util/image.h

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#pragma once
 
#include <stddef.h>
#include <stdint.h>
#include "asciichat_errno.h"
 
asciichat_error_t image_calc_pixel_count(size_t width, size_t height, size_t *out_pixel_count);
 
asciichat_error_t image_calc_pixel_buffer_size(size_t pixel_count, size_t bytes_per_pixel, size_t *out_size);
 
asciichat_error_t image_calc_rgb_size(size_t width, size_t height, size_t *out_size);
 
asciichat_error_t image_calc_total_allocation(size_t width, size_t height, size_t struct_size, size_t bytes_per_pixel,
                                              size_t *out_size);
 
asciichat_error_t image_validate_dimensions(size_t width, size_t height);
 
asciichat_error_t image_validate_buffer_size(size_t requested_size);