A tiny drawing library. include line draw and bitmap-font draw.bitmap-font is from linux-kernel-source.
tinydraw.h@4:68c16070d1db, 2010-11-06 (annotated)
- Committer:
- tosihisa
- Date:
- Sat Nov 06 12:34:54 2010 +0000
- Revision:
- 4:68c16070d1db
- Parent:
- 3:c861edfe5dc1
Update comment(not changed code)
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User | Revision | Line number | New contents of line |
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tosihisa | 3:c861edfe5dc1 | 1 | /** Tiny library of drawing in framebuffer |
tosihisa | 3:c861edfe5dc1 | 2 | * |
tosihisa | 0:b49309b1b9d3 | 3 | * @section LICENSE |
tosihisa | 0:b49309b1b9d3 | 4 | * This source code is "GPLv2" license. |
tosihisa | 0:b49309b1b9d3 | 5 | * The original of the font image is Linux kernel source. |
tosihisa | 0:b49309b1b9d3 | 6 | * Because the Linux kernel license is "GPLv2 with the exception articles", |
tosihisa | 0:b49309b1b9d3 | 7 | * this program also applies GPLv2. |
tosihisa | 0:b49309b1b9d3 | 8 | * |
tosihisa | 0:b49309b1b9d3 | 9 | * Copyright (C) 2010 tosihisa |
tosihisa | 0:b49309b1b9d3 | 10 | * |
tosihisa | 0:b49309b1b9d3 | 11 | * @section DESCRIPTION |
tosihisa | 0:b49309b1b9d3 | 12 | * Tiny library of drawing in framebuffer |
tosihisa | 0:b49309b1b9d3 | 13 | * |
tosihisa | 0:b49309b1b9d3 | 14 | */ |
tosihisa | 0:b49309b1b9d3 | 15 | |
tosihisa | 0:b49309b1b9d3 | 16 | #ifndef __TINYDRAW_H /* { */ |
tosihisa | 0:b49309b1b9d3 | 17 | #define __TINYDRAW_H |
tosihisa | 0:b49309b1b9d3 | 18 | |
tosihisa | 0:b49309b1b9d3 | 19 | #include "linuxfont/linuxfont.h" |
tosihisa | 0:b49309b1b9d3 | 20 | |
tosihisa | 4:68c16070d1db | 21 | /** FrameBuffer(VRAM) X(Width) size */ |
tosihisa | 0:b49309b1b9d3 | 22 | #define TD_X_MAX (128) |
tosihisa | 4:68c16070d1db | 23 | /** FrameBuffer(VRAM) Y(Width) size */ |
tosihisa | 0:b49309b1b9d3 | 24 | #define TD_Y_MAX (64) |
tosihisa | 0:b49309b1b9d3 | 25 | |
tosihisa | 4:68c16070d1db | 26 | /** X/Y coordinate range type */ |
tosihisa | 0:b49309b1b9d3 | 27 | typedef short TD_XY_t; |
tosihisa | 0:b49309b1b9d3 | 28 | |
tosihisa | 4:68c16070d1db | 29 | /* X/Y coordinate type */ |
tosihisa | 0:b49309b1b9d3 | 30 | typedef struct td_point_s { |
tosihisa | 0:b49309b1b9d3 | 31 | TD_XY_t x; |
tosihisa | 0:b49309b1b9d3 | 32 | TD_XY_t y; |
tosihisa | 0:b49309b1b9d3 | 33 | } TD_POINT_t; |
tosihisa | 0:b49309b1b9d3 | 34 | |
tosihisa | 4:68c16070d1db | 35 | /** color type */ |
tosihisa | 0:b49309b1b9d3 | 36 | typedef unsigned char TD_COLOR_t; |
tosihisa | 0:b49309b1b9d3 | 37 | |
tosihisa | 4:68c16070d1db | 38 | /** color type (foreground and background pair) */ |
tosihisa | 0:b49309b1b9d3 | 39 | typedef struct td_color_pair_s { |
tosihisa | 4:68c16070d1db | 40 | TD_COLOR_t fore; /**< foreground */ |
tosihisa | 4:68c16070d1db | 41 | TD_COLOR_t back; /**< background */ |
tosihisa | 0:b49309b1b9d3 | 42 | } TD_COLOR_PAIR_t; |
tosihisa | 0:b49309b1b9d3 | 43 | |
tosihisa | 3:c861edfe5dc1 | 44 | /** |
tosihisa | 3:c861edfe5dc1 | 45 | * Tiny library of drawing in framebuffer |
tosihisa | 3:c861edfe5dc1 | 46 | */ |
tosihisa | 0:b49309b1b9d3 | 47 | class TinyDraw { |
tosihisa | 0:b49309b1b9d3 | 48 | public: |
tosihisa | 0:b49309b1b9d3 | 49 | /** |
tosihisa | 0:b49309b1b9d3 | 50 | * The frame buffer is cleared by 0. |
tosihisa | 0:b49309b1b9d3 | 51 | * |
tosihisa | 0:b49309b1b9d3 | 52 | * @param none. |
tosihisa | 0:b49309b1b9d3 | 53 | * @return none. |
tosihisa | 0:b49309b1b9d3 | 54 | */ |
tosihisa | 0:b49309b1b9d3 | 55 | void clear(void); |
tosihisa | 0:b49309b1b9d3 | 56 | |
tosihisa | 0:b49309b1b9d3 | 57 | /** |
tosihisa | 0:b49309b1b9d3 | 58 | * The dot is drawn in specified coordinates by the specified color code. |
tosihisa | 0:b49309b1b9d3 | 59 | * |
tosihisa | 0:b49309b1b9d3 | 60 | * @param x [in] X coordinates |
tosihisa | 0:b49309b1b9d3 | 61 | * @param y [in] Y coordinates |
tosihisa | 0:b49309b1b9d3 | 62 | * @param fcol [in] Color-code (0 or 1 or COL_TRANS). |
tosihisa | 0:b49309b1b9d3 | 63 | * @return none. |
tosihisa | 0:b49309b1b9d3 | 64 | */ |
tosihisa | 0:b49309b1b9d3 | 65 | void drawPoint(TD_XY_t x,TD_XY_t y,TD_COLOR_t fcol); |
tosihisa | 0:b49309b1b9d3 | 66 | |
tosihisa | 0:b49309b1b9d3 | 67 | /** |
tosihisa | 0:b49309b1b9d3 | 68 | * It draws in the line. |
tosihisa | 0:b49309b1b9d3 | 69 | * |
tosihisa | 0:b49309b1b9d3 | 70 | * @param p1 [in] point of start. |
tosihisa | 0:b49309b1b9d3 | 71 | * @param p2 [in] point of end. |
tosihisa | 0:b49309b1b9d3 | 72 | * @param col [in] Color-code (now only use 'fore'). |
tosihisa | 0:b49309b1b9d3 | 73 | * @return none. |
tosihisa | 0:b49309b1b9d3 | 74 | */ |
tosihisa | 0:b49309b1b9d3 | 75 | void drawLine(TD_POINT_t *p1,TD_POINT_t *p2,TD_COLOR_PAIR_t *col); |
tosihisa | 0:b49309b1b9d3 | 76 | |
tosihisa | 0:b49309b1b9d3 | 77 | /** |
tosihisa | 0:b49309b1b9d3 | 78 | * It draws in the character. |
tosihisa | 0:b49309b1b9d3 | 79 | * |
tosihisa | 0:b49309b1b9d3 | 80 | * @param pnt [in] point of draw (upper left corner of font) |
tosihisa | 0:b49309b1b9d3 | 81 | * @param c [in] character code(only use ASCII-CODE now) |
tosihisa | 0:b49309b1b9d3 | 82 | * @param col [in] Color-code. |
tosihisa | 0:b49309b1b9d3 | 83 | * @param fontdesc [in] font-descriptor. |
tosihisa | 0:b49309b1b9d3 | 84 | * @return none. |
tosihisa | 0:b49309b1b9d3 | 85 | */ |
tosihisa | 0:b49309b1b9d3 | 86 | void drawChar(TD_POINT_t *pnt,int c,TD_COLOR_PAIR_t *col,const struct font_desc *fontdesc); |
tosihisa | 0:b49309b1b9d3 | 87 | |
tosihisa | 0:b49309b1b9d3 | 88 | /** |
tosihisa | 0:b49309b1b9d3 | 89 | * It draws in the string. |
tosihisa | 0:b49309b1b9d3 | 90 | * |
tosihisa | 0:b49309b1b9d3 | 91 | * @param pnt [in] point of draw (upper left corner of font) |
tosihisa | 0:b49309b1b9d3 | 92 | * @param str [in] string (only use ASCII-CODE now) |
tosihisa | 0:b49309b1b9d3 | 93 | * @param col [in] Color-code. |
tosihisa | 0:b49309b1b9d3 | 94 | * @param fontdesc [in] font-descriptor. |
tosihisa | 0:b49309b1b9d3 | 95 | * @return none. |
tosihisa | 0:b49309b1b9d3 | 96 | */ |
tosihisa | 0:b49309b1b9d3 | 97 | void drawStr(TD_POINT_t *pnt,char *str,TD_COLOR_PAIR_t *col,const struct font_desc *fontdesc); |
tosihisa | 0:b49309b1b9d3 | 98 | |
tosihisa | 0:b49309b1b9d3 | 99 | /** |
tosihisa | 0:b49309b1b9d3 | 100 | * Get the bit map image of the font. |
tosihisa | 0:b49309b1b9d3 | 101 | * |
tosihisa | 0:b49309b1b9d3 | 102 | * @param c [in] character code(only use ASCII-CODE now) |
tosihisa | 0:b49309b1b9d3 | 103 | * @param fontdesc [in] font-descriptor. |
tosihisa | 0:b49309b1b9d3 | 104 | * @return pointer for bit map image. |
tosihisa | 0:b49309b1b9d3 | 105 | */ |
tosihisa | 0:b49309b1b9d3 | 106 | char *getCharImage(int c,const struct font_desc *fontdesc); |
tosihisa | 0:b49309b1b9d3 | 107 | |
tosihisa | 0:b49309b1b9d3 | 108 | /** |
tosihisa | 0:b49309b1b9d3 | 109 | * Get the framebuffer pointer. |
tosihisa | 0:b49309b1b9d3 | 110 | * |
tosihisa | 0:b49309b1b9d3 | 111 | * @param pnt [in] Coordinates. |
tosihisa | 0:b49309b1b9d3 | 112 | * @return pointer for framebuffer. |
tosihisa | 0:b49309b1b9d3 | 113 | */ |
tosihisa | 0:b49309b1b9d3 | 114 | TD_COLOR_t *getVRAMPtr(TD_POINT_t *pnt); |
tosihisa | 0:b49309b1b9d3 | 115 | |
tosihisa | 0:b49309b1b9d3 | 116 | /** |
tosihisa | 0:b49309b1b9d3 | 117 | * Get the top of framebuffer pointer. |
tosihisa | 0:b49309b1b9d3 | 118 | * |
tosihisa | 0:b49309b1b9d3 | 119 | * @param none. |
tosihisa | 0:b49309b1b9d3 | 120 | * @return pointer for top of framebuffer. |
tosihisa | 0:b49309b1b9d3 | 121 | */ |
tosihisa | 0:b49309b1b9d3 | 122 | TD_COLOR_t *getVRAMPtr(void); |
tosihisa | 0:b49309b1b9d3 | 123 | |
tosihisa | 0:b49309b1b9d3 | 124 | static const int X_MAX = TD_X_MAX; |
tosihisa | 0:b49309b1b9d3 | 125 | static const int Y_MAX = TD_Y_MAX; |
tosihisa | 0:b49309b1b9d3 | 126 | static const TD_COLOR_t COL_TRANS = 0x80; |
tosihisa | 0:b49309b1b9d3 | 127 | |
tosihisa | 0:b49309b1b9d3 | 128 | private: |
tosihisa | 0:b49309b1b9d3 | 129 | TD_XY_t calcAbs(TD_XY_t v); |
tosihisa | 0:b49309b1b9d3 | 130 | TD_XY_t calcMin(TD_XY_t v1,TD_XY_t v2); |
tosihisa | 0:b49309b1b9d3 | 131 | int checkSign(TD_XY_t v); |
tosihisa | 0:b49309b1b9d3 | 132 | |
tosihisa | 0:b49309b1b9d3 | 133 | TD_COLOR_t VRAM[(TD_X_MAX * TD_Y_MAX * sizeof(TD_COLOR_t))/8]; |
tosihisa | 0:b49309b1b9d3 | 134 | }; |
tosihisa | 0:b49309b1b9d3 | 135 | |
tosihisa | 0:b49309b1b9d3 | 136 | #endif /* __TINYDRAW_H } */ |
tosihisa | 0:b49309b1b9d3 | 137 |