Added SDLImageLoader class to make guichan support physfs.

1 files changed, 84 insertions, 0 deletions

diff --git a/src/resources/sdlimageloader.cpp b/src/resources/sdlimageloader.cpp
new file mode 100644
index 00000000..42bbf1ca
--- /dev/null
+++ b/src/resources/sdlimageloader.cpp
@@ -0,0 +1,84 @@
+/*
+ *  The Mana World
+ *  Copyright 2004 The Mana World Development Team
+ *
+ *  This file is part of The Mana World.
+ *
+ *  The Mana World is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  any later version.
+ *
+ *  The Mana World is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with The Mana World; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ *  $Id$
+ */
+
+#include "sdlimageloader.h"
+
+#include <iostream>
+#include <string>
+#include <SDL_image.h>
+
+#include <guichan/exception.hpp>
+
+#include "resourcemanager.h"
+
+void SDLImageLoader::prepare(const std::string &filename)
+{
+    if (mCurrentImage)
+    {
+        throw GCN_EXCEPTION("Function called before finalizing or discarding last loaded image.");
+    }
+
+    ResourceManager *resman = ResourceManager::getInstance();
+
+    int fileSize;
+    void *buffer = resman->loadFile(filename, fileSize);
+
+    SDL_Surface *tmp = NULL;
+    if (buffer) {
+        SDL_RWops *rw = SDL_RWFromMem(buffer, fileSize);
+        tmp = IMG_Load_RW(rw, 1);
+        ::free(buffer);
+    }
+
+    if (!tmp)
+    {
+        throw GCN_EXCEPTION(std::string("Unable to load image file: ")+filename);
+    }
+
+    Uint32 rmask, gmask, bmask, amask;
+#if SDL_BYTEORDER == SDL_BIG_ENDIAN
+    rmask = 0xff000000;
+    gmask = 0x00ff0000;
+    bmask = 0x0000ff00;
+    amask = 0x000000ff;
+#else
+    rmask = 0x000000ff;
+    gmask = 0x0000ff00;
+    bmask = 0x00ff0000;
+    amask = 0xff000000;
+#endif
+
+    mCurrentImage = SDL_CreateRGBSurface(SDL_SWSURFACE, 0, 0, 32,
+            rmask, gmask, bmask, amask);
+
+    if (!mCurrentImage)
+    {
+        throw GCN_EXCEPTION(std::string("Not enough memory to load: ")+filename);
+    }
+
+    SDL_Surface* tmp2 = SDL_ConvertSurface(tmp, mCurrentImage->format, SDL_SWSURFACE);
+    SDL_FreeSurface(tmp);
+    SDL_FreeSurface(mCurrentImage);
+
+    mCurrentImage = tmp2;
+}