tfaour
1dd02da70a
Vendors two small MIT/BSD-3-Clause libraries rather than hand-rolling either: Nayuki's qrcodegen (QR matrix generation) and Waveshare's Font24 bitmap table from their e-Paper repo (same repo the epd7in3e driver came from) for rendering readable text on the panel. qr_onboarding_show() builds a standard WIFI:T:WPA;S:...;P:...;; payload, rasterizes the QR module matrix plus the SSID and password as plaintext underneath (for anyone provisioning from a device that can't scan a QR) onto a malloc'd frame buffer, and pushes it to the panel via epd_display_buffer(). The buffer is heap-allocated on demand rather than statically reserved, since 192KB held permanently in BSS would eat into the RAM budget the HTTP fetch path (task 6) is specifically trying to keep free. Wired into wifi_provisioning_start() before the softAP comes up, so the join instructions are already on-screen by the time the network is joinable.
98 lines
3.1 KiB
C
98 lines
3.1 KiB
C
/**
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******************************************************************************
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* @file fonts.h
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* @author MCD Application Team
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* @version V1.0.0
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* @date 18-February-2014
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* @brief Header for fonts.c file
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******************************************************************************
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* @attention
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*
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* <h2><center>© COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. Neither the name of STMicroelectronics nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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******************************************************************************
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*/
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/* Define to prevent recursive inclusion -------------------------------------*/
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#ifndef __FONTS_H
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#define __FONTS_H
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/*最大字体微软雅黑24 (32x41) */
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#define MAX_HEIGHT_FONT 41
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#define MAX_WIDTH_FONT 32
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#define OFFSET_BITMAP
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* Includes ------------------------------------------------------------------*/
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#include <stdint.h>
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//ASCII
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typedef struct _tFont
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{
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const uint8_t *table;
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uint16_t Width;
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uint16_t Height;
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} sFONT;
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//GB2312
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typedef struct // 汉字字模数据结构
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{
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const char index[2]; // 汉字内码索引
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const char matrix[MAX_HEIGHT_FONT*MAX_WIDTH_FONT/8+2]; // 点阵码数据
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}CH_CN;
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typedef struct
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{
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const CH_CN *table;
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uint16_t size;
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uint16_t ASCII_Width;
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uint16_t Width;
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uint16_t Height;
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}cFONT;
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extern sFONT Font24;
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extern sFONT Font20;
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extern sFONT Font16;
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extern sFONT Font12;
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extern sFONT Font8;
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extern cFONT Font12CN;
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extern cFONT Font24CN;
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#ifdef __cplusplus
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}
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#endif
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#endif /* __FONTS_H */
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/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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