52 lines
1.3 KiB
C
52 lines
1.3 KiB
C
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/*
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* Copyright (c) 2019 Jan Van Winkel <jan.van_winkel@dxplore.eu>
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <zephyr.h>
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#include <lvgl.h>
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#include "lvgl_display.h"
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void lvgl_flush_cb_24bit(struct _disp_drv_t *disp_drv,
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const lv_area_t *area, lv_color_t *color_p)
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{
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struct device *display_dev = (struct device *)disp_drv->user_data;
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u16_t w = area->x2 - area->x1 + 1;
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u16_t h = area->y2 - area->y1 + 1;
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struct display_buffer_descriptor desc;
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desc.buf_size = w * 3U * h;
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desc.width = w;
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desc.pitch = w;
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desc.height = h;
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display_write(display_dev, area->x1, area->y1, &desc, (void *) color_p);
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lv_disp_flush_ready(disp_drv);
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}
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void lvgl_set_px_cb_24bit(struct _disp_drv_t *disp_drv,
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u8_t *buf, lv_coord_t buf_w, lv_coord_t x, lv_coord_t y,
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lv_color_t color, lv_opa_t opa)
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{
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u8_t *buf_xy = buf + x * 3U + y * 3U * buf_w;
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lv_color32_t converted_color;
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#ifdef CONFIG_LVGL_COLOR_DEPTH_32
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if (opa != LV_OPA_COVER) {
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lv_color_t mix_color;
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mix_color.ch.red = *buf_xy;
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mix_color.ch.green = *(buf_xy+1);
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mix_color.ch.blue = *(buf_xy+2);
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color = lv_color_mix(color, mix_color, opa);
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}
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#endif
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converted_color.full = lv_color_to32(color);
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*buf_xy = converted_color.ch.red;
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*(buf_xy + 1) = converted_color.ch.green;
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*(buf_xy + 2) = converted_color.ch.blue;
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}
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