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feat: set color, show char

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This commit is contained in:
liuyihui 2023-04-27 02:09:34 +08:00
parent c6a568272f
commit 4573e7f17d
2 changed files with 64 additions and 14 deletions
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11
include/tftlcd.h
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@ -105,7 +105,10 @@ typedef unsigned char uchar;
void LCD_RESET();
void LCD_Init();
void LCD_S_XY(uint16_t x, uint16_t y);
void LCD_S_Rec(uint16_t xs, uint16_t xe, uint16_t ys, uint16_t ye);
void LCD_D_Point(uint16_t x, uint16_t y, uint16_t color);
void LCD_Clear(uint16_t color);
void LCD_SetColor(uint16_t color);
void LCD_SetBackColor(uint16_t color);
void LCD_SetXY(uint16_t x, uint16_t y);
void LCD_SetRec(uint16_t xs, uint16_t xe, uint16_t ys, uint16_t ye);
void LCD_DrawPoint(uint16_t x, uint16_t y, uint16_t color);
void LCD_Clear(uint16_t color);
void LCD_ShowChar(uint16_t x, uint16_t y, uint8_t num, uint8_t size, uint8_t mode);

67
src/tftlcd.c
View File

@ -1,9 +1,10 @@
#include "font.h"
#include "systick.h"
#include "tftlcd.h"
// 画笔颜色 背景颜色
unsigned int POINT_COLOR = 0x0000, BACK_COLOR = 0xFFFF;
unsigned int DeviceCode;
uint16_t PEN_COLOR = 0x0000; // 画笔颜色
uint16_t BACK_COLOR = 0xFFFF; // 背景颜色
uint16_t DeviceCode; // 设备模式
void LCD_RESET() {
LCD_RST_CLR;
@ -204,16 +205,20 @@ void LCD_Init() {
LCD_WR_REG(0x29); // Display on
LCD_BL_CLR; // Back Light On
LCD_Clear(WHITE);
LCD_Clear(BACK_COLOR);
}
void LCD_S_XY(uint16_t x, uint16_t y) {
void LCD_SetColor(uint16_t color) { PEN_COLOR = color; }
void LCD_SetBackColor(uint16_t color) { BACK_COLOR = color; }
void LCD_SetXY(uint16_t x, uint16_t y) {
LCD_WR_REG_DATA_16BIT(LCD_PAGE_WR, x);
LCD_WR_REG_DATA_16BIT(LCD_COL_WR, y);
}
// Set a rectangle area
void LCD_S_Rec(uint16_t xs, uint16_t xe, uint16_t ys, uint16_t ye) {
void LCD_SetRec(uint16_t xs, uint16_t xe, uint16_t ys, uint16_t ye) {
LCD_WR_REG(LCD_PAGE_WR);
LCD_WR_DATA_16BIT(xs);
LCD_WR_DATA_16BIT(xe);
@ -223,18 +228,60 @@ void LCD_S_Rec(uint16_t xs, uint16_t xe, uint16_t ys, uint16_t ye) {
LCD_WR_DATA_16BIT(ye);
}
void LCD_D_Point(uint16_t x, uint16_t y, uint16_t color) {
LCD_S_XY(x, y);
void LCD_DrawPoint(uint16_t x, uint16_t y, uint16_t color) {
LCD_SetXY(x, y);
LCD_WR_REG_DATA_16BIT(LCD_RAM_WR, color);
}
void LCD_Clear(uint16_t color) {
LCD_S_Rec(0, LCD_W - 1, 0, LCD_H - 1);
LCD_SetRec(0, LCD_W - 1, 0, LCD_H - 1);
LCD_WR_REG(LCD_RAM_WR);
for (uint32_t i = 0; i < LCD_W * LCD_H; i++) LCD_WR_DATA_16BIT(color);
// for (uint16_t i = 0; i < LCD_W; i++)
// for (uint16_t j = 0; j < LCD_H; j++) {
// LCD_S_XY(i, j);
// LCD_SetXY(i, j);
// LCD_WR_REG_DATA_16BIT(LCD_RAM_WR, color);
// }
}
/*
@brief Display a charactor on the position of (x,y)
@param x x of the lower left of the character
@param y y of the lower left of the character
@param sign the charactor
@param size size of the charactor, 12x06 or 16x08
@param mode 0: non-overlap, 1: overlap
*/
void LCD_ShowChar(uint16_t x, uint16_t y, uint8_t sign, uint8_t size, uint8_t mode) {
if (x > LCD_W || y > LCD_H) return;
uchar tmp;
uint16_t x0 = x;
const uchar *font;
if (size == 12) font = &asc2_1206[0][0];
else font = &asc2_1608[0][0];
sign = sign - ' ';
if (!mode) { // non-overlap
for (uint16_t px = 0; px < size; px++) {
tmp = font[sign * size + px];
for (uint16_t py = 0; py < size / 2; py++) {
if (tmp & 0x01) LCD_DrawPoint(x, y, PEN_COLOR);
else LCD_DrawPoint(x, y, BACK_COLOR);
tmp >>= 1;
x++;
}
x = x0;
y++;
}
} else // overlap
{
for (uint16_t px = 0; px < size; px++) {
tmp = font[sign * size + px];
for (uint16_t py = 0; py < size / 2; py++) {
if (tmp & 0x01) LCD_DrawPoint(x + py, y + px, PEN_COLOR);
tmp >>= 1;
}
}
}
}