更改 sant 任意尺寸图像显示由C完成，加快处理速度

boards/default_src/micropython_esp32s3/origin/build/lib/st7789_cf.py

@@ -37,35 +37,12 @@ class ST7789(uframebuf.FrameBuffer_Uincode):
     def display(self, data=None, x=None, y=None, rotation=0, sync=True):
         if type(data) is str:
             data = Image.open(data, rotation)
-        self._blit(data, x, y)
+        self.blit_rgb565(data.image, data.width, data.height, x, y)
         if sync: self.show()
 
     def screenshot(self):
         return IMG(memoryview(self._buffer), self.width, self.height)
 
-    def _blit(self, img, x=None, y=None):
-        '''考虑后期封装C模块，加快速度'''
-        if img.width == self.width and img.height == self.height:
-            self._buffer[:] = img.image
-        #大于屏幕图像
-        elif img.width >= self.width and img.height >= self.height:
-            _x = ((img.width - self.width) // 2) if x is None else max(0, min(x, img.width - self.width))
-            _y = ((img.height - self.height) // 2) if y is None else max(0, min(y, img.height - self.height))
-            for line in range(self.height):
-                src_pos =  ((_y + line) * img.width + _x) * 2
-                dst_pos = line * self.width * 2
-                self._buffer[dst_pos:dst_pos + self.width * 2] = img.image[src_pos:src_pos + self.width * 2]
-        #小于屏幕图像
-        elif img.width <= self.width and img.height <= self.height:
-            _x = ((self.width - img.width) // 2) if x is None else max(0, min(x, self.width - img.width))
-            _y = ((self.height- img.height) // 2) if y is None else max(0, min(y, self.height - img.width))
-            for line in range(img.height):
-                src_pos = line * img.width * 2
-                dst_pos = ((_y + line) * self.width + _x) * 2
-                self._buffer[dst_pos:dst_pos + img.width * 2] = img.image[src_pos:src_pos + img.width * 2]
-        else:
-            raise ValueError("Unsupported image size for display")
-
     def _write(self, cmd, dat=None):
         self.dc.off()
         self.spi.write(bytearray([cmd]))