/* ----------------------------------------------------------------------------
 *         SAM Software Package License 
 * ----------------------------------------------------------------------------
 * Copyright (c) 2011, Atmel Corporation
 *
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * - Redistributions of source code must retain the above copyright notice,
 * this list of conditions and the disclaimer below.
 *
 * Atmel's name may not be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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 * ----------------------------------------------------------------------------
 */

/** \file */

/**
 * \ingroup lib_board
 * \addtogroup lcdd_module LCD Driver
 *
 * \section Purpose
 *
 * Implement driver functions for LCD control and image display.
 * - Implement basic LCD controler configuration.
 * - Implement display functions for LCD layers.
 * - Implement simple drawing functions.
 * - Implement string display functions.
 *
 * \section lcdd_base_usage Usage
 *
 * Uses following functions for LCD basic configuration and displaying:
 * -# Uses LCDD_Initialize() to initialize the controller and LCD.
 * -# LCDD_On() and LCDD_Off() is used to turn LCD ON/OFF.
 * -# LCDD_SetBacklight() is used to change LCD backlight level.
 * -# To display a image (BMP format) on LCD, LCDD_ShowBMPRotated()
 *    LCDD_ShowBMPScaled() and LCDD_ShowBMP() can be used.
 * -# To change configuration for an overlay layer, the following functions
 *    can use:
 *    -# LCDD_EnableLayer(), LCDD_IsLayerOn(): Turn ON/OFF layer, check status.
 *    -# LCDD_SetPosition(), LCDD_SetPrioty(), LCDD_EnableAlpha(),
 *       LCDD_SetAlpha(), LCDD_SetColorKeying(): Change display options.
 * -# Shortcuts for layer display are as following:
 *    -# LCDD_ShowBase(), LCDD_StopBase()
 *    -# LCDD_ShowOvr1(), LCDD_StopOvr1()
 *    -# LCDD_ShowHeo(), LCDD_StopHeo()
 *    -# LCDD_ShowHcr(), LCDD_StopHcr()
 * -# Drawing supporting fucntions, for drawing canvas:
 *    -# LCDD_CreateCanvas(): Create blank canvas on specified layer for
 *                            drawing on
 *    -# LCDD_SelectCanvas(): Select a displayer as canvas to drawing on
 *    -# LCDD_GetCanvas():    Get current selected canvas layer
 *
 * For LCD drawing functions, refer to \ref lcdd_draw.
 *
 * For LCD string display, refer to \ref lcdd_font.
 *
 * @{
 *   \defgroup lcdd_base LCD Driver General Operations
 *   @{
 *     Implementation of LCD driver, Include LCD initialization,
 *     LCD on/off and LCD backlight control.
 *
 *     \sa \ref lcdd_base_usage "LCD Driver General Usage"
 *   @}
 *   \defgroup lcdd_draw LCD Driver Simple Drawing
 *   @{
 *   @}
 *   \defgroup lcdd_font LCD Driver Font Display
 *   @{
 *   @}
 * @}
 */

#ifndef LCDD_H
#define LCDD_H
/** \addtogroup lcdd_base
 *  @{
 */

/*----------------------------------------------------------------------------
 *        Defines
 *----------------------------------------------------------------------------*/

/** \addtogroup lcdd_disp_id LCD display layers IDs
 *      @{
 */
/** LCD controller ID, no display, configuration ONLY */
#define LCDD_CONTROLLER     0
/** LCD base layer, display fixed size image */
#define LCDD_BASE           1
/** LCD Overlay 1 */
#define LCDD_OVR1           2
/** LCD Overlay 2 */
#define LCDD_OVR2           4
/** LCD HighEndOverlay, support resize */
#define LCDD_HEO            3
/** LCD Cursor, max size 128x128 */
#define LCDD_CUR            6
/**     @}*/

/*----------------------------------------------------------------------------
 *        Types
 *----------------------------------------------------------------------------*/

/** LCD display layer information */
typedef struct _LcddLayer {
    void* pBuffer;      /**< Display image buffer */
    uint16_t wImgW;     /**< Display image width */
    uint16_t wImgH;     /**< Display image height */
    uint8_t  bMode;     /**< Image bpp (16,24,32) for RGB mode */
    uint8_t  bLayer;    /**< Layer ID */
} sLCDDLayer;

/*----------------------------------------------------------------------------
 *        Exported functions
 *----------------------------------------------------------------------------*/

extern void LCDD_Initialize(void);

extern void LCDD_On(void);
extern void LCDD_Off(void);
extern void LCDD_SetBacklight (uint32_t step);

extern void LCDD_EnableLayer(uint8_t bLayer,uint8_t bEnDis);
extern uint8_t LCDD_IsLayerOn(uint8_t bLayer);
extern void LCDD_SetPosition(uint8_t bLayer,uint32_t x,uint32_t y);
extern void LCDD_SetPrioty(uint8_t bLayer,uint8_t bPri);
extern uint8_t LCDD_GetPrioty(uint8_t bLayer);
extern void LCDD_EnableAlpha(uint8_t bLayer,uint8_t bEnDisLA,uint8_t bEnDisGA);
extern void LCDD_SetAlpha(uint8_t bLayer, uint8_t bReverse, uint8_t bAlpha);
extern uint8_t LCDD_GetAlpha(uint8_t bLayer);
extern void LCDD_SetColorKeying(uint8_t bLayer,
                                uint8_t bDstSrc,
                                uint32_t dwColor,uint32_t dwMask);
extern void LCDD_DisableColorKeying(uint8_t bLayer);
extern void LCDD_SetCLUT(uint8_t bLayer,
                         uint32_t * pCLUT,
                         uint8_t bpp,uint8_t nbColors);

extern void LCDD_Refresh(uint8_t bLayer);

extern void *LCDD_ShowBMPRotated(uint8_t bLayer,
                                 void * pBuffer,uint8_t bpp,
                                 uint32_t x,uint32_t y,int32_t w,int32_t h,
                                 uint32_t imgW,uint32_t imgH,
                                 int16_t wRotate);
extern void *LCDD_ShowBMPScaled(uint8_t bLayer,
                                void * pBuffer,uint8_t bpp,
                                uint32_t x,uint32_t y,int32_t w,int32_t h,
                                uint32_t imgW,uint32_t imgH);
extern void *LCDD_ShowBMP(uint8_t bLayer,
                         void * pBuffer,uint8_t bpp,
                         uint32_t x,uint32_t y,int32_t w,int32_t h);

extern void *LCDD_ShowBase(void * pBuffer, uint8_t bpp, uint8_t bScanBottomUp);
extern void LCDD_StopBase(void);

extern void *LCDD_ShowOvr1(void * pBuffer, uint8_t bpp,
                          uint32_t x,uint32_t y,int32_t w,int32_t h);
extern void LCDD_StopOvr1(void);

extern void *LCDD_ShowHeo(void * pBuffer, uint8_t bpp,
                         uint32_t x,uint32_t y,int32_t w,int32_t h,
                         uint32_t memW,uint32_t memH);
extern void LCDD_StopHeo(void);

extern void *LCDD_ShowHcr(void * pBuffer, uint8_t bpp,
                         uint32_t x,uint32_t y,int32_t w,int32_t h);
extern void LCDD_StopHcr(void);

extern sLCDDLayer *LCDD_GetCanvas(void);
extern uint8_t LCDD_SelectCanvas(uint8_t bLayer);
extern void *LCDD_CreateCanvas(uint8_t bLayer,
                               void * pBuffer,uint8_t bBPP,
                               uint16_t wX,uint16_t wY,uint16_t wW,uint16_t wH);
extern void LCDD_Flush_CurrentCanvas(void);
/**  @}*/
#endif /* #ifndef LCDD_H */