gui_drawbitmap.c

来自「uCGUI」· C语言 代码 · 共 63 行

/*************************************************************************************************************
                                                   uC/GUI
                                               嵌入式通用图形软件
File        : GUI_DrawBitmap.C
Purpose     : Implementation of GUI_DrawBitmap
************************************************************************************************************/
#include "GUI_Protected.H"

/*************************************************************************************************************
             GUI_DrawBitmap
  Translates the external bitmap format into an internal
  format. This turned out to be necessary as the internal
  format is easier to create and more flexible for routines
  that draw text-bitmaps.
*************************************************************************************************************/
void GL_DrawBitmap (const GUI_BITMAP *pBitmap, int x0, int y0) 
{
  GUI_DRAWMODE PrevDraw;
  const GUI_LOGPALETTE* pPal;
  pPal = pBitmap->pPal;
  PrevDraw = GUI_SetDrawMode(0);  /* No Get... at this point */
  GUI_SetDrawMode((pPal && pPal->HasTrans) ? (PrevDraw|GUI_DRAWMODE_TRANS) : PrevDraw &(~GUI_DRAWMODE_TRANS));
  if (pBitmap->pfDraw) 
  {
    #if !defined (__C51__)  /* Avoid Keil C51 limitation */
      pBitmap->pfDraw(x0, y0, pBitmap->XSize ,pBitmap->YSize, (U8 const *)pBitmap->pData, pBitmap->pPal, 1, 1);
    #endif
  } 
  else 
  {
    LCD_DrawBitmap( x0,y0
                    ,pBitmap->XSize ,pBitmap->YSize
                    ,1,1
                    ,pBitmap->BitsPerPixel
                    ,pBitmap->BytesPerLine
                    ,(U8 const *)pBitmap->pData
                    ,pBitmap->pPal);
  }
  GUI_SetDrawMode(PrevDraw);
}

void GUI_DrawBitmap(const GUI_BITMAP  *pBitmap, int x0, int y0) 
{
  #if (GUI_WINSUPPORT)
    GUI_RECT r;
  #endif
  GUI_LOCK();
  #if (GUI_WINSUPPORT)
    WM_ADDORG(x0,y0);
    r.x1 = (r.x0 = x0) + pBitmap->XSize-1;
    r.y1 = (r.y0 = y0) + pBitmap->YSize-1;
    WM_ITERATE_START(&r) {
  #endif
  GL_DrawBitmap(pBitmap, x0, y0);
  #if (GUI_WINSUPPORT)
    } WM_ITERATE_END();
  #endif
  GUI_UNLOCK();
}