| /* |
| * Copyright 2015 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include "GrLatticeOp.h" |
| #include "GrDefaultGeoProcFactory.h" |
| #include "GrDrawOpTest.h" |
| #include "GrGpu.h" |
| #include "GrMeshDrawOp.h" |
| #include "GrOpFlushState.h" |
| #include "GrResourceProvider.h" |
| #include "GrResourceProviderPriv.h" |
| #include "GrSimpleMeshDrawOpHelper.h" |
| #include "GrVertexWriter.h" |
| #include "SkBitmap.h" |
| #include "SkGr.h" |
| #include "SkLatticeIter.h" |
| #include "SkMatrixPriv.h" |
| #include "SkRect.h" |
| #include "glsl/GrGLSLColorSpaceXformHelper.h" |
| #include "glsl/GrGLSLGeometryProcessor.h" |
| #include "glsl/GrGLSLVarying.h" |
| |
| namespace { |
| |
| class LatticeGP : public GrGeometryProcessor { |
| public: |
| static sk_sp<GrGeometryProcessor> Make(GrGpu* gpu, |
| const GrTextureProxy* proxy, |
| sk_sp<GrColorSpaceXform> csxf, |
| GrSamplerState::Filter filter, |
| bool wideColor) { |
| return sk_sp<GrGeometryProcessor>( |
| new LatticeGP(gpu, proxy, std::move(csxf), filter, wideColor)); |
| } |
| |
| const char* name() const override { return "LatticeGP"; } |
| |
| void getGLSLProcessorKey(const GrShaderCaps&, GrProcessorKeyBuilder* b) const override { |
| b->add32(GrColorSpaceXform::XformKey(fColorSpaceXform.get())); |
| } |
| |
| GrGLSLPrimitiveProcessor* createGLSLInstance(const GrShaderCaps& caps) const override { |
| class GLSLProcessor : public GrGLSLGeometryProcessor { |
| public: |
| void setData(const GrGLSLProgramDataManager& pdman, const GrPrimitiveProcessor& proc, |
| FPCoordTransformIter&& transformIter) override { |
| const auto& latticeGP = proc.cast<LatticeGP>(); |
| this->setTransformDataHelper(SkMatrix::I(), pdman, &transformIter); |
| fColorSpaceXformHelper.setData(pdman, latticeGP.fColorSpaceXform.get()); |
| } |
| |
| private: |
| void onEmitCode(EmitArgs& args, GrGPArgs* gpArgs) override { |
| using Interpolation = GrGLSLVaryingHandler::Interpolation; |
| const auto& latticeGP = args.fGP.cast<LatticeGP>(); |
| fColorSpaceXformHelper.emitCode(args.fUniformHandler, |
| latticeGP.fColorSpaceXform.get()); |
| |
| args.fVaryingHandler->emitAttributes(latticeGP); |
| this->writeOutputPosition(args.fVertBuilder, gpArgs, latticeGP.fInPosition.name()); |
| this->emitTransforms(args.fVertBuilder, |
| args.fVaryingHandler, |
| args.fUniformHandler, |
| latticeGP.fInTextureCoords.asShaderVar(), |
| args.fFPCoordTransformHandler); |
| args.fFragBuilder->codeAppend("float2 textureCoords;"); |
| args.fVaryingHandler->addPassThroughAttribute(latticeGP.fInTextureCoords, |
| "textureCoords"); |
| args.fFragBuilder->codeAppend("float4 textureDomain;"); |
| args.fVaryingHandler->addPassThroughAttribute( |
| latticeGP.fInTextureDomain, "textureDomain", Interpolation::kCanBeFlat); |
| args.fVaryingHandler->addPassThroughAttribute(latticeGP.fInColor, |
| args.fOutputColor, |
| Interpolation::kCanBeFlat); |
| args.fFragBuilder->codeAppendf("%s = ", args.fOutputColor); |
| args.fFragBuilder->appendTextureLookupAndModulate( |
| args.fOutputColor, |
| args.fTexSamplers[0], |
| "clamp(textureCoords, textureDomain.xy, textureDomain.zw)", |
| kFloat2_GrSLType, |
| &fColorSpaceXformHelper); |
| args.fFragBuilder->codeAppend(";"); |
| args.fFragBuilder->codeAppendf("%s = half4(1);", args.fOutputCoverage); |
| } |
| GrGLSLColorSpaceXformHelper fColorSpaceXformHelper; |
| }; |
| return new GLSLProcessor; |
| } |
| |
| private: |
| LatticeGP(GrGpu* gpu, const GrTextureProxy* proxy, sk_sp<GrColorSpaceXform> csxf, |
| GrSamplerState::Filter filter, bool wideColor) |
| : INHERITED(kLatticeGP_ClassID), fColorSpaceXform(std::move(csxf)) { |
| |
| GrSamplerState samplerState = GrSamplerState(GrSamplerState::WrapMode::kClamp, |
| filter); |
| uint32_t extraSamplerKey = gpu->getExtraSamplerKeyForProgram(samplerState, |
| proxy->backendFormat()); |
| |
| fSampler.reset(proxy->textureType(), proxy->config(), samplerState, |
| extraSamplerKey); |
| this->setTextureSamplerCnt(1); |
| fInPosition = {"position", kFloat2_GrVertexAttribType, kFloat2_GrSLType}; |
| fInTextureCoords = {"textureCoords", kFloat2_GrVertexAttribType, kFloat2_GrSLType}; |
| fInTextureDomain = {"textureDomain", kFloat4_GrVertexAttribType, kFloat4_GrSLType}; |
| fInColor = MakeColorAttribute("color", wideColor); |
| this->setVertexAttributes(&fInPosition, 4); |
| } |
| |
| const TextureSampler& onTextureSampler(int) const override { return fSampler; } |
| |
| Attribute fInPosition; |
| Attribute fInTextureCoords; |
| Attribute fInTextureDomain; |
| Attribute fInColor; |
| |
| sk_sp<GrColorSpaceXform> fColorSpaceXform; |
| TextureSampler fSampler; |
| |
| typedef GrGeometryProcessor INHERITED; |
| }; |
| |
| class NonAALatticeOp final : public GrMeshDrawOp { |
| private: |
| using Helper = GrSimpleMeshDrawOpHelper; |
| |
| public: |
| DEFINE_OP_CLASS_ID |
| |
| static const int kVertsPerRect = 4; |
| static const int kIndicesPerRect = 6; |
| |
| static std::unique_ptr<GrDrawOp> Make(GrRecordingContext* context, |
| GrPaint&& paint, |
| const SkMatrix& viewMatrix, |
| sk_sp<GrTextureProxy> proxy, |
| sk_sp<GrColorSpaceXform> colorSpaceXForm, |
| GrSamplerState::Filter filter, |
| std::unique_ptr<SkLatticeIter> iter, |
| const SkRect& dst) { |
| SkASSERT(proxy); |
| return Helper::FactoryHelper<NonAALatticeOp>(context, std::move(paint), viewMatrix, |
| std::move(proxy), |
| std::move(colorSpaceXForm), filter, |
| std::move(iter), dst); |
| } |
| |
| NonAALatticeOp(Helper::MakeArgs& helperArgs, const SkPMColor4f& color, |
| const SkMatrix& viewMatrix, sk_sp<GrTextureProxy> proxy, |
| sk_sp<GrColorSpaceXform> colorSpaceXform, GrSamplerState::Filter filter, |
| std::unique_ptr<SkLatticeIter> iter, const SkRect& dst) |
| : INHERITED(ClassID()) |
| , fHelper(helperArgs, GrAAType::kNone) |
| , fProxy(std::move(proxy)) |
| , fColorSpaceXform(std::move(colorSpaceXform)) |
| , fFilter(filter) { |
| Patch& patch = fPatches.push_back(); |
| patch.fViewMatrix = viewMatrix; |
| patch.fColor = color; |
| patch.fIter = std::move(iter); |
| patch.fDst = dst; |
| |
| // setup bounds |
| this->setTransformedBounds(patch.fDst, viewMatrix, HasAABloat::kNo, IsZeroArea::kNo); |
| } |
| |
| const char* name() const override { return "NonAALatticeOp"; } |
| |
| void visitProxies(const VisitProxyFunc& func, VisitorType) const override { |
| func(fProxy.get()); |
| fHelper.visitProxies(func); |
| } |
| |
| #ifdef SK_DEBUG |
| SkString dumpInfo() const override { |
| SkString str; |
| |
| for (int i = 0; i < fPatches.count(); ++i) { |
| str.appendf("%d: Color: 0x%08x Dst [L: %.2f, T: %.2f, R: %.2f, B: %.2f]\n", i, |
| fPatches[i].fColor.toBytes_RGBA(), fPatches[i].fDst.fLeft, |
| fPatches[i].fDst.fTop, fPatches[i].fDst.fRight, fPatches[i].fDst.fBottom); |
| } |
| |
| str += fHelper.dumpInfo(); |
| str += INHERITED::dumpInfo(); |
| return str; |
| } |
| #endif |
| |
| FixedFunctionFlags fixedFunctionFlags() const override { return fHelper.fixedFunctionFlags(); } |
| |
| GrProcessorSet::Analysis finalize(const GrCaps& caps, const GrAppliedClip* clip, |
| GrFSAAType fsaaType, GrClampType clampType) override { |
| auto opaque = fPatches[0].fColor.isOpaque() && GrPixelConfigIsOpaque(fProxy->config()) |
| ? GrProcessorAnalysisColor::Opaque::kYes |
| : GrProcessorAnalysisColor::Opaque::kNo; |
| auto analysisColor = GrProcessorAnalysisColor(opaque); |
| auto result = fHelper.finalizeProcessors(caps, clip, fsaaType, clampType, |
| GrProcessorAnalysisCoverage::kNone, |
| &analysisColor); |
| analysisColor.isConstant(&fPatches[0].fColor); |
| fWideColor = SkPMColor4fNeedsWideColor(fPatches[0].fColor, clampType, caps); |
| return result; |
| } |
| |
| private: |
| void onPrepareDraws(Target* target) override { |
| GrGpu* gpu = target->resourceProvider()->priv().gpu(); |
| auto gp = LatticeGP::Make(gpu, fProxy.get(), fColorSpaceXform, fFilter, fWideColor); |
| if (!gp) { |
| SkDebugf("Couldn't create GrGeometryProcessor\n"); |
| return; |
| } |
| |
| int patchCnt = fPatches.count(); |
| int numRects = 0; |
| for (int i = 0; i < patchCnt; i++) { |
| numRects += fPatches[i].fIter->numRectsToDraw(); |
| } |
| |
| if (!numRects) { |
| return; |
| } |
| |
| const size_t kVertexStride = gp->vertexStride(); |
| sk_sp<const GrBuffer> indexBuffer = target->resourceProvider()->refQuadIndexBuffer(); |
| if (!indexBuffer) { |
| SkDebugf("Could not allocate indices\n"); |
| return; |
| } |
| PatternHelper helper(target, GrPrimitiveType::kTriangles, kVertexStride, |
| std::move(indexBuffer), kVertsPerRect, kIndicesPerRect, numRects); |
| GrVertexWriter vertices{helper.vertices()}; |
| if (!vertices.fPtr) { |
| SkDebugf("Could not allocate vertices\n"); |
| return; |
| } |
| |
| for (int i = 0; i < patchCnt; i++) { |
| const Patch& patch = fPatches[i]; |
| |
| GrVertexColor patchColor(patch.fColor, fWideColor); |
| |
| // Apply the view matrix here if it is scale-translate. Otherwise, we need to |
| // wait until we've created the dst rects. |
| bool isScaleTranslate = patch.fViewMatrix.isScaleTranslate(); |
| if (isScaleTranslate) { |
| patch.fIter->mapDstScaleTranslate(patch.fViewMatrix); |
| } |
| |
| SkIRect srcR; |
| SkRect dstR; |
| SkPoint* patchPositions = reinterpret_cast<SkPoint*>(vertices.fPtr); |
| Sk4f scales(1.f / fProxy->width(), 1.f / fProxy->height(), |
| 1.f / fProxy->width(), 1.f / fProxy->height()); |
| static const Sk4f kDomainOffsets(0.5f, 0.5f, -0.5f, -0.5f); |
| static const Sk4f kFlipOffsets(0.f, 1.f, 0.f, 1.f); |
| static const Sk4f kFlipMuls(1.f, -1.f, 1.f, -1.f); |
| while (patch.fIter->next(&srcR, &dstR)) { |
| Sk4f coords(SkIntToScalar(srcR.fLeft), SkIntToScalar(srcR.fTop), |
| SkIntToScalar(srcR.fRight), SkIntToScalar(srcR.fBottom)); |
| Sk4f domain = coords + kDomainOffsets; |
| coords *= scales; |
| domain *= scales; |
| if (fProxy->origin() == kBottomLeft_GrSurfaceOrigin) { |
| coords = kFlipMuls * coords + kFlipOffsets; |
| domain = SkNx_shuffle<0, 3, 2, 1>(kFlipMuls * domain + kFlipOffsets); |
| } |
| SkRect texDomain; |
| SkRect texCoords; |
| domain.store(&texDomain); |
| coords.store(&texCoords); |
| |
| vertices.writeQuad(GrVertexWriter::TriStripFromRect(dstR), |
| GrVertexWriter::TriStripFromRect(texCoords), |
| texDomain, |
| patchColor); |
| } |
| |
| // If we didn't handle it above, apply the matrix here. |
| if (!isScaleTranslate) { |
| SkMatrixPriv::MapPointsWithStride(patch.fViewMatrix, patchPositions, kVertexStride, |
| kVertsPerRect * patch.fIter->numRectsToDraw()); |
| } |
| } |
| auto fixedDynamicState = target->makeFixedDynamicState(1); |
| fixedDynamicState->fPrimitiveProcessorTextures[0] = fProxy.get(); |
| helper.recordDraw(target, std::move(gp), fixedDynamicState); |
| } |
| |
| void onExecute(GrOpFlushState* flushState, const SkRect& chainBounds) override { |
| fHelper.executeDrawsAndUploads(this, flushState, chainBounds); |
| } |
| |
| CombineResult onCombineIfPossible(GrOp* t, const GrCaps& caps) override { |
| NonAALatticeOp* that = t->cast<NonAALatticeOp>(); |
| if (fProxy != that->fProxy) { |
| return CombineResult::kCannotCombine; |
| } |
| if (fFilter != that->fFilter) { |
| return CombineResult::kCannotCombine; |
| } |
| if (GrColorSpaceXform::Equals(fColorSpaceXform.get(), that->fColorSpaceXform.get())) { |
| return CombineResult::kCannotCombine; |
| } |
| if (!fHelper.isCompatible(that->fHelper, caps, this->bounds(), that->bounds())) { |
| return CombineResult::kCannotCombine; |
| } |
| |
| fPatches.move_back_n(that->fPatches.count(), that->fPatches.begin()); |
| fWideColor |= that->fWideColor; |
| return CombineResult::kMerged; |
| } |
| |
| struct Patch { |
| SkMatrix fViewMatrix; |
| std::unique_ptr<SkLatticeIter> fIter; |
| SkRect fDst; |
| SkPMColor4f fColor; |
| }; |
| |
| Helper fHelper; |
| SkSTArray<1, Patch, true> fPatches; |
| sk_sp<GrTextureProxy> fProxy; |
| sk_sp<GrColorSpaceXform> fColorSpaceXform; |
| GrSamplerState::Filter fFilter; |
| bool fWideColor; |
| |
| typedef GrMeshDrawOp INHERITED; |
| }; |
| |
| } // anonymous namespace |
| |
| namespace GrLatticeOp { |
| std::unique_ptr<GrDrawOp> MakeNonAA(GrRecordingContext* context, |
| GrPaint&& paint, |
| const SkMatrix& viewMatrix, |
| sk_sp<GrTextureProxy> proxy, |
| sk_sp<GrColorSpaceXform> colorSpaceXform, |
| GrSamplerState::Filter filter, |
| std::unique_ptr<SkLatticeIter> iter, |
| const SkRect& dst) { |
| return NonAALatticeOp::Make(context, std::move(paint), viewMatrix, std::move(proxy), |
| std::move(colorSpaceXform), filter, std::move(iter), dst); |
| } |
| }; |
| |
| #if GR_TEST_UTILS |
| #include "GrProxyProvider.h" |
| #include "GrRecordingContextPriv.h" |
| |
| /** Randomly divides subset into count divs. */ |
| static void init_random_divs(int divs[], int count, int subsetStart, int subsetStop, |
| SkRandom* random) { |
| // Rules for lattice divs: Must be strictly increasing and in the range |
| // [subsetStart, subsetStop). |
| // Not terribly efficient alg for generating random divs: |
| // 1) Start with minimum legal pixels between each div. |
| // 2) Randomly assign the remaining pixels of the subset to divs. |
| // 3) Convert from pixel counts to div offsets. |
| |
| // 1) Initially each divs[i] represents the number of pixels between |
| // div i-1 and i. The initial div is allowed to be at subsetStart. There |
| // must be one pixel spacing between subsequent divs. |
| divs[0] = 0; |
| for (int i = 1; i < count; ++i) { |
| divs[i] = 1; |
| } |
| // 2) Assign the remaining subset pixels to fall |
| int subsetLength = subsetStop - subsetStart; |
| for (int i = 0; i < subsetLength - count; ++i) { |
| // +1 because count divs means count+1 intervals. |
| int entry = random->nextULessThan(count + 1); |
| // We don't have an entry to to store the count after the last div |
| if (entry < count) { |
| divs[entry]++; |
| } |
| } |
| // 3) Now convert the counts between divs to pixel indices, incorporating the subset's offset. |
| int offset = subsetStart; |
| for (int i = 0; i < count; ++i) { |
| divs[i] += offset; |
| offset = divs[i]; |
| } |
| } |
| |
| GR_DRAW_OP_TEST_DEFINE(NonAALatticeOp) { |
| SkCanvas::Lattice lattice; |
| // We loop because our random lattice code can produce an invalid lattice in the case where |
| // there is a single div separator in both x and y and both are aligned with the left and top |
| // edge of the image subset, respectively. |
| std::unique_ptr<int[]> xdivs; |
| std::unique_ptr<int[]> ydivs; |
| std::unique_ptr<SkCanvas::Lattice::RectType[]> flags; |
| std::unique_ptr<SkColor[]> colors; |
| SkIRect subset; |
| GrSurfaceDesc desc; |
| desc.fConfig = kRGBA_8888_GrPixelConfig; |
| desc.fWidth = random->nextRangeU(1, 1000); |
| desc.fHeight = random->nextRangeU(1, 1000); |
| GrSurfaceOrigin origin = |
| random->nextBool() ? kTopLeft_GrSurfaceOrigin : kBottomLeft_GrSurfaceOrigin; |
| const GrBackendFormat format = |
| context->priv().caps()->getBackendFormatFromColorType(kRGBA_8888_SkColorType); |
| auto proxy = context->priv().proxyProvider()->createProxy( |
| format, desc, origin, SkBackingFit::kExact, SkBudgeted::kYes); |
| |
| do { |
| if (random->nextBool()) { |
| subset.fLeft = random->nextULessThan(desc.fWidth); |
| subset.fRight = random->nextRangeU(subset.fLeft + 1, desc.fWidth); |
| subset.fTop = random->nextULessThan(desc.fHeight); |
| subset.fBottom = random->nextRangeU(subset.fTop + 1, desc.fHeight); |
| } else { |
| subset.setXYWH(0, 0, desc.fWidth, desc.fHeight); |
| } |
| // SkCanvas::Lattice allows bounds to be null. However, SkCanvas creates a temp Lattice with |
| // a non-null bounds before creating a SkLatticeIter since SkLatticeIter requires a bounds. |
| lattice.fBounds = ⊂ |
| lattice.fXCount = random->nextRangeU(1, subset.width()); |
| lattice.fYCount = random->nextRangeU(1, subset.height()); |
| xdivs.reset(new int[lattice.fXCount]); |
| ydivs.reset(new int[lattice.fYCount]); |
| init_random_divs(xdivs.get(), lattice.fXCount, subset.fLeft, subset.fRight, random); |
| init_random_divs(ydivs.get(), lattice.fYCount, subset.fTop, subset.fBottom, random); |
| lattice.fXDivs = xdivs.get(); |
| lattice.fYDivs = ydivs.get(); |
| bool hasFlags = random->nextBool(); |
| if (hasFlags) { |
| int n = (lattice.fXCount + 1) * (lattice.fYCount + 1); |
| flags.reset(new SkCanvas::Lattice::RectType[n]); |
| colors.reset(new SkColor[n]); |
| for (int i = 0; i < n; ++i) { |
| flags[i] = random->nextBool() ? SkCanvas::Lattice::kTransparent |
| : SkCanvas::Lattice::kDefault; |
| } |
| lattice.fRectTypes = flags.get(); |
| lattice.fColors = colors.get(); |
| } else { |
| lattice.fRectTypes = nullptr; |
| lattice.fColors = nullptr; |
| } |
| } while (!SkLatticeIter::Valid(desc.fWidth, desc.fHeight, lattice)); |
| SkRect dst; |
| dst.fLeft = random->nextRangeScalar(-2000.5f, 1000.f); |
| dst.fTop = random->nextRangeScalar(-2000.5f, 1000.f); |
| dst.fRight = dst.fLeft + random->nextRangeScalar(0.5f, 1000.f); |
| dst.fBottom = dst.fTop + random->nextRangeScalar(0.5f, 1000.f); |
| std::unique_ptr<SkLatticeIter> iter(new SkLatticeIter(lattice, dst)); |
| SkMatrix viewMatrix = GrTest::TestMatrixPreservesRightAngles(random); |
| auto csxf = GrTest::TestColorXform(random); |
| GrSamplerState::Filter filter = |
| random->nextBool() ? GrSamplerState::Filter::kNearest : GrSamplerState::Filter::kBilerp; |
| return NonAALatticeOp::Make(context, std::move(paint), viewMatrix, std::move(proxy), |
| std::move(csxf), filter, std::move(iter), dst); |
| } |
| |
| #endif |
