void onPrepareDraws(Target* target) const override {
// construct a cache key from the path's genID and the view matrix
static const GrUniqueKey::Domain kDomain = GrUniqueKey::GenerateDomain();
GrUniqueKey key;
int clipBoundsSize32 =
fPath.isInverseFillType() ? sizeof(fClipBounds) / sizeof(uint32_t) : 0;
int strokeDataSize32 = fStroke.computeUniqueKeyFragmentData32Cnt();
GrUniqueKey::Builder builder(&key, kDomain, 2 + clipBoundsSize32 + strokeDataSize32);
builder[0] = fPath.getGenerationID();
builder[1] = fPath.getFillType();
// For inverse fills, the tessellation is dependent on clip bounds.
if (fPath.isInverseFillType()) {
memcpy(&builder[2], &fClipBounds, sizeof(fClipBounds));
}
fStroke.asUniqueKeyFragment(&builder[2 + clipBoundsSize32]);
builder.finish();
GrResourceProvider* rp = target->resourceProvider();
SkAutoTUnref<GrVertexBuffer> vertexBuffer(rp->findAndRefTByUniqueKey<GrVertexBuffer>(key));
int actualCount;
SkScalar screenSpaceTol = GrPathUtils::kDefaultTolerance;
SkScalar tol = GrPathUtils::scaleToleranceToSrc(
screenSpaceTol, fViewMatrix, fPath.getBounds());
if (!cache_match(vertexBuffer.get(), tol, &actualCount)) {
bool canMapVB = GrCaps::kNone_MapFlags != target->caps().mapBufferFlags();
actualCount = this->tessellate(&key, rp, vertexBuffer, canMapVB);
}
if (actualCount == 0) {
return;
}
SkAutoTUnref<const GrGeometryProcessor> gp;
{
using namespace GrDefaultGeoProcFactory;
Color color(fColor);
LocalCoords localCoords(fPipelineInfo.readsLocalCoords() ?
LocalCoords::kUsePosition_Type :
LocalCoords::kUnused_Type);
Coverage::Type coverageType;
if (fPipelineInfo.readsCoverage()) {
coverageType = Coverage::kSolid_Type;
} else {
coverageType = Coverage::kNone_Type;
}
Coverage coverage(coverageType);
gp.reset(GrDefaultGeoProcFactory::Create(color, coverage, localCoords,
fViewMatrix));
}
target->initDraw(gp, this->pipeline());
SkASSERT(gp->getVertexStride() == sizeof(SkPoint));
GrPrimitiveType primitiveType = TESSELLATOR_WIREFRAME ? kLines_GrPrimitiveType
: kTriangles_GrPrimitiveType;
GrVertices vertices;
vertices.init(primitiveType, vertexBuffer.get(), 0, actualCount);
target->draw(vertices);
}
void onPrepareDraws(Target* target) const override {
SkAutoTUnref<const 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.reset(GrDefaultGeoProcFactory::Create(color, coverage, localCoords,
this->viewMatrix()));
}
target->initDraw(gp, this->pipeline());
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 GrVertexBuffer* 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);
}
GrVertices vertices;
vertices.init(primType, vertexBuffer, firstVertex, vertexCount);
target->draw(vertices);
}
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) override {
SkAutoTUnref<const 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.reset(GrDefaultGeoProcFactory::Create(color, coverage, localCoords,
this->viewMatrix()));
}
size_t vertexStride = gp->getVertexStride();
SkASSERT(vertexStride == sizeof(SkPoint));
target->initDraw(gp, this->pipeline());
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++) {
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 GrVertexBuffer* vertexBuffer;
int firstVertex;
void* verts = target->makeVertexSpace(vertexStride, maxVertices,
&vertexBuffer, &firstVertex);
if (!verts) {
SkDebugf("Could not allocate vertices\n");
return;
}
const GrIndexBuffer* 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++) {
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);
}
GrVertices vertices;
if (isIndexed) {
vertices.initIndexed(primitiveType, vertexBuffer, indexBuffer, firstVertex, firstIndex,
vertexOffset, indexOffset);
} else {
vertices.init(primitiveType, vertexBuffer, firstVertex, vertexOffset);
}
target->draw(vertices);
// put back reserves
target->putBackIndices((size_t)(maxIndices - indexOffset));
target->putBackVertices((size_t)(maxVertices - vertexOffset), (size_t)vertexStride);
}
void GrAtlasTextBatch::onPrepareDraws(Target* target) const {
// if we have RGB, then we won't have any SkShaders so no need to use a localmatrix.
// TODO actually only invert if we don't have RGBA
SkMatrix localMatrix;
if (this->usesLocalCoords() && !this->viewMatrix().invert(&localMatrix)) {
SkDebugf("Cannot invert viewmatrix\n");
return;
}
GrTexture* texture = fFontCache->getTexture(this->maskFormat());
if (!texture) {
SkDebugf("Could not allocate backing texture for atlas\n");
return;
}
GrMaskFormat maskFormat = this->maskFormat();
SkAutoTUnref<const GrGeometryProcessor> gp;
if (this->usesDistanceFields()) {
gp.reset(this->setupDfProcessor(this->viewMatrix(), fFilteredColor, this->color(),
texture));
} else {
GrTextureParams params(SkShader::kClamp_TileMode, GrTextureParams::kNone_FilterMode);
gp.reset(GrBitmapTextGeoProc::Create(this->color(),
texture,
params,
maskFormat,
localMatrix,
this->usesLocalCoords()));
}
FlushInfo flushInfo;
flushInfo.fGlyphsToFlush = 0;
size_t vertexStride = gp->getVertexStride();
SkASSERT(vertexStride == GrAtlasTextBlob::GetVertexStride(maskFormat));
target->initDraw(gp);
int glyphCount = this->numGlyphs();
const GrBuffer* vertexBuffer;
void* vertices = target->makeVertexSpace(vertexStride,
glyphCount * kVerticesPerGlyph,
&vertexBuffer,
&flushInfo.fVertexOffset);
flushInfo.fVertexBuffer.reset(SkRef(vertexBuffer));
flushInfo.fIndexBuffer.reset(target->resourceProvider()->refQuadIndexBuffer());
if (!vertices || !flushInfo.fVertexBuffer) {
SkDebugf("Could not allocate vertices\n");
return;
}
unsigned char* currVertex = reinterpret_cast<unsigned char*>(vertices);
// We cache some values to avoid going to the glyphcache for the same fontScaler twice
// in a row
const SkDescriptor* desc = nullptr;
SkGlyphCache* cache = nullptr;
GrFontScaler* scaler = nullptr;
SkTypeface* typeface = nullptr;
GrBlobRegenHelper helper(this, target, &flushInfo, gp);
for (int i = 0; i < fGeoCount; i++) {
const Geometry& args = fGeoData[i];
Blob* blob = args.fBlob;
size_t byteCount;
void* blobVertices;
int subRunGlyphCount;
blob->regenInBatch(target, fFontCache, &helper, args.fRun, args.fSubRun, &cache,
&typeface, &scaler, &desc, vertexStride, args.fViewMatrix, args.fX,
args.fY, args.fColor, &blobVertices, &byteCount, &subRunGlyphCount);
// now copy all vertices
memcpy(currVertex, blobVertices, byteCount);
#ifdef SK_DEBUG
// bounds sanity check
SkRect rect;
rect.setLargestInverted();
SkPoint* vertex = (SkPoint*) ((char*)blobVertices);
rect.growToInclude(vertex, vertexStride, kVerticesPerGlyph * subRunGlyphCount);
if (this->usesDistanceFields()) {
args.fViewMatrix.mapRect(&rect);
}
SkASSERT(fBounds.contains(rect));
#endif
currVertex += byteCount;
}
// Make sure to attach the last cache if applicable
if (cache) {
SkGlyphCache::AttachCache(cache);
}
this->flush(target, &flushInfo);
}