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Line 71... Line 71...
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    abs (T x)
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    abs (T x)
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    {
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    {
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      return x < 0 ? -x : x;
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      return x < 0 ? -x : x;
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    }
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    }
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 - 
 
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 - 
 
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}
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}
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// provided to allow a destructor to destroy something not deleted
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// provided to allow a destructor to destroy something not deleted
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// this is only OK because destructors shouldnt be needed
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// this is only OK because destructors shouldnt be needed
- 
 
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void
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void operator delete(void * data, unsigned int f)
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operator delete (void *data, unsigned int f)
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 {
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{
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   (void)data;
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  (void) data;
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   (void)f;
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  (void) f;
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 }
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}
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// provided to implement an "error handler" on pure virtual
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// provided to implement an "error handler" on pure virtual
- 
 
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extern "C" void
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extern "C" void __cxa_pure_virtual()
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__cxa_pure_virtual ()
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{
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{
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  while(1);
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  while (1)
- 
 
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    ;
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}
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}
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display_t::display_t (int const width, int const height, int const ramwidth,
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display_t::display_t (int const width, int const height, int const ramwidth,
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                      uint8_t *const data) :
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                      uint8_t *const data) :
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    m_width (width), m_height (height), m_ramwidth (ramwidth), m_cursor_x (0), m_cursor_y (
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    m_width (width), m_height (height), m_ramwidth (ramwidth), m_cursor_x (0), m_cursor_y (
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        0), m_rotation (0), m_data (data)
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        0), m_rotation (0), m_data (data)
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{
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{
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}
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}
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display_t::~display_t()
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display_t::~display_t ()
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{
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{
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}
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}
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void
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void
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}
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}
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// clear everything
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// clear everything
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void
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void
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display_t::clearDisplay (void)
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display_t::clearDisplay (colour_t colour)
- 
 
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{
- 
 
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  memset (m_data, colour == WHITE ? 255 : 0, dataSize (m_width, m_height));
- 
 
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}
- 
 
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- 
 
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void display_t::drawRectangle (int16_t x1, int16_t y1, int16_t x2, int16_t y2,
- 
 
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                          colour_t color)
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{
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{
- 
 
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  for (int16_t x = x1; x <= x2; x++)
- 
 
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    for (int16_t y = y1; y < y2; y++)
- 
 
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      {
- 
 
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        switch (color)
- 
 
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          {
- 
 
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          case BLACK:
- 
 
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            m_data[x + (y / 8) * m_width] &= ~(1 << (y & 7));
- 
 
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            break;
- 
 
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- 
 
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          default:
- 
 
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          case WHITE:
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  memset (m_data, 0, dataSize (m_width, m_height));
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            m_data[x + (y / 8) * m_width] |= (1 << (y & 7));
- 
 
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            break;
- 
 
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- 
 
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          case INVERT:
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            m_data[x + (y / 8) * m_width] ^= (1 << (y & 7));
- 
 
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            break;
- 
 
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          }
- 
 
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      }
377 
}
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}
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/* using Bresenham draw algorithm */
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/* using Bresenham draw algorithm */
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void
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void
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display_t::drawLine (int16_t x1, int16_t y1, int16_t x2, int16_t y2,
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display_t::drawLine (int16_t x1, int16_t y1, int16_t x2, int16_t y2,