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31 lines
1014 B
31 lines
1014 B
typedef struct rif {
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// "lifV0001"
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// "rifV0001"
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char magic_num[8]; // Big Endian. UTF-8 Encoded. 6C 69 66 56 30 30 30 31
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uint64_t width; // Big Endian
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uint8_t format;
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uint8_t data[];
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} rif_t;
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#define RIF_MAGIC_LITTLE {'l', 'i', 'f', 'V', '0', '0', '0', '1'}
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#define RIF_MAGIC_BIG {'r', 'i', 'f', 'V', '0', '0', '0', '1'}
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#define RIF_FORMAT_R8G8B8 0
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#define RIF_FORMAT_R8G8B8A8 1
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// TODO detect endianess - this breaks on big endian systems.
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void write_rif_little(char* path, uint32_t width, uint32_t size, uint8_t format, void* data) {
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// TODO is this better than just hardcoding 17?
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const uint32_t header_size = sizeof(rif_t) - sizeof(uint8_t*);
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const uint64_t img_size = header_size + size;
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rif_t* img = malloc(img_size);
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char magic[] = RIF_MAGIC_LITTLE;
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memcpy(&img->magic_num, magic, 8);
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img->width = width;
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img->format = format;
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memcpy(&img->data, data, size);
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FILE* output_file = fopen(path, "w");
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fwrite(img, 1, img_size, output_file);
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free(img);
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}
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