mirrors/raylib
1
0
Fork 0
mirror of https://github.com/raysan5/raylib.git synced 2026-07-12 04:09:37 +00:00
Code Issues Packages Projects Releases Wiki Activity

REVIEWED: ImageFromImage() - ROS: CLN-007

Browse Source
This commit is contained in:
Ray
2026-07-11 16:20:41 +02:00
parent ab35e0f712
commit c31666fe2a
1 changed files with 17 additions and 10 deletions
Download Patch File Download Diff File Expand all files Collapse all files

27
src/rtextures.c
View File

@@ -1228,18 +1228,25 @@ Image ImageFromImage(Image image, Rectangle rec)
{
Image result = { 0 };
int bytesPerPixel = GetPixelDataSize(1, 1, image.format);
result.width = (int)rec.width;
result.height = (int)rec.height;
result.data = RL_CALLOC((int)rec.width*(int)rec.height*bytesPerPixel, 1);
result.format = image.format;
result.mipmaps = 1;
for (int y = 0; y < (int)rec.height; y++)
// Basic rectangle validation: size smaller than image size
if ((rec.x > 0) && (rec.y > 0) && (rec.width > 0) && (rec.height > 0) &&
(((int)rec.x + (int)rec.width) < image.width) &&
(((int)rec.y + (int)rec.height) < image.height))
{
memcpy(((unsigned char *)result.data) + y*(int)rec.width*bytesPerPixel, ((unsigned char *)image.data) + ((y + (int)rec.y)*image.width + (int)rec.x)*bytesPerPixel, (int)rec.width*bytesPerPixel);
int bytesPerPixel = GetPixelDataSize(1, 1, image.format);
result.width = (int)rec.width;
result.height = (int)rec.height;
result.data = RL_CALLOC((int)rec.width*(int)rec.height*bytesPerPixel, 1);
result.format = image.format;
result.mipmaps = 1;
for (int y = 0; y < (int)rec.height; y++)
{
memcpy(((unsigned char *)result.data) + y*(int)rec.width*bytesPerPixel, ((unsigned char *)image.data) + ((y + (int)rec.y)*image.width + (int)rec.x)*bytesPerPixel, (int)rec.width*bytesPerPixel);
}
}
else TRACELOG(LOG_WARNING, "IMAGE: Rectangle provided for ImageToImage not valid");
return result;
}