/** @file
 * Header file for GEL region handling API.
 *
 * @author mandy.wu 2010/03/30 (GEL_CreateRegionEx only on OSD layer2)
 * @version 0.1
 */
#ifndef __GEL_REGION__
#define __GEL_REGION__

#include "gui_eng/stddefs.h"
#include "gui_eng/gui_engine.h"

#define GUI_MAX_REGIONS (12) // SUPPORT_OSD_REGION + SUPPORT_G2D_REGION in osd8600_hw.h

/* Global variables for region handling */
extern const UINT8 gRegions;
extern RegionParams_t gRegionDetails[GUI_MAX_REGIONS];

/**
 * Get current panel width and height.
 *
 * @param pwWidth	The width of OSD plane.
 * @param pwHeight   	The height of OSD plane.
 */
GUIResult_e GEL_GetOsdPlaneSize (UINT16 *pwWidth, UINT16 *pwHeight)__attribute__ ((warn_unused_result));

/**
 * Resize the UI from the original size to the desired size.
 *
 * @param wWidth		The original width of UI.
 * @param wHeight   	The original height of UI.
 * @param wTargetWidth	The desired width of UI to be scaled.
 * @param wTargetHeight	The desired height of UI to be scaled.
 * @return GUI_SUCCESS if succeed, error code otherwise.
 */
GUIResult_e GEL_ResizeUI(OSD_Layer_t osd_layer, UINT16 wWidth, UINT16 wHeight, UINT16 wTargetWidth,
                         UINT16 wTargetHeight) __attribute__ ((warn_unused_result));

/**
 * Get the region index from a window control.
 *
 * @param pWinCtrl		Pointer to WinControl_t of a menu/popup.
 * @param pRegionIndex  Return the region index of a win_control.
 * @return The region index belongs to a menu.
 */
GUIResult_e GEL_GetRegionIndex(WinControl_t *pWinCtrl, UINT32 *pRegionIndex)__attribute__ ((warn_unused_result));

/**
 * Create a region with the specific region index from UI resources.
 *
 * @param pRegionInfo   Region information
 * @param dRegionIndex  Region index
 * @param pRegionHandle Returned region handle.
 * @return GUI_SUCCESS if succeed, error code otherwise.
 */
GUIResult_e GEL_CreateRegion (RegionInfo_t *pRegionInfo, UINT32 dRegionIndex,
	RegionHandle_t* pRegionHandle)__attribute__ ((warn_unused_result));

/**
 * Create a region on OSD layer1/2. Only support LUT8/ARGB4444/ARGB format regions.
 *
 * @param eLayer		The region layer to be created.
 * @param eFormat		Format of the region to be created.
 * @param wWidth		Width(pixel) of the region to be created.
 * @param wHeight		Height(pixel) of the region to be created.
 * @param pRegionHandle	The returned region handle.
 * @return GUI_SUCCESS if succeed, error code otherwise.
 */
GUIResult_e GEL_CreateRegionEx(OSD_Layer_t eLayer, GEL_PixelFormat_e eFormat,
                               UINT16 wWidth, UINT16 wHeight, RegionHandle_t * pRegionHandle)
    __attribute__ ((warn_unused_result));

/**
 * Destroy a created region by its region handle.
 *
 * @param sdRegionHandle  The region handle index of a region to be closed.
 * @return GUI_SUCCESS if succeed, error code otherwise.
 */
GUIResult_e GEL_CloseRegion (RegionHandle_t sdRegionHandle)__attribute__ ((warn_unused_result));


/**
 * Get the region_handle from a region_index to a region_info array.
 *
 * @param pRegionInfo   Region information
 * @param dRegionIndex  Region index
 * @param pRegionHandle Returned region handle.
 * @return GUI_SUCCESS if succeed, error code otherwise.
 */
GUIResult_e GEL_GetRegionHandle(RegionInfo_t *pRegionInfo, INT32 sdRegionIndex,
	RegionHandle_t *pRegionHandle)__attribute__ ((warn_unused_result));

/**
 * Move a region to the given x and y position.
 *
 * @param sdRegionHandle  The region handle index of a region to be moved.
 * @param swXPos          x coordinate to be moved to.
 * @param swYPos          y coordinate to be moved to.
 * @return GUI_SUCCESS if succeed, error code otherwise.
 */
GUIResult_e GEL_MoveRegion (RegionHandle_t sdRegionHandle, INT16 swXPos, INT16 swYPos)__attribute__ ((warn_unused_result));

/**
 * Change the region's palette to the given palette.
 *
 * @param sdRegionHandle	The region handle index of a region to be moved.
 * @param pPal				The pointer to a palette which is generated by uiDesign tool.
 * @return GUI_SUCCESS if succeed, error code otherwise.
 */
GUIResult_e GEL_SetRegionPal(RegionHandle_t sdRegionHandle, const PALENTRY *pPal)__attribute__ ((warn_unused_result));


/**
 * Set a transparency value to an OSD region.
 *
 * @param sdRegionHandle	The region handle index of an OSD region.
 * @param bTransValue		The transparency value to be set to the OSD region.
 * @param bEnable			Wether to enable the OSD region blend mode.
 * @return GUI_SUCCESS if succeed, error code otherwise.
 */
GUIResult_e GEL_SetRegionTransparency(RegionHandle_t sdRegionHandle, UINT8 bTransValue,
	BOOLEAN bEnable)__attribute__ ((warn_unused_result));


/**
 * Get the position and width/height of a region related to an OSD/G2D plane.
 *
 * @param sdRegionHandle	The region handle index of an OSD region.
 * @param pstRect			Return the position and width/height coordinate of the region.
 * @return GUI_SUCCESS if succeed, error code otherwise.
 */
GUIResult_e GEL_GetRegionArea(RegionHandle_t sdRegionHandle, PRECT pstRect)__attribute__ ((warn_unused_result));

#endif /* __GEL_REGION__ */