你这太没效率了显示一行得花1秒多

[ch686]

你这太没效率了显示一行得花1秒多 我帮你改了下 这一个函数就可以显示字库里面的中英文字体了不需要写那么多：） PCToLCD2002设置列行式，逆向再放到字库就可以了 def display(self,string, x_axis, y_axis, font_size=8): if font_size == 8: self.text(string, x_axis,y_axis) return if font_size not in self._fonts: return offset = 0 for k in string: data_code = k.encode("utf-8") code = int.from_bytes(data_code, 'big', False) byte_data = self._fonts[font_size][code] if len(data_code)==3: fb= framebuf.FrameBuffer(bytearray(byte_data), font_size, font_size, framebuf.MONO_VLSB) self.blit(fb,x_axis + offset,y_axis) offset += font_size else: fb= framebuf.FrameBuffer(bytearray(byte_data), font_size//2, font_size, framebuf.MONO_VLSB) self.blit(fb,x_axis + offset,y_axis) offset += font_size//2

[jdhxyy]

可以提交修改合并到仓库中呢

[ch686]

这东西还不会用。。。修改已经上传不知道对不对

[mardini1974]

Hello, I'm testing the Library and I found it's taking a lot of time to change more than 1 second also, have you merged the addition to the library, or has anybody found a solution because I have three OLEDs this ( in total around 3 seconds to update the screens)

[mardini1974]

I found a solution for my project I need only font with 32 pixel height but it can extended further-more So I edited ascii32.py

def display(oled, string, x_axis, y_axis):
    offset = 0
    for k in string:
        byte_data = _get_ch(k)
        fb= framebuf.FrameBuffer(bytearray(byte_data), 16, 32, framebuf.MONO_VLSB)
        oled.blit(fb,x_axis + offset,y_axis)

        offset += 16

in ops.py the following method should be added

def blit(fb,x,y,key=-1, palette=None):
    global _oled
    _oled.blit(fb,x,y,key,pallette)

The font Text ascii32.txt file must be rewritten to work with framebuffer configuration I used PCtoLCD2002 depending on the outcome of the font text file you need to change in _get_ch(ch): in ascii32.py the seek command offset must be changed

def _get_ch(ch):
    global _file
    if _file is None:
        _file = open('lib/ssd1306py/ascii32fb.txt', 'r')

    _file.seek((ord(ch)) * ❗332❗)
    get_line1 = _file.readline()
    get_line2 = _file.readline()

    data = []
    n = 0
    for v in get_line1.split(','):
        data.append(int(v,16))
        n += 1
        if n == 32:
            break
    n = 0
    for v in get_line2.split(','):
        data.append(int(v,16))
        n += 1
        if n == 32:
            break
    return data

example of characters in the font text file:

0,0x00,0x00,0x00,0x80,0xC0,0xE0,0xE0,0x20,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xE0,0xF8,0xFE,0xFF,0x1F,0x03,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,#
0x00,0x00,0x1F,0xFF,0xFF,0xFF,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x03,0x0F,0x1F,0x3E,0x38,0x20,0x00,0x00,0x00,0x00,0x00,0x00,#"(",08
0x00,0x20,0xE0,0xE0,0xC0,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x03,0x1F,0xFF,0xFE,0xFC,0xE0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,#
0x00,0x00,0x00,0x00,0xC0,0xFF,0xFF,0xFF,0x1F,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x20,0x38,0x3E,0x1F,0x0F,0x03,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,#")",09
0x80,0x80,0x00,0x00,0xE0,0xE0,0xE0,0x00,0x00,0x80,0x80,0x00,0x00,0x00,0x00,0x00,0x01,0x11,0x19,0x3F,0x0F,0x07,0x0F,0x3F,0x19,0x11,0x01,0x00,0x00,0x00,0x00,0x00,#
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,#"*",10
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xC0,0xC0,0xC0,0xC0,0xC0,0xC0,0xFE,0xFE,0xFE,0xFE,0xC0,0xC0,0xC0,0xC0,0xC0,#
0x00,0x01,0x01,0x01,0x01,0x01,0x01,0x3F,0x3F,0x3F,0x3F,0x01,0x01,0x01,0x01,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,#"+",11

notice I added left zeros in the index number to make the jump equal in all characters

I'm not expert in github to merge my modifications to the original code