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); }