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https://github.com/espressif/esp-idf.git
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150466f598
- Remove the EXAMPLE_LCD_IMAGE_SOURCE Kconfig option (embedded binary vs
file system) and always load images from LittleFS.
- Convert the PNG images into LZ4-compressed LVGL binary images (.bin)
at
build time using LVGLImage.py, and flash them to a LittleFS partition.
- Upgrade lvgl to 9.6.0 and add the espressif/lz4 component; link the
external LZ4 library into lvgl.
- Split the example: main.c focuses on the esp_lcd i80 API, while the
LVGL
porting (lvgl_port.c) and the UI (lvgl_demo_ui.c) live in separate
files.
- Rework the demo animation to use the LVGL animation engine (lv_anim)
with
easing paths instead of a manual software timer for smoother
rendering.
- Remove the embedded C image arrays (esp_logo.c, esp_text.c) and the
obsolete sdkconfig.ci.image_in_{bin,fs} variants.
42 lines
1.4 KiB
Plaintext
42 lines
1.4 KiB
Plaintext
CONFIG_LV_CONF_SKIP=y
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CONFIG_FREERTOS_HZ=1000
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# Use ESP-IDF / newlib for heap and libc primitives instead of LVGL's copies.
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CONFIG_LV_USE_CLIB_MALLOC=y
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CONFIG_LV_USE_CLIB_STRING=y
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CONFIG_LV_USE_CLIB_SPRINTF=y
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# Match the 16-bit RGB565 panel and the flush callback in lvgl_port.c.
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CONFIG_LV_COLOR_DEPTH_16=y
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# Style property cache: 8 bytes per widget, fewer style lookups per refresh.
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CONFIG_LV_OBJ_STYLE_CACHE=y
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# Cache decoded image headers so LittleFS files are not re-probed every frame.
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CONFIG_LV_IMAGE_HEADER_CACHE_DEF_CNT=4
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# Do not compile LVGL's own examples/demos into this firmware.
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CONFIG_LV_BUILD_EXAMPLES=n
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CONFIG_LV_BUILD_DEMOS=n
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CONFIG_LV_USE_OBSERVER=y
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CONFIG_LV_USE_SYSMON=y
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CONFIG_LV_USE_PERF_MONITOR=y
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# Use the custom partition table which reserves a LittleFS "storage" partition
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CONFIG_PARTITION_TABLE_CUSTOM=y
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# Enable LVGL's POSIX file system interface so images can be loaded from LittleFS
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# use 'S' (83 in ASCII) as drive letter for POSIX FS
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CONFIG_LV_USE_FS_POSIX=y
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CONFIG_LV_FS_POSIX_LETTER=83
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# Enable LZ4 image decompression. Use the external espressif/lz4 library instead
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# of LVGL's built-in copy. The external library is pulled automatically via the lvgl/idf_component.yml.
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CONFIG_LV_USE_LZ4=y
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CONFIG_LV_USE_LZ4_INTERNAL=n
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# Compressed .bin images cannot be decoded line-by-line; the decoder must load
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# and decompress the whole image into RAM.
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CONFIG_LV_BIN_DECODER_RAM_LOAD=y
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