diff options
Diffstat (limited to 'halext/include/gdisp_fonts.h')
| -rw-r--r-- | halext/include/gdisp_fonts.h | 206 |
1 files changed, 102 insertions, 104 deletions
diff --git a/halext/include/gdisp_fonts.h b/halext/include/gdisp_fonts.h index d1cad898..02fcd5f7 100644 --- a/halext/include/gdisp_fonts.h +++ b/halext/include/gdisp_fonts.h @@ -1,104 +1,102 @@ -/*
- ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
- 2011,2012 Giovanni Di Sirio.
-
- This file is part of ChibiOS/RT.
-
- ChibiOS/RT 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/RT 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/>.
-
- ---
-
- A special exception to the GPL can be applied should you wish to distribute
- a combined work that includes ChibiOS/RT, without being obliged to provide
- the source code for any proprietary components. See the file exception.txt
- for full details of how and when the exception can be applied.
-*/
-/*
- Concepts and parts of this file have been contributed by:
- Joel Bodenmann aka Tectu -> Maintainer
- Andrew Hannam aka inmarket -> Framework
- Badger -> console implementation and FSMC
- Abhishek -> font rendering
- Ben William -> fastMath and lcdDrawEllipse()
- Dongxu Li aka dxli -> lcdDrawEllipse() filled option
-*/
-
-/**
- * @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
-
-/**
- * @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 accross 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;
- uint16_t offsetTableOffset;
- uint16_t unused1; /* ensure next field is padded to 8 byte boundary */
- uint8_t widthTable[];
- };
-
-/**
- * @brief Macro's to get to the complex parts of the font structure.
- */
-#define _getFontPart(f,o,t) ((t)(&((const uint8_t *)(f))[(o)]))
-#define _getCharWidth(f,c) (((c) < (f)->minChar || (c) > (f)->maxChar) ? 0 : (f)->widthTable[c - (f)->minChar])
-#define _getCharOffset(f,c) (_getFontPart((f), (f)->offsetTableOffset, const uint16_t *)[c - (f)->minChar])
-#define _getCharData(f,c) _getFontPart((f), _getCharOffset((f),(c)), const fontcolumn_t *)
-
-#endif /* _GDISP_FONTS_H */
-/** @} */
+/* + ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010, + 2011,2012 Giovanni Di Sirio. + + This file is part of ChibiOS/RT. + + ChibiOS/RT 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/RT 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/>. + + --- + + A special exception to the GPL can be applied should you wish to distribute + a combined work that includes ChibiOS/RT, without being obliged to provide + the source code for any proprietary components. See the file exception.txt + for full details of how and when the exception can be applied. +*/ +/* + Concepts and parts of this file have been contributed by: + Joel Bodenmann aka Tectu -> Maintainer + Andrew Hannam aka inmarket -> Framework + Badger -> console implementation and FSMC + Abhishek -> font rendering + Ben William -> fastMath and lcdDrawEllipse() + Dongxu Li aka dxli -> lcdDrawEllipse() filled option +*/ + +/** + * @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 + +/** + * @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 the basic information required for the font + * It also contains a reference to these 3 tables: + * 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) + */ +struct font { + uint8_t height; + uint8_t charPadding; + uint8_t lineSpacing; + uint8_t descenderHeight; + uint8_t minWidth; + uint8_t maxWidth; + char minChar; + char maxChar; + 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 */ +/** @} */ |