mirror of
https://github.com/zeldaret/ss
synced 2026-07-31 08:05:47 -04:00
elijah-thomas774
94 lines
2.4 KiB
C++
94 lines
2.4 KiB
C++
#include "egg/core/eggDisplay.h"
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#include "egg/core/eggXfbManager.h"
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#include "nw4r/db/db_directPrint.h"
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#include "rvl/GX.h" // IWYU pragma: export
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#include "rvl/OS.h" // IWYU pragma: export
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extern "C" {
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void PreRetraceCallback(u32 retraceCount) {
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EGG::BaseSystem::getDisplay()->preVRetrace();
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}
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}
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namespace EGG {
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u32 Display::sTickPeriod = ((OS_BUS_CLOCK_SPEED >> 2) / 125000) * 300 >> 3;
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Display::Display(u8 maxRetrace)
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: mMaxRetraces(maxRetrace),
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mScreenStateFlag(0),
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mRetraceCount(0),
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mFrameCount(0),
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mClearColor(0x808080ff),
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mClearZ(0xFFFFFF),
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mBeginTick(0),
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mFlag(0) {
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mFlag.setBit(mFlag_SetClear);
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mFlag.setBit(mFlag_WaitForRetrace);
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nw4r::db::DirectPrint_Init();
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VISetPreRetraceCallback(PreRetraceCallback);
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}
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u32 Display::getTickPerFrame() {
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return Video::getTickPerVRetrace();
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}
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void Display::beginFrame() {
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GXDrawDone();
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if (mFlag.onBit(mFlag_WaitForRetrace) ||
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(BaseSystem::getXfbMgr()->mNumXfbs == 1 && OSGetTick() - mLastTick > sTickPeriod)) {
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VIWaitForRetrace();
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}
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// Holds while the next XFB gets to its copy state
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while (BaseSystem::getXfbMgr()->mToCopyXfb == 0) {
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VIWaitForRetrace();
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}
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copyEFBtoXFB();
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calcFrequency();
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mFrameCount++;
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}
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void Display::beginRender() {
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return;
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}
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void Display::endRender() {
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return;
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}
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void Display::endFrame() {
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return;
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}
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void Display::preVRetrace() {
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mLastTick = OSGetTick();
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if (VIGetRetraceCount() - mRetraceCount < mMaxRetraces) {
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return;
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}
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if (mScreenStateFlag.onBit(mScreenStateFlag_SetBlack)) {
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BaseSystem::getVideo()->setBlack(1);
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mScreenStateFlag.resetBit(mScreenStateFlag_SetBlack);
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}
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BaseSystem::getXfbMgr()->setNextFrameBuffer();
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mRetraceCount = VIGetRetraceCount();
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}
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void Display::copyEFBtoXFB() {
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if (mFlag.onBit(mFlag_SetClear)) {
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GXSetCopyClear(mClearColor, mClearZ);
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}
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GXRenderModeObj const *renderObj = BaseSystem::getVideo()->pRenderMode;
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GXSetCopyFilter(renderObj->aa, renderObj->sample_pattern, renderObj->aa == 0, renderObj->vfilter);
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BaseSystem::getXfbMgr()->copyEFB(mFlag.onBit(mFlag_SetClear));
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}
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void Display::calcFrequency() {
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s32 endTick = OSGetTick();
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mDeltaTick = endTick - mBeginTick;
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mFrequency = 1000000.0f / ((mDeltaTick * 8) / ((OS_BUS_CLOCK_SPEED >> 2) / 125000));
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mBeginTick = endTick;
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}
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} // namespace EGG
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