-#ifndef __DALI_INTEGRATION_PLATFORM_ABSTRACTION_H__
-#define __DALI_INTEGRATION_PLATFORM_ABSTRACTION_H__
+#ifndef DALI_INTEGRATION_PLATFORM_ABSTRACTION_H
+#define DALI_INTEGRATION_PLATFORM_ABSTRACTION_H
/*
- * Copyright (c) 2014 Samsung Electronics Co., Ltd.
+ * Copyright (c) 2020 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.
*/
// INTERNAL INCLUDES
+
#include <dali/integration-api/bitmap.h>
-#include <dali/integration-api/resource-cache.h>
+#include <dali/integration-api/resource-types.h>
+#include <dali/public-api/common/dali-vector.h>
+#include <dali/public-api/images/image-operations.h>
+#include <dali/public-api/signals/callback.h>
namespace Dali
{
-
namespace Integration
{
-
-class Bitmap;
-class DynamicsFactory;
-
+using ResourceId = uint32_t;
+using ResourcePointer = IntrusivePtr<Dali::RefObject>;
/**
* PlatformAbstraction is an abstract interface, used by Dali to access platform specific services.
class PlatformAbstraction
{
public:
-
- virtual ~PlatformAbstraction() {}
-
- // Dali Lifecycle
-
- /**
- * Get the monotonic time since an unspecified reference point.
- * This is used by Dali to calculate time intervals during animations; the interval is
- * recalculated when Dali is resumed with Dali::Integration::Core::Resume().
- * Multi-threading note: this method may be called from either the main or rendering thread.
- * @param[out] seconds The time in seconds since the reference point.
- * @param[out] microSeconds The remainder in microseconds.
- */
- virtual void GetTimeMicroseconds(unsigned int& seconds, unsigned int& microSeconds) = 0;
-
- /**
- * Tell the platform abstraction that Dali is ready to pause, such as when the
- * application enters a background state.
- * Allows background threads to pause their work until Resume() is called.
- * This is a good time to release recreatable data such as memory caches
- * to cooperate with other apps and reduce the chance of this one being
- * force-killed in a low memory situation.
- */
- virtual void Suspend() {} ///!ToDo: Make pure virtual once dali-adaptor patch is in place = 0;
-
- /**
- * Tell the platform abstraction that Dali is resuming from a pause, such as
- * when it has transitioned from a background state to a foreground one.
- * It is time to wake up sleeping background threads and recreate memory
- * caches and other temporary data.
- */
- virtual void Resume() {} ///!ToDo: Make pure virtual once dali-adaptor patch is in place = 0;
-
// Resource Loading
/**
- * Determine the size of an image the resource loaders will provide when given the same
- * image attributes.
+ * @brief Determine the size of an image the resource loaders will provide when
+ * given the same image loading parameters.
+ *
* This is a synchronous request.
* This function is used to determine the size of an image before it has loaded.
* @param[in] filename name of the image.
- * @param[in] attributes The attributes used to load the image
- * @param[out] closestSize Size of the image that will be loaded.
- */
- virtual void GetClosestImageSize( const std::string& filename,
- const ImageAttributes& attributes,
- Vector2& closestSize ) = 0;
-
- /**
- * Determine the size of an image the resource loaders will provide when given the same
- * image attributes.
+ * @param[in] size The requested size for the image.
+ * @param[in] fittingMode The method to use to map the source image to the desired
+ * dimensions.
+ * @param[in] samplingMode The image filter to use if the image needs to be
+ * downsampled to the requested size.
+ * @param[in] orientationCorrection Whether to use image metadata to rotate or
+ * flip the image, e.g., from portrait to landscape.
+ * @return dimensions that image will have if it is loaded with given parameters.
+ */
+ virtual ImageDimensions GetClosestImageSize(const std::string& filename,
+ ImageDimensions size = ImageDimensions(0, 0),
+ FittingMode::Type fittingMode = FittingMode::SHRINK_TO_FIT,
+ SamplingMode::Type samplingMode = SamplingMode::BOX,
+ bool orientationCorrection = true) = 0;
+
+ /**
+ * @brief Determine the size of an image the resource loaders will provide when
+ * given the same image loading parameters.
+ *
* This is a synchronous request.
* This function is used to determine the size of an image before it has loaded.
- * @param[in] resourceBuffer A pointer to an encoded image buffer
- * @param[in] attributes The attributes used to load the image
- * @param[out] closestSize Size of the image that will be loaded.
- */
- virtual void GetClosestImageSize( ResourcePointer resourceBuffer,
- const ImageAttributes& attributes,
- Vector2& closestSize ) = 0;
-
- /**
- * Request a resource from the native filesystem. This is an asynchronous request.
- * After this method returns, FillResourceCache() will be called to retrieve the result(s) of the
- * resource loading operation. Loading resources in separate worker thread is recommended.
- * Multi-threading note: this method will be called from the main thread only i.e. not
- * from within the Core::Render() method.
- * @param[in] request A unique resource request. This is not guaranteed to survive after LoadResource
- * returns; the loading process should take a copy.
- */
- virtual void LoadResource(const ResourceRequest& request) = 0;
-
- /**
- * Request a resource from the native filesystem. This is a synchronous request, i.e.
- * it will block the main loop whilst executing. It should therefore be used sparingly.
+ * @param[in] filename name of the image.
+ * @param[in] size The requested size for the image.
+ * @param[in] fittingMode The method to use to map the source image to the desired
+ * dimensions.
+ * @param[in] samplingMode The image filter to use if the image needs to be
+ * downsampled to the requested size.
+ * @param[in] orientationCorrection Whether to use image metadata to rotate or
+ * flip the image, e.g., from portrait to landscape.
+ * @return dimensions that image will have if it is loaded with given parameters.
+ */
+ virtual ImageDimensions GetClosestImageSize(ResourcePointer resourceBuffer,
+ ImageDimensions size = ImageDimensions(0, 0),
+ FittingMode::Type fittingMode = FittingMode::SHRINK_TO_FIT,
+ SamplingMode::Type samplingMode = SamplingMode::BOX,
+ bool orientationCorrection = true) = 0;
+
+ /**
+ * Request an image from the native filesystem. This is a synchronous request, i.e.
+ * it will block the main loop whilst executing.
*
* Multi-threading note: this method will be called from the main thread only i.e. not
* from within the Core::Render() method.
* @param[in] resourcePath The path to the resource
* @return A pointer to a ref-counted resource
*/
- virtual ResourcePointer LoadResourceSynchronously( const ResourceType& resourceType, const std::string& resourcePath ) = 0;
-
- /**
- * Request that a resource be saved to the native filesystem.
- * This is an asynchronous request.
- */
- virtual void SaveResource(const ResourceRequest& request) = 0;
- /**
- * Cancel an ongoing LoadResource() request.
- * Multi-threading note: this method will be called from the main thread only i.e. not
- * from within the Core::Render() method.
- * @param[in] id The ID of the resource to cancel.
- * @param[in] typeId The ID type of the resource to cancel.
- */
- virtual void CancelLoad(ResourceId id, ResourceTypeId typeId) = 0;
+ virtual ResourcePointer LoadImageSynchronously(const BitmapResourceType& resourceType, const std::string& resourcePath) = 0;
/**
- * Query whether any asynchronous LoadResource() requests are ongoing.
- * Multi-threading note: this method may be called from either the main or rendering thread.
- * @return True if resources are being loaded.
- */
- virtual bool IsLoading() = 0;
-
- /**
- * Retrieve newly loaded resources.
- * If no resources have finished loading, then this method returns immediately.
- * Multi-threading note: this method will be called from the update thread, from within
- * the UpdateManager::Update() method.
- * @param[in] cache The resource cache to fill.
- */
- virtual void GetResources(ResourceCache& cache) = 0;
-
- /**
- * Waits for the asynchronous loader threads (if any) to finish.
- * This will be only be called before Core destruction; no resource loading requests will be
- * made following this method.
- */
- virtual void JoinLoaderThreads() = 0;
-
- // Font Queries
-
- /**
- * Called by Dali to retrieve the default font family & style for the platform.
- * Multi-threading note: this method will be called from the main thread only i.e. not
- * from within the Core::Render() method.
- * @param[out] The default font family.
- * @param[out] The default font style.
- */
- virtual void GetDefaultFontDescription( std::string& family, std::string& style ) const = 0;
-
- /**
- * Called by Dali to retrieve the default font size for the platform.
- * This is an accessibility size, which is mapped to a UI Control specific point-size in stylesheets.
- * For example if zero the smallest size, this could potentially map to TextLabel point-size 8.
- * Multi-threading note: this method will be called from the main thread only i.e. not
- * from within the Core::Render() method.
- * @return The default font size.
+ * Decode a buffer of data synchronously.
+ * @param[in] resourceType The type of resource to load
+ * @param[in] buffer The decoded data
+ * @param[in] bufferSize The size of the buffer used by the decoded data.
+ *
+ * @return A pointer to the decoded buffer.
*/
- virtual int GetDefaultFontSize() const = 0;
+ virtual BitmapPtr DecodeBuffer(const BitmapResourceType& resourceType, uint8_t* buffer, size_t bufferSize) = 0;
/**
- * Sets horizontal and vertical pixels per inch value that is used by the display
- * @param[in] dpiHorizontal horizontal dpi value
- * @param[in] dpiVertical vertical dpi value
+ * Load a shader binary file into a buffer
+ * @param[in] filename The shader binary filename to load
+ * @param[out] buffer A buffer to receive the file.
+ * @result true if the file is loaded.
*/
- virtual void SetDpi (unsigned int dpiHorizontal, unsigned int dpiVertical) = 0;
+ virtual bool LoadShaderBinaryFile(const std::string& filename, Dali::Vector<uint8_t>& buffer) const = 0;
/**
- * Load a file into a buffer
- * @param[in] filename The filename to load
- * @param[out] buffer A buffer to receive the file.
- * @result true if the file is loaded.
+ * Save a shader binary file to the resource file system.
+ * @param[in] filename The shader binary filename to save to.
+ * @param[in] buffer A buffer to write the file from.
+ * @param[in] numbytes Size of the buffer.
+ * @result true if the file is saved, else false.
*/
- virtual bool LoadFile( const std::string& filename, std::vector< unsigned char >& buffer ) const = 0;
+ virtual bool SaveShaderBinaryFile(const std::string& filename, const uint8_t* buffer, uint32_t numBytes) const = 0;
/**
- * Load a file into a buffer
- * @param[in] filename The filename to save
- * @param[out] buffer A buffer containing some data
- * The buffer is implemeneted with a std::vector. The size() member specifies the buffer length.
- * @result true if the file is saved.
+ * Sets a callback to occur in the future
+ * @param[in] milliseconds number of milliseconds to wait until executing the callback
+ * @param[in] callback function to call when the timer expires
+ * @result a timer reference ID, to be used for cancelling the timer
*/
- virtual bool SaveFile(const std::string& filename, std::vector< unsigned char >& buffer) const = 0;
+ virtual uint32_t StartTimer(uint32_t milliseconds, CallbackBase* callback) = 0;
/**
- * Get a pointer to the DynamicsFactory.
+ * Cancels a running timer
+ * @param[in] timerId the ID reference returned when the timer was started
*/
- virtual DynamicsFactory* GetDynamicsFactory() = 0;
+ virtual void CancelTimer(uint32_t timerId) = 0;
+protected:
/**
- * Load a shader binary file into a buffer
- * @param[in] filename The shader binary filename to load
- * @param[out] buffer A buffer to receive the file.
- * @result true if the file is loaded.
+ * Virtual destructor.
*/
- virtual bool LoadShaderBinFile( const std::string& filename, std::vector< unsigned char >& buffer ) const = 0;
+ virtual ~PlatformAbstraction() = default;
}; // class PlatformAbstraction
} // namespace Dali
-#endif // __DALI_INTEGRATION_PLATFORM_ABSTRACTION_H__
+#endif // DALI_INTEGRATION_PLATFORM_ABSTRACTION_H
projects / platform / core / uifw / dali-core.git / blobdiff