/**************************************************************************** * Copyright (C) 2014-2018 Intel Corporation. All Rights Reserved. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice (including the next * paragraph) shall be included in all copies or substantial portions of the * Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS * IN THE SOFTWARE. * * @file backend.h * * @brief Backend handles rasterization, pixel shading and output merger * operations. * ******************************************************************************/ #pragma once void InitBackendSingleFuncTable(PFN_BACKEND_FUNC (&table)[SWR_INPUT_COVERAGE_COUNT][2][2]); void InitBackendSampleFuncTable( PFN_BACKEND_FUNC (&table)[SWR_MULTISAMPLE_TYPE_COUNT][SWR_INPUT_COVERAGE_COUNT][2][2]); static INLINE void CalcSampleBarycentrics(const BarycentricCoeffs& coeffs, SWR_PS_CONTEXT& psContext); enum SWR_BACKEND_FUNCS { SWR_BACKEND_SINGLE_SAMPLE, SWR_BACKEND_MSAA_PIXEL_RATE, SWR_BACKEND_MSAA_SAMPLE_RATE, SWR_BACKEND_FUNCS_MAX, }; #if KNOB_SIMD_WIDTH == 8 static const __m256 vCenterOffsetsX = __m256{0.5, 1.5, 0.5, 1.5, 2.5, 3.5, 2.5, 3.5}; static const __m256 vCenterOffsetsY = __m256{0.5, 0.5, 1.5, 1.5, 0.5, 0.5, 1.5, 1.5}; static const __m256 vULOffsetsX = __m256{0.0, 1.0, 0.0, 1.0, 2.0, 3.0, 2.0, 3.0}; static const __m256 vULOffsetsY = __m256{0.0, 0.0, 1.0, 1.0, 0.0, 0.0, 1.0, 1.0}; #define MASK 0xff #endif static INLINE simdmask ComputeUserClipMask(uint8_t clipMask, float* pUserClipBuffer, simdscalar const& vI, simdscalar const& vJ) { simdscalar vClipMask = _simd_setzero_ps(); uint32_t numClipDistance = _mm_popcnt_u32(clipMask); for (uint32_t i = 0; i < numClipDistance; ++i) { // pull triangle clip distance values from clip buffer simdscalar vA = _simd_broadcast_ss(pUserClipBuffer++); simdscalar vB = _simd_broadcast_ss(pUserClipBuffer++); simdscalar vC = _simd_broadcast_ss(pUserClipBuffer++); // interpolate simdscalar vInterp = vplaneps(vA, vB, vC, vI, vJ); // clip if interpolated clip distance is < 0 || NAN simdscalar vCull = _simd_cmp_ps(_simd_setzero_ps(), vInterp, _CMP_NLE_UQ); vClipMask = _simd_or_ps(vClipMask, vCull); } return _simd_movemask_ps(vClipMask); } INLINE static uint32_t RasterTileColorOffset(uint32_t sampleNum) { static const uint32_t RasterTileColorOffsets[16]{ 0, (KNOB_TILE_X_DIM * KNOB_TILE_Y_DIM * FormatTraits::bpp / 8), (KNOB_TILE_X_DIM * KNOB_TILE_Y_DIM * FormatTraits::bpp / 8) * 2, (KNOB_TILE_X_DIM * KNOB_TILE_Y_DIM * FormatTraits::bpp / 8) * 3, (KNOB_TILE_X_DIM * KNOB_TILE_Y_DIM * FormatTraits::bpp / 8) * 4, (KNOB_TILE_X_DIM * KNOB_TILE_Y_DIM * FormatTraits::bpp / 8) * 5, (KNOB_TILE_X_DIM * KNOB_TILE_Y_DIM * FormatTraits::bpp / 8) * 6, (KNOB_TILE_X_DIM * KNOB_TILE_Y_DIM * FormatTraits::bpp / 8) * 7, (KNOB_TILE_X_DIM * KNOB_TILE_Y_DIM * FormatTraits::bpp / 8) * 8, (KNOB_TILE_X_DIM * KNOB_TILE_Y_DIM * FormatTraits::bpp / 8) * 9, (KNOB_TILE_X_DIM * KNOB_TILE_Y_DIM * FormatTraits::bpp / 8) * 10, (KNOB_TILE_X_DIM * KNOB_TILE_Y_DIM * FormatTraits::bpp / 8) * 11, (KNOB_TILE_X_DIM * KNOB_TILE_Y_DIM * FormatTraits::bpp / 8) * 12, (KNOB_TILE_X_DIM * KNOB_TILE_Y_DIM * FormatTraits::bpp / 8) * 13, (KNOB_TILE_X_DIM * KNOB_TILE_Y_DIM * FormatTraits::bpp / 8) * 14, (KNOB_TILE_X_DIM * KNOB_TILE_Y_DIM * FormatTraits::bpp / 8) * 15, }; assert(sampleNum < 16); return RasterTileColorOffsets[sampleNum]; } INLINE static uint32_t RasterTileDepthOffset(uint32_t sampleNum) { static const uint32_t RasterTileDepthOffsets[16]{ 0, (KNOB_TILE_X_DIM * KNOB_TILE_Y_DIM * FormatTraits::bpp / 8), (KNOB_TILE_X_DIM * KNOB_TILE_Y_DIM * FormatTraits::bpp / 8) * 2, (KNOB_TILE_X_DIM * KNOB_TILE_Y_DIM * FormatTraits::bpp / 8) * 3, (KNOB_TILE_X_DIM * KNOB_TILE_Y_DIM * FormatTraits::bpp / 8) * 4, (KNOB_TILE_X_DIM * KNOB_TILE_Y_DIM * FormatTraits::bpp / 8) * 5, (KNOB_TILE_X_DIM * KNOB_TILE_Y_DIM * FormatTraits::bpp / 8) * 6, (KNOB_TILE_X_DIM * KNOB_TILE_Y_DIM * FormatTraits::bpp / 8) * 7, (KNOB_TILE_X_DIM * KNOB_TILE_Y_DIM * FormatTraits::bpp / 8) * 8, (KNOB_TILE_X_DIM * KNOB_TILE_Y_DIM * FormatTraits::bpp / 8) * 9, (KNOB_TILE_X_DIM * KNOB_TILE_Y_DIM * FormatTraits::bpp / 8) * 10, (KNOB_TILE_X_DIM * KNOB_TILE_Y_DIM * FormatTraits::bpp / 8) * 11, (KNOB_TILE_X_DIM * KNOB_TILE_Y_DIM * FormatTraits::bpp / 8) * 12, (KNOB_TILE_X_DIM * KNOB_TILE_Y_DIM * FormatTraits::bpp / 8) * 13, (KNOB_TILE_X_DIM * KNOB_TILE_Y_DIM * FormatTraits::bpp / 8) * 14, (KNOB_TILE_X_DIM * KNOB_TILE_Y_DIM * FormatTraits::bpp / 8) * 15, }; assert(sampleNum < 16); return RasterTileDepthOffsets[sampleNum]; } INLINE static uint32_t RasterTileStencilOffset(uint32_t sampleNum) { static const uint32_t RasterTileStencilOffsets[16]{ 0, (KNOB_TILE_X_DIM * KNOB_TILE_Y_DIM * FormatTraits::bpp / 8), (KNOB_TILE_X_DIM * KNOB_TILE_Y_DIM * FormatTraits::bpp / 8) * 2, (KNOB_TILE_X_DIM * KNOB_TILE_Y_DIM * FormatTraits::bpp / 8) * 3, (KNOB_TILE_X_DIM * KNOB_TILE_Y_DIM * FormatTraits::bpp / 8) * 4, (KNOB_TILE_X_DIM * KNOB_TILE_Y_DIM * FormatTraits::bpp / 8) * 5, (KNOB_TILE_X_DIM * KNOB_TILE_Y_DIM * FormatTraits::bpp / 8) * 6, (KNOB_TILE_X_DIM * KNOB_TILE_Y_DIM * FormatTraits::bpp / 8) * 7, (KNOB_TILE_X_DIM * KNOB_TILE_Y_DIM * FormatTraits::bpp / 8) * 8, (KNOB_TILE_X_DIM * KNOB_TILE_Y_DIM * FormatTraits::bpp / 8) * 9, (KNOB_TILE_X_DIM * KNOB_TILE_Y_DIM * FormatTraits::bpp / 8) * 10, (KNOB_TILE_X_DIM * KNOB_TILE_Y_DIM * FormatTraits::bpp / 8) * 11, (KNOB_TILE_X_DIM * KNOB_TILE_Y_DIM * FormatTraits::bpp / 8) * 12, (KNOB_TILE_X_DIM * KNOB_TILE_Y_DIM * FormatTraits::bpp / 8) * 13, (KNOB_TILE_X_DIM * KNOB_TILE_Y_DIM * FormatTraits::bpp / 8) * 14, (KNOB_TILE_X_DIM * KNOB_TILE_Y_DIM * FormatTraits::bpp / 8) * 15, }; assert(sampleNum < 16); return RasterTileStencilOffsets[sampleNum]; } template struct generateInputCoverage { INLINE generateInputCoverage(const uint64_t* const coverageMask, uint32_t (&inputMask)[KNOB_SIMD_WIDTH], const uint32_t sampleMask) { // will need to update for avx512 assert(KNOB_SIMD_WIDTH == 8); simdscalari mask[2]; simdscalari sampleCoverage[2]; if (T::bIsCenterPattern) { // center coverage is the same for all samples; just broadcast to the sample slots uint32_t centerCoverage = ((uint32_t)(*coverageMask) & MASK); if (T::MultisampleT::numSamples == 1) { sampleCoverage[0] = _simd_set_epi32(0, 0, 0, 0, 0, 0, 0, centerCoverage); } else if (T::MultisampleT::numSamples == 2) { sampleCoverage[0] = _simd_set_epi32(0, 0, 0, 0, 0, 0, centerCoverage, centerCoverage); } else if (T::MultisampleT::numSamples == 4) { sampleCoverage[0] = _simd_set_epi32( 0, 0, 0, 0, centerCoverage, centerCoverage, centerCoverage, centerCoverage); } else if (T::MultisampleT::numSamples == 8) { sampleCoverage[0] = _simd_set1_epi32(centerCoverage); } else if (T::MultisampleT::numSamples == 16) { sampleCoverage[0] = _simd_set1_epi32(centerCoverage); sampleCoverage[1] = _simd_set1_epi32(centerCoverage); } } else { simdscalari src = _simd_set1_epi32(0); simdscalari index0 = _simd_set_epi32(7, 6, 5, 4, 3, 2, 1, 0), index1; if (T::MultisampleT::numSamples == 1) { mask[0] = _simd_set_epi32(0, 0, 0, 0, 0, 0, 0, -1); } else if (T::MultisampleT::numSamples == 2) { mask[0] = _simd_set_epi32(0, 0, 0, 0, 0, 0, -1, -1); } else if (T::MultisampleT::numSamples == 4) { mask[0] = _simd_set_epi32(0, 0, 0, 0, -1, -1, -1, -1); } else if (T::MultisampleT::numSamples == 8) { mask[0] = _simd_set1_epi32(-1); } else if (T::MultisampleT::numSamples == 16) { mask[0] = _simd_set1_epi32(-1); mask[1] = _simd_set1_epi32(-1); index1 = _simd_set_epi32(15, 14, 13, 12, 11, 10, 9, 8); } // gather coverage for samples 0-7 sampleCoverage[0] = _mm256_castps_si256(_simd_mask_i32gather_ps(_mm256_castsi256_ps(src), (const float*)coverageMask, index0, _mm256_castsi256_ps(mask[0]), 8)); if (T::MultisampleT::numSamples > 8) { // gather coverage for samples 8-15 sampleCoverage[1] = _mm256_castps_si256(_simd_mask_i32gather_ps(_mm256_castsi256_ps(src), (const float*)coverageMask, index1, _mm256_castsi256_ps(mask[1]), 8)); } } mask[0] = _mm256_set_epi8(-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0xC, 0x8, 0x4, 0x0, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0xC, 0x8, 0x4, 0x0); // pull out the 8bit 4x2 coverage for samples 0-7 into the lower 32 bits of each 128bit lane simdscalari packedCoverage0 = _simd_shuffle_epi8(sampleCoverage[0], mask[0]); simdscalari packedCoverage1; if (T::MultisampleT::numSamples > 8) { // pull out the 8bit 4x2 coverage for samples 8-15 into the lower 32 bits of each 128bit // lane packedCoverage1 = _simd_shuffle_epi8(sampleCoverage[1], mask[0]); } #if (KNOB_ARCH == KNOB_ARCH_AVX) // pack lower 32 bits of each 128 bit lane into lower 64 bits of single 128 bit lane simdscalari hiToLow = _mm256_permute2f128_si256(packedCoverage0, packedCoverage0, 0x83); simdscalar shufRes = _mm256_shuffle_ps( _mm256_castsi256_ps(hiToLow), _mm256_castsi256_ps(hiToLow), _MM_SHUFFLE(1, 1, 0, 1)); packedCoverage0 = _mm256_castps_si256( _mm256_blend_ps(_mm256_castsi256_ps(packedCoverage0), shufRes, 0xFE)); simdscalari packedSampleCoverage; if (T::MultisampleT::numSamples > 8) { // pack lower 32 bits of each 128 bit lane into upper 64 bits of single 128 bit lane hiToLow = _mm256_permute2f128_si256(packedCoverage1, packedCoverage1, 0x83); shufRes = _mm256_shuffle_ps(_mm256_castsi256_ps(hiToLow), _mm256_castsi256_ps(hiToLow), _MM_SHUFFLE(1, 1, 0, 1)); shufRes = _mm256_blend_ps(_mm256_castsi256_ps(packedCoverage1), shufRes, 0xFE); packedCoverage1 = _mm256_castps_si256(_mm256_castpd_ps( _mm256_shuffle_pd(_mm256_castps_pd(shufRes), _mm256_castps_pd(shufRes), 0x01))); packedSampleCoverage = _mm256_castps_si256(_mm256_blend_ps( _mm256_castsi256_ps(packedCoverage0), _mm256_castsi256_ps(packedCoverage1), 0xFC)); } else { packedSampleCoverage = packedCoverage0; } #else simdscalari permMask = _simd_set_epi32(0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0x4, 0x0); // pack lower 32 bits of each 128 bit lane into lower 64 bits of single 128 bit lane packedCoverage0 = _mm256_permutevar8x32_epi32(packedCoverage0, permMask); simdscalari packedSampleCoverage; if (T::MultisampleT::numSamples > 8) { permMask = _simd_set_epi32(0x7, 0x7, 0x7, 0x7, 0x4, 0x0, 0x7, 0x7); // pack lower 32 bits of each 128 bit lane into upper 64 bits of single 128 bit lane packedCoverage1 = _mm256_permutevar8x32_epi32(packedCoverage1, permMask); // blend coverage masks for samples 0-7 and samples 8-15 into single 128 bit lane packedSampleCoverage = _mm256_blend_epi32(packedCoverage0, packedCoverage1, 0x0C); } else { packedSampleCoverage = packedCoverage0; } #endif for (int32_t i = KNOB_SIMD_WIDTH - 1; i >= 0; i--) { // convert packed sample coverage masks into single coverage masks for all samples for // each pixel in the 4x2 inputMask[i] = _simd_movemask_epi8(packedSampleCoverage); if (!T::bForcedSampleCount) { // input coverage has to be anded with sample mask if MSAA isn't forced on inputMask[i] &= sampleMask; } // shift to the next pixel in the 4x2 packedSampleCoverage = _simd_slli_epi32(packedSampleCoverage, 1); } } INLINE generateInputCoverage(const uint64_t* const coverageMask, simdscalar& inputCoverage, const uint32_t sampleMask) { uint32_t inputMask[KNOB_SIMD_WIDTH]; generateInputCoverage(coverageMask, inputMask, sampleMask); inputCoverage = _simd_castsi_ps(_simd_set_epi32(inputMask[7], inputMask[6], inputMask[5], inputMask[4], inputMask[3], inputMask[2], inputMask[1], inputMask[0])); } }; template struct generateInputCoverage { INLINE generateInputCoverage(const uint64_t* const coverageMask, simdscalar& inputCoverage, const uint32_t sampleMask) { // will need to update for avx512 assert(KNOB_SIMD_WIDTH == 8); simdscalari vec = _simd_set1_epi32(coverageMask[0]); const simdscalari bit = _simd_set_epi32(0x80, 0x40, 0x20, 0x10, 0x08, 0x04, 0x02, 0x01); vec = _simd_and_si(vec, bit); vec = _simd_cmplt_epi32(_simd_setzero_si(), vec); vec = _simd_blendv_epi32(_simd_setzero_si(), _simd_set1_epi32(1), vec); inputCoverage = _simd_castsi_ps(vec); } INLINE generateInputCoverage(const uint64_t* const coverageMask, uint32_t (&inputMask)[KNOB_SIMD_WIDTH], const uint32_t sampleMask) { uint32_t simdCoverage = (coverageMask[0] & MASK); static const uint32_t FullCoverageMask = (1 << T::MultisampleT::numSamples) - 1; for (int i = 0; i < KNOB_SIMD_WIDTH; i++) { // set all samples to covered if conservative coverage mask is set for that pixel inputMask[i] = (((1 << i) & simdCoverage) > 0) ? FullCoverageMask : 0; } } }; //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// // Centroid behaves exactly as follows : // (1) If all samples in the primitive are covered, the attribute is evaluated at the pixel center // (even if the sample pattern does not happen to // have a sample location there). // (2) Else the attribute is evaluated at the first covered sample, in increasing order of sample // index, where sample coverage is after ANDing the // coverage with the SampleMask Rasterizer State. // (3) If no samples are covered, such as on helper pixels executed off the bounds of a primitive to // fill out 2x2 pixel stamps, the attribute is // evaluated as follows : If the SampleMask Rasterizer state is a subset of the samples in the // pixel, then the first sample covered by the SampleMask Rasterizer State is the evaluation // point.Otherwise (full SampleMask), the pixel center is the evaluation point. //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// template INLINE void CalcCentroidPos(SWR_PS_CONTEXT& psContext, const SWR_MULTISAMPLE_POS& samplePos, const uint64_t* const coverageMask, const uint32_t sampleMask, simdscalar const& vXSamplePosUL, simdscalar const& vYSamplePosUL) { uint32_t inputMask[KNOB_SIMD_WIDTH]; generateInputCoverage(coverageMask, inputMask, sampleMask); // Case (2) - partially covered pixel // scan for first covered sample per pixel in the 4x2 span unsigned long sampleNum[KNOB_SIMD_WIDTH]; (inputMask[0] > 0) ? (_BitScanForward(&sampleNum[0], inputMask[0])) : (sampleNum[0] = 0); (inputMask[1] > 0) ? (_BitScanForward(&sampleNum[1], inputMask[1])) : (sampleNum[1] = 0); (inputMask[2] > 0) ? (_BitScanForward(&sampleNum[2], inputMask[2])) : (sampleNum[2] = 0); (inputMask[3] > 0) ? (_BitScanForward(&sampleNum[3], inputMask[3])) : (sampleNum[3] = 0); (inputMask[4] > 0) ? (_BitScanForward(&sampleNum[4], inputMask[4])) : (sampleNum[4] = 0); (inputMask[5] > 0) ? (_BitScanForward(&sampleNum[5], inputMask[5])) : (sampleNum[5] = 0); (inputMask[6] > 0) ? (_BitScanForward(&sampleNum[6], inputMask[6])) : (sampleNum[6] = 0); (inputMask[7] > 0) ? (_BitScanForward(&sampleNum[7], inputMask[7])) : (sampleNum[7] = 0); // look up and set the sample offsets from UL pixel corner for first covered sample simdscalar vXSample = _simd_set_ps(samplePos.X(sampleNum[7]), samplePos.X(sampleNum[6]), samplePos.X(sampleNum[5]), samplePos.X(sampleNum[4]), samplePos.X(sampleNum[3]), samplePos.X(sampleNum[2]), samplePos.X(sampleNum[1]), samplePos.X(sampleNum[0])); simdscalar vYSample = _simd_set_ps(samplePos.Y(sampleNum[7]), samplePos.Y(sampleNum[6]), samplePos.Y(sampleNum[5]), samplePos.Y(sampleNum[4]), samplePos.Y(sampleNum[3]), samplePos.Y(sampleNum[2]), samplePos.Y(sampleNum[1]), samplePos.Y(sampleNum[0])); // add sample offset to UL pixel corner vXSample = _simd_add_ps(vXSamplePosUL, vXSample); vYSample = _simd_add_ps(vYSamplePosUL, vYSample); // Case (1) and case (3b) - All samples covered or not covered with full SampleMask static const simdscalari vFullyCoveredMask = T::MultisampleT::FullSampleMask(); simdscalari vInputCoveragei = _simd_set_epi32(inputMask[7], inputMask[6], inputMask[5], inputMask[4], inputMask[3], inputMask[2], inputMask[1], inputMask[0]); simdscalari vAllSamplesCovered = _simd_cmpeq_epi32(vInputCoveragei, vFullyCoveredMask); static const simdscalari vZero = _simd_setzero_si(); const simdscalari vSampleMask = _simd_and_si(_simd_set1_epi32(sampleMask), vFullyCoveredMask); simdscalari vNoSamplesCovered = _simd_cmpeq_epi32(vInputCoveragei, vZero); simdscalari vIsFullSampleMask = _simd_cmpeq_epi32(vSampleMask, vFullyCoveredMask); simdscalari vCase3b = _simd_and_si(vNoSamplesCovered, vIsFullSampleMask); simdscalari vEvalAtCenter = _simd_or_si(vAllSamplesCovered, vCase3b); // set the centroid position based on results from above psContext.vX.centroid = _simd_blendv_ps(vXSample, psContext.vX.center, _simd_castsi_ps(vEvalAtCenter)); psContext.vY.centroid = _simd_blendv_ps(vYSample, psContext.vY.center, _simd_castsi_ps(vEvalAtCenter)); // Case (3a) No samples covered and partial sample mask simdscalari vSomeSampleMaskSamples = _simd_cmplt_epi32(vSampleMask, vFullyCoveredMask); // sample mask should never be all 0's for this case, but handle it anyways unsigned long firstCoveredSampleMaskSample = 0; (sampleMask > 0) ? (_BitScanForward(&firstCoveredSampleMaskSample, sampleMask)) : (firstCoveredSampleMaskSample = 0); simdscalari vCase3a = _simd_and_si(vNoSamplesCovered, vSomeSampleMaskSamples); vXSample = _simd_set1_ps(samplePos.X(firstCoveredSampleMaskSample)); vYSample = _simd_set1_ps(samplePos.Y(firstCoveredSampleMaskSample)); // blend in case 3a pixel locations psContext.vX.centroid = _simd_blendv_ps(psContext.vX.centroid, vXSample, _simd_castsi_ps(vCase3a)); psContext.vY.centroid = _simd_blendv_ps(psContext.vY.centroid, vYSample, _simd_castsi_ps(vCase3a)); } INLINE void CalcCentroidBarycentrics(const BarycentricCoeffs& coeffs, SWR_PS_CONTEXT& psContext, const simdscalar& vXSamplePosUL, const simdscalar& vYSamplePosUL) { // evaluate I,J psContext.vI.centroid = vplaneps(coeffs.vIa, coeffs.vIb, coeffs.vIc, psContext.vX.centroid, psContext.vY.centroid); psContext.vJ.centroid = vplaneps(coeffs.vJa, coeffs.vJb, coeffs.vJc, psContext.vX.centroid, psContext.vY.centroid); psContext.vI.centroid = _simd_mul_ps(psContext.vI.centroid, coeffs.vRecipDet); psContext.vJ.centroid = _simd_mul_ps(psContext.vJ.centroid, coeffs.vRecipDet); // interpolate 1/w psContext.vOneOverW.centroid = vplaneps(coeffs.vAOneOverW, coeffs.vBOneOverW, coeffs.vCOneOverW, psContext.vI.centroid, psContext.vJ.centroid); } INLINE simdmask CalcDepthBoundsAcceptMask(simdscalar const& z, float minz, float maxz) { const simdscalar minzMask = _simd_cmpge_ps(z, _simd_set1_ps(minz)); const simdscalar maxzMask = _simd_cmple_ps(z, _simd_set1_ps(maxz)); return _simd_movemask_ps(_simd_and_ps(minzMask, maxzMask)); } template INLINE uint32_t GetNumOMSamples(SWR_MULTISAMPLE_COUNT blendSampleCount) { // RT has to be single sample if we're in forcedMSAA mode if (T::bForcedSampleCount && (T::MultisampleT::sampleCount > SWR_MULTISAMPLE_1X)) { return 1; } // unless we're forced to single sample, in which case we run the OM at the sample count of the // RT else if (T::bForcedSampleCount && (T::MultisampleT::sampleCount == SWR_MULTISAMPLE_1X)) { return GetNumSamples(blendSampleCount); } // else we're in normal MSAA mode and rasterizer and OM are running at the same sample count else { return T::MultisampleT::numSamples; } } inline void SetupBarycentricCoeffs(BarycentricCoeffs* coeffs, const SWR_TRIANGLE_DESC& work) { // broadcast scalars coeffs->vIa = _simd_broadcast_ss(&work.I[0]); coeffs->vIb = _simd_broadcast_ss(&work.I[1]); coeffs->vIc = _simd_broadcast_ss(&work.I[2]); coeffs->vJa = _simd_broadcast_ss(&work.J[0]); coeffs->vJb = _simd_broadcast_ss(&work.J[1]); coeffs->vJc = _simd_broadcast_ss(&work.J[2]); coeffs->vZa = _simd_broadcast_ss(&work.Z[0]); coeffs->vZb = _simd_broadcast_ss(&work.Z[1]); coeffs->vZc = _simd_broadcast_ss(&work.Z[2]); coeffs->vRecipDet = _simd_broadcast_ss(&work.recipDet); coeffs->vAOneOverW = _simd_broadcast_ss(&work.OneOverW[0]); coeffs->vBOneOverW = _simd_broadcast_ss(&work.OneOverW[1]); coeffs->vCOneOverW = _simd_broadcast_ss(&work.OneOverW[2]); } inline void SetupRenderBuffers(uint8_t* pColorBuffer[SWR_NUM_RENDERTARGETS], uint8_t** pDepthBuffer, uint8_t** pStencilBuffer, uint32_t colorHotTileMask, RenderOutputBuffers& renderBuffers) { DWORD index; while (_BitScanForward(&index, colorHotTileMask)) { assert(index < SWR_NUM_RENDERTARGETS); colorHotTileMask &= ~(1 << index); pColorBuffer[index] = renderBuffers.pColor[index]; } if (pDepthBuffer) { *pDepthBuffer = renderBuffers.pDepth; } if (pStencilBuffer) { *pStencilBuffer = renderBuffers.pStencil; ; } } template void SetupPixelShaderContext(SWR_PS_CONTEXT* psContext, const SWR_MULTISAMPLE_POS& samplePos, SWR_TRIANGLE_DESC& work) { psContext->pAttribs = work.pAttribs; psContext->pPerspAttribs = work.pPerspAttribs; psContext->frontFace = work.triFlags.frontFacing; psContext->renderTargetArrayIndex = work.triFlags.renderTargetArrayIndex; // save Ia/Ib/Ic and Ja/Jb/Jc if we need to reevaluate i/j/k in the shader because of pull // attribs psContext->I = work.I; psContext->J = work.J; psContext->recipDet = work.recipDet; psContext->pRecipW = work.pRecipW; psContext->pSamplePosX = samplePos.X(); // reinterpret_cast(&T::MultisampleT::samplePosX); psContext->pSamplePosY = samplePos.Y(); // reinterpret_cast(&T::MultisampleT::samplePosY); psContext->rasterizerSampleCount = T::MultisampleT::numSamples; psContext->sampleIndex = 0; } template void CalcCentroid(SWR_PS_CONTEXT* psContext, const SWR_MULTISAMPLE_POS& samplePos, const BarycentricCoeffs& coeffs, const uint64_t* const coverageMask, uint32_t sampleMask) { if (IsSingleSample) // if (T::MultisampleT::numSamples == 1) // doesn't cut it, the centroid // positions are still different { // for 1x case, centroid is pixel center psContext->vX.centroid = psContext->vX.center; psContext->vY.centroid = psContext->vY.center; psContext->vI.centroid = psContext->vI.center; psContext->vJ.centroid = psContext->vJ.center; psContext->vOneOverW.centroid = psContext->vOneOverW.center; } else { if (T::bCentroidPos) { ///@ todo: don't need to genererate input coverage 2x if input coverage and centroid if (T::bIsCenterPattern) { psContext->vX.centroid = _simd_add_ps(psContext->vX.UL, _simd_set1_ps(0.5f)); psContext->vY.centroid = _simd_add_ps(psContext->vY.UL, _simd_set1_ps(0.5f)); } else { // add param: const uint32_t inputMask[KNOB_SIMD_WIDTH] to eliminate 'generate // coverage 2X'.. CalcCentroidPos(*psContext, samplePos, coverageMask, sampleMask, psContext->vX.UL, psContext->vY.UL); } CalcCentroidBarycentrics(coeffs, *psContext, psContext->vX.UL, psContext->vY.UL); } else { psContext->vX.centroid = psContext->vX.sample; psContext->vY.centroid = psContext->vY.sample; } } } template struct PixelRateZTestLoop { PixelRateZTestLoop(DRAW_CONTEXT* DC, uint32_t _workerId, const SWR_TRIANGLE_DESC& Work, const BarycentricCoeffs& Coeffs, const API_STATE& apiState, uint8_t*& depthBuffer, uint8_t*& stencilBuffer, const uint8_t ClipDistanceMask) : pDC(DC), workerId(_workerId), work(Work), coeffs(Coeffs), state(apiState), psState(apiState.psState), samplePos(state.rastState.samplePositions), clipDistanceMask(ClipDistanceMask), pDepthBuffer(depthBuffer), pStencilBuffer(stencilBuffer){}; INLINE uint32_t operator()(simdscalar& activeLanes, SWR_PS_CONTEXT& psContext, const CORE_BUCKETS BEDepthBucket, uint32_t currentSimdIn8x8 = 0) { uint32_t statCount = 0; simdscalar anyDepthSamplePassed = _simd_setzero_ps(); for (uint32_t sample = 0; sample < T::MultisampleT::numCoverageSamples; sample++) { const uint8_t* pCoverageMask = (uint8_t*)&work.coverageMask[sample]; vCoverageMask[sample] = _simd_and_ps(activeLanes, _simd_vmask_ps(pCoverageMask[currentSimdIn8x8] & MASK)); if (!_simd_movemask_ps(vCoverageMask[sample])) { vCoverageMask[sample] = depthPassMask[sample] = stencilPassMask[sample] = _simd_setzero_ps(); continue; } // 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(pDepthSample)); const float minz = state.depthBoundsState.depthBoundsTestMinValue; const float maxz = state.depthBoundsState.depthBoundsTestMaxValue; vCoverageMask[sample] = _simd_and_ps(vCoverageMask[sample], _simd_vmask_ps(CalcDepthBoundsAcceptMask(z, minz, maxz))); } RDTSC_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)); // calc I & J per sample CalcSampleBarycentrics(coeffs, psContext); if (psState.writesODepth) { { // broadcast and test oDepth(psContext.vZ) written from the PS for each sample vZ[sample] = psContext.vZ; } } else { vZ[sample] = vplaneps( coeffs.vZa, coeffs.vZb, coeffs.vZc, psContext.vI.sample, psContext.vJ.sample); vZ[sample] = state.pfnQuantizeDepth(vZ[sample]); } RDTSC_END(BEBarycentric, 0); ///@todo: perspective correct vs non-perspective correct clipping? // if clip distances are enabled, we need to interpolate for each sample if (clipDistanceMask) { uint8_t clipMask = ComputeUserClipMask(clipDistanceMask, work.pUserClipBuffer, psContext.vI.sample, psContext.vJ.sample); vCoverageMask[sample] = _simd_and_ps(vCoverageMask[sample], _simd_vmask_ps(~clipMask)); } // ZTest for this sample ///@todo Need to uncomment out this bucket. // RDTSC_BEGIN(BEDepthBucket, pDC->drawId); depthPassMask[sample] = vCoverageMask[sample]; stencilPassMask[sample] = vCoverageMask[sample]; depthPassMask[sample] = DepthStencilTest(&state, work.triFlags.frontFacing, work.triFlags.viewportIndex, vZ[sample], pDepthSample, vCoverageMask[sample], pStencilSample, &stencilPassMask[sample]); // RDTSC_END(BEDepthBucket, 0); // early-exit if no pixels passed depth or earlyZ is forced on if (psState.forceEarlyZ || !_simd_movemask_ps(depthPassMask[sample])) { DepthStencilWrite(&state.vp[work.triFlags.viewportIndex], &state.depthStencilState, work.triFlags.frontFacing, vZ[sample], pDepthSample, depthPassMask[sample], vCoverageMask[sample], pStencilSample, stencilPassMask[sample]); if (!_simd_movemask_ps(depthPassMask[sample])) { continue; } } anyDepthSamplePassed = _simd_or_ps(anyDepthSamplePassed, depthPassMask[sample]); uint32_t statMask = _simd_movemask_ps(depthPassMask[sample]); statCount += _mm_popcnt_u32(statMask); } activeLanes = _simd_and_ps(anyDepthSamplePassed, activeLanes); // return number of samples that passed depth and coverage return statCount; } // saved depth/stencil/coverage masks and interpolated Z used in OM and DepthWrite simdscalar vZ[T::MultisampleT::numCoverageSamples]; simdscalar vCoverageMask[T::MultisampleT::numCoverageSamples]; simdscalar depthPassMask[T::MultisampleT::numCoverageSamples]; simdscalar stencilPassMask[T::MultisampleT::numCoverageSamples]; private: // functor inputs DRAW_CONTEXT* pDC; uint32_t workerId; const SWR_TRIANGLE_DESC& work; const BarycentricCoeffs& coeffs; const API_STATE& state; const SWR_PS_STATE& psState; const SWR_MULTISAMPLE_POS& samplePos; const uint8_t clipDistanceMask; uint8_t*& pDepthBuffer; uint8_t*& pStencilBuffer; }; INLINE void CalcPixelBarycentrics(const BarycentricCoeffs& coeffs, SWR_PS_CONTEXT& psContext) { // evaluate I,J psContext.vI.center = vplaneps(coeffs.vIa, coeffs.vIb, coeffs.vIc, psContext.vX.center, psContext.vY.center); psContext.vJ.center = vplaneps(coeffs.vJa, coeffs.vJb, coeffs.vJc, psContext.vX.center, psContext.vY.center); psContext.vI.center = _simd_mul_ps(psContext.vI.center, coeffs.vRecipDet); psContext.vJ.center = _simd_mul_ps(psContext.vJ.center, coeffs.vRecipDet); // interpolate 1/w psContext.vOneOverW.center = vplaneps(coeffs.vAOneOverW, coeffs.vBOneOverW, coeffs.vCOneOverW, psContext.vI.center, psContext.vJ.center); } static INLINE void CalcSampleBarycentrics(const BarycentricCoeffs& coeffs, SWR_PS_CONTEXT& psContext) { // evaluate I,J psContext.vI.sample = vplaneps(coeffs.vIa, coeffs.vIb, coeffs.vIc, psContext.vX.sample, psContext.vY.sample); psContext.vJ.sample = vplaneps(coeffs.vJa, coeffs.vJb, coeffs.vJc, psContext.vX.sample, psContext.vY.sample); psContext.vI.sample = _simd_mul_ps(psContext.vI.sample, coeffs.vRecipDet); psContext.vJ.sample = _simd_mul_ps(psContext.vJ.sample, coeffs.vRecipDet); // interpolate 1/w psContext.vOneOverW.sample = vplaneps(coeffs.vAOneOverW, coeffs.vBOneOverW, coeffs.vCOneOverW, psContext.vI.sample, psContext.vJ.sample); } // Merge Output to 4x2 SIMD Tile Format INLINE void OutputMerger4x2(DRAW_CONTEXT* pDC, SWR_PS_CONTEXT& psContext, uint8_t* (&pColorBase)[SWR_NUM_RENDERTARGETS], uint32_t sample, const SWR_BLEND_STATE* pBlendState, const PFN_BLEND_JIT_FUNC (&pfnBlendFunc)[SWR_NUM_RENDERTARGETS], simdscalar& coverageMask, simdscalar const& depthPassMask, uint32_t renderTargetMask, uint32_t workerId) { // type safety guaranteed from template instantiation in BEChooser<>::GetFunc const uint32_t rasterTileColorOffset = RasterTileColorOffset(sample); simdvector blendOut; DWORD rt = 0; while (_BitScanForward(&rt, renderTargetMask)) { renderTargetMask &= ~(1 << rt); uint8_t* pColorSample = pColorBase[rt] + rasterTileColorOffset; const SWR_RENDER_TARGET_BLEND_STATE* pRTBlend = &pBlendState->renderTarget[rt]; SWR_BLEND_CONTEXT blendContext = {0}; { // pfnBlendFunc may not update all channels. Initialize with PS output. /// TODO: move this into the blend JIT. blendOut = psContext.shaded[rt]; blendContext.pBlendState = pBlendState; blendContext.src = &psContext.shaded[rt]; blendContext.src1 = &psContext.shaded[1]; blendContext.src0alpha = reinterpret_cast(&psContext.shaded[0].w); blendContext.sampleNum = sample; blendContext.pDst = (simdvector*)&pColorSample; blendContext.result = &blendOut; blendContext.oMask = &psContext.oMask; blendContext.pMask = reinterpret_cast(&coverageMask); // Blend outputs and update coverage mask for alpha test if (pfnBlendFunc[rt] != nullptr) { pfnBlendFunc[rt](&blendContext); } } // Track alpha events AR_EVENT( AlphaInfoEvent(pDC->drawId, blendContext.isAlphaTested, blendContext.isAlphaBlended)); // final write mask simdscalari outputMask = _simd_castps_si(_simd_and_ps(coverageMask, depthPassMask)); ///@todo can only use maskstore fast path if bpc is 32. Assuming hot tile is RGBA32_FLOAT. static_assert(KNOB_COLOR_HOT_TILE_FORMAT == R32G32B32A32_FLOAT, "Unsupported hot tile format"); const uint32_t simd = KNOB_SIMD_WIDTH * sizeof(float); // store with color mask if (!pRTBlend->writeDisableRed) { _simd_maskstore_ps((float*)pColorSample, outputMask, blendOut.x); } if (!pRTBlend->writeDisableGreen) { _simd_maskstore_ps((float*)(pColorSample + simd), outputMask, blendOut.y); } if (!pRTBlend->writeDisableBlue) { _simd_maskstore_ps((float*)(pColorSample + simd * 2), outputMask, blendOut.z); } if (!pRTBlend->writeDisableAlpha) { _simd_maskstore_ps((float*)(pColorSample + simd * 3), outputMask, blendOut.w); } } } #if USE_8x2_TILE_BACKEND // Merge Output to 8x2 SIMD16 Tile Format INLINE void OutputMerger8x2(DRAW_CONTEXT* pDC, SWR_PS_CONTEXT& psContext, uint8_t* (&pColorBase)[SWR_NUM_RENDERTARGETS], uint32_t sample, const SWR_BLEND_STATE* pBlendState, const PFN_BLEND_JIT_FUNC (&pfnBlendFunc)[SWR_NUM_RENDERTARGETS], simdscalar& coverageMask, simdscalar const& depthPassMask, uint32_t renderTargetMask, bool useAlternateOffset, uint32_t workerId) { // type safety guaranteed from template instantiation in BEChooser<>::GetFunc uint32_t rasterTileColorOffset = RasterTileColorOffset(sample); if (useAlternateOffset) { rasterTileColorOffset += sizeof(simdscalar); } simdvector blendSrc; simdvector blendOut; DWORD rt; while (_BitScanForward(&rt, renderTargetMask)) { renderTargetMask &= ~(1 << rt); const SWR_RENDER_TARGET_BLEND_STATE* pRTBlend = &pBlendState->renderTarget[rt]; simdscalar* pColorSample; bool hotTileEnable = !pRTBlend->writeDisableAlpha || !pRTBlend->writeDisableRed || !pRTBlend->writeDisableGreen || !pRTBlend->writeDisableBlue; if (hotTileEnable) { pColorSample = reinterpret_cast(pColorBase[rt] + rasterTileColorOffset); blendSrc[0] = pColorSample[0]; blendSrc[1] = pColorSample[2]; blendSrc[2] = pColorSample[4]; blendSrc[3] = pColorSample[6]; } else { pColorSample = nullptr; } SWR_BLEND_CONTEXT blendContext = {0}; { // pfnBlendFunc may not update all channels. Initialize with PS output. /// TODO: move this into the blend JIT. blendOut = psContext.shaded[rt]; blendContext.pBlendState = pBlendState; blendContext.src = &psContext.shaded[rt]; blendContext.src1 = &psContext.shaded[1]; blendContext.src0alpha = reinterpret_cast(&psContext.shaded[0].w); blendContext.sampleNum = sample; blendContext.pDst = &blendSrc; blendContext.result = &blendOut; blendContext.oMask = &psContext.oMask; blendContext.pMask = reinterpret_cast(&coverageMask); // Blend outputs and update coverage mask for alpha test if (pfnBlendFunc[rt] != nullptr) { pfnBlendFunc[rt](&blendContext); } } // Track alpha events AR_EVENT( AlphaInfoEvent(pDC->drawId, blendContext.isAlphaTested, blendContext.isAlphaBlended)); // final write mask simdscalari outputMask = _simd_castps_si(_simd_and_ps(coverageMask, depthPassMask)); ///@todo can only use maskstore fast path if bpc is 32. Assuming hot tile is RGBA32_FLOAT. static_assert(KNOB_COLOR_HOT_TILE_FORMAT == R32G32B32A32_FLOAT, "Unsupported hot tile format"); // store with color mask if (!pRTBlend->writeDisableRed) { _simd_maskstore_ps(reinterpret_cast(&pColorSample[0]), outputMask, blendOut.x); } if (!pRTBlend->writeDisableGreen) { _simd_maskstore_ps(reinterpret_cast(&pColorSample[2]), outputMask, blendOut.y); } if (!pRTBlend->writeDisableBlue) { _simd_maskstore_ps(reinterpret_cast(&pColorSample[4]), outputMask, blendOut.z); } if (!pRTBlend->writeDisableAlpha) { _simd_maskstore_ps(reinterpret_cast(&pColorSample[6]), outputMask, blendOut.w); } } } #endif template void BackendPixelRate(DRAW_CONTEXT* pDC, uint32_t workerId, uint32_t x, uint32_t y, SWR_TRIANGLE_DESC& work, RenderOutputBuffers& renderBuffers) { ///@todo: Need to move locals off stack to prevent __chkstk's from being generated for the /// backend RDTSC_BEGIN(BEPixelRateBackend, pDC->drawId); RDTSC_BEGIN(BESetup, pDC->drawId); const API_STATE& state = GetApiState(pDC); BarycentricCoeffs coeffs; SetupBarycentricCoeffs(&coeffs, work); SWR_CONTEXT* pContext = pDC->pContext; void* pWorkerData = pContext->threadPool.pThreadData[workerId].pWorkerPrivateData; SWR_PS_CONTEXT psContext; const SWR_MULTISAMPLE_POS& samplePos = state.rastState.samplePositions; SetupPixelShaderContext(&psContext, samplePos, work); uint8_t *pDepthBuffer, *pStencilBuffer; SetupRenderBuffers(psContext.pColorBuffer, &pDepthBuffer, &pStencilBuffer, state.colorHottileEnable, renderBuffers); RDTSC_END(BESetup, 0); PixelRateZTestLoop PixelRateZTest(pDC, workerId, work, coeffs, state, pDepthBuffer, pStencilBuffer, state.backendState.clipDistanceMask); psContext.vY.UL = _simd_add_ps(vULOffsetsY, _simd_set1_ps(static_cast(y))); psContext.vY.center = _simd_add_ps(vCenterOffsetsY, _simd_set1_ps(static_cast(y))); const simdscalar dy = _simd_set1_ps(static_cast(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(x))); psContext.vX.center = _simd_add_ps(vCenterOffsetsX, _simd_set1_ps(static_cast(x))); const simdscalar dx = _simd_set1_ps(static_cast(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 simdscalar activeLanes; if (!(work.anyCoveredSamples & MASK)) { goto Endtile; }; activeLanes = _simd_vmask_ps(work.anyCoveredSamples & MASK); if (T::InputCoverage != SWR_INPUT_COVERAGE_NONE) { const uint64_t* pCoverageMask = (T::InputCoverage == SWR_INPUT_COVERAGE_INNER_CONSERVATIVE) ? &work.innerCoverageMask : &work.coverageMask[0]; generateInputCoverage( pCoverageMask, psContext.inputMask, state.blendState.sampleMask); } RDTSC_BEGIN(BEBarycentric, pDC->drawId); CalcPixelBarycentrics(coeffs, psContext); CalcCentroid( &psContext, samplePos, coeffs, work.coverageMask, state.blendState.sampleMask); RDTSC_END(BEBarycentric, 0); if (T::bForcedSampleCount) { // candidate pixels (that passed coverage) will cause shader invocation if any bits // in the samplemask are set const simdscalar vSampleMask = _simd_castsi_ps(_simd_cmpgt_epi32( _simd_set1_epi32(state.blendState.sampleMask), _simd_setzero_si())); activeLanes = _simd_and_ps(activeLanes, vSampleMask); } // Early-Z? if (T::bCanEarlyZ && !T::bForcedSampleCount) { uint32_t depthPassCount = PixelRateZTest(activeLanes, psContext, BEEarlyDepthTest); UPDATE_STAT_BE(DepthPassCount, depthPassCount); AR_EVENT(EarlyDepthInfoPixelRate(depthPassCount, _simd_movemask_ps(activeLanes))); } // if we have no covered samples that passed depth at this point, go to next tile if (!_simd_movemask_ps(activeLanes)) { goto Endtile; }; if (state.psState.usesSourceDepth) { RDTSC_BEGIN(BEBarycentric, pDC->drawId); // interpolate and quantize z psContext.vZ = vplaneps( coeffs.vZa, coeffs.vZb, coeffs.vZc, psContext.vI.center, psContext.vJ.center); psContext.vZ = state.pfnQuantizeDepth(psContext.vZ); RDTSC_END(BEBarycentric, 0); } // pixels that are currently active psContext.activeMask = _simd_castps_si(activeLanes); psContext.oMask = T::MultisampleT::FullSampleMask(); // execute pixel shader RDTSC_BEGIN(BEPixelShader, pDC->drawId); state.psState.pfnPixelShader(GetPrivateState(pDC), pWorkerData, &psContext); UPDATE_STAT_BE(PsInvocations, _mm_popcnt_u32(_simd_movemask_ps(activeLanes))); RDTSC_END(BEPixelShader, 0); // update stats UPDATE_STAT_BE(PsInvocations, _mm_popcnt_u32(_simd_movemask_ps(activeLanes))); AR_EVENT(PSStats(psContext.stats.numInstExecuted)); // update active lanes to remove any discarded or oMask'd pixels activeLanes = _simd_castsi_ps(_simd_and_si( psContext.activeMask, _simd_cmpgt_epi32(psContext.oMask, _simd_setzero_si()))); if (!_simd_movemask_ps(activeLanes)) { goto Endtile; }; // late-Z if (!T::bCanEarlyZ && !T::bForcedSampleCount) { uint32_t depthPassCount = PixelRateZTest(activeLanes, psContext, BELateDepthTest); UPDATE_STAT_BE(DepthPassCount, depthPassCount); AR_EVENT(LateDepthInfoPixelRate(depthPassCount, _simd_movemask_ps(activeLanes))); } // if we have no covered samples that passed depth at this point, skip OM and go to next // tile if (!_simd_movemask_ps(activeLanes)) { goto Endtile; }; // output merger // loop over all samples, broadcasting the results of the PS to all passing pixels for (uint32_t sample = 0; sample < GetNumOMSamples(state.blendState.sampleCount); sample++) { RDTSC_BEGIN(BEOutputMerger, pDC->drawId); // center pattern does a single coverage/depth/stencil test, standard pattern tests // all samples uint32_t coverageSampleNum = (T::bIsCenterPattern) ? 0 : sample; simdscalar coverageMask, depthMask; if (T::bForcedSampleCount) { coverageMask = depthMask = activeLanes; } else { coverageMask = PixelRateZTest.vCoverageMask[coverageSampleNum]; depthMask = PixelRateZTest.depthPassMask[coverageSampleNum]; if (!_simd_movemask_ps(depthMask)) { // stencil should already have been written in early/lateZ tests RDTSC_END(BEOutputMerger, 0); continue; } } // broadcast the results of the PS to all passing pixels #if USE_8x2_TILE_BACKEND OutputMerger8x2(pDC, psContext, psContext.pColorBuffer, sample, &state.blendState, state.pfnBlendFunc, coverageMask, depthMask, state.psState.renderTargetMask, useAlternateOffset, workerId); #else // USE_8x2_TILE_BACKEND OutputMerger4x2(pDC, psContext, psContext.pColorBuffer, sample, &state.blendState, state.pfnBlendFunc, coverageMask, depthMask, state.psState.renderTargetMask, workerId); #endif // USE_8x2_TILE_BACKEND if (!state.psState.forceEarlyZ && !T::bForcedSampleCount) { uint8_t* pDepthSample = pDepthBuffer + RasterTileDepthOffset(sample); uint8_t* pStencilSample = pStencilBuffer + RasterTileStencilOffset(sample); DepthStencilWrite(&state.vp[work.triFlags.viewportIndex], &state.depthStencilState, work.triFlags.frontFacing, PixelRateZTest.vZ[coverageSampleNum], pDepthSample, depthMask, coverageMask, pStencilSample, PixelRateZTest.stencilPassMask[coverageSampleNum]); } RDTSC_END(BEOutputMerger, 0); } Endtile: RDTSC_BEGIN(BEEndTile, pDC->drawId); for (uint32_t sample = 0; sample < T::MultisampleT::numCoverageSamples; sample++) { work.coverageMask[sample] >>= (SIMD_TILE_Y_DIM * SIMD_TILE_X_DIM); } if (T::InputCoverage == SWR_INPUT_COVERAGE_INNER_CONSERVATIVE) { work.innerCoverageMask >>= (SIMD_TILE_Y_DIM * SIMD_TILE_X_DIM); } work.anyCoveredSamples >>= (SIMD_TILE_Y_DIM * SIMD_TILE_X_DIM); #if USE_8x2_TILE_BACKEND if (useAlternateOffset) { DWORD rt; uint32_t rtMask = state.colorHottileEnable; while (_BitScanForward(&rt, rtMask)) { rtMask &= ~(1 << rt); psContext.pColorBuffer[rt] += (2 * KNOB_SIMD_WIDTH * FormatTraits::bpp) / 8; } } #else DWORD rt; uint32_t rtMask = state.colorHottileEnable; while (_BitScanForward(&rt, rtMask)) { rtMask &= ~(1 << rt); psContext.pColorBuffer[rt] += (KNOB_SIMD_WIDTH * FormatTraits::bpp) / 8; } #endif pDepthBuffer += (KNOB_SIMD_WIDTH * FormatTraits::bpp) / 8; pStencilBuffer += (KNOB_SIMD_WIDTH * FormatTraits::bpp) / 8; RDTSC_END(BEEndTile, 0); psContext.vX.UL = _simd_add_ps(psContext.vX.UL, dx); psContext.vX.center = _simd_add_ps(psContext.vX.center, dx); } psContext.vY.UL = _simd_add_ps(psContext.vY.UL, dy); psContext.vY.center = _simd_add_ps(psContext.vY.center, dy); } RDTSC_END(BEPixelRateBackend, 0); } template struct SwrBackendTraits { static const bool bIsCenterPattern = (isCenter == 1); static const uint32_t InputCoverage = coverage; static const bool bCentroidPos = (centroid == 1); static const bool bForcedSampleCount = (forced == 1); static const bool bCanEarlyZ = (canEarlyZ == 1); typedef MultisampleTraits<(SWR_MULTISAMPLE_COUNT)sampleCountT, bIsCenterPattern> MultisampleT; };