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Add getDataView() method to QTextureFileData

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This method will return a QByteArrayView of the data range corresponding
to the level. This avoids a leaky abstraction by moving the needed data
pointer arithmetic from the caller to the method. It will also make it
easier adding cubemap support in the future.

Change-Id: I2415bd88365d8d69ba14aefc77f5f1117f9e0033
Reviewed-by: Eirik Aavitsland <eirik.aavitsland@qt.io>
This commit is contained in:
Jonas Karlsson 2020-12-22 13:52:29 +01:00
parent 89b2b60e63
commit 162a859045
2 changed files with 13 additions and 0 deletions
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11
src/gui/util/qtexturefiledata.cpp
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@ -167,6 +167,17 @@ int QTextureFileData::dataLength(int level) const
return (d && d->lengths.size() > level) ? d->lengths.at(level) : 0; return (d && d->lengths.size() > level) ? d->lengths.at(level) : 0;
} }
QByteArrayView QTextureFileData::getDataView(int level) const
{
const int dataLength = this->dataLength(level);
const int dataOffset = this->dataOffset(level);
if (d == nullptr || dataLength == 0)
return QByteArrayView();
return QByteArrayView(d->data.constData() + dataOffset, dataLength);
}
void QTextureFileData::setDataLength(int length, int level) void QTextureFileData::setDataLength(int length, int level)
{ {
if (d.constData() && level >= 0) { if (d.constData() && level >= 0) {

2
src/gui/util/qtexturefiledata_p.h
View File

@ -84,6 +84,8 @@ public:
int dataLength(int level = 0) const; int dataLength(int level = 0) const;
void setDataLength(int length, int level = 0); void setDataLength(int length, int level = 0);
QByteArrayView getDataView(int level = 0) const;
int numLevels() const; int numLevels() const;
void setNumLevels(int num); void setNumLevels(int num);