github-code/lvgl
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

feat(draw): add gradient dithering support (#2872)

Browse Source 
* Add dithering to gradients

* Add support for 8x8 matrix for ordered dithering

* Fix CI errors

* Try error diffusion on vertical gradient too

* Vertical error diffusion dithering

* Add support for runtime based dithering mode selection (from none, ordered, error diffusion).

* Reduce the binary size of the code by sharing the dithering table when appropriate.

* Fix CI

* Fix CI

* Review corrections

* Fix union mapping

* Revert bg_color changes

* Fix for keeping bg_color in the API.

* Fix after review

* Add support for setting multiple stops per gradient in the style API

* Let's make an example

Co-authored-by: Gabor Kiss-Vamosi <kisvegabor@gmail.com>
This commit is contained in:
X-Ryl669
2022-01-11 12:38:30 +01:00
committed by GitHub
parent 89389d3c96
commit 6617385f8a
25 changed files with 980 additions and 82 deletions
Download Patch File Download Diff File Expand all files Collapse all files

18
src/core/lv_obj_draw.c
View File

@@ -58,11 +58,19 @@ void lv_obj_init_draw_rect_dsc(lv_obj_t * obj, uint32_t part, lv_draw_rect_dsc_t
draw_dsc->bg_opa = lv_obj_get_style_bg_opa(obj, part);
if(draw_dsc->bg_opa > LV_OPA_MIN) {
draw_dsc->bg_color = lv_obj_get_style_bg_color_filtered(obj, part);
draw_dsc->bg_grad_dir = lv_obj_get_style_bg_grad_dir(obj, part);
if(draw_dsc->bg_grad_dir != LV_GRAD_DIR_NONE) {
draw_dsc->bg_grad_color = lv_obj_get_style_bg_grad_color_filtered(obj, part);
draw_dsc->bg_main_color_stop = lv_obj_get_style_bg_main_stop(obj, part);
draw_dsc->bg_grad_color_stop = lv_obj_get_style_bg_grad_stop(obj, part);
const lv_gradient_t * grad = lv_obj_get_style_bg_gradient(obj, part);
if(grad && grad->dir != LV_GRAD_DIR_NONE) {
lv_memcpy(&draw_dsc->bg_grad, grad, sizeof(*grad));
}
else {
draw_dsc->bg_grad.dir = lv_obj_get_style_bg_grad_dir(obj, part);
if(draw_dsc->bg_grad.dir != LV_GRAD_DIR_NONE) {
draw_dsc->bg_grad.stops[0].color = lv_obj_get_style_bg_color_filtered(obj, part);
draw_dsc->bg_grad.stops[1].color = lv_obj_get_style_bg_grad_color_filtered(obj, part);
draw_dsc->bg_grad.stops[0].frac = lv_obj_get_style_bg_main_stop(obj, part);
draw_dsc->bg_grad.stops[1].frac = lv_obj_get_style_bg_grad_stop(obj, part);
}
draw_dsc->bg_grad.dither = lv_obj_get_style_bg_dither_mode(obj, part);
}
}
}