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feature: lvgl performance tuning #39

Merged
merged 3 commits into from
May 22, 2023
Merged

feature: lvgl performance tuning #39

merged 3 commits into from
May 22, 2023

Commits on May 9, 2023

  1. zephyr: enable setting full_refresh bit for LVGL displays 

    Enable setting full_refresh bit for LVGL displays, which forces LVGL to
refresh the entire framebuffer on each call to display_write.

This is useful for display hardware that can directly render a framebuffer to
the display, as the LVGL buffer can now be passed directly to the
display hardware without expensive memory copies into an intermediate buffer.

Signed-off-by: Daniel DeGrasse <daniel.degrasse@nxp.com>
    @danieldegrasse
    danieldegrasse committed May 9, 2023
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  2. zephyr: allow setting LVGL rendering buffer alignment 

    Allow setting LVGL rendering buffer alignment. This is useful if the
rendering buffers will be passed directly as the framebuffer to display
hardware, which may have more restrictive alignment requirements.

Signed-off-by: Daniel DeGrasse <daniel.degrasse@nxp.com>
    @danieldegrasse
    danieldegrasse committed May 9, 2023
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  3. zephyr: allow placing LVGL rendering buffers into custom section 

    Some applications may want to locate LVGL rendering buffers in a custom
memory location, such as tightly coupled or external memory. To
facilitate this, add a Kconfig CONFIG_LV_Z_VBD_CUSTOM_SECTION, which
when set will locate the LVGL rendering buffers in a section labelled as
".lvgl_buf". This section can then be located in a custom memory region
by the application.

Signed-off-by: Daniel DeGrasse <daniel.degrasse@nxp.com>
    @danieldegrasse
    danieldegrasse committed May 9, 2023
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