fix: NemaGFX requires word-aligned buffers - #3
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NemaGFX buffers (src and dst) must be word-aligned. This commit introduces a two-line change, to ensure all LVGL memory buffers (including (static) image buffers) are word-aligned. Otherwise, you might get funny colors if your images do not start on word-boundary. Ref: lvgl/lvgl#9975
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AndreCostaaa
approved these changes
Apr 23, 2026
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NemaGFX buffers (src and dst) must be word-aligned.
This commit introduces a two-line change, to ensure all LVGL memory buffers (including (static) image buffers) are word-aligned.
Otherwise, you might get funny colors if your images do not start on word-boundary.
Ref: lvgl/lvgl#9975
Summary by cubic
Align all LVGL buffers to 4 bytes to satisfy NemaGFX and prevent color glitches with misaligned images. Sets
LV_ATTRIBUTE_MEM_ALIGN_SIZEto 4 and definesLV_ATTRIBUTE_MEM_ALIGNas__attribute__((aligned(LV_ATTRIBUTE_MEM_ALIGN_SIZE)))so image and display buffers are word-aligned.Written for commit 59d37c2. Summary will update on new commits.