Fix T45216: File Browser shows negative sizes for large files.

Simply backport small part of work from asset-experiments here (using double and
adding tera-bytes unit), looks like off_t is not always 64bits even on a 64bit OS...

1 files changed, 12 insertions, 9 deletions

diff --git a/source/blender/blenlib/intern/BLI_filelist.c b/source/blender/blenlib/intern/BLI_filelist.c
index e9ed785efc7..786eaa74df8 100644
--- a/source/blender/blenlib/intern/BLI_filelist.c
+++ b/source/blender/blenlib/intern/BLI_filelist.c
@@ -218,7 +218,7 @@ static void bli_adddirstrings(struct BuildDirCtx *dir_ctx)
 	const char *types[8] = {"---", "--x", "-w-", "-wx", "r--", "r-x", "rw-", "rwx"};
 	/* symbolic display, indexed by mode field value */
 	int num;
-	off_t st_size;
+	double size;
 	struct direntry *file;
 	struct tm *tm;
 	time_t zero = 0;
@@ -288,19 +288,22 @@ static void bli_adddirstrings(struct BuildDirCtx *dir_ctx)
 		 * will buy us some time until files get bigger than 4GB or until
 		 * everyone starts using __USE_FILE_OFFSET64 or equivalent.
 		 */
-		st_size = file->s.st_size;
+		size = (double)file->s.st_size;
 
-		if (st_size > 1024 * 1024 * 1024) {
-			BLI_snprintf(file->size, sizeof(file->size), "%.2f GiB", ((double)st_size) / (1024 * 1024 * 1024));
+		if (size > 1024.0 * 1024.0 * 1024.0 * 1024.0) {
+			BLI_snprintf(file->size, sizeof(file->size), "%.1f TiB", size / (1024.0 * 1024.0 * 1024.0 * 1024.0));
 		}
-		else if (st_size > 1024 * 1024) {
-			BLI_snprintf(file->size, sizeof(file->size), "%.1f MiB", ((double)st_size) / (1024 * 1024));
+		else if (size > 1024.0 * 1024.0 * 1024.0) {
+			BLI_snprintf(file->size, sizeof(file->size), "%.1f GiB", size / (1024.0 * 1024.0 * 1024.0));
 		}
-		else if (st_size > 1024) {
-			BLI_snprintf(file->size, sizeof(file->size), "%d KiB", (int)(st_size / 1024));
+		else if (size > 1024.0 * 1024.0) {
+			BLI_snprintf(file->size, sizeof(file->size), "%.1f MiB", size / (1024.0 * 1024.0));
+		}
+		else if (size > 1024.0) {
+			BLI_snprintf(file->size, sizeof(file->size), "%.1f KiB", size / 1024.0);
 		}
 		else {
-			BLI_snprintf(file->size, sizeof(file->size), "%d B", (int)st_size);
+			BLI_snprintf(file->size, sizeof(file->size), "%d B", (int)size);
 		}
 	}
 }