFv */
+void JFWDisplay::prepareCopyDisp() {
+    u16 width = JUTVideo::getManager()->getFbWidth();
+    u16 height = JUTVideo::getManager()->getEfbHeight();
+    f32 y_scaleF = GXGetYScaleFactor(height, JUTVideo::getManager()->getXfbHeight());
+    u16 line_num = GXGetNumXfbLines(height, y_scaleF);
+
+    GXSetCopyClear(mClearColor, mZClear);
+    GXSetDispCopySrc(0, 0, width, height);
+    GXSetDispCopyDst(width, line_num);
+    GXSetDispCopyYScale(y_scaleF);
+    VIFlush();
+    GXSetCopyFilter((GXBool)JUTVideo::getManager()->isAntiAliasing(),
+                    JUTVideo::getManager()->getSamplePattern(), GX_ENABLE,
+                    JUTVideo::getManager()->getVFilter());
+    GXSetCopyClamp((GXFBClamp)mClamp);
+    GXSetDispCopyGamma((GXGamma)mGamma);
+    GXSetZMode(GX_ENABLE, GX_LEQUAL, GX_ENABLE);
+    if (mEnableAlpha) {
+        GXSetAlphaUpdate(GX_ENABLE);
+    }
+}
+
+/* 802723AC-802723F4 26CCEC 0048+00 1/1 0/0 0/0 .text            drawendXfb_single__10JFWDisplayFv
+ */
+void JFWDisplay::drawendXfb_single() {
+    JUTXfb* manager = JUTXfb::getManager();
+    if (manager->getDrawingXfbIndex() >= 0) {
+        prepareCopyDisp();
+        JFWDrawDoneAlarm();
+        GXFlush();
+        manager->setDrawnXfbIndex(manager->getDrawingXfbIndex());
+    }
+}
+
+/* 802723F4-802724FC 26CD34 0108+00 1/1 0/0 0/0 .text            exchangeXfb_double__10JFWDisplayFv
+ */
+void JFWDisplay::exchangeXfb_double() {
+    JUTXfb* xfbMng = JUTXfb::getManager();
+
+    if (xfbMng->getDrawnXfbIndex() == xfbMng->getDisplayingXfbIndex()) {
+        if (xfbMng->getDrawingXfbIndex() >= 0) {
+            if (field_0x44 != NULL) {
+                field_0x44();
+            }
+
+            prepareCopyDisp();
+            GXCopyDisp(xfbMng->getDrawingXfb(), GX_TRUE);
+            if (mDrawDoneMethod == UNK_METHOD_0) {
+                xfbMng->setDrawnXfbIndex(xfbMng->getDrawingXfbIndex());
+                GXDrawDone();
+                JUTVideo::dummyNoDrawWait();
+            } else {
+                JUTVideo::drawDoneStart();
+            }
+
+            if (mDrawDoneMethod == UNK_METHOD_0) {
+                callDirectDraw();
+            }
+        }
+        s16 cur_xfb_index = xfbMng->getDrawingXfbIndex();
+        xfbMng->setDrawnXfbIndex(cur_xfb_index);
+        xfbMng->setDrawingXfbIndex(cur_xfb_index >= 0 ? cur_xfb_index ^ 1 : 0);
+    } else {
+        clearEfb(mClearColor);
+        if (xfbMng->getDrawingXfbIndex() < 0) {
+            xfbMng->setDrawingXfbIndex(0);
+        }
+    }
+}
+
+/* 802724FC-80272574 26CE3C 0078+00 1/1 0/0 0/0 .text            exchangeXfb_triple__10JFWDisplayFv
+ */
+void JFWDisplay::exchangeXfb_triple() {
+    JUTXfb* xfbMng = JUTXfb::getManager();
+
+    if (xfbMng->getDrawingXfbIndex() >= 0) {
+        callDirectDraw();
+    }
+
+    xfbMng->setDrawnXfbIndex(xfbMng->getDrawingXfbIndex());
+
+    s16 drawing_idx = xfbMng->getDrawingXfbIndex() + 1;
+    do {
+        if (drawing_idx >= 3 || drawing_idx < 0) {
+            drawing_idx = 0;
+        }
+    } while (drawing_idx == xfbMng->getDisplayingXfbIndex());
+    xfbMng->setDrawingXfbIndex(drawing_idx);
+}
+
+/* 80272574-802725F8 26CEB4 0084+00 1/1 0/0 0/0 .text            copyXfb_triple__10JFWDisplayFv */
+void JFWDisplay::copyXfb_triple() {
+    JUTXfb* xfbMng = JUTXfb::getManager();
+
+    if (xfbMng->getDrawingXfbIndex() >= 0) {
+        if (field_0x44 != NULL) {
+            field_0x44();
+        }
+        prepareCopyDisp();
+        GXCopyDisp(xfbMng->getDrawingXfb(), GX_TRUE);
+        GXPixModeSync();
+    }
+}
+
+/* 802725F8-8027268C 26CF38 0094+00 1/1 0/0 0/0 .text            preGX__10JFWDisplayFv */
+void JFWDisplay::preGX() {
+    GXInvalidateTexAll();
+    GXInvalidateVtxCache();
+
+    if (JUTVideo::getManager()->isAntiAliasing()) {
+        GXSetPixelFmt(GX_PF_RGB565_Z16, GX_ZC_LINEAR);
+        GXSetDither(GX_ENABLE);
+    } else {
+        if (mEnableAlpha) {
+            GXSetPixelFmt(GX_PF_RGBA6_Z24, GX_ZC_LINEAR);
+            GXSetDither(GX_ENABLE);
+        } else {
+            GXSetPixelFmt(GX_PF_RGB8_Z24, GX_ZC_LINEAR);
+            GXSetDither(GX_DISABLE);
+        }
+    }
+}
+
+/* 8027268C-80272798 26CFCC 010C+00 1/1 0/0 0/0 .text            endGX__10JFWDisplayFv */
+void JFWDisplay::endGX() {
+    f32 width = JUTVideo::getManager()->getFbWidth();
+    f32 height = JUTVideo::getManager()->getEfbHeight();
+
+    J2DOrthoGraph ortho(0.0f, 0.0f, width, height, -1.0f, 1.0f);
+
+    if (mFader != NULL) {
+        ortho.setPort();
+        mFader->control();
+    }
+    ortho.setPort();
+    JUTDbPrint::getManager()->flush();
+
+    if (JUTConsoleManager::getManager() != NULL) {
+        ortho.setPort();
+        JUTConsoleManager::getManager()->draw();
+    }
+
+    ortho.setPort();
+    JUTProcBar::getManager()->draw();
+
+    if (mDrawDoneMethod != UNK_METHOD_0 || JUTXfb::getManager()->getBufferNum() == 1) {
+        JUTAssertion::flushMessage_dbPrint();
+    }
+    GXFlush();
+}
+
+/* 80272798-80272A04 26D0D8 026C+00 1/0 0/0 0/0 .text            beginRender__10JFWDisplayFv */
+void JFWDisplay::beginRender() {
+    if (field_0x40) {
+        JUTProcBar::getManager()->wholeLoopEnd();
+    }
+
+    if (field_0x40) {
+        JUTProcBar::getManager()->wholeLoopStart();
+        JUTProcBar::getManager()->idleStart();
+    }
+
+    waitForTick(mTickRate, mFrameRate);
+    JUTVideo::getManager()->waitRetraceIfNeed();
+
+    OSTick tick = OSGetTick();
+    field_0x30 = tick - field_0x2c;
+    field_0x2c = tick;
+    field_0x34 = field_0x2c - JUTVideo::getVideoLastTick();
+
+    if (field_0x40) {
+        JUTProcBar::getManager()->idleEnd();
+    }
+
+    if (field_0x40) {
+        JUTProcBar::getManager()->gpStart();
+
+        JUTXfb* xfbMng = JUTXfb::getManager();
+        switch (xfbMng->getBufferNum()) {
+        case 1:
+            if (xfbMng->getSDrawingFlag() != 2) {
+                xfbMng->setSDrawingFlag(1);
+                clearEfb(mClearColor);
+            } else {
+                xfbMng->setSDrawingFlag(1);
+            }
+            xfbMng->setDrawingXfbIndex(field_0x48);
+            break;
+        case 2:
+            exchangeXfb_double();
+            break;
+        case 3:
+            exchangeXfb_triple();
+            break;
+        default:
+            break;
+        }
+    }
+
+    field_0x3c++;
+    field_0x40 = field_0x3c >= field_0x38;
+
+    if (field_0x40) {
+        field_0x3c = 0;
+    }
+
+    if (field_0x40) {
+        clearEfb();
+        preGX();
+    }
+}
+
+/* 80272A04-80272AB0 26D344 00AC+00 1/0 0/0 0/0 .text            endRender__10JFWDisplayFv */
+void JFWDisplay::endRender() {
+    endGX();
+
+    if (field_0x40) {
+        switch (JUTXfb::getManager()->getBufferNum()) {
+        case 1:
+            drawendXfb_single();
+        case 2:
+            break;
+        case 3:
+            copyXfb_triple();
+        default:
+            break;
+        }
+    }
+
+    JUTProcBar::getManager()->cpuStart();
+    calcCombinationRatio();
+}
+
+/* ############################################################################################## */
+/* 804511C4-804511C8 0006C4 0004+00 1/1 0/0 0/0 .sbss            prevFrame$2597 */
+static u32 prevFrame;
+
+/* 804511C8-804511D0 0006C8 0008+00 1/1 0/0 0/0 .sbss            None */
+static s8 data_804511C8;
+
+/* 80272AB0-80272C60 26D3F0 01B0+00 1/0 0/0 0/0 .text            endFrame__10JFWDisplayFv */
+void JFWDisplay::endFrame() {
+    JUTProcBar::getManager()->cpuEnd();
+
+    if (field_0x40) {
+        JUTProcBar::getManager()->gpWaitStart();
+        switch (JUTXfb::getManager()->getBufferNum()) {
+        case 1:
+            break;
+        case 2:
+            JFWDrawDoneAlarm();
+            GXFlush();
+            break;
+        case 3:
+            JFWDrawDoneAlarm();
+            GXFlush();
+            break;
+        default:
+            break;
+        }
+
+        JUTProcBar::getManager()->gpWaitEnd();
+        JUTProcBar::getManager()->gpEnd();
+    }
+
+    if (field_0x40) {
+        if (data_804511C8 == 0) {
+            prevFrame = VIGetRetraceCount();
+            data_804511C8 = 1;
+        }
+        u32 retrace_cnt = VIGetRetraceCount();
+        JUTProcBar::getManager()->setCostFrame(retrace_cnt - prevFrame);
+        prevFrame = retrace_cnt;
+    }
+}
+
+/* 80272C60-80272CB0 26D5A0 0050+00 1/1 1/1 0/0 .text            waitBlanking__10JFWDisplayFi */
+void JFWDisplay::waitBlanking(int param_0) {
+    while (param_0-- > 0) {
+        waitForTick(mTickRate, mFrameRate);
+    }
+}
+
+/* ############################################################################################## */
+/* 804511D0-804511D4 0006D0 0004+00 1/1 0/0 0/0 .sbss            nextTick$2642 */
+static OSTime nextTick ALIGN_DECL(8);
+
+/* 804511D8-804511DC 0006D8 0004+00 1/1 0/0 0/0 .sbss            None */
+static s8 data_804511D8;
+
+/* 804511DC-804511E0 0006DC 0004+00 1/1 0/0 0/0 .sbss            nextCount$2650 */
+static u32 nextCount;
+
+/* 804511E0-804511E8 0006E0 0008+00 1/1 0/0 0/0 .sbss            None */
+static s8 data_804511E0;
+
+/* 80272CB0-80272DD0 26D5F0 0120+00 2/2 0/0 0/0 .text            waitForTick__FUlUs */
+static void waitForTick(u32 p1, u16 p2) {
+    if (p1 != 0) {
+        static s64 nextTick = OSGetTime();
+        s64 time = OSGetTime();
+        while (time < nextTick) {
+            JFWDisplay::getManager()->threadSleep((nextTick - time));
+            time = OSGetTime();
+        }
+        nextTick = time + p1;
+    }
+    else {
+        static u32 nextCount = VIGetRetraceCount();
+        u32 uVar1 = (p2 == 0) ? 1 : p2;
+        OSMessage msg;
+        do {
+            if (!OSReceiveMessage(JUTVideo::getManager()->getMessageQueue(), &msg, OS_MESSAGE_BLOCK)) {
+                msg = 0;
+            }
+        } while (((int)msg - (int)nextCount) < 0);
+        nextCount = (int)msg + uVar1;
+    }
+}
+
+/* 80430FE4-80430FF0 05DD04 000C+00 4/4 0/0 0/0 .bss             sList__8JFWAlarm */
+JSUList<JFWAlarm> JFWAlarm::sList(false);
+
+/* 80272DD0-80272E10 26D710 0040+00 1/1 0/0 0/0 .text JFWThreadAlarmHandler__FP7OSAlarmP9OSContext
+ */
+static void JFWThreadAlarmHandler(OSAlarm* p_alarm, OSContext* p_ctx) {
+    JFWAlarm* alarm = static_cast<JFWAlarm*>(p_alarm);
+    alarm->removeLink();
+    OSResumeThread(alarm->getThread());
+}
+
+/* 80272E10-80272EB8 26D750 00A8+00 1/1 0/0 0/0 .text            threadSleep__10JFWDisplayFx */
+void JFWDisplay::threadSleep(s64 time) {
+    JFWAlarm alarm;
+    alarm.createAlarm();
+    alarm.setThread(OSGetCurrentThread());
+    s32 status = OSDisableInterrupts();
+    alarm.appendLink();
+
+    OSSetAlarm(&alarm, time, JFWThreadAlarmHandler);
+    OSSuspendThread(alarm.getThread());
+    OSRestoreInterrupts(status);
+}
+
+/* ############################################################################################## */
+/* 80430FF0-80431010 05DD10 0020+00 2/2 0/0 0/0 .bss             clear_z_tobj */
+static GXTexObj clear_z_tobj;
+
+/* 80272EB8-80272F2C 26D7F8 0074+00 1/1 0/0 0/0 .text            clearEfb_init__10JFWDisplayFv */
+void JFWDisplay::clearEfb_init() {
+    GXInitTexObj(&clear_z_tobj, &clear_z_TX, 4, 4, GX_TF_Z24X8, GX_REPEAT, GX_REPEAT, GX_FALSE);
+    GXInitTexObjLOD(&clear_z_tobj, GX_NEAR, GX_NEAR, 0.0f, 0.0f, 0.0f, GX_FALSE, GX_FALSE,
+                    GX_ANISO_1);
+}
+
+/* 80272F2C-80272F58 26D86C 002C+00 1/1 0/0 0/0 .text            clearEfb__10JFWDisplayFv */
+void JFWDisplay::clearEfb() {
+    clearEfb(mClearColor);
+}
+
+/* 80272F58-80272F9C 26D898 0044+00 3/3 0/0 0/0 .text            clearEfb__10JFWDisplayF8_GXColor */
+void JFWDisplay::clearEfb(GXColor color) {
+    int width = JUTVideo::getManager()->getFbWidth();
+    int height = JUTVideo::getManager()->getEfbHeight();
+
+    clearEfb(0, 0, width, height, color);
+}
+
+/* 80272F9C-8027331C 26D8DC 0380+00 1/1 0/0 0/0 .text clearEfb__10JFWDisplayFiiii8_GXColor */
+void JFWDisplay::clearEfb(int param_0, int param_1, int param_2, int param_3, GXColor color) {
+    u16 width;
+    u16 height;
+    Mtx44 mtx;
+
+    JUTVideo::getManager()->getBounds(width, height);
+
+    C_MTXOrtho(mtx, 0.0f, height, 0.0f, width, 0.0f, 1.0f);
+    GXSetProjection(mtx, GX_ORTHOGRAPHIC);
+    GXSetViewport(0.0f, 0.0f, width, height, 0.0f, 1.0f);
+    GXSetScissor(0, 0, width, height);
+
+    GXLoadPosMtxImm(e_mtx, GX_PNMTX0);
+    GXSetCurrentMtx(0);
+    GXClearVtxDesc();
+    GXSetVtxDesc(GX_VA_POS, GX_DIRECT);
+    GXSetVtxDesc(GX_VA_TEX0, GX_DIRECT);
+    GXSetVtxAttrFmt(GX_VTXFMT0, GX_VA_POS, GX_CLR_RGB, GX_RGBX8, 0);
+    GXSetVtxAttrFmt(GX_VTXFMT0, GX_VA_TEX0, GX_CLR_RGBA, GX_RGB565, 0);
+    GXSetNumChans(0);
+    GXSetChanCtrl(GX_COLOR0A0, GX_DISABLE, GX_SRC_REG, GX_SRC_REG, GX_LIGHT_NULL, GX_DF_NONE,
+                  GX_AF_NONE);
+    GXSetChanCtrl(GX_COLOR1A1, GX_DISABLE, GX_SRC_REG, GX_SRC_REG, GX_LIGHT_NULL, GX_DF_NONE,
+                  GX_AF_NONE);
+    GXSetNumTexGens(1);
+    GXSetTexCoordGen2(GX_TEXCOORD0, GX_TG_MTX2x4, GX_TG_TEX0, 60, GX_DISABLE, 125);
+    GXLoadTexObj(&clear_z_tobj, GX_TEXMAP0);
+    GXSetNumTevStages(1);
+    GXSetTevColor(GX_TEVREG0, color);
+    GXSetTevOrder(GX_TEVSTAGE0, GX_TEXCOORD0, GX_TEXMAP0, GX_COLOR_NULL);
+    GXSetTevColorIn(GX_TEVSTAGE0, GX_CC_ZERO, GX_CC_ZERO, GX_CC_ZERO, GX_CC_C0);
+    GXSetTevColorOp(GX_TEVSTAGE0, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_ENABLE, GX_TEVPREV);
+    GXSetTevAlphaIn(GX_TEVSTAGE0, GX_CA_ZERO, GX_CA_ZERO, GX_CA_ZERO, GX_CA_A0);
+    GXSetTevAlphaOp(GX_TEVSTAGE0, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_ENABLE, GX_TEVPREV);
+    GXSetAlphaCompare(GX_ALWAYS, 0, GX_AOP_OR, GX_ALWAYS, 0);
+    GXSetZTexture(GX_ZT_REPLACE, GX_TF_Z24X8, 0);
+    GXSetZCompLoc(GX_DISABLE);
+    GXSetBlendMode(GX_BM_NONE, GX_BL_ZERO, GX_BL_ZERO, GX_LO_NOOP);
+
+    if (mEnableAlpha) {
+        GXSetAlphaUpdate(GX_ENABLE);
+        GXSetDstAlpha(GX_ENABLE, color.a);
+    }
+    GXSetZMode(GX_ENABLE, GX_ALWAYS, GX_ENABLE);
+    GXSetCullMode(GX_CULL_BACK);
+
+    GXBegin(GX_QUADS, GX_VTXFMT0, 4);
+    GXPosition2u16(param_0, param_1);
+    GXTexCoord2u8(0, 0);
+
+    GXPosition2u16(param_0 + param_2, param_1);
+    GXTexCoord2u8(1, 0);
+
+    GXPosition2u16(param_0 + param_2, param_1 + param_3);
+    GXTexCoord2u8(1, 1);
+
+    GXPosition2u16(param_0, param_1 + param_3);
+    GXTexCoord2u8(0, 1);
+
+    GXSetZTexture(GX_ZT_DISABLE, GX_TF_Z24X8, 0);
+    GXSetZCompLoc(GX_ENABLE);
+    if (mEnableAlpha) {
+        GXSetDstAlpha(GX_DISABLE, color.a);
+    }
+}
+
+/* 8027331C-802733A8 26DC5C 008C+00 1/1 0/0 0/0 .text calcCombinationRatio__10JFWDisplayFv */
+void JFWDisplay::calcCombinationRatio() {
+    u32 vidInterval = JUTVideo::getVideoInterval();
+    s32 unk30 = field_0x30 * 2;
+
+    s32 i = vidInterval;
+    for (; i < unk30; i += vidInterval) {
+    }
+
+    s32 tmp = (i - unk30) - field_0x34;
+    if (tmp < 0) {
+        tmp += vidInterval;
+    }
+    mCombinationRatio = (f32)tmp / (f32)field_0x30;
+    if (mCombinationRatio > 1.0f) {
+        mCombinationRatio = 1.0f;
+    }
+}
+
+/* 802733A8-80273484 26DCE8 00DC+00 2/2 0/0 0/0 .text            JFWDrawDoneAlarm__Fv */
+static void JFWDrawDoneAlarm() {
+    JFWAlarm alarm;
+    s32 status = OSDisableInterrupts();
+    alarm.createAlarm();
+    alarm.appendLink();
+    OSSetAlarm(&alarm, 0.5 * (*(u32*)0x800000F8 / 4), JFWGXAbortAlarmHandler);
+    GXDrawDone();
+    alarm.cancelAlarm();
+    alarm.removeLink();
+    OSRestoreInterrupts(status);
+}
+
+/* 80273484-802734FC 26DDC4 0078+00 1/1 0/0 0/0 .text
+ * JFWGXAbortAlarmHandler__FP7OSAlarmP9OSContext                */
+static void JFWGXAbortAlarmHandler(OSAlarm* param_0, OSContext* param_1) {
+    diagnoseGpHang();
+    GXAbortFrame();
+    GXWGFifo.u8 = 0x61;
+    GXWGFifo.u32 = 0x5800000F;
+
+    GXFifoObj* fifo = GXGetCPUFifo();
+    if (fifo != NULL) {
+        void* base = GXGetFifoBase(fifo);
+        u32 size = GXGetFifoSize(fifo);
+        GXInit(base, size);
+    }
+    GXSetDrawDone();
+}
+
+/* 802734FC-802736DC 26DE3C 01E0+00 1/1 0/0 0/0 .text            diagnoseGpHang__Fv */
+static void diagnoseGpHang() {
+    u32 sp28;
+    u32 sp24;
+    u32 sp20;
+    u32 sp1C;
+    u32 sp18;
+    u32 sp14;
+    u32 sp10;
+    u32 spC;
+    bool readIdle;
+    bool commandIdle;
+    bool sp8;
+
+    GXReadXfRasMetric(&sp24, &sp28, &sp1C, &sp20);
+    GXReadXfRasMetric(&sp14, &sp18, &spC, &sp10);
+
+    u32 temp_r31 = sp28 == sp18;
+    u32 temp_r30 = sp24 == sp14;
+    u32 temp_r0 = sp20 != sp10;
+    u32 temp_r0_2 = sp1C != spC;
+
+    GXGetGPStatus((GXBool*)&sp8, (GXBool*)&sp8, (GXBool*)&readIdle, (GXBool*)&commandIdle,
+                  (GXBool*)&sp8);
+
+    OSReport("GP status %d%d%d%d%d%d --> ", readIdle, commandIdle, temp_r31, temp_r30, temp_r0,
+             temp_r0_2);
+
+    if (!temp_r30 && temp_r0) {
+        OSReport("GP hang due to XF stall bug.\n");
+    } else if (!temp_r31 && temp_r30 && temp_r0) {
+        OSReport("GP hang due to unterminated primitive.\n");
+    } else if (!commandIdle && temp_r31 && temp_r30 && temp_r0) {
+        OSReport("GP hang due to illegal instruction.\n");
+    } else if (readIdle && commandIdle && temp_r31 && temp_r30 && temp_r0 && temp_r0_2) {
+        OSReport("GP appears to be not hung (waiting for input).\n");
+    } else {
+        OSReport("GP is in unknown state.\n");
+    }
+}
\ No newline at end of file