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Diffstat (limited to 'halext/include/gdisp_fonts.h')
| -rw-r--r-- | halext/include/gdisp_fonts.h | 192 |
1 files changed, 90 insertions, 102 deletions
diff --git a/halext/include/gdisp_fonts.h b/halext/include/gdisp_fonts.h index 02fcd5f7..a271030e 100644 --- a/halext/include/gdisp_fonts.h +++ b/halext/include/gdisp_fonts.h @@ -1,102 +1,90 @@ -/* - 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 */ -/** @} */ +/*
+ 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 */
+/** @} */
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