lcdslin.c

三星ARM芯片s3c2410基于ucosii

/*********************************************
*
*       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;
          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 * 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 of emWin
  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) {

  PutPixel(x,y,PixelIndex);  
 }

/*********************************************
*
*       LCD_L0_GetPixelIndex
*
**********************************************
Purpose:
  Returns the index of the given pixel. The upper layers of emWin
  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) {
 return(LCD_BUFER[y][x]);
 
}

/*********************************************
*
*       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* 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;
      case 2:
        _DrawBitLine2BPP(x0, i + y0, pData, Diff, xsize, pTrans);
        break;
      case 4:
        _DrawBitLine4BPP(x0, i + y0, pData, Diff, xsize, pTrans);
        break;
      case 8:
        _DrawBitLine8BPP(x0, i + y0, pData, xsize, pTrans);
        break;
      case 16:
        DrawBitLine16BPP(x0, i + y0, (const U16 *)pData, xsize, pTrans);
        break;
    }
    pData += BytesPerLine;
  }
}

/*********************************************
*
*       LCD_L0_SetOrg
*
**********************************************
*/

void LCD_L0_SetOrg(int x, int y) {
  GUI_USE_PARA(x);
  GUI_USE_PARA(y);
}

/*********************************************
*
*       LCD_On / LCD_Off
*
**********************************************
*/

void LCD_On (void) {
}

void LCD_Off (void) {

}

/*********************************************
*
*       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);
}