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38 lines
1011 B
38 lines
1011 B
#include "draw/lv_img_buf.h"
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#include "draw/lv_img_decoder.h"
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#include "lauxlib.h"
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#include "lua.h"
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#include "luavgl.h"
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#include "misc/lv_color.h"
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#include "misc/lv_mem.h"
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#include "misc/lv_types.h"
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#include "private.h"
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#include <stdint.h>
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#include <string.h>
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static int luavgl_imgdata_create(lua_State *L)
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{
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if (!lua_isstring(L, 1)) {
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return luaL_argerror(L, 1, "expect string");
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}
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lv_img_decoder_dsc_t descriptor;
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lv_res_t res =
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lv_img_decoder_open(&descriptor, lua_tostring(L, 1), lv_color_black(), 0);
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if (res != LV_RES_OK) {
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return luaL_error(L, "failed to decode image.");
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}
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lv_img_dsc_t *data = lv_mem_alloc(sizeof(lv_img_dsc_t));
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data->header = descriptor.header;
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data->data_size = data->header.w * data->header.h * sizeof(uint32_t); // ???
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uint8_t *data_copy = lv_mem_alloc(data->data_size);
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memcpy(data_copy, descriptor.img_data, data->data_size);
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data->data = data_copy;
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lv_img_decoder_close(&descriptor);
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lua_pushlightuserdata(L, data);
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return 1;
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}
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