| /* |
| * Copyright 2014 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include "GrAADistanceFieldPathRenderer.h" |
| |
| #include "GrBatchFlushState.h" |
| #include "GrBatchTest.h" |
| #include "GrBuffer.h" |
| #include "GrContext.h" |
| #include "GrPipelineBuilder.h" |
| #include "GrResourceProvider.h" |
| #include "GrSurfacePriv.h" |
| #include "GrSWMaskHelper.h" |
| #include "GrTexturePriv.h" |
| #include "batches/GrVertexBatch.h" |
| #include "effects/GrDistanceFieldGeoProc.h" |
| |
| #include "SkDistanceFieldGen.h" |
| #include "SkRTConf.h" |
| |
| #define ATLAS_TEXTURE_WIDTH 2048 |
| #define ATLAS_TEXTURE_HEIGHT 2048 |
| #define PLOT_WIDTH 512 |
| #define PLOT_HEIGHT 256 |
| |
| #define NUM_PLOTS_X (ATLAS_TEXTURE_WIDTH / PLOT_WIDTH) |
| #define NUM_PLOTS_Y (ATLAS_TEXTURE_HEIGHT / PLOT_HEIGHT) |
| |
| #ifdef DF_PATH_TRACKING |
| static int g_NumCachedPaths = 0; |
| static int g_NumFreedPaths = 0; |
| #endif |
| |
| // mip levels |
| static const int kSmallMIP = 32; |
| static const int kMediumMIP = 73; |
| static const int kLargeMIP = 162; |
| |
| // Callback to clear out internal path cache when eviction occurs |
| void GrAADistanceFieldPathRenderer::HandleEviction(GrBatchAtlas::AtlasID id, void* pr) { |
| GrAADistanceFieldPathRenderer* dfpr = (GrAADistanceFieldPathRenderer*)pr; |
| // remove any paths that use this plot |
| PathDataList::Iter iter; |
| iter.init(dfpr->fPathList, PathDataList::Iter::kHead_IterStart); |
| PathData* pathData; |
| while ((pathData = iter.get())) { |
| iter.next(); |
| if (id == pathData->fID) { |
| dfpr->fPathCache.remove(pathData->fKey); |
| dfpr->fPathList.remove(pathData); |
| delete pathData; |
| #ifdef DF_PATH_TRACKING |
| ++g_NumFreedPaths; |
| #endif |
| } |
| } |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| GrAADistanceFieldPathRenderer::GrAADistanceFieldPathRenderer() : fAtlas(nullptr) {} |
| |
| GrAADistanceFieldPathRenderer::~GrAADistanceFieldPathRenderer() { |
| PathDataList::Iter iter; |
| iter.init(fPathList, PathDataList::Iter::kHead_IterStart); |
| PathData* pathData; |
| while ((pathData = iter.get())) { |
| iter.next(); |
| fPathList.remove(pathData); |
| delete pathData; |
| } |
| delete fAtlas; |
| |
| #ifdef DF_PATH_TRACKING |
| SkDebugf("Cached paths: %d, freed paths: %d\n", g_NumCachedPaths, g_NumFreedPaths); |
| #endif |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| bool GrAADistanceFieldPathRenderer::onCanDrawPath(const CanDrawPathArgs& args) const { |
| // We don't currently apply the dash or factor it into the DF key. (skbug.com/5082) |
| if (args.fStyle->pathEffect()) { |
| return false; |
| } |
| // TODO: Support inverse fill |
| if (!args.fShaderCaps->shaderDerivativeSupport() || !args.fAntiAlias || |
| args.fStyle->isSimpleHairline() || args.fPath->isInverseFillType() || |
| args.fPath->isVolatile()) { |
| return false; |
| } |
| |
| // currently don't support perspective |
| if (args.fViewMatrix->hasPerspective()) { |
| return false; |
| } |
| |
| // only support paths with bounds within kMediumMIP by kMediumMIP, |
| // scaled to have bounds within 2.0f*kLargeMIP by 2.0f*kLargeMIP |
| // the goal is to accelerate rendering of lots of small paths that may be scaling |
| SkScalar maxScale = args.fViewMatrix->getMaxScale(); |
| SkRect bounds; |
| args.fStyle->adjustBounds(&bounds, args.fPath->getBounds()); |
| SkScalar maxDim = SkMaxScalar(bounds.width(), bounds.height()); |
| |
| return maxDim <= kMediumMIP && maxDim * maxScale <= 2.0f*kLargeMIP; |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| |
| // padding around path bounds to allow for antialiased pixels |
| static const SkScalar kAntiAliasPad = 1.0f; |
| |
| class AADistanceFieldPathBatch : public GrVertexBatch { |
| public: |
| DEFINE_BATCH_CLASS_ID |
| |
| typedef GrAADistanceFieldPathRenderer::PathData PathData; |
| typedef SkTDynamicHash<PathData, PathData::Key> PathCache; |
| typedef GrAADistanceFieldPathRenderer::PathDataList PathDataList; |
| |
| struct Geometry { |
| Geometry(const SkStrokeRec& stroke) : fStroke(stroke) { |
| if (!stroke.needToApply()) { |
| // purify unused values to ensure binary equality |
| fStroke.setStrokeParams(SkPaint::kDefault_Cap, SkPaint::kDefault_Join, |
| SkIntToScalar(4)); |
| if (fStroke.getWidth() < 0) { |
| fStroke.setStrokeStyle(-1.0f); |
| } |
| } |
| } |
| SkPath fPath; |
| // The unique ID of the path involved in this draw. This may be different than the ID |
| // in fPath since that path may have resulted from a SkStrokeRec::applyToPath call. |
| uint32_t fGenID; |
| SkStrokeRec fStroke; |
| GrColor fColor; |
| bool fAntiAlias; |
| }; |
| |
| static GrDrawBatch* Create(const Geometry& geometry, const SkMatrix& viewMatrix, |
| GrBatchAtlas* atlas, PathCache* pathCache, PathDataList* pathList, |
| bool gammaCorrect) { |
| return new AADistanceFieldPathBatch(geometry, viewMatrix, atlas, pathCache, pathList, |
| gammaCorrect); |
| } |
| |
| const char* name() const override { return "AADistanceFieldPathBatch"; } |
| |
| void computePipelineOptimizations(GrInitInvariantOutput* color, |
| GrInitInvariantOutput* coverage, |
| GrBatchToXPOverrides* overrides) const override { |
| color->setKnownFourComponents(fGeoData[0].fColor); |
| coverage->setUnknownSingleComponent(); |
| } |
| |
| private: |
| void initBatchTracker(const GrXPOverridesForBatch& overrides) override { |
| // Handle any color overrides |
| if (!overrides.readsColor()) { |
| fGeoData[0].fColor = GrColor_ILLEGAL; |
| } |
| overrides.getOverrideColorIfSet(&fGeoData[0].fColor); |
| |
| // setup batch properties |
| fBatch.fColorIgnored = !overrides.readsColor(); |
| fBatch.fUsesLocalCoords = overrides.readsLocalCoords(); |
| fBatch.fCoverageIgnored = !overrides.readsCoverage(); |
| } |
| |
| struct FlushInfo { |
| SkAutoTUnref<const GrBuffer> fVertexBuffer; |
| SkAutoTUnref<const GrBuffer> fIndexBuffer; |
| SkAutoTUnref<const GrGeometryProcessor> fGeometryProcessor; |
| int fVertexOffset; |
| int fInstancesToFlush; |
| }; |
| |
| void onPrepareDraws(Target* target) const override { |
| int instanceCount = fGeoData.count(); |
| |
| SkMatrix invert; |
| if (this->usesLocalCoords() && !this->viewMatrix().invert(&invert)) { |
| SkDebugf("Could not invert viewmatrix\n"); |
| return; |
| } |
| |
| const SkMatrix& ctm = this->viewMatrix(); |
| uint32_t flags = 0; |
| flags |= ctm.isScaleTranslate() ? kScaleOnly_DistanceFieldEffectFlag : 0; |
| flags |= ctm.isSimilarity() ? kSimilarity_DistanceFieldEffectFlag : 0; |
| flags |= fGammaCorrect ? kGammaCorrect_DistanceFieldEffectFlag : 0; |
| |
| GrTextureParams params(SkShader::kRepeat_TileMode, GrTextureParams::kBilerp_FilterMode); |
| |
| FlushInfo flushInfo; |
| |
| // Setup GrGeometryProcessor |
| GrBatchAtlas* atlas = fAtlas; |
| flushInfo.fGeometryProcessor.reset( |
| GrDistanceFieldPathGeoProc::Create(this->color(), |
| this->viewMatrix(), |
| atlas->getTexture(), |
| params, |
| flags, |
| this->usesLocalCoords())); |
| |
| // allocate vertices |
| size_t vertexStride = flushInfo.fGeometryProcessor->getVertexStride(); |
| SkASSERT(vertexStride == 2 * sizeof(SkPoint) + sizeof(GrColor)); |
| |
| const GrBuffer* vertexBuffer; |
| void* vertices = target->makeVertexSpace(vertexStride, |
| kVerticesPerQuad * instanceCount, |
| &vertexBuffer, |
| &flushInfo.fVertexOffset); |
| flushInfo.fVertexBuffer.reset(SkRef(vertexBuffer)); |
| flushInfo.fIndexBuffer.reset(target->resourceProvider()->refQuadIndexBuffer()); |
| if (!vertices || !flushInfo.fIndexBuffer) { |
| SkDebugf("Could not allocate vertices\n"); |
| return; |
| } |
| |
| flushInfo.fInstancesToFlush = 0; |
| for (int i = 0; i < instanceCount; i++) { |
| const Geometry& args = fGeoData[i]; |
| |
| // get mip level |
| SkScalar maxScale = this->viewMatrix().getMaxScale(); |
| const SkRect& bounds = args.fPath.getBounds(); |
| SkScalar maxDim = SkMaxScalar(bounds.width(), bounds.height()); |
| SkScalar size = maxScale * maxDim; |
| uint32_t desiredDimension; |
| if (size <= kSmallMIP) { |
| desiredDimension = kSmallMIP; |
| } else if (size <= kMediumMIP) { |
| desiredDimension = kMediumMIP; |
| } else { |
| desiredDimension = kLargeMIP; |
| } |
| |
| // check to see if path is cached |
| PathData::Key key(args.fGenID, desiredDimension, args.fStroke); |
| PathData* pathData = fPathCache->find(key); |
| if (nullptr == pathData || !atlas->hasID(pathData->fID)) { |
| // Remove the stale cache entry |
| if (pathData) { |
| fPathCache->remove(pathData->fKey); |
| fPathList->remove(pathData); |
| delete pathData; |
| } |
| SkScalar scale = desiredDimension/maxDim; |
| pathData = new PathData; |
| if (!this->addPathToAtlas(target, |
| &flushInfo, |
| atlas, |
| pathData, |
| args.fPath, |
| args.fGenID, |
| args.fStroke, |
| args.fAntiAlias, |
| desiredDimension, |
| scale)) { |
| SkDebugf("Can't rasterize path\n"); |
| return; |
| } |
| } |
| |
| atlas->setLastUseToken(pathData->fID, target->nextDrawToken()); |
| |
| // Now set vertices |
| intptr_t offset = reinterpret_cast<intptr_t>(vertices); |
| offset += i * kVerticesPerQuad * vertexStride; |
| this->writePathVertices(target, |
| atlas, |
| offset, |
| args.fColor, |
| vertexStride, |
| this->viewMatrix(), |
| args.fPath, |
| pathData); |
| flushInfo.fInstancesToFlush++; |
| } |
| |
| this->flush(target, &flushInfo); |
| } |
| |
| SkSTArray<1, Geometry, true>* geoData() { return &fGeoData; } |
| |
| AADistanceFieldPathBatch(const Geometry& geometry, |
| const SkMatrix& viewMatrix, |
| GrBatchAtlas* atlas, |
| PathCache* pathCache, PathDataList* pathList, |
| bool gammaCorrect) |
| : INHERITED(ClassID()) { |
| fBatch.fViewMatrix = viewMatrix; |
| fGeoData.push_back(geometry); |
| |
| fAtlas = atlas; |
| fPathCache = pathCache; |
| fPathList = pathList; |
| fGammaCorrect = gammaCorrect; |
| |
| // Compute bounds |
| fBounds = geometry.fPath.getBounds(); |
| viewMatrix.mapRect(&fBounds); |
| } |
| |
| bool addPathToAtlas(GrVertexBatch::Target* target, |
| FlushInfo* flushInfo, |
| GrBatchAtlas* atlas, |
| PathData* pathData, |
| const SkPath& path, |
| uint32_t genID, |
| const SkStrokeRec& stroke, |
| bool antiAlias, |
| uint32_t dimension, |
| SkScalar scale) const { |
| const SkRect& bounds = path.getBounds(); |
| |
| // generate bounding rect for bitmap draw |
| SkRect scaledBounds = bounds; |
| // scale to mip level size |
| scaledBounds.fLeft *= scale; |
| scaledBounds.fTop *= scale; |
| scaledBounds.fRight *= scale; |
| scaledBounds.fBottom *= scale; |
| // move the origin to an integer boundary (gives better results) |
| SkScalar dx = SkScalarFraction(scaledBounds.fLeft); |
| SkScalar dy = SkScalarFraction(scaledBounds.fTop); |
| scaledBounds.offset(-dx, -dy); |
| // get integer boundary |
| SkIRect devPathBounds; |
| scaledBounds.roundOut(&devPathBounds); |
| // pad to allow room for antialiasing |
| const int intPad = SkScalarCeilToInt(kAntiAliasPad); |
| // pre-move origin (after outset, will be 0,0) |
| int width = devPathBounds.width(); |
| int height = devPathBounds.height(); |
| devPathBounds.fLeft = intPad; |
| devPathBounds.fTop = intPad; |
| devPathBounds.fRight = intPad + width; |
| devPathBounds.fBottom = intPad + height; |
| devPathBounds.outset(intPad, intPad); |
| |
| // draw path to bitmap |
| SkMatrix drawMatrix; |
| drawMatrix.setTranslate(-bounds.left(), -bounds.top()); |
| drawMatrix.postScale(scale, scale); |
| drawMatrix.postTranslate(kAntiAliasPad, kAntiAliasPad); |
| |
| // setup bitmap backing |
| SkASSERT(devPathBounds.fLeft == 0); |
| SkASSERT(devPathBounds.fTop == 0); |
| SkAutoPixmapStorage dst; |
| if (!dst.tryAlloc(SkImageInfo::MakeA8(devPathBounds.width(), |
| devPathBounds.height()))) { |
| return false; |
| } |
| sk_bzero(dst.writable_addr(), dst.getSafeSize()); |
| |
| // rasterize path |
| SkPaint paint; |
| paint.setStyle(SkPaint::kFill_Style); |
| paint.setAntiAlias(antiAlias); |
| |
| SkDraw draw; |
| sk_bzero(&draw, sizeof(draw)); |
| |
| SkRasterClip rasterClip; |
| rasterClip.setRect(devPathBounds); |
| draw.fRC = &rasterClip; |
| draw.fMatrix = &drawMatrix; |
| draw.fDst = dst; |
| |
| draw.drawPathCoverage(path, paint); |
| |
| // generate signed distance field |
| devPathBounds.outset(SK_DistanceFieldPad, SK_DistanceFieldPad); |
| width = devPathBounds.width(); |
| height = devPathBounds.height(); |
| // TODO We should really generate this directly into the plot somehow |
| SkAutoSMalloc<1024> dfStorage(width * height * sizeof(unsigned char)); |
| |
| // Generate signed distance field |
| SkGenerateDistanceFieldFromA8Image((unsigned char*)dfStorage.get(), |
| (const unsigned char*)dst.addr(), |
| dst.width(), dst.height(), dst.rowBytes()); |
| |
| // add to atlas |
| SkIPoint16 atlasLocation; |
| GrBatchAtlas::AtlasID id; |
| bool success = atlas->addToAtlas(&id, target, width, height, dfStorage.get(), |
| &atlasLocation); |
| if (!success) { |
| this->flush(target, flushInfo); |
| |
| SkDEBUGCODE(success =) atlas->addToAtlas(&id, target, width, height, |
| dfStorage.get(), &atlasLocation); |
| SkASSERT(success); |
| |
| } |
| |
| // add to cache |
| pathData->fKey = PathData::Key(genID, dimension, stroke); |
| pathData->fScale = scale; |
| pathData->fID = id; |
| // change the scaled rect to match the size of the inset distance field |
| scaledBounds.fRight = scaledBounds.fLeft + |
| SkIntToScalar(devPathBounds.width() - 2*SK_DistanceFieldInset); |
| scaledBounds.fBottom = scaledBounds.fTop + |
| SkIntToScalar(devPathBounds.height() - 2*SK_DistanceFieldInset); |
| // shift the origin to the correct place relative to the distance field |
| // need to also restore the fractional translation |
| scaledBounds.offset(-SkIntToScalar(SK_DistanceFieldInset) - kAntiAliasPad + dx, |
| -SkIntToScalar(SK_DistanceFieldInset) - kAntiAliasPad + dy); |
| pathData->fBounds = scaledBounds; |
| // origin we render from is inset from distance field edge |
| atlasLocation.fX += SK_DistanceFieldInset; |
| atlasLocation.fY += SK_DistanceFieldInset; |
| pathData->fAtlasLocation = atlasLocation; |
| |
| fPathCache->add(pathData); |
| fPathList->addToTail(pathData); |
| #ifdef DF_PATH_TRACKING |
| ++g_NumCachedPaths; |
| #endif |
| return true; |
| } |
| |
| void writePathVertices(GrDrawBatch::Target* target, |
| GrBatchAtlas* atlas, |
| intptr_t offset, |
| GrColor color, |
| size_t vertexStride, |
| const SkMatrix& viewMatrix, |
| const SkPath& path, |
| const PathData* pathData) const { |
| GrTexture* texture = atlas->getTexture(); |
| |
| SkScalar dx = pathData->fBounds.fLeft; |
| SkScalar dy = pathData->fBounds.fTop; |
| SkScalar width = pathData->fBounds.width(); |
| SkScalar height = pathData->fBounds.height(); |
| |
| SkScalar invScale = 1.0f / pathData->fScale; |
| dx *= invScale; |
| dy *= invScale; |
| width *= invScale; |
| height *= invScale; |
| |
| SkPoint* positions = reinterpret_cast<SkPoint*>(offset); |
| |
| // vertex positions |
| // TODO make the vertex attributes a struct |
| SkRect r = SkRect::MakeXYWH(dx, dy, width, height); |
| positions->setRectFan(r.left(), r.top(), r.right(), r.bottom(), vertexStride); |
| |
| // colors |
| for (int i = 0; i < kVerticesPerQuad; i++) { |
| GrColor* colorPtr = (GrColor*)(offset + sizeof(SkPoint) + i * vertexStride); |
| *colorPtr = color; |
| } |
| |
| const SkScalar tx = SkIntToScalar(pathData->fAtlasLocation.fX); |
| const SkScalar ty = SkIntToScalar(pathData->fAtlasLocation.fY); |
| |
| // vertex texture coords |
| SkPoint* textureCoords = (SkPoint*)(offset + sizeof(SkPoint) + sizeof(GrColor)); |
| textureCoords->setRectFan(tx / texture->width(), |
| ty / texture->height(), |
| (tx + pathData->fBounds.width()) / texture->width(), |
| (ty + pathData->fBounds.height()) / texture->height(), |
| vertexStride); |
| } |
| |
| void flush(GrVertexBatch::Target* target, FlushInfo* flushInfo) const { |
| GrMesh mesh; |
| int maxInstancesPerDraw = |
| static_cast<int>(flushInfo->fIndexBuffer->gpuMemorySize() / sizeof(uint16_t) / 6); |
| mesh.initInstanced(kTriangles_GrPrimitiveType, flushInfo->fVertexBuffer, |
| flushInfo->fIndexBuffer, flushInfo->fVertexOffset, kVerticesPerQuad, |
| kIndicesPerQuad, flushInfo->fInstancesToFlush, maxInstancesPerDraw); |
| target->draw(flushInfo->fGeometryProcessor, mesh); |
| flushInfo->fVertexOffset += kVerticesPerQuad * flushInfo->fInstancesToFlush; |
| flushInfo->fInstancesToFlush = 0; |
| } |
| |
| GrColor color() const { return fGeoData[0].fColor; } |
| const SkMatrix& viewMatrix() const { return fBatch.fViewMatrix; } |
| bool usesLocalCoords() const { return fBatch.fUsesLocalCoords; } |
| |
| bool onCombineIfPossible(GrBatch* t, const GrCaps& caps) override { |
| AADistanceFieldPathBatch* that = t->cast<AADistanceFieldPathBatch>(); |
| if (!GrPipeline::CanCombine(*this->pipeline(), this->bounds(), *that->pipeline(), |
| that->bounds(), caps)) { |
| return false; |
| } |
| |
| // TODO We can position on the cpu |
| if (!this->viewMatrix().cheapEqualTo(that->viewMatrix())) { |
| return false; |
| } |
| |
| fGeoData.push_back_n(that->geoData()->count(), that->geoData()->begin()); |
| this->joinBounds(that->bounds()); |
| return true; |
| } |
| |
| struct BatchTracker { |
| SkMatrix fViewMatrix; |
| bool fUsesLocalCoords; |
| bool fColorIgnored; |
| bool fCoverageIgnored; |
| }; |
| |
| BatchTracker fBatch; |
| SkSTArray<1, Geometry, true> fGeoData; |
| GrBatchAtlas* fAtlas; |
| PathCache* fPathCache; |
| PathDataList* fPathList; |
| bool fGammaCorrect; |
| |
| typedef GrVertexBatch INHERITED; |
| }; |
| |
| bool GrAADistanceFieldPathRenderer::onDrawPath(const DrawPathArgs& args) { |
| GR_AUDIT_TRAIL_AUTO_FRAME(args.fTarget->getAuditTrail(), |
| "GrAADistanceFieldPathRenderer::onDrawPath"); |
| // we've already bailed on inverse filled paths, so this is safe |
| if (args.fPath->isEmpty()) { |
| return true; |
| } |
| |
| if (!fAtlas) { |
| fAtlas = args.fResourceProvider->createAtlas(kAlpha_8_GrPixelConfig, |
| ATLAS_TEXTURE_WIDTH, ATLAS_TEXTURE_HEIGHT, |
| NUM_PLOTS_X, NUM_PLOTS_Y, |
| &GrAADistanceFieldPathRenderer::HandleEviction, |
| (void*)this); |
| if (!fAtlas) { |
| return false; |
| } |
| } |
| |
| // It's ok to ignore style's path effect because canDrawPath filtered out path effects. |
| AADistanceFieldPathBatch::Geometry geometry(args.fStyle->strokeRec()); |
| if (args.fStyle->isSimpleFill()) { |
| geometry.fPath = *args.fPath; |
| } else { |
| args.fStyle->strokeRec().applyToPath(&geometry.fPath, *args.fPath); |
| } |
| geometry.fColor = args.fColor; |
| geometry.fAntiAlias = args.fAntiAlias; |
| // Note: this is the generation ID of the _original_ path. When a new path is |
| // generated due to stroking it is important that the original path's id is used |
| // for caching. |
| geometry.fGenID = args.fPath->getGenerationID(); |
| |
| SkAutoTUnref<GrDrawBatch> batch(AADistanceFieldPathBatch::Create(geometry, |
| *args.fViewMatrix, fAtlas, |
| &fPathCache, &fPathList, |
| args.fGammaCorrect)); |
| args.fTarget->drawBatch(*args.fPipelineBuilder, *args.fClip, batch); |
| |
| return true; |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////////////////////////// |
| |
| #ifdef GR_TEST_UTILS |
| |
| struct PathTestStruct { |
| typedef GrAADistanceFieldPathRenderer::PathCache PathCache; |
| typedef GrAADistanceFieldPathRenderer::PathData PathData; |
| typedef GrAADistanceFieldPathRenderer::PathDataList PathDataList; |
| PathTestStruct() : fContextID(SK_InvalidGenID), fAtlas(nullptr) {} |
| ~PathTestStruct() { this->reset(); } |
| |
| void reset() { |
| PathDataList::Iter iter; |
| iter.init(fPathList, PathDataList::Iter::kHead_IterStart); |
| PathData* pathData; |
| while ((pathData = iter.get())) { |
| iter.next(); |
| fPathList.remove(pathData); |
| delete pathData; |
| } |
| delete fAtlas; |
| fPathCache.reset(); |
| } |
| |
| static void HandleEviction(GrBatchAtlas::AtlasID id, void* pr) { |
| PathTestStruct* dfpr = (PathTestStruct*)pr; |
| // remove any paths that use this plot |
| PathDataList::Iter iter; |
| iter.init(dfpr->fPathList, PathDataList::Iter::kHead_IterStart); |
| PathData* pathData; |
| while ((pathData = iter.get())) { |
| iter.next(); |
| if (id == pathData->fID) { |
| dfpr->fPathCache.remove(pathData->fKey); |
| dfpr->fPathList.remove(pathData); |
| delete pathData; |
| } |
| } |
| } |
| |
| uint32_t fContextID; |
| GrBatchAtlas* fAtlas; |
| PathCache fPathCache; |
| PathDataList fPathList; |
| }; |
| |
| DRAW_BATCH_TEST_DEFINE(AADistanceFieldPathBatch) { |
| static PathTestStruct gTestStruct; |
| |
| if (context->uniqueID() != gTestStruct.fContextID) { |
| gTestStruct.fContextID = context->uniqueID(); |
| gTestStruct.reset(); |
| gTestStruct.fAtlas = |
| context->resourceProvider()->createAtlas(kAlpha_8_GrPixelConfig, |
| ATLAS_TEXTURE_WIDTH, ATLAS_TEXTURE_HEIGHT, |
| NUM_PLOTS_X, NUM_PLOTS_Y, |
| &PathTestStruct::HandleEviction, |
| (void*)&gTestStruct); |
| } |
| |
| SkMatrix viewMatrix = GrTest::TestMatrix(random); |
| GrColor color = GrRandomColor(random); |
| bool gammaCorrect = random->nextBool(); |
| |
| AADistanceFieldPathBatch::Geometry geometry(GrTest::TestStrokeRec(random)); |
| geometry.fColor = color; |
| geometry.fPath = GrTest::TestPath(random); |
| geometry.fAntiAlias = random->nextBool(); |
| geometry.fGenID = random->nextU(); |
| |
| return AADistanceFieldPathBatch::Create(geometry, viewMatrix, |
| gTestStruct.fAtlas, |
| &gTestStruct.fPathCache, |
| &gTestStruct.fPathList, |
| gammaCorrect); |
| } |
| |
| #endif |