From ff5d23cae239e36b89749f7b6222a1171311fff6 Mon Sep 17 00:00:00 2001
From: Maschell <Maschell@gmx.de>
Date: Mon, 8 Aug 2022 11:55:13 +0200
Subject: [PATCH] Optimize file reading

---
 source/fs/FSUtils.cpp | 16 +++++++++++-----
 1 file changed, 11 insertions(+), 5 deletions(-)

diff --git a/source/fs/FSUtils.cpp b/source/fs/FSUtils.cpp
index 275c738..e0a5f90 100644
--- a/source/fs/FSUtils.cpp
+++ b/source/fs/FSUtils.cpp
@@ -20,8 +20,13 @@ int32_t FSUtils::LoadFileToMem(const char *filepath, uint8_t **inbuffer, uint32_
         return -1;
     }
 
-    uint32_t filesize = lseek(iFd, 0, SEEK_END);
-    lseek(iFd, 0, SEEK_SET);
+    struct stat file_stat;
+    int rc = fstat(iFd, &file_stat);
+    if (rc < 0) {
+        close(iFd);
+        return -4;
+    }
+    uint32_t filesize = file_stat.st_size;
 
     auto *buffer = (uint8_t *) memalign(0x40, ROUNDUP(filesize, 0x40));
     if (buffer == nullptr) {
@@ -29,17 +34,18 @@ int32_t FSUtils::LoadFileToMem(const char *filepath, uint8_t **inbuffer, uint32_
         return -2;
     }
 
-    uint32_t blocksize = 0x20000;
+    uint32_t blocksize = 0x80000;
     uint32_t done      = 0;
-    int32_t readBytes  = 0;
+    int32_t readBytes;
 
     while (done < filesize) {
         if (done + blocksize > filesize) {
             blocksize = filesize - done;
         }
         readBytes = read(iFd, buffer + done, blocksize);
-        if (readBytes <= 0)
+        if (readBytes <= 0) {
             break;
+        }
         done += readBytes;
     }