FGFS-4.1/OpenSceneGraph
4
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

fix copySubImage crash on compressed files

Browse Source
This commit is contained in:
Laurens Voerman 2019-11-01 16:42:50 +01:00
parent 415925b024
commit c4e7a07367
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
src/osg/Image.cpp
View File

@ -1696,11 +1696,11 @@ void Image::copySubImage(int s_offset, int t_offset, int r_offset, const osg::Im
}
unsigned int rowWidthInBlocks = (_s + footprint.x() - 1) / footprint.x();
unsigned int blockSize = computeBlockSize(_pixelFormat, 0);
data_destination = _data + blockSize * (rowWidthInBlocks * t_offset + (s_offset / footprint.x()));
data_destination = _data + blockSize * (rowWidthInBlocks * (t_offset / footprint.y()) + (s_offset / footprint.x()));
unsigned int copy_width = (osg::minimum(source->s(), _s - s_offset) + footprint.x() - 1) / footprint.x();
unsigned int copy_height = (osg::minimum(source->t(), _t - t_offset) + footprint.y() - 1) / footprint.y();
unsigned int dstRowStep = blockSize * rowWidthInBlocks;
unsigned int srcRowStep = blockSize * (source->_s + footprint.x() - 1) / footprint.x();
unsigned int srcRowStep = blockSize * ((source->_s + footprint.x() - 1) / footprint.x());
const unsigned char* data_source = source->data(0, 0, 0);
for (unsigned int row = 0; row < copy_height; row += 1) { //copy blocks in a row, footprint.y() rows at a time
memcpy(data_destination, data_source, copy_width * blockSize);