void draw(GrVertexBatch::Target* target, const GrGeometryProcessor* gp, int vertexCount,
size_t vertexStride, void* vertices, int indexCount, uint16_t* indices) const {
if (vertexCount == 0 || indexCount == 0) {
return;
}
const GrBuffer* vertexBuffer;
GrMesh mesh;
int firstVertex;
void* verts = target->makeVertexSpace(vertexStride, vertexCount, &vertexBuffer,
&firstVertex);
if (!verts) {
SkDebugf("Could not allocate vertices\n");
return;
}
memcpy(verts, vertices, vertexCount * vertexStride);
const GrBuffer* indexBuffer;
int firstIndex;
uint16_t* idxs = target->makeIndexSpace(indexCount, &indexBuffer, &firstIndex);
if (!idxs) {
SkDebugf("Could not allocate indices\n");
return;
}
memcpy(idxs, indices, indexCount * sizeof(uint16_t));
mesh.initIndexed(kTriangles_GrPrimitiveType, vertexBuffer, indexBuffer, firstVertex,
firstIndex, vertexCount, indexCount);
target->draw(gp, mesh);
}
void drawVertices(Target* target, const GrGeometryProcessor* gp, const GrBuffer* vb,
int firstVertex, int count) const {
SkASSERT(gp->getVertexStride() == sizeof(SkPoint));
GrPrimitiveType primitiveType = TESSELLATOR_WIREFRAME ? kLines_GrPrimitiveType
: kTriangles_GrPrimitiveType;
GrMesh mesh;
mesh.init(primitiveType, vb, firstVertex, count);
target->draw(gp, mesh);
}
void onPrepareDraws(Target* target) const override {
sk_sp<GrGeometryProcessor> gp;
{
using namespace GrDefaultGeoProcFactory;
Color color(this->color());
Coverage coverage(this->coverageIgnored() ? Coverage::kSolid_Type :
Coverage::kNone_Type);
LocalCoords localCoords(this->usesLocalCoords() ? LocalCoords::kUsePosition_Type :
LocalCoords::kUnused_Type);
gp = GrDefaultGeoProcFactory::Make(color, coverage, localCoords, this->viewMatrix());
}
size_t vertexStride = gp->getVertexStride();
SkASSERT(vertexStride == sizeof(GrDefaultGeoProcFactory::PositionAttr));
const Geometry& args = fGeoData[0];
int vertexCount = kVertsPerHairlineRect;
if (args.fStrokeWidth > 0) {
vertexCount = kVertsPerStrokeRect;
}
const GrBuffer* vertexBuffer;
int firstVertex;
void* verts = target->makeVertexSpace(vertexStride, vertexCount, &vertexBuffer,
&firstVertex);
if (!verts) {
SkDebugf("Could not allocate vertices\n");
return;
}
SkPoint* vertex = reinterpret_cast<SkPoint*>(verts);
GrPrimitiveType primType;
if (args.fStrokeWidth > 0) {
primType = kTriangleStrip_GrPrimitiveType;
init_stroke_rect_strip(vertex, args.fRect, args.fStrokeWidth);
} else {
// hairline
primType = kLineStrip_GrPrimitiveType;
vertex[0].set(args.fRect.fLeft, args.fRect.fTop);
vertex[1].set(args.fRect.fRight, args.fRect.fTop);
vertex[2].set(args.fRect.fRight, args.fRect.fBottom);
vertex[3].set(args.fRect.fLeft, args.fRect.fBottom);
vertex[4].set(args.fRect.fLeft, args.fRect.fTop);
}
GrMesh mesh;
mesh.init(primType, vertexBuffer, firstVertex, vertexCount);
target->draw(gp.get(), mesh);
}
void GrAtlasTextBatch::flush(GrVertexBatch::Target* target, FlushInfo* flushInfo) const {
GrMesh mesh;
int maxGlyphsPerDraw =
static_cast<int>(flushInfo->fIndexBuffer->gpuMemorySize() / sizeof(uint16_t) / 6);
mesh.initInstanced(kTriangles_GrPrimitiveType, flushInfo->fVertexBuffer,
flushInfo->fIndexBuffer, flushInfo->fVertexOffset,
kVerticesPerGlyph, kIndicesPerGlyph, flushInfo->fGlyphsToFlush,
maxGlyphsPerDraw);
target->draw(flushInfo->fGeometryProcessor.get(), mesh);
flushInfo->fVertexOffset += kVerticesPerGlyph * flushInfo->fGlyphsToFlush;
flushInfo->fGlyphsToFlush = 0;
}
void GrDrawVerticesOp::drawVertices(Target* target,
sk_sp<const GrGeometryProcessor> gp,
const GrBuffer* vertexBuffer,
int firstVertex,
const GrBuffer* indexBuffer,
int firstIndex) {
GrMesh* mesh = target->allocMesh(this->primitiveType());
if (this->isIndexed()) {
mesh->setIndexed(indexBuffer, fIndexCount, firstIndex, 0, fVertexCount - 1,
GrPrimitiveRestart::kNo);
} else {
mesh->setNonIndexedNonInstanced(fVertexCount);
}
mesh->setVertexData(vertexBuffer, firstVertex);
auto pipe = fHelper.makePipeline(target);
target->draw(std::move(gp), pipe.fPipeline, pipe.fFixedDynamicState, mesh);
}
void GrAtlasTextOp::flush(GrMeshDrawOp::Target* target, FlushInfo* flushInfo) const {
if (!flushInfo->fGlyphsToFlush) {
return;
}
auto atlasManager = target->atlasManager();
GrGeometryProcessor* gp = flushInfo->fGeometryProcessor.get();
GrMaskFormat maskFormat = this->maskFormat();
unsigned int numActiveProxies;
const sk_sp<GrTextureProxy>* proxies = atlasManager->getProxies(maskFormat, &numActiveProxies);
SkASSERT(proxies);
if (gp->numTextureSamplers() != (int) numActiveProxies) {
// During preparation the number of atlas pages has increased.
// Update the proxies used in the GP to match.
for (unsigned i = gp->numTextureSamplers(); i < numActiveProxies; ++i) {
flushInfo->fFixedDynamicState->fPrimitiveProcessorTextures[i] = proxies[i].get();
}
if (this->usesDistanceFields()) {
if (this->isLCD()) {
reinterpret_cast<GrDistanceFieldLCDTextGeoProc*>(gp)->addNewProxies(
proxies, numActiveProxies, GrSamplerState::ClampBilerp());
} else {
reinterpret_cast<GrDistanceFieldA8TextGeoProc*>(gp)->addNewProxies(
proxies, numActiveProxies, GrSamplerState::ClampBilerp());
}
} else {
GrSamplerState samplerState = fNeedsGlyphTransform ? GrSamplerState::ClampBilerp()
: GrSamplerState::ClampNearest();
reinterpret_cast<GrBitmapTextGeoProc*>(gp)->addNewProxies(proxies, numActiveProxies,
samplerState);
}
}
int maxGlyphsPerDraw =
static_cast<int>(flushInfo->fIndexBuffer->gpuMemorySize() / sizeof(uint16_t) / 6);
GrMesh* mesh = target->allocMesh(GrPrimitiveType::kTriangles);
mesh->setIndexedPatterned(flushInfo->fIndexBuffer.get(), kIndicesPerGlyph, kVerticesPerGlyph,
flushInfo->fGlyphsToFlush, maxGlyphsPerDraw);
mesh->setVertexData(flushInfo->fVertexBuffer.get(), flushInfo->fVertexOffset);
target->draw(flushInfo->fGeometryProcessor, flushInfo->fPipeline, flushInfo->fFixedDynamicState,
mesh);
flushInfo->fVertexOffset += kVerticesPerGlyph * flushInfo->fGlyphsToFlush;
flushInfo->fGlyphsToFlush = 0;
}
void onPrepareDraws(Target* target) const override {
sk_sp<GrGeometryProcessor> gp;
{
using namespace GrDefaultGeoProcFactory;
Color color(this->color());
Coverage coverage(this->coverage());
if (this->coverageIgnored()) {
coverage.fType = Coverage::kNone_Type;
}
LocalCoords localCoords(this->usesLocalCoords() ? LocalCoords::kUsePosition_Type :
LocalCoords::kUnused_Type);
gp = GrDefaultGeoProcFactory::Make(color, coverage, localCoords, this->viewMatrix());
}
size_t vertexStride = gp->getVertexStride();
SkASSERT(vertexStride == sizeof(SkPoint));
int instanceCount = fGeoData.count();
// compute number of vertices
int maxVertices = 0;
// We will use index buffers if we have multiple paths or one path with multiple contours
bool isIndexed = instanceCount > 1;
for (int i = 0; i < instanceCount; i++) {
const Geometry& args = fGeoData[i];
int contourCount;
maxVertices += GrPathUtils::worstCasePointCount(args.fPath, &contourCount,
args.fTolerance);
isIndexed = isIndexed || contourCount > 1;
}
if (maxVertices == 0 || maxVertices > ((int)SK_MaxU16 + 1)) {
//SkDebugf("Cannot render path (%d)\n", maxVertices);
return;
}
// determine primitiveType
int maxIndices = 0;
GrPrimitiveType primitiveType;
if (this->isHairline()) {
if (isIndexed) {
maxIndices = 2 * maxVertices;
primitiveType = kLines_GrPrimitiveType;
} else {
primitiveType = kLineStrip_GrPrimitiveType;
}
} else {
if (isIndexed) {
maxIndices = 3 * maxVertices;
primitiveType = kTriangles_GrPrimitiveType;
} else {
primitiveType = kTriangleFan_GrPrimitiveType;
}
}
// allocate vertex / index buffers
const GrBuffer* vertexBuffer;
int firstVertex;
void* verts = target->makeVertexSpace(vertexStride, maxVertices,
&vertexBuffer, &firstVertex);
if (!verts) {
SkDebugf("Could not allocate vertices\n");
return;
}
const GrBuffer* indexBuffer = nullptr;
int firstIndex = 0;
void* indices = nullptr;
if (isIndexed) {
indices = target->makeIndexSpace(maxIndices, &indexBuffer, &firstIndex);
if (!indices) {
SkDebugf("Could not allocate indices\n");
return;
}
}
// fill buffers
int vertexOffset = 0;
int indexOffset = 0;
for (int i = 0; i < instanceCount; i++) {
const Geometry& args = fGeoData[i];
int vertexCnt = 0;
int indexCnt = 0;
if (!this->createGeom(verts,
vertexOffset,
indices,
indexOffset,
&vertexCnt,
&indexCnt,
args.fPath,
args.fTolerance,
isIndexed)) {
return;
}
vertexOffset += vertexCnt;
indexOffset += indexCnt;
SkASSERT(vertexOffset <= maxVertices && indexOffset <= maxIndices);
}
GrMesh mesh;
if (isIndexed) {
mesh.initIndexed(primitiveType, vertexBuffer, indexBuffer, firstVertex, firstIndex,
vertexOffset, indexOffset);
} else {
mesh.init(primitiveType, vertexBuffer, firstVertex, vertexOffset);
}
target->draw(gp.get(), mesh);
// put back reserves
target->putBackIndices((size_t)(maxIndices - indexOffset));
target->putBackVertices((size_t)(maxVertices - vertexOffset), (size_t)vertexStride);
}
void AAHairlineOp::onPrepareDraws(Target* target) {
// Setup the viewmatrix and localmatrix for the GrGeometryProcessor.
SkMatrix invert;
if (!this->viewMatrix().invert(&invert)) {
return;
}
// we will transform to identity space if the viewmatrix does not have perspective
bool hasPerspective = this->viewMatrix().hasPerspective();
const SkMatrix* geometryProcessorViewM = &SkMatrix::I();
const SkMatrix* geometryProcessorLocalM = &invert;
const SkMatrix* toDevice = nullptr;
const SkMatrix* toSrc = nullptr;
if (hasPerspective) {
geometryProcessorViewM = &this->viewMatrix();
geometryProcessorLocalM = &SkMatrix::I();
toDevice = &this->viewMatrix();
toSrc = &invert;
}
// This is hand inlined for maximum performance.
PREALLOC_PTARRAY(128) lines;
PREALLOC_PTARRAY(128) quads;
PREALLOC_PTARRAY(128) conics;
IntArray qSubdivs;
FloatArray cWeights;
int quadCount = 0;
int instanceCount = fPaths.count();
bool convertConicsToQuads = !target->caps().shaderCaps()->floatIs32Bits();
for (int i = 0; i < instanceCount; i++) {
const PathData& args = fPaths[i];
quadCount += gather_lines_and_quads(args.fPath, args.fViewMatrix, args.fDevClipBounds,
args.fCapLength, convertConicsToQuads, &lines, &quads,
&conics, &qSubdivs, &cWeights);
}
int lineCount = lines.count() / 2;
int conicCount = conics.count() / 3;
int quadAndConicCount = conicCount + quadCount;
static constexpr int kMaxLines = SK_MaxS32 / kLineSegNumVertices;
static constexpr int kMaxQuadsAndConics = SK_MaxS32 / kQuadNumVertices;
if (lineCount > kMaxLines || quadAndConicCount > kMaxQuadsAndConics) {
return;
}
// do lines first
if (lineCount) {
sk_sp<GrGeometryProcessor> lineGP;
{
using namespace GrDefaultGeoProcFactory;
Color color(this->color());
LocalCoords localCoords(fHelper.usesLocalCoords() ? LocalCoords::kUsePosition_Type
: LocalCoords::kUnused_Type);
localCoords.fMatrix = geometryProcessorLocalM;
lineGP = GrDefaultGeoProcFactory::Make(target->caps().shaderCaps(),
color, Coverage::kAttribute_Type, localCoords,
*geometryProcessorViewM);
}
sk_sp<const GrBuffer> linesIndexBuffer = get_lines_index_buffer(target->resourceProvider());
sk_sp<const GrBuffer> vertexBuffer;
int firstVertex;
SkASSERT(sizeof(LineVertex) == lineGP->vertexStride());
int vertexCount = kLineSegNumVertices * lineCount;
LineVertex* verts = reinterpret_cast<LineVertex*>(target->makeVertexSpace(
sizeof(LineVertex), vertexCount, &vertexBuffer, &firstVertex));
if (!verts|| !linesIndexBuffer) {
SkDebugf("Could not allocate vertices\n");
return;
}
for (int i = 0; i < lineCount; ++i) {
add_line(&lines[2*i], toSrc, this->coverage(), &verts);
}
GrMesh* mesh = target->allocMesh(GrPrimitiveType::kTriangles);
mesh->setIndexedPatterned(std::move(linesIndexBuffer), kIdxsPerLineSeg, kLineSegNumVertices,
lineCount, kLineSegsNumInIdxBuffer);
mesh->setVertexData(std::move(vertexBuffer), firstVertex);
target->recordDraw(std::move(lineGP), mesh);
}
if (quadCount || conicCount) {
sk_sp<GrGeometryProcessor> quadGP(GrQuadEffect::Make(this->color(),
*geometryProcessorViewM,
GrClipEdgeType::kHairlineAA,
target->caps(),
*geometryProcessorLocalM,
fHelper.usesLocalCoords(),
this->coverage()));
sk_sp<GrGeometryProcessor> conicGP(GrConicEffect::Make(this->color(),
*geometryProcessorViewM,
GrClipEdgeType::kHairlineAA,
target->caps(),
*geometryProcessorLocalM,
fHelper.usesLocalCoords(),
this->coverage()));
sk_sp<const GrBuffer> vertexBuffer;
int firstVertex;
sk_sp<const GrBuffer> quadsIndexBuffer = get_quads_index_buffer(target->resourceProvider());
SkASSERT(sizeof(BezierVertex) == quadGP->vertexStride());
SkASSERT(sizeof(BezierVertex) == conicGP->vertexStride());
int vertexCount = kQuadNumVertices * quadAndConicCount;
void* vertices = target->makeVertexSpace(sizeof(BezierVertex), vertexCount, &vertexBuffer,
&firstVertex);
if (!vertices || !quadsIndexBuffer) {
SkDebugf("Could not allocate vertices\n");
return;
}
// Setup vertices
BezierVertex* bezVerts = reinterpret_cast<BezierVertex*>(vertices);
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, &bezVerts);
}
// Start Conics
for (int i = 0; i < conicCount; ++i) {
add_conics(&conics[3*i], cWeights[i], toDevice, toSrc, &bezVerts);
}
if (quadCount > 0) {
GrMesh* mesh = target->allocMesh(GrPrimitiveType::kTriangles);
mesh->setIndexedPatterned(quadsIndexBuffer, kIdxsPerQuad, kQuadNumVertices, quadCount,
kQuadsNumInIdxBuffer);
mesh->setVertexData(vertexBuffer, firstVertex);
target->recordDraw(std::move(quadGP), mesh);
firstVertex += quadCount * kQuadNumVertices;
}
if (conicCount > 0) {
GrMesh* mesh = target->allocMesh(GrPrimitiveType::kTriangles);
mesh->setIndexedPatterned(std::move(quadsIndexBuffer), kIdxsPerQuad, kQuadNumVertices,
conicCount, kQuadsNumInIdxBuffer);
mesh->setVertexData(std::move(vertexBuffer), firstVertex);
target->recordDraw(std::move(conicGP), mesh);
}
}
}
void AAHairlineBatch::onPrepareDraws(Target* target) const {
// Setup the viewmatrix and localmatrix for the GrGeometryProcessor.
SkMatrix invert;
if (!this->viewMatrix().invert(&invert)) {
return;
}
// we will transform to identity space if the viewmatrix does not have perspective
bool hasPerspective = this->viewMatrix().hasPerspective();
const SkMatrix* geometryProcessorViewM = &SkMatrix::I();
const SkMatrix* geometryProcessorLocalM = &invert;
const SkMatrix* toDevice = nullptr;
const SkMatrix* toSrc = nullptr;
if (hasPerspective) {
geometryProcessorViewM = &this->viewMatrix();
geometryProcessorLocalM = &SkMatrix::I();
toDevice = &this->viewMatrix();
toSrc = &invert;
}
// This is hand inlined for maximum performance.
PREALLOC_PTARRAY(128) lines;
PREALLOC_PTARRAY(128) quads;
PREALLOC_PTARRAY(128) conics;
IntArray qSubdivs;
FloatArray cWeights;
int quadCount = 0;
int instanceCount = fGeoData.count();
for (int i = 0; i < instanceCount; i++) {
const Geometry& args = fGeoData[i];
quadCount += gather_lines_and_quads(args.fPath, args.fViewMatrix, args.fDevClipBounds,
&lines, &quads, &conics, &qSubdivs, &cWeights);
}
int lineCount = lines.count() / 2;
int conicCount = conics.count() / 3;
// do lines first
if (lineCount) {
SkAutoTUnref<const GrGeometryProcessor> lineGP;
{
using namespace GrDefaultGeoProcFactory;
Color color(this->color());
Coverage coverage(Coverage::kAttribute_Type);
LocalCoords localCoords(this->usesLocalCoords() ? LocalCoords::kUsePosition_Type :
LocalCoords::kUnused_Type);
localCoords.fMatrix = geometryProcessorLocalM;
lineGP.reset(GrDefaultGeoProcFactory::Create(color, coverage, localCoords,
*geometryProcessorViewM));
}
SkAutoTUnref<const GrBuffer> linesIndexBuffer(
ref_lines_index_buffer(target->resourceProvider()));
const GrBuffer* vertexBuffer;
int firstVertex;
size_t vertexStride = lineGP->getVertexStride();
int vertexCount = kLineSegNumVertices * lineCount;
LineVertex* verts = reinterpret_cast<LineVertex*>(
target->makeVertexSpace(vertexStride, vertexCount, &vertexBuffer, &firstVertex));
if (!verts|| !linesIndexBuffer) {
SkDebugf("Could not allocate vertices\n");
return;
}
SkASSERT(lineGP->getVertexStride() == sizeof(LineVertex));
for (int i = 0; i < lineCount; ++i) {
add_line(&lines[2*i], toSrc, this->coverage(), &verts);
}
GrMesh mesh;
mesh.initInstanced(kTriangles_GrPrimitiveType, vertexBuffer, linesIndexBuffer,
firstVertex, kLineSegNumVertices, kIdxsPerLineSeg, lineCount,
kLineSegsNumInIdxBuffer);
target->draw(lineGP, mesh);
}
if (quadCount || conicCount) {
SkAutoTUnref<const GrGeometryProcessor> quadGP(
GrQuadEffect::Create(this->color(),
*geometryProcessorViewM,
kHairlineAA_GrProcessorEdgeType,
target->caps(),
*geometryProcessorLocalM,
this->usesLocalCoords(),
this->coverage()));
SkAutoTUnref<const GrGeometryProcessor> conicGP(
GrConicEffect::Create(this->color(),
*geometryProcessorViewM,
kHairlineAA_GrProcessorEdgeType,
target->caps(),
*geometryProcessorLocalM,
this->usesLocalCoords(),
this->coverage()));
const GrBuffer* vertexBuffer;
int firstVertex;
SkAutoTUnref<const GrBuffer> quadsIndexBuffer(
ref_quads_index_buffer(target->resourceProvider()));
size_t vertexStride = sizeof(BezierVertex);
int vertexCount = kQuadNumVertices * quadCount + kQuadNumVertices * conicCount;
void *vertices = target->makeVertexSpace(vertexStride, vertexCount,
&vertexBuffer, &firstVertex);
if (!vertices || !quadsIndexBuffer) {
SkDebugf("Could not allocate vertices\n");
return;
}
// Setup vertices
BezierVertex* bezVerts = reinterpret_cast<BezierVertex*>(vertices);
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, &bezVerts);
}
// Start Conics
for (int i = 0; i < conicCount; ++i) {
add_conics(&conics[3*i], cWeights[i], toDevice, toSrc, &bezVerts);
}
if (quadCount > 0) {
GrMesh mesh;
mesh.initInstanced(kTriangles_GrPrimitiveType, vertexBuffer, quadsIndexBuffer,
firstVertex, kQuadNumVertices, kIdxsPerQuad, quadCount,
kQuadsNumInIdxBuffer);
target->draw(quadGP, mesh);
firstVertex += quadCount * kQuadNumVertices;
}
if (conicCount > 0) {
GrMesh mesh;
mesh.initInstanced(kTriangles_GrPrimitiveType, vertexBuffer, quadsIndexBuffer,
firstVertex, kQuadNumVertices, kIdxsPerQuad, conicCount,
kQuadsNumInIdxBuffer);
target->draw(conicGP, mesh);
}
}
}
void onPrepareDraws(Target* target) const override {
SkMatrix invert;
if (fUsesLocalCoords && !fViewMatrix.invert(&invert)) {
SkDebugf("Could not invert viewmatrix\n");
return;
}
// Setup GrGeometryProcessors
SkAutoTUnref<GrPLSGeometryProcessor> triangleProcessor(
PLSAATriangleEffect::Create(invert, fUsesLocalCoords));
SkAutoTUnref<GrPLSGeometryProcessor> quadProcessor(
PLSQuadEdgeEffect::Create(invert, fUsesLocalCoords));
GrResourceProvider* rp = target->resourceProvider();
SkRect bounds;
this->bounds().roundOut(&bounds);
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 = &fViewMatrix;
// We avoid initializing the path unless we have to
const SkPath* pathPtr = &fPath;
SkTLazy<SkPath> tmpPath;
if (viewMatrix->hasPerspective()) {
SkPath* tmpPathPtr = tmpPath.init(*pathPtr);
tmpPathPtr->setIsVolatile(true);
tmpPathPtr->transform(*viewMatrix);
viewMatrix = &SkMatrix::I();
pathPtr = tmpPathPtr;
}
GrMesh mesh;
PLSVertices triVertices;
PLSVertices quadVertices;
if (!get_geometry(*pathPtr, *viewMatrix, triVertices, quadVertices, rp, bounds)) {
return;
}
if (triVertices.count()) {
const GrBuffer* 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];
}
mesh.init(kTriangles_GrPrimitiveType, triVertexBuffer, firstTriVertex,
triVertices.count());
target->draw(triangleProcessor, mesh);
}
if (quadVertices.count()) {
const GrBuffer* 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];
}
mesh.init(kTriangles_GrPrimitiveType, quadVertexBuffer, firstQuadVertex,
quadVertices.count());
target->draw(quadProcessor, mesh);
}
SkAutoTUnref<GrGeometryProcessor> finishProcessor(
PLSFinishEffect::Create(fColor,
pathPtr->getFillType() ==
SkPath::FillType::kEvenOdd_FillType,
invert,
fUsesLocalCoords));
const GrBuffer* 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 };
mesh.init(kTriangles_GrPrimitiveType, rectVertexBuffer, firstRectVertex,
kRectVertexCount);
target->draw(finishProcessor, mesh);
}
void onPrepareDraws(Target* target) const override {
#ifndef SK_IGNORE_LINEONLY_AA_CONVEX_PATH_OPTS
if (this->linesOnly()) {
this->prepareLinesOnlyDraws(target);
return;
}
#endif
int instanceCount = fGeoData.count();
SkMatrix invert;
if (this->usesLocalCoords() && !this->viewMatrix().invert(&invert)) {
SkDebugf("Could not invert viewmatrix\n");
return;
}
// Setup GrGeometryProcessor
sk_sp<GrGeometryProcessor> quadProcessor(
QuadEdgeEffect::Make(this->color(), invert, this->usesLocalCoords()));
// TODO generate all segments for all paths and use one vertex buffer
for (int i = 0; i < instanceCount; i++) {
const Geometry& args = fGeoData[i];
// 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;
}
int vertexCount;
int indexCount;
enum {
kPreallocSegmentCnt = 512 / sizeof(Segment),
kPreallocDrawCnt = 4,
};
SkSTArray<kPreallocSegmentCnt, Segment, true> segments;
SkPoint fanPt;
if (!get_segments(*pathPtr, *viewMatrix, &segments, &fanPt, &vertexCount,
&indexCount)) {
continue;
}
const GrBuffer* vertexBuffer;
int firstVertex;
size_t vertexStride = quadProcessor->getVertexStride();
QuadVertex* verts = reinterpret_cast<QuadVertex*>(target->makeVertexSpace(
vertexStride, vertexCount, &vertexBuffer, &firstVertex));
if (!verts) {
SkDebugf("Could not allocate vertices\n");
return;
}
const GrBuffer* indexBuffer;
int firstIndex;
uint16_t *idxs = target->makeIndexSpace(indexCount, &indexBuffer, &firstIndex);
if (!idxs) {
SkDebugf("Could not allocate indices\n");
return;
}
SkSTArray<kPreallocDrawCnt, Draw, true> draws;
create_vertices(segments, fanPt, &draws, verts, idxs);
GrMesh mesh;
for (int j = 0; j < draws.count(); ++j) {
const Draw& draw = draws[j];
mesh.initIndexed(kTriangles_GrPrimitiveType, vertexBuffer, indexBuffer,
firstVertex, firstIndex, draw.fVertexCnt, draw.fIndexCnt);
target->draw(quadProcessor.get(), mesh);
firstVertex += draw.fVertexCnt;
firstIndex += draw.fIndexCnt;
}
}
}
void prepareLinesOnlyDraws(Target* target) const {
bool canTweakAlphaForCoverage = this->canTweakAlphaForCoverage();
// Setup GrGeometryProcessor
sk_sp<GrGeometryProcessor> gp(create_fill_gp(canTweakAlphaForCoverage,
this->viewMatrix(),
this->usesLocalCoords(),
this->coverageIgnored()));
if (!gp) {
SkDebugf("Could not create GrGeometryProcessor\n");
return;
}
size_t vertexStride = gp->getVertexStride();
SkASSERT(canTweakAlphaForCoverage ?
vertexStride == sizeof(GrDefaultGeoProcFactory::PositionColorAttr) :
vertexStride == sizeof(GrDefaultGeoProcFactory::PositionColorCoverageAttr));
GrAAConvexTessellator tess;
int instanceCount = fGeoData.count();
for (int i = 0; i < instanceCount; i++) {
tess.rewind();
const Geometry& args = fGeoData[i];
if (!tess.tessellate(args.fViewMatrix, args.fPath)) {
continue;
}
const GrBuffer* vertexBuffer;
int firstVertex;
void* verts = target->makeVertexSpace(vertexStride, tess.numPts(), &vertexBuffer,
&firstVertex);
if (!verts) {
SkDebugf("Could not allocate vertices\n");
return;
}
const GrBuffer* indexBuffer;
int firstIndex;
uint16_t* idxs = target->makeIndexSpace(tess.numIndices(), &indexBuffer, &firstIndex);
if (!idxs) {
SkDebugf("Could not allocate indices\n");
return;
}
extract_verts(tess, verts, vertexStride, args.fColor, idxs, canTweakAlphaForCoverage);
GrMesh mesh;
mesh.initIndexed(kTriangles_GrPrimitiveType,
vertexBuffer, indexBuffer,
firstVertex, firstIndex,
tess.numPts(), tess.numIndices());
target->draw(gp.get(), mesh);
}
}
