/**
* @brief draw the image after scaling it
* @param hFile: pointer to the image file
* @param Enlarge: 0 = window mode
* 1 = full screen mode
* @param type: specify the image type
* this parameter can be:
* - IMAGE_TYPE_JPG
* - IMAGE_TYPE_BMP
* @retval None
*/
static int _DrawImage(FIL *hFile, uint8_t Enlarge, uint8_t type)
{
int XPos, YPos, XSize, YSize, nx, ny, n;
GUI_JPEG_INFO Info;
if(type == IMAGE_TYPE_BMP)
{
Info.XSize = GUI_BMP_GetXSizeEx(_GetData, hFile);
Info.YSize = GUI_BMP_GetYSizeEx(_GetData, hFile);
}
else if (type == IMAGE_TYPE_JPG)
{
GUI_JPEG_GetInfoEx(_GetData, hFile, &Info);
}
if((Info.XSize == 0) || (Info.YSize == 0) ||
(Info.XSize > 1024) || (Info.YSize > 768))
{
return 1;
}
if(Enlarge == 0)
{
nx = 220000 / Info.XSize;
ny = 134000 / Info.YSize;
}
else
{
nx = 320000 / Info.XSize;
ny = 240000 / Info.YSize;
}
if (nx < ny) {
n = nx;
} else {
n = ny;
}
XSize = Info.XSize * n / 1000;
YSize = Info.YSize * n / 1000;
if(Enlarge == 0)
{
XPos = (220 - XSize) / 2;
YPos = (134 - YSize) / 2;
}
else
{
XPos = (320 - XSize) / 2;
YPos = (240 - YSize) / 2;
}
if(type == IMAGE_TYPE_BMP)
{
return GUI_BMP_DrawScaledEx(_GetData, hFile, XPos, YPos, n, 1000);
}
else if (type == IMAGE_TYPE_JPG)
{
return GUI_JPEG_DrawScaledEx(_GetData, hFile, XPos, YPos, n, 1000);
}
return 0;
}
/*******************************************************************
*
* _ShowBMP
*
* Function description
* Shows the contents of a bitmap file
*/
static void _ShowBMP(const char * sFilename) {
HANDLE hFile;
int XSize;
int YSize;
int XPos;
int YPos;
hFile = CreateFile(sFilename, GENERIC_READ, 0, 0, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0);
GUI_ClearRect(0, 60, 319, 239);
XSize = GUI_BMP_GetXSizeEx(_GetData, &hFile);
YSize = GUI_BMP_GetYSizeEx(_GetData, &hFile);
XPos = (XSize > 320) ? 0 : 160 - (XSize / 2);
YPos = (YSize > 180) ? 60 : 150 - (YSize / 2);
if (!GUI_BMP_DrawEx(_GetData, &hFile, XPos, YPos)) {
GUI_Delay(2000);
}
CloseHandle(hFile);
}