44 lines
968 B
C
44 lines
968 B
C
#ifndef __VGAFB_H
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#define __VGAFB_H
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// Graphics pixel operations.
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struct gfx_op {
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struct vgamode_s *curmode_g;
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u32 linelength;
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u32 displaystart;
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u8 op;
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u16 x, y;
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u8 pixels[8];
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u16 xlen, ylen;
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u16 srcy;
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};
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#define GO_READ8 1
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#define GO_WRITE8 2
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#define GO_MEMSET 3
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#define GO_MEMMOVE 4
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struct cursorpos {
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u8 x, y, page, pad;
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};
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struct carattr {
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u8 car, attr, use_attr, pad;
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};
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// vgafb.c
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void memcpy_high(void *dest, void *src, u32 len);
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void init_gfx_op(struct gfx_op *op, struct vgamode_s *curmode_g);
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void handle_gfx_op(struct gfx_op *op);
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void *text_address(struct cursorpos cp);
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void vgafb_scroll(struct cursorpos win, struct cursorpos winsize
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, int lines, struct carattr ca);
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void vgafb_write_char(struct cursorpos cp, struct carattr ca);
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struct carattr vgafb_read_char(struct cursorpos cp);
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void vgafb_write_pixel(u8 color, u16 x, u16 y);
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u8 vgafb_read_pixel(u16 x, u16 y);
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#endif // vgafb.h
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