+++ /dev/null
-#ifndef DALI_TOOLKIT_IMAGE_LOAD_THREAD_H
-#define DALI_TOOLKIT_IMAGE_LOAD_THREAD_H
-
-/*
- * Copyright (c) 2019 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.
- */
-
-// EXTERNAL INCLUDES
-#include <dali/public-api/common/dali-vector.h>
-#include <dali/public-api/object/ref-object.h>
-#include <dali/public-api/images/image-operations.h>
-#include <dali/devel-api/threading/conditional-wait.h>
-#include <dali/devel-api/threading/mutex.h>
-#include <dali/devel-api/threading/thread.h>
-#include <dali/devel-api/adaptor-framework/event-thread-callback.h>
-#include <dali/devel-api/adaptor-framework/pixel-buffer.h>
-#include <dali-toolkit/internal/visuals/visual-url.h>
-#include <dali-toolkit/devel-api/image-loader/async-image-loader-devel.h>
-#include <dali/integration-api/adaptor-framework/log-factory-interface.h>
-
-namespace Dali
-{
-
-namespace Toolkit
-{
-
-namespace Internal
-{
-
-/**
- * The task of loading and packing an image into the atlas.
- */
-struct LoadingTask
-{
- /**
- * Constructor.
- * @param [in] id of the task
- * @param [in] url The URL of the image file to load.
- * @param [in] size The width and height to fit the loaded image to, 0.0 means whole image
- * @param [in] fittingMode The method used to fit the shape of the image before loading to the shape defined by the size parameter.
- * @param [in] samplingMode The filtering method used when sampling pixels from the input image while fitting it to desired size.
- * @param [in] orientationCorrection Reorient the image to respect any orientation metadata in its header.
- * @param [in] preMultiplyOnLoad ON if the image's color should be multiplied by it's alpha. Set to OFF if there is no alpha or if the image need to be applied alpha mask.
- */
- LoadingTask( uint32_t id,
- const VisualUrl& url,
- ImageDimensions dimensions,
- FittingMode::Type fittingMode,
- SamplingMode::Type samplingMode,
- bool orientationCorrection,
- DevelAsyncImageLoader::PreMultiplyOnLoad preMultiplyOnLoad);
-
- /**
- * Constructor.
- * @param [in] id of the task
- * @param [in] pixelBuffer of the to be masked image
- * @param [in] maskPixelBuffer of the mask image
- * @param [in] contentScale The factor to scale the content
- * @param [in] cropToMask Whether to crop the content to the mask size
- * @param [in] preMultiplyOnLoad ON if the image's color should be multiplied by it's alpha. Set to OFF if there is no alpha.
- */
- LoadingTask( uint32_t id,
- Devel::PixelBuffer pixelBuffer,
- Devel::PixelBuffer maskPixelBuffer,
- float contentScale,
- bool cropToMask,
- DevelAsyncImageLoader::PreMultiplyOnLoad preMultiplyOnLoad);
-
- /**
- * Load the image
- */
- void Load();
-
- /**
- * Apply mask
- */
- void ApplyMask();
-
- /**
- * Multiply alpha
- */
- void MultiplyAlpha();
-
-private:
-
- // Undefined
- LoadingTask( const LoadingTask& queue );
-
- // Undefined
- LoadingTask& operator=( const LoadingTask& queue );
-
-public:
-
- Devel::PixelBuffer pixelBuffer; ///< pixelBuffer handle after successful load
- ///< or pixelBuffer to be masked image in the mask task
- VisualUrl url; ///< url of the image to load
- uint32_t id; ///< The unique id associated with this task.
- ImageDimensions dimensions; ///< dimensions to load
- FittingMode::Type fittingMode; ///< fitting options
- SamplingMode::Type samplingMode; ///< sampling options
- bool orientationCorrection:1; ///< if orientation correction is needed
- DevelAsyncImageLoader::PreMultiplyOnLoad preMultiplyOnLoad; //< if the image's color should be multiplied by it's alpha
-
- bool isMaskTask; ///< whether this task is for mask or not
- Devel::PixelBuffer maskPixelBuffer; ///< pixelBuffer of mask image
- float contentScale; ///< The factor to scale the content
- bool cropToMask; ///< Whether to crop the content to the mask size
-};
-
-
-/**
- * The worker thread for image loading.
- */
-class ImageLoadThread : public Thread
-{
-public:
-
- /**
- * Constructor.
- *
- * @param[in] mTrigger The trigger to wake up the main thread.
- */
- ImageLoadThread( EventThreadCallback* mTrigger );
-
- /**
- * Destructor.
- */
- virtual ~ImageLoadThread();
-
- /**
- * Add a task in to the loading queue
- *
- * @param[in] task The task added to the queue.
- *
- * @note This class takes ownership of the task object
- */
- void AddTask( LoadingTask* task );
-
- /**
- * Pop the next task out from the completed queue.
- *
- * @return The next task to be processed.
- */
- LoadingTask* NextCompletedTask();
-
- /**
- * Remove the loading task from the waiting queue.
- */
- bool CancelTask( uint32_t loadingTaskId );
-
- /**
- * Remove all the loading tasks in the waiting queue.
- */
- void CancelAll();
-
-private:
-
- /**
- * Pop the next loading task out from the queue to process.
- *
- * @return The next task to be processed.
- */
- LoadingTask* NextTaskToProcess();
-
- /**
- * Add a task in to the loading queue
- *
- * @param[in] task The task added to the queue.
- */
- void AddCompletedTask( LoadingTask* task );
-
-protected:
-
- /**
- * The entry function of the worker thread.
- * It fetches loading task from the loadQueue, loads the image and adds to the completeQueue.
- */
- virtual void Run();
-
-private:
-
- // Undefined
- ImageLoadThread( const ImageLoadThread& thread );
-
- // Undefined
- ImageLoadThread& operator=( const ImageLoadThread& thread );
-
-private:
-
- Vector< LoadingTask* > mLoadQueue; ///<The task queue with images for loading.
- Vector< LoadingTask* > mCompleteQueue; ///<The task queue with images loaded.
- EventThreadCallback* mTrigger;
- const Dali::LogFactoryInterface& mLogFactory; ///< The log factory
-
- ConditionalWait mConditionalWait;
- Dali::Mutex mMutex;
-};
-
-} // namespace Internal
-
-} // namespace Toolkit
-
-} // namespace Dali
-
-#endif // DALI_TOOLKIT_IMAGE_LOAD_THREAD_H
projects / platform / core / uifw / dali-toolkit.git / blobdiff