*/
// INTERNAL INCLUDES
-#include <dali/public-api/common/vector-wrapper.h>
#include <dali/public-api/images/image.h>
#include <dali/public-api/images/pixel.h>
#include <dali/public-api/math/rect.h>
namespace Dali
{
+/**
+ * @addtogroup dali_core_images
+ * @{
+ */
namespace Internal DALI_INTERNAL
{
class BufferImage;
}
-typedef unsigned char PixelBuffer; ///< pixel data buffer
-typedef Rect<unsigned int> RectArea; ///< rectangular area (x,y,w,h)
+typedef unsigned char PixelBuffer; ///< pixel data buffer @SINCE_1_0.0
+typedef Rect<unsigned int> RectArea; ///< rectangular area (x,y,w,h) @SINCE_1_0.0
/**
- * @brief BufferImage represents an image resource that can be added to ImageActors.
- * Its pixel buffer data is provided by the application developer.
- *
- * Care should be taken with pixel data allocated by the application,
- * as the data is copied to GL both when the image is added to the
- * stage and after a call to Update(). In both of these cases, a
- * SignalUploaded will be sent to the application confirming that the
- * operation has completed.
+ * @brief BufferImage represents an image resource as a pixel data buffer.
*
- * The application can free the pixel data after receiving a
- * SignalUploaded.
- *
- * Similarly, once the image is on stage (i.e. it's being used by an
- * ImageActor that is on stage), the application should only write to
- * the buffer after receiving a SignalUploaded, then call Update()
- * once the write is finished. This avoids the pixel data being changed
- * whilst it's being copied to GL. Writing to the buffer without waiting
- * for the signal will likely result in visible tearing.
+ * Its pixel buffer data is provided by the application developer.
*
* If the pixel format of the pixel buffer contains an alpha channel,
* then the image is considered to be have transparent pixels without
* regard for the actual content of the channel, and will be blended.
*
- * If the image is opaque and blending is not required, then the user
- * should call ImageActor::SetUseImageAlpha(false) on the containing actor.
+ * @SINCE_1_0.0
*/
class DALI_IMPORT_API BufferImage : public Image
{
* @brief Constructor which creates an uninitialized BufferImage object.
*
* Use BufferImage::New(...) to create an initialised object.
+ * @SINCE_1_0.0
*/
BufferImage();
* Dali has ownership of the buffer.
* For better performance and portability use power of two dimensions.
* The maximum size of the image is limited by GL_MAX_TEXTURE_SIZE.
- * @note: default resource management policies are Immediate and Never
- *
+ * @SINCE_1_0.0
+ * @param [in] width Image width in pixels
+ * @param [in] height Image height in pixels
+ * @param [in] pixelformat The pixel format (rgba 32 bit by default)
+ * @return A handle to a new instance of BufferImage
* @pre width & height are greater than zero
- * @param [in] width image width in pixels
- * @param [in] height image height in pixels
- * @param [in] pixelformat the pixel format (rgba 32 bit by default)
- * @return a handle to a new instance of BufferImage
+ * @note default resource management policies are Immediate and Never
+ *
*/
static BufferImage New(unsigned int width,
unsigned int height,
Pixel::Format pixelformat=Pixel::RGBA8888);
/**
+ * @DEPRECATED_1_1.3. Use New( unsigned int width, unsigned int height ) instead.
+ *
* @brief Create a new BufferImage.
*
* Also a pixel buffer for image data is allocated.
* For better performance and portability use power of two dimensions.
* The maximum size of the image is limited by GL_MAX_TEXTURE_SIZE.
*
- * @pre width & height are greater than zero
+ * @SINCE_1_0.0
+ * @remarks ReleasePolicy is an experimental feature and might not be supported in the next release.
+ * We do recommend not to use this method.
+ * Please refer the Remarks of ReleasePolicy for more information.
* @param [in] width Image width in pixels
* @param [in] height Image height in pixels
* @param [in] pixelFormat The pixel format
* @param [in] releasePolicy Optionally release memory when image is not visible on screen.
- * @return a handle to a new instance of BufferImage
+ * @return A handle to a new instance of BufferImage
+ * @pre width & height are greater than zero
*/
static BufferImage New(unsigned int width,
unsigned int height,
*
* The application holds ownership of the buffer. It must not
* destroy the PixelBuffer on a staged image if it has called
- * Update() and hasn't received a SignalUploaded, or if it has just
- * added it to the stage and has not received a SignalUploaded.
+ * Update() and hasn't received a Image::UploadedSignal, or if it has just
+ * added it to the stage and has not received a Image::UploadedSignal.
*
* For better performance and portability use power of two dimensions.
* The maximum size of the image is limited by GL_MAX_TEXTURE_SIZE.
*
+ * @SINCE_1_0.0
+ * @param [in] pixelBuffer Pixel buffer. has to be allocated by application.
+ * @param [in] width Image width in pixels
+ * @param [in] height Image height in pixels
+ * @param [in] pixelFormat The pixel format (rgba 32 bit by default)
+ * @param [in] stride The internal stride of the pixelbuffer in pixels
+ * @return A handle to a new instance of BufferImage
* @pre width & height are greater than zero
- * @param [in] pixelBuffer pixel buffer. has to be allocated by application.
- * @param [in] width image width in pixels
- * @param [in] height image height in pixels
- * @param [in] pixelFormat the pixel format (rgba 32 bit by default)
- * @param [in] stride the internal stride of the pixelbuffer in pixels
- * @return a handle to a new instance of BufferImage
*/
static BufferImage New(PixelBuffer* pixelBuffer,
unsigned int width,
unsigned int stride=0);
/**
+ * @DEPRECATED_1_1.3. Use New( PixelBuffer* pixelBuffer, unsigned int width, unsigned int height ) instead.
+ *
* @brief Create a new BufferImage, which uses an external data source.
*
* The PixelBuffer has to be allocated by application.
*
* The application holds ownership of the buffer. It must not
* destroy the PixelBuffer on a staged image if it has called
- * Update() and hasn't received a SignalUploaded, or if it has just
- * added it to the stage and has not received a SignalUploaded.
+ * Update() and hasn't received a Image::UploadedSignal, or if it has just
+ * added it to the stage and has not received a Image::UploadedSignal.
*
* For better performance and portability use power of two dimensions.
* The maximum size of the image is limited by GL_MAX_TEXTURE_SIZE.
*
- * @note in case releasePolicy is "Unused", application has to call
+ * @SINCE_1_0.0
+ * @remarks ReleasePolicy is an experimental feature and might not be supported in the next release.
+ * We do recommend not to use this method.
+ * Please refer the Remarks of ReleasePolicy for more information.
+ * @param [in] pixelBuffer Pixel buffer. has to be allocated by application.
+ * @param [in] width Image width in pixels
+ * @param [in] height Image height in pixels
+ * @param [in] pixelFormat The pixel format
+ * @param [in] stride The internal stride of the pixelbuffer in pixels
+ * @param [in] releasePolicy Optionally relase memory when image is not visible on screen.
+ * @return A handle to a new instance of BufferImage
+ * @pre width & height are greater than zero
+ * @note in case releasePolicy is Image::UNUSED, application has to call
* BufferImage::Update() whenever image is re-added to the stage
*
- * @pre width & height are greater than zero
- * @param [in] pixelBuffer pixel buffer. has to be allocated by application.
- * @param [in] width image width in pixels
- * @param [in] height image height in pixels
- * @param [in] pixelFormat the pixel format
- * @param [in] stride the internal stride of the pixelbuffer in pixels
- * @param [in] releasePolicy optionally relase memory when image is not visible on screen.
- * @return a handle to a new instance of BufferImage
*/
static BufferImage New(PixelBuffer* pixelBuffer,
unsigned int width,
ReleasePolicy releasePolicy);
/**
- * @brief Downcast an Object handle to BufferImage.
+ * @brief Downcast a handle to BufferImage handle.
*
* If handle points to a BufferImage the downcast produces valid
* handle. If not the returned handle is left uninitialized.
*
- * @param[in] handle to An object
- * @return handle to a BufferImage or an uninitialized handle
+ * @SINCE_1_0.0
+ * @param[in] handle Handle to an object
+ * @return Handle to a BufferImage or an uninitialized handle
*/
static BufferImage DownCast( BaseHandle handle );
* @brief Destructor
*
* This is non-virtual since derived Handle types must not contain data or virtual methods.
+ * @SINCE_1_0.0
*/
~BufferImage();
/**
* @brief This copy constructor is required for (smart) pointer semantics.
*
+ * @SINCE_1_0.0
* @param [in] handle A reference to the copied handle
*/
BufferImage(const BufferImage& handle);
/**
* @brief This assignment operator is required for (smart) pointer semantics.
*
- * @param [in] rhs A reference to the copied handle
+ * @SINCE_1_0.0
+ * @param [in] rhs A reference to the copied handle
* @return A reference to this
*/
BufferImage& operator=(const BufferImage& rhs);
* @brief White pixel as image data.
*
* Can be used to create solid color actors.
+ * @SINCE_1_0.0
* @return 1 white pixel with 32 bit colordepth
*/
static const BufferImage WHITE();
*
* Whilst the image is on stage, after writing to the buffer the
* application should call Update() and wait for the
- * SignalUploaded() method before writing again.
+ * Image::UploadedSignal() method before writing again.
*
- * @return the pixel buffer
+ * @SINCE_1_0.0
+ * @return The pixel buffer
*/
PixelBuffer* GetBuffer();
/**
* @brief Returns buffer size in bytes.
*
- * @return the buffer size in bytes
+ * @SINCE_1_0.0
+ * @return The buffer size in bytes
*/
unsigned int GetBufferSize() const;
/**
* @brief Returns buffer stride (in bytes).
*
- * @return the buffer stride
+ * @SINCE_1_0.0
+ * @return The buffer stride
*/
unsigned int GetBufferStride() const;
/**
* @brief Returns the pixel format of the contained buffer
*
- * @return the pixel format
+ * @SINCE_1_0.0
+ * @return The pixel format
*/
Pixel::Format GetPixelFormat() const;
/**
* @brief Inform Dali that the contents of the buffer have changed.
*
- * SignalUploaded will be sent in response if the image is on stage
+ * Image::UploadedSignal will be sent in response if the image is on stage
* and the image data has been successfully copied to graphics
* memory. To avoid visual tearing, the application should wait for
- * the SignalUploaded before modifying the data.
+ * the Image::UploadedSignal before modifying the data.
*
* The application must not destroy an external PixelBuffer on a staged
- * image after calling this method until the SignalUploaded has been
+ * image after calling this method until the Image::UploadedSignal has been
* successfully received.
*
- * @note: BufferImage::Update might not work with BGR/BGRA formats!
- * @note: Some GPUs may not support Non power of two buffer updates (for
+ * @SINCE_1_0.0
+ * @note BufferImage::Update might not work with BGR/BGRA formats!
+ * @note Some GPUs may not support Non power of two buffer updates (for
* example C110/SGX540)
*/
void Update();
/**
* @copydoc Update()
- * @param [in] updateArea area that has changed in buffer
+ * @param [in] updateArea Area that has changed in buffer
*/
void Update( RectArea updateArea );
* is responsible for freeing it.
*
* The application must not destroy an external PixelBuffer on a staged image
- * if it has called Update() and hasn't received a SignalUploaded.
+ * if it has called Update() and hasn't received a Image::UploadedSignal.
*
+ * @SINCE_1_0.0
* @return true if application owns data, false otherwise
*/
bool IsDataExternal() const;
explicit DALI_INTERNAL BufferImage(Internal::BufferImage*);
};
+/**
+ * @}
+ */
} // namespace Dali
#endif // __DALI_BUFFER_IMAGE_H__