26621c72c6
- add docs - remove unused things - redo modifications i accidentally erased from spacetime
86 lines
2.9 KiB
C
86 lines
2.9 KiB
C
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* utils.h :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: mc <mc@student.42.fr> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2024/10/15 16:56:47 by mcolonna #+# #+# */
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/* Updated: 2024/11/01 20:55:00 by mc ### ########.fr */
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/* */
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/* ************************************************************************** */
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#ifndef UTILS_H
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# define UTILS_H
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# include "include.h"
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typedef uint32_t u_int32_t;
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/// @brief Represents a point of double type.
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typedef struct s_point_double
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{
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double x;
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double y;
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} t_point_double;
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/// @brief Represents a point of int type.
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typedef struct s_point_int
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{
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int x;
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int y;
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} t_point_int;
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// TODO Must the transparency be 0 or 255?
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/// @brief Represents an TRGB color in 0xTTRRGGBB format.
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typedef __u32 t_color;
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/// @brief Convert a color from each color value to a t_color.
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///
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/// @param red Level of red from 0 to 255.
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/// @param green Level of green from 0 to 255.
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/// @param blue Level of blue from 0 to 255.
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/// @return The result.
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t_color color_from_rgb(int red, int green, int blue);
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/// @brief Write an error message on stderr.
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///
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/// @param str... All the strings to write. The last parameter MUST BE NULL.
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void write_err(const char *str, ...);
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/// @brief Call the function in loop.
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/// If not enough time passed since the last call, returns without doing
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/// anything.
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///
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/// @param f Function to call in loop.
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void timedloop(void (*f)(void));
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/// @brief Get an address to the image data, but only if
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/// bpp == 32 and endian == 0.
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///
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/// @param img_ptr mlx image to use.
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/// @return Address to the data, or NULL if error.
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u_int32_t *get_data_addr(void *img_ptr);
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/// @brief Create a vector according to the angle with a specific norm.
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/// (0 rad returns (0;-1) / pi/2 rad returns (1;0))
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///
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/// @param vec This will be set to the result.
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/// @param angle Angle to use in radians.
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/// @param norm Norm the vector must have.
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void vector_from_rotation(t_point_double *vec, double angle, double norm);
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/// @brief Size of buffer used in read_all_text().
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# define READ_ALL_TEXT_BUFFER_SIZE 1000
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/// @brief Read all the text of the given file.
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///
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/// If the last line isn't ended by a '\\n', add one.
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///
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/// If error, returns NULL and set errno accordingly.
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///
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/// @param fd File descriptor of the file.
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/// @return Alloc'd string of the file content. NULL if error.
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char *read_all_text(int fd);
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#endif
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