89 lines
2.5 KiB
C
89 lines
2.5 KiB
C
#pragma once
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#ifndef _ASSET_H_
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#define _ASSET_H_
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#include "api.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#ifndef V5_API_H_
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typedef struct __attribute__((__packed__)) _v5_image {
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uint16_t width;
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uint16_t height;
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uint32_t *data;
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uint32_t *p;
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} v5_image;
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uint32_t vexImageBmpRead(const uint8_t *ibuf, v5_image *oBuf, uint32_t maxw, uint32_t maxh);
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uint32_t vexImagePngRead(const uint8_t *ibuf, v5_image *oBuf, uint32_t maxw, uint32_t maxh, uint32_t ibuflen);
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void vexDisplayCopyRect(int32_t x1, int32_t y1, int32_t x2, int32_t y2, uint32_t *pSrc, int32_t srcStride);
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#endif
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typedef struct __attribute__((__packed__)) _asset {
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uint8_t *buf;
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size_t size;
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} asset;
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#ifdef __cplusplus
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}
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#endif
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#ifdef __cplusplus
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#define ASSET(x) \
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extern "C" { \
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extern uint8_t _binary_static_##x##_start[], _binary_static_##x##_size[]; \
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static asset x = {_binary_static_##x##_start, (size_t)_binary_static_##x##_size}; \
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}
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#else
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#define ASSET(x) \
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extern uint8_t _binary_static_##x##_start[], _binary_static_##x##_size[]; \
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static asset x = {_binary_static_##x##_start, (size_t)_binary_static_##x##_size};
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#endif
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#define DECODE_PNG(var, asset, width, height) \
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var.data = new uint32_t[width * height]; \
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vexImagePngRead(asset.buf, &var, width, height, asset.size);
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#define DECODE_BMP(var, asset, width, height) \
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var.data = new uint32_t[width * height]; \
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vexImageBmpRead(asset.buf, &var, width, height);
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static void draw_image(int x, int y, v5_image *image) {
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int x2 = x + image->width - 1;
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int y2 = y + image->height - 1;
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vexDisplayCopyRect(x, y, x2, y2, image->data, x2 - x + 1);
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}
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static void draw_image(lv_obj_t *canvas, int x, int y, v5_image *image) {
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int start_x = x;
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int start_y = y;
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for (int i = 0; i < image->height; i++) {
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for (int j = 0; j < image->width; j++) {
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lv_color_t c = lv_color_hex(image->data[i * image->width + j]);
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lv_color_t d = lv_canvas_get_px(canvas, start_x + j, start_y + i);
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float a_float = c.alpha / 2.55 / 100;
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float a_m_float = 1 - a_float;
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d.red = d.red * a_m_float + c.red * a_float;
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d.green = d.green * a_m_float + c.green * a_float;
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d.blue = d.blue * a_m_float + c.blue * a_float;
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lv_canvas_set_px(canvas, start_x + j, start_y + i, d);
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}
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}
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}
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#endif // _ASSET_H_
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