Pixelbuf: subscr: Get correct pixel value

jepler · jepler · commit 070b0dcd236f · 2020-03-16T11:15:37.000-05:00
Previously, the 0th pixel's value was always returned
diff --git a/shared-module/_pixelbuf/PixelBuf.c b/shared-module/_pixelbuf/PixelBuf.c
@@ -254,6 +254,7 @@ mp_obj_t common_hal__pixelbuf_pixelbuf_get_pixel(mp_obj_t self_in, size_t index)
     if (self->pre_brightness_buffer != NULL) {
         pixel_buffer = self->pre_brightness_buffer;
     }
+    pixel_buffer += self->byteorder.bpp * index;
 
     pixelbuf_rgbw_t *rgbw_order = &self->byteorder.byteorder;
     elems[0] = MP_OBJ_NEW_SMALL_INT(pixel_buffer[rgbw_order->r]);

Original file line number	Diff line number	Diff line change
`@@ -254,6 +254,7 @@ mp_obj_t common_hal__pixelbuf_pixelbuf_get_pixel(mp_obj_t self_in, size_t index)`
`254`	`254`	`if (self->pre_brightness_buffer != NULL) {`
`255`	`255`	`pixel_buffer = self->pre_brightness_buffer;`
`256`	`256`	`}`
	`257`	`+ pixel_buffer += self->byteorder.bpp * index;`
`257`	`258`
`258`	`259`	`pixelbuf_rgbw_t *rgbw_order = &self->byteorder.byteorder;`
`259`	`260`	`elems[0] = MP_OBJ_NEW_SMALL_INT(pixel_buffer[rgbw_order->r]);`