_image_utils_8h_source.html

#include <SDL2/SDL.h>

#include <SDL2/SDL_image.h>

#include <SDL2/SDL_render.h>

#include <SDL.h>

#include <SDL_image.h>

#include <SDL_render.h>

#include <SDL_error.h>

#include <SDL_rect.h>

#include <SDL_surface.h>


#ifndef M_PI

#define M_PI acos(-1.0)

#endif


#ifndef IMAGE_UTILS_H

#define IMAGE_UTILS_H


void render_image_file(const char* file, SDL_Renderer* renderer, const SDL_Rect* srcrect, const SDL_Rect* dstrect);


void render_full_image_file(const char* file, SDL_Renderer* renderer, const SDL_Rect* dstrect);


void render_surface(SDL_Surface* surface, SDL_Renderer* renderer, const SDL_Rect* srcrect, const SDL_Rect* dstrect);


void* get_pixel_pt(SDL_Surface* surface, size_t x, size_t y);


Uint32 get_pixel_val(void* pixel, SDL_PixelFormat* format);


void set_pixel_val(void* pixel, SDL_PixelFormat* format, Uint32 val);


void pixel_to_grayscale(void* pixel, SDL_PixelFormat* format);


void pixel_to_black_white(void* pixel, SDL_PixelFormat* format, Uint8 threshold);


void image_to_black_white(SDL_Surface* surface);


SDL_Surface* create_sub_surface(SDL_Surface* surface, SDL_Rect rect);


// void rotate_pixels(SDL_Surface* surface, double angle);


SDL_Surface* rotate_pixels(SDL_Surface* surface, double angle);


double* image_to_bool_array(const char* file, size_t* image_len);


SDL_Surface* resize_image(SDL_Surface* source, int new_width, int new_height);


#endif

render_full_image_file
void render_full_image_file(const char *file, SDL_Renderer *renderer, const SDL_Rect *dstrect)
Renders an entire image file onto a given SDL renderer.
Definition ImageUtils.c:33

get_pixel_pt
void * get_pixel_pt(SDL_Surface *surface, size_t x, size_t y)
Retrieves a pointer to the pixel at the specified coordinates in an SDL surface.
Definition ImageUtils.c:82

create_sub_surface
SDL_Surface * create_sub_surface(SDL_Surface *surface, SDL_Rect rect)
Creates a sub-surface from a given SDL surface and rectangle.
Definition ImageUtils.c:287

image_to_bool_array
double * image_to_bool_array(const char *file, size_t *image_len)
Definition ImageUtils.c:409

render_surface
void render_surface(SDL_Surface *surface, SDL_Renderer *renderer, const SDL_Rect *srcrect, const SDL_Rect *dstrect)
Renders a given SDL surface onto a given SDL renderer.
Definition ImageUtils.c:59

pixel_to_black_white
void pixel_to_black_white(void *pixel, SDL_PixelFormat *format, Uint8 threshold)
Converts a pixel to black or white based on a threshold.
Definition ImageUtils.c:219

render_image_file
void render_image_file(const char *file, SDL_Renderer *renderer, const SDL_Rect *srcrect, const SDL_Rect *dstrect)
Renders an image file onto a given SDL renderer.
Definition ImageUtils.c:7

set_pixel_val
void set_pixel_val(void *pixel, SDL_PixelFormat *format, Uint32 val)
Sets the pixel value at a given memory location based on the SDL pixel format.
Definition ImageUtils.c:145

resize_image
SDL_Surface * resize_image(SDL_Surface *source, int new_width, int new_height)
Definition ImageUtils.c:438

image_to_black_white
void image_to_black_white(SDL_Surface *surface)
Converts an entire SDL surface to black and white.
Definition ImageUtils.c:258

rotate_pixels
SDL_Surface * rotate_pixels(SDL_Surface *surface, double angle)
Definition ImageUtils.c:331

get_pixel_val
Uint32 get_pixel_val(void *pixel, SDL_PixelFormat *format)
Retrieves the pixel value from a given pixel pointer and SDL pixel format.
Definition ImageUtils.c:101

pixel_to_grayscale
void pixel_to_grayscale(void *pixel, SDL_PixelFormat *format)
Converts a pixel to grayscale.
Definition ImageUtils.c:192