102 lines
3.0 KiB
C
102 lines
3.0 KiB
C
/*!
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*****************************************************************************
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** file canvas_font.h
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**
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** version 2015-04-25 14:58 unknow -> v1.0
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** 2016-04-25 16:21 heyong -> v2.0
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**
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** brief the font operations api define.
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**
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** attention THIS SAMPLE CODE IS PROVIDED AS IS. GOKE MICROELECTRONICS
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** ACCEPTS NO RESPONSIBILITY OR LIABILITY FOR ANY ERRORS OR
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** OMMISSIONS
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**
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** (C) Copyright 2016-2020 BY GOKE MICROELECTRONICS CO.,LTD
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**
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*****************************************************************************
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*/
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#ifndef _OSD_FONT_H_
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#define _OSD_FONT_H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include "canvas.h"
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#define CANVAS_FONT_DIR "./common/font/fnt"
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typedef enum font_size_ {
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FONT_SIZE_16 = (16),
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FONT_SIZE_20 = (20),
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FONT_SIZE_24 = (24),
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FONT_SIZE_32 = (32),
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FONT_SIZE_40 = (40),
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FONT_SIZE_48 = (48),
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FONT_SIZE_56 = (56),
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FONT_SIZE_64 = (64),
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}font_size_e;
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#define RGB_PIXEL_FILL(_pixel, _a, _r, _g, _b) \
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do{\
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_pixel.alpha = (_a), _pixel.red = (_r), _pixel.green = (_g), _pixel.blue = (_b);\
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}while(0)
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typedef unsigned int text_style_t;
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#define TEXT_STYLE_FOREGROUND_TRANSPARENT (1<<0)
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#define TEXT_STYLE_FOREGROUND_WHRITE (1<<1)
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#define TEXT_STYLE_FOREGROUND_BLACK (1<<2)
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#define TEXT_STYLE_FOREGROUND_RED (1<<3)
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#define TEXT_STYLE_BACKGROUND_TRANSPARENT (1<<4)
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#define TEXT_STYLE_BACKGROUND_WHRITE (1<<5)
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#define TEXT_STYLE_BACKGROUND_BLACK (1<<6)
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#define TEXT_STYLE_ENCLOSED_TRANSPARENT (1<<8)
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#define TEXT_STYLE_ENCLOSED_WHRITE (1<<9)
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#define TEXT_STYLE_ENCLOSED_BLACK (1<<10)
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#define TEXT_STYLE_ENCLOSED_ENABLE (1<<12)
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#define TEXT_STYLE_FOREGROUND_BIT_AREA 0x0007
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#define TEXT_STYLE_BACKGROUND_BIT_AREA 0x0070
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#define TEXT_STYLE_ENCLOSED_BIT_AREA 0x0700
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#define TEXT_STYLE_DEFAULT \
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(TEXT_STYLE_FOREGROUND_WHRITE\
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|TEXT_STYLE_BACKGROUND_TRANSPARENT\
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|TEXT_STYLE_ENCLOSED_BLACK)
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void canvas_font_set_alpha(unsigned char alpha);
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int canvas_font_available(font_size_e font_size);
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int canvas_font_load(font_size_e font_size, const char* asc_font, const char* gb2312_font);
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int canvas_font_init();
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void canvas_font_deinit();
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/*!
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*******************************************************************************
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** brief load font to canvas.
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**
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** param[in] canvas the point of dest canvas.
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** param[in] x canvas x start address.
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** param[in] y canvas y start address.
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** param[in] font_size the current font size.
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** param[in] text the point of text.
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** param[in] style font style.
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**
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** return
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** - #>=0 , successed, and return the write put size.
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** - #<0 , failed.
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**
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*******************************************************************************
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*/
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int canvas_fill_text(canvas_t *canvas, int x, int y, const char *text,
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font_size_e font_size, text_style_t style);
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int canvas_get_fill_text_width(canvas_t *canvas, const char *text, int font_size);
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#ifdef __cplusplus
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};
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#endif
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#endif /* _OSD_FONT_H_ */
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