/**
* @brief Copy a Camera frame buffer line in RGB565 and convert it to LCD Frame buffer line in ARGB8888 format.
* This process uses the DMA2D and its integrated Pixel Format Converter (PFC).
*/
static void CopyCameraFrameBufferLineToLcdFrameBufferLine(void)
{
if ((offset_lcd == 0) && (CameraResX <= LcdResX) && (CameraResY <= LcdResY))
{
/* If Camera resolution is lower than LCD resolution, set display in the middle of the screen */
offset_lcd = ((((LcdResY - CameraResY) / 2) * LcdResX) /* Middle of the screen on Y axis */
+ ((LcdResX - CameraResX) / 2)) /* Middle of the screen on X axis */
* sizeof(uint32_t);
}
if (display_line_counter < CameraResY)
{
if (display_line_counter < LcdResY)
{
if (CameraResX < LcdResX)
{
LCD_LL_ConvertLineToARGB8888((uint32_t *)(CAMERA_FRAME_BUFFER + offset_cam),
(uint32_t *)(LCD_FRAME_BUFFER + offset_lcd),
CameraResX);
}
else
{
LCD_LL_ConvertLineToARGB8888((uint32_t *)(CAMERA_FRAME_BUFFER + offset_cam),
(uint32_t *)(LCD_FRAME_BUFFER + offset_lcd),
LcdResX);
}
offset_cam = offset_cam + (CameraResX * sizeof(uint16_t)); /* RGB565 2 bytes per pixel */
offset_lcd = offset_lcd + (LcdResX * sizeof(uint32_t)); /* ARGB8888 4 bytes per pixel */
}
display_line_counter++;
}
else
{
offset_cam = 0;
offset_lcd = 0;
display_line_counter = 0;
}
}
/**
* @brief Line event callback.
* @param None
* @retval None
*/
void BSP_CAMERA_LineEventCallback(void)
{
static uint32_t camera_datapointer, lcd_datapointer, line_number;
if(BSP_LCD_GetYSize() > line_number)
{
LCD_LL_ConvertLineToARGB8888((uint32_t *)(CAMERA_FRAME_BUFFER + camera_datapointer), (uint32_t *)(LCD_FRAME_BUFFER + lcd_datapointer));
camera_datapointer = camera_datapointer + BSP_LCD_GetXSize() * (sizeof(uint16_t));
lcd_datapointer = lcd_datapointer + BSP_LCD_GetXSize() * (sizeof(uint32_t));
line_number++;
}
else
{
camera_datapointer = 0;
lcd_datapointer = 0;
line_number = 0;
}
}
/**
* @brief Camera line evnet callback
* @param None
* @retval None
*/
void BSP_CAMERA_LineEventCallback(void)
{
static uint32_t tmp, tmp2, counter;
if(BSP_LCD_GetYSize() > counter)
{
LCD_LL_ConvertLineToARGB8888((uint32_t *)(CAMERA_FRAME_BUFFER + tmp), (uint32_t *)(LCD_FRAME_BUFFER + tmp2));
tmp = tmp + BSP_LCD_GetXSize()*sizeof(uint16_t);
tmp2 = tmp2 + BSP_LCD_GetXSize()*sizeof(uint32_t);
counter++;
}
else
{
tmp = 0;
tmp2 = 0;
counter = 0;
}
}
/**
* @brief Line event callback.
* @param None
* @retval None
*/
void BSP_CAMERA_LineEventCallback(void)
{
static uint32_t camera_datapointer;
static uint32_t line_number;
if(line_number < CameraResY)
{
LCD_LL_ConvertLineToARGB8888((uint32_t *)(CAMERA_FRAME_BUFFER + camera_datapointer), (uint32_t *)(LCD_BG_LAYER_ADDRESS + lcd_datapointer));
camera_datapointer = camera_datapointer + (CameraResX * RGB565_BYTE_PER_PIXEL);
lcd_datapointer = lcd_datapointer + (LcdResX * ARGB8888_BYTE_PER_PIXEL);
line_number++;
}
else
{
camera_datapointer = 0;
lcd_datapointer = offset_address_area_cam_in_lcd_buffer;
line_number = 0;
}
}
