jd_output()

int fl::third_party::TJpg_Decoder::jd_output ( JDEC * jdec, void * bitmap, JRECT * jrect )

static

Definition at line 108 of file TJpg_Decoder.cpp.hpp.

{
  // Retrieve instance pointer from JDEC device context
  TJpg_Decoder *thisPtr = static_cast<TJpg_Decoder*>(jdec->device);
 
  // Check if we have a valid thisPtr
  if (!thisPtr) {
    return 0; // Indicate failure
  }
 
  // Check if we have a callback function
  if (!thisPtr->tft_output) {
    return 0; // Indicate failure
  }
 
  // Retrieve rendering parameters and add any offset
  int16_t  x = jrect->left + thisPtr->jpeg_x;
  int16_t  y = jrect->top  + thisPtr->jpeg_y;
  uint16_t w = jrect->right  + 1 - jrect->left;
  uint16_t h = jrect->bottom + 1 - jrect->top;
 
  // Pass the image block and rendering parameters in a callback to the sketch
  return thisPtr->tft_output(x, y, w, h, (uint16_t*)bitmap);
}

References TJpg_Decoder(), FL_NOEXCEPT, jpeg_x, jpeg_y, tft_output, fl::x, and fl::y.

Referenced by drawJpg().

Here is the call graph for this function:

Here is the caller graph for this function: