GUI_Memdev_writeExAt transparent background problem

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    • GUI_Memdev_writeExAt transparent background problem

      Hi
      I have made two memory devices in WM_PAINT event of the window and when I write first memdev to second one with GUI_Memdev_writeExAt function, the transparent back ground color changes to black. GUI_Memdev_writeAt works correctly but GUI_Memdev_writeExAt does not. Both Memdevs use guicc_8888 color conversion format and my lcd color conversion format is guicc_M565. Do I need to change the back color data manually by use of GUI_memdev_getDataPtr function?

      Source Code

      1. static void _cbParameterWindowBase(WM_MESSAGE * pMsg) {
      2. int NCode;
      3. int Id;
      4. WM_HWIN hItem;
      5. WM_HWIN hWin;
      6. GUI_MEMDEV_Handle prevHmem;
      7. GUI_MEMDEV_Handle hMemSource;
      8. GUI_MEMDEV_Handle hMemDest,hMemDest2;
      9. U32 * p1,*p2,*p3;
      10. unsigned long * pix,*pData;
      11. char testString1[100];
      12. /*int xWidget;
      13. int yWidget;
      14. int xSizeWidget;
      15. int ySizeWidget;
      16. int xSizeWindow;
      17. int ySizeWindow;*/
      19. hWin=pMsg->hWin;
      21. switch (pMsg->MsgId) {
      22. case WM_PRE_PAINT:
      24. break;
      25. case WM_PAINT:
      26. //WINDOW_SetBkColor(hWin,GUI_WHITE);
      28. GUI_SetBkColor(GUI_YELLOW);
      29. GUI_Clear();
      30. hMemSource = GUI_MEMDEV_CreateFixed(0, 0, 64, 64, GUI_MEMDEV_HASTRANS, GUI_MEMDEV_APILIST_32, GUICC_8888);
      31. hMemDest = GUI_MEMDEV_CreateFixed(0, 0, 64, 64, GUI_MEMDEV_HASTRANS, GUI_MEMDEV_APILIST_32, GUICC_8888);
      32. hMemDest2 = GUI_MEMDEV_CreateFixed(0, 0, 64, 64, GUI_MEMDEV_HASTRANS, GUI_MEMDEV_APILIST_32, GUICC_8888);
      33. prevHmem=GUI_MEMDEV_Select(hMemSource);
      34. GUI_SetBkColor(GUI_TRANSPARENT);
      35. GUI_Clear();
      37. // if(selectedImage>0)
      38. // {
      39. // GUI_CreateBitmapFromStreamRLE4(&Bitmap[selectedImage-1], &Palette[selectedImage-1], icon6464_rel4[selectedImage-1].data);
      40. // if(Bitmap[selectedImage-1].pPal->NumEntries==4)
      41. // {
      42. // Bitmap[selectedImage-1].pPal->pPalEntries[3]=GUI_BLUE;
      43. // GUI_DrawBitmap(&Bitmap[selectedImage-1], 0, 0);//,0,0,1000,1000);
      44. // //GUI_DrawBitmapMag(&Bitmap[selectedImage-1],0,0,xSize*1000/64,ySize*1000/64);
      45. // }
      46. // }
      49. GUI_SetColor(GUI_WHITE);
      50. GUI_FillEllipse(20,20,10,20);
      51. //
      52. GUI_MEMDEV_Select(hMemDest);
      53. GUI_SetBkColor(GUI_TRANSPARENT);
      54. GUI_Clear();
      56. GUI_MEMDEV_RotateHQ(hMemSource, hMemDest, 0, 0, 30 * 1000, 1000);
      58. GUI_MEMDEV_Select(hMemDest2);
      59. //GUI_EnableAlpha(1);
      61. GUI_SetBkColor(GUI_TRANSPARENT);
      62. GUI_Clear();
      63. GUI_PreserveTrans(1);
      64. GUI_SetDrawMode(GUI_DM_NORMAL);
      65. GUI_MEMDEV_WriteEx(hMemDest, 64*1000/64,80*1000/64,0);
      66. GUI_SetDrawMode(GUI_DM_NORMAL);
      68. // pData = GUI_MEMDEV_GetDataPtr(hMemDest2);
      69. // // clear it with transparency
      70. // for (pix = (unsigned long *) pData; pix < (unsigned long *) pData + (GUI_MEMDEV_GetXSize(hMemDest2)*GUI_MEMDEV_GetYSize(hMemDest2)); pix++)
      71. // { if(*pix==0)
      72. // {
      73. // *pix = GUI_TRANSPARENT;
      74. // }
      75. // }
      77. GUI_MEMDEV_Select(prevHmem);
      81. GUI_MEMDEV_WriteAt(hMemDest, 0 +500, 0 +00);//,1000,1000,255);
      83. GUI_MEMDEV_WriteAt(hMemSource, 0 +600, 0 +00);//,64*1000/64,80*1000/64,255);
      85. GUI_MEMDEV_WriteAt(hMemDest2, 0 +700, 0 +00);//,1000,1000,255);
      86. GUI_SetDrawMode(GUI_DM_TRANS);
      87. GUI_MEMDEV_WriteExAt(hMemSource, 0 +400, 0 +00,64*1000/64,80*1000/64,255);
      88. GUI_SetDrawMode(GUI_DM_NORMAL);
      89. GUI_PreserveTrans(0);
      90. GUI_EnableAlpha(0);
      91. //GUI_MEMDEV_WriteAt(hMemDest, xOff +600, yOff +20);
      92. GUI_MEMDEV_Delete(hMemSource);
      93. GUI_MEMDEV_Delete(hMemDest);
      94. GUI_MEMDEV_Delete(hMemDest2);
      95. //GUI_DrawBitmap(&Bitmap[0], 400, 100);
      97. break;
      99. case WM_NOTIFY_PARENT:
      100. Id = WM_GetId(pMsg->hWinSrc);
      101. NCode = pMsg->Data.v;
      103. break;
      104. default:
      105. WM_DefaultProc(pMsg);
      106. break;
      107. }
      108. }
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      Thanks.

      The post was edited 1 time, last by mtajian ().