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🆕 double buffer
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@ -8,12 +8,14 @@
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#include "../process/spinlock.h"
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#include <driver/uart/uart.h>
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#include <driver/video/video.h>
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//#include "linkage.h"
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struct screen_info pos;
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ul VBE_FB_phys_addr; // 由bootloader传来的帧缓存区的物理地址
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struct printk_screen_info pos;
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extern ul VBE_FB_phys_addr; // 由bootloader传来的帧缓存区的物理地址
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static spinlock_t printk_lock;
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static bool sw_show_scroll_animation = false; // 显示换行动画的开关
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int calculate_max_charNum(int len, int size)
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{
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@ -78,7 +80,8 @@ int printk_init(const int char_size_x, const int char_size_y)
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cls();
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kdebug("width=%d\theight=%d", pos.width, pos.height);
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// 由于此时系统并未启用双缓冲,因此关闭滚动动画
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printk_disable_animation();
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return 0;
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}
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@ -128,7 +131,7 @@ void auto_newline()
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#endif
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pos.y = pos.max_y;
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int lines_to_scroll = 1;
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scroll(true, lines_to_scroll * pos.char_size_y, false);
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scroll(true, lines_to_scroll * pos.char_size_y, sw_show_scroll_animation);
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pos.y -= (lines_to_scroll - 1);
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}
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}
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@ -674,8 +677,7 @@ static void putchar(uint *fb, int Xsize, int x, int y, unsigned int FRcolor, uns
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int printk_color(unsigned int FRcolor, unsigned int BKcolor, const char *fmt, ...)
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{
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uint64_t rflags = 0; // 加锁后rflags存储到这里
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uint64_t rflags = 0; // 加锁后rflags存储到这里
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spin_lock_irqsave(&printk_lock, rflags);
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va_list args;
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@ -768,7 +770,6 @@ int do_scroll(bool direction, int pixels)
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*/
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// @todo: 修复用户态触发键盘中断时产生#UD错误
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// @todo:采用双缓冲区
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int scroll(bool direction, int pixels, bool animation)
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{
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// 暂时不支持反方向滚动
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@ -788,7 +789,7 @@ int scroll(bool direction, int pixels, bool animation)
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if (pixels > 10)
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steps = 5;
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else
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steps = pixels % 5;
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steps = pixels % 10;
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int half_steps = steps / 2;
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// 计算加速度
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@ -834,7 +835,7 @@ int scroll(bool direction, int pixels, bool animation)
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do_scroll(direction, delta_x);
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}
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}
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return 0;
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}
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@ -850,15 +851,6 @@ int cls()
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return 0;
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}
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/**
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* @brief 获取VBE帧缓存区的物理地址
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*
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*/
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ul get_VBE_FB_phys_addr()
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{
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return VBE_FB_phys_addr;
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}
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/**
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* @brief 获取VBE帧缓冲区长度
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*/
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@ -879,4 +871,21 @@ void set_pos_VBE_FB_addr(uint *virt_addr)
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uint *get_pos_VBE_FB_addr()
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{
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return pos.FB_address;
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}
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/**
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* @brief 使能滚动动画
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*
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*/
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void printk_enable_animation()
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{
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sw_show_scroll_animation = true;
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}
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/**
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* @brief 禁用滚动动画
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*
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*/
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void printk_disable_animation()
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{
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sw_show_scroll_animation = false;
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}
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