void ProcessStoreTileBE(DRAW_CONTEXT *pDC, uint32_t workerId, uint32_t macroTile, STORE_TILES_DESC* pDesc,
SWR_RENDERTARGET_ATTACHMENT attachment)
{
SWR_CONTEXT *pContext = pDC->pContext;
AR_BEGIN(BEStoreTiles, pDC->drawId);
SWR_FORMAT srcFormat;
switch (attachment)
{
case SWR_ATTACHMENT_COLOR0:
case SWR_ATTACHMENT_COLOR1:
case SWR_ATTACHMENT_COLOR2:
case SWR_ATTACHMENT_COLOR3:
case SWR_ATTACHMENT_COLOR4:
case SWR_ATTACHMENT_COLOR5:
case SWR_ATTACHMENT_COLOR6:
case SWR_ATTACHMENT_COLOR7: srcFormat = KNOB_COLOR_HOT_TILE_FORMAT; break;
case SWR_ATTACHMENT_DEPTH: srcFormat = KNOB_DEPTH_HOT_TILE_FORMAT; break;
case SWR_ATTACHMENT_STENCIL: srcFormat = KNOB_STENCIL_HOT_TILE_FORMAT; break;
default: SWR_INVALID("Unknown attachment: %d", attachment); srcFormat = KNOB_COLOR_HOT_TILE_FORMAT; break;
}
uint32_t x, y;
MacroTileMgr::getTileIndices(macroTile, x, y);
// Only need to store the hottile if it's been rendered to...
HOTTILE *pHotTile = pContext->pHotTileMgr->GetHotTileNoLoad(pContext, pDC, macroTile, attachment, false);
if (pHotTile)
{
// clear if clear is pending (i.e., not rendered to), then mark as dirty for store.
if (pHotTile->state == HOTTILE_CLEAR)
{
PFN_CLEAR_TILES pfnClearTiles = gClearTilesTable[srcFormat];
SWR_ASSERT(pfnClearTiles != nullptr);
pfnClearTiles(pDC, attachment, macroTile, pHotTile->renderTargetArrayIndex, pHotTile->clearData, pDesc->rect);
}
if (pHotTile->state == HOTTILE_DIRTY || pDesc->postStoreTileState == (SWR_TILE_STATE)HOTTILE_DIRTY)
{
int32_t destX = KNOB_MACROTILE_X_DIM * x;
int32_t destY = KNOB_MACROTILE_Y_DIM * y;
pContext->pfnStoreTile(GetPrivateState(pDC), srcFormat,
attachment, destX, destY, pHotTile->renderTargetArrayIndex, pHotTile->pBuffer);
}
if (pHotTile->state == HOTTILE_DIRTY || pHotTile->state == HOTTILE_RESOLVED)
{
if (!(pDesc->postStoreTileState == (SWR_TILE_STATE)HOTTILE_DIRTY && pHotTile->state == HOTTILE_RESOLVED))
{
pHotTile->state = (HOTTILE_STATE)pDesc->postStoreTileState;
}
}
}
AR_END(BEStoreTiles, 1);
}
void ClipPoints(DRAW_CONTEXT *pDC, PA_STATE& pa, uint32_t workerId, simdvector prims[], uint32_t primMask, simdscalari primId, simdscalari viewportIdx)
{
SWR_CONTEXT *pContext = pDC->pContext;
AR_BEGIN(FEClipPoints, pDC->drawId);
Clipper<1> clipper(workerId, pDC);
clipper.ExecuteStage(pa, prims, primMask, primId, viewportIdx);
AR_END(FEClipPoints, 1);
}
//////////////////////////////////////////////////////////////////////////
/// @brief Process compute work.
/// @param pDC - pointer to draw context (dispatch).
/// @param workerId - The unique worker ID that is assigned to this thread.
/// @param threadGroupId - the linear index for the thread group within the dispatch.
void ProcessComputeBE(DRAW_CONTEXT* pDC, uint32_t workerId, uint32_t threadGroupId, void*& pSpillFillBuffer, void*& pScratchSpace)
{
SWR_CONTEXT *pContext = pDC->pContext;
AR_BEGIN(BEDispatch, pDC->drawId);
const COMPUTE_DESC* pTaskData = (COMPUTE_DESC*)pDC->pDispatch->GetTasksData();
SWR_ASSERT(pTaskData != nullptr);
// Ensure spill fill memory has been allocated.
size_t spillFillSize = pDC->pState->state.totalSpillFillSize;
if (spillFillSize && pSpillFillBuffer == nullptr)
{
pSpillFillBuffer = pDC->pArena->AllocAlignedSync(spillFillSize, KNOB_SIMD_BYTES);
}
size_t scratchSpaceSize = pDC->pState->state.scratchSpaceSize * pDC->pState->state.scratchSpaceNumInstances;
if (scratchSpaceSize && pScratchSpace == nullptr)
{
pScratchSpace = pDC->pArena->AllocAlignedSync(scratchSpaceSize, KNOB_SIMD_BYTES);
}
const API_STATE& state = GetApiState(pDC);
SWR_CS_CONTEXT csContext{ 0 };
csContext.tileCounter = threadGroupId;
csContext.dispatchDims[0] = pTaskData->threadGroupCountX;
csContext.dispatchDims[1] = pTaskData->threadGroupCountY;
csContext.dispatchDims[2] = pTaskData->threadGroupCountZ;
csContext.pTGSM = pContext->ppScratch[workerId];
csContext.pSpillFillBuffer = (uint8_t*)pSpillFillBuffer;
csContext.pScratchSpace = (uint8_t*)pScratchSpace;
csContext.scratchSpacePerSimd = pDC->pState->state.scratchSpaceSize;
state.pfnCsFunc(GetPrivateState(pDC), &csContext);
UPDATE_STAT_BE(CsInvocations, state.totalThreadsInGroup);
AR_END(BEDispatch, 1);
}
DWORD workerThreadMain(LPVOID pData)
{
THREAD_DATA *pThreadData = (THREAD_DATA*)pData;
SWR_CONTEXT *pContext = pThreadData->pContext;
uint32_t threadId = pThreadData->threadId;
uint32_t workerId = pThreadData->workerId;
bindThread(pContext, threadId, pThreadData->procGroupId, pThreadData->forceBindProcGroup);
RDTSC_INIT(threadId);
uint32_t numaNode = pThreadData->numaId;
uint32_t numaMask = pContext->threadPool.numaMask;
// flush denormals to 0
_mm_setcsr(_mm_getcsr() | _MM_FLUSH_ZERO_ON | _MM_DENORMALS_ZERO_ON);
// Track tiles locked by other threads. If we try to lock a macrotile and find its already
// locked then we'll add it to this list so that we don't try and lock it again.
TileSet lockedTiles;
// each worker has the ability to work on any of the queued draws as long as certain
// conditions are met. the data associated
// with a draw is guaranteed to be active as long as a worker hasn't signaled that he
// has moved on to the next draw when he determines there is no more work to do. The api
// thread will not increment the head of the dc ring until all workers have moved past the
// current head.
// the logic to determine what to work on is:
// 1- try to work on the FE any draw that is queued. For now there are no dependencies
// on the FE work, so any worker can grab any FE and process in parallel. Eventually
// we'll need dependency tracking to force serialization on FEs. The worker will try
// to pick an FE by atomically incrementing a counter in the swr context. he'll keep
// trying until he reaches the tail.
// 2- BE work must be done in strict order. we accomplish this today by pulling work off
// the oldest draw (ie the head) of the dcRing. the worker can determine if there is
// any work left by comparing the total # of binned work items and the total # of completed
// work items. If they are equal, then there is no more work to do for this draw, and
// the worker can safely increment its oldestDraw counter and move on to the next draw.
std::unique_lock<std::mutex> lock(pContext->WaitLock, std::defer_lock);
auto threadHasWork = [&](uint32_t curDraw) { return curDraw != pContext->dcRing.GetHead(); };
uint32_t curDrawBE = 0;
uint32_t curDrawFE = 0;
bool bShutdown = false;
while (true)
{
if (bShutdown && !threadHasWork(curDrawBE))
{
break;
}
uint32_t loop = 0;
while (loop++ < KNOB_WORKER_SPIN_LOOP_COUNT && !threadHasWork(curDrawBE))
{
_mm_pause();
}
if (!threadHasWork(curDrawBE))
{
lock.lock();
// check for thread idle condition again under lock
if (threadHasWork(curDrawBE))
{
lock.unlock();
continue;
}
AR_BEGIN(WorkerWaitForThreadEvent, 0);
pContext->FifosNotEmpty.wait(lock);
lock.unlock();
AR_END(WorkerWaitForThreadEvent, 0);
}
if (IsBEThread)
{
AR_BEGIN(WorkerWorkOnFifoBE, 0);
bShutdown |= WorkOnFifoBE(pContext, workerId, curDrawBE, lockedTiles, numaNode, numaMask);
AR_END(WorkerWorkOnFifoBE, 0);
WorkOnCompute(pContext, workerId, curDrawBE);
}
if (IsFEThread)
{
WorkOnFifoFE(pContext, workerId, curDrawFE);
if (!IsBEThread)
{
curDrawBE = curDrawFE;
}
}
}
return 0;
}
//////////////////////////////////////////////////////////////////////////
/// @brief If there is any BE work then go work on it.
/// @param pContext - pointer to SWR context.
/// @param workerId - The unique worker ID that is assigned to this thread.
/// @param curDrawBE - This tracks the draw contexts that this thread has processed. Each worker thread
/// has its own curDrawBE counter and this ensures that each worker processes all the
/// draws in order.
/// @param lockedTiles - This is the set of tiles locked by other threads. Each thread maintains its
/// own set and each time it fails to lock a macrotile, because its already locked,
/// then it will add that tile to the lockedTiles set. As a worker begins to work
/// on future draws the lockedTiles ensure that it doesn't work on tiles that may
/// still have work pending in a previous draw. Additionally, the lockedTiles is
/// hueristic that can steer a worker back to the same macrotile that it had been
/// working on in a previous draw.
/// @returns true if worker thread should shutdown
bool WorkOnFifoBE(
SWR_CONTEXT *pContext,
uint32_t workerId,
uint32_t &curDrawBE,
TileSet& lockedTiles,
uint32_t numaNode,
uint32_t numaMask)
{
bool bShutdown = false;
// Find the first incomplete draw that has pending work. If no such draw is found then
// return. FindFirstIncompleteDraw is responsible for incrementing the curDrawBE.
uint32_t drawEnqueued = 0;
if (FindFirstIncompleteDraw(pContext, curDrawBE, drawEnqueued) == false)
{
return false;
}
uint32_t lastRetiredDraw = pContext->dcRing[curDrawBE % KNOB_MAX_DRAWS_IN_FLIGHT].drawId - 1;
// Reset our history for locked tiles. We'll have to re-learn which tiles are locked.
lockedTiles.clear();
// Try to work on each draw in order of the available draws in flight.
// 1. If we're on curDrawBE, we can work on any macrotile that is available.
// 2. If we're trying to work on draws after curDrawBE, we are restricted to
// working on those macrotiles that are known to be complete in the prior draw to
// maintain order. The locked tiles provides the history to ensures this.
for (uint32_t i = curDrawBE; IDComparesLess(i, drawEnqueued); ++i)
{
DRAW_CONTEXT *pDC = &pContext->dcRing[i % KNOB_MAX_DRAWS_IN_FLIGHT];
if (pDC->isCompute) return false; // We don't look at compute work.
// First wait for FE to be finished with this draw. This keeps threading model simple
// but if there are lots of bubbles between draws then serializing FE and BE may
// need to be revisited.
if (!pDC->doneFE) return false;
// If this draw is dependent on a previous draw then we need to bail.
if (CheckDependency(pContext, pDC, lastRetiredDraw))
{
return false;
}
// Grab the list of all dirty macrotiles. A tile is dirty if it has work queued to it.
auto ¯oTiles = pDC->pTileMgr->getDirtyTiles();
for (auto tile : macroTiles)
{
uint32_t tileID = tile->mId;
// Only work on tiles for this numa node
uint32_t x, y;
pDC->pTileMgr->getTileIndices(tileID, x, y);
if (((x ^ y) & numaMask) != numaNode)
{
continue;
}
if (!tile->getNumQueued())
{
continue;
}
// can only work on this draw if it's not in use by other threads
if (lockedTiles.find(tileID) != lockedTiles.end())
{
continue;
}
if (tile->tryLock())
{
BE_WORK *pWork;
AR_BEGIN(WorkerFoundWork, pDC->drawId);
uint32_t numWorkItems = tile->getNumQueued();
SWR_ASSERT(numWorkItems);
pWork = tile->peek();
SWR_ASSERT(pWork);
if (pWork->type == DRAW)
{
pContext->pHotTileMgr->InitializeHotTiles(pContext, pDC, workerId, tileID);
}
else if (pWork->type == SHUTDOWN)
{
bShutdown = true;
}
while ((pWork = tile->peek()) != nullptr)
{
pWork->pfnWork(pDC, workerId, tileID, &pWork->desc);
tile->dequeue();
}
AR_END(WorkerFoundWork, numWorkItems);
_ReadWriteBarrier();
pDC->pTileMgr->markTileComplete(tileID);
// Optimization: If the draw is complete and we're the last one to have worked on it then
// we can reset the locked list as we know that all previous draws before the next are guaranteed to be complete.
if ((curDrawBE == i) && (bShutdown || pDC->pTileMgr->isWorkComplete()))
{
// We can increment the current BE and safely move to next draw since we know this draw is complete.
curDrawBE++;
CompleteDrawContextInl(pContext, pDC);
lastRetiredDraw++;
lockedTiles.clear();
break;
}
if (bShutdown)
{
break;
}
}
else
{
// This tile is already locked. So let's add it to our locked tiles set. This way we don't try locking this one again.
lockedTiles.insert(tileID);
}
}
}
return bShutdown;
}
void BackendNullPS(DRAW_CONTEXT *pDC, uint32_t workerId, uint32_t x, uint32_t y, SWR_TRIANGLE_DESC &work, RenderOutputBuffers &renderBuffers)
{
SWR_CONTEXT *pContext = pDC->pContext;
AR_BEGIN(BENullBackend, pDC->drawId);
///@todo: handle center multisample pattern
AR_BEGIN(BESetup, pDC->drawId);
const API_STATE &state = GetApiState(pDC);
BarycentricCoeffs coeffs;
SetupBarycentricCoeffs(&coeffs, work);
uint8_t *pDepthBuffer, *pStencilBuffer;
SetupRenderBuffers(NULL, &pDepthBuffer, &pStencilBuffer, 0, renderBuffers);
SWR_PS_CONTEXT psContext;
// skip SetupPixelShaderContext(&psContext, ...); // not needed here
AR_END(BESetup, 0);
simdscalar vYSamplePosUL = _simd_add_ps(vULOffsetsY, _simd_set1_ps(static_cast<float>(y)));
const simdscalar dy = _simd_set1_ps(static_cast<float>(SIMD_TILE_Y_DIM));
const SWR_MULTISAMPLE_POS& samplePos = state.rastState.samplePositions;
for (uint32_t yy = y; yy < y + KNOB_TILE_Y_DIM; yy += SIMD_TILE_Y_DIM)
{
simdscalar vXSamplePosUL = _simd_add_ps(vULOffsetsX, _simd_set1_ps(static_cast<float>(x)));
const simdscalar dx = _simd_set1_ps(static_cast<float>(SIMD_TILE_X_DIM));
for (uint32_t xx = x; xx < x + KNOB_TILE_X_DIM; xx += SIMD_TILE_X_DIM)
{
// iterate over active samples
unsigned long sample = 0;
uint32_t sampleMask = state.blendState.sampleMask;
while (_BitScanForward(&sample, sampleMask))
{
sampleMask &= ~(1 << sample);
simdmask coverageMask = work.coverageMask[sample] & MASK;
if (coverageMask)
{
// offset depth/stencil buffers current sample
uint8_t *pDepthSample = pDepthBuffer + RasterTileDepthOffset(sample);
uint8_t *pStencilSample = pStencilBuffer + RasterTileStencilOffset(sample);
if (state.depthHottileEnable && state.depthBoundsState.depthBoundsTestEnable)
{
static_assert(KNOB_DEPTH_HOT_TILE_FORMAT == R32_FLOAT, "Unsupported depth hot tile format");
const simdscalar z = _simd_load_ps(reinterpret_cast<const float *>(pDepthSample));
const float minz = state.depthBoundsState.depthBoundsTestMinValue;
const float maxz = state.depthBoundsState.depthBoundsTestMaxValue;
coverageMask &= CalcDepthBoundsAcceptMask(z, minz, maxz);
}
AR_BEGIN(BEBarycentric, pDC->drawId);
// calculate per sample positions
psContext.vX.sample = _simd_add_ps(vXSamplePosUL, samplePos.vX(sample));
psContext.vY.sample = _simd_add_ps(vYSamplePosUL, samplePos.vY(sample));
CalcSampleBarycentrics(coeffs, psContext);
// interpolate and quantize z
psContext.vZ = vplaneps(coeffs.vZa, coeffs.vZb, coeffs.vZc, psContext.vI.sample, psContext.vJ.sample);
psContext.vZ = state.pfnQuantizeDepth(psContext.vZ);
AR_END(BEBarycentric, 0);
// interpolate user clip distance if available
if (state.backendState.clipDistanceMask)
{
coverageMask &= ~ComputeUserClipMask(state.backendState.clipDistanceMask, work.pUserClipBuffer, psContext.vI.sample, psContext.vJ.sample);
}
simdscalar vCoverageMask = _simd_vmask_ps(coverageMask);
simdscalar stencilPassMask = vCoverageMask;
AR_BEGIN(BEEarlyDepthTest, pDC->drawId);
simdscalar depthPassMask = DepthStencilTest(&state, work.triFlags.frontFacing, work.triFlags.viewportIndex,
psContext.vZ, pDepthSample, vCoverageMask, pStencilSample, &stencilPassMask);
AR_EVENT(EarlyDepthStencilInfoNullPS(_simd_movemask_ps(depthPassMask), _simd_movemask_ps(stencilPassMask), _simd_movemask_ps(vCoverageMask)));
DepthStencilWrite(&state.vp[work.triFlags.viewportIndex], &state.depthStencilState, work.triFlags.frontFacing, psContext.vZ,
pDepthSample, depthPassMask, vCoverageMask, pStencilSample, stencilPassMask);
AR_END(BEEarlyDepthTest, 0);
uint32_t statMask = _simd_movemask_ps(depthPassMask);
uint32_t statCount = _mm_popcnt_u32(statMask);
UPDATE_STAT_BE(DepthPassCount, statCount);
}
Endtile:
ATTR_UNUSED;
work.coverageMask[sample] >>= (SIMD_TILE_Y_DIM * SIMD_TILE_X_DIM);
}
pDepthBuffer += (KNOB_SIMD_WIDTH * FormatTraits<KNOB_DEPTH_HOT_TILE_FORMAT>::bpp) / 8;
pStencilBuffer += (KNOB_SIMD_WIDTH * FormatTraits<KNOB_STENCIL_HOT_TILE_FORMAT>::bpp) / 8;
vXSamplePosUL = _simd_add_ps(vXSamplePosUL, dx);
}
vYSamplePosUL = _simd_add_ps(vYSamplePosUL, dy);
}
AR_END(BENullBackend, 0);
}
void BackendSampleRate(DRAW_CONTEXT *pDC, uint32_t workerId, uint32_t x, uint32_t y, SWR_TRIANGLE_DESC &work, RenderOutputBuffers &renderBuffers)
{
SWR_CONTEXT *pContext = pDC->pContext;
AR_BEGIN(BESampleRateBackend, pDC->drawId);
AR_BEGIN(BESetup, pDC->drawId);
const API_STATE &state = GetApiState(pDC);
BarycentricCoeffs coeffs;
SetupBarycentricCoeffs(&coeffs, work);
SWR_PS_CONTEXT psContext;
const SWR_MULTISAMPLE_POS& samplePos = state.rastState.samplePositions;
SetupPixelShaderContext<T>(&psContext, samplePos, work);
uint8_t *pDepthBuffer, *pStencilBuffer;
SetupRenderBuffers(psContext.pColorBuffer, &pDepthBuffer, &pStencilBuffer, state.colorHottileEnable, renderBuffers);
AR_END(BESetup, 0);
psContext.vY.UL = _simd_add_ps(vULOffsetsY, _simd_set1_ps(static_cast<float>(y)));
psContext.vY.center = _simd_add_ps(vCenterOffsetsY, _simd_set1_ps(static_cast<float>(y)));
const simdscalar dy = _simd_set1_ps(static_cast<float>(SIMD_TILE_Y_DIM));
for (uint32_t yy = y; yy < y + KNOB_TILE_Y_DIM; yy += SIMD_TILE_Y_DIM)
{
psContext.vX.UL = _simd_add_ps(vULOffsetsX, _simd_set1_ps(static_cast<float>(x)));
psContext.vX.center = _simd_add_ps(vCenterOffsetsX, _simd_set1_ps(static_cast<float>(x)));
const simdscalar dx = _simd_set1_ps(static_cast<float>(SIMD_TILE_X_DIM));
for (uint32_t xx = x; xx < x + KNOB_TILE_X_DIM; xx += SIMD_TILE_X_DIM)
{
#if USE_8x2_TILE_BACKEND
const bool useAlternateOffset = ((xx & SIMD_TILE_X_DIM) != 0);
#endif
if (T::InputCoverage != SWR_INPUT_COVERAGE_NONE)
{
const uint64_t* pCoverageMask = (T::InputCoverage == SWR_INPUT_COVERAGE_INNER_CONSERVATIVE) ? &work.innerCoverageMask : &work.coverageMask[0];
generateInputCoverage<T, T::InputCoverage>(pCoverageMask, psContext.inputMask, state.blendState.sampleMask);
}
AR_BEGIN(BEBarycentric, pDC->drawId);
CalcPixelBarycentrics(coeffs, psContext);
CalcCentroid<T, false>(&psContext, samplePos, coeffs, work.coverageMask, state.blendState.sampleMask);
AR_END(BEBarycentric, 0);
for (uint32_t sample = 0; sample < T::MultisampleT::numSamples; sample++)
{
simdmask coverageMask = work.coverageMask[sample] & MASK;
if (coverageMask)
{
// offset depth/stencil buffers current sample
uint8_t *pDepthSample = pDepthBuffer + RasterTileDepthOffset(sample);
uint8_t *pStencilSample = pStencilBuffer + RasterTileStencilOffset(sample);
if (state.depthHottileEnable && state.depthBoundsState.depthBoundsTestEnable)
{
static_assert(KNOB_DEPTH_HOT_TILE_FORMAT == R32_FLOAT, "Unsupported depth hot tile format");
const simdscalar z = _simd_load_ps(reinterpret_cast<const float *>(pDepthSample));
const float minz = state.depthBoundsState.depthBoundsTestMinValue;
const float maxz = state.depthBoundsState.depthBoundsTestMaxValue;
coverageMask &= CalcDepthBoundsAcceptMask(z, minz, maxz);
}
AR_BEGIN(BEBarycentric, pDC->drawId);
// calculate per sample positions
psContext.vX.sample = _simd_add_ps(psContext.vX.UL, samplePos.vX(sample));
psContext.vY.sample = _simd_add_ps(psContext.vY.UL, samplePos.vY(sample));
CalcSampleBarycentrics(coeffs, psContext);
// interpolate and quantize z
psContext.vZ = vplaneps(coeffs.vZa, coeffs.vZb, coeffs.vZc, psContext.vI.sample, psContext.vJ.sample);
psContext.vZ = state.pfnQuantizeDepth(psContext.vZ);
AR_END(BEBarycentric, 0);
// interpolate user clip distance if available
if (state.backendState.clipDistanceMask)
{
coverageMask &= ~ComputeUserClipMask(state.backendState.clipDistanceMask, work.pUserClipBuffer, psContext.vI.sample, psContext.vJ.sample);
}
simdscalar vCoverageMask = _simd_vmask_ps(coverageMask);
simdscalar depthPassMask = vCoverageMask;
simdscalar stencilPassMask = vCoverageMask;
// Early-Z?
if (T::bCanEarlyZ)
{
AR_BEGIN(BEEarlyDepthTest, pDC->drawId);
depthPassMask = DepthStencilTest(&state, work.triFlags.frontFacing, work.triFlags.viewportIndex,
psContext.vZ, pDepthSample, vCoverageMask, pStencilSample, &stencilPassMask);
AR_EVENT(EarlyDepthStencilInfoSampleRate(_simd_movemask_ps(depthPassMask), _simd_movemask_ps(stencilPassMask), _simd_movemask_ps(vCoverageMask)));
AR_END(BEEarlyDepthTest, 0);
// early-exit if no samples passed depth or earlyZ is forced on.
if (state.psState.forceEarlyZ || !_simd_movemask_ps(depthPassMask))
{
DepthStencilWrite(&state.vp[work.triFlags.viewportIndex], &state.depthStencilState, work.triFlags.frontFacing, psContext.vZ,
pDepthSample, depthPassMask, vCoverageMask, pStencilSample, stencilPassMask);
if (!_simd_movemask_ps(depthPassMask))
{
work.coverageMask[sample] >>= (SIMD_TILE_Y_DIM * SIMD_TILE_X_DIM);
continue;
}
}
}
psContext.sampleIndex = sample;
psContext.activeMask = _simd_castps_si(vCoverageMask);
// execute pixel shader
AR_BEGIN(BEPixelShader, pDC->drawId);
UPDATE_STAT_BE(PsInvocations, _mm_popcnt_u32(_simd_movemask_ps(vCoverageMask)));
state.psState.pfnPixelShader(GetPrivateState(pDC), &psContext);
AR_END(BEPixelShader, 0);
vCoverageMask = _simd_castsi_ps(psContext.activeMask);
// late-Z
if (!T::bCanEarlyZ)
{
AR_BEGIN(BELateDepthTest, pDC->drawId);
depthPassMask = DepthStencilTest(&state, work.triFlags.frontFacing, work.triFlags.viewportIndex,
psContext.vZ, pDepthSample, vCoverageMask, pStencilSample, &stencilPassMask);
AR_EVENT(LateDepthStencilInfoSampleRate(_simd_movemask_ps(depthPassMask), _simd_movemask_ps(stencilPassMask), _simd_movemask_ps(vCoverageMask)));
AR_END(BELateDepthTest, 0);
if (!_simd_movemask_ps(depthPassMask))
{
// need to call depth/stencil write for stencil write
DepthStencilWrite(&state.vp[work.triFlags.viewportIndex], &state.depthStencilState, work.triFlags.frontFacing, psContext.vZ,
pDepthSample, depthPassMask, vCoverageMask, pStencilSample, stencilPassMask);
work.coverageMask[sample] >>= (SIMD_TILE_Y_DIM * SIMD_TILE_X_DIM);
continue;
}
}
uint32_t statMask = _simd_movemask_ps(depthPassMask);
uint32_t statCount = _mm_popcnt_u32(statMask);
UPDATE_STAT_BE(DepthPassCount, statCount);
// output merger
AR_BEGIN(BEOutputMerger, pDC->drawId);
#if USE_8x2_TILE_BACKEND
OutputMerger8x2(psContext, psContext.pColorBuffer, sample, &state.blendState, state.pfnBlendFunc, vCoverageMask, depthPassMask, state.psState.renderTargetMask, useAlternateOffset);
#else
OutputMerger4x2(psContext, psContext.pColorBuffer, sample, &state.blendState, state.pfnBlendFunc, vCoverageMask, depthPassMask, state.psState.renderTargetMask);
#endif
// do final depth write after all pixel kills
if (!state.psState.forceEarlyZ)
{
DepthStencilWrite(&state.vp[work.triFlags.viewportIndex], &state.depthStencilState, work.triFlags.frontFacing, psContext.vZ,
pDepthSample, depthPassMask, vCoverageMask, pStencilSample, stencilPassMask);
}
AR_END(BEOutputMerger, 0);
}
