| /* |
| * Copyright 2021 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include "src/gpu/ops/AtlasRenderTask.h" |
| |
| #include "src/core/SkBlendModePriv.h" |
| #include "src/core/SkIPoint16.h" |
| #include "src/gpu/GrGpu.h" |
| #include "src/gpu/GrOpFlushState.h" |
| #include "src/gpu/GrOpsTypes.h" |
| #include "src/gpu/ops/FillRectOp.h" |
| #include "src/gpu/ops/PathStencilCoverOp.h" |
| |
| namespace skgpu::v1 { |
| |
| AtlasRenderTask::AtlasRenderTask(GrRecordingContext* rContext, |
| sk_sp<GrArenas> arenas, |
| std::unique_ptr<GrDynamicAtlas> dynamicAtlas) |
| : OpsTask(rContext->priv().drawingManager(), |
| dynamicAtlas->writeView(*rContext->priv().caps()), |
| rContext->priv().auditTrail(), |
| std::move(arenas)) |
| , fDynamicAtlas(std::move(dynamicAtlas)) { |
| } |
| |
| bool AtlasRenderTask::addPath(const SkMatrix& viewMatrix, const SkPath& path, |
| SkIPoint pathDevTopLeft, int widthInAtlas, int heightInAtlas, |
| bool transposedInAtlas, SkIPoint16* locationInAtlas) { |
| SkASSERT(!this->isClosed()); |
| SkASSERT(this->isEmpty()); |
| SkASSERT(!fDynamicAtlas->isInstantiated()); // Paths can't be added after instantiate(). |
| |
| if (!fDynamicAtlas->addRect(widthInAtlas, heightInAtlas, locationInAtlas)) { |
| return false; |
| } |
| |
| SkMatrix pathToAtlasMatrix = viewMatrix; |
| if (transposedInAtlas) { |
| std::swap(pathToAtlasMatrix[0], pathToAtlasMatrix[3]); |
| std::swap(pathToAtlasMatrix[1], pathToAtlasMatrix[4]); |
| float tx=pathToAtlasMatrix.getTranslateX(), ty=pathToAtlasMatrix.getTranslateY(); |
| pathToAtlasMatrix.setTranslateX(ty - pathDevTopLeft.y() + locationInAtlas->x()); |
| pathToAtlasMatrix.setTranslateY(tx - pathDevTopLeft.x() + locationInAtlas->y()); |
| } else { |
| pathToAtlasMatrix.postTranslate(locationInAtlas->x() - pathDevTopLeft.x(), |
| locationInAtlas->y() - pathDevTopLeft.y()); |
| } |
| |
| if (GrFillRuleForSkPath(path) == GrFillRule::kNonzero) { |
| fWindingPathList.add(&fPathDrawAllocator, pathToAtlasMatrix, path); |
| } else { |
| fEvenOddPathList.add(&fPathDrawAllocator, pathToAtlasMatrix, path); |
| } |
| return true; |
| } |
| |
| GrRenderTask::ExpectedOutcome AtlasRenderTask::onMakeClosed(GrRecordingContext* rContext, |
| SkIRect* targetUpdateBounds) { |
| // We don't add our ops until now, at which point we know the atlas is done being built. |
| SkASSERT(this->isEmpty()); |
| SkASSERT(!fDynamicAtlas->isInstantiated()); // Instantiation happens after makeClosed(). |
| |
| const GrCaps& caps = *rContext->priv().caps(); |
| |
| // Set our dimensions now. OpsTask will need them when we add our ops. |
| this->target(0)->priv().setLazyDimensions(fDynamicAtlas->drawBounds()); |
| this->target(0)->asRenderTargetProxy()->setNeedsStencil(); |
| SkRect drawRect = target(0)->getBoundsRect(); |
| |
| // Clear the atlas. |
| if (caps.performColorClearsAsDraws() || caps.performStencilClearsAsDraws()) { |
| this->setColorLoadOp(GrLoadOp::kDiscard); |
| this->setInitialStencilContent(StencilContent::kDontCare); |
| |
| constexpr static GrUserStencilSettings kClearStencil( |
| GrUserStencilSettings::StaticInit< |
| 0x0000, |
| GrUserStencilTest::kAlways, |
| 0xffff, |
| GrUserStencilOp::kReplace, |
| GrUserStencilOp::kReplace, |
| 0xffff>()); |
| |
| this->stencilAtlasRect(rContext, drawRect, SK_PMColor4fTRANSPARENT, &kClearStencil); |
| } else { |
| this->setColorLoadOp(GrLoadOp::kClear); |
| this->setInitialStencilContent(StencilContent::kUserBitsCleared); |
| } |
| |
| // Add ops to stencil the atlas paths. |
| for (const auto* pathList : {&fWindingPathList, &fEvenOddPathList}) { |
| if (pathList->pathCount() > 0) { |
| auto op = GrOp::Make<PathStencilCoverOp>( |
| rContext, |
| pathList->pathDrawList(), |
| pathList->totalCombinedPathVerbCnt(), |
| pathList->pathCount(), |
| GrPaint(), |
| GrAAType::kMSAA, |
| skgpu::tess::TessellationPathFlags::kStencilOnly, |
| drawRect); |
| this->addAtlasDrawOp(std::move(op), caps); |
| } |
| } |
| |
| // Finally, draw a fullscreen rect to cover our stencilled paths. |
| const GrUserStencilSettings* stencil; |
| if (caps.discardStencilValuesAfterRenderPass()) { |
| constexpr static GrUserStencilSettings kTestStencil( |
| GrUserStencilSettings::StaticInit< |
| 0x0000, |
| GrUserStencilTest::kNotEqual, |
| 0xffff, |
| GrUserStencilOp::kKeep, |
| GrUserStencilOp::kKeep, |
| 0xffff>()); |
| |
| // This is the final op in the task. Since Ganesh is planning to discard the stencil values |
| // anyway, there is no need to reset the stencil values back to 0. |
| stencil = &kTestStencil; |
| } else { |
| constexpr static GrUserStencilSettings kTestAndResetStencil( |
| GrUserStencilSettings::StaticInit< |
| 0x0000, |
| GrUserStencilTest::kNotEqual, |
| 0xffff, |
| GrUserStencilOp::kZero, |
| GrUserStencilOp::kKeep, |
| 0xffff>()); |
| |
| // Outset the cover rect to make extra sure we clear every stencil value touched by the |
| // atlas. |
| drawRect.outset(1, 1); |
| stencil = &kTestAndResetStencil; |
| } |
| this->stencilAtlasRect(rContext, drawRect, SK_PMColor4fWHITE, stencil); |
| |
| this->OpsTask::onMakeClosed(rContext, targetUpdateBounds); |
| |
| // Don't mark msaa dirty. Since this op defers being closed, the drawing manager's dirty |
| // tracking doesn't work anyway. We will just resolve msaa manually during onExecute. |
| return ExpectedOutcome::kTargetUnchanged; |
| } |
| |
| void AtlasRenderTask::stencilAtlasRect(GrRecordingContext* rContext, const SkRect& rect, |
| const SkPMColor4f& color, |
| const GrUserStencilSettings* stencil) { |
| GrPaint paint; |
| paint.setColor4f(color); |
| paint.setXPFactory(SkBlendMode_AsXPFactory(SkBlendMode::kSrc)); |
| GrQuad quad(rect); |
| DrawQuad drawQuad{quad, quad, GrQuadAAFlags::kAll}; |
| auto op = FillRectOp::Make(rContext, std::move(paint), GrAAType::kMSAA, &drawQuad, stencil); |
| this->addAtlasDrawOp(std::move(op), *rContext->priv().caps()); |
| } |
| |
| void AtlasRenderTask::addAtlasDrawOp(GrOp::Owner op, const GrCaps& caps) { |
| SkASSERT(!this->isClosed()); |
| |
| auto drawOp = static_cast<GrDrawOp*>(op.get()); |
| SkDEBUGCODE(drawOp->fAddDrawOpCalled = true;) |
| |
| auto processorAnalysis = drawOp->finalize(caps, nullptr, |
| GrColorTypeClampType(fDynamicAtlas->colorType())); |
| SkASSERT(!processorAnalysis.requiresDstTexture()); |
| SkASSERT(!processorAnalysis.usesNonCoherentHWBlending()); |
| |
| drawOp->setClippedBounds(drawOp->bounds()); |
| this->recordOp(std::move(op), true/*usesMSAA*/, processorAnalysis, nullptr, nullptr, caps); |
| } |
| |
| bool AtlasRenderTask::onExecute(GrOpFlushState* flushState) { |
| if (!this->OpsTask::onExecute(flushState)) { |
| return false; |
| } |
| if (this->target(0)->requiresManualMSAAResolve()) { |
| // Since atlases don't get closed until they are done being built, the drawingManager |
| // doesn't detect that they need an MSAA resolve. Do it here manually. |
| auto nativeRect = GrNativeRect::MakeIRectRelativeTo( |
| GrDynamicAtlas::kTextureOrigin, |
| this->target(0)->backingStoreDimensions().height(), |
| SkIRect::MakeSize(fDynamicAtlas->drawBounds())); |
| flushState->gpu()->resolveRenderTarget(this->target(0)->peekRenderTarget(), nativeRect); |
| } |
| return true; |
| } |
| |
| } // namespace skgpu::v1 |