///
/// Function which computes 6 view matrix to get the cube projection from a looak position
/// @return a vector of 6 position
///
std::vector<glm::mat4x4> CGBuffer::getViewProjMatrices(const glm::vec3 & vCenter, const glm::vec3 & vAtPosition, const glm::vec3 & vUpCenter)
{
std::vector<glm::mat4x4> matrices(6);
glm::vec3 vDistance = vAtPosition - vCenter;
glm::vec3 vTemp, pZPositive, pYPositive;
float lenght;
matrices[0] = glm::lookAt(vCenter, vAtPosition, -vUpCenter);
pZPositive = vCenter - vDistance;
matrices[1] = glm::lookAt(vCenter , pZPositive, -vUpCenter);
//negative X
lenght = glm::length(vDistance);
vTemp = glm::cross(glm::normalize(vDistance), vUpCenter) * lenght;
matrices[2] = glm::lookAt(vCenter , vCenter + vTemp, -glm::cross(glm::normalize(vTemp), glm::normalize(vDistance)));
matrices[3] = glm::lookAt(vCenter , vCenter - vTemp, -glm::cross(glm::normalize(vTemp), glm::normalize(vDistance)));
//negative Y
glm::vec3 value = glm::cross(glm::normalize(vDistance), vUpCenter);
pYPositive = glm::cross(glm::normalize(vDistance), value);
matrices[4] = glm::lookAt(vCenter , vCenter + pYPositive, glm::normalize(vDistance));
matrices[5] = glm::lookAt(vCenter , vCenter - pYPositive, -glm::normalize(vDistance));
std::vector<glm::mat4x4> mSorted(6); //sorting according to the GL_TEXTURE_CUBE_MAP
mSorted[0] = matrices[2];
mSorted[1] = matrices[3];
mSorted[2] = matrices[5];
mSorted[3] = matrices[4];
mSorted[4] = matrices[1];
mSorted[5] = matrices[0];
return mSorted;
}
void GroupImpl::updateMatrices( )
{
dp::util::ProfileEntry p("cull::updateMatrices");
if ( m_matricesChanged )
{
if ( ! m_matricesBuffer )
{
m_matricesBuffer = dp::gl::Buffer::create(dp::gl::Buffer::CORE, GL_STATIC_DRAW, GL_SHADER_STORAGE_BUFFER);
}
// copy over matrices
m_matricesBuffer->setSize(getMatricesCount() * sizeof( dp::math::Mat44f ));
dp::gl::MappedBuffer<dp::math::Mat44f> matrices( m_matricesBuffer, GL_MAP_WRITE_BIT );
char const* basePtr = reinterpret_cast<char const*>(getMatrices());
for ( size_t index = 0; index < getMatricesCount(); ++index )
{
dp::math::Mat44f const& modelView = reinterpret_cast<dp::math::Mat44f const&>(*(basePtr + index * getMatricesStride()));
matrices[index] = modelView;
}
m_matricesChanged = false;
}
else
{
struct MatrixUpdater
{
MatrixUpdater( char const* matricesInBasePtr, size_t matricesInStride )
: m_matricesInBasePtr( matricesInBasePtr )
, m_matricesInStride( matricesInStride )
{
}
void operator()( size_t index )
{
glBufferSubData( GL_SHADER_STORAGE_BUFFER, index * sizeof(dp::math::Mat44f), sizeof(dp::math::Mat44f), m_matricesInBasePtr + index * m_matricesInStride );
}
private:
char const* m_matricesInBasePtr;
size_t m_matricesInStride;
};
bind( GL_SHADER_STORAGE_BUFFER, m_matricesBuffer );
MatrixUpdater matrixUpdater( reinterpret_cast<char const*>(getMatrices()), getMatricesStride() );
m_dirtyMatrices.traverseBits( matrixUpdater );
}
m_dirtyMatrices.clear();
}
size_t SkPictureRecord::size() const {
size_t result = 0;
size_t sizeData;
bitmaps(&sizeData);
result += sizeData;
matrices(&sizeData);
result += sizeData;
paints(&sizeData);
result += sizeData;
paths(&sizeData);
result += sizeData;
pictures(&sizeData);
result += sizeData;
regions(&sizeData);
result += sizeData;
result += streamlen();
return result;
}
void ScatterResidual<PHX::MyTraits::Jacobian, Traits>::
evaluateFields(typename Traits::EvalData workset)
{
std::vector<Element_Linear2D>::iterator element = workset.begin;
std::size_t cell = 0;
for (; element != workset.end; ++element,++cell) {
// Sum element residual and Jacobian into global residual, Jacobian
// Loop over nodes in element
int row, col;
int lrow, lcol;
for (int node_row = 0; node_row < num_nodes; node_row++) {
int row_dim;
int num_block_entries;
int* block_indices;
Jac->BeginExtractMyBlockRowView(Jac->LRID(element->globalNodeId(node_row)),row_dim, num_block_entries,block_indices);
std::vector<Epetra_SerialDenseMatrix*> matrices(num_block_entries);
for (std::size_t i = 0; i < matrices.size(); ++i)
Jac->ExtractEntryView(matrices[i]);
// Loop over equations per node
for (int eq_row = 0; eq_row < num_eq; eq_row++) {
lrow = num_eq * node_row + eq_row;
// Global row
row = static_cast<int>( f->Map().LID(element->globalNodeId(node_row)) * num_eq + eq_row);
// Sum residual
if (f != Teuchos::null)
//f->SumIntoGlobalValue(row, 0, val[eq_row](cell,node_row).val());
(*f)[row] += val[eq_row](cell,node_row).val();
// std::cout << "val[" << eq_row << "](" << cell << "," << node_row << ") = "
// << val[eq_row](cell,node_row).val() << std::endl;
// Check derivative array is nonzero
if (val[eq_row](cell,node_row).hasFastAccess()) {
// Loop over nodes in element
for (int node_col=0; node_col<num_nodes; node_col++){
// Loop over equations per node
for (int eq_col=0; eq_col<num_eq; eq_col++) {
lcol = num_eq * node_col + eq_col;
// Global column
col = static_cast<int>(Jac->LCID(element->globalNodeId(node_col)) * num_eq + eq_col);
// Sum Jacobian
Epetra_SerialDenseMatrix* block = 0;
for (int i = 0; i < num_block_entries; ++i) {
if ( block_indices[i] == (Jac->LCID(element->globalNodeId(node_col))) )
block = matrices[i];
}
TEUCHOS_TEST_FOR_EXCEPTION(block == 0, std::logic_error,"Failed to find block column index for this entry!");
(*block)(eq_row,eq_col) += val[eq_row](cell,node_row).fastAccessDx(lcol);
// Jac->SumIntoGlobalValues(row, 1,
// &(val[eq_row](cell,node_row).fastAccessDx(lcol)),
// &col);
} // column equations
} // column nodes
} // has fast access
} // row equations
} // row node
} // element
}
void SkPicturePlayback::handleOp(SkReadBuffer* reader,
DrawType op,
uint32_t size,
SkCanvas* canvas,
const SkMatrix& initialMatrix) {
#define BREAK_ON_READ_ERROR(r) if (!r->isValid()) break
switch (op) {
case NOOP: {
SkASSERT(size >= 4);
reader->skip(size - 4);
} break;
case FLUSH:
canvas->flush();
break;
case CLIP_PATH: {
const SkPath& path = fPictureData->getPath(reader);
uint32_t packed = reader->readInt();
SkClipOp clipOp = ClipParams_unpackRegionOp(reader, packed);
bool doAA = ClipParams_unpackDoAA(packed);
size_t offsetToRestore = reader->readInt();
validate_offsetToRestore(reader, offsetToRestore);
BREAK_ON_READ_ERROR(reader);
canvas->clipPath(path, clipOp, doAA);
if (canvas->isClipEmpty() && offsetToRestore) {
reader->skip(offsetToRestore - reader->offset());
}
} break;
case CLIP_REGION: {
SkRegion region;
reader->readRegion(®ion);
uint32_t packed = reader->readInt();
SkClipOp clipOp = ClipParams_unpackRegionOp(reader, packed);
size_t offsetToRestore = reader->readInt();
validate_offsetToRestore(reader, offsetToRestore);
BREAK_ON_READ_ERROR(reader);
canvas->clipRegion(region, clipOp);
if (canvas->isClipEmpty() && offsetToRestore) {
reader->skip(offsetToRestore - reader->offset());
}
} break;
case CLIP_RECT: {
SkRect rect;
reader->readRect(&rect);
uint32_t packed = reader->readInt();
SkClipOp clipOp = ClipParams_unpackRegionOp(reader, packed);
bool doAA = ClipParams_unpackDoAA(packed);
size_t offsetToRestore = reader->readInt();
validate_offsetToRestore(reader, offsetToRestore);
BREAK_ON_READ_ERROR(reader);
canvas->clipRect(rect, clipOp, doAA);
if (canvas->isClipEmpty() && offsetToRestore) {
reader->skip(offsetToRestore - reader->offset());
}
} break;
case CLIP_RRECT: {
SkRRect rrect;
reader->readRRect(&rrect);
uint32_t packed = reader->readInt();
SkClipOp clipOp = ClipParams_unpackRegionOp(reader, packed);
bool doAA = ClipParams_unpackDoAA(packed);
size_t offsetToRestore = reader->readInt();
validate_offsetToRestore(reader, offsetToRestore);
BREAK_ON_READ_ERROR(reader);
canvas->clipRRect(rrect, clipOp, doAA);
if (canvas->isClipEmpty() && offsetToRestore) {
reader->skip(offsetToRestore - reader->offset());
}
} break;
case PUSH_CULL: break; // Deprecated, safe to ignore both push and pop.
case POP_CULL: break;
case CONCAT: {
SkMatrix matrix;
reader->readMatrix(&matrix);
BREAK_ON_READ_ERROR(reader);
canvas->concat(matrix);
break;
}
case DRAW_ANNOTATION: {
SkRect rect;
reader->readRect(&rect);
SkString key;
reader->readString(&key);
sk_sp<SkData> data = reader->readByteArrayAsData();
BREAK_ON_READ_ERROR(reader);
SkASSERT(data);
canvas->drawAnnotation(rect, key.c_str(), data.get());
} break;
case DRAW_ARC: {
const SkPaint* paint = fPictureData->getPaint(reader);
SkRect rect;
reader->readRect(&rect);
SkScalar startAngle = reader->readScalar();
SkScalar sweepAngle = reader->readScalar();
int useCenter = reader->readInt();
BREAK_ON_READ_ERROR(reader);
if (paint) {
canvas->drawArc(rect, startAngle, sweepAngle, SkToBool(useCenter), *paint);
}
} break;
case DRAW_ATLAS: {
const SkPaint* paint = fPictureData->getPaint(reader);
const SkImage* atlas = fPictureData->getImage(reader);
const uint32_t flags = reader->readUInt();
const int count = reader->readUInt();
const SkRSXform* xform = (const SkRSXform*)reader->skip(count, sizeof(SkRSXform));
const SkRect* tex = (const SkRect*)reader->skip(count, sizeof(SkRect));
const SkColor* colors = nullptr;
SkBlendMode mode = SkBlendMode::kDst;
if (flags & DRAW_ATLAS_HAS_COLORS) {
colors = (const SkColor*)reader->skip(count, sizeof(SkColor));
mode = (SkBlendMode)reader->readUInt();
}
const SkRect* cull = nullptr;
if (flags & DRAW_ATLAS_HAS_CULL) {
cull = (const SkRect*)reader->skip(sizeof(SkRect));
}
BREAK_ON_READ_ERROR(reader);
canvas->drawAtlas(atlas, xform, tex, colors, count, mode, cull, paint);
} break;
case DRAW_CLEAR: {
auto c = reader->readInt();
BREAK_ON_READ_ERROR(reader);
canvas->clear(c);
} break;
case DRAW_DATA: {
// This opcode is now dead, just need to skip it for backwards compatibility
size_t length = reader->readInt();
(void)reader->skip(length);
// skip handles padding the read out to a multiple of 4
} break;
case DRAW_DRAWABLE: {
auto* d = fPictureData->getDrawable(reader);
BREAK_ON_READ_ERROR(reader);
canvas->drawDrawable(d);
} break;
case DRAW_DRAWABLE_MATRIX: {
SkMatrix matrix;
reader->readMatrix(&matrix);
SkDrawable* drawable = fPictureData->getDrawable(reader);
BREAK_ON_READ_ERROR(reader);
canvas->drawDrawable(drawable, &matrix);
} break;
case DRAW_DRRECT: {
const SkPaint* paint = fPictureData->getPaint(reader);
SkRRect outer, inner;
reader->readRRect(&outer);
reader->readRRect(&inner);
BREAK_ON_READ_ERROR(reader);
if (paint) {
canvas->drawDRRect(outer, inner, *paint);
}
} break;
case DRAW_EDGEAA_QUAD: {
SkRect rect;
reader->readRect(&rect);
SkCanvas::QuadAAFlags aaFlags = static_cast<SkCanvas::QuadAAFlags>(reader->read32());
SkColor color = reader->read32();
SkBlendMode blend = static_cast<SkBlendMode>(reader->read32());
bool hasClip = reader->readInt();
SkPoint* clip = nullptr;
if (hasClip) {
clip = (SkPoint*) reader->skip(4, sizeof(SkPoint));
}
BREAK_ON_READ_ERROR(reader);
canvas->experimental_DrawEdgeAAQuad(rect, clip, aaFlags, color, blend);
} break;
case DRAW_EDGEAA_IMAGE_SET: {
static const size_t kEntryReadSize =
4 * sizeof(uint32_t) + 2 * sizeof(SkRect) + sizeof(SkScalar);
static const size_t kMatrixSize = 9 * sizeof(SkScalar); // != sizeof(SkMatrix)
int cnt = reader->readInt();
if (!reader->validate(cnt >= 0)) {
break;
}
const SkPaint* paint = fPictureData->getPaint(reader);
SkCanvas::SrcRectConstraint constraint =
static_cast<SkCanvas::SrcRectConstraint>(reader->readInt());
if (!reader->validate(SkSafeMath::Mul(cnt, kEntryReadSize) <= reader->available())) {
break;
}
// Track minimum necessary clip points and matrices that must be provided to satisfy
// the entries.
int expectedClips = 0;
int maxMatrixIndex = -1;
SkAutoTArray<SkCanvas::ImageSetEntry> set(cnt);
for (int i = 0; i < cnt && reader->isValid(); ++i) {
set[i].fImage = sk_ref_sp(fPictureData->getImage(reader));
reader->readRect(&set[i].fSrcRect);
reader->readRect(&set[i].fDstRect);
set[i].fMatrixIndex = reader->readInt();
set[i].fAlpha = reader->readScalar();
set[i].fAAFlags = reader->readUInt();
set[i].fHasClip = reader->readInt();
expectedClips += set[i].fHasClip ? 1 : 0;
if (set[i].fMatrixIndex > maxMatrixIndex) {
maxMatrixIndex = set[i].fMatrixIndex;
}
}
int dstClipCount = reader->readInt();
SkPoint* dstClips = nullptr;
if (!reader->validate(expectedClips <= dstClipCount)) {
// Entries request more dstClip points than are provided in the buffer
break;
} else if (dstClipCount > 0) {
dstClips = (SkPoint*) reader->skip(dstClipCount, sizeof(SkPoint));
if (dstClips == nullptr) {
// Not enough bytes remaining so the reader has been invalidated
break;
}
}
int matrixCount = reader->readInt();
if (!reader->validate((maxMatrixIndex + 1) <= matrixCount) ||
!reader->validate(
SkSafeMath::Mul(matrixCount, kMatrixSize) <= reader->available())) {
// Entries access out-of-bound matrix indices, given provided matrices or
// there aren't enough bytes to provide that many matrices
break;
}
SkTArray<SkMatrix> matrices(matrixCount);
for (int i = 0; i < matrixCount && reader->isValid(); ++i) {
reader->readMatrix(&matrices.push_back());
}
BREAK_ON_READ_ERROR(reader);
canvas->experimental_DrawEdgeAAImageSet(set.get(), cnt, dstClips, matrices.begin(),
paint, constraint);
} break;
case DRAW_IMAGE: {
const SkPaint* paint = fPictureData->getPaint(reader);
const SkImage* image = fPictureData->getImage(reader);
SkPoint loc;
reader->readPoint(&loc);
BREAK_ON_READ_ERROR(reader);
canvas->drawImage(image, loc.fX, loc.fY, paint);
} break;
case DRAW_IMAGE_LATTICE: {
const SkPaint* paint = fPictureData->getPaint(reader);
const SkImage* image = fPictureData->getImage(reader);
SkCanvas::Lattice lattice;
(void)SkCanvasPriv::ReadLattice(*reader, &lattice);
const SkRect* dst = reader->skipT<SkRect>();
BREAK_ON_READ_ERROR(reader);
canvas->drawImageLattice(image, lattice, *dst, paint);
} break;
case DRAW_IMAGE_NINE: {
const SkPaint* paint = fPictureData->getPaint(reader);
const SkImage* image = fPictureData->getImage(reader);
SkIRect center;
reader->readIRect(¢er);
SkRect dst;
reader->readRect(&dst);
BREAK_ON_READ_ERROR(reader);
canvas->drawImageNine(image, center, dst, paint);
} break;
case DRAW_IMAGE_RECT: {
const SkPaint* paint = fPictureData->getPaint(reader);
const SkImage* image = fPictureData->getImage(reader);
SkRect storage;
const SkRect* src = get_rect_ptr(reader, &storage); // may be null
SkRect dst;
reader->readRect(&dst); // required
// DRAW_IMAGE_RECT_STRICT assumes this constraint, and doesn't store it
SkCanvas::SrcRectConstraint constraint = SkCanvas::kStrict_SrcRectConstraint;
if (DRAW_IMAGE_RECT == op) {
// newer op-code stores the constraint explicitly
constraint = (SkCanvas::SrcRectConstraint)reader->readInt();
}
BREAK_ON_READ_ERROR(reader);
canvas->legacy_drawImageRect(image, src, dst, paint, constraint);
} break;
case DRAW_OVAL: {
const SkPaint* paint = fPictureData->getPaint(reader);
SkRect rect;
reader->readRect(&rect);
BREAK_ON_READ_ERROR(reader);
if (paint) {
canvas->drawOval(rect, *paint);
}
} break;
case DRAW_PAINT: {
const SkPaint* paint = fPictureData->getPaint(reader);
BREAK_ON_READ_ERROR(reader);
if (paint) {
canvas->drawPaint(*paint);
}
} break;
case DRAW_BEHIND_PAINT: {
const SkPaint* paint = fPictureData->getPaint(reader);
BREAK_ON_READ_ERROR(reader);
if (paint) {
SkCanvasPriv::DrawBehind(canvas, *paint);
}
} break;
case DRAW_PATCH: {
const SkPaint* paint = fPictureData->getPaint(reader);
const SkPoint* cubics = (const SkPoint*)reader->skip(SkPatchUtils::kNumCtrlPts,
sizeof(SkPoint));
uint32_t flag = reader->readInt();
const SkColor* colors = nullptr;
if (flag & DRAW_VERTICES_HAS_COLORS) {
colors = (const SkColor*)reader->skip(SkPatchUtils::kNumCorners, sizeof(SkColor));
}
const SkPoint* texCoords = nullptr;
if (flag & DRAW_VERTICES_HAS_TEXS) {
texCoords = (const SkPoint*)reader->skip(SkPatchUtils::kNumCorners,
sizeof(SkPoint));
}
SkBlendMode bmode = SkBlendMode::kModulate;
if (flag & DRAW_VERTICES_HAS_XFER) {
unsigned mode = reader->readInt();
if (mode <= (unsigned)SkBlendMode::kLastMode) {
bmode = (SkBlendMode)mode;
}
}
BREAK_ON_READ_ERROR(reader);
if (paint) {
canvas->drawPatch(cubics, colors, texCoords, bmode, *paint);
}
} break;
case DRAW_PATH: {
const SkPaint* paint = fPictureData->getPaint(reader);
const auto& path = fPictureData->getPath(reader);
BREAK_ON_READ_ERROR(reader);
if (paint) {
canvas->drawPath(path, *paint);
}
} break;
case DRAW_PICTURE: {
const auto* pic = fPictureData->getPicture(reader);
BREAK_ON_READ_ERROR(reader);
canvas->drawPicture(pic);
} break;
case DRAW_PICTURE_MATRIX_PAINT: {
const SkPaint* paint = fPictureData->getPaint(reader);
SkMatrix matrix;
reader->readMatrix(&matrix);
const SkPicture* pic = fPictureData->getPicture(reader);
BREAK_ON_READ_ERROR(reader);
canvas->drawPicture(pic, &matrix, paint);
} break;
case DRAW_POINTS: {
const SkPaint* paint = fPictureData->getPaint(reader);
SkCanvas::PointMode mode = (SkCanvas::PointMode)reader->readInt();
size_t count = reader->readInt();
const SkPoint* pts = (const SkPoint*)reader->skip(count, sizeof(SkPoint));
BREAK_ON_READ_ERROR(reader);
if (paint) {
canvas->drawPoints(mode, count, pts, *paint);
}
} break;
case DRAW_RECT: {
const SkPaint* paint = fPictureData->getPaint(reader);
SkRect rect;
reader->readRect(&rect);
BREAK_ON_READ_ERROR(reader);
if (paint) {
canvas->drawRect(rect, *paint);
}
} break;
case DRAW_REGION: {
const SkPaint* paint = fPictureData->getPaint(reader);
SkRegion region;
reader->readRegion(®ion);
BREAK_ON_READ_ERROR(reader);
if (paint) {
canvas->drawRegion(region, *paint);
}
} break;
case DRAW_RRECT: {
const SkPaint* paint = fPictureData->getPaint(reader);
SkRRect rrect;
reader->readRRect(&rrect);
BREAK_ON_READ_ERROR(reader);
if (paint) {
canvas->drawRRect(rrect, *paint);
}
} break;
case DRAW_SHADOW_REC: {
const auto& path = fPictureData->getPath(reader);
SkDrawShadowRec rec;
reader->readPoint3(&rec.fZPlaneParams);
reader->readPoint3(&rec.fLightPos);
rec.fLightRadius = reader->readScalar();
if (reader->isVersionLT(SkReadBuffer::kTwoColorDrawShadow_Version)) {
SkScalar ambientAlpha = reader->readScalar();
SkScalar spotAlpha = reader->readScalar();
SkColor color = reader->read32();
rec.fAmbientColor = SkColorSetA(color, SkColorGetA(color)*ambientAlpha);
rec.fSpotColor = SkColorSetA(color, SkColorGetA(color)*spotAlpha);
} else {
rec.fAmbientColor = reader->read32();
rec.fSpotColor = reader->read32();
}
rec.fFlags = reader->read32();
BREAK_ON_READ_ERROR(reader);
canvas->private_draw_shadow_rec(path, rec);
} break;
case DRAW_TEXT_BLOB: {
const SkPaint* paint = fPictureData->getPaint(reader);
const SkTextBlob* blob = fPictureData->getTextBlob(reader);
SkScalar x = reader->readScalar();
SkScalar y = reader->readScalar();
BREAK_ON_READ_ERROR(reader);
if (paint) {
canvas->drawTextBlob(blob, x, y, *paint);
}
} break;
case DRAW_VERTICES_OBJECT: {
const SkPaint* paint = fPictureData->getPaint(reader);
const SkVertices* vertices = fPictureData->getVertices(reader);
const int boneCount = reader->readInt();
const SkVertices::Bone* bones = boneCount ?
(const SkVertices::Bone*) reader->skip(boneCount, sizeof(SkVertices::Bone)) :
nullptr;
SkBlendMode bmode = reader->read32LE(SkBlendMode::kLastMode);
BREAK_ON_READ_ERROR(reader);
if (paint && vertices) {
canvas->drawVertices(vertices, bones, boneCount, bmode, *paint);
}
} break;
case RESTORE:
canvas->restore();
break;
case ROTATE: {
auto deg = reader->readScalar();
canvas->rotate(deg);
} break;
case SAVE:
canvas->save();
break;
case SAVE_BEHIND: {
uint32_t flags = reader->readInt();
const SkRect* subset = nullptr;
SkRect storage;
if (flags & SAVEBEHIND_HAS_SUBSET) {
reader->readRect(&storage);
subset = &storage;
}
SkCanvasPriv::SaveBehind(canvas, subset);
} break;
case SAVE_LAYER_SAVEFLAGS_DEPRECATED: {
SkRect storage;
const SkRect* boundsPtr = get_rect_ptr(reader, &storage);
const SkPaint* paint = fPictureData->getPaint(reader);
auto flags = SkCanvasPriv::LegacySaveFlagsToSaveLayerFlags(reader->readInt());
BREAK_ON_READ_ERROR(reader);
canvas->saveLayer(SkCanvas::SaveLayerRec(boundsPtr, paint, flags));
} break;
case SAVE_LAYER_SAVELAYERREC: {
SkCanvas::SaveLayerRec rec(nullptr, nullptr, nullptr, nullptr, nullptr, 0);
SkMatrix clipMatrix;
const uint32_t flatFlags = reader->readInt();
SkRect bounds;
if (flatFlags & SAVELAYERREC_HAS_BOUNDS) {
reader->readRect(&bounds);
rec.fBounds = &bounds;
}
if (flatFlags & SAVELAYERREC_HAS_PAINT) {
rec.fPaint = fPictureData->getPaint(reader);
}
if (flatFlags & SAVELAYERREC_HAS_BACKDROP) {
if (const auto* paint = fPictureData->getPaint(reader)) {
rec.fBackdrop = paint->getImageFilter();
}
}
if (flatFlags & SAVELAYERREC_HAS_FLAGS) {
rec.fSaveLayerFlags = reader->readInt();
}
if (flatFlags & SAVELAYERREC_HAS_CLIPMASK) {
rec.fClipMask = fPictureData->getImage(reader);
}
if (flatFlags & SAVELAYERREC_HAS_CLIPMATRIX) {
reader->readMatrix(&clipMatrix);
rec.fClipMatrix = &clipMatrix;
}
BREAK_ON_READ_ERROR(reader);
canvas->saveLayer(rec);
} break;
case SCALE: {
SkScalar sx = reader->readScalar();
SkScalar sy = reader->readScalar();
canvas->scale(sx, sy);
} break;
case SET_MATRIX: {
SkMatrix matrix;
reader->readMatrix(&matrix);
matrix.postConcat(initialMatrix);
canvas->setMatrix(matrix);
} break;
case SKEW: {
SkScalar sx = reader->readScalar();
SkScalar sy = reader->readScalar();
canvas->skew(sx, sy);
} break;
case TRANSLATE: {
SkScalar dx = reader->readScalar();
SkScalar dy = reader->readScalar();
canvas->translate(dx, dy);
} break;
default:
reader->validate(false); // unknown op
break;
}
#undef BREAK_ON_READ_ERROR
}
