acid-drop

- Hacking the planet from a LilyGo T-Deck using custom firmware
git clone git://git.acid.vegas/acid-drop.git
Arduino_Canvas_Mono.cpp (1338B)
      1 #include "../Arduino_DataBus.h"
      2 #if !defined(LITTLE_FOOT_PRINT)
      3 
      4 #include "../Arduino_GFX.h"
      5 #include "Arduino_Canvas_Mono.h"
      6 
      7 Arduino_Canvas_Mono::Arduino_Canvas_Mono(int16_t w, int16_t h, Arduino_G *output, int16_t output_x, int16_t output_y)
      8     : Arduino_GFX(w, h), _output(output), _output_x(output_x), _output_y(output_y)
      9 {
     10 }
     11 
     12 bool Arduino_Canvas_Mono::begin(int32_t speed)
     13 {
     14   if (speed != GFX_SKIP_OUTPUT_BEGIN)
     15   {
     16     if (!_output->begin(speed))
     17     {
     18       return false;
     19     }
     20   }
     21 
     22   size_t s = (_width + 7) / 8 * _height;
     23 #if defined(ESP32)
     24   if (psramFound())
     25   {
     26     _framebuffer = (uint8_t *)ps_malloc(s);
     27   }
     28   else
     29   {
     30     _framebuffer = (uint8_t *)malloc(s);
     31   }
     32 #else
     33   _framebuffer = (uint8_t *)malloc(s);
     34 #endif
     35   if (!_framebuffer)
     36   {
     37     return false;
     38   }
     39 
     40   return true;
     41 }
     42 
     43 void Arduino_Canvas_Mono::writePixelPreclipped(int16_t x, int16_t y, uint16_t color)
     44 {
     45   int16_t w = (_width + 7) / 8;
     46   int32_t pos = y * w + x / 8;
     47   if (color & 0b1000010000010000)
     48   {
     49     _framebuffer[pos] |= 0x80 >> (x & 7);
     50   }
     51   else
     52   {
     53     _framebuffer[pos] &= ~(0x80 >> (x & 7));
     54   }
     55 }
     56 
     57 void Arduino_Canvas_Mono::flush()
     58 {
     59   _output->drawBitmap(_output_x, _output_y, _framebuffer, _width, _height, WHITE, BLACK);
     60 }
     61 
     62 uint8_t *Arduino_Canvas_Mono::getFramebuffer()
     63 {
     64   return _framebuffer;
     65 }
     66 
     67 #endif // !defined(LITTLE_FOOT_PRINT)