Index: src/gpu/batches/GrPLSPathRenderer.cpp |
diff --git a/src/gpu/batches/GrPLSPathRenderer.cpp b/src/gpu/batches/GrPLSPathRenderer.cpp |
new file mode 100644 |
index 0000000000000000000000000000000000000000..1f61192a669facd139f8973de197c0602ef83d4e |
--- /dev/null |
+++ b/src/gpu/batches/GrPLSPathRenderer.cpp |
@@ -0,0 +1,1012 @@ |
+/* |
+ * 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 "GrPLSPathRenderer.h" |
+ |
+#include "SkChunkAlloc.h" |
+#include "SkGeometry.h" |
+#include "SkPathPriv.h" |
+#include "SkString.h" |
+#include "SkTSort.h" |
+#include "SkTraceEvent.h" |
+#include "GrBatchFlushState.h" |
+#include "GrBatchTest.h" |
+#include "GrCaps.h" |
+#include "GrContext.h" |
+#include "GrDefaultGeoProcFactory.h" |
+#include "GrPLSGeometryProcessor.h" |
+#include "GrInvariantOutput.h" |
+#include "GrPathUtils.h" |
+#include "GrProcessor.h" |
+#include "GrPipelineBuilder.h" |
+#include "GrStrokeInfo.h" |
+#include "GrTessellator.h" |
+#include "batches/GrVertexBatch.h" |
+#include "glsl/GrGLSLGeometryProcessor.h" |
+#include "gl/builders/GrGLProgramBuilder.h" |
+#include "glsl/GrGLSLPLSPathRendering.h" |
+ |
+GrPLSPathRenderer::GrPLSPathRenderer() { |
+} |
+ |
+struct PLSVertex { |
+ SkPoint fPos; |
+ // for triangles, these are the three triangle vertices |
+ // for quads, vert1 is the texture UV coords, and vert2 and vert3 are the line segment |
+ // comprising the flat edge of the quad |
+ SkPoint fVert1; |
+ SkPoint fVert2; |
+ SkPoint fVert3; |
+ int fWinding; |
+}; |
+typedef SkTArray<PLSVertex, true> PLSVertices; |
+ |
+typedef SkTArray<SkPoint, true> FinishVertices; |
+ |
+static const float kCubicTolerance = 0.5f; |
+static const float kConicTolerance = 0.5f; |
+ |
+static const float kBloatSize = 1.0f; |
+ |
+static const float kBloatLimit = 640000.0f; |
+ |
+#define kQuadNumVertices 5 |
+static void add_quad(SkPoint pts[3], PLSVertices& vertices) { |
+ SkPoint normal = SkPoint::Make(pts[0].fY - pts[2].fY, |
+ pts[2].fX - pts[0].fX); |
+ normal.setLength(kBloatSize); |
+ SkScalar cross = (pts[1] - pts[0]).cross(pts[2] - pts[0]); |
+ if (cross < 0) { |
+ normal = -normal; |
+ } |
+ PLSVertex quad[kQuadNumVertices]; |
+ quad[0].fPos = pts[0] + normal; |
+ quad[1].fPos = pts[0] - normal; |
+ quad[2].fPos = pts[1] - normal; |
+ quad[3].fPos = pts[2] - normal; |
+ quad[4].fPos = pts[2] + normal; |
+ for (int i = 0; i < kQuadNumVertices; i++) { |
+ quad[i].fWinding = cross < 0 ? 1 : -1; |
+ if (cross > 0.0) { |
+ quad[i].fVert2 = pts[0]; |
+ quad[i].fVert3 = pts[2]; |
+ } |
+ else { |
+ quad[i].fVert2 = pts[2]; |
+ quad[i].fVert3 = pts[0]; |
+ } |
+ } |
+ GrPathUtils::QuadUVMatrix DevToUV(pts); |
+ DevToUV.apply<kQuadNumVertices, sizeof(PLSVertex), sizeof(SkPoint)>(quad); |
+ for (int i = 2; i < kQuadNumVertices; i++) { |
+ vertices.push_back(quad[0]); |
+ vertices.push_back(quad[i - 1]); |
+ vertices.push_back(quad[i]); |
+ } |
+} |
+ |
+/* Used by bloat_tri; outsets a single point. */ |
+static bool outset(SkPoint* p1, SkPoint line1, SkPoint line2) { |
+ // rotate the two line vectors 90 degrees to form the normals, and compute |
+ // the dot product of the normals |
+ SkScalar dotProd = line1.fY * line2.fY + line1.fX * line2.fX; |
+ SkScalar lengthSq = 1.0f / ((1.0f - dotProd) / 2.0f); |
+ if (lengthSq > kBloatLimit) { |
+ return false; |
+ } |
+ SkPoint bisector = line1 + line2; |
+ bisector.setLength(SkScalarSqrt(lengthSq) * kBloatSize); |
+ *p1 += bisector; |
+ return true; |
+} |
+ |
+/* Bloats a triangle so as to create a border kBloatSize pixels wide all around it. */ |
+static bool bloat_tri(SkPoint pts[3]) { |
+ SkPoint line1 = pts[0] - pts[1]; |
+ line1.normalize(); |
+ SkPoint line2 = pts[0] - pts[2]; |
+ line2.normalize(); |
+ SkPoint line3 = pts[1] - pts[2]; |
+ line3.normalize(); |
+ |
+ SkPoint result[3]; |
+ result[0] = pts[0]; |
+ if (!outset(&result[0], line1, line2)) { |
+ return false; |
+ } |
+ result[1] = pts[1]; |
+ if (!outset(&result[1], -line1, line3)) { |
+ return false; |
+ } |
+ result[2] = pts[2]; |
+ if (!outset(&result[2], -line3, -line2)) { |
+ return false; |
+ } |
+ pts[0] = result[0]; |
+ pts[1] = result[1]; |
+ pts[2] = result[2]; |
+ return true; |
+} |
+ |
+static bool get_geometry(const SkPath& path, const SkMatrix& m, PLSVertices& triVertices, |
+ PLSVertices& quadVertices, GrResourceProvider* resourceProvider, |
+ SkRect bounds) { |
+ SkScalar screenSpaceTol = GrPathUtils::kDefaultTolerance; |
+ SkScalar tol = GrPathUtils::scaleToleranceToSrc(screenSpaceTol, m, bounds); |
+ int contourCnt; |
+ int maxPts = GrPathUtils::worstCasePointCount(path, &contourCnt, tol); |
+ if (maxPts <= 0) { |
+ return 0; |
+ } |
+ SkPath linesOnlyPath; |
+ linesOnlyPath.setFillType(path.getFillType()); |
+ SkSTArray<15, SkPoint, true> quadPoints; |
+ SkPathPriv::FirstDirection dir = SkPathPriv::FirstDirection::kUnknown_FirstDirection; |
+ SkPath::Iter iter(path, true); |
+ bool done = false; |
+ while (!done) { |
+ SkPoint pts[4]; |
+ SkPath::Verb verb = iter.next(pts); |
+ switch (verb) { |
+ case SkPath::kMove_Verb: |
+ SkASSERT(quadPoints.count() % 3 == 0); |
+ for (int i = 0; i < quadPoints.count(); i += 3) { |
+ add_quad(&quadPoints[i], quadVertices); |
+ } |
+ quadPoints.reset(); |
+ m.mapPoints(&pts[0], 1); |
+ linesOnlyPath.moveTo(pts[0]); |
+ break; |
+ case SkPath::kLine_Verb: |
+ m.mapPoints(&pts[1], 1); |
+ linesOnlyPath.lineTo(pts[1]); |
+ break; |
+ case SkPath::kQuad_Verb: |
+ m.mapPoints(pts, 3); |
+ linesOnlyPath.lineTo(pts[2]); |
+ quadPoints.push_back(pts[0]); |
+ quadPoints.push_back(pts[1]); |
+ quadPoints.push_back(pts[2]); |
+ break; |
+ case SkPath::kCubic_Verb: { |
+ m.mapPoints(pts, 4); |
+ SkSTArray<15, SkPoint, true> quads; |
+ GrPathUtils::convertCubicToQuads(pts, kCubicTolerance, false, dir, &quads); |
+ int count = quads.count(); |
+ for (int q = 0; q < count; q += 3) { |
+ linesOnlyPath.lineTo(quads[q + 2]); |
+ quadPoints.push_back(quads[q]); |
+ quadPoints.push_back(quads[q + 1]); |
+ quadPoints.push_back(quads[q + 2]); |
+ } |
+ break; |
+ } |
+ case SkPath::kConic_Verb: { |
+ m.mapPoints(pts, 3); |
+ SkScalar weight = iter.conicWeight(); |
+ SkAutoConicToQuads converter; |
+ const SkPoint* quads = converter.computeQuads(pts, weight, kConicTolerance); |
+ int count = converter.countQuads(); |
+ for (int i = 0; i < count; ++i) { |
+ linesOnlyPath.lineTo(quads[2 * i + 2]); |
+ quadPoints.push_back(quads[2 * i]); |
+ quadPoints.push_back(quads[2 * i + 1]); |
+ quadPoints.push_back(quads[2 * i + 2]); |
+ } |
+ break; |
+ } |
+ case SkPath::kClose_Verb: |
+ linesOnlyPath.close(); |
+ break; |
+ case SkPath::kDone_Verb: |
+ done = true; |
+ break; |
+ default: SkASSERT(false); |
+ } |
+ } |
+ SkASSERT(quadPoints.count() % 3 == 0); |
+ for (int i = 0; i < quadPoints.count(); i += 3) { |
+ add_quad(&quadPoints[i], quadVertices); |
+ } |
+ |
+ static const GrUniqueKey::Domain kDomain = GrUniqueKey::GenerateDomain(); |
+ GrUniqueKey key; |
+ GrUniqueKey::Builder builder(&key, kDomain, 2); |
+ builder[0] = path.getGenerationID(); |
+ builder[1] = path.getFillType(); |
+ builder.finish(); |
+ GrTessellator::WindingVertex* windingVertices; |
+ int triVertexCount = GrTessellator::PathToVertices(linesOnlyPath, 0, bounds, &windingVertices); |
+ if (triVertexCount > 0) { |
+ for (int i = 0; i < triVertexCount; i += 3) { |
+ SkPoint p1 = windingVertices[i].fPos; |
+ SkPoint p2 = windingVertices[i + 1].fPos; |
+ SkPoint p3 = windingVertices[i + 2].fPos; |
+ int winding = windingVertices[i].fWinding; |
+ SkASSERT(windingVertices[i + 1].fWinding == winding); |
+ SkASSERT(windingVertices[i + 2].fWinding == winding); |
+ SkScalar cross = (p2 - p1).cross(p3 - p1); |
+ SkPoint bloated[3] = { p1, p2, p3 }; |
+ if (cross < 0.0f) { |
+ SkTSwap(p1, p3); |
+ } |
+ if (bloat_tri(bloated)) { |
+ triVertices.push_back({ bloated[0], p1, p2, p3, winding }); |
+ triVertices.push_back({ bloated[1], p1, p2, p3, winding }); |
+ triVertices.push_back({ bloated[2], p1, p2, p3, winding }); |
+ } |
+ else { |
+ SkScalar minX = SkTMin(p1.fX, SkTMin(p2.fX, p3.fX)) - 1.0f; |
+ SkScalar minY = SkTMin(p1.fY, SkTMin(p2.fY, p3.fY)) - 1.0f; |
+ SkScalar maxX = SkTMax(p1.fX, SkTMax(p2.fX, p3.fX)) + 1.0f; |
+ SkScalar maxY = SkTMax(p1.fY, SkTMax(p2.fY, p3.fY)) + 1.0f; |
+ triVertices.push_back({ { minX, minY }, p1, p2, p3, winding }); |
+ triVertices.push_back({ { maxX, minY }, p1, p2, p3, winding }); |
+ triVertices.push_back({ { minX, maxY }, p1, p2, p3, winding }); |
+ triVertices.push_back({ { maxX, minY }, p1, p2, p3, winding }); |
+ triVertices.push_back({ { maxX, maxY }, p1, p2, p3, winding }); |
+ triVertices.push_back({ { minX, maxY }, p1, p2, p3, winding }); |
+ } |
+ } |
+ delete[] windingVertices; |
+ } |
+ return triVertexCount > 0 || quadVertices.count() > 0; |
+} |
+ |
+class PLSAATriangleEffect : public GrPLSGeometryProcessor { |
+public: |
+ |
+ static GrPLSGeometryProcessor* Create(const SkMatrix& localMatrix, |
+ bool usesLocalCoords) { |
+ return new PLSAATriangleEffect(localMatrix, usesLocalCoords); |
+ } |
+ |
+ virtual ~PLSAATriangleEffect() {} |
+ |
+ const char* name() const override { return "PLSAATriangle"; } |
+ |
+ const Attribute* inPosition() const { return fInPosition; } |
+ const Attribute* inVertex1() const { return fInVertex1; } |
+ const Attribute* inVertex2() const { return fInVertex2; } |
+ const Attribute* inVertex3() const { return fInVertex3; } |
+ const Attribute* inWindings() const { return fInWindings; } |
+ const SkMatrix& localMatrix() const { return fLocalMatrix; } |
+ bool usesLocalCoords() const { return fUsesLocalCoords; } |
+ |
+ class GLSLProcessor : public GrGLSLGeometryProcessor { |
+ public: |
+ GLSLProcessor(const GrGeometryProcessor&) {} |
+ |
+ void onEmitCode(EmitArgs& args, GrGPArgs* gpArgs) override { |
+ const PLSAATriangleEffect& te = args.fGP.cast<PLSAATriangleEffect>(); |
+ GrGLSLVertexBuilder* vsBuilder = args.fVertBuilder; |
+ GrGLSLVaryingHandler* varyingHandler = args.fVaryingHandler; |
+ GrGLSLUniformHandler* uniformHandler = args.fUniformHandler; |
+ |
+ varyingHandler->emitAttributes(te); |
+ |
+ this->setupPosition(vsBuilder, gpArgs, te.inPosition()->fName); |
+ |
+ GrGLSLVertToFrag v1(kVec2f_GrSLType); |
+ varyingHandler->addVarying("Vertex1", &v1, kHigh_GrSLPrecision); |
+ vsBuilder->codeAppendf("%s = vec2(%s.x, %s.y);", |
+ v1.vsOut(), |
+ te.inVertex1()->fName, |
+ te.inVertex1()->fName); |
+ |
+ GrGLSLVertToFrag v2(kVec2f_GrSLType); |
+ varyingHandler->addVarying("Vertex2", &v2, kHigh_GrSLPrecision); |
+ vsBuilder->codeAppendf("%s = vec2(%s.x, %s.y);", |
+ v2.vsOut(), |
+ te.inVertex2()->fName, |
+ te.inVertex2()->fName); |
+ |
+ GrGLSLVertToFrag v3(kVec2f_GrSLType); |
+ varyingHandler->addVarying("Vertex3", &v3, kHigh_GrSLPrecision); |
+ vsBuilder->codeAppendf("%s = vec2(%s.x, %s.y);", |
+ v3.vsOut(), |
+ te.inVertex3()->fName, |
+ te.inVertex3()->fName); |
+ |
+ GrGLSLVertToFrag delta1(kVec2f_GrSLType); |
+ varyingHandler->addVarying("delta1", &delta1, kHigh_GrSLPrecision); |
+ vsBuilder->codeAppendf("%s = vec2(%s.x - %s.x, %s.y - %s.y) * 0.5;", |
+ delta1.vsOut(), v1.vsOut(), v2.vsOut(), v2.vsOut(), v1.vsOut()); |
+ |
+ GrGLSLVertToFrag delta2(kVec2f_GrSLType); |
+ varyingHandler->addVarying("delta2", &delta2, kHigh_GrSLPrecision); |
+ vsBuilder->codeAppendf("%s = vec2(%s.x - %s.x, %s.y - %s.y) * 0.5;", |
+ delta2.vsOut(), v2.vsOut(), v3.vsOut(), v3.vsOut(), v2.vsOut()); |
+ |
+ GrGLSLVertToFrag delta3(kVec2f_GrSLType); |
+ varyingHandler->addVarying("delta3", &delta3, kHigh_GrSLPrecision); |
+ vsBuilder->codeAppendf("%s = vec2(%s.x - %s.x, %s.y - %s.y) * 0.5;", |
+ delta3.vsOut(), v3.vsOut(), v1.vsOut(), v1.vsOut(), v3.vsOut()); |
+ |
+ GrGLSLVertToFrag windings(kInt_GrSLType); |
+ varyingHandler->addVarying("windings", &windings, kLow_GrSLPrecision); |
+ vsBuilder->codeAppendf("%s = %s;", |
+ windings.vsOut(), te.inWindings()->fName); |
+ |
+ // emit transforms |
+ this->emitTransforms(vsBuilder, varyingHandler, uniformHandler, gpArgs->fPositionVar, |
+ te.inPosition()->fName, te.localMatrix(), args.fTransformsIn, |
+ args.fTransformsOut); |
+ |
+ GrGLSLFragmentBuilder* fsBuilder = args.fFragBuilder; |
+ SkAssertResult(fsBuilder->enableFeature( |
+ GrGLSLFragmentShaderBuilder::kPixelLocalStorage_GLSLFeature)); |
+ SkAssertResult(fsBuilder->enableFeature( |
+ GrGLSLFragmentShaderBuilder::kStandardDerivatives_GLSLFeature)); |
+ fsBuilder->declAppendf(GR_GL_PLS_PATH_DATA_DECL); |
+ // Compute four subsamples, each shifted a quarter pixel along x and y from |
+ // gl_FragCoord. The oriented box positioning of the subsamples is of course not |
+ // optimal, but it greatly simplifies the math and this simplification is necessary for |
+ // performance reasons. |
+ fsBuilder->codeAppendf("highp vec2 firstSample = %s.xy - vec2(0.25);", |
+ fsBuilder->fragmentPosition()); |
+ fsBuilder->codeAppendf("highp vec2 delta1 = %s;", delta1.fsIn()); |
+ fsBuilder->codeAppendf("highp vec2 delta2 = %s;", delta2.fsIn()); |
+ fsBuilder->codeAppendf("highp vec2 delta3 = %s;", delta3.fsIn()); |
+ // Check whether first sample is inside the triangle by computing three dot products. If |
+ // all are < 0, we're inside. The first vector in each case is half of what it is |
+ // "supposed" to be, because we re-use them later as adjustment factors for which half |
+ // is the correct value, so we multiply the dots by two to compensate. |
+ fsBuilder->codeAppendf("highp float d1 = dot(delta1, (firstSample - %s).yx) * 2.0;", |
+ v1.fsIn()); |
+ fsBuilder->codeAppendf("highp float d2 = dot(delta2, (firstSample - %s).yx) * 2.0;", |
+ v2.fsIn()); |
+ fsBuilder->codeAppendf("highp float d3 = dot(delta3, (firstSample - %s).yx) * 2.0;", |
+ v3.fsIn()); |
+ fsBuilder->codeAppend("highp float dmax = max(d1, max(d2, d3));"); |
+ fsBuilder->codeAppendf("pls.windings[0] += (dmax <= 0.0) ? %s : 0;", windings.fsIn()); |
+ // for subsequent samples, we don't recalculate the entire dot product -- just adjust it |
+ // to the value it would have if we did recompute it. |
+ fsBuilder->codeAppend("d1 += delta1.x;"); |
+ fsBuilder->codeAppend("d2 += delta2.x;"); |
+ fsBuilder->codeAppend("d3 += delta3.x;"); |
+ fsBuilder->codeAppend("dmax = max(d1, max(d2, d3));"); |
+ fsBuilder->codeAppendf("pls.windings[1] += (dmax <= 0.0) ? %s : 0;", windings.fsIn()); |
+ fsBuilder->codeAppend("d1 += delta1.y;"); |
+ fsBuilder->codeAppend("d2 += delta2.y;"); |
+ fsBuilder->codeAppend("d3 += delta3.y;"); |
+ fsBuilder->codeAppend("dmax = max(d1, max(d2, d3));"); |
+ fsBuilder->codeAppendf("pls.windings[2] += (dmax <= 0.0) ? %s : 0;", windings.fsIn()); |
+ fsBuilder->codeAppend("d1 -= delta1.x;"); |
+ fsBuilder->codeAppend("d2 -= delta2.x;"); |
+ fsBuilder->codeAppend("d3 -= delta3.x;"); |
+ fsBuilder->codeAppend("dmax = max(d1, max(d2, d3));"); |
+ fsBuilder->codeAppendf("pls.windings[3] += (dmax <= 0.0) ? %s : 0;", windings.fsIn()); |
+ } |
+ |
+ static inline void GenKey(const GrGeometryProcessor& gp, |
+ const GrGLSLCaps&, |
+ GrProcessorKeyBuilder* b) { |
+ const PLSAATriangleEffect& te = gp.cast<PLSAATriangleEffect>(); |
+ uint32_t key = 0; |
+ key |= te.localMatrix().hasPerspective() ? 0x1 : 0x0; |
+ b->add32(key); |
+ } |
+ |
+ virtual void setData(const GrGLSLProgramDataManager& pdman, |
+ const GrPrimitiveProcessor& gp) override { |
+ } |
+ |
+ void setTransformData(const GrPrimitiveProcessor& primProc, |
+ const GrGLSLProgramDataManager& pdman, |
+ int index, |
+ const SkTArray<const GrCoordTransform*, true>& transforms) override { |
+ this->setTransformDataHelper<PLSAATriangleEffect>(primProc, pdman, index, transforms); |
+ } |
+ |
+ private: |
+ typedef GrGLSLGeometryProcessor INHERITED; |
+ }; |
+ |
+ virtual void getGLSLProcessorKey(const GrGLSLCaps& caps, |
+ GrProcessorKeyBuilder* b) const override { |
+ GLSLProcessor::GenKey(*this, caps, b); |
+ } |
+ |
+ virtual GrGLSLPrimitiveProcessor* createGLSLInstance(const GrGLSLCaps&) const override { |
+ return new GLSLProcessor(*this); |
+ } |
+ |
+private: |
+ PLSAATriangleEffect(const SkMatrix& localMatrix, bool usesLocalCoords) |
+ : fLocalMatrix(localMatrix) |
+ , fUsesLocalCoords(usesLocalCoords) { |
+ this->initClassID<PLSAATriangleEffect>(); |
+ fInPosition = &this->addVertexAttrib(Attribute("inPosition", kVec2f_GrVertexAttribType, |
+ kHigh_GrSLPrecision)); |
+ fInVertex1 = &this->addVertexAttrib(Attribute("inVertex1", kVec2f_GrVertexAttribType, |
+ kHigh_GrSLPrecision)); |
+ fInVertex2 = &this->addVertexAttrib(Attribute("inVertex2", kVec2f_GrVertexAttribType, |
+ kHigh_GrSLPrecision)); |
+ fInVertex3 = &this->addVertexAttrib(Attribute("inVertex3", kVec2f_GrVertexAttribType, |
+ kHigh_GrSLPrecision)); |
+ fInWindings = &this->addVertexAttrib(Attribute("inWindings", kInt_GrVertexAttribType, |
+ kLow_GrSLPrecision)); |
+ this->setWillReadFragmentPosition(); |
+ } |
+ |
+ const Attribute* fInPosition; |
+ const Attribute* fInVertex1; |
+ const Attribute* fInVertex2; |
+ const Attribute* fInVertex3; |
+ const Attribute* fInWindings; |
+ SkMatrix fLocalMatrix; |
+ bool fUsesLocalCoords; |
+ |
+ GR_DECLARE_GEOMETRY_PROCESSOR_TEST; |
+ |
+ typedef GrGeometryProcessor INHERITED; |
+}; |
+ |
+/////////////////////////////////////////////////////////////////////////////// |
+ |
+/* |
+ * Quadratic specified by 0=u^2-v canonical coords. u and v are the first |
+ * two components of the vertex attribute. Coverage is based on signed |
+ * distance with negative being inside, positive outside. The edge is specified in |
+ * window space (y-down). If either the third or fourth component of the interpolated |
+ * vertex coord is > 0 then the pixel is considered outside the edge. This is used to |
+ * attempt to trim to a portion of the infinite quad. |
+ * Requires shader derivative instruction support. |
+ */ |
+ |
+class PLSQuadEdgeEffect : public GrPLSGeometryProcessor { |
+public: |
+ |
+ static GrPLSGeometryProcessor* Create(const SkMatrix& localMatrix, |
+ bool usesLocalCoords) { |
+ return new PLSQuadEdgeEffect(localMatrix, usesLocalCoords); |
+ } |
+ |
+ virtual ~PLSQuadEdgeEffect() {} |
+ |
+ const char* name() const override { return "PLSQuadEdge"; } |
+ |
+ const Attribute* inPosition() const { return fInPosition; } |
+ const Attribute* inUV() const { return fInUV; } |
+ const Attribute* inEndpoint1() const { return fInEndpoint1; } |
+ const Attribute* inEndpoint2() const { return fInEndpoint2; } |
+ const Attribute* inWindings() const { return fInWindings; } |
+ const SkMatrix& localMatrix() const { return fLocalMatrix; } |
+ bool usesLocalCoords() const { return fUsesLocalCoords; } |
+ |
+ class GLSLProcessor : public GrGLSLGeometryProcessor { |
+ public: |
+ GLSLProcessor(const GrGeometryProcessor&) {} |
+ |
+ void onEmitCode(EmitArgs& args, GrGPArgs* gpArgs) override { |
+ const PLSQuadEdgeEffect& qe = args.fGP.cast<PLSQuadEdgeEffect>(); |
+ GrGLSLVertexBuilder* vsBuilder = args.fVertBuilder; |
+ GrGLSLVaryingHandler* varyingHandler = args.fVaryingHandler; |
+ GrGLSLUniformHandler* uniformHandler = args.fUniformHandler; |
+ |
+ // emit attributes |
+ varyingHandler->emitAttributes(qe); |
+ |
+ GrGLSLVertToFrag uv(kVec2f_GrSLType); |
+ varyingHandler->addVarying("uv", &uv, kHigh_GrSLPrecision); |
+ vsBuilder->codeAppendf("%s = %s;", uv.vsOut(), qe.inUV()->fName); |
+ |
+ GrGLSLVertToFrag ep1(kVec2f_GrSLType); |
+ varyingHandler->addVarying("endpoint1", &ep1, kHigh_GrSLPrecision); |
+ vsBuilder->codeAppendf("%s = vec2(%s.x, %s.y);", ep1.vsOut(), |
+ qe.inEndpoint1()->fName, qe.inEndpoint1()->fName); |
+ |
+ GrGLSLVertToFrag ep2(kVec2f_GrSLType); |
+ varyingHandler->addVarying("endpoint2", &ep2, kHigh_GrSLPrecision); |
+ vsBuilder->codeAppendf("%s = vec2(%s.x, %s.y);", ep2.vsOut(), |
+ qe.inEndpoint2()->fName, qe.inEndpoint2()->fName); |
+ |
+ GrGLSLVertToFrag delta(kVec2f_GrSLType); |
+ varyingHandler->addVarying("delta", &delta, kHigh_GrSLPrecision); |
+ vsBuilder->codeAppendf("%s = vec2(%s.x - %s.x, %s.y - %s.y) * 0.5;", |
+ delta.vsOut(), ep1.vsOut(), ep2.vsOut(), ep2.vsOut(), |
+ ep1.vsOut()); |
+ |
+ GrGLSLVertToFrag windings(kInt_GrSLType); |
+ varyingHandler->addVarying("windings", &windings, kLow_GrSLPrecision); |
+ vsBuilder->codeAppendf("%s = %s;", |
+ windings.vsOut(), qe.inWindings()->fName); |
+ |
+ // Setup position |
+ this->setupPosition(vsBuilder, gpArgs, qe.inPosition()->fName); |
+ |
+ // emit transforms |
+ this->emitTransforms(vsBuilder, varyingHandler, uniformHandler, gpArgs->fPositionVar, |
+ qe.inPosition()->fName, qe.localMatrix(), args.fTransformsIn, |
+ args.fTransformsOut); |
+ |
+ GrGLSLFragmentBuilder* fsBuilder = args.fFragBuilder; |
+ SkAssertResult(fsBuilder->enableFeature( |
+ GrGLSLFragmentShaderBuilder::kPixelLocalStorage_GLSLFeature)); |
+ SkAssertResult(fsBuilder->enableFeature( |
+ GrGLSLFragmentShaderBuilder::kStandardDerivatives_GLSLFeature)); |
+ static const int QUAD_ARGS = 2; |
+ GrGLSLShaderVar inQuadArgs[QUAD_ARGS] = { |
+ GrGLSLShaderVar("dot", kFloat_GrSLType, 0, kHigh_GrSLPrecision), |
+ GrGLSLShaderVar("uv", kVec2f_GrSLType, 0, kHigh_GrSLPrecision) |
+ }; |
+ SkString inQuadName; |
+ |
+ const char* inQuadCode = "if (uv.x * uv.x <= uv.y) {" |
+ "return dot >= 0.0;" |
+ "} else {" |
+ "return false;" |
+ "}"; |
+ fsBuilder->emitFunction(kBool_GrSLType, "in_quad", QUAD_ARGS, inQuadArgs, inQuadCode, |
+ &inQuadName); |
+ fsBuilder->declAppendf(GR_GL_PLS_PATH_DATA_DECL); |
+ // keep the derivative instructions outside the conditional |
+ fsBuilder->codeAppendf("highp vec2 uvdX = dFdx(%s);", uv.fsIn()); |
+ fsBuilder->codeAppendf("highp vec2 uvdY = dFdy(%s);", uv.fsIn()); |
+ fsBuilder->codeAppend("highp vec2 uvIncX = uvdX * 0.45 + uvdY * -0.1;"); |
+ fsBuilder->codeAppend("highp vec2 uvIncY = uvdX * 0.1 + uvdY * 0.55;"); |
+ fsBuilder->codeAppendf("highp vec2 uv = %s.xy - uvdX * 0.35 - uvdY * 0.25;", |
+ uv.fsIn()); |
+ fsBuilder->codeAppendf("highp vec2 firstSample = %s.xy - vec2(0.25);", |
+ fsBuilder->fragmentPosition()); |
+ fsBuilder->codeAppendf("highp float d = dot(%s, (firstSample - %s).yx) * 2.0;", |
+ delta.fsIn(), ep1.fsIn()); |
+ fsBuilder->codeAppendf("pls.windings[0] += %s(d, uv) ? %s : 0;", inQuadName.c_str(), |
+ windings.fsIn()); |
+ fsBuilder->codeAppend("uv += uvIncX;"); |
+ fsBuilder->codeAppendf("d += %s.x;", delta.fsIn()); |
+ fsBuilder->codeAppendf("pls.windings[1] += %s(d, uv) ? %s : 0;", inQuadName.c_str(), |
+ windings.fsIn()); |
+ fsBuilder->codeAppend("uv += uvIncY;"); |
+ fsBuilder->codeAppendf("d += %s.y;", delta.fsIn()); |
+ fsBuilder->codeAppendf("pls.windings[2] += %s(d, uv) ? %s : 0;", inQuadName.c_str(), |
+ windings.fsIn()); |
+ fsBuilder->codeAppend("uv -= uvIncX;"); |
+ fsBuilder->codeAppendf("d -= %s.x;", delta.fsIn()); |
+ fsBuilder->codeAppendf("pls.windings[3] += %s(d, uv) ? %s : 0;", inQuadName.c_str(), |
+ windings.fsIn()); |
+ } |
+ |
+ static inline void GenKey(const GrGeometryProcessor& gp, |
+ const GrGLSLCaps&, |
+ GrProcessorKeyBuilder* b) { |
+ const PLSQuadEdgeEffect& qee = gp.cast<PLSQuadEdgeEffect>(); |
+ uint32_t key = 0; |
+ key |= qee.usesLocalCoords() && qee.localMatrix().hasPerspective() ? 0x1 : 0x0; |
+ b->add32(key); |
+ } |
+ |
+ virtual void setData(const GrGLSLProgramDataManager& pdman, |
+ const GrPrimitiveProcessor& gp) override { |
+ } |
+ |
+ void setTransformData(const GrPrimitiveProcessor& primProc, |
+ const GrGLSLProgramDataManager& pdman, |
+ int index, |
+ const SkTArray<const GrCoordTransform*, true>& transforms) override { |
+ this->setTransformDataHelper<PLSQuadEdgeEffect>(primProc, pdman, index, transforms); |
+ } |
+ |
+ private: |
+ typedef GrGLSLGeometryProcessor INHERITED; |
+ }; |
+ |
+ virtual void getGLSLProcessorKey(const GrGLSLCaps& caps, |
+ GrProcessorKeyBuilder* b) const override { |
+ GLSLProcessor::GenKey(*this, caps, b); |
+ } |
+ |
+ virtual GrGLSLPrimitiveProcessor* createGLSLInstance(const GrGLSLCaps&) const override { |
+ return new GLSLProcessor(*this); |
+ } |
+ |
+private: |
+ PLSQuadEdgeEffect(const SkMatrix& localMatrix, bool usesLocalCoords) |
+ : fLocalMatrix(localMatrix) |
+ , fUsesLocalCoords(usesLocalCoords) { |
+ this->initClassID<PLSQuadEdgeEffect>(); |
+ fInPosition = &this->addVertexAttrib(Attribute("inPosition", kVec2f_GrVertexAttribType, |
+ kHigh_GrSLPrecision)); |
+ fInUV = &this->addVertexAttrib(Attribute("inUV", kVec2f_GrVertexAttribType, |
+ kHigh_GrSLPrecision)); |
+ fInEndpoint1 = &this->addVertexAttrib(Attribute("inEndpoint1", kVec2f_GrVertexAttribType, |
+ kHigh_GrSLPrecision)); |
+ fInEndpoint2 = &this->addVertexAttrib(Attribute("inEndpoint2", kVec2f_GrVertexAttribType, |
+ kHigh_GrSLPrecision)); |
+ fInWindings = &this->addVertexAttrib(Attribute("inWindings", kInt_GrVertexAttribType, |
+ kLow_GrSLPrecision)); |
+ this->setWillReadFragmentPosition(); |
+ } |
+ |
+ const Attribute* fInPosition; |
+ const Attribute* fInUV; |
+ const Attribute* fInEndpoint1; |
+ const Attribute* fInEndpoint2; |
+ const Attribute* fInWindings; |
+ SkMatrix fLocalMatrix; |
+ bool fUsesLocalCoords; |
+ |
+ GR_DECLARE_GEOMETRY_PROCESSOR_TEST; |
+ |
+ typedef GrGeometryProcessor INHERITED; |
+}; |
+ |
+class PLSFinishEffect : public GrGeometryProcessor { |
+public: |
+ |
+ static GrGeometryProcessor* Create(GrColor color, bool useEvenOdd, const SkMatrix& localMatrix, |
+ bool usesLocalCoords) { |
+ return new PLSFinishEffect(color, useEvenOdd, localMatrix, usesLocalCoords); |
+ } |
+ |
+ virtual ~PLSFinishEffect() {} |
+ |
+ const char* name() const override { return "PLSFinish"; } |
+ |
+ const Attribute* inPosition() const { return fInPosition; } |
+ GrColor color() const { return fColor; } |
+ bool colorIgnored() const { return GrColor_ILLEGAL == fColor; } |
+ const SkMatrix& localMatrix() const { return fLocalMatrix; } |
+ bool usesLocalCoords() const { return fUsesLocalCoords; } |
+ |
+ GrPixelLocalStorageState getPixelLocalStorageState() const override { |
+ return GrPixelLocalStorageState::kFinish_GrPixelLocalStorageState; |
+ } |
+ |
+ const char* getDestColorOverride() const override { |
+ return GR_GL_PLS_DSTCOLOR_NAME; |
+ } |
+ |
+ class GLSLProcessor : public GrGLSLGeometryProcessor { |
+ public: |
+ GLSLProcessor(const GrGeometryProcessor&) {} |
+ |
+ void onEmitCode(EmitArgs& args, GrGPArgs* gpArgs) override { |
+ const PLSFinishEffect& fe = args.fGP.cast<PLSFinishEffect>(); |
+ GrGLSLVertexBuilder* vsBuilder = args.fVertBuilder; |
+ GrGLSLVaryingHandler* varyingHandler = args.fVaryingHandler; |
+ GrGLSLUniformHandler* uniformHandler = args.fUniformHandler; |
+ |
+ fUseEvenOdd = uniformHandler->addUniform(GrGLUniformHandler::kFragment_Visibility, |
+ kFloat_GrSLType, kLow_GrSLPrecision, |
+ "useEvenOdd"); |
+ const char* useEvenOdd = uniformHandler->getUniformCStr(fUseEvenOdd); |
+ |
+ varyingHandler->emitAttributes(fe); |
+ this->setupPosition(vsBuilder, gpArgs, fe.inPosition()->fName); |
+ this->emitTransforms(vsBuilder, varyingHandler, uniformHandler, gpArgs->fPositionVar, |
+ fe.inPosition()->fName, fe.localMatrix(), args.fTransformsIn, |
+ args.fTransformsOut); |
+ |
+ GrGLSLFragmentBuilder* fsBuilder = args.fFragBuilder; |
+ SkAssertResult(fsBuilder->enableFeature( |
+ GrGLSLFragmentShaderBuilder::kPixelLocalStorage_GLSLFeature)); |
+ fsBuilder->declAppendf(GR_GL_PLS_PATH_DATA_DECL); |
+ fsBuilder->codeAppend("float coverage;"); |
+ fsBuilder->codeAppendf("if (%s != 0.0) {", useEvenOdd); |
+ fsBuilder->codeAppend("coverage = float(abs(pls.windings[0]) % 2) * 0.25;"); |
+ fsBuilder->codeAppend("coverage += float(abs(pls.windings[1]) % 2) * 0.25;"); |
+ fsBuilder->codeAppend("coverage += float(abs(pls.windings[2]) % 2) * 0.25;"); |
+ fsBuilder->codeAppend("coverage += float(abs(pls.windings[3]) % 2) * 0.25;"); |
+ fsBuilder->codeAppend("} else {"); |
+ fsBuilder->codeAppend("coverage = pls.windings[0] != 0 ? 0.25 : 0.0;"); |
+ fsBuilder->codeAppend("coverage += pls.windings[1] != 0 ? 0.25 : 0.0;"); |
+ fsBuilder->codeAppend("coverage += pls.windings[2] != 0 ? 0.25 : 0.0;"); |
+ fsBuilder->codeAppend("coverage += pls.windings[3] != 0 ? 0.25 : 0.0;"); |
+ fsBuilder->codeAppend("}"); |
+ if (!fe.colorIgnored()) { |
+ this->setupUniformColor(fsBuilder, uniformHandler, args.fOutputColor, |
+ &fColorUniform); |
+ } |
+ fsBuilder->codeAppendf("%s = vec4(coverage);", args.fOutputCoverage); |
+ fsBuilder->codeAppendf("%s = vec4(1.0, 0.0, 1.0, 1.0);", args.fOutputColor); |
+ } |
+ |
+ static inline void GenKey(const GrGeometryProcessor& gp, |
+ const GrGLSLCaps&, |
+ GrProcessorKeyBuilder* b) { |
+ const PLSFinishEffect& fe = gp.cast<PLSFinishEffect>(); |
+ uint32_t key = 0; |
+ key |= fe.usesLocalCoords() && fe.localMatrix().hasPerspective() ? 0x1 : 0x0; |
+ b->add32(key); |
+ } |
+ |
+ virtual void setData(const GrGLSLProgramDataManager& pdman, |
+ const GrPrimitiveProcessor& gp) override { |
+ const PLSFinishEffect& fe = gp.cast<PLSFinishEffect>(); |
+ pdman.set1f(fUseEvenOdd, fe.fUseEvenOdd); |
+ if (fe.color() != fColor && !fe.colorIgnored()) { |
+ GrGLfloat c[4]; |
+ GrColorToRGBAFloat(fe.color(), c); |
+ pdman.set4fv(fColorUniform, 1, c); |
+ fColor = fe.color(); |
+ } |
+ } |
+ |
+ void setTransformData(const GrPrimitiveProcessor& primProc, |
+ const GrGLSLProgramDataManager& pdman, |
+ int index, |
+ const SkTArray<const GrCoordTransform*, true>& transforms) override { |
+ this->setTransformDataHelper<PLSFinishEffect>(primProc, pdman, index, transforms); |
+ } |
+ |
+ private: |
+ GrColor fColor; |
+ UniformHandle fColorUniform; |
+ UniformHandle fUseEvenOdd; |
+ |
+ typedef GrGLSLGeometryProcessor INHERITED; |
+ }; |
+ |
+ virtual void getGLSLProcessorKey(const GrGLSLCaps& caps, |
+ GrProcessorKeyBuilder* b) const override { |
+ GLSLProcessor::GenKey(*this, caps, b); |
+ } |
+ |
+ virtual GrGLSLPrimitiveProcessor* createGLSLInstance(const GrGLSLCaps&) const override { |
+ return new GLSLProcessor(*this); |
+ } |
+ |
+private: |
+ PLSFinishEffect(GrColor color, bool useEvenOdd, const SkMatrix& localMatrix, |
+ bool usesLocalCoords) |
+ : fColor(color) |
+ , fUseEvenOdd(useEvenOdd) |
+ , fLocalMatrix(localMatrix) |
+ , fUsesLocalCoords(usesLocalCoords) { |
+ this->initClassID<PLSFinishEffect>(); |
+ fInPosition = &this->addVertexAttrib(Attribute("inPosition", kVec2f_GrVertexAttribType, |
+ kHigh_GrSLPrecision)); |
+ } |
+ |
+ const Attribute* fInPosition; |
+ GrColor fColor; |
+ bool fUseEvenOdd; |
+ SkMatrix fLocalMatrix; |
+ bool fUsesLocalCoords; |
+ |
+ typedef GrGeometryProcessor INHERITED; |
+}; |
+ |
+/////////////////////////////////////////////////////////////////////////////// |
+ |
+bool GrPLSPathRenderer::onCanDrawPath(const CanDrawPathArgs& args) const { |
+ // We have support for even-odd rendering, but are having some troublesome |
+ // seams. Disable in the presence of even-odd for now. |
+ return args.fShaderCaps->shaderDerivativeSupport() && args.fAntiAlias && |
+ args.fStroke->isFillStyle() && !args.fPath->isInverseFillType() && |
+ args.fPath->getFillType() == SkPath::FillType::kWinding_FillType; |
+} |
+ |
+class PLSPathBatch : public GrVertexBatch { |
+public: |
+ DEFINE_BATCH_CLASS_ID |
+ struct Geometry { |
+ GrColor fColor; |
+ SkMatrix fViewMatrix; |
+ SkPath fPath; |
+ }; |
+ |
+ static GrDrawBatch* Create(const Geometry& geometry) { |
+ return new PLSPathBatch(geometry); |
+ } |
+ |
+ const char* name() const override { return "PLSBatch"; } |
+ |
+ void computePipelineOptimizations(GrInitInvariantOutput* color, |
+ GrInitInvariantOutput* coverage, |
+ GrBatchToXPOverrides* overrides) const override { |
+ // When this is called on a batch, there is only one geometry bundle |
+ color->setKnownFourComponents(fGeoData[0].fColor); |
+ coverage->setUnknownSingleComponent(); |
+ overrides->fUsePLSDstRead = true; |
+ } |
+ |
+ 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.fColor = fGeoData[0].fColor; |
+ fBatch.fUsesLocalCoords = overrides.readsLocalCoords(); |
+ fBatch.fCoverageIgnored = !overrides.readsCoverage(); |
+ fBatch.fCanTweakAlphaForCoverage = overrides.canTweakAlphaForCoverage(); |
+ } |
+ |
+ 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; |
+ } |
+ |
+ // Setup GrGeometryProcessors |
+ SkAutoTUnref<GrPLSGeometryProcessor> triangleProcessor( |
+ PLSAATriangleEffect::Create(invert, this->usesLocalCoords())); |
+ SkAutoTUnref<GrPLSGeometryProcessor> quadProcessor( |
+ PLSQuadEdgeEffect::Create(invert, this->usesLocalCoords())); |
+ |
+ GrResourceProvider* rp = target->resourceProvider(); |
+ for (int i = 0; i < instanceCount; ++i) { |
+ const Geometry& args = fGeoData[i]; |
+ SkRect bounds = args.fPath.getBounds(); |
+ args.fViewMatrix.mapRect(&bounds); |
+ bounds.fLeft = SkScalarFloorToScalar(bounds.fLeft); |
+ bounds.fTop = SkScalarFloorToScalar(bounds.fTop); |
+ bounds.fRight = SkScalarCeilToScalar(bounds.fRight); |
+ bounds.fBottom = SkScalarCeilToScalar(bounds.fBottom); |
+ triangleProcessor->setBounds(bounds); |
+ quadProcessor->setBounds(bounds); |
+ |
+ // We use the fact that SkPath::transform path does subdivision based on |
+ // perspective. Otherwise, we apply the view matrix when copying to the |
+ // segment representation. |
+ const SkMatrix* viewMatrix = &args.fViewMatrix; |
+ |
+ // We avoid initializing the path unless we have to |
+ const SkPath* pathPtr = &args.fPath; |
+ SkTLazy<SkPath> tmpPath; |
+ if (viewMatrix->hasPerspective()) { |
+ SkPath* tmpPathPtr = tmpPath.init(*pathPtr); |
+ tmpPathPtr->setIsVolatile(true); |
+ tmpPathPtr->transform(*viewMatrix); |
+ viewMatrix = &SkMatrix::I(); |
+ pathPtr = tmpPathPtr; |
+ } |
+ |
+ GrVertices grVertices; |
+ |
+ PLSVertices triVertices; |
+ PLSVertices quadVertices; |
+ if (!get_geometry(*pathPtr, *viewMatrix, triVertices, quadVertices, rp, bounds)) { |
+ continue; |
+ } |
+ |
+ if (triVertices.count()) { |
+ const GrVertexBuffer* triVertexBuffer; |
+ int firstTriVertex; |
+ size_t triStride = triangleProcessor->getVertexStride(); |
+ PLSVertex* triVerts = reinterpret_cast<PLSVertex*>(target->makeVertexSpace( |
+ triStride, triVertices.count(), &triVertexBuffer, &firstTriVertex)); |
+ if (!triVerts) { |
+ SkDebugf("Could not allocate vertices\n"); |
+ return; |
+ } |
+ for (int i = 0; i < triVertices.count(); ++i) { |
+ triVerts[i] = triVertices[i]; |
+ } |
+ grVertices.init(kTriangles_GrPrimitiveType, triVertexBuffer, firstTriVertex, |
+ triVertices.count()); |
+ target->initDraw(triangleProcessor, this->pipeline()); |
+ target->draw(grVertices); |
+ } |
+ |
+ if (quadVertices.count()) { |
+ const GrVertexBuffer* quadVertexBuffer; |
+ int firstQuadVertex; |
+ size_t quadStride = quadProcessor->getVertexStride(); |
+ PLSVertex* quadVerts = reinterpret_cast<PLSVertex*>(target->makeVertexSpace( |
+ quadStride, quadVertices.count(), &quadVertexBuffer, &firstQuadVertex)); |
+ if (!quadVerts) { |
+ SkDebugf("Could not allocate vertices\n"); |
+ return; |
+ } |
+ for (int i = 0; i < quadVertices.count(); ++i) { |
+ quadVerts[i] = quadVertices[i]; |
+ } |
+ grVertices.init(kTriangles_GrPrimitiveType, quadVertexBuffer, firstQuadVertex, |
+ quadVertices.count()); |
+ target->initDraw(quadProcessor, this->pipeline()); |
+ target->draw(grVertices); |
+ } |
+ |
+ SkAutoTUnref<GrGeometryProcessor> finishProcessor( |
+ PLSFinishEffect::Create(this->color(), |
+ pathPtr->getFillType() == |
+ SkPath::FillType::kEvenOdd_FillType, |
+ invert, |
+ this->usesLocalCoords())); |
+ const GrVertexBuffer* rectVertexBuffer; |
+ size_t finishStride = finishProcessor->getVertexStride(); |
+ int firstRectVertex; |
+ static const int kRectVertexCount = 6; |
+ SkPoint* rectVerts = reinterpret_cast<SkPoint*>(target->makeVertexSpace( |
+ finishStride, kRectVertexCount, &rectVertexBuffer, &firstRectVertex)); |
+ if (!rectVerts) { |
+ SkDebugf("Could not allocate vertices\n"); |
+ return; |
+ } |
+ rectVerts[0] = { bounds.fLeft, bounds.fTop }; |
+ rectVerts[1] = { bounds.fLeft, bounds.fBottom }; |
+ rectVerts[2] = { bounds.fRight, bounds.fBottom }; |
+ rectVerts[3] = { bounds.fLeft, bounds.fTop }; |
+ rectVerts[4] = { bounds.fRight, bounds.fTop }; |
+ rectVerts[5] = { bounds.fRight, bounds.fBottom }; |
+ |
+ grVertices.init(kTriangles_GrPrimitiveType, rectVertexBuffer, firstRectVertex, |
+ kRectVertexCount); |
+ target->initDraw(finishProcessor, this->pipeline()); |
+ target->draw(grVertices); |
+ } |
+ } |
+ |
+ SkSTArray<1, Geometry, true>* geoData() { return &fGeoData; } |
+ |
+private: |
+ PLSPathBatch(const Geometry& geometry) : INHERITED(ClassID()) { |
+ fGeoData.push_back(geometry); |
+ |
+ // compute bounds |
+ fBounds = geometry.fPath.getBounds(); |
+ geometry.fViewMatrix.mapRect(&fBounds); |
+ } |
+ |
+ bool onCombineIfPossible(GrBatch* t, const GrCaps& caps) override { |
+ return false; |
+ } |
+ |
+ GrColor color() const { return fBatch.fColor; } |
+ bool usesLocalCoords() const { return fBatch.fUsesLocalCoords; } |
+ bool canTweakAlphaForCoverage() const { return fBatch.fCanTweakAlphaForCoverage; } |
+ const SkMatrix& viewMatrix() const { return fGeoData[0].fViewMatrix; } |
+ bool coverageIgnored() const { return fBatch.fCoverageIgnored; } |
+ |
+ struct BatchTracker { |
+ GrColor fColor; |
+ bool fUsesLocalCoords; |
+ bool fColorIgnored; |
+ bool fCoverageIgnored; |
+ bool fCanTweakAlphaForCoverage; |
+ }; |
+ |
+ BatchTracker fBatch; |
+ SkSTArray<1, Geometry, true> fGeoData; |
+ |
+ typedef GrVertexBatch INHERITED; |
+}; |
+ |
+SkDEBUGCODE(bool inPLSDraw = false;) |
+bool GrPLSPathRenderer::onDrawPath(const DrawPathArgs& args) { |
+ if (args.fPath->isEmpty()) { |
+ return true; |
+ } |
+ SkASSERT(!inPLSDraw); |
+ SkDEBUGCODE(inPLSDraw = true;) |
+ PLSPathBatch::Geometry geometry; |
+ geometry.fColor = args.fColor; |
+ geometry.fViewMatrix = *args.fViewMatrix; |
+ geometry.fPath = *args.fPath; |
+ |
+ SkAutoTUnref<GrDrawBatch> batch(PLSPathBatch::Create(geometry)); |
+ args.fTarget->drawBatch(*args.fPipelineBuilder, batch); |
+ |
+ SkDEBUGCODE(inPLSDraw = false;) |
+ return true; |
+ |
+} |
+ |
+/////////////////////////////////////////////////////////////////////////////////////////////////// |
+ |
+#ifdef GR_TEST_UTILS |
+ |
+DRAW_BATCH_TEST_DEFINE(PLSPathBatch) { |
+ PLSPathBatch::Geometry geometry; |
+ geometry.fColor = GrRandomColor(random); |
+ geometry.fViewMatrix = GrTest::TestMatrixInvertible(random); |
+ geometry.fPath = GrTest::TestPathConvex(random); |
+ |
+ return PLSPathBatch::Create(geometry); |
+} |
+ |
+#endif |