bool LLImageRaw::createFromFile(const std::string &filename, bool j2c_lowest_mip_only)
{
std::string name = filename;
size_t dotidx = name.rfind('.');
S8 codec = IMG_CODEC_INVALID;
std::string exten;
deleteData(); // delete any existing data
if (dotidx != std::string::npos)
{
exten = name.substr(dotidx+1);
LLStringUtil::toLower(exten);
codec = getCodecFromExtension(exten);
}
else
{
exten = find_file(name, &codec);
name = name + "." + exten;
}
if (codec == IMG_CODEC_INVALID)
{
return false; // format not recognized
}
llifstream ifs(name, llifstream::binary);
if (!ifs.is_open())
{
// SJB: changed from LL_INFOS() to LL_DEBUGS() to reduce spam
LL_DEBUGS() << "Unable to open image file: " << name << LL_ENDL;
return false;
}
ifs.seekg (0, std::ios::end);
int length = ifs.tellg();
if (j2c_lowest_mip_only && length > 2048)
{
length = 2048;
}
ifs.seekg (0, std::ios::beg);
if (!length)
{
LL_INFOS() << "Zero length file file: " << name << LL_ENDL;
return false;
}
LLPointer<LLImageFormatted> image = LLImageFormatted::createFromType(codec);
llassert(image.notNull());
U8 *buffer = image->allocateData(length);
ifs.read ((char*)buffer, length);
ifs.close();
BOOL success;
success = image->updateData();
if (success)
{
if (j2c_lowest_mip_only && codec == IMG_CODEC_J2C)
{
S32 width = image->getWidth();
S32 height = image->getHeight();
S32 discard_level = 0;
while (width > 1 && height > 1 && discard_level < MAX_DISCARD_LEVEL)
{
width >>= 1;
height >>= 1;
discard_level++;
}
((LLImageJ2C *)((LLImageFormatted*)image))->setDiscardLevel(discard_level);
}
success = image->decode(this, 100000.0f);
}
bool LLImageRaw::createFromFile(const std::string &filename, bool j2c_lowest_mip_only)
{
std::string name = filename;
size_t dotidx = name.rfind('.');
S8 codec = IMG_CODEC_INVALID;
std::string exten;
deleteData(); // delete any existing data
if (dotidx != std::string::npos)
{
exten = name.substr(dotidx+1);
LLStringUtil::toLower(exten);
codec = getCodecFromExtension(exten);
}
else
{
exten = find_file(name, &codec);
name = name + "." + exten;
}
if (codec == IMG_CODEC_INVALID)
{
return false; // format not recognized
}
llifstream ifs(name, llifstream::binary);
if (!ifs.is_open())
{
// SJB: changed from llinfos to lldebugs to reduce spam
lldebugs << "Unable to open image file: " << name << llendl;
return false;
}
ifs.seekg (0, std::ios::end);
int length = ifs.tellg();
if (j2c_lowest_mip_only && length > 2048)
{
length = 2048;
}
ifs.seekg (0, std::ios::beg);
if (!length)
{
llinfos << "Zero length file file: " << name << llendl;
return false;
}
LLPointer<LLImageFormatted> image;
switch(codec)
{
//case IMG_CODEC_RGB:
case IMG_CODEC_BMP:
image = new LLImageBMP();
break;
case IMG_CODEC_TGA:
image = new LLImageTGA();
break;
case IMG_CODEC_JPEG:
image = new LLImageJPEG();
break;
case IMG_CODEC_J2C:
image = new LLImageJ2C();
break;
case IMG_CODEC_DXT:
image = new LLImageDXT();
break;
default:
return false;
}
llassert(image.notNull());
U8 *buffer = image->allocateData(length);
ifs.read ((char*)buffer, length); /* Flawfinder: ignore */
ifs.close();
image->updateData();
if (j2c_lowest_mip_only && codec == IMG_CODEC_J2C)
{
S32 width = image->getWidth();
S32 height = image->getHeight();
S32 discard_level = 0;
while (width > 1 && height > 1 && discard_level < MAX_DISCARD_LEVEL)
{
width >>= 1;
height >>= 1;
discard_level++;
}
((LLImageJ2C *)((LLImageFormatted*)image))->setDiscardLevel(discard_level);
}
