1fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot/* 2fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot * Copyright 2018 Google Inc. 3fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot * 4fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot * Use of this source code is governed by a BSD-style license that can be 5fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot * found in the LICENSE file. 6fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot */ 7fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 8fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot@header { 9fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot #include "GrClip.h" 10fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot #include "GrContext.h" 11fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot #include "GrContextPriv.h" 12fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot #include "GrProxyProvider.h" 13fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot #include "GrRenderTargetContext.h" 14fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot} 15fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 16fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot@class { 17fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot static bool TestForPreservingPMConversions(GrContext* context) { 18fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot static constexpr int kSize = 256; 19fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot static constexpr GrPixelConfig kConfig = kRGBA_8888_GrPixelConfig; 20fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot SkAutoTMalloc<uint32_t> data(kSize * kSize * 3); 21fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot uint32_t* srcData = data.get(); 22fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot uint32_t* firstRead = data.get() + kSize * kSize; 23fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot uint32_t* secondRead = data.get() + 2 * kSize * kSize; 24fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 25fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot // Fill with every possible premultiplied A, color channel value. There will be 256-y 26fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot // duplicate values in row y. We set r, g, and b to the same value since they are handled 27fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot // identically. 28fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot for (int y = 0; y < kSize; ++y) { 29fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot for (int x = 0; x < kSize; ++x) { 30fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot uint8_t* color = reinterpret_cast<uint8_t*>(&srcData[kSize*y + x]); 31fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot color[3] = y; 32fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot color[2] = SkTMin(x, y); 33fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot color[1] = SkTMin(x, y); 34fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot color[0] = SkTMin(x, y); 35fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot } 36fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot } 37fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 38fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot const SkImageInfo ii = SkImageInfo::Make(kSize, kSize, 39fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot kRGBA_8888_SkColorType, kPremul_SkAlphaType); 40fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 41fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot sk_sp<GrRenderTargetContext> readRTC(context->makeDeferredRenderTargetContext( 42fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot SkBackingFit::kExact, 43fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot kSize, kSize, 44fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot kConfig, nullptr)); 45fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot sk_sp<GrRenderTargetContext> tempRTC(context->makeDeferredRenderTargetContext( 46fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot SkBackingFit::kExact, 47fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot kSize, kSize, 48fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot kConfig, nullptr)); 49fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot if (!readRTC || !readRTC->asTextureProxy() || !tempRTC) { 50fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot return false; 51fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot } 52fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot // Adding discard to appease vulkan validation warning about loading uninitialized data on 53fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot // draw 54fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot readRTC->discard(); 55fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 56fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot GrSurfaceDesc desc; 57fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot desc.fOrigin = kTopLeft_GrSurfaceOrigin; 58fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot desc.fWidth = kSize; 59fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot desc.fHeight = kSize; 60fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot desc.fConfig = kConfig; 61fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 62fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot GrProxyProvider* proxyProvider = context->contextPriv().proxyProvider(); 63fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 64fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot sk_sp<GrTextureProxy> dataProxy = proxyProvider->createTextureProxy(desc, SkBudgeted::kYes, 65fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot data, 0); 66fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot if (!dataProxy) { 67fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot return false; 68fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot } 69fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 70fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot static const SkRect kRect = SkRect::MakeIWH(kSize, kSize); 71fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 72fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot // We do a PM->UPM draw from dataTex to readTex and read the data. Then we do a UPM->PM draw 73fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot // from readTex to tempTex followed by a PM->UPM draw to readTex and finally read the data. 74fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot // We then verify that two reads produced the same values. 75fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 76fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot GrPaint paint1; 77fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot GrPaint paint2; 78fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot GrPaint paint3; 79fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot std::unique_ptr<GrFragmentProcessor> pmToUPM( 80fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot new GrConfigConversionEffect(PMConversion::kToUnpremul)); 81fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot std::unique_ptr<GrFragmentProcessor> upmToPM( 82fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot new GrConfigConversionEffect(PMConversion::kToPremul)); 83fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 84fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot paint1.addColorTextureProcessor(dataProxy, SkMatrix::I()); 85fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot paint1.addColorFragmentProcessor(pmToUPM->clone()); 86fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot paint1.setPorterDuffXPFactory(SkBlendMode::kSrc); 87fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 88fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot readRTC->fillRectToRect(GrNoClip(), std::move(paint1), GrAA::kNo, SkMatrix::I(), kRect, 89fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot kRect); 90fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot if (!readRTC->readPixels(ii, firstRead, 0, 0, 0)) { 91fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot return false; 92fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot } 93fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 94fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot // Adding discard to appease vulkan validation warning about loading uninitialized data on 95fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot // draw 96fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot tempRTC->discard(); 97fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 98fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot paint2.addColorTextureProcessor(readRTC->asTextureProxyRef(), SkMatrix::I()); 99fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot paint2.addColorFragmentProcessor(std::move(upmToPM)); 100fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot paint2.setPorterDuffXPFactory(SkBlendMode::kSrc); 101fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 102fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot tempRTC->fillRectToRect(GrNoClip(), std::move(paint2), GrAA::kNo, SkMatrix::I(), kRect, 103fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot kRect); 104fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 105fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot paint3.addColorTextureProcessor(tempRTC->asTextureProxyRef(), SkMatrix::I()); 106fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot paint3.addColorFragmentProcessor(std::move(pmToUPM)); 107fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot paint3.setPorterDuffXPFactory(SkBlendMode::kSrc); 108fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 109fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot readRTC->fillRectToRect(GrNoClip(), std::move(paint3), GrAA::kNo, SkMatrix::I(), kRect, 110fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot kRect); 111fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 112fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot if (!readRTC->readPixels(ii, secondRead, 0, 0, 0)) { 113fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot return false; 114fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot } 115fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 116fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot for (int y = 0; y < kSize; ++y) { 117fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot for (int x = 0; x <= y; ++x) { 118fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot if (firstRead[kSize * y + x] != secondRead[kSize * y + x]) { 119fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot return false; 120fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot } 121fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot } 122fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot } 123fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 124fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot return true; 125fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot } 126fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot} 127fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 128fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot@make { 129fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot static std::unique_ptr<GrFragmentProcessor> Make(std::unique_ptr<GrFragmentProcessor> fp, 130fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot PMConversion pmConversion) { 131fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot if (!fp) { 132fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot return nullptr; 133fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot } 134fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot std::unique_ptr<GrFragmentProcessor> ccFP(new GrConfigConversionEffect(pmConversion)); 135fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot std::unique_ptr<GrFragmentProcessor> fpPipeline[] = { std::move(fp), std::move(ccFP) }; 136fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot return GrFragmentProcessor::RunInSeries(fpPipeline, 2); 137fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot } 138fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot} 139fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 140fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robotlayout(key) in PMConversion pmConversion; 141fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 142fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot@emitCode { 143fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot fragBuilder->forceHighPrecision(); 144fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot} 145fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 146fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robotvoid main() { 147fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot // Aggressively round to the nearest exact (N / 255) floating point value. This lets us find a 148fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot // round-trip preserving pair on some GPUs that do odd byte to float conversion. 149fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot sk_OutColor = floor(sk_InColor * 255 + 0.5) / 255; 150fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 151fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot @switch (pmConversion) { 152fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot case PMConversion::kToPremul: 153fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot sk_OutColor.rgb = floor(sk_OutColor.rgb * sk_OutColor.a * 255 + 0.5) / 255; 154fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot break; 155fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 156fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot case PMConversion::kToUnpremul: 157fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot sk_OutColor.rgb = sk_OutColor.a <= 0.0 ? 158fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot half3(0) : 159fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot floor(sk_OutColor.rgb / sk_OutColor.a * 255 + 0.5) / 255; 160fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot break; 161fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot } 162fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot} 163fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 164fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot@test(data) { 165fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot PMConversion pmConv = static_cast<PMConversion>(data->fRandom->nextULessThan( 166fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot (int) PMConversion::kPMConversionCnt)); 167fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot return std::unique_ptr<GrFragmentProcessor>(new GrConfigConversionEffect(pmConv)); 168fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot} 169