f4b63ebaf4
Scaled fonts (independantly in x & y direction) based on normal sized font. Effectively double sized and double height same width fonts come free (or triple etc). New routine for sending low level drivers hardware commands eg backlight brightness, contrast Power and Orientation moved to new routine. Clean up on files to simplify low level driver file overheads.
90 lines
2.9 KiB
C
90 lines
2.9 KiB
C
/*
|
|
ChibiOS/RT - Copyright (C) 2012
|
|
Joel Bodenmann aka Tectu <joel@unormal.org>
|
|
|
|
This file is part of ChibiOS-LCD-Driver.
|
|
|
|
ChibiOS-LCD-Driver is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
ChibiOS-LCD-Driver is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
/**
|
|
* @file gdisp_fonts.h
|
|
* @brief GDISP internal font definitions.
|
|
* @details This is not generally needed by an application. It is used
|
|
* by the low level drivers that need to understand a font.
|
|
*
|
|
* @addtogroup GDISP
|
|
* @{
|
|
*/
|
|
|
|
#ifndef _GDISP_FONTS_H
|
|
#define _GDISP_FONTS_H
|
|
|
|
/* Don't test against HAL_USE_GDISP as we may want to use this in other non-GDISP utilities. */
|
|
|
|
/**
|
|
* @brief The maximum height of a font.
|
|
* @details Either 16 or 32. Defaults to 16
|
|
* @note Setting this to 32 causes the font tables to take
|
|
* twice the internal program memory.
|
|
*/
|
|
#ifndef GDISP_MAX_FONT_HEIGHT
|
|
#define GDISP_MAX_FONT_HEIGHT 16
|
|
#endif
|
|
|
|
/**
|
|
* @brief The type of a font column.
|
|
* @note Set by defining @p GDISP_MAX_FNT_HEIGHT appropriately.
|
|
*/
|
|
#if GDISP_MAX_FONT_HEIGHT == 16
|
|
typedef uint16_t fontcolumn_t;
|
|
#elif GDISP_MAX_FONT_HEIGHT == 32
|
|
typedef uint32_t fontcolumn_t;
|
|
#else
|
|
#error "GDISP: GDISP_MAX_FONT_HEIGHT must be either 16 or 32"
|
|
#endif
|
|
|
|
/**
|
|
* @brief Internal font structure.
|
|
* @note This structure is followed by:
|
|
* 1. An array of character widths (uint8_t)
|
|
* 2. An array of column data offsets (relative to the font structure)
|
|
* 3. Each characters array of column data (fontcolumn_t)
|
|
* Each sub-structure must be padded to a multiple of 8 bytes
|
|
* to allow the tables to work across many different compilers.
|
|
*/
|
|
struct font {
|
|
uint8_t height;
|
|
uint8_t charPadding;
|
|
uint8_t lineSpacing;
|
|
uint8_t descenderHeight;
|
|
uint8_t minWidth;
|
|
uint8_t maxWidth;
|
|
char minChar;
|
|
char maxChar;
|
|
uint8_t xscale;
|
|
uint8_t yscale;
|
|
const uint8_t *widthTable;
|
|
const uint16_t *offsetTable;
|
|
const fontcolumn_t *dataTable;
|
|
};
|
|
|
|
/**
|
|
* @brief Macro's to get to the complex parts of the font structure.
|
|
*/
|
|
#define _getCharWidth(f,c) (((c) < (f)->minChar || (c) > (f)->maxChar) ? 0 : (f)->widthTable[(c) - (f)->minChar])
|
|
#define _getCharOffset(f,c) ((f)->offsetTable[(c) - (f)->minChar])
|
|
#define _getCharData(f,c) (&(f)->dataTable[_getCharOffset(f, c)])
|
|
|
|
#endif /* _GDISP_FONTS_H */
|
|
/** @} */
|