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Fix Palette grayscale for EInk.

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It needs to do the bitmasking that was only added to ColorConverter
in #3611
This commit is contained in:
Scott Shawcroft 2020-11-18 16:28:21 -08:00
parent 8ac9b176c9
commit 2463a6d6ac
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GPG Key ID: 0DFD512649C052DA
1 changed files with 2 additions and 1 deletions
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3
shared-module/displayio/Palette.c
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@ -83,7 +83,8 @@ bool displayio_palette_get_color(displayio_palette_t *self, const _displayio_col
uint8_t pixel_hue = self->colors[palette_index].hue;
displayio_colorconverter_compute_tricolor(colorspace, pixel_hue, luma, color);
} else if (colorspace->grayscale) {
*color = self->colors[palette_index].luma >> (8 - colorspace->depth);
size_t bitmask = (1 << colorspace->depth) - 1;
*color = (self->colors[palette_index].luma >> colorspace->grayscale_bit) & bitmask;
} else {
uint16_t packed = self->colors[palette_index].rgb565;
if (colorspace->reverse_bytes_in_word) {