DragonOS/kernel/lib/libUI/textui-render.c

155 lines
4.7 KiB
C

#include "textui.h"
#include <driver/uart/uart.h>
#define WHITE 0x00ffffff //白
#define BLACK 0x00000000 //黑
#define RED 0x00ff0000 //红
#define ORANGE 0x00ff8000 //橙
#define YELLOW 0x00ffff00 //黄
#define GREEN 0x0000ff00 //绿
#define BLUE 0x000000ff //蓝
#define INDIGO 0x0000ffff //靛
#define PURPLE 0x008000ff //紫
// 根据rgb计算出最终的颜色值
#define calculate_color(r, g, b) ((((r & 0xff) << 16) | ((g & 0xff) << 8) | (b & 0xff)) & 0x00ffffff)
extern struct scm_ui_framework_t textui_framework;
static void __textui_render_chromatic(uint16_t actual_line, uint16_t index, struct textui_char_chromatic_t *character);
/**
* @brief 重新渲染整个虚拟行
*
* @param window 窗口结构体
* @param vline_id 虚拟行号
* @return int 错误码
*/
int textui_refresh_vline(struct textui_window_t *window, uint16_t vline_id)
{
if (textui_is_chromatic(window->flags))
return textui_refresh_characters(window, vline_id, 0, window->chars_per_line);
else
return textui_refresh_characters(window, vline_id, 0, window->chars_per_line);
}
int textui_refresh_vlines(struct textui_window_t *window, uint16_t start, uint16_t count)
{
char bufff[16] = {0};
// uart_send_str(COM1, " BEGIN ");
for (int i = start; i < window->vlines_num && count > 0; ++i, --count)
{
// sprintk(bufff, "[ 1fresh: %d ] ", i);
// uart_send_str(COM1, bufff);
textui_refresh_vline(window, i);
}
start = 0;
while (count>0)
{
// sprintk(bufff, "[ 2fresh: %d ] ", start);
// uart_send_str(COM1, bufff);
// sprintk(bufff, " index=%d ", (window->vlines.chromatic)[start].index);
// uart_send_str(COM1, bufff);
textui_refresh_vline(window, start);
++start;
--count;
}
// uart_send_str(COM1, " END ");
return 0;
}
/**
* @brief 刷新某个虚拟行的连续n个字符对象
*
* @param window 窗口结构体
* @param vline_id 虚拟行号
* @param start 起始字符号
* @param count 要刷新的字符数量
* @return int 错误码
*/
int textui_refresh_characters(struct textui_window_t *window, uint16_t vline_id, uint16_t start, uint16_t count)
{
if (window->id != __textui_get_current_window_id())
return 0;
// 判断虚拟行参数是否合法
if (unlikely(vline_id >= window->vlines_num && (start + count) > window->chars_per_line))
return -EINVAL;
// 计算虚拟行对应的真实行
int actual_line_id = (int)vline_id - window->top_vline;
if (actual_line_id < 0)
actual_line_id += __textui_get_actual_lines();
// 判断真实行id是否合理
if (unlikely(actual_line_id < 0 || actual_line_id >= __textui_get_actual_lines()))
return 0;
// 若是彩色像素模式
if (textui_is_chromatic(window->flags))
{
struct textui_vline_chromatic_t *vline = &(window->vlines.chromatic)[vline_id];
for (int i = 0; i < count; ++i)
{
__textui_render_chromatic(actual_line_id, start + i, &vline->chars[start + i]);
}
}
return 0;
}
/**
* @brief 渲染彩色字符
*
* @param actual_line 真实行的行号
* @param index 列号
* @param character 要渲染的字符
*/
static void __textui_render_chromatic(uint16_t actual_line, uint16_t index, struct textui_char_chromatic_t *character)
{
/**
* @brief 在屏幕上指定位置打印字符
*
* @param x 左上角列像素点位置
* @param y 左上角行像素点位置
* @param FRcolor 字体颜色
* @param BKcolor 背景颜色
* @param font 字符的bitmap
*/
// #if DEBUG
// uart_send(COM1, font);
// #endif
unsigned char *font_ptr = font_ascii[(uint8_t)character->c];
unsigned int *addr;
uint32_t *fb = (uint32_t *)textui_framework.buf->vaddr;
// uint32_t FRcolor = YELLOW;
uint32_t FRcolor = calculate_color(character->Fr, character->Fg, character->Fb);
// uint32_t BKcolor = BLACK;
uint32_t BKcolor = calculate_color(character->Br, character->Bg, character->Bb);
uint32_t x = index * TEXTUI_CHAR_WIDTH;
uint32_t y = actual_line * TEXTUI_CHAR_HEIGHT;
int testbit; // 用来测试某位是背景还是字体本身
for (int i = 0; i < TEXTUI_CHAR_HEIGHT; ++i)
{
// 计算出帧缓冲区的地址
addr = (uint32_t *)(fb + textui_framework.buf->width * (y + i) + x);
testbit = (1 << (TEXTUI_CHAR_WIDTH + 1));
for (int j = 0; j < TEXTUI_CHAR_WIDTH; ++j)
{
// 从左往右逐个测试相应位
testbit >>= 1;
if (*font_ptr & testbit)
*addr = FRcolor; // 字,显示前景色
else
*addr = BKcolor; // 背景色
++addr;
}
++font_ptr;
}
}