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#include "epicsv4Grayscale.h"
epics::pvData::StructureConstPtr createNTNDArrayStructure()
{
static epics::pvData::StructureConstPtr ntndArrayStructure;
if (!ntndArrayStructure.get())
{
StandardFieldPtr standardField = getStandardField();
FieldBuilderPtr fb = getFieldCreate()->createFieldBuilder();
for (int i = pvBoolean; i < pvString; ++i)
{
ScalarType st = static_cast<ScalarType>(i);
fb->addArray(std::string(ScalarTypeFunc::name(st)) + "Value", st);
}
UnionConstPtr valueType = fb->createUnion();
StructureConstPtr codecStruc = fb->setId("codec_t")->
add("name", pvString)->
add("parameters", getFieldCreate()->createVariantUnion())->
createStructure();
StructureConstPtr dimensionStruc = fb->setId("dimension_t")->
add("size", pvInt)->
add("offset", pvInt)->
add("fullSize", pvInt)->
add("binning", pvInt)->
add("reverse", pvBoolean)->
createStructure();
StructureConstPtr attributeStruc = fb->setId("epics:nt/NTAttribute:1.0")->
add("name", pvString)->
add("value", getFieldCreate()->createVariantUnion())->
add("descriptor", pvString)->
add("sourceType", pvInt)->
add("source", pvString)->
createStructure();
ntndArrayStructure = fb->setId("epics:nt/NTNDArray:1.0")->
add("value", valueType)->
add("codec", codecStruc)->
add("compressedSize", pvLong)->
add("uncompressedSize", pvLong)->
addArray("dimension", dimensionStruc)->
add("uniqueId", pvInt)->
add("dataTimeStamp", standardField->timeStamp())->
addArray("attribute", attributeStruc)->
//add("descriptor", pvString)->
//add("timeStamp", standardField->timeStamp())->
//add("alarm", standardField->alarm())->
//add("display", standardField->display())->
createStructure();
}
return ntndArrayStructure;
}
void setNTNDArrayValue(
PVStructure::shared_pointer const & imagePV,
const size_t raw_dim_size,
const int32_t* raw_dim,
const size_t raw_size,
const int8_t* raw
)
{
PVUnionPtr unionValue = imagePV->getSubField<PVUnion>("value");
// assumes byteArray
PVByteArrayPtr pvField = unionValue->select<PVByteArray>("byteValue");
const int8_t *data = raw;
size_t dataSize = raw_size;
PVByteArray::svector temp(pvField->reuse());
temp.resize(dataSize);
if (data)
std::copy(data, data + dataSize, temp.begin());
pvField->replace(freeze(temp));
PVStructureArrayPtr dimField = imagePV->getSubField<PVStructureArray>("dimension");
PVStructureArray::svector dimVector(dimField->reuse());
dimVector.resize(raw_dim_size);
for (size_t i = 0; i < raw_dim_size; i++)
{
PVStructurePtr d = dimVector[i];
if (!d)
d = dimVector[i] = getPVDataCreate()->createPVStructure(dimField->getStructureArray()->getStructure());
d->getSubField<PVInt>("size")->put(raw_dim[i]);
d->getSubField<PVInt>("offset")->put(0);
d->getSubField<PVInt>("fullSize")->put(raw_dim[i]);
d->getSubField<PVInt>("binning")->put(1);
d->getSubField<PVBoolean>("reverse")->put(false);
}
dimField->replace(freeze(dimVector));
imagePV->getSubField<PVLong>("uncompressedSize")->put(static_cast<int64>(raw_size));
imagePV->getSubField<PVLong>("compressedSize")->put(static_cast<int64>(raw_size));
PVTimeStamp timeStamp;
timeStamp.attach(imagePV->getSubField<PVStructure>("dataTimeStamp"));
TimeStamp current;
current.getCurrent();
timeStamp.set(current);
}
void setNTNDArrayData(
PVStructure::shared_pointer const & imagePV,
const string & codec,
int32 colorMode
)
{
imagePV->getSubField<PVString>("codec.name")->put(codec);
imagePV->getSubField<PVInt>("uniqueId")->put(0);
PVStructureArray::shared_pointer pvAttributes = imagePV->getSubField<PVStructureArray>("attribute");
PVStructureArray::svector attributes(pvAttributes->reuse());
bool addNew = false;
PVStructure::shared_pointer attribute;
// find ColorMode
for (PVStructureArray::const_svector::const_iterator iter = attributes.begin();
iter != attributes.end();
iter++)
{
PVStructure::shared_pointer fattribute = *iter;
PVString::shared_pointer pvName = fattribute->getSubField<PVString>("name");
if (pvName && pvName->get() == "ColorMode")
{
attribute = fattribute;
break;
}
}
if (!attribute)
{
attribute = getPVDataCreate()->createPVStructure(pvAttributes->getStructureArray()->getStructure());
addNew = true;
}
attribute->getSubField<PVString>("name")->put("ColorMode");
PVInt::shared_pointer pvColorMode = getPVDataCreate()->createPVScalar<PVInt>();
pvColorMode->put(colorMode);
if (addNew)
attributes.push_back(attribute);
attribute->getSubField<PVUnion>("value")->set(pvColorMode);
attribute->getSubField<PVString>("descriptor")->put("Color mode");
attribute->getSubField<PVInt>("sourceType")->put(0);
attribute->getSubField<PVString>("source")->put("");
pvAttributes->replace(freeze(attributes));
}
void initImage(
PVStructure::shared_pointer const & imagePV,
const string & codec,
int32 colorMode,
const size_t raw_dim_size,
const int32_t* raw_dim,
const size_t raw_size,
const int8_t* raw
)
{
setNTNDArrayValue(imagePV, raw_dim_size, raw_dim, raw_size, raw);
setNTNDArrayData(imagePV, codec, colorMode);
}
void initImageEPICSv4GrayscaleLogo(PVStructure::shared_pointer const & imagePV)
{
setNTNDArrayValue(imagePV, 2, epicsv4_raw_dim, epicsv4_raw_size, epicsv4_raw);
setNTNDArrayData(imagePV, "", 0 /* NDColorModeMono=0 */);
}
void rotateImage(PVStructure::shared_pointer const & imagePV, const int8_t* originalImage, float deg)
{
PVUnionPtr unionValue = imagePV->getSubField<PVUnion>("value");
PVStructureArrayPtr dim = imagePV->getSubField<PVStructureArray>("dimension");
PVStructureArray::const_svector data = dim->view();
// 2d NTNDArray - { x, y }
int32 cols = data[0]->getSubField<PVInt>("size")->get();
int32 rows = data[1]->getSubField<PVInt>("size")->get();
// assumes byteArray
PVByteArrayPtr array = unionValue->get<PVByteArray>();
double fi = 3.141592653589793238462 * deg / 180.0;
double cosFi = 16.0 * cos(fi);
double sinFi = 16.0 * sin(fi);
int32 cx = cols/2;
int32 cy = rows/2;
int32 colsm2 = cols-2;
int32 rowsm2 = rows-2;
PVByteArray::svector imgData(array->reuse());
int8_t* img = imgData.data();
for (int32 y = 0; y < rows; y++)
{
int8_t* imgline = img + y*cols;
int32 dcy = y - cy;
for (int32 x = 0; x < cols; x++)
{
int32 dcx = x - cx;
int32 tnx = static_cast<int32>(cosFi*dcx + sinFi*dcy);
int32 tny = static_cast<int32>(-sinFi*dcx + cosFi*dcy);
int32 nx = (tnx >> 4) + cx;
int32 ny = (tny >> 4) + cy;
if (nx < 0 || ny < 0 || nx > colsm2 || ny > rowsm2)
{
imgline[x] = 0;
}
else
{
const int8_t* srcline = originalImage + ny*cols;
int32 xf = tnx & 0x0F;
int32 yf = tny & 0x0F;
int32 v00 = (16 - xf) * (16 - yf) * (srcline[nx] + 128);
int32 v10 = xf * (16 - yf) * (srcline[nx + 1] + 128);
int32 v01 = (16 - xf) * yf * (srcline[cols + nx] + 128);
int32 v11 = xf * yf * (srcline[cols + nx + 1] + 128);
uint8_t val = static_cast<uint8_t>((v00 + v01 + v10 + v11 + 128) / 256);
imgline[x] = static_cast<int32>(val) - 128;
}
}
}
array->replace(freeze(imgData));
PVIntPtr uniqueIdField = imagePV->getSubField<PVInt>("uniqueId");
uniqueIdField->put(uniqueIdField->get()+1);
}
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