}
Dali::Atlas atlas = Dali::Atlas::New( width, height, pixelformat );
+ atlas.Clear( Vector4::ZERO );
+ mUploadedImages.PushBack( NULL );
AtlasDescriptor atlasDescriptor;
atlasDescriptor.mAtlas = atlas;
atlasDescriptor.mSize = size;
atlasDescriptor.mPixelFormat = pixelformat;
- atlasDescriptor.mNextFreeBlock = 1u; // indicate next free block will be the first ( +1 )
+ atlasDescriptor.mTotalBlocks = ( width / blockWidth ) * ( height / blockHeight );
+ atlasDescriptor.mAvailableBlocks = atlasDescriptor.mTotalBlocks - 1u;
atlas.UploadedSignal().Connect( this, &AtlasManager::OnUpload );
// What size do we need for this atlas' strip buffer ( assume 32bit pixel format )?
SizeType width = image.GetWidth();
SizeType height = image.GetHeight();
SizeType blockArea = 0;
- SizeType totalBlocks = 0;
SizeType foundAtlas = 0;
SizeType index = 0;
slot.mImageId = 0;
// If there is a preferred atlas then check for room in that first
if ( atlas-- )
{
- foundAtlas = CheckAtlas( atlas, width, height, pixelFormat, blockArea, totalBlocks );
+ foundAtlas = CheckAtlas( atlas, width, height, pixelFormat, blockArea );
}
// Search current atlases to see if there is a good match
-
while( !foundAtlas && index < mAtlasList.size() )
{
- foundAtlas = CheckAtlas( index, width, height, pixelFormat, blockArea, totalBlocks );
+ foundAtlas = CheckAtlas( index, width, height, pixelFormat, blockArea );
++index;
}
}
else
{
- foundAtlas = CheckAtlas( newAtlas, width, height, pixelFormat, blockArea, totalBlocks );
+ foundAtlas = CheckAtlas( newAtlas, width, height, pixelFormat, blockArea );
}
}
- if ( Toolkit::AtlasManager::FAIL_ON_ADD_FAILS == mAddFailPolicy || !foundAtlas-- )
+ if ( !foundAtlas-- || Toolkit::AtlasManager::FAIL_ON_ADD_FAILS == mAddFailPolicy )
{
// Haven't found an atlas for this image!!!!!!
return;
for ( SizeType i = 0; i < blockArea; ++i )
{
// Is there currently a next free block available ?
- if ( mAtlasList[ foundAtlas ].mNextFreeBlock )
+ if ( mAtlasList[ foundAtlas ].mAvailableBlocks )
{
- // Yes, so use this for our next block
- SizeType selectedBlock = mAtlasList[ foundAtlas ].mNextFreeBlock - 1u;
- desc.mBlocksList.PushBack( selectedBlock );
-
- // Any blocks going to be available after this one (adjust to store +1 )?
- selectedBlock++;
- selectedBlock++;
- if ( selectedBlock > totalBlocks )
- {
- // No so start trying to use free blocks list
- selectedBlock = 0;
- }
- mAtlasList[ foundAtlas ].mNextFreeBlock = selectedBlock;
+ // Yes, so select our next block
+ desc.mBlocksList.PushBack( mAtlasList[ foundAtlas ].mTotalBlocks - mAtlasList[ foundAtlas ].mAvailableBlocks-- );
}
else
{
desc.mCount = 1u;
// See if there's a previously freed image ID that we can assign to this new image
- uint32_t imageId = 0;
- for ( uint32_t i = 0; i < mImageList.size(); ++i )
+ uint32_t imageId = 0u;
+ for ( uint32_t i = 0u; i < mImageList.size(); ++i )
{
if ( !mImageList[ i ].mCount )
{
SizeType width,
SizeType height,
Pixel::Format pixelFormat,
- SizeType& blockArea,
- SizeType& totalBlocks )
+ SizeType& blockArea )
{
if ( pixelFormat == mAtlasList[ atlas ].mPixelFormat )
{
- // Check to see if there are any unused blocks in this atlas to accomodate our image
- SizeType blocksInX = mAtlasList[ atlas ].mSize.mWidth / mAtlasList[ atlas ].mSize.mBlockWidth;
- SizeType blocksInY = mAtlasList[ atlas ].mSize.mHeight / mAtlasList[ atlas ].mSize.mBlockHeight;
- totalBlocks = blocksInX * blocksInY;
- SizeType blocksFree = mAtlasList[ atlas ].mNextFreeBlock ?
- totalBlocks - mAtlasList[ atlas ].mNextFreeBlock + 1u :
- mAtlasList[ atlas ].mFreeBlocksList.Size();
-
// Check to see if the image will fit in these blocks, if not we'll need to create a new atlas
- if ( blocksFree
- && width + DOUBLE_PIXEL_PADDING <= mAtlasList[ atlas ].mSize.mBlockWidth
- && height + DOUBLE_PIXEL_PADDING <= mAtlasList[ atlas ].mSize.mBlockHeight )
+ if ( ( mAtlasList[ atlas ].mAvailableBlocks + mAtlasList[ atlas ].mFreeBlocksList.Size() )
+ && width + DOUBLE_PIXEL_PADDING <= mAtlasList[ atlas ].mSize.mBlockWidth
+ && height + DOUBLE_PIXEL_PADDING <= mAtlasList[ atlas ].mSize.mBlockHeight )
{
blockArea = 1u;
return ( atlas + 1u );
}
}
- return 0;
+ return 0u;
}
void AtlasManager::CreateMesh( SizeType atlas,
Toolkit::AtlasManager::Mesh2D& mesh,
AtlasSlotDescriptor& desc )
{
-
Toolkit::AtlasManager::Vertex2D vertex;
uint32_t faceIndex = 0; // TODO change to unsigned short when property type is available
float texelX = 1.0f / static_cast< float >( width );
float texelY = 1.0f / static_cast< float >( height );
+ float halfTexelX = texelX * 0.5f;
+ float halfTexelY = texelY * 0.5f;
+
// Get the normalized size of a block in texels
float texelBlockWidth = texelX * vertexBlockWidth;
float texelBlockHeight = texelY * vertexBlockHeight;
float vertexEdgeHeight = static_cast< float >( imageHeight % blockHeight );
// And in texels
- float texelEdgeWidth = vertexEdgeWidth * texelX;
- float texelEdgeHeight = vertexEdgeHeight * texelY;
+ float texelEdgeWidth = texelX * vertexEdgeWidth;
+ float texelEdgeHeight = texelY * vertexEdgeHeight;
+
+ // We're going to 'blit' half a pixel more on each edge
+ vertexBlockWidth++;
+ vertexEdgeWidth++;
+ vertexBlockHeight++;
+ vertexEdgeHeight++;
// Block by block create the two triangles for the quad
SizeType blockIndex = 0;
float ndcVWidth;
float ndcVHeight;
- Vector2 topLeft = position;
+ // Move back half a pixel
+ Vector2 topLeft = Vector2( position.x - 0.5f, position.y - 0.5f );
for ( SizeType y = 0; y < heightInBlocks; ++y )
{
if ( ( heightInBlocks - 1u ) == y && vertexEdgeHeight > 0.0f )
{
- ndcHeight = texelEdgeHeight;
+ ndcHeight = texelEdgeHeight + texelY;
ndcVHeight = vertexEdgeHeight;
}
else
{
- ndcHeight = texelBlockHeight;
+ ndcHeight = texelBlockHeight + texelY;
ndcVHeight = vertexBlockHeight;
}
float fBlockY = texelBlockHeight * static_cast< float >( block / atlasWidthInBlocks );
// Add on texture filtering compensation
- fBlockX += texelX;
- fBlockY += texelY;
+ fBlockX += halfTexelX;
+ fBlockY += halfTexelY;
if ( ( widthInBlocks - 1u ) == x && vertexEdgeWidth > 0.0f )
{
- ndcWidth = texelEdgeWidth;
+ ndcWidth = texelEdgeWidth + texelX;
ndcVWidth = vertexEdgeWidth;
}
else
{
- ndcWidth = texelBlockWidth;
+ ndcWidth = texelBlockWidth + texelX;
ndcVWidth = vertexBlockWidth;
}
Toolkit::AtlasManager::Mesh2D optimizedMesh;
OptimizeMesh( mesh, optimizedMesh );
}
- //PrintMeshData( mesh );
}
void AtlasManager::PrintMeshData( const Toolkit::AtlasManager::Mesh2D& mesh )
mUploadedImages.PushBack( const_cast< BufferImage& >( image ).GetBuffer() );
}
- // If this is the first block then we need to keep the first pixel free for underline texture
- if ( block )
+ // Blit top strip
+ if ( !mAtlasList[ atlas ].mAtlas.Upload( mAtlasList[ atlas ].mHorizontalStrip,
+ blockOffsetX,
+ blockOffsetY ) )
{
+ DALI_LOG_ERROR("Uploading top strip to Atlas Failed!\n");
+ }
+ else
+ {
+ mUploadedImages.PushBack( NULL );
+ }
- // Blit top strip
- if ( !mAtlasList[ atlas ].mAtlas.Upload( mAtlasList[ atlas ].mHorizontalStrip,
- blockOffsetX,
- blockOffsetY ) )
- {
- DALI_LOG_ERROR("Uploading top strip to Atlas Failed!\n");
- }
- else
- {
- mUploadedImages.PushBack( NULL );
- }
-
- // Blit left strip
- if ( !mAtlasList[ atlas ].mAtlas.Upload( mAtlasList[ atlas ].mVerticalStrip,
- blockOffsetX,
- blockOffsetY + SINGLE_PIXEL_PADDING ) )
- {
- DALI_LOG_ERROR("Uploading left strip to Atlas Failed!\n");
- }
- else
- {
- mUploadedImages.PushBack( NULL );
- }
+ // Blit left strip
+ if ( !mAtlasList[ atlas ].mAtlas.Upload( mAtlasList[ atlas ].mVerticalStrip,
+ blockOffsetX,
+ blockOffsetY + SINGLE_PIXEL_PADDING ) )
+ {
+ DALI_LOG_ERROR("Uploading left strip to Atlas Failed!\n");
+ }
+ else
+ {
+ mUploadedImages.PushBack( NULL );
}
// Blit bottom strip
AtlasManager::SizeType AtlasManager::GetFreeBlocks( AtlasId atlas ) const
{
- if ( atlas && atlas <= mAtlasList.size() )
+ if ( atlas && atlas-- <= mAtlasList.size() )
{
- uint32_t index = atlas - 1u;
- uint32_t width = mAtlasList[ index ].mSize.mWidth;
- uint32_t height = mAtlasList[ index ].mSize.mHeight;
- uint32_t blockWidth = mAtlasList[ index ].mSize.mBlockWidth;
- uint32_t blockHeight = mAtlasList[ index ].mSize.mBlockHeight;
-
- SizeType widthInBlocks = width / blockWidth;
- SizeType heightInBlocks = height / blockHeight;
- uint32_t blockCount = widthInBlocks * heightInBlocks;
-
- // Check free previously unallocated blocks and any free blocks
- if ( mAtlasList[ index ].mNextFreeBlock )
- {
- blockCount -= mAtlasList[ index ].mNextFreeBlock -1u - mAtlasList[ index ].mFreeBlocksList.Size();
- }
- else
- {
- blockCount = mAtlasList[ index ].mFreeBlocksList.Size();
- }
- return blockCount;
+ return ( mAtlasList[ atlas ].mAvailableBlocks + mAtlasList[ atlas ].mFreeBlocksList.Size() );
}
else
{
DALI_LOG_ERROR("Cannot get Atlas from AtlasID ( doesn't exist ).\n");
return Pixel::L8;
}
- return mAtlasList[ atlas -1u ].mPixelFormat;
+ return mAtlasList[ --atlas].mPixelFormat;
}
void AtlasManager::GetMetrics( Toolkit::AtlasManager::Metrics& metrics )
for ( uint32_t i = 0; i < atlasCount; ++i )
{
entry.mSize = mAtlasList[ i ].mSize;
- entry.mTotalBlocks = ( entry.mSize.mWidth / entry.mSize.mBlockWidth ) * ( entry.mSize.mHeight / entry.mSize.mBlockHeight );
- uint32_t reuseBlocks = mAtlasList[ i ].mFreeBlocksList.Size();
- entry.mBlocksUsed = mAtlasList[ i ].mNextFreeBlock ? mAtlasList[ i ].mNextFreeBlock - reuseBlocks - 1u: entry.mTotalBlocks - reuseBlocks;
+ entry.mTotalBlocks = mAtlasList[ i ].mTotalBlocks;
+ entry.mBlocksUsed = entry.mTotalBlocks - mAtlasList[ i ].mAvailableBlocks + mAtlasList[ i ].mFreeBlocksList.Size();
entry.mPixelFormat = GetPixelFormat( i + 1 );
- metrics.mAtlasMetrics.PushBack( entry );
+ metrics.mAtlasMetrics.PushBack( entry );
uint32_t size = entry.mSize.mWidth * entry.mSize.mHeight;
if ( entry.mPixelFormat == Pixel::BGRA8888 )
Material AtlasManager::GetMaterial( AtlasId atlas ) const
{
- if ( atlas && atlas <= mAtlasList.size() )
+ if ( atlas && atlas-- <= mAtlasList.size() )
{
- return mAtlasList[ atlas -1u ].mMaterial;
+ return mAtlasList[ atlas ].mMaterial;
}
Material null;
return null;
Sampler AtlasManager::GetSampler( AtlasId atlas ) const
{
- if ( atlas && atlas <= mAtlasList.size() )
+ if ( atlas && atlas-- <= mAtlasList.size() )
{
- return mAtlasList[ atlas -1u ].mSampler;
+ return mAtlasList[ atlas ].mSampler;
}
Sampler null;
return null;
projects / platform / core / uifw / dali-toolkit.git / blobdiff