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Improve OnDiskGif doc; check image width

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This commit is contained in:
Dan Halbert 2023-06-22 14:24:48 -04:00
parent 0da62416a5
commit 1f2a1a6e78
2 changed files with 14 additions and 1 deletions
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6
shared-bindings/gifio/OnDiskGif.c
View File

@ -114,6 +114,12 @@
//| `displayio` expects little-endian, so the example above uses `Colorspace.RGB565_SWAPPED`.
//|
//| :param file file: The name of the GIF file.
//|
//| If the image is too large it will be cropped at the bottom and right when displayed.
//|
//| **Limitations**: The image width is limited to 320 pixels at present. `ValueError`
//| will be raised if the image is too wide. The height
//| is not limited but images that are too large will cause a memory exception.
//| """
//| ...
STATIC mp_obj_t gifio_ondiskgif_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *all_args) {

9
shared-module/gifio/OnDiskGif.c
View File

@ -169,7 +169,14 @@ void common_hal_gifio_ondiskgif_construct(gifio_ondiskgif_t *self, pyb_file_obj_
int result = GIF_init(&self->gif);
if (result != 1) {
mp_arg_error_invalid(MP_QSTR_file);
switch (self->gif.iError) {
case GIF_TOO_WIDE:
mp_raise_ValueError_varg(translate("%q must be <= %d"), MP_QSTR_width, MAX_WIDTH);
break;
default:
mp_arg_error_invalid(MP_QSTR_file);
break;
}
}
int bpp = 16;