image.c File Reference

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Functions
asciichat_error_t	image_render_test_pattern (image_t *image, unsigned int *frame_counter)
	Render animated color bars and grid lines into an existing image.
image_t *	image_new (size_t width, size_t height)
	Create a new image with standard allocation.
void	image_destroy (image_t *p)
	Destroy an image allocated with image_new()
image_t *	image_new_from_pool (size_t width, size_t height)
	Create a new image from buffer pool.
void	image_destroy_to_pool (image_t *image)
	Destroy an image allocated from buffer pool.
void	image_clear (image_t *p)
	Clear image (set all pixels to black)
image_t *	image_new_copy (const image_t *source)
	Create a copy of an existing image.
rgb_pixel_t *	image_pixel (image_t *p, const int x, const int y)
void	image_resize (const image_t *s, image_t *d)
	Resize image using nearest-neighbor interpolation.
void	image_resize_interpolation (const image_t *source, image_t *dest)
	Resize image using bilinear interpolation.
void	precalc_rgb_palettes (const float red, const float green, const float blue)
	Precalculate RGB palettes with color adjustment.

Function Documentation

image_pixel()

rgb_pixel_t * image_pixel ( image_t *  p, const int  x, const int  y  )

inline

Definition at line 301 of file video/rgba/image.c.

                                                                      {
  // Add bounds checking to prevent buffer overflow on invalid coordinates
  if (!p || !p->pixels || x < 0 || x >= p->w || y < 0 || y >= p->h) {
    return NULL;
  }
  return &p->pixels[x + y * p->w];
}

References image_t::h, image_t::pixels, and image_t::w.