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Update epdiy_epaper to make void epdiy_set_px_cb callback write directly to the framebuffer

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This commit is contained in:
martinberlin 2021-06-01 17:34:03 +02:00
parent 18350e6fd7
commit 42ae32f373
1 changed files with 11 additions and 18 deletions
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29
lvgl_tft/epdiy_epaper.cpp
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@ -22,8 +22,9 @@ void epdiy_init(void)
epd_init(EPD_OPTIONS_DEFAULT);
hl = epd_hl_init(EPD_BUILTIN_WAVEFORM);
framebuffer = epd_hl_get_framebuffer(&hl);
epd_fullclear(&hl, temperature);
epd_poweron();
//Clear all always in init?
//epd_fullclear(&hl, temperature);
}
uint16_t xo = 0;
@ -45,14 +46,6 @@ void epdiy_flush(lv_disp_drv_t *drv, const lv_area_t *area, lv_color_t *color_ma
.height = h,
};
// Debug test: Draw box x:232 y:78 w:496 h:198. Flush coords are correct:
/* EpdRect rect_area = {
.x = 232,
.y = 78,
.width = 496,
.height = 198,
};
epd_draw_rect(rect_area, 0, framebuffer); */
epd_hl_update_area(&hl, MODE_GC16, temperature, update_area); //update_area
printf("epdiy_flush %d x:%d y:%d w:%d h:%d\n", flushcalls,xo,yo,w,h);
@ -78,19 +71,19 @@ void epdiy_set_px_cb(lv_disp_drv_t * disp_drv, uint8_t* buf,
// Test using RGB232
int16_t epd_color = 255;
// Color setting use: RGB232
if ((int16_t)color.full<250) {
epd_color = (int16_t)color.full/3;
}
int16_t x1 = (int16_t)x;
int16_t y1 = (int16_t)y;
// Add offsets from last flush test. Why is drawing in wrong place?
// Bad idea: But is just writing in different area. And I don't understand why:
/* if (flushcalls>0) {
x1 = x1 + xo;
y1 = y1 + yo;
} */
epd_draw_pixel(x1, y1, epd_color, framebuffer);
//Instead of using epd_draw_pixel: Set pixel directly in buffer
//epd_draw_pixel(x1, y1, epd_color, framebuffer);
uint8_t *buf_ptr = &framebuffer[y1 * buf_w / 2 + x1 / 2];
if (x % 2) {
*buf_ptr = (*buf_ptr & 0x0F) | (epd_color & 0xF0);
} else {
*buf_ptr = (*buf_ptr & 0xF0) | (epd_color >> 4);
}
}