C++ LLImageRaw::getWidth方法代码示例

void LocalAssetBrowser::PerformSculptUpdates(LocalBitmap* unit)
{

	/* looking for sculptmap using objects only */
	std::vector<affected_object> object_list = unit->getUsingObjects(false, false, true);
	if (object_list.empty()) { return; }

	for( std::vector<affected_object>::iterator iter = object_list.begin();
		 iter != object_list.end(); iter++ )
	{
		affected_object aobj = *iter;
		if ( aobj.object )
		{
			if ( !aobj.local_sculptmap ) { continue; } // should never get here. only in case of misuse.
			
			// update code [begin]
			if ( unit->volume_dirty )
			{
				LLImageRaw* rawimage = gTextureList.findImage( unit->getID() )->getCachedRawImage();

				aobj.object->getVolume()->sculpt(rawimage->getWidth(), rawimage->getHeight(), 
												  rawimage->getComponents(), rawimage->getData(), 0);	
				unit->volume_dirty = false;
			}

				// tell affected drawable it's got updated
				aobj.object->mDrawable->getVOVolume()->setSculptChanged( true );
				aobj.object->mDrawable->getVOVolume()->markForUpdate( true );
			// update code [end]
		}
			
	}

}

void LLImageRaw::composite( LLImageRaw* src )
{
	LLImageRaw* dst = this;  // Just for clarity.

	llassert(3 == src->getComponents());
	llassert(3 == dst->getComponents());

	if( 3 == dst->getComponents() )
	{
		if( (src->getWidth() == dst->getWidth()) && (src->getHeight() == dst->getHeight()) )
		{
			// No scaling needed
			if( 3 == src->getComponents() )
			{
				copyUnscaled( src );  // alpha is one so just copy the data.
			}
			else
			{
				compositeUnscaled4onto3( src );
			}
		}
		else
		{
			if( 3 == src->getComponents() )
			{
				copyScaled( src );  // alpha is one so just copy the data.
			}
			else
			{
				compositeScaled4onto3( src );
			}
		}
	}
}

// Src and dst can be any size.  Src and dst have same number of components.
void LLImageRaw::copyScaled( LLImageRaw* src )
{
	LLMemType mt1((LLMemType::EMemType)mMemType);
	LLImageRaw* dst = this;  // Just for clarity.

	llassert_always( (1 == src->getComponents()) || (3 == src->getComponents()) || (4 == src->getComponents()) );
	llassert_always( src->getComponents() == dst->getComponents() );

	if( (src->getWidth() == dst->getWidth()) && (src->getHeight() == dst->getHeight()) )
	{
		memcpy( dst->getData(), src->getData(), getWidth() * getHeight() * getComponents() );	/* Flawfinder: ignore */
		return;
	}

	// Vertical
	S32 temp_data_size = src->getWidth() * dst->getHeight() * getComponents();
	llassert_always(temp_data_size > 0);
	U8* temp_buffer = new U8[ temp_data_size ];
	for( S32 col = 0; col < src->getWidth(); col++ )
	{
		copyLineScaled( src->getData() + (getComponents() * col), temp_buffer + (getComponents() * col), src->getHeight(), dst->getHeight(), src->getWidth(), src->getWidth() );
	}

	// Horizontal
	for( S32 row = 0; row < dst->getHeight(); row++ )
	{
		copyLineScaled( temp_buffer + (getComponents() * src->getWidth() * row), dst->getData() + (getComponents() * dst->getWidth() * row), src->getWidth(), dst->getWidth(), 1, 1 );
	}

	// Clean up
	delete[] temp_buffer;
}

// Src and dst can be any size.  Src and dst have same number of components.
void LLImageRaw::copyScaled( LLImageRaw* src )
{
	LLImageRaw* dst = this;  // Just for clarity.

	llassert_always( (1 == src->getComponents()) || (3 == src->getComponents()) || (4 == src->getComponents()) );
	llassert_always( src->getComponents() == dst->getComponents() );

	if( (src->getWidth() == dst->getWidth()) && (src->getHeight() == dst->getHeight()) )
	{
		memcpy( dst->getData(), src->getData(), getWidth() * getHeight() * getComponents() );	/* Flawfinder: ignore */
		return;
	}

	S32 temp_data_size = src->getWidth() * dst->getHeight() * getComponents();
	llassert_always(temp_data_size > 0);
	std::vector<U8> temp_buffer(temp_data_size);

	// Vertical
	for( S32 col = 0; col < src->getWidth(); col++ )
	{
		copyLineScaled( src->getData() + (getComponents() * col), &temp_buffer[0] + (getComponents() * col), src->getHeight(), dst->getHeight(), src->getWidth(), src->getWidth() );
	}

	// Horizontal
	for( S32 row = 0; row < dst->getHeight(); row++ )
	{
		copyLineScaled( &temp_buffer[0] + (getComponents() * src->getWidth() * row), dst->getData() + (getComponents() * dst->getWidth() * row), src->getWidth(), dst->getWidth(), 1, 1 );
	}
}

void LLLocalBitmapBrowser::performSculptUpdates(LLLocalBitmap* unit)
{

	/* looking for sculptmap using objects only */
	std::vector<LLAffectedObject> object_list = unit->getUsingObjects(false, false, true);
	if (object_list.empty()) { return; }

	for( std::vector<LLAffectedObject>::iterator iter = object_list.begin();
		 iter != object_list.end(); iter++ )
	{
		LLAffectedObject aobj = *iter;
		if ( aobj.object )
		{
			if ( !aobj.local_sculptmap ) { continue; } // should never get here. only in case of misuse.
			
			// update code [begin]   
			if ( unit->mVolumeDirty )
			{
				LLImageRaw* rawimage = gTextureList.findImage( unit->getID() )->getCachedRawImage();

				LLVolumeParams params = aobj.object->getVolume()->getParams();
				LLVolumeLODGroup* lodgroup = aobj.object->mDrawable->getVOVolume()->getVolumeManager()->getGroup(params);
			
				for (S32 i = 0; i < LLVolumeLODGroup::NUM_LODS; i++)
				{
					LLVolume* vol = lodgroup->getVolByLOD(i);

					if (vol)
						{ vol->sculpt(rawimage->getWidth(), rawimage->getHeight(), rawimage->getComponents(), rawimage->getData(), 0); }
				}

				// doing this again to fix the weirdness with selected-for-edit objects not updating otherwise.
				aobj.object->getVolume()->sculpt(rawimage->getWidth(), rawimage->getHeight(), 
												  rawimage->getComponents(), rawimage->getData(), 0);

				unit->mVolumeDirty = false;
			}

			aobj.object->mDrawable->getVOVolume()->setSculptChanged( true ); 
			aobj.object->mDrawable->getVOVolume()->markForUpdate( true );
			// update code [end]
		}
			
	}

}

// Src and dst are same size.  Src and dst have same number of components.
void LLImageRaw::copyUnscaled(LLImageRaw* src)
{
	LLImageRaw* dst = this;  // Just for clarity.

	llassert( (1 == src->getComponents()) || (3 == src->getComponents()) || (4 == src->getComponents()) );
	llassert( src->getComponents() == dst->getComponents() );
	llassert( (src->getWidth() == dst->getWidth()) && (src->getHeight() == dst->getHeight()) );

	memcpy( dst->getData(), src->getData(), getWidth() * getHeight() * getComponents() );	/* Flawfinder: ignore */
}

// Src and dst are same size.  Src has 4 components.  Dst has 3 components.
void LLImageRaw::compositeUnscaled4onto3( LLImageRaw* src )
{
	/*
	//test fastFractionalMult()
	{
		U8 i = 255;
		U8 j = 255;
		do
		{
			do
			{
				llassert( fastFractionalMult(i, j) == (U8)(255*(i/255.f)*(j/255.f) + 0.5f) );
			} while( j-- );
		} while( i-- );
	}
	*/

	LLImageRaw* dst = this;  // Just for clarity.

	llassert( (3 == src->getComponents()) || (4 == src->getComponents()) );
	llassert( (src->getWidth() == dst->getWidth()) && (src->getHeight() == dst->getHeight()) );


	U8* src_data = src->getData();
	U8* dst_data = dst->getData();
	S32 pixels = getWidth() * getHeight();
	while( pixels-- )
	{
		U8 alpha = src_data[3];
		if( alpha )
		{
			if( 255 == alpha )
			{
				dst_data[0] = src_data[0];
				dst_data[1] = src_data[1];
				dst_data[2] = src_data[2];
			}
			else
			{

				U8 transparency = 255 - alpha;
				dst_data[0] = fastFractionalMult( dst_data[0], transparency ) + fastFractionalMult( src_data[0], alpha );
				dst_data[1] = fastFractionalMult( dst_data[1], transparency ) + fastFractionalMult( src_data[1], alpha );
				dst_data[2] = fastFractionalMult( dst_data[2], transparency ) + fastFractionalMult( src_data[2], alpha );
			}
		}

		src_data += 4;
		dst_data += 3;
	}
}

// Src and dst can be any size.  Src and dst can each have 3 or 4 components.
void LLImageRaw::copy(LLImageRaw* src)
{
	if (!src)
	{
		llwarns << "LLImageRaw::copy called with a null src pointer" << llendl;
		return;
	}

	LLImageRaw* dst = this;  // Just for clarity.

	llassert( (3 == src->getComponents()) || (4 == src->getComponents()) );
	llassert( (3 == dst->getComponents()) || (4 == dst->getComponents()) );

	if( (src->getWidth() == dst->getWidth()) && (src->getHeight() == dst->getHeight()) )
	{
		// No scaling needed
		if( src->getComponents() == dst->getComponents() )
		{
			copyUnscaled( src );
		}
		else
		if( 3 == src->getComponents() )
		{
			copyUnscaled3onto4( src );
		}
		else
		{
			// 4 == src->getComponents()
			copyUnscaled4onto3( src );
		}
	}
	else
	{
		// Scaling needed
		// No scaling needed
		if( src->getComponents() == dst->getComponents() )
		{
			copyScaled( src );
		}
		else
		if( 3 == src->getComponents() )
		{
			copyScaled3onto4( src );
		}
		else
		{
			// 4 == src->getComponents()
			copyScaled4onto3( src );
		}
	}
}

// Src and dst can be any size.  Src and dst can each have 3 or 4 components.
void LLImageRaw::copy(LLImageRaw* src)
{
	if (!src)
	{
		LL_WARNS() << "LLImageRaw::copy called with a null src pointer" << LL_ENDL;
		return;
	}

	LLImageRaw* dst = this;  // Just for clarity.

	if( (src->getWidth() == dst->getWidth()) && (src->getHeight() == dst->getHeight()) )
	{
		// No scaling needed
		if( src->getComponents() == dst->getComponents() )
		{
			copyUnscaled( src );
		}
		else
		if( 3 == src->getComponents() )
		{
			copyUnscaled3onto4( src );
		}
		else
		{
			// 4 == src->getComponents()
			copyUnscaled4onto3( src );
		}
	}
	else
	{
		// Scaling needed
		// No scaling needed
		if( src->getComponents() == dst->getComponents() )
		{
			copyScaled( src );
		}
		else
		if( 3 == src->getComponents() )
		{
			copyScaled3onto4( src );
		}
		else
		{
			// 4 == src->getComponents()
			copyScaled4onto3( src );
		}
	}
}

// Src and dst can be any size.  Src and dst can each have 3 or 4 components.
void LLImageRaw::copy(LLImageRaw* src)
{
	LLImageRaw* dst = this;  // Just for clarity.

	llassert( (3 == src->getComponents()) || (4 == src->getComponents()) );
	llassert( (3 == dst->getComponents()) || (4 == dst->getComponents()) );

	if( (src->getWidth() == dst->getWidth()) && (src->getHeight() == dst->getHeight()) )
	{
		// No scaling needed
		if( src->getComponents() == dst->getComponents() )
		{
			copyUnscaled( src );
		}
		else
		if( 3 == src->getComponents() )
		{
			copyUnscaled3onto4( src );
		}
		else
		{
			// 4 == src->getComponents()
			copyUnscaled4onto3( src );
		}
	}
	else
	{
		// Scaling needed
		// No scaling needed
		if( src->getComponents() == dst->getComponents() )
		{
			copyScaled( src );
		}
		else
		if( 3 == src->getComponents() )
		{
			copyScaled3onto4( src );
		}
		else
		{
			// 4 == src->getComponents()
			copyScaled4onto3( src );
		}
	}
}

// Src and dst are same size.  Src has 4 components.  Dst has 3 components.
void LLImageRaw::copyUnscaled4onto3( LLImageRaw* src )
{
	LLImageRaw* dst = this;  // Just for clarity.

	llassert( (3 == dst->getComponents()) && (4 == src->getComponents()) );
	llassert( (src->getWidth() == dst->getWidth()) && (src->getHeight() == dst->getHeight()) );

	S32 pixels = getWidth() * getHeight();
	U8* src_data = src->getData();
	U8* dst_data = dst->getData();
	for( S32 i=0; i<pixels; i++ )
	{
		dst_data[0] = src_data[0];
		dst_data[1] = src_data[1];
		dst_data[2] = src_data[2];
		src_data += 4;
		dst_data += 3;
	}
}

void LLImageRaw::copyUnscaledAlphaMask( LLImageRaw* src, const LLColor4U& fill)
{
	LLImageRaw* dst = this;  // Just for clarity.

	llassert( 1 == src->getComponents() );
	llassert( 4 == dst->getComponents() );
	llassert( (src->getWidth() == dst->getWidth()) && (src->getHeight() == dst->getHeight()) );

	S32 pixels = getWidth() * getHeight();
	U8* src_data = src->getData();
	U8* dst_data = dst->getData();
	for ( S32 i = 0; i < pixels; i++ )
	{
		dst_data[0] = fill.mV[0];
		dst_data[1] = fill.mV[1];
		dst_data[2] = fill.mV[2];
		dst_data[3] = src_data[0];
		src_data += 1;
		dst_data += 4;
	}
}

// Src and dst can be any size.  Src has 4 components.  Dst has 3 components.
void LLImageRaw::compositeScaled4onto3(LLImageRaw* src)
{
	LL_INFOS() << "compositeScaled4onto3" << LL_ENDL;

	LLImageRaw* dst = this;  // Just for clarity.

	llassert( (4 == src->getComponents()) && (3 == dst->getComponents()) );

	S32 temp_data_size = src->getWidth() * dst->getHeight() * src->getComponents();
	llassert_always(temp_data_size > 0);
	std::vector<U8> temp_buffer(temp_data_size);

	// Vertical: scale but no composite
	for( S32 col = 0; col < src->getWidth(); col++ )
	{
		copyLineScaled( src->getData() + (src->getComponents() * col), &temp_buffer[0] + (src->getComponents() * col), src->getHeight(), dst->getHeight(), src->getWidth(), src->getWidth() );
	}

	// Horizontal: scale and composite
	for( S32 row = 0; row < dst->getHeight(); row++ )
	{
		compositeRowScaled4onto3( &temp_buffer[0] + (src->getComponents() * src->getWidth() * row), dst->getData() + (dst->getComponents() * dst->getWidth() * row), src->getWidth(), dst->getWidth() );
	}
}

// Src and dst can be any size.  Src has 4 components.  Dst has 3 components.
void LLImageRaw::compositeScaled4onto3(LLImageRaw* src)
{
	LLMemType mt1((LLMemType::EMemType)mMemType);
	llinfos << "compositeScaled4onto3" << llendl;

	LLImageRaw* dst = this;  // Just for clarity.

	llassert( (4 == src->getComponents()) && (3 == dst->getComponents()) );

	// Vertical: scale but no composite
	S32 temp_data_size = src->getWidth() * dst->getHeight() * src->getComponents();
	U8* temp_buffer = new U8[ temp_data_size ];
	for( S32 col = 0; col < src->getWidth(); col++ )
	{
		copyLineScaled( src->getData() + (src->getComponents() * col), temp_buffer + (src->getComponents() * col), src->getHeight(), dst->getHeight(), src->getWidth(), src->getWidth() );
	}

	// Horizontal: scale and composite
	for( S32 row = 0; row < dst->getHeight(); row++ )
	{
		compositeRowScaled4onto3( temp_buffer + (src->getComponents() * src->getWidth() * row), dst->getData() + (dst->getComponents() * dst->getWidth() * row), src->getWidth(), dst->getWidth() );
	}

	// Clean up
	delete[] temp_buffer;
}

BOOL LLImageJ2CKDU::encodeImpl(LLImageJ2C &base, const LLImageRaw &raw_image, const char* comment_text, F32 encode_time, BOOL reversible)
{
	// Declare and set simple arguments
	bool transpose = false;
	bool vflip = true;
	bool hflip = false;

	try
	{
		// Set up input image files
		siz_params siz;
		
		// Should set rate someplace here
		LLKDUMemIn mem_in(raw_image.getData(),
			raw_image.getDataSize(),
			raw_image.getWidth(),
			raw_image.getHeight(),
			raw_image.getComponents(),
			&siz);

		base.setSize(raw_image.getWidth(), raw_image.getHeight(), raw_image.getComponents());

		int num_components = raw_image.getComponents();

		siz.set(Scomponents,0,0,num_components);
		siz.set(Sdims,0,0,base.getHeight());  // Height of first image component
		siz.set(Sdims,0,1,base.getWidth());   // Width of first image component
		siz.set(Sprecision,0,0,8);  // Image samples have original bit-depth of 8
		siz.set(Ssigned,0,0,false); // Image samples are originally unsigned

		kdu_params *siz_ref = &siz; 
		siz_ref->finalize();
		siz_params transformed_siz; // Use this one to construct code-stream
		transformed_siz.copy_from(&siz,-1,-1,-1,0,transpose,false,false);

		// Construct the `kdu_codestream' object and parse all remaining arguments
		U32 max_output_size = base.getWidth()*base.getHeight()*base.getComponents();
		max_output_size = (max_output_size < 1000 ? 1000 : max_output_size);
		U8 *output_buffer = new U8[max_output_size];
		U32 output_size = 0; // Address updated by LLKDUMemTarget to give the final compressed buffer size
		LLKDUMemTarget output(output_buffer, output_size, max_output_size);

		kdu_codestream codestream;
		codestream.create(&transformed_siz,&output);

		if (comment_text)
		{
			// Set the comments for the codestream
			kdu_codestream_comment comment = codestream.add_comment();
			comment.put_text(comment_text);
		}

		if (num_components >= 3)
		{
			// Note that we always use YCC and not YUV
			// *TODO: Verify this doesn't screws up reversible textures (like sculpties) as YCC is not reversible but YUV is...
			set_default_colour_weights(codestream.access_siz());
		}

		// Set codestream options
		int nb_layers = 0;
		kdu_long layer_bytes[MAX_NB_LAYERS];
		U32 max_bytes = (U32)(base.getWidth() * base.getHeight() * base.getComponents());

		// Rate is the argument passed into the LLImageJ2C which specifies the target compression rate. The default is 8:1.
		// *TODO: mRate is actually always 8:1 in the viewer. Test different values.
		llassert (base.mRate > 0.f);
		max_bytes = (U32)((F32)(max_bytes) * base.mRate);
		
		// This code is where we specify the target number of bytes for each quality layer.
		// We're using a logarithmic spacing rule that fits with our way of fetching texture data.
		// Note: For more info on this layers business, read kdu_codestream::flush() doc in kdu_compressed.h
		layer_bytes[nb_layers++] = FIRST_PACKET_SIZE;
		U32 i = MIN_LAYER_SIZE;
		while ((i < max_bytes) && (nb_layers < (MAX_NB_LAYERS-1)))
		{
			layer_bytes[nb_layers++] = i;
			i *= 4;
		}
		// Note: for small images, we can have (max_bytes < FIRST_PACKET_SIZE), hence the test
		if (layer_bytes[nb_layers-1] < max_bytes)
		{
			// Set the last quality layer so to fit the preset compression ratio
			layer_bytes[nb_layers++] = max_bytes;
		}

		if (reversible)
		{
			// Use 0 for a last quality layer for reversible images so all remaining code blocks will be flushed
			// Hack: KDU encoding for reversible images has a bug for small images that leads to j2c images that 
			// cannot be open or are very blurry. Avoiding that last layer prevents the problem to happen.
			if ((base.getWidth() >= 32) || (base.getHeight() >= 32))
			{
				layer_bytes[nb_layers++] = 0;
			}
			codestream.access_siz()->parse_string("Creversible=yes");
			// *TODO: we should use yuv in reversible mode
			// Don't turn this on now though as it creates problems on decoding for the moment
			//codestream.access_siz()->parse_string("Cycc=no");
		}
//.........这里部分代码省略.........