/* * The ManaPlus Client * Copyright (C) 2004-2009 The Mana World Development Team * Copyright (C) 2009-2010 The Mana Developers * Copyright (C) 2011-2014 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 RESOURCES_OPENGLIMAGEHELPER_H #define RESOURCES_OPENGLIMAGEHELPER_H #include "localconsts.h" #include "main.h" #ifdef USE_OPENGL #ifndef GL_TEXTURE_RECTANGLE_ARB #define GL_TEXTURE_RECTANGLE_ARB 0x84F5 #define GL_MAX_RECTANGLE_TEXTURE_SIZE_ARB 0x84F8 #endif #include "resources/imagehelper.h" #ifdef ANDROID #include <GLES/gl.h> #define GL_RGBA8 GL_RGBA8_OES #else #ifndef USE_SDL2 #define GL_GLEXT_PROTOTYPES 1 #endif #include <SDL_opengl.h> #endif class Dye; class Image; /** * Defines a class for loading and storing images. */ class OpenGLImageHelper final : public ImageHelper { friend class CompoundSprite; friend class Graphics; friend class Image; public: OpenGLImageHelper() : mFreeTextureIndex(0) { } A_DELETE_COPY(OpenGLImageHelper) ~OpenGLImageHelper(); /** * 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. */ Image *load(SDL_RWops *const rw, Dye const &dye) override final A_WARN_UNUSED; /** * Loads an image from an SDL surface. */ Image *load(SDL_Surface *const tmpImage) override final A_WARN_UNUSED; Image *createTextSurface(SDL_Surface *const tmpImage, const int width, const int height, const float alpha) override final A_WARN_UNUSED; // OpenGL only public functions static int getTextureType() A_WARN_UNUSED { return mTextureType; } static int getInternalTextureType() A_WARN_UNUSED { return mInternalTextureType; } static void setInternalTextureType(const int n) { mInternalTextureType = n; } static void setBlur(const bool n) { mBlur = n; } static int mTextureType; static int mInternalTextureType; static int getTextureSize() A_WARN_UNUSED { return mTextureSize; } static void initTextureSampler(const GLint id); static void setUseTextureSampler(const bool b) { mUseTextureSampler = b; } static void invalidate(const GLuint textureId); static void bindTexture(const GLuint texture); SDL_Surface *create32BitSurface(int width, int height) const override final; void postInit() override final; void copySurfaceToImage(const Image *const image, const int x, const int y, SDL_Surface *surface) const; protected: /** * Returns the first power of two equal or bigger than the input. */ static int powerOfTwo(const int input) A_WARN_UNUSED; static SDL_Surface *convertSurface(SDL_Surface *tmpImage, int width, int height); Image *glLoad(SDL_Surface *tmpImage, int width = 0, int height = 0) A_WARN_UNUSED; GLuint getNewTexture(); static const size_t texturesSize = 10; size_t mFreeTextureIndex; GLuint mTextures[texturesSize]; static int mTextureSize; static bool mBlur; static bool mUseTextureSampler; }; #endif #endif // RESOURCES_OPENGLIMAGEHELPER_H