/*
*********************************************************************************************************
*                                                uC/GUI
*                        Universal graphic software for embedded applications
*
*                       (c) Copyright 2002, Micrium Inc., Weston, FL
*                       (c) Copyright 2002, SEGGER Microcontroller Systeme GmbH
*
*              礐/GUI is protected by international copyright laws. Knowledge of the
*              source code may not be used to write a similar product. This file may
*              only be used in accordance with a license and should not be redistributed
*              in any way. We appreciate your understanding and fairness.
*
----------------------------------------------------------------------
File        : LCDDummy.C
Purpose     : Empty driver for emWin GSC
              This driver does no perform any function, but it can be
              used for 2 purposes:
              a) Satisfy all externals so an application can be
                compiled and linked in target hardware even if the
                driver is not already available
              b) Template for a starting point for a new driver.
----------------------------------------------------------------------   
Adapting to a new system (creating a new driver):
  In this case, the first step is to fill the routines 
  LCD_L0_GetPixelIndex, LCD_L0_SetPixelIndex and LCD_L0_Init with
  functionality, which is sufficient to make the hardware work.
  A second (optional) step would be to optimize higher level routines. 
----------------------------------------------------------------------   
Version-Date---Author-Explanation                                        
----------------------------------------------------------------------   
1.00.00 020417 JE     a) Changed to have only to adapt _GetPixelIndex
                         and _SetPixelIndex
0.90.00 020214 JE     a) First release
---------------------------END-OF-HEADER------------------------------
*/

#include "LCD_Private.h"      /* private modul definitions & config */
#include "GUI_Private.h"
#include "GUIDebug.h"
#include "LCD_0.h"            /* Defines for first display */

#if (LCD_CONTROLLER == -1) \
    && (!defined(WIN32) | defined(LCD_SIMCONTROLLER))

/*********************************************************************
*
*       Defines
*
**********************************************************************
*/

#ifndef LCD_INIT_CONTROLLER
  #define LCD_INIT_CONTROLLER()
#endif

/*********************************************
*
*       Macros for MIRROR_, SWAP_ and LUT_
*
**********************************************
*/

#if (!defined (LCD_LUT_COM) && !defined(LCD_LUT_SEG))
  #if   (!LCD_MIRROR_X && !LCD_MIRROR_Y && !LCD_SWAP_XY) 
    #define LOG2PHYS_X(x, y) x
    #define LOG2PHYS_Y(x, y) y
  #elif (!LCD_MIRROR_X && !LCD_MIRROR_Y &&  LCD_SWAP_XY) 
    #define LOG2PHYS_X(x, y) y
    #define LOG2PHYS_Y(x, y) x
  #elif (!LCD_MIRROR_X &&  LCD_MIRROR_Y && !LCD_SWAP_XY) 
    #define LOG2PHYS_X(x, y) x
    #define LOG2PHYS_Y(x, y) LCD_YSIZE - 1 - (y)
  #elif (!LCD_MIRROR_X &&  LCD_MIRROR_Y &&  LCD_SWAP_XY) 
    #define LOG2PHYS_X(x, y) LCD_YSIZE - 1 - (y)
    #define LOG2PHYS_Y(x, y) x
  #elif ( LCD_MIRROR_X && !LCD_MIRROR_Y && !LCD_SWAP_XY) 
    #define LOG2PHYS_X(x, y) LCD_XSIZE - 1 - (x)
    #define LOG2PHYS_Y(x, y) y
  #elif ( LCD_MIRROR_X && !LCD_MIRROR_Y &&  LCD_SWAP_XY) 
    #define LOG2PHYS_X(x, y) LCD_YSIZE - 1 - (y)
    #define LOG2PHYS_Y(x, y) x
  #elif ( LCD_MIRROR_X &&  LCD_MIRROR_Y && !LCD_SWAP_XY) 
    #define LOG2PHYS_X(x, y) LCD_XSIZE - 1 - (x)
    #define LOG2PHYS_Y(x, y) LCD_YSIZE - 1 - (y)
  #elif ( LCD_MIRROR_X &&  LCD_MIRROR_Y &&  LCD_SWAP_XY) 
    #error This combination of mirroring/swapping not yet supported
  #endif
#else
  #if   ( defined (LCD_LUT_COM) && !defined(LCD_LUT_SEG))
    #define LOG2PHYS_X(x, y) x
    #define LOG2PHYS_Y(x, y) LCD__aLine2Com0[y]
  #elif (!defined (LCD_LUT_COM) &&  defined(LCD_LUT_SEG))
    #define LOG2PHYS_X(x, y) LCD__aCol2Seg0[x]
    #define LOG2PHYS_Y(x, y) y
  #elif ( defined (LCD_LUT_COM) &&  defined(LCD_LUT_SEG))
    #define LOG2PHYS_X(x, y) LCD__aCol2Seg0[x]
    #define LOG2PHYS_Y(x, y) LCD__aLine2Com0[y]
  #endif
#endif

/*********************************************
*
*       Macros for simulation
*
**********************************************
*/

#ifdef WIN32
  #undef LCD_WRITE_A0
  #undef LCD_WRITE_A1
  #undef LCD_READ_A0
  #undef LCD_READ_A1
  void SIM_WriteA1C0(U8 Data);
  void SIM_WriteA0C0(U8 cmd);
  U8   SIM_ReadA1C0(void);
  U8   SIM_ReadA0C0(void);
  #define LCD_WRITE_A1(Data) SIM_WriteA1C0(Data) 
  #define LCD_WRITE_A0(cmd)  SIM_WriteA0C0(cmd)
  #define LCD_READ_A1()      SIM_ReadA1C0()
  #define LCD_READ_A0()      SIM_ReadA0C0()
#endif

/*********************************************************************
*
*       Static functions
*
**********************************************************************
*/

/*********************************************
*
*       Draw Bitmap 1 BPP
*
**********************************************
*/

static void  _DrawBitLine1BPP(int x, int y, U8 const*p, int Diff, int xsize, const LCD_PIXELINDEX*pTrans) {
  LCD_PIXELINDEX Index0 = *(pTrans+0);
  LCD_PIXELINDEX Index1 = *(pTrans+1);
  x += Diff;
  switch (GUI_Context.DrawMode & (LCD_DRAWMODE_TRANS | LCD_DRAWMODE_XOR)) {
    case 0:
      do {
        LCD_L0_SetPixelIndex(x++, y, (*p & (0x80 >> Diff)) ? Index1 : Index0);
			  if (++Diff == 8) {
          Diff = 0;
				  p++;
			  }
		  } while (--xsize);
      break;
    case LCD_DRAWMODE_TRANS:
      do {
  		  if (*p & (0x80 >> Diff))
          LCD_L0_SetPixelIndex(x, y, Index1);
        x++;
			  if (++Diff == 8) {
          Diff = 0;
				  p++;
			  }
		  } while (--xsize);
      break;
    case LCD_DRAWMODE_XOR:;
      do {
  		  if (*p & (0x80 >> Diff)) {
          int Pixel = LCD_L0_GetPixelIndex(x, y);
          LCD_L0_SetPixelIndex(x, y, LCD_NUM_COLORS - 1 - Pixel);
        }
        x++;
			  if (++Diff == 8) {
          Diff = 0;
				  p++;
			  }
		  } while (--xsize);
      break;
	}
}

/*********************************************
*
*       Draw Bitmap 2 BPP
*
**********************************************
*/

#if (LCD_MAX_LOG_COLORS > 2)
static void  _DrawBitLine2BPP(int x, int y, U8 const * p, int Diff, int xsize, const LCD_PIXELINDEX * pTrans) {
  LCD_PIXELINDEX Pixels = *p;
  int CurrentPixel = Diff;
  x += Diff;
  switch (GUI_Context.DrawMode & (LCD_DRAWMODE_TRANS | LCD_DRAWMODE_XOR)) {
    case 0:
      do {
        int Shift = (3 - CurrentPixel) << 1;
        int Index = (Pixels & (0xC0 >> (6 - Shift))) >> Shift;
        LCD_PIXELINDEX PixelIndex = *(pTrans + Index);
        LCD_L0_SetPixelIndex(x++, y, PixelIndex);
        if (++CurrentPixel == 4) {
          CurrentPixel = 0;
          Pixels = *(++p);
        }
		  } while (--xsize);
      break;
    case LCD_DRAWMODE_TRANS:
      do {
        int Shift = (3 - CurrentPixel) << 1;
        int Index = (Pixels & (0xC0 >> (6 - Shift))) >> Shift;
        if (Index) {
          LCD_PIXELINDEX PixelIndex = *(pTrans + Index);
          LCD_L0_SetPixelIndex(x, y, PixelIndex);
        }
        x++;
        if (++CurrentPixel == 4) {
          CurrentPixel = 0;
          Pixels = *(++p);
        }
		  } while (--xsize);
      break;
  }
}
#endif

/*********************************************
*
*       Draw Bitmap 4 BPP
*
**********************************************
*/

#if (LCD_MAX_LOG_COLORS > 4)
static void  _DrawBitLine4BPP(int x, int y, U8 const * p, int Diff, int xsize, const LCD_PIXELINDEX * pTrans) {
  LCD_PIXELINDEX Pixels = *p;
  int CurrentPixel = Diff;
  switch (GUI_Context.DrawMode & (LCD_DRAWMODE_TRANS | LCD_DRAWMODE_XOR)) {
    case 0:
      do {
        int Shift = (1 - CurrentPixel) << 2;
        int Index = (Pixels & (0xF0 >> (4 - Shift))) >> Shift;
        LCD_PIXELINDEX PixelIndex = *(pTrans + Index);
        LCD_L0_SetPixelIndex(x++, y, PixelIndex);
        if (++CurrentPixel == 2) {
          CurrentPixel = 0;
          Pixels = *(++p);
        }
		  } while (--xsize);
      break;
    case LCD_DRAWMODE_TRANS:
      do {
        int Shift = (1 - CurrentPixel) << 2;
        int Index = (Pixels & (0xF0 >> (4 - Shift))) >> Shift;
        if (Index) {
          LCD_PIXELINDEX PixelIndex = *(pTrans + Index);
          LCD_L0_SetPixelIndex(x, y, PixelIndex);
        }
        x++;
        if (++CurrentPixel == 2) {
          CurrentPixel = 0;
          Pixels = *(++p);
        }
		  } while (--xsize);
      break;
  }
}
#endif

/*********************************************
*
*       Draw Bitmap 8 BPP
*
**********************************************
*/

#if (LCD_MAX_LOG_COLORS > 16)
static void  _DrawBitLine8BPP(int x, int y, U8 const * p, int xsize, const LCD_PIXELINDEX * pTrans) {
  LCD_PIXELINDEX Pixel;
  switch (GUI_Context.DrawMode & (LCD_DRAWMODE_TRANS | LCD_DRAWMODE_XOR)) {
    case 0:
      if (pTrans) {
        for (; xsize > 0; xsize--, x++, p++) {
          Pixel = *p;
          LCD_L0_SetPixelIndex(x, y, *(pTrans + Pixel));
        }
      } else {
        for (; xsize > 0; xsize--, x++, p++) {
          LCD_L0_SetPixelIndex(x, y, *p);
        }
      }
      break;
    case LCD_DRAWMODE_TRANS:
      if (pTrans) {
        for (; xsize > 0; xsize--, x++, p++) {
          Pixel = *p;