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Code Issues Releases Wiki Activity

🐛 修复了printk在输出\t时，背景颜色不正确的bug，以及屏幕滚动的bug

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This commit is contained in:
fslongjin 2022-03-16 23:45:01 +08:00
parent 832442af6a
commit f95fa63972
1 changed files with 10 additions and 7 deletions
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17
kernel/common/printk.c
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@ -51,7 +51,7 @@ int printk_init(const int char_size_x, const int char_size_y)
ul *tmp1;
// 初始化2M物理页
for (ul i = 0; i < (pos.FB_length<<2); i += PAGE_2M_SIZE)
for (ul i = 0; i < (pos.FB_length << 2); i += PAGE_2M_SIZE)
{
// 计算当前2M物理页对应的pdt的页表项的物理地址
tmp1 = phys_2_virt((ul *)(*tmp & (~0xfffUL)) + (((fb_virt_addr + i) >> PAGE_2M_SHIFT) & 0x1ff));
@ -69,9 +69,9 @@ int printk_init(const int char_size_x, const int char_size_y)
kdebug("width=%d\theight=%d", pos.width, pos.height);
while(1)
while (1)
return 0;
return 0;
}
int set_printk_pos(const int x, const int y)
@ -114,7 +114,7 @@ void auto_newline()
pos.y = pos.max_y;
int lines_to_scroll = 2;
scroll(true, lines_to_scroll * pos.char_size_y, false);
pos.y -= lines_to_scroll;
pos.y -= (lines_to_scroll-1);
}
}
@ -674,7 +674,7 @@ int printk_color(unsigned int FRcolor, unsigned int BKcolor, const char *fmt, ..
while (space_to_print--)
{
putchar(pos.FB_address, pos.width, pos.x * pos.char_size_x, pos.y * pos.char_size_y, BLACK, BLACK, ' ');
putchar(pos.FB_address, pos.width, pos.x * pos.char_size_x, pos.y * pos.char_size_y, FRcolor, BKcolor, ' ');
++pos.x;
auto_newline();
@ -723,6 +723,9 @@ int do_scroll(bool direction, int pixels)
memcpy(pos.FB_address, (pos.FB_address + src), sizeof(unsigned int) * (pos.FB_length - src));
memset(pos.FB_address + (pos.FB_length - src), 0, sizeof(unsigned int) * (src));
for (int i = 0; i < 1000; ++i)
for (int j = 0; j < 1000; ++j)
;
return 0;
}
else
@ -811,7 +814,7 @@ int scroll(bool direction, int pixels, bool animation)
*/
int cls()
{
memset(pos.FB_address, BLACK, pos.FB_length*sizeof(unsigned int));
memset(pos.FB_address, BLACK, pos.FB_length * sizeof(unsigned int));
pos.x = 0;
pos.y = 0;
return 0;
@ -843,7 +846,7 @@ void set_pos_VBE_FB_addr(uint *virt_addr)
pos.FB_address = (uint *)virt_addr;
}
uint* get_pos_VBE_FB_addr()
uint *get_pos_VBE_FB_addr()
{
return pos.FB_address;
}