| |
| /* |
| * 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 "GrAtlasTextContext.h" |
| #include "GrBatchTest.h" |
| #include "GrColor.h" |
| #include "GrDrawContext.h" |
| #include "GrDrawingManager.h" |
| #include "GrOvalRenderer.h" |
| #include "GrPathRenderer.h" |
| #include "GrRenderTarget.h" |
| #include "GrRenderTargetPriv.h" |
| #include "GrResourceProvider.h" |
| #include "GrStencilAndCoverTextContext.h" |
| #include "SkSurfacePriv.h" |
| |
| #include "batches/GrBatch.h" |
| #include "batches/GrDrawAtlasBatch.h" |
| #include "batches/GrDrawVerticesBatch.h" |
| #include "batches/GrRectBatchFactory.h" |
| |
| #define ASSERT_OWNED_RESOURCE(R) SkASSERT(!(R) || (R)->getContext() == fDrawingManager->getContext()) |
| #define RETURN_IF_ABANDONED if (fDrawingManager->abandoned()) { return; } |
| #define RETURN_FALSE_IF_ABANDONED if (fDrawingManager->abandoned()) { return false; } |
| #define RETURN_NULL_IF_ABANDONED if (fDrawingManager->abandoned()) { return nullptr; } |
| |
| class AutoCheckFlush { |
| public: |
| AutoCheckFlush(GrDrawingManager* drawingManager) : fDrawingManager(drawingManager) { |
| SkASSERT(fDrawingManager); |
| } |
| ~AutoCheckFlush() { fDrawingManager->getContext()->flushIfNecessary(); } |
| |
| private: |
| GrDrawingManager* fDrawingManager; |
| }; |
| |
| // In MDB mode the reffing of the 'getLastDrawTarget' call's result allows in-progress |
| // drawTargets to be picked up and added to by drawContexts lower in the call |
| // stack. When this occurs with a closed drawTarget, a new one will be allocated |
| // when the drawContext attempts to use it (via getDrawTarget). |
| GrDrawContext::GrDrawContext(GrDrawingManager* drawingMgr, |
| GrRenderTarget* rt, |
| const SkSurfaceProps* surfaceProps) |
| : fDrawingManager(drawingMgr) |
| , fRenderTarget(rt) |
| , fDrawTarget(SkSafeRef(rt->getLastDrawTarget())) |
| , fTextContext(nullptr) |
| , fSurfaceProps(SkSurfacePropsCopyOrDefault(surfaceProps)) { |
| SkDEBUGCODE(this->validate();) |
| } |
| |
| #ifdef SK_DEBUG |
| void GrDrawContext::validate() const { |
| SkASSERT(fRenderTarget); |
| ASSERT_OWNED_RESOURCE(fRenderTarget); |
| |
| if (fDrawTarget && !fDrawTarget->isClosed()) { |
| SkASSERT(fRenderTarget->getLastDrawTarget() == fDrawTarget); |
| } |
| } |
| #endif |
| |
| GrDrawContext::~GrDrawContext() { |
| SkSafeUnref(fDrawTarget); |
| } |
| |
| GrDrawTarget* GrDrawContext::getDrawTarget() { |
| SkDEBUGCODE(this->validate();) |
| |
| if (!fDrawTarget || fDrawTarget->isClosed()) { |
| fDrawTarget = fDrawingManager->newDrawTarget(fRenderTarget); |
| fRenderTarget->setLastDrawTarget(fDrawTarget); |
| } |
| |
| return fDrawTarget; |
| } |
| |
| void GrDrawContext::copySurface(GrSurface* src, const SkIRect& srcRect, const SkIPoint& dstPoint) { |
| RETURN_IF_ABANDONED |
| SkDEBUGCODE(this->validate();) |
| |
| this->getDrawTarget()->copySurface(fRenderTarget, src, srcRect, dstPoint); |
| } |
| |
| |
| void GrDrawContext::drawText(const GrClip& clip, const GrPaint& grPaint, |
| const SkPaint& skPaint, |
| const SkMatrix& viewMatrix, |
| const char text[], size_t byteLength, |
| SkScalar x, SkScalar y, const SkIRect& clipBounds) { |
| RETURN_IF_ABANDONED |
| SkDEBUGCODE(this->validate();) |
| |
| if (!fTextContext) { |
| fTextContext = fDrawingManager->textContext(fSurfaceProps, fRenderTarget); |
| } |
| |
| fTextContext->drawText(this, fRenderTarget, clip, grPaint, skPaint, viewMatrix, |
| text, byteLength, x, y, clipBounds); |
| |
| } |
| void GrDrawContext::drawPosText(const GrClip& clip, const GrPaint& grPaint, |
| const SkPaint& skPaint, |
| const SkMatrix& viewMatrix, |
| const char text[], size_t byteLength, |
| const SkScalar pos[], int scalarsPerPosition, |
| const SkPoint& offset, const SkIRect& clipBounds) { |
| RETURN_IF_ABANDONED |
| SkDEBUGCODE(this->validate();) |
| |
| if (!fTextContext) { |
| fTextContext = fDrawingManager->textContext(fSurfaceProps, fRenderTarget); |
| } |
| |
| fTextContext->drawPosText(this, fRenderTarget, clip, grPaint, skPaint, viewMatrix, text, byteLength, |
| pos, scalarsPerPosition, offset, clipBounds); |
| |
| } |
| void GrDrawContext::drawTextBlob(const GrClip& clip, const SkPaint& skPaint, |
| const SkMatrix& viewMatrix, const SkTextBlob* blob, |
| SkScalar x, SkScalar y, |
| SkDrawFilter* filter, const SkIRect& clipBounds) { |
| RETURN_IF_ABANDONED |
| SkDEBUGCODE(this->validate();) |
| |
| if (!fTextContext) { |
| fTextContext = fDrawingManager->textContext(fSurfaceProps, fRenderTarget); |
| } |
| |
| fTextContext->drawTextBlob(this, fRenderTarget, |
| clip, skPaint, viewMatrix, blob, x, y, filter, clipBounds); |
| } |
| |
| void GrDrawContext::drawPathsFromRange(const GrPipelineBuilder* pipelineBuilder, |
| const SkMatrix& viewMatrix, |
| const SkMatrix& localMatrix, |
| GrColor color, |
| GrPathRange* range, |
| GrPathRangeDraw* draw, |
| int /*GrPathRendering::FillType*/ fill) { |
| RETURN_IF_ABANDONED |
| SkDEBUGCODE(this->validate();) |
| |
| this->getDrawTarget()->drawPathsFromRange(*pipelineBuilder, viewMatrix, localMatrix, color, |
| range, draw, (GrPathRendering::FillType) fill); |
| } |
| |
| void GrDrawContext::discard() { |
| RETURN_IF_ABANDONED |
| SkDEBUGCODE(this->validate();) |
| |
| AutoCheckFlush acf(fDrawingManager); |
| this->getDrawTarget()->discard(fRenderTarget); |
| } |
| |
| void GrDrawContext::clear(const SkIRect* rect, |
| const GrColor color, |
| bool canIgnoreRect) { |
| RETURN_IF_ABANDONED |
| SkDEBUGCODE(this->validate();) |
| |
| AutoCheckFlush acf(fDrawingManager); |
| this->getDrawTarget()->clear(rect, color, canIgnoreRect, fRenderTarget); |
| } |
| |
| |
| void GrDrawContext::drawPaint(const GrClip& clip, |
| const GrPaint& origPaint, |
| const SkMatrix& viewMatrix) { |
| RETURN_IF_ABANDONED |
| SkDEBUGCODE(this->validate();) |
| |
| // set rect to be big enough to fill the space, but not super-huge, so we |
| // don't overflow fixed-point implementations |
| SkRect r; |
| r.setLTRB(0, 0, |
| SkIntToScalar(fRenderTarget->width()), |
| SkIntToScalar(fRenderTarget->height())); |
| SkTCopyOnFirstWrite<GrPaint> paint(origPaint); |
| |
| // by definition this fills the entire clip, no need for AA |
| if (paint->isAntiAlias()) { |
| paint.writable()->setAntiAlias(false); |
| } |
| |
| bool isPerspective = viewMatrix.hasPerspective(); |
| |
| // We attempt to map r by the inverse matrix and draw that. mapRect will |
| // map the four corners and bound them with a new rect. This will not |
| // produce a correct result for some perspective matrices. |
| if (!isPerspective) { |
| SkMatrix inverse; |
| if (!viewMatrix.invert(&inverse)) { |
| SkDebugf("Could not invert matrix\n"); |
| return; |
| } |
| inverse.mapRect(&r); |
| this->drawRect(clip, *paint, viewMatrix, r); |
| } else { |
| SkMatrix localMatrix; |
| if (!viewMatrix.invert(&localMatrix)) { |
| SkDebugf("Could not invert matrix\n"); |
| return; |
| } |
| |
| AutoCheckFlush acf(fDrawingManager); |
| |
| GrPipelineBuilder pipelineBuilder(*paint, fRenderTarget, clip); |
| this->getDrawTarget()->drawNonAARect(pipelineBuilder, |
| paint->getColor(), |
| SkMatrix::I(), |
| r, |
| localMatrix); |
| } |
| } |
| |
| static inline bool rect_contains_inclusive(const SkRect& rect, const SkPoint& point) { |
| return point.fX >= rect.fLeft && point.fX <= rect.fRight && |
| point.fY >= rect.fTop && point.fY <= rect.fBottom; |
| } |
| |
| void GrDrawContext::drawRect(const GrClip& clip, |
| const GrPaint& paint, |
| const SkMatrix& viewMatrix, |
| const SkRect& rect, |
| const GrStrokeInfo* strokeInfo) { |
| RETURN_IF_ABANDONED |
| SkDEBUGCODE(this->validate();) |
| |
| if (strokeInfo && strokeInfo->isDashed()) { |
| SkPath path; |
| path.setIsVolatile(true); |
| path.addRect(rect); |
| this->drawPath(clip, paint, viewMatrix, path, *strokeInfo); |
| return; |
| } |
| |
| AutoCheckFlush acf(fDrawingManager); |
| |
| GrPipelineBuilder pipelineBuilder(paint, fRenderTarget, clip); |
| |
| SkScalar width = nullptr == strokeInfo ? -1 : strokeInfo->getWidth(); |
| |
| // Check if this is a full RT draw and can be replaced with a clear. We don't bother checking |
| // cases where the RT is fully inside a stroke. |
| if (width < 0) { |
| SkRect rtRect; |
| pipelineBuilder.getRenderTarget()->getBoundsRect(&rtRect); |
| SkRect clipSpaceRTRect = rtRect; |
| bool checkClip = GrClip::kWideOpen_ClipType != clip.clipType(); |
| if (checkClip) { |
| clipSpaceRTRect.offset(SkIntToScalar(clip.origin().fX), |
| SkIntToScalar(clip.origin().fY)); |
| } |
| // Does the clip contain the entire RT? |
| if (!checkClip || clip.quickContains(clipSpaceRTRect)) { |
| SkMatrix invM; |
| if (!viewMatrix.invert(&invM)) { |
| return; |
| } |
| // Does the rect bound the RT? |
| SkPoint srcSpaceRTQuad[4]; |
| invM.mapRectToQuad(srcSpaceRTQuad, rtRect); |
| if (rect_contains_inclusive(rect, srcSpaceRTQuad[0]) && |
| rect_contains_inclusive(rect, srcSpaceRTQuad[1]) && |
| rect_contains_inclusive(rect, srcSpaceRTQuad[2]) && |
| rect_contains_inclusive(rect, srcSpaceRTQuad[3])) { |
| // Will it blend? |
| GrColor clearColor; |
| if (paint.isConstantBlendedColor(&clearColor)) { |
| this->getDrawTarget()->clear(nullptr, clearColor, true, fRenderTarget); |
| return; |
| } |
| } |
| } |
| } |
| |
| GrColor color = paint.getColor(); |
| bool needAA = paint.isAntiAlias() && |
| !pipelineBuilder.getRenderTarget()->isUnifiedMultisampled(); |
| |
| // The fill path can handle rotation but not skew |
| // The stroke path needs the rect to remain axis aligned (no rotation or skew) |
| // None of our AA draw rect calls can handle perspective yet |
| bool canApplyAA = width >=0 ? viewMatrix.rectStaysRect() : viewMatrix.preservesRightAngles(); |
| |
| if (needAA && canApplyAA) { |
| SkASSERT(!viewMatrix.hasPerspective()); |
| SkAutoTUnref<GrDrawBatch> batch; |
| if (width >= 0) { |
| batch.reset(GrRectBatchFactory::CreateAAStroke(color, viewMatrix, rect, *strokeInfo)); |
| } else { |
| SkRect devBoundRect; |
| viewMatrix.mapRect(&devBoundRect, rect); |
| batch.reset(GrRectBatchFactory::CreateAAFill(color, viewMatrix, rect, devBoundRect)); |
| } |
| this->getDrawTarget()->drawBatch(pipelineBuilder, batch); |
| return; |
| } |
| |
| if (width >= 0) { |
| // Non-AA hairlines are snapped to pixel centers to make which pixels are hit deterministic |
| bool snapToPixelCenters = (0 == width && !fRenderTarget->isUnifiedMultisampled()); |
| SkAutoTUnref<GrDrawBatch> batch(GrRectBatchFactory::CreateNonAAStroke( |
| color, viewMatrix, rect, width, snapToPixelCenters)); |
| |
| // Depending on sub-pixel coordinates and the particular GPU, we may lose a corner of |
| // hairline rects. We jam all the vertices to pixel centers to avoid this, but not when MSAA |
| // is enabled because it can cause ugly artifacts. |
| pipelineBuilder.setState(GrPipelineBuilder::kSnapVerticesToPixelCenters_Flag, |
| snapToPixelCenters); |
| this->getDrawTarget()->drawBatch(pipelineBuilder, batch); |
| } else { |
| // filled BW rect |
| this->getDrawTarget()->drawNonAARect(pipelineBuilder, color, viewMatrix, rect); |
| } |
| } |
| |
| void GrDrawContext::fillRectToRect(const GrClip& clip, |
| const GrPaint& paint, |
| const SkMatrix& viewMatrix, |
| const SkRect& rectToDraw, |
| const SkRect& localRect) { |
| RETURN_IF_ABANDONED |
| SkDEBUGCODE(this->validate();) |
| |
| AutoCheckFlush acf(fDrawingManager); |
| |
| GrPipelineBuilder pipelineBuilder(paint, fRenderTarget, clip); |
| this->getDrawTarget()->drawNonAARect(pipelineBuilder, |
| paint.getColor(), |
| viewMatrix, |
| rectToDraw, |
| localRect); |
| } |
| |
| void GrDrawContext::fillRectWithLocalMatrix(const GrClip& clip, |
| const GrPaint& paint, |
| const SkMatrix& viewMatrix, |
| const SkRect& rectToDraw, |
| const SkMatrix& localMatrix) { |
| RETURN_IF_ABANDONED |
| SkDEBUGCODE(this->validate();) |
| |
| AutoCheckFlush acf(fDrawingManager); |
| |
| GrPipelineBuilder pipelineBuilder(paint, fRenderTarget, clip); |
| this->getDrawTarget()->drawNonAARect(pipelineBuilder, |
| paint.getColor(), |
| viewMatrix, |
| rectToDraw, |
| localMatrix); |
| } |
| |
| void GrDrawContext::drawVertices(const GrClip& clip, |
| const GrPaint& paint, |
| const SkMatrix& viewMatrix, |
| GrPrimitiveType primitiveType, |
| int vertexCount, |
| const SkPoint positions[], |
| const SkPoint texCoords[], |
| const GrColor colors[], |
| const uint16_t indices[], |
| int indexCount) { |
| RETURN_IF_ABANDONED |
| SkDEBUGCODE(this->validate();) |
| |
| AutoCheckFlush acf(fDrawingManager); |
| |
| GrPipelineBuilder pipelineBuilder(paint, fRenderTarget, clip); |
| |
| // TODO clients should give us bounds |
| SkRect bounds; |
| if (!bounds.setBoundsCheck(positions, vertexCount)) { |
| SkDebugf("drawVertices call empty bounds\n"); |
| return; |
| } |
| |
| viewMatrix.mapRect(&bounds); |
| |
| // If we don't have AA then we outset for a half pixel in each direction to account for |
| // snapping |
| if (!paint.isAntiAlias()) { |
| bounds.outset(0.5f, 0.5f); |
| } |
| |
| GrDrawVerticesBatch::Geometry geometry; |
| geometry.fColor = paint.getColor(); |
| SkAutoTUnref<GrDrawBatch> batch(GrDrawVerticesBatch::Create(geometry, primitiveType, viewMatrix, |
| positions, vertexCount, indices, |
| indexCount, colors, texCoords, |
| bounds)); |
| |
| this->getDrawTarget()->drawBatch(pipelineBuilder, batch); |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| void GrDrawContext::drawAtlas(const GrClip& clip, |
| const GrPaint& paint, |
| const SkMatrix& viewMatrix, |
| int spriteCount, |
| const SkRSXform xform[], |
| const SkRect texRect[], |
| const SkColor colors[]) { |
| RETURN_IF_ABANDONED |
| SkDEBUGCODE(this->validate();) |
| |
| AutoCheckFlush acf(fDrawingManager); |
| |
| GrPipelineBuilder pipelineBuilder(paint, fRenderTarget, clip); |
| |
| GrDrawAtlasBatch::Geometry geometry; |
| geometry.fColor = paint.getColor(); |
| SkAutoTUnref<GrDrawBatch> batch(GrDrawAtlasBatch::Create(geometry, viewMatrix, spriteCount, |
| xform, texRect, colors)); |
| |
| this->getDrawTarget()->drawBatch(pipelineBuilder, batch); |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| void GrDrawContext::drawRRect(const GrClip& clip, |
| const GrPaint& paint, |
| const SkMatrix& viewMatrix, |
| const SkRRect& rrect, |
| const GrStrokeInfo& strokeInfo) { |
| RETURN_IF_ABANDONED |
| SkDEBUGCODE(this->validate();) |
| |
| if (rrect.isEmpty()) { |
| return; |
| } |
| |
| if (strokeInfo.isDashed()) { |
| SkPath path; |
| path.setIsVolatile(true); |
| path.addRRect(rrect); |
| this->drawPath(clip, paint, viewMatrix, path, strokeInfo); |
| return; |
| } |
| |
| AutoCheckFlush acf(fDrawingManager); |
| |
| GrPipelineBuilder pipelineBuilder(paint, fRenderTarget, clip); |
| GrColor color = paint.getColor(); |
| |
| if (!GrOvalRenderer::DrawRRect(this->getDrawTarget(), |
| pipelineBuilder, |
| color, |
| viewMatrix, |
| paint.isAntiAlias(), |
| rrect, |
| strokeInfo)) { |
| SkPath path; |
| path.setIsVolatile(true); |
| path.addRRect(rrect); |
| this->internalDrawPath(&pipelineBuilder, viewMatrix, color, |
| paint.isAntiAlias(), path, strokeInfo); |
| } |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| void GrDrawContext::drawDRRect(const GrClip& clip, |
| const GrPaint& paint, |
| const SkMatrix& viewMatrix, |
| const SkRRect& outer, |
| const SkRRect& inner) { |
| RETURN_IF_ABANDONED |
| SkDEBUGCODE(this->validate();) |
| |
| if (outer.isEmpty()) { |
| return; |
| } |
| |
| AutoCheckFlush acf(fDrawingManager); |
| |
| GrPipelineBuilder pipelineBuilder(paint, fRenderTarget, clip); |
| GrColor color = paint.getColor(); |
| if (!GrOvalRenderer::DrawDRRect(this->getDrawTarget(), |
| pipelineBuilder, |
| color, |
| viewMatrix, |
| paint.isAntiAlias(), |
| outer, |
| inner)) { |
| SkPath path; |
| path.setIsVolatile(true); |
| path.addRRect(inner); |
| path.addRRect(outer); |
| path.setFillType(SkPath::kEvenOdd_FillType); |
| |
| GrStrokeInfo fillRec(SkStrokeRec::kFill_InitStyle); |
| this->internalDrawPath(&pipelineBuilder, viewMatrix, color, |
| paint.isAntiAlias(), path, fillRec); |
| } |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| void GrDrawContext::drawOval(const GrClip& clip, |
| const GrPaint& paint, |
| const SkMatrix& viewMatrix, |
| const SkRect& oval, |
| const GrStrokeInfo& strokeInfo) { |
| RETURN_IF_ABANDONED |
| SkDEBUGCODE(this->validate();) |
| |
| if (oval.isEmpty()) { |
| return; |
| } |
| |
| if (strokeInfo.isDashed()) { |
| SkPath path; |
| path.setIsVolatile(true); |
| path.addOval(oval); |
| this->drawPath(clip, paint, viewMatrix, path, strokeInfo); |
| return; |
| } |
| |
| AutoCheckFlush acf(fDrawingManager); |
| |
| GrPipelineBuilder pipelineBuilder(paint, fRenderTarget, clip); |
| GrColor color = paint.getColor(); |
| |
| if (!GrOvalRenderer::DrawOval(this->getDrawTarget(), |
| pipelineBuilder, |
| color, |
| viewMatrix, |
| paint.isAntiAlias(), |
| oval, |
| strokeInfo)) { |
| SkPath path; |
| path.setIsVolatile(true); |
| path.addOval(oval); |
| this->internalDrawPath(&pipelineBuilder, viewMatrix, color, |
| paint.isAntiAlias(), path, strokeInfo); |
| } |
| } |
| |
| // Can 'path' be drawn as a pair of filled nested rectangles? |
| static bool is_nested_rects(const SkMatrix& viewMatrix, |
| const SkPath& path, |
| const SkStrokeRec& stroke, |
| SkRect rects[2]) { |
| SkASSERT(stroke.isFillStyle()); |
| |
| if (path.isInverseFillType()) { |
| return false; |
| } |
| |
| // TODO: this restriction could be lifted if we were willing to apply |
| // the matrix to all the points individually rather than just to the rect |
| if (!viewMatrix.preservesAxisAlignment()) { |
| return false; |
| } |
| |
| SkPath::Direction dirs[2]; |
| if (!path.isNestedFillRects(rects, dirs)) { |
| return false; |
| } |
| |
| if (SkPath::kWinding_FillType == path.getFillType() && dirs[0] == dirs[1]) { |
| // The two rects need to be wound opposite to each other |
| return false; |
| } |
| |
| // Right now, nested rects where the margin is not the same width |
| // all around do not render correctly |
| const SkScalar* outer = rects[0].asScalars(); |
| const SkScalar* inner = rects[1].asScalars(); |
| |
| bool allEq = true; |
| |
| SkScalar margin = SkScalarAbs(outer[0] - inner[0]); |
| bool allGoE1 = margin >= SK_Scalar1; |
| |
| for (int i = 1; i < 4; ++i) { |
| SkScalar temp = SkScalarAbs(outer[i] - inner[i]); |
| if (temp < SK_Scalar1) { |
| allGoE1 = false; |
| } |
| if (!SkScalarNearlyEqual(margin, temp)) { |
| allEq = false; |
| } |
| } |
| |
| return allEq || allGoE1; |
| } |
| |
| void GrDrawContext::drawBatch(const GrClip& clip, |
| const GrPaint& paint, GrDrawBatch* batch) { |
| RETURN_IF_ABANDONED |
| SkDEBUGCODE(this->validate();) |
| |
| AutoCheckFlush acf(fDrawingManager); |
| |
| GrPipelineBuilder pipelineBuilder(paint, fRenderTarget, clip); |
| this->getDrawTarget()->drawBatch(pipelineBuilder, batch); |
| } |
| |
| void GrDrawContext::drawPath(const GrClip& clip, |
| const GrPaint& paint, |
| const SkMatrix& viewMatrix, |
| const SkPath& path, |
| const GrStrokeInfo& strokeInfo) { |
| RETURN_IF_ABANDONED |
| SkDEBUGCODE(this->validate();) |
| |
| if (path.isEmpty()) { |
| if (path.isInverseFillType()) { |
| this->drawPaint(clip, paint, viewMatrix); |
| } |
| return; |
| } |
| |
| GrColor color = paint.getColor(); |
| |
| // Note that internalDrawPath may sw-rasterize the path into a scratch texture. |
| // Scratch textures can be recycled after they are returned to the texture |
| // cache. This presents a potential hazard for buffered drawing. However, |
| // the writePixels that uploads to the scratch will perform a flush so we're |
| // OK. |
| AutoCheckFlush acf(fDrawingManager); |
| |
| GrPipelineBuilder pipelineBuilder(paint, fRenderTarget, clip); |
| if (!strokeInfo.isDashed()) { |
| bool useCoverageAA = paint.isAntiAlias() && |
| !pipelineBuilder.getRenderTarget()->isUnifiedMultisampled(); |
| |
| if (useCoverageAA && strokeInfo.getWidth() < 0 && !path.isConvex()) { |
| // Concave AA paths are expensive - try to avoid them for special cases |
| SkRect rects[2]; |
| |
| if (is_nested_rects(viewMatrix, path, strokeInfo, rects)) { |
| SkAutoTUnref<GrDrawBatch> batch(GrRectBatchFactory::CreateAAFillNestedRects( |
| color, viewMatrix, rects)); |
| this->getDrawTarget()->drawBatch(pipelineBuilder, batch); |
| return; |
| } |
| } |
| SkRect ovalRect; |
| bool isOval = path.isOval(&ovalRect); |
| |
| if (isOval && !path.isInverseFillType()) { |
| if (GrOvalRenderer::DrawOval(this->getDrawTarget(), |
| pipelineBuilder, |
| color, |
| viewMatrix, |
| paint.isAntiAlias(), |
| ovalRect, |
| strokeInfo)) { |
| return; |
| } |
| } |
| } |
| this->internalDrawPath(&pipelineBuilder, viewMatrix, color, |
| paint.isAntiAlias(), path, strokeInfo); |
| } |
| |
| void GrDrawContext::internalDrawPath(GrPipelineBuilder* pipelineBuilder, |
| const SkMatrix& viewMatrix, |
| GrColor color, |
| bool useAA, |
| const SkPath& path, |
| const GrStrokeInfo& strokeInfo) { |
| RETURN_IF_ABANDONED |
| SkASSERT(!path.isEmpty()); |
| |
| // An Assumption here is that path renderer would use some form of tweaking |
| // the src color (either the input alpha or in the frag shader) to implement |
| // aa. If we have some future driver-mojo path AA that can do the right |
| // thing WRT to the blend then we'll need some query on the PR. |
| bool useCoverageAA = useAA && |
| !pipelineBuilder->getRenderTarget()->isUnifiedMultisampled(); |
| bool isStencilDisabled = pipelineBuilder->getStencil().isDisabled(); |
| bool isStencilBufferMSAA = pipelineBuilder->getRenderTarget()->isStencilBufferMultisampled(); |
| |
| const GrPathRendererChain::DrawType type = |
| useCoverageAA ? GrPathRendererChain::kColorAntiAlias_DrawType |
| : GrPathRendererChain::kColor_DrawType; |
| |
| const SkPath* pathPtr = &path; |
| SkTLazy<SkPath> tmpPath; |
| const GrStrokeInfo* strokeInfoPtr = &strokeInfo; |
| |
| GrPathRenderer::CanDrawPathArgs canDrawArgs; |
| canDrawArgs.fShaderCaps = fDrawingManager->getContext()->caps()->shaderCaps(); |
| canDrawArgs.fViewMatrix = &viewMatrix; |
| canDrawArgs.fPath = pathPtr; |
| canDrawArgs.fStroke = strokeInfoPtr; |
| canDrawArgs.fAntiAlias = useCoverageAA; |
| canDrawArgs.fIsStencilDisabled = isStencilDisabled; |
| canDrawArgs.fIsStencilBufferMSAA = isStencilBufferMSAA; |
| |
| // Try a 1st time without stroking the path and without allowing the SW renderer |
| GrPathRenderer* pr = fDrawingManager->getPathRenderer(canDrawArgs, false, type); |
| |
| GrStrokeInfo dashlessStrokeInfo(strokeInfo, false); |
| if (nullptr == pr && strokeInfo.isDashed()) { |
| // It didn't work above, so try again with dashed stroke converted to a dashless stroke. |
| if (!strokeInfo.applyDashToPath(tmpPath.init(), &dashlessStrokeInfo, *pathPtr)) { |
| return; |
| } |
| pathPtr = tmpPath.get(); |
| if (pathPtr->isEmpty()) { |
| return; |
| } |
| strokeInfoPtr = &dashlessStrokeInfo; |
| |
| canDrawArgs.fPath = pathPtr; |
| canDrawArgs.fStroke = strokeInfoPtr; |
| |
| pr = fDrawingManager->getPathRenderer(canDrawArgs, false, type); |
| } |
| |
| if (nullptr == pr) { |
| if (!GrPathRenderer::IsStrokeHairlineOrEquivalent(*strokeInfoPtr, viewMatrix, nullptr) && |
| !strokeInfoPtr->isFillStyle()) { |
| // It didn't work above, so try again with stroke converted to a fill. |
| if (!tmpPath.isValid()) { |
| tmpPath.init(); |
| } |
| dashlessStrokeInfo.setResScale(SkScalarAbs(viewMatrix.getMaxScale())); |
| if (!dashlessStrokeInfo.applyToPath(tmpPath.get(), *pathPtr)) { |
| return; |
| } |
| pathPtr = tmpPath.get(); |
| if (pathPtr->isEmpty()) { |
| return; |
| } |
| dashlessStrokeInfo.setFillStyle(); |
| strokeInfoPtr = &dashlessStrokeInfo; |
| } |
| |
| canDrawArgs.fPath = pathPtr; |
| canDrawArgs.fStroke = strokeInfoPtr; |
| |
| // This time, allow SW renderer |
| pr = fDrawingManager->getPathRenderer(canDrawArgs, true, type); |
| } |
| |
| if (nullptr == pr) { |
| #ifdef SK_DEBUG |
| SkDebugf("Unable to find path renderer compatible with path.\n"); |
| #endif |
| return; |
| } |
| |
| GrPathRenderer::DrawPathArgs args; |
| args.fTarget = this->getDrawTarget(); |
| args.fResourceProvider = fDrawingManager->getContext()->resourceProvider(); |
| args.fPipelineBuilder = pipelineBuilder; |
| args.fColor = color; |
| args.fViewMatrix = &viewMatrix; |
| args.fPath = pathPtr; |
| args.fStroke = strokeInfoPtr; |
| args.fAntiAlias = useCoverageAA; |
| pr->drawPath(args); |
| } |
| |
| void GrDrawContext::drawBatch(GrPipelineBuilder* pipelineBuilder, GrDrawBatch* batch) { |
| RETURN_IF_ABANDONED |
| SkDEBUGCODE(this->validate();) |
| |
| this->getDrawTarget()->drawBatch(*pipelineBuilder, batch); |
| } |