/** @file
 * Header file for GEL direct drawing API. 
 *
 * @author mandy.wu 2010/03/24
 * @version 0.1
 */
#ifndef __GEL_DRAWING__
#define __GEL_DRAWING__

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

/**
 * Get the handle of bitmap of static resource via icon ID.
 * 
 * @param stRgnHandle		The target region handle to which desired bitmap belongs.
 * @param swIconId			Icon ID of desired bitmap.
 * @param pstBitmapHandle	Returned bitmap handle.
 * @return GUI_SUCCESS if succeed, error codes otherwise.
 */
GUIResult_e GEL_GetStaticBmpHandle(GEL_RgnHandle_t stRgnHandle, 
	INT16 swIconId, GEL_BitmapHandle_t *pstBitmapHandle)__attribute__ ((warn_unused_result));

/**
 * Get the bitmap handle.  
 *
 * @param pAddr				The pointer to the bitmap data. 
 * @param eFormat			The pixel format of the bitmap. 
 * @param wWidth			The width of the bitamp. 
 * @param wHeight			The height of the bitamp. 
 * @param pstBitmapHandle	Return the bitmap handle. 
 * @return GUI_SUCCESS if succeed, error codes otherwise.
 */
GUIResult_e GEL_GetBitmapHandle(void *pAddr, GEL_PixelFormat_e eFormat, UINT16 wWidth, 
	UINT16 wHeight, GEL_BitmapHandle_t *pstBitmapHandle)__attribute__ ((warn_unused_result));

/**
 * Set a palette to a bitmap handle. 
 * The source palette will be applied if the bitmap is 16/32 bits format.  
 *
 * @param pstBitmapHandle	The pointer to a bitmap handle. 
 * @param pstPal			The pointer to a 256 color palette. 
 * @param wPalFirst			The first pal index of the bitmap if the bitmap is 4bpp format(16 colors).  
 * @return GUI_SUCCESS if succeed, error codes otherwise.
 */
GUIResult_e GEL_SetBitmapPal(GEL_BitmapHandle_t *pstBitmapHandle, GEL_Palette_t *pstPal, 
	UINT16 wPalFirst)__attribute__ ((warn_unused_result));

/**
 * Draw string to OSD region.
 *
 * @param stRgnHandle		The target region handle.
 * @param pStr				The string data. 
 * @param eStrType			The encoded type of the string.
 * @param pstTextInfo		The text rendering info of the string. 
 * @param pstVFInfo			The vector font related settings.
 * @param pstDstRect		The area of the OSD region to be rendered to. 
 * @return GUI_SUCCESS if succeed, error codes otherwise. 
 */
GUIResult_e GEL_DrawString(GEL_RgnHandle_t stRgnHandle, UINT8 *pStr, GEL_DynStrType_e eStrType, 
	GEL_TextInfo_t *pstTextInfo, GEL_VFInfo_t *pstVFInfo, PRECT pstDstRect, INT32 *pBlockId)__attribute__ ((warn_unused_result));

/**
 * Draw a bitmap to an OSD region. 
 *
 * @param stRgnHandle		The target region handle. 
 * @param pstBitmapHandle	The source bitmap handle. 
 * @param pstSrcRect		The pointer to a rect area of the source bitmap to be blited.  
 * @param swDstX			The x coordinate of the OSD region to be rendered to. 
 * @param swDstY			The y coordinate of the OSD region to be rendered to. 
 * @return GUI_SUCCESS if succeed, error codes otherwise. 
 */ 
GUIResult_e GEL_DrawBitmap(GEL_RgnHandle_t stRgnHandle, GEL_BitmapHandle_t *pstBitmapHandle,
	PRECT pstSrcRect, INT16 swDstX, INT16 swDstY, INT32 *pBlockId)__attribute__ ((warn_unused_result));

/**
 * Draw a bitmap to an OSD region repeatly to fill with the rect area. 
 *
 * @param stRgnHandle		The target region handle. 
 * @param pstBitmapHandle	The source bitmap handle. 
 * @param pstSrcRect		The pointer to a rect area of the source bitmap to be blited.  
 * @param pstDstRect		The pointer to a rect area of the OSD region to be blited to. 
 * @return GUI_SUCCESS if succeed, error codes otherwise. 
 */ 
GUIResult_e GEL_FillBitmap(GEL_RgnHandle_t stRgnHandle, GEL_BitmapHandle_t *pstBitmapHandle,
	PRECT pstSrcRect, PRECT pstDstRect, INT32 *pBlockId)__attribute__ ((warn_unused_result));

/**
 * Fill a rect area of an OSD region with a color. 
 * If the region format is indexed mode, the "a" component of a GEL_Color_t will be regarded as an index of the region palette. 
 *
 * @param stRgnHandle		The target region handle. 
 * @param stColor			The color to be filled with the rect. 
 * @param pstDstRect		The target rect area to be filled with. 
 * @return GUI_SUCCESS if succeed, error codes otherwise. 
 */ 
GUIResult_e GEL_FillRect(GEL_RgnHandle_t stRgnHandle, GEL_Color_t stColor,
	PRECT pstDstRect, INT32 *pBlockId)__attribute__ ((warn_unused_result));


/**
 * Fill a rect area of an OSD region with a hole 
 *
 * @param stRgnHandle		The target region handle. 
 * @param pstDstRect		The target rect area to be filled with. 
 * @return GUI_SUCCESS if succeed, error codes otherwise. 
 */ 
GUIResult_e GEL_DrawHoleRectangle(GEL_RgnHandle_t stRgnHandle, PRECT pstDstRect, 
UINT16 nLineWidth, INT32 *pBlockId, INT32 isEvenAlign)__attribute__ ((warn_unused_result));


/**
 * Draw a line between two points of an OSD region.
 *
 * @param stRgnHandle		The target region handle. 
 * @param stColor			The color to be filled with the line.
 * @param swX1				The x coordinate of the start point.
 * @param swY1				The y coordinate of the start point. 
 * @param swX2				The x coordinate of the end point.
 * @param swY2				The y coordinate of the end point.
 * @param wThickness		The thickness of a line. 
 * @return GUI_SUCCESS if succeed, error codes otherwise.
 */
GUIResult_e GEL_DrawLine(GEL_RgnHandle_t stRgnHandle, GEL_Color_t stColor,
	INT16 swX1, INT16 swY1, INT16 swX2, INT16 swY2, UINT16 wThickness, INT32 *pBlockId)__attribute__ ((warn_unused_result));

//--
/**
 * Set bitmap resource information to GUI engine.
 *
 * @param pBmpInfo		The target bitmap resource set by user
 * @return GUI_SUCCESS if succeed, error codes otherwise.
 */
GUIResult_e GEL_SetBmpInfo(const IMAGEHDR *pBmpInfo)__attribute__ ((warn_unused_result));

#endif /* __GEL_DRAWING__ */