/** @file
 * Header file for GEL structure definition. 
 *
 * @author mandy.wu 2010/03/31
 * @version 0.1
 */
#ifndef __GEL_STRUCT__
#define __GEL_STRUCT__

#include "gui_eng/stddefs.h"

typedef INT32 GEL_RgnHandle_t;
typedef UINT8 GEL_AAEntry_t;

/** Structure of color with RGBA. Color index used by LUT8/LUT4 should be filled in 'a' member. */
typedef struct {
	UINT8 r;
	UINT8 g;
	UINT8 b;
	UINT8 a;
} GEL_Color_t;

/** Types of pixel format. */
typedef enum {
	GEL_PF_RGB16,     /**< 16 bit RGB (2 byte, red 5\@11, green 6\@5, blue 5\@0) */
	GEL_PF_RGB32,     /**< 24 bit RGB (4 byte, nothing\@24, red 8\@16, green 8\@8, blue 8\@0) */
	GEL_PF_ARGB8565,     /**< 24 bit RGB (4 byte, nothing\@24, red 8\@16, green 8\@8, blue 8\@0) */
	GEL_PF_ARGB4444,  /**< 16 bit ARGB (2 byte, alpha 4\@12, red 4\@8, green 4\@4, blue 4\@0) */
	GEL_PF_ARGB1555,  /**< 16 bit ARGB (2 byte, alpha 1\@15, red 5\@10, green 5\@5, blue 5\@0) */
	GEL_PF_ARGB,      /**< 32 bit ARGB (4 byte, alpha 8\@24, red 8\@16, green 8\@8, blue 8\@0) */
	GEL_PF_LUT8,      /**< 8 bit LUT (8 bit color and alpha lookup from a palette) */
	GEL_PF_LUT4,      /**< 4 bit LUT (4 bit color and alpha lookup from a palette) */
	GEL_PF_LAST
} GEL_PixelFormat_e;

/** Structure of an entry of palette. */
typedef struct {
	UINT8 a;
	UINT8 r;
	UINT8 g;
	UINT8 b;	
} GEL_Palette_t;

/** Structure of bitmap handle. */
typedef struct {
	void				*pAddr;		/**< pointer to the bitmap data */
	GEL_Palette_t		*pPal;		/**< pointer to a palette for the bmp */
	UINT16				wWidth;		/**< bmp width in pixels  */
	UINT16				wHeight;	/**< bmp height in pixels */
	GEL_PixelFormat_e	eFormat;	/**< pixel format of the bmp, see GEL_PixelFormat_e */
	UINT16				wPalFirst;	/**< the start index of a palette to reference by the bitmap */
	UINT16				wColCount;	/**< the color count to describe a bitmap  */
} GEL_BitmapHandle_t; 

/** Layers support for GUI engine. */
typedef enum {
    GEL_ICON_ROTATE_NONE = 0x0,
    GEL_ICON_ROTATE_90 = 0x1,
    GEL_ICON_ROTATE_180 = 0x2,
    GEL_ICON_ROTATE_270 = 0x4,
    GEL_ICON_MIRROR = 0x10,
    GEL_ICON_FLIP = 0x20,
} GEL_IconRotate_e;

typedef enum {
	GPU_DRAM_A = 0,
	GPU_DRAM_B = 1
} GPUDramSel_e;

#endif /* __GEL_STRUCT__ */