/* * Copyright 2021 Google LLC * * Use of this source code is governed by a BSD-style license that can be * found in the LICENSE file. */ #include "gm/gm.h" #include "include/core/SkCanvas.h" #include "include/core/SkPaint.h" #include "include/core/SkRect.h" #include "include/core/SkSize.h" #include "include/core/SkString.h" #include "include/gpu/GrDirectContext.h" #include "src/core/SkConvertPixels.h" #include "src/gpu/GrDirectContextPriv.h" #include "src/gpu/GrPaint.h" #include "src/gpu/GrProxyProvider.h" #include "src/gpu/GrResourceProvider.h" #include "src/gpu/GrSurfaceDrawContext.h" #include "src/gpu/SkGr.h" #include "src/gpu/effects/GrTextureEffect.h" #include "tools/gpu/ProxyUtils.h" static GrSurfaceProxyView create_view(GrDirectContext* dContext, const SkBitmap& src, GrSurfaceOrigin origin) { SkASSERT(src.colorType() == kRGBA_8888_SkColorType); #define USE_LAZY_PROXIES 1 // Toggle this to generate the reference images if (USE_LAZY_PROXIES) { auto format = dContext->priv().caps()->getDefaultBackendFormat(GrColorType::kRGBA_8888, GrRenderable::kNo); if (!format.isValid()) { return {}; } sk_sp<GrTextureProxy> proxy = GrProxyProvider::MakeFullyLazyProxy( [src](GrResourceProvider* rp, const GrSurfaceProxy::LazySurfaceDesc& desc) -> GrSurfaceProxy::LazyCallbackResult { SkASSERT(desc.fMipmapped == GrMipmapped::kNo); GrMipLevel mipLevel = { src.getPixels(), src.rowBytes() }; auto colorType = SkColorTypeToGrColorType(src.colorType()); return rp->createTexture(src.dimensions(), desc.fFormat, colorType, desc.fRenderable, desc.fSampleCnt, desc.fBudgeted, desc.fFit, desc.fProtected, mipLevel); }, format, GrRenderable::kNo, 1, GrProtected::kNo, *dContext->priv().caps(), GrSurfaceProxy::UseAllocator::kYes); if (!proxy) { return {}; } auto swizzle = dContext->priv().caps()->getReadSwizzle(proxy->backendFormat(), GrColorType::kRGBA_8888); return GrSurfaceProxyView(std::move(proxy), origin, swizzle); } return sk_gpu_test::MakeTextureProxyViewFromData(dContext, GrRenderable::kNo, origin, src.pixmap()); } // Create an over large texture which is initialized to opaque black outside of the content // rect. The inside of the content rect consists of a grey coordinate frame lacking the -Y axis. // The -X and +X axes have a red and green dot at their ends (respectively). Finally, the content // rect has a 1-pixel wide blue border. static SkBitmap create_bitmap(SkIRect contentRect, SkISize fullSize, GrSurfaceOrigin origin) { const int kContentSize = contentRect.width(); SkBitmap contentBM; { SkImageInfo contentInfo = SkImageInfo::Make(kContentSize, kContentSize, kRGBA_8888_SkColorType, kOpaque_SkAlphaType); contentBM.allocPixels(contentInfo); contentBM.eraseColor(SK_ColorWHITE); const int halfM1 = kContentSize/2 - 1; // The coordinate frame contentBM.eraseArea(SkIRect::MakeXYWH(halfM1, 2,2, halfM1), SK_ColorGRAY); contentBM.eraseArea(SkIRect::MakeXYWH(2, halfM1, kContentSize-4, 2), SK_ColorGRAY); contentBM.eraseArea(SkIRect::MakeXYWH(2, halfM1, 2, 2), SK_ColorRED); contentBM.eraseArea(SkIRect::MakeXYWH(kContentSize-4, halfM1, 2, 2), SK_ColorGREEN); // The 1-pixel wide rim around the content rect contentBM.eraseArea(SkIRect::MakeXYWH(0, 0, kContentSize, 1), SK_ColorBLUE); contentBM.eraseArea(SkIRect::MakeXYWH(0, 0, 1, kContentSize), SK_ColorBLUE); contentBM.eraseArea(SkIRect::MakeXYWH(kContentSize-1, 0, 1, kContentSize), SK_ColorBLUE); contentBM.eraseArea(SkIRect::MakeXYWH(0, kContentSize-1, kContentSize, 1), SK_ColorBLUE); } SkBitmap bigBM; { const int kLeft = contentRect.fLeft; const int kTop = contentRect.fTop; SkImageInfo bigInfo = SkImageInfo::Make(fullSize.fWidth, fullSize.fHeight, kRGBA_8888_SkColorType, kOpaque_SkAlphaType); bigBM.allocPixels(bigInfo); bigBM.eraseColor(SK_ColorBLACK); const char* src = static_cast<const char*>(contentBM.getPixels()); size_t srcRB = contentBM.rowBytes(); size_t dstRB = bigBM.rowBytes(); if (USE_LAZY_PROXIES && origin == kBottomLeft_GrSurfaceOrigin) { char* dst = static_cast<char*>(bigBM.getAddr(kLeft, fullSize.height() - kTop - 1)); for (int y = 0; y < contentBM.height(); ++y) { memcpy(dst, src, srcRB); src = src + srcRB; dst = dst - dstRB; } } else { char* dst = static_cast<char*>(bigBM.getAddr(kLeft, kTop)); SkRectMemcpy(dst, dstRB, src, srcRB, contentBM.rowBytes(), contentBM.height()); } bigBM.setAlphaType(kOpaque_SkAlphaType); bigBM.setImmutable(); } return bigBM; } static void draw_texture(const GrCaps* caps, GrSurfaceDrawContext* sdc, const GrSurfaceProxyView& src, const SkIRect& srcRect, const SkIRect& drawRect, const SkMatrix& mat, GrSamplerState::WrapMode xTileMode, GrSamplerState::WrapMode yTileMode) { GrSamplerState sampler(xTileMode, yTileMode, SkFilterMode::kNearest); auto fp = GrTextureEffect::MakeSubset(src, kOpaque_SkAlphaType, mat, sampler, SkRect::Make(srcRect), *caps); GrPaint paint; paint.setColorFragmentProcessor(std::move(fp)); sdc->drawRect(nullptr, std::move(paint), GrAA::kNo, SkMatrix::I(), SkRect::Make(drawRect)); } namespace skiagm { // This GM exercises all the different tile modes for a texture that cannot be normalized // early (i.e., rectangle or fully-lazy). // TODO: should we also test w/ mipmapping? class LazyTilingGM : public GpuGM { public: LazyTilingGM(GrSurfaceOrigin origin) : fOrigin(origin) , fContentRect(SkIRect::MakeXYWH(kLeftContentOffset, kTopContentOffset, kContentSize, kContentSize)) { this->setBGColor(0xFFCCCCCC); } protected: SkString onShortName() override { return SkStringPrintf("lazytiling_%s", fOrigin == kTopLeft_GrSurfaceOrigin ? "tl" : "bl"); } SkISize onISize() override { return SkISize::Make(kTotalWidth, kTotalHeight); } DrawResult onGpuSetup(GrDirectContext* dContext, SkString* errorMsg) override { if (!dContext || dContext->abandoned()) { return DrawResult::kSkip; } auto bm = create_bitmap(fContentRect, { kLeftContentOffset + kContentSize + kRightContentPadding, kTopContentOffset + kContentSize + kBottomContentPadding }, fOrigin); fView = create_view(dContext, bm, fOrigin); if (!fView.proxy()) { *errorMsg = "Failed to create proxy"; return DrawResult::kFail; } return DrawResult::kOk; } void onDraw(GrRecordingContext* rContext, GrSurfaceDrawContext* sdc, SkCanvas* canvas) override { SkSamplingOptions sampling(SkFilterMode::kNearest, SkMipmapMode::kNone); SkPaint p; int y = kPad; for (auto yMode : { SkTileMode::kClamp, SkTileMode::kRepeat, SkTileMode::kMirror, SkTileMode::kDecal }) { int x = kPad; for (auto xMode : { SkTileMode::kClamp, SkTileMode::kRepeat, SkTileMode::kMirror, SkTileMode::kDecal }) { SkIRect cellRect = SkIRect::MakeXYWH(x, y, 2*kContentSize, 2*kContentSize); SkRect contentRect = SkRect::MakeXYWH(x+kContentSize/2, y+kContentSize/2, kContentSize, kContentSize); SkMatrix texMatrix = SkMatrix::RectToRect(contentRect, SkRect::Make(fContentRect)); draw_texture(rContext->priv().caps(), sdc, fView, fContentRect, cellRect, texMatrix, SkTileModeToWrapMode(xMode), SkTileModeToWrapMode(yMode)); x += 2*kContentSize+kPad; } y += 2*kContentSize+kPad; } } private: static constexpr int kLeftContentOffset = 8; static constexpr int kTopContentOffset = 16; static constexpr int kRightContentPadding = 24; static constexpr int kBottomContentPadding = 80; static constexpr int kPad = 4; // on-screen padding between cells static constexpr int kContentSize = 32; // Each cell in this GM's grid is a square - 2*kContentSize on a side static constexpr int kTotalWidth = (2*kContentSize+kPad) * kSkTileModeCount + kPad; static constexpr int kTotalHeight = (2*kContentSize+kPad) * kSkTileModeCount + kPad; GrSurfaceOrigin fOrigin; SkIRect fContentRect; GrSurfaceProxyView fView; using INHERITED = GM; }; ////////////////////////////////////////////////////////////////////////////// DEF_GM(return new LazyTilingGM(kTopLeft_GrSurfaceOrigin);) DEF_GM(return new LazyTilingGM(kBottomLeft_GrSurfaceOrigin);) } // namespace skiagm