summaryrefslogtreecommitdiff
path: root/src/resources/imagehelper.h
diff options
context:
space:
mode:
Diffstat (limited to 'src/resources/imagehelper.h')
-rw-r--r--src/resources/imagehelper.h170
1 files changed, 170 insertions, 0 deletions
diff --git a/src/resources/imagehelper.h b/src/resources/imagehelper.h
new file mode 100644
index 000000000..680794625
--- /dev/null
+++ b/src/resources/imagehelper.h
@@ -0,0 +1,170 @@
+/*
+ * The ManaPlus Client
+ * Copyright (C) 2004-2009 The Mana World Development Team
+ * Copyright (C) 2009-2010 The Mana Developers
+ * Copyright (C) 2011-2012 The ManaPlus Developers
+ *
+ * This file is part of The ManaPlus Client.
+ *
+ * This program 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.
+ *
+ * This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef IMAGEHELPER_H
+#define IMAGEHELPER_H
+
+#include "localconsts.h"
+#include "main.h"
+
+#include "resources/resource.h"
+
+#include <SDL.h>
+
+#ifdef USE_OPENGL
+
+/* The definition of OpenGL extensions by SDL is giving problems with recent
+ * gl.h headers, since they also include these definitions. As we're not using
+ * extensions anyway it's safe to just disable the SDL version.
+ */
+//#define NO_SDL_GLEXT
+#define GL_GLEXT_PROTOTYPES 1
+
+#include <SDL_opengl.h>
+#endif
+
+#include <map>
+
+class Dye;
+class Image;
+
+struct Position;
+
+/**
+ * Defines a class for loading and storing images.
+ */
+class ImageHelper : public Resource
+{
+ friend class CompoundSprite;
+ friend class Graphics;
+ friend class Image;
+#ifdef USE_OPENGL
+ friend class OpenGLGraphics;
+ friend class OpenGL1Graphics;
+#endif
+
+ public:
+ /**
+ * Loads an image from an SDL_RWops structure.
+ *
+ * @param rw The SDL_RWops to load the image from.
+ *
+ * @return <code>NULL</code> if an error occurred, a valid pointer
+ * otherwise.
+ */
+ static Resource *load(SDL_RWops *rw);
+
+ /**
+ * Loads an image from an SDL_RWops structure and recolors it.
+ *
+ * @param rw The SDL_RWops to load the image from.
+ * @param dye The dye used to recolor the image.
+ *
+ * @return <code>NULL</code> if an error occurred, a valid pointer
+ * otherwise.
+ */
+ static Resource *load(SDL_RWops *rw, Dye const &dye);
+
+ /**
+ * Loads an image from an SDL surface.
+ */
+ static Image *load(SDL_Surface *);
+
+ static SDL_Surface *convertTo32Bit(SDL_Surface* tmpImage);
+
+ static Image *createTextSurface(SDL_Surface *tmpImage, float alpha);
+
+ static void SDLSetEnableAlphaCache(bool n)
+ { mEnableAlphaCache = n; }
+
+ static bool SDLGetEnableAlphaCache()
+ { return mEnableAlphaCache; }
+
+ static void setEnableAlpha(bool n)
+ { mEnableAlpha = n; }
+
+#ifdef USE_OPENGL
+
+ // OpenGL only public functions
+
+ /**
+ * Sets the target image format. Use <code>false</code> for SDL and
+ * <code>true</code> for OpenGL.
+ */
+ static void setLoadAsOpenGL(int useOpenGL);
+
+ static int getLoadAsOpenGL()
+ { return mUseOpenGL; }
+
+ static int getTextureType()
+ { return mTextureType; }
+
+ static int getInternalTextureType()
+ { return mInternalTextureType; }
+
+ static void setInternalTextureType(int n)
+ { mInternalTextureType = n; }
+
+ static void setBlur(bool n)
+ { mBlur = n; }
+
+ static int mTextureType;
+
+ static int mInternalTextureType;
+
+ static void dumpSurfaceFormat(SDL_Surface *image);
+
+ static SDL_Surface* SDLDuplicateSurface(SDL_Surface* tmpImage);
+
+#endif
+
+ /**
+ * Tells if the image was loaded using OpenGL or SDL
+ * @return true if OpenGL, false if SDL.
+ */
+ static int useOpenGL();
+
+ protected:
+ /** SDL_Surface to SDL_Surface Image loader */
+ static Image *_SDLload(SDL_Surface *tmpImage);
+
+ static bool mEnableAlphaCache;
+ static bool mEnableAlpha;
+
+ // -----------------------
+ // OpenGL protected members
+ // -----------------------
+#ifdef USE_OPENGL
+ /**
+ * Returns the first power of two equal or bigger than the input.
+ */
+ static int powerOfTwo(int input);
+
+ static Image *_GLload(SDL_Surface *tmpImage);
+
+ static int mUseOpenGL;
+ static int mTextureSize;
+ static bool mBlur;
+#endif
+};
+
+#endif