zener/lvgl_esp32_drivers
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epdiy V7 made a bit faster

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This commit is contained in:
martinberlin 2023-08-26 12:23:37 +02:00
parent 87bf29d676
commit 9445dab325
4 changed files with 19 additions and 108 deletions
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24
lvgl_tft/epdiy_epaper.cpp
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@ -3,7 +3,6 @@
#include "freertos/task.h"
#include "epdiy_epaper.h"
#include "epdiy.h"
//#include "epd_highlevel.h"
EpdiyHighlevelState hl;
uint16_t flushcalls = 0;
@ -21,17 +20,16 @@ void epdiy_init(void)
// This will print an error if unsupported. In this case,
// set VCOM using the hardware potentiometer and delete this line.
epd_set_vcom(1760);
// Only for older versions epdiy
//epd_init(EPD_OPTIONS_DEFAULT);
hl = epd_hl_init(EPD_BUILTIN_WAVEFORM);
framebuffer = epd_hl_get_framebuffer(&hl);
epd_poweron();
//Clear all always in init:
//Clear all display in initialization to remove any ghosts
epd_fullclear(&hl, temperature);
}
/* Suggested by @kisvegabor https://forum.lvgl.io/t/lvgl-port-to-be-used-with-epaper-displays/5630/26 */
/* Suggested by @kisvegabor https://forum.lvgl.io/t/lvgl-port-to-be-used-with-epaper-displays/5630/26
* @deprecated
*/
void buf_area_to_framebuffer(const lv_area_t *area, const uint8_t *image_data) {
assert(framebuffer != NULL);
uint8_t *fb_ptr = &framebuffer[area->y1 * epd_width() / 2 + area->x1 / 2];
@ -48,8 +46,7 @@ void buf_copy_to_framebuffer(EpdRect image_area, const uint8_t *image_data) {
assert(framebuffer != NULL);
for (uint32_t i = 0; i < image_area.width * image_area.height; i++) {
uint8_t val = (i % 2) ? (image_data[i / 2] & 0xF0) >> 4
: image_data[i / 2] & 0x0F;
uint8_t val = (i % 2) ? (image_data[i / 2] & 0xF0) >> 4 : image_data[i / 2] & 0x0F;
int xx = image_area.x + i % image_area.width;
if (xx < 0 || xx >= epd_width()) {
continue;
@ -83,17 +80,14 @@ void epdiy_flush(lv_disp_drv_t *drv, const lv_area_t *area, lv_color_t *color_ma
uint8_t* buf = (uint8_t *) color_map;
// Buffer debug
/*
for (int index=0; index<400; index++) {
/* for (int index=0; index<400; index++) {
printf("%x ", buf[index]);
} */
// UNCOMMENT only one of this options
// SAFE Option with EPDiy copy of epd_copy_to_framebuffer
buf_copy_to_framebuffer(update_area, buf);
// This is the slower version that works good without leaving any white line
//buf_copy_to_framebuffer(update_area, buf);
//Faster mode suggested in LVGL forum (Leaves ghosting&prints bad sections / experimental) NOTE: Do NOT use in production
//buf_area_to_framebuffer(area, buf);
buf_area_to_framebuffer(area, buf);
epd_hl_update_area(&hl, updateMode, temperature, update_area); //update_area