+++ /dev/null
- /*
- * Copyright (c) 2018 Samsung Electronics Co., Ltd.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- *
- */
-
-// CLASS HEADER
-#include <dali-toolkit/internal/visuals/texture-manager-impl.h>
-
-// EXTERNAL HEADERS
-#include <cstdlib>
-#include <string>
-#include <dali/public-api/math/vector4.h>
-#include <dali/devel-api/adaptor-framework/environment-variable.h>
-#include <dali/devel-api/adaptor-framework/image-loading.h>
-#include <dali/devel-api/common/hash.h>
-#include <dali/devel-api/images/texture-set-image.h>
-#include <dali/devel-api/adaptor-framework/pixel-buffer.h>
-#include <dali/integration-api/debug.h>
-
-// INTERNAL HEADERS
-#include <dali-toolkit/internal/image-loader/image-atlas-impl.h>
-#include <dali-toolkit/public-api/image-loader/sync-image-loader.h>
-#include <dali-toolkit/internal/visuals/image-atlas-manager.h>
-
-namespace
-{
-
-constexpr auto DEFAULT_NUMBER_OF_LOCAL_LOADER_THREADS = size_t{4u};
-constexpr auto DEFAULT_NUMBER_OF_REMOTE_LOADER_THREADS = size_t{8u};
-
-constexpr auto NUMBER_OF_LOCAL_LOADER_THREADS_ENV = "DALI_TEXTURE_LOCAL_THREADS";
-constexpr auto NUMBER_OF_REMOTE_LOADER_THREADS_ENV = "DALI_TEXTURE_REMOTE_THREADS";
-
-size_t GetNumberOfThreads(const char* environmentVariable, size_t defaultValue)
-{
- using Dali::EnvironmentVariable::GetEnvironmentVariable;
- auto numberString = GetEnvironmentVariable(environmentVariable);
- auto numberOfThreads = numberString ? std::strtoul(numberString, nullptr, 10) : 0;
- constexpr auto MAX_NUMBER_OF_THREADS = 100u;
- DALI_ASSERT_DEBUG( numberOfThreads < MAX_NUMBER_OF_THREADS );
- return ( numberOfThreads > 0 && numberOfThreads < MAX_NUMBER_OF_THREADS ) ? numberOfThreads : defaultValue;
-}
-
-size_t GetNumberOfLocalLoaderThreads()
-{
- return GetNumberOfThreads(NUMBER_OF_LOCAL_LOADER_THREADS_ENV, DEFAULT_NUMBER_OF_LOCAL_LOADER_THREADS);
-}
-
-size_t GetNumberOfRemoteLoaderThreads()
-{
- return GetNumberOfThreads(NUMBER_OF_REMOTE_LOADER_THREADS_ENV, DEFAULT_NUMBER_OF_REMOTE_LOADER_THREADS);
-}
-
-} // namespace
-
-namespace Dali
-{
-
-namespace Toolkit
-{
-
-namespace Internal
-{
-
-namespace
-{
-
-#ifdef DEBUG_ENABLED
-Debug::Filter* gTextureManagerLogFilter = Debug::Filter::New( Debug::NoLogging, false, "LOG_TEXTURE_MANAGER" );
-#endif
-
-const uint32_t DEFAULT_ATLAS_SIZE( 1024u ); ///< This size can fit 8 by 8 images of average size 128 * 128
-const Vector4 FULL_ATLAS_RECT( 0.0f, 0.0f, 1.0f, 1.0f ); ///< UV Rectangle that covers the full Texture
-const int INVALID_INDEX( -1 ); ///< Invalid index used to represent a non-existant TextureInfo struct
-const int INVALID_CACHE_INDEX( -1 ); ///< Invalid Cache index
-
-
-void PreMultiply( Devel::PixelBuffer pixelBuffer, TextureManager::MultiplyOnLoad& preMultiplyOnLoad )
-{
- if( Pixel::HasAlpha( pixelBuffer.GetPixelFormat() ) )
- {
- if( preMultiplyOnLoad == TextureManager::MultiplyOnLoad::MULTIPLY_ON_LOAD )
- {
- pixelBuffer.MultiplyColorByAlpha();
- }
- }
- else
- {
- preMultiplyOnLoad = TextureManager::MultiplyOnLoad::LOAD_WITHOUT_MULTIPLY;
- }
-}
-
-} // Anonymous namespace
-
-TextureManager::MaskingData::MaskingData()
-: mAlphaMaskUrl(),
- mAlphaMaskId( INVALID_TEXTURE_ID ),
- mContentScaleFactor( 1.0f ),
- mCropToMask( true )
-{
-}
-
-TextureManager::TextureManager()
-: mAsyncLocalLoaders( GetNumberOfLocalLoaderThreads(), [&]() { return AsyncLoadingHelper(*this); } ),
- mAsyncRemoteLoaders( GetNumberOfRemoteLoaderThreads(), [&]() { return AsyncLoadingHelper(*this); } ),
- mExternalTextures(),
- mLifecycleObservers(),
- mBrokenImageUrl(""),
- mCurrentTextureId( 0 )
-{
-}
-
-TextureManager::~TextureManager()
-{
- for( auto iter = mLifecycleObservers.Begin(), endIter = mLifecycleObservers.End(); iter != endIter; ++iter)
- {
- (*iter)->TextureManagerDestroyed();
- }
-}
-
-TextureSet TextureManager::LoadTexture(
- const VisualUrl& url, Dali::ImageDimensions desiredSize, Dali::FittingMode::Type fittingMode,
- Dali::SamplingMode::Type samplingMode, const MaskingDataPointer& maskInfo,
- bool synchronousLoading, TextureManager::TextureId& textureId, Vector4& textureRect,
- Dali::ImageDimensions& textureRectSize, bool& atlasingStatus, bool& loadingStatus,
- Dali::WrapMode::Type wrapModeU, Dali::WrapMode::Type wrapModeV, TextureUploadObserver* textureObserver,
- AtlasUploadObserver* atlasObserver, ImageAtlasManagerPtr imageAtlasManager, bool orientationCorrection,
- TextureManager::ReloadPolicy reloadPolicy, TextureManager::MultiplyOnLoad& preMultiplyOnLoad )
-{
- TextureSet textureSet;
-
- loadingStatus = false;
- textureRect = FULL_ATLAS_RECT;
-
- if( VisualUrl::TEXTURE == url.GetProtocolType())
- {
- std::string location = url.GetLocation();
- if( location.size() > 0u )
- {
- TextureId id = std::stoi( location );
- for( auto&& elem : mExternalTextures )
- {
- if( elem.textureId == id )
- {
- preMultiplyOnLoad = TextureManager::MultiplyOnLoad::LOAD_WITHOUT_MULTIPLY;
- textureId = elem.textureId;
- return elem.textureSet;
- }
- }
- }
- }
- else if( synchronousLoading )
- {
- PixelData data;
- if( url.IsValid() )
- {
- Devel::PixelBuffer pixelBuffer = LoadImageFromFile( url.GetUrl(), desiredSize, fittingMode, samplingMode,
- orientationCorrection );
- if( pixelBuffer )
- {
- PreMultiply( pixelBuffer, preMultiplyOnLoad );
- data = Devel::PixelBuffer::Convert(pixelBuffer); // takes ownership of buffer
- }
- }
- if( !data )
- {
- // use broken image
- textureSet = TextureSet::New();
- Devel::PixelBuffer pixelBuffer = LoadImageFromFile( mBrokenImageUrl );
- if( pixelBuffer )
- {
- PreMultiply( pixelBuffer, preMultiplyOnLoad );
- data = Devel::PixelBuffer::Convert(pixelBuffer); // takes ownership of buffer
- }
- Texture texture = Texture::New( Dali::TextureType::TEXTURE_2D, data.GetPixelFormat(),
- data.GetWidth(), data.GetHeight() );
- texture.Upload( data );
- textureSet = TextureSet::New();
- textureSet.SetTexture( 0u, texture );
- }
- else
- {
- if( atlasingStatus ) // attempt atlasing
- {
- textureSet = imageAtlasManager->Add( textureRect, data );
- }
- if( !textureSet ) // big image, no atlasing or atlasing failed
- {
- atlasingStatus = false;
- Texture texture = Texture::New( Dali::TextureType::TEXTURE_2D, data.GetPixelFormat(),
- data.GetWidth(), data.GetHeight() );
- texture.Upload( data );
- textureSet = TextureSet::New();
- textureSet.SetTexture( 0u, texture );
- }
- else
- {
- textureRectSize.SetWidth(data.GetWidth());
- textureRectSize.SetHeight(data.GetHeight());
- }
- }
- }
- else
- {
- loadingStatus = true;
- if( atlasingStatus )
- {
- textureSet = imageAtlasManager->Add( textureRect, url.GetUrl(), desiredSize, fittingMode, true, atlasObserver);
- }
- if( !textureSet ) // big image, no atlasing or atlasing failed
- {
- atlasingStatus = false;
- if( !maskInfo )
- {
- textureId = RequestLoad( url, desiredSize, fittingMode, samplingMode, TextureManager::NO_ATLAS,
- textureObserver, orientationCorrection, reloadPolicy, preMultiplyOnLoad );
- }
- else
- {
- textureId = RequestLoad( url,
- maskInfo->mAlphaMaskId,
- maskInfo->mContentScaleFactor,
- desiredSize,
- fittingMode, samplingMode,
- TextureManager::NO_ATLAS,
- maskInfo->mCropToMask,
- textureObserver,
- orientationCorrection,
- reloadPolicy, preMultiplyOnLoad );
- }
-
- TextureManager::LoadState loadState = GetTextureStateInternal( textureId );
- loadingStatus = ( loadState == TextureManager::LOADING );
-
- if( loadState == TextureManager::UPLOADED )
- {
- // UploadComplete has already been called - keep the same texture set
- textureSet = GetTextureSet( textureId );
- }
- }
- else
- {
- textureRectSize = desiredSize;
- }
- }
-
- if( ! atlasingStatus && textureSet )
- {
- Sampler sampler = Sampler::New();
- sampler.SetWrapMode( wrapModeU, wrapModeV );
- textureSet.SetSampler( 0u, sampler );
- }
-
- return textureSet;
-}
-
-TextureManager::TextureId TextureManager::RequestLoad(
- const VisualUrl& url,
- const ImageDimensions desiredSize,
- FittingMode::Type fittingMode,
- Dali::SamplingMode::Type samplingMode,
- const UseAtlas useAtlas,
- TextureUploadObserver* observer,
- bool orientationCorrection,
- TextureManager::ReloadPolicy reloadPolicy,
- TextureManager::MultiplyOnLoad& preMultiplyOnLoad )
-{
- return RequestLoadInternal( url, INVALID_TEXTURE_ID, 1.0f, desiredSize, fittingMode, samplingMode, useAtlas,
- false, UPLOAD_TO_TEXTURE, observer, orientationCorrection, reloadPolicy,
- preMultiplyOnLoad );
-}
-
-TextureManager::TextureId TextureManager::RequestLoad(
- const VisualUrl& url,
- TextureId maskTextureId,
- float contentScale,
- const ImageDimensions desiredSize,
- FittingMode::Type fittingMode,
- Dali::SamplingMode::Type samplingMode,
- const UseAtlas useAtlas,
- bool cropToMask,
- TextureUploadObserver* observer,
- bool orientationCorrection,
- TextureManager::ReloadPolicy reloadPolicy,
- TextureManager::MultiplyOnLoad& preMultiplyOnLoad )
-{
- return RequestLoadInternal( url, maskTextureId, contentScale, desiredSize, fittingMode, samplingMode, useAtlas,
- cropToMask, UPLOAD_TO_TEXTURE, observer, orientationCorrection, reloadPolicy,
- preMultiplyOnLoad );
-}
-
-TextureManager::TextureId TextureManager::RequestMaskLoad( const VisualUrl& maskUrl )
-{
- // Use the normal load procedure to get the alpha mask.
- auto preMultiply = TextureManager::MultiplyOnLoad::LOAD_WITHOUT_MULTIPLY;
- return RequestLoadInternal( maskUrl, INVALID_TEXTURE_ID, 1.0f, ImageDimensions(), FittingMode::SCALE_TO_FILL,
- SamplingMode::NO_FILTER, NO_ATLAS, false, KEEP_PIXEL_BUFFER, NULL, true,
- TextureManager::ReloadPolicy::CACHED, preMultiply );
-}
-
-TextureManager::TextureId TextureManager::RequestLoadInternal(
- const VisualUrl& url,
- TextureId maskTextureId,
- float contentScale,
- const ImageDimensions desiredSize,
- FittingMode::Type fittingMode,
- Dali::SamplingMode::Type samplingMode,
- UseAtlas useAtlas,
- bool cropToMask,
- StorageType storageType,
- TextureUploadObserver* observer,
- bool orientationCorrection,
- TextureManager::ReloadPolicy reloadPolicy,
- TextureManager::MultiplyOnLoad& preMultiplyOnLoad)
-{
- // First check if the requested Texture is cached.
- const TextureHash textureHash = GenerateHash( url.GetUrl(), desiredSize, fittingMode, samplingMode, useAtlas,
- maskTextureId, preMultiplyOnLoad );
-
- TextureManager::TextureId textureId = INVALID_TEXTURE_ID;
-
- // Look up the texture by hash. Note: The extra parameters are used in case of a hash collision.
- int cacheIndex = FindCachedTexture( textureHash, url.GetUrl(), desiredSize, fittingMode, samplingMode, useAtlas,
- maskTextureId, preMultiplyOnLoad );
-
- // Check if the requested Texture exists in the cache.
- if( cacheIndex != INVALID_CACHE_INDEX )
- {
- if ( TextureManager::ReloadPolicy::CACHED == reloadPolicy )
- {
- // Mark this texture being used by another client resource. Forced reload would replace the current texture
- // without the need for incrementing the reference count.
- ++( mTextureInfoContainer[ cacheIndex ].referenceCount );
- }
- textureId = mTextureInfoContainer[ cacheIndex ].textureId;
- DALI_LOG_INFO( gTextureManagerLogFilter, Debug::Concise, "TextureManager::RequestLoad( url=%s observer=%p ) Using cached texture id@%d, textureId=%d\n",
- url.GetUrl().c_str(), observer, cacheIndex, textureId );
- }
-
- if( textureId == INVALID_TEXTURE_ID ) // There was no caching, or caching not required
- {
- // We need a new Texture.
- textureId = GenerateUniqueTextureId();
- bool preMultiply = ( preMultiplyOnLoad == TextureManager::MultiplyOnLoad::MULTIPLY_ON_LOAD );
- mTextureInfoContainer.push_back( TextureInfo( textureId, maskTextureId, url.GetUrl(),
- desiredSize, contentScale, fittingMode, samplingMode,
- false, cropToMask, useAtlas, textureHash, orientationCorrection,
- preMultiply ) );
- cacheIndex = mTextureInfoContainer.size() - 1u;
-
- DALI_LOG_INFO( gTextureManagerLogFilter, Debug::Concise, "TextureManager::RequestLoad( url=%s observer=%p ) New texture, cacheIndex:%d, textureId=%d\n",
- url.GetUrl().c_str(), observer, cacheIndex, textureId );
- }
-
- // The below code path is common whether we are using the cache or not.
- // The textureInfoIndex now refers to either a pre-existing cached TextureInfo,
- // or a new TextureInfo just created.
- TextureInfo& textureInfo( mTextureInfoContainer[ cacheIndex ] );
- textureInfo.maskTextureId = maskTextureId;
- textureInfo.storageType = storageType;
- textureInfo.orientationCorrection = orientationCorrection;
-
- DALI_LOG_INFO( gTextureManagerLogFilter, Debug::Concise, "TextureInfo loadState:%s\n",
- textureInfo.loadState == TextureManager::NOT_STARTED ? "NOT_STARTED" :
- textureInfo.loadState == TextureManager::LOADING ? "LOADING" :
- textureInfo.loadState == TextureManager::UPLOADED ? "UPLOADED" :
- textureInfo.loadState == TextureManager::CANCELLED ? "CANCELLED" : "Unknown" );
-
- // Force reloading of texture by setting loadState unless already loading or cancelled.
- if ( TextureManager::ReloadPolicy::FORCED == reloadPolicy && TextureManager::LOADING != textureInfo.loadState &&
- TextureManager::CANCELLED != textureInfo.loadState )
- {
- DALI_LOG_INFO( gTextureManagerLogFilter, Debug::Verbose, "TextureManager::RequestLoad( url=%s observer=%p ) ForcedReload cacheIndex:%d, textureId=%d\n",
- url.GetUrl().c_str(), observer, cacheIndex, textureId );
- textureInfo.loadState = TextureManager::NOT_STARTED;
- }
-
- // Check if we should add the observer.
- // Only do this if we have not loaded yet and it will not have loaded by the end of this method.
- switch( textureInfo.loadState )
- {
- case TextureManager::LOAD_FAILED: // Failed notifies observer which then stops observing.
- case TextureManager::NOT_STARTED:
- {
- LoadTexture( textureInfo );
- ObserveTexture( textureInfo, observer );
- break;
- }
- case TextureManager::LOADING:
- {
- ObserveTexture( textureInfo, observer );
- break;
- }
- case TextureManager::UPLOADED:
- {
- if( observer )
- {
- // The Texture has already loaded. The other observers have already been notified.
- // We need to send a "late" loaded notification for this observer.
- observer->UploadComplete( true, textureInfo.textureId, textureInfo.textureSet,
- textureInfo.useAtlas, textureInfo.atlasRect,
- textureInfo.preMultiplied );
- }
- break;
- }
- case TextureManager::CANCELLED:
- {
- // A cancelled texture hasn't finished loading yet. Treat as a loading texture
- // (it's ref count has already been incremented, above)
- textureInfo.loadState = TextureManager::LOADING;
- ObserveTexture( textureInfo, observer );
- break;
- }
- case TextureManager::LOAD_FINISHED:
- case TextureManager::WAITING_FOR_MASK:
- // Loading has already completed. Do nothing.
- break;
- }
-
- // Return the TextureId for which this Texture can now be referenced by externally.
- return textureId;
-}
-
-void TextureManager::Remove( const TextureManager::TextureId textureId )
-{
- int textureInfoIndex = GetCacheIndexFromId( textureId );
- if( textureInfoIndex != INVALID_INDEX )
- {
- TextureInfo& textureInfo( mTextureInfoContainer[ textureInfoIndex ] );
-
- DALI_LOG_INFO( gTextureManagerLogFilter, Debug::Concise, "TextureManager::Remove(%d) cacheIdx:%d loadState:%s\n",
- textureId, textureInfoIndex,
- textureInfo.loadState == TextureManager::NOT_STARTED ? "NOT_STARTED" :
- textureInfo.loadState == TextureManager::LOADING ? "LOADING" :
- textureInfo.loadState == TextureManager::UPLOADED ? "UPLOADED" :
- textureInfo.loadState == TextureManager::CANCELLED ? "CANCELLED" : "Unknown" );
-
- // Decrement the reference count and check if this is the last user of this Texture.
- if( --textureInfo.referenceCount <= 0 )
- {
- // This is the last remove for this Texture.
- textureInfo.referenceCount = 0;
- bool removeTextureInfo = false;
-
- // If loaded, we can remove the TextureInfo and the Atlas (if atlased).
- if( textureInfo.loadState == UPLOADED )
- {
- if( textureInfo.atlas )
- {
- textureInfo.atlas.Remove( textureInfo.atlasRect );
- }
- removeTextureInfo = true;
- }
- else if( textureInfo.loadState == LOADING )
- {
- // We mark the textureInfo for removal.
- // Once the load has completed, this method will be called again.
- textureInfo.loadState = CANCELLED;
- }
- else
- {
- // In other states, we are not waiting for a load so we are safe to remove the TextureInfo data.
- removeTextureInfo = true;
- }
-
- // If the state allows us to remove the TextureInfo data, we do so.
- if( removeTextureInfo )
- {
- // Permanently remove the textureInfo struct.
- mTextureInfoContainer.erase( mTextureInfoContainer.begin() + textureInfoIndex );
- }
- }
- }
-}
-
-VisualUrl TextureManager::GetVisualUrl( TextureId textureId )
-{
- VisualUrl visualUrl("");
- int cacheIndex = GetCacheIndexFromId( textureId );
-
- if( cacheIndex != INVALID_CACHE_INDEX )
- {
- DALI_LOG_INFO( gTextureManagerLogFilter, Debug::Concise, "TextureManager::GetVisualUrl. Using cached texture id=%d, textureId=%d\n",
- cacheIndex, textureId );
-
- TextureInfo& cachedTextureInfo( mTextureInfoContainer[ cacheIndex ] );
- visualUrl = cachedTextureInfo.url;
- }
- return visualUrl;
-}
-
-TextureManager::LoadState TextureManager::GetTextureState( TextureId textureId )
-{
- LoadState loadState = TextureManager::NOT_STARTED;
-
- int cacheIndex = GetCacheIndexFromId( textureId );
- if( cacheIndex != INVALID_CACHE_INDEX )
- {
- TextureInfo& cachedTextureInfo( mTextureInfoContainer[ cacheIndex ] );
- loadState = cachedTextureInfo.loadState;
- }
- else
- {
- for( auto&& elem : mExternalTextures )
- {
- if( elem.textureId == textureId )
- {
- loadState = LoadState::UPLOADED;
- break;
- }
- }
- }
- return loadState;
-}
-
-TextureManager::LoadState TextureManager::GetTextureStateInternal( TextureId textureId )
-{
- LoadState loadState = TextureManager::NOT_STARTED;
-
- int cacheIndex = GetCacheIndexFromId( textureId );
- if( cacheIndex != INVALID_CACHE_INDEX )
- {
- TextureInfo& cachedTextureInfo( mTextureInfoContainer[ cacheIndex ] );
- loadState = cachedTextureInfo.loadState;
- }
-
- return loadState;
-}
-
-TextureSet TextureManager::GetTextureSet( TextureId textureId )
-{
- TextureSet textureSet;// empty handle
-
- int cacheIndex = GetCacheIndexFromId( textureId );
- if( cacheIndex != INVALID_CACHE_INDEX )
- {
- TextureInfo& cachedTextureInfo( mTextureInfoContainer[ cacheIndex ] );
- textureSet = cachedTextureInfo.textureSet;
- }
- else
- {
- for( auto&& elem : mExternalTextures )
- {
- if( elem.textureId == textureId )
- {
- textureSet = elem.textureSet;
- break;
- }
- }
- }
- return textureSet;
-}
-
-std::string TextureManager::AddExternalTexture( TextureSet& textureSet )
-{
- TextureManager::ExternalTextureInfo info;
- info.textureId = GenerateUniqueTextureId();
- info.textureSet = textureSet;
- mExternalTextures.emplace_back( info );
- return VisualUrl::CreateTextureUrl( std::to_string( info.textureId ) );
-}
-
-TextureSet TextureManager::RemoveExternalTexture( const std::string& url )
-{
- if( url.size() > 0u )
- {
- // get the location from the Url
- VisualUrl parseUrl( url );
- if( VisualUrl::TEXTURE == parseUrl.GetProtocolType() )
- {
- std::string location = parseUrl.GetLocation();
- if( location.size() > 0u )
- {
- TextureId id = std::stoi( location );
- const auto end = mExternalTextures.end();
- for( auto iter = mExternalTextures.begin(); iter != end; ++iter )
- {
- if( iter->textureId == id )
- {
- auto textureSet = iter->textureSet;
- mExternalTextures.erase( iter );
- return textureSet;
- }
- }
- }
- }
- }
- return TextureSet();
-}
-
-
-void TextureManager::AddObserver( TextureManager::LifecycleObserver& observer )
-{
- // make sure an observer doesn't observe the same object twice
- // otherwise it will get multiple calls to ObjectDestroyed()
- DALI_ASSERT_DEBUG( mLifecycleObservers.End() == std::find( mLifecycleObservers.Begin(), mLifecycleObservers.End(), &observer));
- mLifecycleObservers.PushBack( &observer );
-}
-
-void TextureManager::RemoveObserver( TextureManager::LifecycleObserver& observer)
-{
- // Find the observer...
- auto endIter = mLifecycleObservers.End();
- for( auto iter = mLifecycleObservers.Begin(); iter != endIter; ++iter)
- {
- if( (*iter) == &observer)
- {
- mLifecycleObservers.Erase( iter );
- break;
- }
- }
- DALI_ASSERT_DEBUG(endIter != mLifecycleObservers.End());
-}
-
-
-bool TextureManager::LoadTexture( TextureInfo& textureInfo )
-{
- bool success = true;
-
- if( textureInfo.loadState == NOT_STARTED )
- {
- textureInfo.loadState = LOADING;
-
- if( !textureInfo.loadSynchronously )
- {
- auto& loadersContainer = textureInfo.url.IsLocalResource() ? mAsyncLocalLoaders : mAsyncRemoteLoaders;
- auto loadingHelperIt = loadersContainer.GetNext();
- DALI_ASSERT_ALWAYS(loadingHelperIt != loadersContainer.End());
- loadingHelperIt->Load(textureInfo.textureId, textureInfo.url,
- textureInfo.desiredSize, textureInfo.fittingMode,
- textureInfo.samplingMode, textureInfo.orientationCorrection );
- }
- }
-
- return success;
-}
-
-void TextureManager::ObserveTexture( TextureInfo& textureInfo,
- TextureUploadObserver* observer )
-{
- if( observer )
- {
- textureInfo.observerList.PushBack( observer );
- observer->DestructionSignal().Connect( this, &TextureManager::ObserverDestroyed );
- }
-}
-
-void TextureManager::AsyncLoadComplete( AsyncLoadingInfoContainerType& loadingContainer, uint32_t id,
- Devel::PixelBuffer pixelBuffer )
-{
- DALI_LOG_INFO( gTextureManagerLogFilter, Debug::Concise, "TextureManager::AsyncLoadComplete( id:%d )\n", id );
-
- if( loadingContainer.size() >= 1u )
- {
- AsyncLoadingInfo loadingInfo = loadingContainer.front();
-
- if( loadingInfo.loadId == id )
- {
- int cacheIndex = GetCacheIndexFromId( loadingInfo.textureId );
- if( cacheIndex != INVALID_CACHE_INDEX )
- {
- TextureInfo& textureInfo( mTextureInfoContainer[cacheIndex] );
-
- DALI_LOG_INFO( gTextureManagerLogFilter, Debug::Concise, " CacheIndex:%d LoadState: %d\n", cacheIndex, textureInfo.loadState );
-
- if( textureInfo.loadState != CANCELLED )
- {
- // textureInfo can be invalidated after this call (as the mTextureInfoContainer may be modified)
- PostLoad( textureInfo, pixelBuffer );
- }
- else
- {
- Remove( textureInfo.textureId );
- }
- }
- }
-
- loadingContainer.pop_front();
- }
-}
-
-void TextureManager::PostLoad( TextureInfo& textureInfo, Devel::PixelBuffer& pixelBuffer )
-{
- // Was the load successful?
- if( pixelBuffer && ( pixelBuffer.GetWidth() != 0 ) && ( pixelBuffer.GetHeight() != 0 ) )
- {
- // No atlas support for now
- textureInfo.useAtlas = NO_ATLAS;
-
- if( textureInfo.storageType == UPLOAD_TO_TEXTURE )
- {
- // If there is a mask texture ID associated with this texture, then apply the mask
- // if it's already loaded. If it hasn't, and the mask is still loading,
- // wait for the mask to finish loading.
- if( textureInfo.maskTextureId != INVALID_TEXTURE_ID )
- {
- LoadState maskLoadState = GetTextureStateInternal( textureInfo.maskTextureId );
- if( maskLoadState == LOADING )
- {
- textureInfo.pixelBuffer = pixelBuffer; // Store the pixel buffer temporarily
- textureInfo.loadState = WAITING_FOR_MASK;
- }
- else if( maskLoadState == LOAD_FINISHED )
- {
- ApplyMask( pixelBuffer, textureInfo.maskTextureId, textureInfo.scaleFactor, textureInfo.cropToMask );
- UploadTexture( pixelBuffer, textureInfo );
- NotifyObservers( textureInfo, true );
- }
- }
- else
- {
- UploadTexture( pixelBuffer, textureInfo );
- NotifyObservers( textureInfo, true );
- }
- }
- else
- {
- textureInfo.pixelBuffer = pixelBuffer; // Store the pixel data
- textureInfo.loadState = LOAD_FINISHED;
-
- // Check if there was another texture waiting for this load to complete
- // (e.g. if this was an image mask, and its load is on a different thread)
- CheckForWaitingTexture( textureInfo );
- }
- }
- else
- {
- DALI_LOG_ERROR( "TextureManager::AsyncImageLoad(%s) failed\n", textureInfo.url.GetUrl().c_str() );
- // @todo If the load was unsuccessful, upload the broken image.
- textureInfo.loadState = LOAD_FAILED;
- CheckForWaitingTexture( textureInfo );
- NotifyObservers( textureInfo, false );
- }
-}
-
-void TextureManager::CheckForWaitingTexture( TextureInfo& maskTextureInfo )
-{
- // Search the cache, checking if any texture has this texture id as a
- // maskTextureId:
- const unsigned int size = mTextureInfoContainer.size();
-
- for( unsigned int cacheIndex = 0; cacheIndex < size; ++cacheIndex )
- {
- if( mTextureInfoContainer[cacheIndex].maskTextureId == maskTextureInfo.textureId &&
- mTextureInfoContainer[cacheIndex].loadState == WAITING_FOR_MASK )
- {
- TextureInfo& textureInfo( mTextureInfoContainer[cacheIndex] );
- Devel::PixelBuffer pixelBuffer = textureInfo.pixelBuffer;
- textureInfo.pixelBuffer.Reset();
-
- if( maskTextureInfo.loadState == LOAD_FINISHED )
- {
- ApplyMask( pixelBuffer, maskTextureInfo.textureId, textureInfo.scaleFactor, textureInfo.cropToMask );
- UploadTexture( pixelBuffer, textureInfo );
- NotifyObservers( textureInfo, true );
- }
- else
- {
- DALI_LOG_ERROR( "TextureManager::ApplyMask to %s failed\n", textureInfo.url.GetUrl().c_str() );
- textureInfo.loadState = LOAD_FAILED;
- NotifyObservers( textureInfo, false );
- }
- }
- }
-}
-
-void TextureManager::ApplyMask(
- Devel::PixelBuffer& pixelBuffer, TextureId maskTextureId,
- float contentScale, bool cropToMask )
-{
- int maskCacheIndex = GetCacheIndexFromId( maskTextureId );
- if( maskCacheIndex != INVALID_CACHE_INDEX )
- {
- Devel::PixelBuffer maskPixelBuffer = mTextureInfoContainer[maskCacheIndex].pixelBuffer;
- pixelBuffer.ApplyMask( maskPixelBuffer, contentScale, cropToMask );
- }
-}
-
-
-void TextureManager::UploadTexture( Devel::PixelBuffer& pixelBuffer, TextureInfo& textureInfo )
-{
- if( textureInfo.useAtlas != USE_ATLAS )
- {
- DALI_LOG_INFO( gTextureManagerLogFilter, Debug::Concise, " TextureManager::UploadTexture() New Texture for textureId:%d\n", textureInfo.textureId );
-
- // If the texture doesn't have an alpha channel, can't pre-multiply it.
- // Ensure that we don't change the load parameter (it's used for hashing), and instead set
- // the status for use in the observer.
- auto preMultiply = textureInfo.preMultiplyOnLoad ? TextureManager::MultiplyOnLoad::MULTIPLY_ON_LOAD :
- TextureManager::MultiplyOnLoad::LOAD_WITHOUT_MULTIPLY;
- PreMultiply( pixelBuffer, preMultiply );
- textureInfo.preMultiplied = (preMultiply == TextureManager::MultiplyOnLoad::MULTIPLY_ON_LOAD );
-
- Texture texture = Texture::New( Dali::TextureType::TEXTURE_2D, pixelBuffer.GetPixelFormat(),
- pixelBuffer.GetWidth(), pixelBuffer.GetHeight() );
-
- PixelData pixelData = Devel::PixelBuffer::Convert( pixelBuffer );
- texture.Upload( pixelData );
- if ( ! textureInfo.textureSet )
- {
- textureInfo.textureSet = TextureSet::New();
- }
- textureInfo.textureSet.SetTexture( 0u, texture );
- }
-
- // Update the load state.
- // Note: This is regardless of success as we care about whether a
- // load attempt is in progress or not. If unsuccessful, a broken
- // image is still loaded.
- textureInfo.loadState = UPLOADED;
-}
-
-void TextureManager::NotifyObservers( TextureInfo& textureInfo, bool success )
-{
- TextureId textureId = textureInfo.textureId;
-
- // If there is an observer: Notify the load is complete, whether successful or not,
- // and erase it from the list
- unsigned int observerCount = textureInfo.observerList.Count();
- TextureInfo* info = &textureInfo;
-
- while( observerCount )
- {
- TextureUploadObserver* observer = info->observerList[0];
-
- // During UploadComplete() a Control ResourceReady() signal is emitted.
- // During that signal the app may add remove /add Textures (e.g. via
- // ImageViews). At this point no more observers can be added to the
- // observerList, because textureInfo.loadState = UPLOADED. However it is
- // possible for observers to be removed, hence we check the observer list
- // count every iteration.
-
- // The reference to the textureInfo struct can also become invalidated,
- // because new load requests can modify the mTextureInfoContainer list
- // (e.g. if more requests are pushed back it can cause the list to be
- // resized invalidating the reference to the TextureInfo ).
- observer->UploadComplete( success, info->textureId, info->textureSet, info->useAtlas, info->atlasRect,
- info->preMultiplied );
- observer->DestructionSignal().Disconnect( this, &TextureManager::ObserverDestroyed );
-
- // Get the textureInfo from the container again as it may have been
- // invalidated,
-
- int textureInfoIndex = GetCacheIndexFromId( textureId );
- if( textureInfoIndex == INVALID_CACHE_INDEX)
- {
- return; // texture has been removed - can stop.
- }
-
- info = &mTextureInfoContainer[ textureInfoIndex ];
- observerCount = info->observerList.Count();
- if ( observerCount > 0 )
- {
- // remove the observer that was just triggered if it's still in the list
- for( TextureInfo::ObserverListType::Iterator j = info->observerList.Begin(); j != info->observerList.End(); ++j )
- {
- if( *j == observer )
- {
- info->observerList.Erase( j );
- observerCount--;
- break;
- }
- }
- }
- }
-}
-
-TextureManager::TextureId TextureManager::GenerateUniqueTextureId()
-{
- return mCurrentTextureId++;
-}
-
-int TextureManager::GetCacheIndexFromId( const TextureId textureId )
-{
- const unsigned int size = mTextureInfoContainer.size();
-
- for( unsigned int i = 0; i < size; ++i )
- {
- if( mTextureInfoContainer[i].textureId == textureId )
- {
- return i;
- }
- }
-
- return INVALID_CACHE_INDEX;
-}
-
-TextureManager::TextureHash TextureManager::GenerateHash(
- const std::string& url,
- const ImageDimensions size,
- const FittingMode::Type fittingMode,
- const Dali::SamplingMode::Type samplingMode,
- const UseAtlas useAtlas,
- TextureId maskTextureId,
- TextureManager::MultiplyOnLoad preMultiplyOnLoad)
-{
- std::string hashTarget( url );
- const size_t urlLength = hashTarget.length();
- const uint16_t width = size.GetWidth();
- const uint16_t height = size.GetWidth();
-
- // If either the width or height has been specified, include the resizing options in the hash
- if( width != 0 || height != 0 )
- {
- // We are appending 5 bytes to the URL to form the hash input.
- hashTarget.resize( urlLength + 5u );
- char* hashTargetPtr = &( hashTarget[ urlLength ] );
-
- // Pack the width and height (4 bytes total).
- *hashTargetPtr++ = size.GetWidth() & 0xff;
- *hashTargetPtr++ = ( size.GetWidth() >> 8u ) & 0xff;
- *hashTargetPtr++ = size.GetHeight() & 0xff;
- *hashTargetPtr++ = ( size.GetHeight() >> 8u ) & 0xff;
-
- // Bit-pack the FittingMode, SamplingMode and atlasing.
- // FittingMode=2bits, SamplingMode=3bits, useAtlas=1bit
- *hashTargetPtr = ( fittingMode << 4u ) | ( samplingMode << 1 ) | useAtlas;
- }
- else
- {
- // We are not including sizing information, but we still need an extra byte for atlasing.
- hashTarget.resize( urlLength + 1u );
- // Add the atlasing to the hash input.
- hashTarget[ urlLength ] = useAtlas;
- }
-
- if( maskTextureId != INVALID_TEXTURE_ID )
- {
- auto textureIdIndex = hashTarget.length();
- hashTarget.resize( hashTarget.length() + sizeof( TextureId ) );
- unsigned char* hashTargetPtr = reinterpret_cast<unsigned char*>(&( hashTarget[ textureIdIndex ] ));
-
- // Append the texture id to the end of the URL byte by byte:
- // (to avoid SIGBUS / alignment issues)
- for( size_t byteIter = 0; byteIter < sizeof( TextureId ); ++byteIter )
- {
- *hashTargetPtr++ = maskTextureId & 0xff;
- maskTextureId >>= 8u;
- }
- }
-
- auto premultipliedIndex = hashTarget.length();
- hashTarget.resize( premultipliedIndex + 1 );
- switch( preMultiplyOnLoad )
- {
- case TextureManager::MultiplyOnLoad::MULTIPLY_ON_LOAD:
- {
- hashTarget[ premultipliedIndex ] = 't';
- break;
- }
- case TextureManager::MultiplyOnLoad::LOAD_WITHOUT_MULTIPLY:
- {
- hashTarget[ premultipliedIndex ] = 'f';
- break;
- }
- }
-
- return Dali::CalculateHash( hashTarget );
-}
-
-int TextureManager::FindCachedTexture(
- const TextureManager::TextureHash hash,
- const std::string& url,
- const ImageDimensions size,
- const FittingMode::Type fittingMode,
- const Dali::SamplingMode::Type samplingMode,
- const bool useAtlas,
- TextureId maskTextureId,
- TextureManager::MultiplyOnLoad preMultiplyOnLoad )
-{
- // Default to an invalid ID, in case we do not find a match.
- int cacheIndex = INVALID_CACHE_INDEX;
-
- // Iterate through our hashes to find a match.
- const unsigned int count = mTextureInfoContainer.size();
- for( unsigned int i = 0u; i < count; ++i )
- {
- if( mTextureInfoContainer[i].hash == hash )
- {
- // We have a match, now we check all the original parameters in case of a hash collision.
- TextureInfo& textureInfo( mTextureInfoContainer[i] );
- auto multiplyOnLoad = textureInfo.preMultiplyOnLoad ? TextureManager::MultiplyOnLoad::MULTIPLY_ON_LOAD :
- TextureManager::MultiplyOnLoad::LOAD_WITHOUT_MULTIPLY;
-
- if( ( url == textureInfo.url.GetUrl() ) &&
- ( useAtlas == textureInfo.useAtlas ) &&
- ( maskTextureId == textureInfo.maskTextureId ) &&
- ( size == textureInfo.desiredSize ) &&
- ( preMultiplyOnLoad == multiplyOnLoad ) &&
- ( ( size.GetWidth() == 0 && size.GetHeight() == 0 ) ||
- ( fittingMode == textureInfo.fittingMode &&
- samplingMode == textureInfo.samplingMode ) ) )
- {
- // The found Texture is a match.
- cacheIndex = i;
- break;
- }
- }
- }
-
- return cacheIndex;
-}
-
-void TextureManager::ObserverDestroyed( TextureUploadObserver* observer )
-{
- const unsigned int count = mTextureInfoContainer.size();
- for( unsigned int i = 0; i < count; ++i )
- {
- TextureInfo& textureInfo( mTextureInfoContainer[i] );
- for( TextureInfo::ObserverListType::Iterator j = textureInfo.observerList.Begin();
- j != textureInfo.observerList.End(); )
- {
- if( *j == observer )
- {
- j = textureInfo.observerList.Erase( j );
- }
- else
- {
- ++j;
- }
- }
- }
-}
-
-
-TextureManager::AsyncLoadingHelper::AsyncLoadingHelper(TextureManager& textureManager)
-: AsyncLoadingHelper(Toolkit::AsyncImageLoader::New(), textureManager,
- AsyncLoadingInfoContainerType())
-{
-}
-
-void TextureManager::AsyncLoadingHelper::Load(TextureId textureId,
- const VisualUrl& url,
- ImageDimensions desiredSize,
- FittingMode::Type fittingMode,
- SamplingMode::Type samplingMode,
- bool orientationCorrection)
-{
- mLoadingInfoContainer.push_back(AsyncLoadingInfo(textureId));
- auto id = mLoader.Load(url.GetUrl(), desiredSize, fittingMode, samplingMode, orientationCorrection);
- mLoadingInfoContainer.back().loadId = id;
-}
-
-TextureManager::AsyncLoadingHelper::AsyncLoadingHelper(AsyncLoadingHelper&& rhs)
-: AsyncLoadingHelper(rhs.mLoader, rhs.mTextureManager, std::move(rhs.mLoadingInfoContainer))
-{
-}
-
-TextureManager::AsyncLoadingHelper::AsyncLoadingHelper(
- Toolkit::AsyncImageLoader loader,
- TextureManager& textureManager,
- AsyncLoadingInfoContainerType&& loadingInfoContainer)
-: mLoader(loader),
- mTextureManager(textureManager),
- mLoadingInfoContainer(std::move(loadingInfoContainer))
-{
- DevelAsyncImageLoader::PixelBufferLoadedSignal(mLoader).Connect(
- this, &AsyncLoadingHelper::AsyncLoadComplete);
-}
-
-void TextureManager::AsyncLoadingHelper::AsyncLoadComplete(uint32_t id,
- Devel::PixelBuffer pixelBuffer)
-{
- mTextureManager.AsyncLoadComplete(mLoadingInfoContainer, id, pixelBuffer);
-}
-
-void TextureManager::SetBrokenImageUrl(const std::string& brokenImageUrl)
-{
- mBrokenImageUrl = brokenImageUrl;
-}
-
-} // namespace Internal
-
-} // namespace Toolkit
-
-} // namespace Dali
projects / platform / core / uifw / dali-toolkit.git / blobdiff