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Unified Diff: src/gpu/GrAAHairLinePathRenderer.cpp

Issue 894273002: Revert of Hairline batch (Closed) Base URL: https://skia.googlesource.com/skia.git@2_defer
Patch Set: Created 5 years, 11 months ago
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Index: src/gpu/GrAAHairLinePathRenderer.cpp
diff --git a/src/gpu/GrAAHairLinePathRenderer.cpp b/src/gpu/GrAAHairLinePathRenderer.cpp
index 6ecaa2eba4653f99d81aaff087c07b4faaee56c8..ce24cf8c26a80d5411f36c205d38bf406638068c 100644
--- a/src/gpu/GrAAHairLinePathRenderer.cpp
+++ b/src/gpu/GrAAHairLinePathRenderer.cpp
@@ -7,9 +7,6 @@
#include "GrAAHairLinePathRenderer.h"
-#include "GrBatch.h"
-#include "GrBatchTarget.h"
-#include "GrBufferAllocPool.h"
#include "GrContext.h"
#include "GrDefaultGeoProcFactory.h"
#include "GrDrawTargetCaps.h"
@@ -256,14 +253,14 @@
* subdivide large quads to reduce over-fill. This subdivision has to be
* performed before applying the perspective matrix.
*/
-int gather_lines_and_quads(const SkPath& path,
- const SkMatrix& m,
- const SkIRect& devClipBounds,
- GrAAHairLinePathRenderer::PtArray* lines,
- GrAAHairLinePathRenderer::PtArray* quads,
- GrAAHairLinePathRenderer::PtArray* conics,
- GrAAHairLinePathRenderer::IntArray* quadSubdivCnts,
- GrAAHairLinePathRenderer::FloatArray* conicWeights) {
+int generate_lines_and_quads(const SkPath& path,
+ const SkMatrix& m,
+ const SkIRect& devClipBounds,
+ GrAAHairLinePathRenderer::PtArray* lines,
+ GrAAHairLinePathRenderer::PtArray* quads,
+ GrAAHairLinePathRenderer::PtArray* conics,
+ GrAAHairLinePathRenderer::IntArray* quadSubdivCnts,
+ GrAAHairLinePathRenderer::FloatArray* conicWeights) {
SkPath::Iter iter(path, false);
int totalQuadCount = 0;
@@ -472,7 +469,8 @@
}
void bloat_quad(const SkPoint qpts[3], const SkMatrix* toDevice,
- const SkMatrix* toSrc, BezierVertex verts[kQuadNumVertices]) {
+ const SkMatrix* toSrc, BezierVertex verts[kQuadNumVertices],
+ SkRect* devBounds) {
SkASSERT(!toDevice == !toSrc);
// original quad is specified by tri a,b,c
SkPoint a = qpts[0];
@@ -537,6 +535,7 @@
c1.fPos -= cbN;
intersect_lines(a0.fPos, abN, c0.fPos, cbN, &b0.fPos);
+ devBounds->growToInclude(&verts[0].fPos, sizeof(BezierVertex), kQuadNumVertices);
if (toSrc) {
toSrc->mapPointsWithStride(&verts[0].fPos, sizeof(BezierVertex), kQuadNumVertices);
@@ -568,8 +567,9 @@
const SkScalar weight,
const SkMatrix* toDevice,
const SkMatrix* toSrc,
- BezierVertex** vert) {
- bloat_quad(p, toDevice, toSrc, *vert);
+ BezierVertex** vert,
+ SkRect* devBounds) {
+ bloat_quad(p, toDevice, toSrc, *vert, devBounds);
set_conic_coeffs(p, *vert, weight);
*vert += kQuadNumVertices;
}
@@ -578,15 +578,16 @@
int subdiv,
const SkMatrix* toDevice,
const SkMatrix* toSrc,
- BezierVertex** vert) {
+ BezierVertex** vert,
+ SkRect* devBounds) {
SkASSERT(subdiv >= 0);
if (subdiv) {
SkPoint newP[5];
SkChopQuadAtHalf(p, newP);
- add_quads(newP + 0, subdiv-1, toDevice, toSrc, vert);
- add_quads(newP + 2, subdiv-1, toDevice, toSrc, vert);
+ add_quads(newP + 0, subdiv-1, toDevice, toSrc, vert, devBounds);
+ add_quads(newP + 2, subdiv-1, toDevice, toSrc, vert, devBounds);
} else {
- bloat_quad(p, toDevice, toSrc, *vert);
+ bloat_quad(p, toDevice, toSrc, *vert, devBounds);
set_uv_quad(p, *vert);
*vert += kQuadNumVertices;
}
@@ -641,6 +642,106 @@
///////////////////////////////////////////////////////////////////////////////
+bool GrAAHairLinePathRenderer::createLineGeom(GrDrawTarget* target,
+ GrPipelineBuilder* pipelineBuilder,
+ const SkMatrix& viewMatrix,
+ uint8_t coverage,
+ size_t vertexStride,
+ GrDrawTarget::AutoReleaseGeometry* arg,
+ SkRect* devBounds,
+ const SkPath& path,
+ const PtArray& lines,
+ int lineCnt) {
+ int vertCnt = kLineSegNumVertices * lineCnt;
+
+ SkASSERT(vertexStride == sizeof(LineVertex));
+ if (!arg->set(target, vertCnt, vertexStride, 0)) {
+ return false;
+ }
+
+ LineVertex* verts = reinterpret_cast<LineVertex*>(arg->vertices());
+
+ const SkMatrix* toSrc = NULL;
+ SkMatrix ivm;
+
+ if (viewMatrix.hasPerspective()) {
+ if (viewMatrix.invert(&ivm)) {
+ toSrc = &ivm;
+ }
+ }
+ devBounds->set(lines.begin(), lines.count());
+ for (int i = 0; i < lineCnt; ++i) {
+ add_line(&lines[2*i], toSrc, coverage, &verts);
+ }
+ // All the verts computed by add_line are within sqrt(1^2 + 0.5^2) of the end points.
+ static const SkScalar kSqrtOfOneAndAQuarter = 1.118f;
+ // Add a little extra to account for vector normalization precision.
+ static const SkScalar kOutset = kSqrtOfOneAndAQuarter + SK_Scalar1 / 20;
+ devBounds->outset(kOutset, kOutset);
+
+ return true;
+}
+
+bool GrAAHairLinePathRenderer::createBezierGeom(GrDrawTarget* target,
+ GrPipelineBuilder* pipelineBuilder,
+ const SkMatrix& viewMatrix,
+ GrDrawTarget::AutoReleaseGeometry* arg,
+ SkRect* devBounds,
+ const SkPath& path,
+ const PtArray& quads,
+ int quadCnt,
+ const PtArray& conics,
+ int conicCnt,
+ const IntArray& qSubdivs,
+ const FloatArray& cWeights,
+ size_t vertexStride) {
+ int vertCnt = kQuadNumVertices * quadCnt + kQuadNumVertices * conicCnt;
+
+ if (!arg->set(target, vertCnt, vertexStride, 0)) {
+ return false;
+ }
+
+ BezierVertex* verts = reinterpret_cast<BezierVertex*>(arg->vertices());
+
+ const SkMatrix* toDevice = NULL;
+ const SkMatrix* toSrc = NULL;
+ SkMatrix ivm;
+
+ if (viewMatrix.hasPerspective()) {
+ if (viewMatrix.invert(&ivm)) {
+ toDevice = &viewMatrix;
+ toSrc = &ivm;
+ }
+ }
+
+ // Seed the dev bounds with some pts known to be inside. Each quad and conic grows the bounding
+ // box to include its vertices.
+ SkPoint seedPts[2];
+ if (quadCnt) {
+ seedPts[0] = quads[0];
+ seedPts[1] = quads[2];
+ } else if (conicCnt) {
+ seedPts[0] = conics[0];
+ seedPts[1] = conics[2];
+ }
+ if (toDevice) {
+ toDevice->mapPoints(seedPts, 2);
+ }
+ devBounds->set(seedPts[0], seedPts[1]);
+
+ int unsubdivQuadCnt = quads.count() / 3;
+ for (int i = 0; i < unsubdivQuadCnt; ++i) {
+ SkASSERT(qSubdivs[i] >= 0);
+ add_quads(&quads[3*i], qSubdivs[i], toDevice, toSrc, &verts, devBounds);
+ }
+
+ // Start Conics
+ for (int i = 0; i < conicCnt; ++i) {
+ add_conics(&conics[3*i], cWeights[i], toDevice, toSrc, &verts, devBounds);
+ }
+ return true;
+}
+
bool GrAAHairLinePathRenderer::canDrawPath(const GrDrawTarget* target,
const GrPipelineBuilder* pipelineBuilder,
const SkMatrix& viewMatrix,
@@ -699,444 +800,13 @@
return true;
}
-class AAHairlineBatch : public GrBatch {
-public:
- struct Geometry {
- GrColor fColor;
- uint8_t fCoverage;
- SkMatrix fViewMatrix;
- SkPath fPath;
- SkDEBUGCODE(SkRect fDevBounds;)
- SkIRect fDevClipBounds;
- };
-
- // TODO Batch itself should not hold on to index buffers. Instead, these should live in the
- // cache.
- static GrBatch* Create(const Geometry& geometry, const GrIndexBuffer* linesIndexBuffer,
- const GrIndexBuffer* quadsIndexBuffer) {
- return SkNEW_ARGS(AAHairlineBatch, (geometry, linesIndexBuffer, quadsIndexBuffer));
- }
-
- const char* name() const SK_OVERRIDE { return "AAHairlineBatch"; }
-
- void getInvariantOutputColor(GrInitInvariantOutput* out) const SK_OVERRIDE {
- // When this is called on a batch, there is only one geometry bundle
- out->setKnownFourComponents(fGeoData[0].fColor);
- }
- void getInvariantOutputCoverage(GrInitInvariantOutput* out) const SK_OVERRIDE {
- out->setUnknownSingleComponent();
- }
-
- void initBatchOpt(const GrBatchOpt& batchOpt) {
- fBatchOpt = batchOpt;
- }
-
- void initBatchTracker(const GrPipelineInfo& init) SK_OVERRIDE {
- // Handle any color overrides
- if (init.fColorIgnored) {
- fGeoData[0].fColor = GrColor_ILLEGAL;
- } else if (GrColor_ILLEGAL != init.fOverrideColor) {
- fGeoData[0].fColor = init.fOverrideColor;
- }
-
- // setup batch properties
- fBatch.fColorIgnored = init.fColorIgnored;
- fBatch.fColor = fGeoData[0].fColor;
- fBatch.fUsesLocalCoords = init.fUsesLocalCoords;
- fBatch.fCoverageIgnored = init.fCoverageIgnored;
- fBatch.fCoverage = fGeoData[0].fCoverage;
- SkDEBUGCODE(fBatch.fDevBounds = fGeoData[0].fDevBounds;)
- }
-
- void generateGeometry(GrBatchTarget* batchTarget, const GrPipeline* pipeline) SK_OVERRIDE {
- int instanceCount = fGeoData.count();
- for (int i = 0; i < instanceCount; i++) {
- const Geometry& args = fGeoData[i];
-
- // createGeom transforms the geometry to device space when the matrix does not have
- // perspective.
- SkMatrix vm = args.fViewMatrix;
- SkMatrix invert = SkMatrix::I();
- if (!args.fViewMatrix.hasPerspective()) {
- vm = SkMatrix::I();
- if (!args.fViewMatrix.invert(&invert)) {
- return;
- }
- }
-
- int lineCount;
- int quadCount;
- int conicCount;
- PREALLOC_PTARRAY(128) lines;
- PREALLOC_PTARRAY(128) quads;
- PREALLOC_PTARRAY(128) conics;
- IntArray qSubdivs;
- FloatArray cWeights;
- quadCount = gather_lines_and_quads(args.fPath, args.fViewMatrix, args.fDevClipBounds,
- &lines, &quads, &conics, &qSubdivs, &cWeights);
-
- lineCount = lines.count() / 2;
- conicCount = conics.count() / 3;
-
- // do lines first
- if (lineCount) {
- this->generateLines(batchTarget, pipeline, args, vm, invert, lines, lineCount);
- }
-
- if (quadCount || conicCount) {
- this->generateQuadsAndConics(batchTarget,
- pipeline,
- args,
- quads,
- quadCount,
- conics,
- conicCount,
- qSubdivs,
- cWeights,
- vm,
- invert);
- }
- }
- }
-
- SkSTArray<1, Geometry, true>* geoData() { return &fGeoData; }
-
-private:
- typedef SkTArray<SkPoint, true> PtArray;
- typedef SkTArray<int, true> IntArray;
- typedef SkTArray<float, true> FloatArray;
-
- AAHairlineBatch(const Geometry& geometry, const GrIndexBuffer* linesIndexBuffer,
- const GrIndexBuffer* quadsIndexBuffer)
- : fLinesIndexBuffer(linesIndexBuffer)
- , fQuadsIndexBuffer(quadsIndexBuffer) {
- SkASSERT(linesIndexBuffer && quadsIndexBuffer);
- this->initClassID<AAHairlineBatch>();
- fGeoData.push_back(geometry);
- }
-
- bool onCombineIfPossible(GrBatch* t) SK_OVERRIDE {
- AAHairlineBatch* that = t->cast<AAHairlineBatch>();
-
- // We go to identity if we don't have perspective
- if (this->viewMatrix().hasPerspective() &&
- !this->viewMatrix().cheapEqualTo(that->viewMatrix())) {
- return false;
- }
-
- // TODO we can actually batch hairlines if they are the same color in a kind of bulk method
- // but we haven't implemented this yet
- // TODO investigate going to vertex color and coverage?
- if (this->coverage() != that->coverage()) {
- return false;
- }
-
- if (this->color() != that->color()) {
- return false;
- }
-
- SkASSERT(this->usesLocalCoords() == that->usesLocalCoords());
- if (this->usesLocalCoords() && !this->viewMatrix().cheapEqualTo(that->viewMatrix())) {
- return false;
- }
-
- fGeoData.push_back_n(that->geoData()->count(), that->geoData()->begin());
- return true;
- }
-
- GrColor color() const { return fBatch.fColor; }
- uint8_t coverage() const { return fBatch.fCoverage; }
- bool usesLocalCoords() const { return fBatch.fUsesLocalCoords; }
- const SkMatrix& viewMatrix() const { return fGeoData[0].fViewMatrix; }
-
- void generateLines(GrBatchTarget* batchTarget,
- const GrPipeline* pipeline,
- const Geometry& args,
- const SkMatrix& viewMatrix,
- const SkMatrix& invert,
- const PtArray& lines,
- int lineCnt) {
- uint32_t gpFlags = GrDefaultGeoProcFactory::kPosition_GPType |
- GrDefaultGeoProcFactory::kCoverage_GPType;
- SkAutoTUnref<const GrGeometryProcessor> gp(GrDefaultGeoProcFactory::Create(gpFlags,
- args.fColor,
- viewMatrix,
- invert,
- false,
- args.fCoverage));
-
- batchTarget->initDraw(gp, pipeline);
-
- // TODO remove this when batch is everywhere
- GrPipelineInfo init;
- init.fColorIgnored = fBatch.fColorIgnored;
- init.fOverrideColor = GrColor_ILLEGAL;
- init.fCoverageIgnored = fBatch.fCoverageIgnored;
- init.fUsesLocalCoords = this->usesLocalCoords();
- gp->initBatchTracker(batchTarget->currentBatchTracker(), init);
-
- const GrVertexBuffer* vertexBuffer;
- int firstVertex;
-
- size_t vertexStride = gp->getVertexStride();
- int vertexCount = kLineSegNumVertices * lineCnt;
- void *vertices = batchTarget->vertexPool()->makeSpace(vertexStride,
- vertexCount,
- &vertexBuffer,
- &firstVertex);
-
- SkASSERT(gp->getVertexStride() == sizeof(LineVertex));
-
- // generate lines
- const SkMatrix* toSrc = NULL;
- if (args.fViewMatrix.hasPerspective()) {
- SkMatrix perspectiveInvert;
- if (!args.fViewMatrix.invert(&perspectiveInvert)) {
- return;
- }
- toSrc = &perspectiveInvert;
- }
-
- LineVertex* verts = reinterpret_cast<LineVertex*>(vertices);
- for (int i = 0; i < lineCnt; ++i) {
- add_line(&lines[2*i], toSrc, args.fCoverage, &verts);
- }
-
- // Check devBounds
- SkASSERT(check_bounds<LineVertex>(viewMatrix.hasPerspective() ? viewMatrix : SkMatrix::I(),
- args.fDevBounds,
- vertices,
- kLineSegNumVertices * lineCnt));
-
- {
- GrDrawTarget::DrawInfo info;
- info.setVertexBuffer(vertexBuffer);
- info.setIndexBuffer(fLinesIndexBuffer);
- info.setPrimitiveType(kTriangles_GrPrimitiveType);
- info.setStartIndex(0);
-
- int lines = 0;
- while (lines < lineCnt) {
- int n = SkTMin(lineCnt - lines, kLineSegsNumInIdxBuffer);
-
- info.setStartVertex(kLineSegNumVertices*lines + firstVertex);
- info.setVertexCount(kLineSegNumVertices*n);
- info.setIndexCount(kIdxsPerLineSeg*n);
- batchTarget->draw(info);
-
- lines += n;
- }
- }
- }
-
- void generateQuadsAndConics(GrBatchTarget* batchTarget,
- const GrPipeline* pipeline,
- const Geometry& args,
- const PREALLOC_PTARRAY(128)& quads,
- int quadCount,
- const PREALLOC_PTARRAY(128)& conics,
- int conicCount,
- const IntArray& qSubdivs,
- const FloatArray& cWeights,
- const SkMatrix& vm,
- const SkMatrix& invert) {
- const GrVertexBuffer* vertexBuffer;
- int firstVertex;
-
- size_t vertexStride = sizeof(BezierVertex);
- int vertexCount = kQuadNumVertices * quadCount + kQuadNumVertices * conicCount;
- void *vertices = batchTarget->vertexPool()->makeSpace(vertexStride,
- vertexCount,
- &vertexBuffer,
- &firstVertex);
-
- if (!this->createBezierGeom(vertices,
- args.fViewMatrix,
- args.fPath,
- quads,
- quadCount,
- conics,
- conicCount,
- qSubdivs,
- cWeights,
- vertexStride)) {
- SkDebugf("Couldn't create bezier geometry\n");
- return;
- }
-
- // Check devBounds
- SkASSERT(check_bounds<BezierVertex>(vm,
- args.fDevBounds,
- vertices,
- kQuadNumVertices * quadCount +
- kQuadNumVertices * conicCount));
-
- if (quadCount > 0) {
- SkAutoTUnref<GrGeometryProcessor> hairQuadProcessor(
- GrQuadEffect::Create(args.fColor,
- vm,
- kHairlineAA_GrProcessorEdgeType,
- batchTarget->caps(),
- invert,
- args.fCoverage));
-
- batchTarget->initDraw(hairQuadProcessor, pipeline);
-
- // TODO remove this when batch is everywhere
- GrPipelineInfo init;
- init.fColorIgnored = fBatch.fColorIgnored;
- init.fOverrideColor = GrColor_ILLEGAL;
- init.fCoverageIgnored = fBatch.fCoverageIgnored;
- init.fUsesLocalCoords = this->usesLocalCoords();
- hairQuadProcessor->initBatchTracker(batchTarget->currentBatchTracker(), init);
-
- this->drawBeziers(batchTarget,
- hairQuadProcessor,
- pipeline,
- vertexBuffer,
- firstVertex,
- quadCount);
- }
-
- if (conicCount > 0) {
- SkAutoTUnref<GrGeometryProcessor> hairConicProcessor(
- GrConicEffect::Create(args.fColor,
- vm,
- kHairlineAA_GrProcessorEdgeType,
- batchTarget->caps(),
- invert,
- args.fCoverage));
-
- batchTarget->initDraw(hairConicProcessor, pipeline);
-
- // TODO remove this when batch is everywhere
- GrPipelineInfo init;
- init.fColorIgnored = fBatch.fColorIgnored;
- init.fOverrideColor = GrColor_ILLEGAL;
- init.fCoverageIgnored = fBatch.fCoverageIgnored;
- init.fUsesLocalCoords = this->usesLocalCoords();
- hairConicProcessor->initBatchTracker(batchTarget->currentBatchTracker(), init);
-
- this->drawConics(batchTarget,
- hairConicProcessor,
- pipeline,
- vertexBuffer,
- firstVertex,
- conicCount,
- quadCount);
- }
- }
-
- bool createBezierGeom(void* vertices,
- const SkMatrix& viewMatrix,
- const SkPath& path,
- const PtArray& quads,
- int quadCnt,
- const PtArray& conics,
- int conicCnt,
- const IntArray& qSubdivs,
- const FloatArray& cWeights,
- size_t vertexStride) {
- BezierVertex* verts = reinterpret_cast<BezierVertex*>(vertices);
-
- const SkMatrix* toDevice = NULL;
- const SkMatrix* toSrc = NULL;
- SkMatrix ivm;
-
- if (viewMatrix.hasPerspective()) {
- if (viewMatrix.invert(&ivm)) {
- toDevice = &viewMatrix;
- toSrc = &ivm;
- }
- }
-
- int unsubdivQuadCnt = quads.count() / 3;
- for (int i = 0; i < unsubdivQuadCnt; ++i) {
- SkASSERT(qSubdivs[i] >= 0);
- add_quads(&quads[3*i], qSubdivs[i], toDevice, toSrc, &verts);
- }
-
- // Start Conics
- for (int i = 0; i < conicCnt; ++i) {
- add_conics(&conics[3*i], cWeights[i], toDevice, toSrc, &verts);
- }
- return true;
- }
-
- void drawBeziers(GrBatchTarget* batchTarget,
- const GrGeometryProcessor* hairQuadProcessor,
- const GrPipeline* pipeline,
- const GrVertexBuffer* vertexBuffer,
- int firstVertex,
- int quadCount) {
- GrDrawTarget::DrawInfo info;
- info.setVertexBuffer(vertexBuffer);
- info.setIndexBuffer(fQuadsIndexBuffer);
- info.setPrimitiveType(kTriangles_GrPrimitiveType);
- info.setStartIndex(0);
-
- int quads = 0;
- while (quads < quadCount) {
- int n = SkTMin(quadCount - quads, kQuadsNumInIdxBuffer);
-
- info.setStartVertex(kQuadNumVertices*quads + firstVertex);
- info.setVertexCount(kQuadNumVertices*n);
- info.setIndexCount(kIdxsPerQuad*n);
- batchTarget->draw(info);
-
- quads += n;
- }
- }
-
- void drawConics(GrBatchTarget* batchTarget,
- const GrGeometryProcessor* hairConicProcessor,
- const GrPipeline* pipeline,
- const GrVertexBuffer* vertexBuffer,
- int firstVertex,
- int conicCount,
- int quadCount) {
- GrDrawTarget::DrawInfo info;
- info.setVertexBuffer(vertexBuffer);
- info.setIndexBuffer(fQuadsIndexBuffer);
- info.setPrimitiveType(kTriangles_GrPrimitiveType);
- info.setStartIndex(0);
-
- int conics = 0;
- while (conics < conicCount) {
- int n = SkTMin(conicCount - conics, kQuadsNumInIdxBuffer);
-
- info.setStartVertex(kQuadNumVertices*(quadCount + conics) + firstVertex);
- info.setVertexCount(kQuadNumVertices*n);
- info.setIndexCount(kIdxsPerQuad*n);
- batchTarget->draw(info);
-
- conics += n;
- }
- }
-
- struct BatchTracker {
- GrColor fColor;
- uint8_t fCoverage;
- SkRect fDevBounds;
- bool fUsesLocalCoords;
- bool fColorIgnored;
- bool fCoverageIgnored;
- };
-
- GrBatchOpt fBatchOpt;
- BatchTracker fBatch;
- SkSTArray<1, Geometry, true> fGeoData;
- const GrIndexBuffer* fLinesIndexBuffer;
- const GrIndexBuffer* fQuadsIndexBuffer;
-};
-
bool GrAAHairLinePathRenderer::onDrawPath(GrDrawTarget* target,
GrPipelineBuilder* pipelineBuilder,
GrColor color,
const SkMatrix& viewMatrix,
const SkPath& path,
const SkStrokeRec& stroke,
- bool) {
+ bool antiAlias) {
SkScalar hairlineCoverage;
uint8_t newCoverage = 0xff;
if (IsStrokeHairlineOrEquivalent(stroke, viewMatrix, &hairlineCoverage)) {
@@ -1146,22 +816,163 @@
SkIRect devClipBounds;
target->getClip()->getConservativeBounds(pipelineBuilder->getRenderTarget(), &devClipBounds);
- // This outset was determined experimentally by running skps and gms. It probably could be a
- // bit tighter
- SkRect devRect = path.getBounds();
- devRect.outset(7, 7);
- viewMatrix.mapRect(&devRect);
-
- AAHairlineBatch::Geometry geometry;
- geometry.fColor = color;
- geometry.fCoverage = newCoverage;
- geometry.fViewMatrix = viewMatrix;
- geometry.fPath = path;
- SkDEBUGCODE(geometry.fDevBounds = devRect;)
- geometry.fDevClipBounds = devClipBounds;
-
- GrBatch* batch = AAHairlineBatch::Create(geometry, fLinesIndexBuffer, fQuadsIndexBuffer);
- target->drawBatch(pipelineBuilder, batch, &devRect);
+ int lineCnt;
+ int quadCnt;
+ int conicCnt;
+ PREALLOC_PTARRAY(128) lines;
+ PREALLOC_PTARRAY(128) quads;
+ PREALLOC_PTARRAY(128) conics;
+ IntArray qSubdivs;
+ FloatArray cWeights;
+ quadCnt = generate_lines_and_quads(path, viewMatrix, devClipBounds,
+ &lines, &quads, &conics, &qSubdivs, &cWeights);
+ lineCnt = lines.count() / 2;
+ conicCnt = conics.count() / 3;
+
+ // createGeom transforms the geometry to device space when the matrix does not have
+ // perspective.
+ SkMatrix vm = viewMatrix;
+ SkMatrix invert = SkMatrix::I();
+ if (!viewMatrix.hasPerspective()) {
+ vm = SkMatrix::I();
+ if (!viewMatrix.invert(&invert)) {
+ return false;
+ }
+ }
+
+ // do lines first
+ if (lineCnt) {
+ GrDrawTarget::AutoReleaseGeometry arg;
+ SkRect devBounds;
+
+ GrPipelineBuilder::AutoRestoreEffects are(pipelineBuilder);
+ uint32_t gpFlags = GrDefaultGeoProcFactory::kPosition_GPType |
+ GrDefaultGeoProcFactory::kCoverage_GPType;
+ SkAutoTUnref<const GrGeometryProcessor> gp(GrDefaultGeoProcFactory::Create(gpFlags,
+ color,
+ vm,
+ invert,
+ false,
+ newCoverage));
+
+ if (!this->createLineGeom(target,
+ pipelineBuilder,
+ viewMatrix,
+ newCoverage,
+ gp->getVertexStride(),
+ &arg,
+ &devBounds,
+ path,
+ lines,
+ lineCnt)) {
+ return false;
+ }
+
+ // Check devBounds
+ SkASSERT(check_bounds<LineVertex>(viewMatrix.hasPerspective() ? viewMatrix : SkMatrix::I(),
+ devBounds,
+ arg.vertices(),
+ kLineSegNumVertices * lineCnt));
+
+ {
+ target->setIndexSourceToBuffer(fLinesIndexBuffer);
+ int lines = 0;
+ while (lines < lineCnt) {
+ int n = SkTMin(lineCnt - lines, kLineSegsNumInIdxBuffer);
+ target->drawIndexed(pipelineBuilder,
+ gp,
+ kTriangles_GrPrimitiveType,
+ kLineSegNumVertices*lines, // startV
+ 0, // startI
+ kLineSegNumVertices*n, // vCount
+ kIdxsPerLineSeg*n, // iCount
+ &devBounds);
+ lines += n;
+ }
+ }
+ }
+
+ // then quadratics/conics
+ if (quadCnt || conicCnt) {
+ GrDrawTarget::AutoReleaseGeometry arg;
+ SkRect devBounds;
+
+ if (!this->createBezierGeom(target,
+ pipelineBuilder,
+ viewMatrix,
+ &arg,
+ &devBounds,
+ path,
+ quads,
+ quadCnt,
+ conics,
+ conicCnt,
+ qSubdivs,
+ cWeights,
+ sizeof(BezierVertex))) {
+ return false;
+ }
+
+ // Check devBounds
+ SkASSERT(check_bounds<BezierVertex>(viewMatrix.hasPerspective() ? viewMatrix :
+ SkMatrix::I(),
+ devBounds,
+ arg.vertices(),
+ kQuadNumVertices * quadCnt +
+ kQuadNumVertices * conicCnt));
+
+ if (quadCnt > 0) {
+ SkAutoTUnref<GrGeometryProcessor> hairQuadProcessor(
+ GrQuadEffect::Create(color,
+ vm,
+ kHairlineAA_GrProcessorEdgeType,
+ *target->caps(),
+ invert,
+ newCoverage));
+ SkASSERT(hairQuadProcessor);
+ GrPipelineBuilder::AutoRestoreEffects are(pipelineBuilder);
+ target->setIndexSourceToBuffer(fQuadsIndexBuffer);
+
+ int quads = 0;
+ while (quads < quadCnt) {
+ int n = SkTMin(quadCnt - quads, kQuadsNumInIdxBuffer);
+ target->drawIndexed(pipelineBuilder,
+ hairQuadProcessor,
+ kTriangles_GrPrimitiveType,
+ kQuadNumVertices*quads, // startV
+ 0, // startI
+ kQuadNumVertices*n, // vCount
+ kIdxsPerQuad*n, // iCount
+ &devBounds);
+ quads += n;
+ }
+ }
+
+ if (conicCnt > 0) {
+ SkAutoTUnref<GrGeometryProcessor> hairConicProcessor(
+ GrConicEffect::Create(color, vm, kHairlineAA_GrProcessorEdgeType,
+ *target->caps(), invert, newCoverage));
+ SkASSERT(hairConicProcessor);
+ GrPipelineBuilder::AutoRestoreEffects are(pipelineBuilder);
+ target->setIndexSourceToBuffer(fQuadsIndexBuffer);
+
+ int conics = 0;
+ while (conics < conicCnt) {
+ int n = SkTMin(conicCnt - conics, kQuadsNumInIdxBuffer);
+ target->drawIndexed(pipelineBuilder,
+ hairConicProcessor,
+ kTriangles_GrPrimitiveType,
+ kQuadNumVertices*(quadCnt + conics), // startV
+ 0, // startI
+ kQuadNumVertices*n, // vCount
+ kIdxsPerQuad*n, // iCount
+ &devBounds);
+ conics += n;
+ }
+ }
+ }
+
+ target->resetIndexSource();
return true;
}
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