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Gfx_demo Alternatives
Similar projects and alternatives to gfx_demo
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TFT_eSPI
Arduino and PlatformIO IDE compatible TFT library optimised for the Raspberry Pi Pico (RP2040), STM32, ESP8266 and ESP32 that supports different driver chips
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gfx
GFX is a device independent graphics library primarily intended for IoT MCUs but not limited to that. (by codewitch-honey-crisis)
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DFRobot_GDL
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gfx_demo reviews and mentions
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GFX Library Roundup (See comments for links)
GFX Library Documentation: https://www.codeproject.com/Articles/5302085/GFX-Forever-The-Complete-Guide-to-GFX-for-IoT
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Waveshare 1.54inch (b) V2 3-color e-paper w/ GFX (see comments)
GFX is a feature rich graphics library that does jpg loading, truetype fonts, alpha blending, etc.
- GUI Design on the fly
- Latest GFX driver library roundup
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This is a shot in the dark - color dithering on the ESP32
starting at line 573 here: https://github.com/codewitch-honey-crisis/gfx_demo/blob/master/lib/gfx/include/gfx_palette.hpp
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ESP32 multi display with SD card
basically draw to a bitmap and then blt that to the display. you can do the latter asynchronously, so you can load, then display, and while displaying, load the next one. it won't help immensely, but it will speed things up slightly. In GFX you'd use draw::bitmap_async. There's full documentation linked to from the link I gave you above - look in "Properly doing asynchronous draws" https://www.codeproject.com/Articles/5302085/GFX-Forever-The-Complete-Guide-to-GFX-for-IoT
- GFX is now available as a PlatformIO library
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ESP-IDF and SPI overhead - why I've focused on targeting Arduino
I queue a variable number of transactions, either polling or non depending on context, using this code I wrote: https://github.com/codewitch-honey-crisis/gfx_demo/blob/master/src/esp-idf/drivers/common/spi_master.hpp
- I just got my waveshare 5.65 inch 7-color e-paper working with GFX!
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Dual core really faster? ESP32 versus ESP32!
In case the OP doesn't respond, I'll field your question as best as I can: You can do the rendering using a bitmap flipping algorithm along with DMA. I also know it's possible to keep the framebuffer for that display in ram, with memory left over to do bitmap flipping because I do that very thing in https://github.com/codewitch-honey-crisis/gfx_demo - that device is a Lilygo-TTGO and I have several. The above code can run on it.
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Stats
codewitch-honey-crisis/gfx_demo is an open source project licensed under GNU General Public License v3.0 or later which is an OSI approved license.
The primary programming language of gfx_demo is C.
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