comparison: components/u8g2/csrc/u8g2_cleardisplay.c
components/u8g2/csrc/u8g2_cleardisplay.c
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- 88d965579617
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| -1:000000000000 | 0:88d965579617 |
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| 1 /* | |
| 2 | |
| 3 u8g2_cleardisplay.c | |
| 4 | |
| 5 Universal 8bit Graphics Library (https://github.com/olikraus/u8g2/) | |
| 6 | |
| 7 Copyright (c) 2016, olikraus@gmail.com | |
| 8 All rights reserved. | |
| 9 | |
| 10 Redistribution and use in source and binary forms, with or without modification, | |
| 11 are permitted provided that the following conditions are met: | |
| 12 | |
| 13 * Redistributions of source code must retain the above copyright notice, this list | |
| 14 of conditions and the following disclaimer. | |
| 15 | |
| 16 * Redistributions in binary form must reproduce the above copyright notice, this | |
| 17 list of conditions and the following disclaimer in the documentation and/or other | |
| 18 materials provided with the distribution. | |
| 19 | |
| 20 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND | |
| 21 CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, | |
| 22 INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF | |
| 23 MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | |
| 24 DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR | |
| 25 CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 26 SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |
| 27 NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |
| 28 LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER | |
| 29 CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | |
| 30 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
| 31 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF | |
| 32 ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 33 | |
| 34 */ | |
| 35 #include "u8g2.h" | |
| 36 | |
| 37 /* Clear screen buffer & display reliable for all u8g2 displays. */ | |
| 38 /* This is done with u8g2 picture loop, because we can not use the u8x8 function in all cases */ | |
| 39 void u8g2_ClearDisplay(u8g2_t *u8g2) | |
| 40 { | |
| 41 u8g2_FirstPage(u8g2); | |
| 42 do { | |
| 43 } while ( u8g2_NextPage(u8g2) ); | |
| 44 /* | |
| 45 This function is usually called during startup (u8g2.begin()). | |
| 46 However the user might want to use full buffer mode with clear and | |
| 47 send commands. | |
| 48 This will not work because the current tile row is modified by the picture | |
| 49 loop above. To fix this, reset the tile row to 0, issue #370 | |
| 50 A workaround would be, that the user sets the current tile row to 0 manually. | |
| 51 */ | |
| 52 u8g2_SetBufferCurrTileRow(u8g2, 0); | |
| 53 } | |
| 54 |
