Posted on December 15, 2016 at 20:28Hello.
I am experiencing the same problem on discovery/ EVAL1 board
I based my project on the HSTemwin/HelloWorld (no OS) and tried with SW4 and Keil MDK 5.
emwin version is 5.32 (embbeded in ST32Cube F4 V1.14.0)
I tested BMP, JPEG, PNG (I compiled emwin_png). Only BMP works witth the IMAGE Widget functions.
I built for each the same screen (WINDOW + image + button) with the GUI builder.
I also added a function the test JPEG support with the JPEG API (Gui_JPEG_xxx) : it works.
To notice that I did not found a sample project that use the IMAGE_SetJPEG function().
The GUIconf file assign 150ko for emwin pool in internal SRAM (192ko available for the MCU).
The code generated by GUIbuilder to display Image is the following :
static const GUI_WIDGET_CREATE_INFO _aDialogCreate[] = {
{ WINDOW_CreateIndirect, 'SRC1_272x480_JPG_', ID_WINDOW_0, 0, 0, 272, 480, 0, 0x0, 0 },
{ IMAGE_CreateIndirect, 'Logo', ID_IMAGE_0, 0, 60, 272, 131, 0, 0, 0 },
// USER START (Optionally insert additional widgets)
// USER END
};
static const U8 _acImage_0[11134] = { .... }
static void _cbDialog(WM_MESSAGE * pMsg) {
...
switch (pMsg->MsgId) {
case WM_INIT_DIALOG:
....
hItem = WM_GetDialogItem(pMsg->hWin, ID_IMAGE_0);
pData = _GetImageById(ID_IMAGE_0_IMAGE_0, &FileSize);
IMAGE_SetJPEG(hItem, pData, FileSize);
...
}
WM_HWIN CreateSRC1_272x480_JPG_(void);
WM_HWIN CreateSRC1_272x480_JPG_(void) {
WM_HWIN hWin;
hWin = GUI_CreateDialogBox(_aDialogCreate, GUI_COUNTOF(_aDialogCreate), _cbDialog, WM_HBKWIN, 0, 0);
return hWin;
}
When integrating in main, I used this code :
int main(void)
{
WM_HWIN wm_hwin = 0;
... Init : Hal, systemclock , HAL_TIM_Base_Init... everything that was in the demo sample
...
GUI_Init();
GUI_DispStringAt('Starting...', 0, 0);
/* Initialize LCD and LEDs */
GUI_DispStringAt('Initializing lcd...', 0, 12);
BSP_Config();
GUI_Initialized = 1;
/* Activate the use of memory device feature */
WM_SetCreateFlags(WM_CF_MEMDEV);
GUI_SetBkColor(GUI_BLACK);
GUI_Clear();
wm_hwin = CreateWindow();
/* Infinite loop */
for(;;)
{
if( wm_hwin >= 0) // this is used to control that I am using GUIbuilder screen / my function with GUI_JPEG_Draw
{
//GUI_Exec(); // Appel non bloquant
WM_Exec();
}
dispBenchmarkInfo(wm_hwin); // get from emwin the used memory
GUI_Delay(100);
}
}
Shall I allocate more memory in external SDRam ?
thanks for any help.
