19 void LV_ATTRIBUTE_FAST_MEM lv_dither_none(lv_grad_t * grad, lv_coord_t x, lv_coord_t y, lv_coord_t …  in lv_dither_none()  argument
21     LV_UNUSED(x);  in lv_dither_none()
41 void LV_ATTRIBUTE_FAST_MEM lv_dither_ordered_hor(lv_grad_t * grad, lv_coord_t x, lv_coord_t y, lv_c…  in lv_dither_ordered_hor()  argument
43     LV_UNUSED(x);  in lv_dither_ordered_hor()
65 void LV_ATTRIBUTE_FAST_MEM lv_dither_ordered_ver(lv_grad_t * grad, lv_coord_t x, lv_coord_t y, lv_c…  in lv_dither_ordered_ver()  argument
80         int8_t factor = dither_ordered_threshold_matrix[(y & 7) * 8 + ((j + x) & 7)] - 32;  in lv_dither_ordered_ver()
107         Coefs are:   x 7  in lv_dither_err_diff_hor()
110         Can be implemented as:            x       (x<<3 - x)  in lv_dither_err_diff_hor()
111                               (x<<2 - x) (x<<2+x)   x  in lv_dither_err_diff_hor()
120     for(lv_coord_t x = 1; x < grad->size - 1; x++) {  in lv_dither_err_diff_hor()  local
121         lv_color32_t t = grad->hmap[x];  in lv_dither_err_diff_hor()
125         next_l = grad->error_acc[x + 1];  in lv_dither_err_diff_hor()
133         grad->error_acc[x - 1].r += coef[1] >> 4;  in lv_dither_err_diff_hor()
134         grad->error_acc[x].r     += coef[2] >> 4;  in lv_dither_err_diff_hor()
135         grad->error_acc[x + 1].r = coef[3] >> 4;  in lv_dither_err_diff_hor()
139         grad->error_acc[x - 1].g += coef[1] >> 4;  in lv_dither_err_diff_hor()
140         grad->error_acc[x].g     += coef[2] >> 4;  in lv_dither_err_diff_hor()
141         grad->error_acc[x + 1].g = coef[3] >> 4;  in lv_dither_err_diff_hor()
145         grad->error_acc[x - 1].b += coef[1] >> 4;  in lv_dither_err_diff_hor()
146         grad->error_acc[x].b     += coef[2] >> 4;  in lv_dither_err_diff_hor()
147         grad->error_acc[x + 1].b = coef[3] >> 4;  in lv_dither_err_diff_hor()
149         grad->map[x] = q;  in lv_dither_err_diff_hor()
196     for(lv_coord_t x = 1; x < w; x++) {  in lv_dither_err_diff_ver()  local
200         FS_COMPONENTS3(t, +, next_px_err, 6, prev_l, 1, grad->error_acc[x], 9);  in lv_dither_err_diff_ver()
201         prev_l = grad->error_acc[x];  in lv_dither_err_diff_ver()
206         grad->error_acc[x] = next_px_err;  in lv_dither_err_diff_ver()
207         grad->map[x] = q;  in lv_dither_err_diff_ver()