From 3cf47056f239f1096590c27c1d401904a54f84fc Mon Sep 17 00:00:00 2001
From: Andrei Karas <akaras@inbox.ru>
Date: Tue, 16 May 2017 17:50:47 +0300
Subject: Add subdir support in VirtFs::loadFile.

---
 src/fs/virtfs/fsdir.cpp           |  4 +--
 src/fs/virtfs/fsdir.h             |  2 +-
 src/fs/virtfs/fsfuncs.h           |  2 +-
 src/fs/virtfs/fszip.cpp           |  5 ++-
 src/fs/virtfs/fszip.h             |  2 +-
 src/fs/virtfs/virtfs1_unittest.cc | 66 +++++++++++++++++++++++++++++++++++++++
 6 files changed, 75 insertions(+), 6 deletions(-)

diff --git a/src/fs/virtfs/fsdir.cpp b/src/fs/virtfs/fsdir.cpp
index 2e69dedb1..bafe3d2e3 100644
--- a/src/fs/virtfs/fsdir.cpp
+++ b/src/fs/virtfs/fsdir.cpp
@@ -458,11 +458,11 @@ namespace FsDir
     }
 
     const char *loadFile(FsEntry *restrict const entry,
-                         const std::string &restrict filename,
+                         std::string filename,
                          int &restrict fileSize)
     {
         const DirEntry *const dirEntry = static_cast<DirEntry*>(entry);
-        const std::string path = entry->root + filename;
+        const std::string path = entry->root + entry->subDir + filename;
         if (Files::existsLocal(path) == false)
             return nullptr;
         FILEHTYPE fd = FILEOPEN(path.c_str(),
diff --git a/src/fs/virtfs/fsdir.h b/src/fs/virtfs/fsdir.h
index 704d7e916..ada58943e 100644
--- a/src/fs/virtfs/fsdir.h
+++ b/src/fs/virtfs/fsdir.h
@@ -95,7 +95,7 @@ namespace FsDir
              const uint64_t pos);
     int eof(File *restrict const file);
     const char *loadFile(FsEntry *restrict const entry,
-                         const std::string &restrict fileName,
+                         std::string fileName,
                          int &restrict fileSize);
 }  // namespace FsDir
 
diff --git a/src/fs/virtfs/fsfuncs.h b/src/fs/virtfs/fsfuncs.h
index 6c5428b49..989ee558e 100644
--- a/src/fs/virtfs/fsfuncs.h
+++ b/src/fs/virtfs/fsfuncs.h
@@ -111,7 +111,7 @@ struct FsFuncs final
                          const std::string &filename);
     int (*eof) (File *restrict const file);
     const char *(*loadFile) (FsEntry *restrict const entry,
-                             const std::string &restrict fileName,
+                             std::string fileName,
                              int &restrict fileSize);
 
     RWOPSINT (*rwops_seek) (SDL_RWops *const rw,
diff --git a/src/fs/virtfs/fszip.cpp b/src/fs/virtfs/fszip.cpp
index f2f16bcbb..91d323cc1 100644
--- a/src/fs/virtfs/fszip.cpp
+++ b/src/fs/virtfs/fszip.cpp
@@ -658,10 +658,13 @@ namespace FsZip
     }
 
     const char *loadFile(FsEntry *restrict const entry,
-                         const std::string &restrict filename,
+                         std::string filename,
                          int &restrict fileSize)
     {
         ZipEntry *const zipEntry = static_cast<ZipEntry*>(entry);
+        const std::string subDir = zipEntry->subDir;
+        if (subDir != dirSeparator)
+            filename = pathJoin(subDir, filename);
         FOR_EACH (std::vector<ZipLocalHeader*>::const_iterator,
                   it2,
                   zipEntry->mHeaders)
diff --git a/src/fs/virtfs/fszip.h b/src/fs/virtfs/fszip.h
index fbd6dba4d..68466a25c 100644
--- a/src/fs/virtfs/fszip.h
+++ b/src/fs/virtfs/fszip.h
@@ -84,7 +84,7 @@ namespace FsZip
              const uint64_t pos);
     int eof(File *restrict const file);
     const char *loadFile(FsEntry *restrict const entry,
-                         const std::string &restrict fileName,
+                         std::string fileName,
                          int &restrict fileSize);
 }  // namespace FsZip
 
diff --git a/src/fs/virtfs/virtfs1_unittest.cc b/src/fs/virtfs/virtfs1_unittest.cc
index 78787f9d0..4c046b621 100644
--- a/src/fs/virtfs/virtfs1_unittest.cc
+++ b/src/fs/virtfs/virtfs1_unittest.cc
@@ -2649,6 +2649,72 @@ TEST_CASE("VirtFs1 loadFile2")
     delete2(logger);
 }
 
+TEST_CASE("VirtFs1 loadFile3")
+{
+    VirtFs::init(".");
+    int fileSize = 0;
+    logger = new Logger();
+    std::string name("data/test/test.zip");
+    std::string prefix;
+    if (Files::existsLocal(name) == false)
+        prefix = "../" + prefix;
+
+    VirtFs::mountDir2(prefix + "data",
+        "test",
+        Append_false);
+
+    const char *const buffer = VirtFs::loadFile("test.txt", fileSize);
+    REQUIRE(static_cast<const void*>(buffer) != nullptr);
+    REQUIRE(fileSize == 23);
+    REQUIRE(strncmp(buffer, "test line 1\ntest line 2", 23) == 0);
+    delete [] buffer;
+
+    VirtFs::unmountDir2(prefix + "data",
+        "test");
+    VirtFs::deinit();
+    delete2(logger);
+}
+
+TEST_CASE("VirtFs1 loadFile4")
+{
+    VirtFs::init(".");
+    int fileSize = 0;
+    logger = new Logger();
+    std::string name("data/test/test.zip");
+    std::string prefix;
+    if (Files::existsLocal(name) == false)
+        prefix = "../" + prefix;
+
+    VirtFs::mountZip2(prefix + "data/test/test2.zip",
+        "dir2",
+        Append_false);
+
+    SECTION("test 1")
+    {
+        const char *restrict buffer = VirtFs::loadFile("test.txt",
+            fileSize);
+        REQUIRE(static_cast<const void*>(buffer) != nullptr);
+        REQUIRE(fileSize == 23);
+        REQUIRE(strncmp(buffer, "test line 1\ntest line 2", 23) == 0);
+        delete [] buffer;
+    }
+
+    SECTION("test 2")
+    {
+        const char *restrict buffer = VirtFs::loadFile("test.txt",
+            fileSize);
+        REQUIRE(static_cast<const void*>(buffer) != nullptr);
+        REQUIRE(fileSize == 23);
+        REQUIRE(strncmp(buffer, "test line 1\ntest line 2", 23) == 0);
+        delete [] buffer;
+    }
+
+    VirtFs::unmountZip2(prefix + "data/test/test2.zip",
+        "dir2");
+    VirtFs::deinit();
+    delete2(logger);
+}
+
 TEST_CASE("VirtFs1 rwops_read1")
 {
     VirtFs::init(".");
-- 
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