Rockbox open source high quality audio player as a Music Player Daemon
mpris
rockbox
mpd
libadwaita
audio
rust
zig
deno
lcd: Fix 4bpp optimized 16-bit alpha blit
Fixes a bug introduced by commit 5d0c382a59 that caused graphical
corruption on anti-aliased fonts.
Change-Id: I6052ca758382bd9a1154d2e2208dee633dd17715
+3
-2
+3
-2
firmware/drivers/lcd-16bit-common.c
+3
-2
firmware/drivers/lcd-16bit-common.c
···
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if (stride_alpha) { \
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alpha_pixels = stride_alpha - alpha_pixels; \
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alpha += alpha_pixels / ALPHA_PIXELS_PER_BYTE; \
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-
alpha_data = *alpha++ ^ dmask; \
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alpha_pixels &= 1; \
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-
if (alpha_pixels) \
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+
if (alpha_pixels) { \
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alpha_data = *alpha++ ^ dmask; \
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alpha_data >>= ALPHA_BPP; \
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} \
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} \
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} while(0)
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#define READ_ALPHA() \