Esempio n. 1
0
//-----------------------------------------------------------------------------
// loadImage()
//-----------------------------------------------------------------------------
bool LLFloaterImagePreview::loadImage(const std::string& src_filename)
{
	std::string exten = gDirUtilp->getExtension(src_filename);
	U32 codec = LLImageBase::getCodecFromExtension(exten);

	LLImageDimensionsInfo image_info;
	if (!image_info.load(src_filename,codec))
	{
		mImageLoadError = image_info.getLastError();
		return false;
	}

	S32 max_width = gSavedSettings.getS32("max_texture_dimension_X");
	S32 max_height = gSavedSettings.getS32("max_texture_dimension_Y");

	if ((image_info.getWidth() > max_width) || (image_info.getHeight() > max_height))
	{
		LLStringUtil::format_map_t args;
		args["WIDTH"] = llformat("%d", max_width);
		args["HEIGHT"] = llformat("%d", max_height);

		mImageLoadError = LLTrans::getString("texture_load_dimensions_error", args);
		return false;
	}
	
	// Load the image
	LLPointer<LLImageFormatted> image = LLImageFormatted::createFromType(codec);
	if (image.isNull())
	{
		return false;
	}
	if (!image->load(src_filename))
	{
		return false;
	}
	// Decompress or expand it in a raw image structure
	LLPointer<LLImageRaw> raw_image = new LLImageRaw;
	if (!image->decode(raw_image, 0.0f))
	{
		return false;
	}
	// Check the image constraints
	if ((image->getComponents() != 3) && (image->getComponents() != 4))
	{
		image->setLastError("Image files with less than 3 or more than 4 components are not supported.");
		return false;
	}
	
	raw_image->biasedScaleToPowerOfTwo(1024);
	mRawImagep = raw_image;
	
	return true;
}
Esempio n. 2
0
BOOL LLViewerTextureList::createUploadFile(const std::string& filename,
										 const std::string& out_filename,
										 const U8 codec)
{	
	// Load the image
	LLPointer<LLImageFormatted> image = LLImageFormatted::createFromType(codec);
	if (image.isNull())
	{
		image->setLastError("Couldn't open the image to be uploaded.");
		return FALSE;
	}	
	if (!image->load(filename))
	{
		image->setLastError("Couldn't load the image to be uploaded.");
		return FALSE;
	}
	// Decompress or expand it in a raw image structure
	LLPointer<LLImageRaw> raw_image = new LLImageRaw;
	if (!image->decode(raw_image, 0.0f))
	{
		image->setLastError("Couldn't decode the image to be uploaded.");
		return FALSE;
	}
	// Check the image constraints
	if ((image->getComponents() != 3) && (image->getComponents() != 4))
	{
		image->setLastError("Image files with less than 3 or more than 4 components are not supported.");
		return FALSE;
	}
	// Convert to j2c (JPEG2000) and save the file locally
	LLPointer<LLImageJ2C> compressedImage = convertToUploadFile(raw_image);	
	if (compressedImage.isNull())
	{
		image->setLastError("Couldn't convert the image to jpeg2000.");
		llinfos << "Couldn't convert to j2c, file : " << filename << llendl;
		return FALSE;
	}
	if (!compressedImage->save(out_filename))
	{
		image->setLastError("Couldn't create the jpeg2000 image for upload.");
		llinfos << "Couldn't create output file : " << out_filename << llendl;
		return FALSE;
	}
	// Test to see if the encode and save worked
	LLPointer<LLImageJ2C> integrity_test = new LLImageJ2C;
	if (!integrity_test->loadAndValidate( out_filename ))
	{
		image->setLastError("The created jpeg2000 image is corrupt.");
		llinfos << "Image file : " << out_filename << " is corrupt" << llendl;
		return FALSE;
	}
	return TRUE;
}
Esempio n. 3
0
// Load an image from file and return a raw (decompressed) instance of its data
LLPointer<LLImageRaw> load_image(const std::string &src_filename, int discard_level, int* region, bool output_stats)
{
	LLPointer<LLImageFormatted> image = create_image(src_filename);
	
	// This just loads the image file stream into a buffer. No decoding done.
	if (!image->load(src_filename))
	{
		return NULL;
	}
	
	if(	(image->getComponents() != 3) && (image->getComponents() != 4) )
	{
		std::cout << "Image files with less than 3 or more than 4 components are not supported\n";
		return NULL;
	}
	
	if (output_stats)
	{
		output_image_stats(image, src_filename);
	}
	
	LLPointer<LLImageRaw> raw_image = new LLImageRaw;
	
	// Set the image restriction on load in the case of a j2c image
	if ((image->getCodec() == IMG_CODEC_J2C) && ((discard_level != -1) || (region != NULL)))
	{
		// That method doesn't exist (and likely, doesn't make sense) for any other image file format
		// hence the required cryptic cast.
		((LLImageJ2C*)(image.get()))->initDecode(*raw_image, discard_level, region);
	}
	
	if (!image->decode(raw_image, 0.0f))
	{
		return NULL;
	}
	
	return raw_image;
}
Esempio n. 4
0
// Load an image from file and return a raw (decompressed) instance of its data
LLPointer<LLImageRaw> load_image(const std::string &src_filename, int discard_level, int* region, int load_size, bool output_stats)
{
	LLPointer<LLImageFormatted> image = create_image(src_filename);
	
	// We support partial loading only for j2c images
	if (image->getCodec() == IMG_CODEC_J2C)
	{
		// Load the header
		if (!image->load(src_filename, 600))
		{
			return NULL;
		}
		S32 h = ((LLImageJ2C*)(image.get()))->calcHeaderSize();
		S32 d = (load_size > 0 ? ((LLImageJ2C*)(image.get()))->calcDiscardLevelBytes(load_size) : 0);
		S8  r = ((LLImageJ2C*)(image.get()))->getRawDiscardLevel();
		std::cout << "Merov debug : header = " << h << ", load_size = " << load_size << ", discard level = " << d << ", raw discard level = " << r << std::endl;
		for (d = 0; d < MAX_DISCARD_LEVEL; d++)
		{
			S32 data_size = ((LLImageJ2C*)(image.get()))->calcDataSize(d);
			std::cout << "Merov debug : discard_level = " << d << ", data_size = " << data_size << std::endl;
		}
		if (load_size < 0)
		{
			load_size = (discard_level != -1 ? ((LLImageJ2C*)(image.get()))->calcDataSize(discard_level) : 0);
		}
		// Load the requested byte range
		if (!image->load(src_filename, load_size))
		{
			return NULL;
		}
	}
	else 
	{
		// This just loads the image file stream into a buffer. No decoding done.
		if (!image->load(src_filename))
		{
			return NULL;
		}
	}
	
	if(	(image->getComponents() != 3) && (image->getComponents() != 4) )
	{
		std::cout << "Image files with less than 3 or more than 4 components are not supported\n";
		return NULL;
	}
	
	if (output_stats)
	{
		output_image_stats(image, src_filename);
	}
	
	LLPointer<LLImageRaw> raw_image = new LLImageRaw;
	
	// Set the image restriction on load in the case of a j2c image
	if ((image->getCodec() == IMG_CODEC_J2C) && ((discard_level != -1) || (region != NULL)))
	{
		// That method doesn't exist (and likely, doesn't make sense) for any other image file format
		// hence the required cryptic cast.
		((LLImageJ2C*)(image.get()))->initDecode(*raw_image, discard_level, region);
	}
	
	if (!image->decode(raw_image, 0.0f))
	{
		return NULL;
	}
	
	return raw_image;
}