diff --git a/Libraries/u8glib/u8g_bitmap.c b/Libraries/u8glib/u8g_bitmap.c new file mode 100644 --- /dev/null +++ b/Libraries/u8glib/u8g_bitmap.c @@ -0,0 +1,177 @@ +/* + + u8g_bitmap.c + + Universal 8bit Graphics Library + + Copyright (c) 2011, olikraus@gmail.com + All rights reserved. + + Redistribution and use in source and binary forms, with or without modification, + are permitted provided that the following conditions are met: + + * Redistributions of source code must retain the above copyright notice, this list + of conditions and the following disclaimer. + + * Redistributions in binary form must reproduce the above copyright notice, this + list of conditions and the following disclaimer in the documentation and/or other + materials provided with the distribution. + + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND + CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, + INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR + CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF + ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + + +*/ + +#include "u8g.h" + +void u8g_DrawHBitmap(u8g_t *u8g, u8g_uint_t x, u8g_uint_t y, u8g_uint_t cnt, const uint8_t *bitmap) +{ + while( cnt > 0 ) + { + u8g_Draw8Pixel(u8g, x, y, 0, *bitmap); + bitmap++; + cnt--; + x+=8; + } +} + +void u8g_DrawBitmap(u8g_t *u8g, u8g_uint_t x, u8g_uint_t y, u8g_uint_t cnt, u8g_uint_t h, const uint8_t *bitmap) +{ + if ( u8g_IsBBXIntersection(u8g, x, y, cnt*8, h) == 0 ) + return; + while( h > 0 ) + { + u8g_DrawHBitmap(u8g, x, y, cnt, bitmap); + bitmap += cnt; + y++; + h--; + } +} + + +void u8g_DrawHBitmapP(u8g_t *u8g, u8g_uint_t x, u8g_uint_t y, u8g_uint_t cnt, const u8g_pgm_uint8_t *bitmap) +{ + while( cnt > 0 ) + { + u8g_Draw8Pixel(u8g, x, y, 0, u8g_pgm_read(bitmap)); + bitmap++; + cnt--; + x+=8; + } +} + +void u8g_DrawBitmapP(u8g_t *u8g, u8g_uint_t x, u8g_uint_t y, u8g_uint_t cnt, u8g_uint_t h, const u8g_pgm_uint8_t *bitmap) +{ + if ( u8g_IsBBXIntersection(u8g, x, y, cnt*8, h) == 0 ) + return; + while( h > 0 ) + { + u8g_DrawHBitmapP(u8g, x, y, cnt, bitmap); + bitmap += cnt; + y++; + h--; + } +} + +/*=========================================================================*/ + +static void u8g_DrawHXBM(u8g_t *u8g, u8g_uint_t x, u8g_uint_t y, u8g_uint_t w, const uint8_t *bitmap) +{ + uint8_t d; + x+=7; + while( w >= 8 ) + { + u8g_Draw8Pixel(u8g, x, y, 2, *bitmap); + bitmap++; + w-= 8; + x+=8; + } + if ( w > 0 ) + { + d = *bitmap; + x -= 7; + do + { + if ( d & 1 ) + u8g_DrawPixel(u8g, x, y); + x++; + w--; + d >>= 1; + } while ( w > 0 ); + } +} + +void u8g_DrawXBM(u8g_t *u8g, u8g_uint_t x, u8g_uint_t y, u8g_uint_t w, u8g_uint_t h, const uint8_t *bitmap) +{ + u8g_uint_t b; + b = w; + b += 7; + b >>= 3; + + if ( u8g_IsBBXIntersection(u8g, x, y, w, h) == 0 ) + return; + + while( h > 0 ) + { + u8g_DrawHXBM(u8g, x, y, w, bitmap); + bitmap += b; + y++; + h--; + } +} + +static void u8g_DrawHXBMP(u8g_t *u8g, u8g_uint_t x, u8g_uint_t y, u8g_uint_t w, const u8g_pgm_uint8_t *bitmap) +{ + uint8_t d; + x+=7; + while( w >= 8 ) + { + u8g_Draw8Pixel(u8g, x, y, 2, u8g_pgm_read(bitmap)); + bitmap++; + w-= 8; + x+=8; + } + if ( w > 0 ) + { + d = u8g_pgm_read(bitmap); + x -= 7; + do + { + if ( d & 1 ) + u8g_DrawPixel(u8g, x, y); + x++; + w--; + d >>= 1; + } while ( w > 0 ); + } +} + +void u8g_DrawXBMP(u8g_t *u8g, u8g_uint_t x, u8g_uint_t y, u8g_uint_t w, u8g_uint_t h, const u8g_pgm_uint8_t *bitmap) +{ + u8g_uint_t b; + b = w; + b += 7; + b >>= 3; + + if ( u8g_IsBBXIntersection(u8g, x, y, w, h) == 0 ) + return; + while( h > 0 ) + { + u8g_DrawHXBMP(u8g, x, y, w, bitmap); + bitmap += b; + y++; + h--; + } +}