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Add error message report to catch attempts to flip mipmap images.

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This commit is contained in:
Robert Osfield
2006-08-24 16:33:23 +00:00
parent db08e3d61e
commit 1413eea52c
1 changed files with 24 additions and 15 deletions
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39
src/osg/Image.cpp
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@@ -723,32 +723,41 @@ void Image::flipHorizontal()
{
if (_data==NULL)
{
notify(WARN) << "Error Image::flipHorizontal() do not succeed : cannot flip NULL image."<<std::endl;
notify(WARN) << "Error Image::flipHorizontal() did not succeed : cannot flip NULL image."<<std::endl;
return;
}
unsigned int elemSize = getPixelSizeInBits()/8;
for(int r=0;r<_r;++r)
if (_mipmapData.empty())
{
for (int t=0; t<_t; ++t)
{
unsigned char* rowData = _data+t*getRowSizeInBytes()+r*getImageSizeInBytes();
unsigned char* left = rowData ;
unsigned char* right = rowData + ((_s-1)*getPixelSizeInBits())/8;
while (left < right)
for(int r=0;r<_r;++r)
{
for (int t=0; t<_t; ++t)
{
char tmp[32]; // max elem size is four floats
memcpy(tmp, left, elemSize);
memcpy(left, right, elemSize);
memcpy(right, tmp, elemSize);
left += elemSize;
right -= elemSize;
unsigned char* rowData = _data+t*getRowSizeInBytes()+r*getImageSizeInBytes();
unsigned char* left = rowData ;
unsigned char* right = rowData + ((_s-1)*getPixelSizeInBits())/8;
while (left < right)
{
char tmp[32]; // max elem size is four floats
memcpy(tmp, left, elemSize);
memcpy(left, right, elemSize);
memcpy(right, tmp, elemSize);
left += elemSize;
right -= elemSize;
}
}
}
}
else
{
notify(WARN) << "Error Image::flipHorizontal() did not succeed : cannot flip mipmapped image."<<std::endl;
return;
}
++_modifiedCount;
}