Fries
f7bbb92d85
the api now requires you to call an async function initWasm to make the functions work instead of using top level await. i also optimized the wasm module to have O3 and fast-math (which the original blurhash makefile had and the results do seem to be the same with the javascript blurhash). I also gave the wasm instance functions inside typescript types and i fixed a bug where i didnt free the pointers in order so if you called decode too many times, you will run out of memory.
34 lines
1.1 KiB
C
34 lines
1.1 KiB
C
#ifndef __BLURHASH_DECODE_H__
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#define __BLURHASH_DECODE_H__
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#include <math.h>
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#include <stdbool.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include <string.h>
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/*
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decodeToArray : Decodes the blurhash and copies the pixels to pixelArray,
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This method is suggested if you use an external memory allocator for pixelArray.
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pixelArray should be of size : width * height * nChannels
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Parameters :
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blurhash : A string representing the blurhash to be decoded.
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width : Width of the resulting image
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height : Height of the resulting image
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punch : The factor to improve the contrast, default = 1
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nChannels : Number of channels in the resulting image array, 3 = RGB, 4 = RGBA
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pixelArray : Pointer to memory region where pixels needs to be copied.
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Returns : int, -1 if error 0 if successful
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*/
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int decodeToArray(uint8_t* blurhash, int width, int height, int punch, int nChannels, uint8_t* pixelArray);
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/*
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isValidBlurhash : Checks if the Blurhash is valid or not.
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Parameters :
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blurhash : A string representing the blurhash
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Returns : bool (true if it is a valid blurhash, else false)
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*/
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bool isValidBlurhash(uint8_t* blurhash);
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#endif
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