lcdmemc.c

lpc2478+ucosII+ucgui源码

        *          LCD_DrawHLine optimized                      *
        *                                                       *
        *          Normal display, 6 Bpp                        *
        *                                                       *
        *********************************************************
*/

#elif    (LCD_OPTIMIZE)             \
      && (!LCD_MIRROR_X)            \
      && (!LCD_MIRROR_Y)            \
      && (!LCD_SWAP_XY)             \
      && (!LCD_SUPPORT_COMTRANS)    \
      && (!LCD_SUPPORT_SEGTRANS)    \
      && (LCD_BITSPERPIXEL == 6)

static U8 MaskLeft[8][3] = {
  { 0xff, 0xff, 0xff},
  { 0x1f, 0xff, 0xff},
  { 0x03, 0xff, 0xff},
  { 0x00, 0x7f, 0xff},
  { 0x00, 0x0f, 0xff},
  { 0x00, 0x01, 0xff},
  { 0x00, 0x00, 0x3f},
  { 0x00, 0x00, 0x07}/*!!!0x0e*/
};

static U8 MaskRight[8][3] = {
  { 0xe0, 0x00, 0x00},
  { 0xfc, 0x00, 0x00},
  { 0xff, 0x80, 0x00},
  { 0xff, 0xf0, 0x00},
  { 0xff, 0xfe, 0x00},
  { 0xff, 0xff, 0xc0},
  { 0xff, 0xff, 0xf8},
  { 0xff, 0xff, 0xff}
};

static U8* GetMaskRight(int x) { return &MaskRight[(x&7)][0]; }
static U8* GetMaskLeft (int x) { return &MaskLeft[(x&7)][0]; }

void LCD_L0_DrawHLine  (int x0, int y,  int x1) {
  if (x0>x1) return;  /* Check if nothing to draw */
  if (GUI_Context.DrawMode & LCD_DRAWMODE_XOR) {
    while (x0 <= x1) {
      XORPIXEL(x0, y);
      x0++;
    }
  } else {
    int i;
    U8 LCD_VRAMTYPE* p0 = OFF2PTR_0(XY2OFF(x0,y));
    U8 LCD_VRAMTYPE* p1 = OFF2PTR_1(XY2OFF(x0,y));
    U8* pMask = GetMaskLeft(x0);
    U8 aData[2][3];
    U8 aDataMasked[2][3];
    U8 c0 = ((COLOR & 0x20) >> 3) + ((COLOR & 0x08) >> 2) + ((COLOR & 0x02) >> 1);
    U8 c1 = ((COLOR & 0x10) >> 2) + ((COLOR & 0x04) >> 1) +  (COLOR & 0x01);
    aData[0][0] = (c0<<5)|(c0<<2)|(c0>>1);         /* hhhgggff */
    aData[0][1] = (c0<<7)|(c0<<4)|(c0<<1)|(c0>>2); /* feeedddc */
    aData[0][2] = (c0<<6)|(c0<<3)|(c0);            /* ccbbbaaa */
    aData[1][0] = (c1<<5)|(c1<<2)|(c1>>1);         /* hhhgggff */
    aData[1][1] = (c1<<7)|(c1<<4)|(c1<<1)|(c1>>2); /* feeedddc */
    aData[1][2] = (c1<<6)|(c1<<3)|(c1);            /* ccbbbaaa */
    for (i=0; i<3; i++, pMask++) {
      aDataMasked[0][i] = (*(p0+i) &~*pMask) | (aData[0][i] &*pMask);
      aDataMasked[1][i] = (*(p1+i) &~*pMask) | (aData[1][i] &*pMask);
    }
    if ((x0&~7) == (x1&~7)) {    /* Do we have to clip left and right side ? */
      U8* pMask = GetMaskRight(x1);
      *(p0+0) = (*(p0+0) &~*(pMask+0)) | (aDataMasked[0][0]&*(pMask+0));
      *(p0+1) = (*(p0+1) &~*(pMask+1)) | (aDataMasked[0][1]&*(pMask+1));
      *(p0+2) = (*(p0+2) &~*(pMask+2)) | (aDataMasked[0][2]&*(pMask+2));
      *(p1+0) = (*(p1+0) &~*(pMask+0)) | (aDataMasked[1][0]&*(pMask+0));
      *(p1+1) = (*(p1+1) &~*(pMask+1)) | (aDataMasked[1][1]&*(pMask+1));
      *(p1+2) = (*(p1+2) &~*(pMask+2)) | (aDataMasked[1][2]&*(pMask+2));
      return;
    }
    *p0     = aDataMasked[0][0];
    *(p0+1) = aDataMasked[0][1];
    *(p0+2) = aDataMasked[0][2];
    p0+=3;
    *p1     = aDataMasked[1][0];
    *(p1+1) = aDataMasked[1][1];
    *(p1+2) = aDataMasked[1][2];
    p1+=3;
    x0 = (x0&~7)+8;
/* Draw optimized portion */
    {
      int Len = (x1-x0+1)>>3;
      if (Len >0) {
        x0 += Len<<3;
        do {
          *p0     = aData[0][0];
          *(p0+1) = aData[0][1];
          *(p0+2) = aData[0][2];
          p0+=3;
          *p1     = aData[1][0];
          *(p1+1) = aData[1][1];
          *(p1+2) = aData[1][2];
          p1+=3;
        } while (--Len);
      }
    }
    /* Draw right portion */
    if ((x1&7)!=7) {
      U8* pMask = GetMaskRight(x1);
      for (i=0; i<3; i++, pMask++) {
        *(p0+i) = (*(p0+i) &~*pMask) | (aData[0][i]&*pMask);
        *(p1+i) = (*(p1+i) &~*pMask) | (aData[1][i]&*pMask);
      }
    }
  }
}

/*
        *********************************************************
        *                                                       *
        *          LCD_DrawHLine                                *
        *                                                       *
        *          Unoptimized                                  *
        *                                                       *
        *********************************************************
*/

#else
void LCD_L0_DrawHLine(int x0, int y,  int x1) {
  if (x0>x1) return;  /* Check if nothing to draw */
  if (GUI_Context.DrawMode & LCD_DRAWMODE_XOR) {
    while (x0 <= x1) {
      XORPIXEL(x0, y);
      x0++;
    }
  } else {
    while (x0 <= x1) {
      SETPIXEL(x0, y, COLOR);
      x0++;
    }
  }
}
#endif


/*
        *********************************************************
        *                                                       *
        *          LCD_DrawVLine                                *
        *                                                       *
        *          Unoptimized                                  *
        *                                                       *
        *********************************************************
*/

void LCD_L0_DrawVLine  (int x, int y0,  int y1) {
  if (GUI_Context.DrawMode & LCD_DRAWMODE_XOR) {
    while (y0 <= y1) {
      XORPIXEL(x, y0);
      y0++;
    }
  } else {
    while (y0 <= y1) {
      SETPIXEL(x, y0, COLOR);
      y0++;
    }
  }
}

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


/*
  ***************************************************************
  *                                                             *
  *            Internal bitmap routines                         *
  *                                                             *
  ***************************************************************

*/


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

static void  DrawBitLine1BPP(int x, int y, U8 const*p, int Diff, int xsize, const LCD_PIXELINDEX*pTrans) {
  LCD_PIXELINDEX pixels;
  LCD_PIXELINDEX Index0 = *(pTrans+0);
  LCD_PIXELINDEX Index1 = *(pTrans+1);
/*
// Jump to right entry point
*/
  pixels = *p;
  switch (GUI_Context.DrawMode & (LCD_DRAWMODE_TRANS|LCD_DRAWMODE_XOR)) {
  case 0:
#if      (LCD_OPTIMIZE)             \
      && (!LCD_MIRROR_X)            \
      && (!LCD_MIRROR_Y)            \
      && (!LCD_SWAP_XY)             \
      && (!LCD_SUPPORT_COMTRANS)    \
      && (!LCD_SUPPORT_SEGTRANS)    \
      && ((LCD_BITSPERPIXEL == 3) || (LCD_BITSPERPIXEL == 6))
    SetPosXY(x+(Diff&7),y);
#endif
    switch (Diff&7) {
    case 0:   
      goto WriteBit0;
    case 1:   
      goto WriteBit1;
    case 2:
      goto WriteBit2;
    case 3:
      goto WriteBit3;
    case 4:
      goto WriteBit4;
    case 5:   
      goto WriteBit5;
    case 6:   
      goto WriteBit6;
    case 7:   
      goto WriteBit7;
    }
    break;
  case LCD_DRAWMODE_TRANS:
    switch (Diff&7) {
    case 0:
      goto WriteTBit0;
    case 1:
      goto WriteTBit1;
    case 2:
      goto WriteTBit2;
    case 3:
      goto WriteTBit3;
    case 4:
      goto WriteTBit4;
    case 5:   
      goto WriteTBit5;
    case 6:   
      goto WriteTBit6;
    case 7:   
      goto WriteTBit7;
    }
    break;
  case LCD_DRAWMODE_XOR:
    switch (Diff&7) {
    case 0:   
      goto WriteXBit0;
    case 1:   
      goto WriteXBit1;
    case 2:
      goto WriteXBit2;
    case 3:
      goto WriteXBit3;
    case 4:
      goto WriteXBit4;
    case 5:   
      goto WriteXBit5;
    case 6:   
      goto WriteXBit6;
    case 7:   
      goto WriteXBit7;
    }
  }
/*
        Write with transparency
*/
  WriteTBit0:
    if (pixels&(1<<7)) SETPIXEL(x+0, y, Index1);
    if (!--xsize)
      return;
  WriteTBit1:
    if (pixels&(1<<6)) SETPIXEL(x+1, y, Index1);
    if (!--xsize)
      return;
  WriteTBit2:
    if (pixels&(1<<5)) SETPIXEL(x+2, y, Index1);
    if (!--xsize)
      return;
  WriteTBit3:
    if (pixels&(1<<4)) SETPIXEL(x+3, y, Index1);
    if (!--xsize)
      return;
  WriteTBit4:
    if (pixels&(1<<3)) SETPIXEL(x+4, y, Index1);
    if (!--xsize)
      return;
  WriteTBit5:
    if (pixels&(1<<2)) SETPIXEL(x+5, y, Index1);
    if (!--xsize)
      return;
  WriteTBit6:
    if (pixels&(1<<1)) SETPIXEL(x+6, y, Index1);
    if (!--xsize)
      return;
  WriteTBit7:
    if (pixels&(1<<0)) SETPIXEL(x+7, y, Index1);
    if (!--xsize)
      return;
    x+=8;
    pixels = *(++p);
    goto WriteTBit0;

/*
        Write without transparency
*/
#if      (LCD_OPTIMIZE)             \
      && (!LCD_MIRROR_X)            \
      && (!LCD_MIRROR_Y)            \
      && (!LCD_SWAP_XY)             \
      && (!LCD_SUPPORT_COMTRANS)    \
      && (!LCD_SUPPORT_SEGTRANS)    \
      && ((LCD_BITSPERPIXEL == 3) || (LCD_BITSPERPIXEL == 6))

  WriteBit0:
    SetNextPixel((pixels&(1<<7)) ? Index1 : Index0);
    if (!--xsize) return;
  WriteBit1:
    SetNextPixel((pixels&(1<<6)) ? Index1 : Index0);
    if (!--xsize) return;
  WriteBit2:
    SetNextPixel((pixels&(1<<5)) ? Index1 : Index0);
    if (!--xsize) return;
  WriteBit3:
    SetNextPixel((pixels&(1<<4)) ? Index1 : Index0);
    if (!--xsize) return;
  WriteBit4:
    SetNextPixel((pixels&(1<<3)) ? Index1 : Index0);
    if (!--xsize) return;
  WriteBit5:
    SetNextPixel((pixels&(1<<2)) ? Index1 : Index0);
    if (!--xsize) return;
  WriteBit6:
    SetNextPixel((pixels&(1<<1)) ? Index1 : Index0);
    if (!--xsize) return;
  WriteBit7:
    SetNextPixel((pixels&(1<<0)) ? Index1 : Index0);
    if (!--xsize) return;
    x+=8;
    pixels = *(++p);
    goto WriteBit0;
#else
  WriteBit0:
    SETPIXEL(x+0, y, (pixels&(1<<7)) ? Index1 : Index0);
    if (!--xsize)
      return;
  WriteBit1:
    SETPIXEL(x+1, y, (pixels&(1<<6)) ? Index1 : Index0);
    if (!--xsize)
      return;
  WriteBit2:
    SETPIXEL(x+2, y, (pixels&(1<<5)) ? Index1 : Index0);
    if (!--xsize)
      return;
  WriteBit3:
    SETPIXEL(x+3, y, (pixels&(1<<4)) ? Index1 : Index0);
    if (!--xsize)
      return;
  WriteBit4:
    SETPIXEL(x+4, y, (pixels&(1<<3)) ? Index1 : Index0);
    if (!--xsize)
      return;
  WriteBit5:
    SETPIXEL(x+5, y, (pixels&(1<<2)) ? Index1 : Index0);
    if (!--xsize)
      return;
  WriteBit6:
    SETPIXEL(x+6, y, (pixels&(1<<1)) ? Index1 : Index0);
    if (!--xsize)
      return;
  WriteBit7:
    SETPIXEL(x+7, y, (pixels&(1<<0)) ? Index1 : Index0);
    if (!--xsize)
      return;
    x+=8;
    pixels = *(++p);
    goto WriteBit0;
#endif
/*
        Write XOR mode
*/
  WriteXBit0:
    if (pixels&(1<<7))
      XORPIXEL(x+0, y);
    if (!--xsize)
      return;
  WriteXBit1:
    if (pixels&(1<<6))
      XORPIXEL(x+1, y);
    if (!--xsize)
      return;
  WriteXBit2:
    if (pixels&(1<<5))
      XORPIXEL(x+2, y);
    if (!--xsize)
      return;
  WriteXBit3:
    if (pixels&(1<<4))
      XORPIXEL(x+3, y);
    if (!--xsize)
      return;
  WriteXBit4:
    if (pixels&(1<<3))
      XORPIXEL(x+4, y);
    if (!--xsize)
      return;
  WriteXBit5:
    if (pixels&(1<<2))
      XORPIXEL(x+5, y);
    if (!--xsize)
      return;
  WriteXBit6: