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seabios
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stdvga: Rename stdvga_get_vde() to stdvga_get_vertical_size() 

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor 2024-04-01 11:27:57 -04:00
parent 549463dbc0
commit 22c9141260
3 changed files with 7 additions and 7 deletions
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8
vgasrc/stdvga.c
View File

@ -275,15 +275,15 @@ stdvga_set_character_height(u8 lines)
stdvga_crtc_mask(stdvga_get_crtc(), 0x09, 0x1f, lines - 1);
}
// Get vertical display end
// Get vertical screen size (number of horizontal lines in the display)
u16
stdvga_get_vde(void)
stdvga_get_vertical_size(void)
{
u16 crtc_addr = stdvga_get_crtc();
u16 vde = stdvga_crtc_read(crtc_addr, 0x12);
u8 ovl = stdvga_crtc_read(crtc_addr, 0x07);
vde += (((ovl & 0x02) << 7) + ((ovl & 0x40) << 3) + 1);
return vde;
vde += ((ovl & 0x02) << 7) + ((ovl & 0x40) << 3);
return vde + 1;
}
// Get offset into framebuffer accessible from real-mode 64K segment

2
vgasrc/stdvga.h
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@ -66,7 +66,7 @@ int stdvga_vram_ratio(struct vgamode_s *vmode_g);
void stdvga_set_cursor_shape(u16 cursor_type);
void stdvga_set_cursor_pos(int address);
void stdvga_set_character_height(u8 lines);
u16 stdvga_get_vde(void);
u16 stdvga_get_vertical_size(void);
int stdvga_get_window(struct vgamode_s *curmode_g, int window);
int stdvga_set_window(struct vgamode_s *curmode_g, int window, int val);
int stdvga_minimum_linelength(struct vgamode_s *vmode_g);

4
vgasrc/vgabios.c
View File

@ -138,8 +138,8 @@ set_character_height(u8 lines)
{
stdvga_set_character_height(lines);
SET_BDA(char_height, lines);
u16 vde = stdvga_get_vde();
u8 rows = vde / lines;
u16 vertical_size = stdvga_get_vertical_size();
u8 rows = vertical_size / lines;
SET_BDA(video_rows, rows - 1);
u16 cols = GET_BDA(video_cols);
SET_BDA(video_pagesize, calc_page_size(MM_TEXT, cols, rows));