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29 lines
681 B
C
29 lines
681 B
C
#include <stdlib.h>
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#include "zlib.h"
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// https://github.com/nothings/stb/issues/113
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static unsigned char* compress_for_stbiw(unsigned char* data, int data_len, int* out_len, int quality)
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{
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uLongf buf_size = compressBound(data_len);
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// note that buf will be free'd by stb_image_write.h
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// with STBIW_FREE() (plain free() by default)
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unsigned char* buf = malloc(buf_size);
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if (buf == NULL)
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return NULL;
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if (compress2(buf, &buf_size, data, data_len, quality) != Z_OK)
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{
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free(buf);
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return NULL;
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}
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*out_len = buf_size;
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return buf;
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}
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#define STBIW_ZLIB_COMPRESS compress_for_stbiw
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#define STB_IMAGE_WRITE_IMPLEMENTATION
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#include "stb_image_write.h"
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