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https://github.com/AsahiLinux/m1n1
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45 lines
1 KiB
C
45 lines
1 KiB
C
/* SPDX-License-Identifier: MIT */
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#ifndef FB_H
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#define FB_H
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#include "types.h"
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typedef struct {
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u32 *ptr; /* pointer to the start of the framebuffer */
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u32 stride; /* framebuffer stride divided by four (i.e. stride in pixels) */
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u32 depth; /* framebuffer depth (i.e. bits per pixel) */
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u32 width; /* width of the framebuffer in pixels */
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u32 height; /* height of the framebuffer in pixels */
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} fb_t;
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typedef struct {
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u8 r;
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u8 g;
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u8 b;
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} rgb_t;
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extern fb_t fb;
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static inline rgb_t int2rgb(u32 c)
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{
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return (rgb_t){c >> 16, c >> 8, c};
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}
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void fb_init(void);
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void fb_shutdown(void);
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void fb_blit(u32 x, u32 y, u32 w, u32 h, void *data, u32 stride);
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void fb_unblit(u32 x, u32 y, u32 w, u32 h, void *data, u32 stride);
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void fb_fill(u32 x, u32 y, u32 w, u32 h, rgb_t color);
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void fb_clear(rgb_t color);
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void fb_display_logo(void);
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void fb_restore_logo(void);
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void fb_improve_logo(void);
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void fb_console_scroll(u32 n);
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void fb_console_reserve_lines(u32 n);
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ssize_t fb_console_write(const char *bfr, size_t len);
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#endif
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