lcddriver.c

移植UCGUI到S3C2440时,需要修改会编写的代码

            LCD_PIXELINDEX PixelIndex = *(pTrans + Index);
            LCD_L0_SetPixelIndex(x, y, PixelIndex);
          }
          x++;
          if (++CurrentPixel == 2) {
            CurrentPixel = 0;
            Pixels = *(++p);
          }
		    } while (--xsize);
      } else {
        do {
          int Shift = (1 - CurrentPixel) << 2;
          int Index = (Pixels & (0xF0 >> (4 - Shift))) >> Shift;
          if (Index) {
            LCD_L0_SetPixelIndex(x, y, Index);
          }
          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 GUI_UNI_PTR * 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;
          if (Pixel) {
            LCD_L0_SetPixelIndex(x, y, *(pTrans + Pixel));
          }
        }
      } else {
        for (; xsize > 0; xsize--, x++, p++) {
          Pixel = *p;
          if (Pixel) {
            LCD_L0_SetPixelIndex(x, y, Pixel);
          }
        }
      }
      break;
  }
}
#endif

/*********************************************************************
*
*       Draw Bitmap 16 BPP
*/
#if (LCD_BITSPERPIXEL > 8)
static void  DrawBitLine16BPP(int x, int y, U16 const GUI_UNI_PTR * p, int xsize, const LCD_PIXELINDEX * pTrans) {
  LCD_PIXELINDEX pixel;
  if ((GUI_Context.DrawMode & LCD_DRAWMODE_TRANS) == 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);
      }
    }
  } else {
    if (pTrans) {
      for (; xsize > 0; xsize--, x++, p++) {
        pixel = *p;
        if (pixel) {
          LCD_L0_SetPixelIndex(x, y, *(pTrans + pixel));
        }
      }
    } else {
      for (; xsize > 0; xsize--, x++, p++) {
        pixel = *p;
        if (pixel) {
          LCD_L0_SetPixelIndex(x, y, pixel);
        }
      }
    }
  }
}
#endif

/*********************************************************************
*
*       Exported functions
*
**********************************************************************
*/

/*********************************************************************
*
*       LCD_L0_SetPixelIndex
*
* Purpose:
*   Sets the index of the given pixel. The upper layers
*   calling this routine make sure that the coordinates are in range, so
*   that no check on the parameters needs to be performed.
*/
void LCD_L0_SetPixelIndex(int x, int y, int PixelIndex) 
{
    if ( (x < LCD_XSIZE) && (y < LCD_YSIZE) )
		LCD_BUFFER[(y)][(x)] = PixelIndex;
}

/*********************************************************************
*
*       LCD_L0_GetPixelIndex
*
* Purpose:
*   Returns the index of the given pixel. The upper layers
*   calling this routine make sure that the coordinates are in range, so
*   that no check on the parameters needs to be performed.
*/
unsigned int LCD_L0_GetPixelIndex(int x, int y) 
{
    LCD_PIXELINDEX PixelIndex;
    
    PixelIndex = LCD_BUFFER[y][x];
    return PixelIndex;
}

/*********************************************************************
*
*       LCD_L0_XorPixel
*/
void LCD_L0_XorPixel(int x, int y) {
  LCD_PIXELINDEX PixelIndex = LCD_L0_GetPixelIndex(x, y);
  LCD_L0_SetPixelIndex(x, y, LCD_NUM_COLORS - PixelIndex - 1);
}

/*********************************************************************
*
*       LCD_L0_DrawHLine
*/
void LCD_L0_DrawHLine  (int x0, int y,  int x1) {
  if (GUI_Context.DrawMode & LCD_DRAWMODE_XOR) {
    for (; x0 <= x1; x0++) {
      LCD_L0_XorPixel(x0, y);
    }
  } else {
    for (; x0 <= x1; x0++) {
      LCD_L0_SetPixelIndex(x0, y, LCD_COLORINDEX);
    }
  }
}

/*********************************************************************
*
*       LCD_L0_DrawVLine
*/
void LCD_L0_DrawVLine  (int x, int y0,  int y1) {
  if (GUI_Context.DrawMode & LCD_DRAWMODE_XOR) {
    for (; y0 <= y1; y0++) {
      LCD_L0_XorPixel(x, y0);
    }
  } else {
    for (; y0 <= y1; y0++) {
      LCD_L0_SetPixelIndex(x, y0, LCD_COLORINDEX);
    }
  }
}

/*********************************************************************
*
*       LCD_L0_FillRect
*/
void LCD_L0_FillRect(int x0, int y0, int x1, int y1) {
  for (; y0 <= y1; y0++) {
    LCD_L0_DrawHLine(x0, y0, x1);
  }
}

/*********************************************************************
*
*       LCD_L0_DrawBitmap
*/
void LCD_L0_DrawBitmap(int x0, int y0,
                       int xsize, int ysize,
                       int BitsPerPixel, 
                       int BytesPerLine,
                       const U8 GUI_UNI_PTR * pData, int Diff,
                       const LCD_PIXELINDEX* pTrans)
{
  int i;
  /* Use _DrawBitLineXBPP */
  for (i=0; i<ysize; i++) {
    switch (BitsPerPixel) {
    case 1:
      _DrawBitLine1BPP(x0, i + y0, pData, Diff, xsize, pTrans);
      break;
    #if (LCD_MAX_LOG_COLORS > 2)
      case 2:
        _DrawBitLine2BPP(x0, i + y0, pData, Diff, xsize, pTrans);
        break;
    #endif
    #if (LCD_MAX_LOG_COLORS > 4)
      case 4:
        _DrawBitLine4BPP(x0, i + y0, pData, Diff, xsize, pTrans);
        break;
    #endif
    #if (LCD_MAX_LOG_COLORS > 16)
      case 8:
        _DrawBitLine8BPP(x0, i + y0, pData, xsize, pTrans);
        break;
    #endif
    #if (LCD_BITSPERPIXEL > 8)
      case 16:
        DrawBitLine16BPP(x0, i + y0, (const U16 *)pData, xsize, pTrans);
        break;
    #endif
    }
    pData += BytesPerLine;
  }
}

/*********************************************************************
*
*       LCD_L0_SetOrg
*/
void LCD_L0_SetOrg(int x, int y) {
  LCD_SET_ORG(x, y);
}

/*********************************************************************
*
*       LCD_On / LCD_Off
*/
void LCD_On (void) {
    rLCDCON1|=1; // ENVID=ON
}

void LCD_Off (void) {
    rLCDCON1 =rLCDCON1 & 0x3fffe; // ENVID Off
}

/*********************************************************************
*
*       LCD_L0_Init
*
* Purpose:
*   Initialises the LCD-controller.
*/
int  LCD_L0_Init(void) {
  LCD_INIT_CONTROLLER();
  return 0;
}

/*********************************************************************
*
*       LCD_L0_SetLUTEntry
*/
void LCD_L0_SetLUTEntry(U8 Pos, LCD_COLOR Color) {
  GUI_USE_PARA(Pos);
  GUI_USE_PARA(Color);
}

/*********************************************************************
*
*       LCD_L0_GetDevFunc
*/
void * LCD_L0_GetDevFunc(int Index) {
  switch (Index) {
  case LCD_DEVFUNC_ISHW:
    return (void *)1;
  }
  return NULL;
}

#else

void LCDTemplate_c(void);
void LCDTemplate_c(void) { } /* avoid empty object files */

#endif /* (LCD_CONTROLLER undefined) */