GK SDK 源码库: XMIPCLinuxV100R005C00SPC030 (kernel/tools/open_source excluded)

2026-09-06 03:52:57 +08:00
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+/*!
+*****************************************************************************
+** file        canvas_font.h
+**
+** version     2015-04-25 14:58 unknow -> v1.0
+**             2016-04-25 16:21 heyong -> v2.0
+**
+** brief       the font operations api define.
+**
+** attention   THIS SAMPLE CODE IS PROVIDED AS IS. GOKE MICROELECTRONICS
+**              ACCEPTS NO RESPONSIBILITY OR LIABILITY FOR ANY ERRORS OR
+**              OMMISSIONS
+**
+** (C) Copyright 2016-2020 BY GOKE MICROELECTRONICS CO.,LTD
+**
+*****************************************************************************
+*/
+#ifndef _OSD_FONT_H_
+#define _OSD_FONT_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "canvas.h"
+
+#define CANVAS_FONT_DIR "./common/font/fnt"
+
+typedef enum font_size_ {
+	FONT_SIZE_16 = (16),
+	FONT_SIZE_20 = (20),
+	FONT_SIZE_24 = (24),
+	FONT_SIZE_32 = (32),
+	FONT_SIZE_40 = (40),
+	FONT_SIZE_48 = (48),
+	FONT_SIZE_56 = (56),
+	FONT_SIZE_64 = (64),
+}font_size_e;
+
+#define RGB_PIXEL_FILL(_pixel, _a, _r, _g, _b) \
+	do{\
+		_pixel.alpha = (_a), _pixel.red = (_r), _pixel.green = (_g), _pixel.blue = (_b);\
+	}while(0)
+
+typedef unsigned int text_style_t;
+
+#define TEXT_STYLE_FOREGROUND_TRANSPARENT (1<<0)
+#define TEXT_STYLE_FOREGROUND_WHRITE      (1<<1)
+#define TEXT_STYLE_FOREGROUND_BLACK       (1<<2)
+#define TEXT_STYLE_FOREGROUND_RED         (1<<3)
+#define TEXT_STYLE_BACKGROUND_TRANSPARENT (1<<4)
+#define TEXT_STYLE_BACKGROUND_WHRITE      (1<<5)
+#define TEXT_STYLE_BACKGROUND_BLACK       (1<<6)
+#define TEXT_STYLE_ENCLOSED_TRANSPARENT   (1<<8)
+#define TEXT_STYLE_ENCLOSED_WHRITE        (1<<9)
+#define TEXT_STYLE_ENCLOSED_BLACK         (1<<10)
+
+#define TEXT_STYLE_ENCLOSED_ENABLE        (1<<12)
+#define TEXT_STYLE_FOREGROUND_BIT_AREA    0x0007
+#define TEXT_STYLE_BACKGROUND_BIT_AREA    0x0070
+#define TEXT_STYLE_ENCLOSED_BIT_AREA      0x0700
+
+#define TEXT_STYLE_DEFAULT \
+		(TEXT_STYLE_FOREGROUND_WHRITE\
+		|TEXT_STYLE_BACKGROUND_TRANSPARENT\
+		|TEXT_STYLE_ENCLOSED_BLACK)
+
+void canvas_font_set_alpha(unsigned char alpha);
+int canvas_font_available(font_size_e font_size);
+
+int canvas_font_load(font_size_e font_size, const char* asc_font, const char* gb2312_font);
+
+int canvas_font_init();
+void canvas_font_deinit();
+
+/*!
+*******************************************************************************
+** brief load font to canvas.
+**
+** param[in]  canvas    the point of dest canvas.
+** param[in]  x         canvas x start address.
+** param[in]  y         canvas y start address.
+** param[in]  font_size the current font size.
+** param[in]  text      the point of text.
+** param[in]  style     font style.
+**
+** return
+** - #>=0 , successed, and return the write put size.
+** - #<0  , failed.
+**
+*******************************************************************************
+*/
+int canvas_fill_text(canvas_t *canvas, int x, int y, const char *text,
+                            font_size_e font_size, text_style_t style);
+int canvas_get_fill_text_width(canvas_t *canvas, const char *text, int font_size);
+
+#ifdef __cplusplus
+};
+#endif
+#endif /* _OSD_FONT_H_ */
+