diff options
Diffstat (limited to 'ArduinoAddons/Arduino_1.6.x/hardware/marlin/avr/libraries/U8glib/utility/u8g_scale.c')
| -rwxr-xr-x | ArduinoAddons/Arduino_1.6.x/hardware/marlin/avr/libraries/U8glib/utility/u8g_scale.c | 188 |
1 files changed, 188 insertions, 0 deletions
diff --git a/ArduinoAddons/Arduino_1.6.x/hardware/marlin/avr/libraries/U8glib/utility/u8g_scale.c b/ArduinoAddons/Arduino_1.6.x/hardware/marlin/avr/libraries/U8glib/utility/u8g_scale.c new file mode 100755 index 000000000..e5b4b634f --- /dev/null +++ b/ArduinoAddons/Arduino_1.6.x/hardware/marlin/avr/libraries/U8glib/utility/u8g_scale.c @@ -0,0 +1,188 @@ +/* + + u8g_scale.c + + Universal 8bit Graphics Library + + Copyright (c) 2012, 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. + + Scale screen by some constant factors. Usefull for making bigger fonts wiht less + memory consumption + +*/ + +#include "u8g.h" + +uint8_t u8g_dev_scale_2x2_fn(u8g_t *u8g, u8g_dev_t *dev, uint8_t msg, void *arg); + + +u8g_dev_t u8g_dev_scale = { u8g_dev_scale_2x2_fn, NULL, NULL }; + +void u8g_UndoScale(u8g_t *u8g) +{ + if ( u8g->dev != &u8g_dev_scale ) + return; + u8g->dev = u8g_dev_scale.dev_mem; + u8g_UpdateDimension(u8g); +} + +void u8g_SetScale2x2(u8g_t *u8g) +{ + if ( u8g->dev != &u8g_dev_scale ) + { + u8g_dev_scale.dev_mem = u8g->dev; + u8g->dev = &u8g_dev_scale; + } + u8g_dev_scale.dev_fn = u8g_dev_scale_2x2_fn; + u8g_UpdateDimension(u8g); +} + + +uint8_t u8g_dev_scale_2x2_fn(u8g_t *u8g, u8g_dev_t *dev, uint8_t msg, void *arg) +{ + u8g_dev_t *chain = (u8g_dev_t *)(dev->dev_mem); + uint8_t pixel; + uint16_t scaled_pixel; + uint8_t i; + uint8_t dir; + u8g_uint_t x, y, xx,yy; + + switch(msg) + { + default: + return u8g_call_dev_fn(u8g, chain, msg, arg); + case U8G_DEV_MSG_GET_WIDTH: + *((u8g_uint_t *)arg) = u8g_GetWidthLL(u8g, chain) / 2; + break; + case U8G_DEV_MSG_GET_HEIGHT: + *((u8g_uint_t *)arg) = u8g_GetHeightLL(u8g, chain) / 2; + break; + case U8G_DEV_MSG_GET_PAGE_BOX: + /* get page size from next device in the chain */ + u8g_call_dev_fn(u8g, chain, msg, arg); + ((u8g_box_t *)arg)->x0 /= 2; + ((u8g_box_t *)arg)->x1 /= 2; + ((u8g_box_t *)arg)->y0 /= 2; + ((u8g_box_t *)arg)->y1 /= 2; + return 1; + case U8G_DEV_MSG_SET_PIXEL: + x = ((u8g_dev_arg_pixel_t *)arg)->x; + x *= 2; + y = ((u8g_dev_arg_pixel_t *)arg)->y; + y *= 2; + ((u8g_dev_arg_pixel_t *)arg)->x = x; + ((u8g_dev_arg_pixel_t *)arg)->y = y; + u8g_call_dev_fn(u8g, chain, msg, arg); + x++; + ((u8g_dev_arg_pixel_t *)arg)->x = x; + ((u8g_dev_arg_pixel_t *)arg)->y = y; + u8g_call_dev_fn(u8g, chain, msg, arg); + y++; + ((u8g_dev_arg_pixel_t *)arg)->x = x; + ((u8g_dev_arg_pixel_t *)arg)->y = y; + u8g_call_dev_fn(u8g, chain, msg, arg); + x--; + ((u8g_dev_arg_pixel_t *)arg)->x = x; + ((u8g_dev_arg_pixel_t *)arg)->y = y; + u8g_call_dev_fn(u8g, chain, msg, arg); + break; + case U8G_DEV_MSG_SET_8PIXEL: + pixel = ((u8g_dev_arg_pixel_t *)arg)->pixel; + dir = ((u8g_dev_arg_pixel_t *)arg)->dir; + scaled_pixel = 0; + for( i = 0; i < 8; i++ ) + { + scaled_pixel<<=2; + if ( pixel & 128 ) + { + scaled_pixel |= 3; + } + pixel<<=1; + } + x = ((u8g_dev_arg_pixel_t *)arg)->x; + x *= 2; + xx = x; + y = ((u8g_dev_arg_pixel_t *)arg)->y; + y *= 2; + yy = y; + if ( ((u8g_dev_arg_pixel_t *)arg)->dir & 1 ) + { + xx++; + } + else + { + yy++; + } + + ((u8g_dev_arg_pixel_t *)arg)->pixel = scaled_pixel>>8; + ((u8g_dev_arg_pixel_t *)arg)->x = x; + ((u8g_dev_arg_pixel_t *)arg)->y = y; + ((u8g_dev_arg_pixel_t *)arg)->dir = dir; + u8g_call_dev_fn(u8g, chain, msg, arg); + + + ((u8g_dev_arg_pixel_t *)arg)->x = xx; + ((u8g_dev_arg_pixel_t *)arg)->y = yy; + ((u8g_dev_arg_pixel_t *)arg)->dir = dir; + u8g_call_dev_fn(u8g, chain, msg, arg); + + ((u8g_dev_arg_pixel_t *)arg)->pixel = scaled_pixel&255; + //((u8g_dev_arg_pixel_t *)arg)->pixel = 0x00; + switch(dir) + { + case 0: + x+=8; + xx+=8; + break; + case 1: + y+=8; + yy+=8; + break; + case 2: + x-=8; + xx-=8; + break; + case 3: + y-=8; + yy-=8; + break; + } + ((u8g_dev_arg_pixel_t *)arg)->x = x; + ((u8g_dev_arg_pixel_t *)arg)->y = y; + ((u8g_dev_arg_pixel_t *)arg)->dir = dir; + u8g_call_dev_fn(u8g, chain, msg, arg); + + ((u8g_dev_arg_pixel_t *)arg)->x = xx; + ((u8g_dev_arg_pixel_t *)arg)->y = yy; + ((u8g_dev_arg_pixel_t *)arg)->dir = dir; + u8g_call_dev_fn(u8g, chain, msg, arg); + break; + } + return 1; +} + |