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Fallback image drawing.

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This commit is contained in:
Nicholas Marriott
2026-10-14 00:08:37 +01:00
parent fbbecde236
commit c53fd94ffd
6 changed files with 234 additions and 14 deletions
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14
image.c
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@@ -86,7 +86,7 @@ image_find(u_int id)
return (RB_FIND(images, &images, &find));
}
/* Return the ID of an image. */
/* Get the ID of an image. */
u_int
image_get_id(struct image *im)
{
@@ -139,7 +139,7 @@ image_create(u_int w, u_int h, u_int cw, u_int ch, u_int sx, u_int sy,
return (NULL);
if (sx > USHRT_MAX || sy > USHRT_MAX)
return (NULL);
if (sx * sy > IMAGE_SIZE_LIMIT)
if ((uint64_t)sx * sy > IMAGE_SIZE_LIMIT)
return (NULL);
im = image_alloc(w, h, cw, ch, sx, sy, w * 4, pixels);
@@ -198,7 +198,7 @@ image_create_view(struct image *src, struct image_view *view)
view->height > src->height - view->y ||
view->sx > USHRT_MAX ||
view->sy > USHRT_MAX ||
view->sx * view->sy > IMAGE_SIZE_LIMIT ||
(uint64_t)view->sx * view->sy > IMAGE_SIZE_LIMIT ||
view->canvas_xoff > view->canvas_width ||
view->scaled_width > view->canvas_width - view->canvas_xoff ||
view->canvas_yoff > view->canvas_height ||
@@ -255,7 +255,7 @@ image_free(struct image *im)
}
}
/* Return image size in pixels. */
/* Get image size in pixels. */
void
image_get_size(struct image *im, u_int *w, u_int *h)
{
@@ -263,7 +263,7 @@ image_get_size(struct image *im, u_int *w, u_int *h)
*h = im->height;
}
/* Return canvas size in pixels. */
/* Get canvas size in pixels. */
void
image_get_canvas_size(struct image *im, u_int *w, u_int *h)
{
@@ -271,7 +271,7 @@ image_get_canvas_size(struct image *im, u_int *w, u_int *h)
*h = im->canvas_height;
}
/* Return image size in cells. */
/* Get image size in cells. */
void
image_get_size_in_cells(struct image *im, u_int *sx, u_int *sy)
{
@@ -279,7 +279,7 @@ image_get_size_in_cells(struct image *im, u_int *sx, u_int *sy)
*sy = im->sy;
}
/* Return image pixels. */
/* Get image pixels. */
const u_char *
image_get_pixels(struct image *im, size_t *stride, size_t *size)
{