Tested and fixed BSA archive loader for Ogre, added test script

bsa/bsa_archive.cpp

@@ -30,7 +30,12 @@
 */
 
 #include <OgreArchive.h>
+#include <OgreArchiveFactory.h>
 #include "bsa_file.h"
+#include "../mangle/stream/clients/ogre_datastream.h"
+
+using namespace Ogre;
+using namespace Mangle::Stream;
 
 /// An OGRE Archive wrapping a BSAFile archive
 class BSAArchive : public Archive
@@ -51,8 +56,17 @@ public:
   // Open a file in the archive.
   DataStreamPtr open(const String& filename) const
   {
-    // Open the file, and wrap it into an Ogre::DataStream.
-    return DataStreamPtr(new MangleDataStream(getFile(filename.c_str()));
+    // Get a non-const reference to arc. This is a hack and it's all
+    // OGRE's fault. You should NOT expect an open() command not to
+    // have any side effects on the archive, and hence this function
+    // should not have been declared const in the first place.
+    BSAFile *narc = (BSAFile*)&arc;
+
+    // Open the file
+    StreamPtr strm = narc->getFile(filename.c_str());
+
+    // Wrap it into an Ogre::DataStream.
+    return DataStreamPtr(new Mangle2OgreStream(strm));
   }
 
   // This is never called as far as I can see.
@@ -128,8 +142,6 @@ public:
 class BSAArchiveFactory : public ArchiveFactory
 {
 public:
-  virtual ~BSAArchiveFactory() {}
-
   const String& getType() const
   {
     static String name = "BSA";

bsa/tests/Makefile

@@ -1,10 +1,16 @@
 GCC=g++
 
-all: bsa_file_test bsatool
+all: bsa_file_test bsatool ogre_archive_test
+
+I_OGRE=$(shell pkg-config --cflags OGRE)
+L_OGRE=$(shell pkg-config --libs OGRE)
 
 bsa_file_test: bsa_file_test.cpp ../bsa_file.cpp
 	$(GCC) $^ -o $@
 
+ogre_archive_test: ogre_archive_test.cpp ../bsa_file.cpp
+	$(GCC) $^ -o $@ $(I_OGRE) $(L_OGRE)
+
 bsatool: bsatool.cpp ../bsa_file.cpp bsatool_cmd.c
 	$(GCC) $^ -o $@
 

bsa/tests/ogre_archive_test.cpp

@@ -0,0 +1,38 @@
+#include <Ogre.h>
+#include <iostream>
+
+// This is a test of the BSA archive handler for OGRE.
+
+#include "../bsa_archive.cpp"
+
+using namespace Ogre;
+using namespace std;
+
+int main()
+{
+  // Disable Ogre logging
+  new LogManager;
+  Log *log = LogManager::getSingleton().createLog("");
+  log->setDebugOutputEnabled(false);
+
+  // Set up Root
+  Root *root = new Root("","","");
+
+  // Add the archive manager
+  ArchiveManager::getSingleton().addArchiveFactory( new BSAArchiveFactory );
+
+  // Add Morrowind.bsa
+  ResourceGroupManager::getSingleton().
+    addResourceLocation("../../data/Morrowind.bsa", "BSA", "General");
+
+  // Pick a sample file
+  String tex = "textures\\tx_natural_cavern_wall13.dds";
+  cout << "Opening file: " << tex << endl;
+
+  // Get it from the resource system
+  DataStreamPtr data = ResourceGroupManager::getSingleton().openResource(tex, "General");
+
+  cout << "Size: " << data->size() << endl;
+
+  return 0;
+}

bsa/tests/output/bsa_file_test.out

@@ -0,0 +1,17 @@
+Reading Morrowind.bsa
+First 10 files in archive:
+  meshes\m\probe_journeyman_01.nif (6276 bytes @126646784)
+  textures\menu_rightbuttonup_top.dds (256 bytes @218533676)
+  textures\menu_rightbuttonup_right.dds (256 bytes @218533420)
+  textures\menu_rightbuttonup_left.dds (256 bytes @218533164)
+  textures\menu_rightbuttondown_top.dds (256 bytes @218531820)
+  meshes\b\b_n_redguard_f_skins.nif (41766 bytes @17810510)
+  meshes\b\b_n_redguard_m_skins.nif (41950 bytes @18103839)
+  meshes\b\b_n_redguard_f_wrist.nif (2355 bytes @17858864)
+  meshes\b\b_n_redguard_m_foot.nif (4141 bytes @17862813)
+  meshes\b\b_n_redguard_m_knee.nif (2085 bytes @18098833)
+Does file 'meshes\r\xnetch_betty.nif' exist?
+  Yes.
+  53714 bytes
+Does file 'humdrum' exist?
+  No.

bsa/tests/output/ogre_archive_test.out

@@ -0,0 +1,2 @@
+Opening file: textures\tx_natural_cavern_wall13.dds
+Size: 43808

bsa/tests/test.sh

@@ -0,0 +1,18 @@
+#!/bin/bash
+
+make || exit
+
+mkdir -p output
+
+PROGS=*_test
+
+for a in $PROGS; do
+    if [ -f "output/$a.out" ]; then
+        echo "Running $a:"
+        $a | diff output/$a.out -
+    else
+        echo "Creating $a.out"
+        $a > "output/$a.out"
+        git add "output/$a.out"
+    fi
+done