diff options
Diffstat (limited to 'src/resources')
| -rw-r--r-- | src/resources/openglscreenshothelper.cpp | 106 | ||||
| -rw-r--r-- | src/resources/openglscreenshothelper.h | 54 |
2 files changed, 160 insertions, 0 deletions
diff --git a/src/resources/openglscreenshothelper.cpp b/src/resources/openglscreenshothelper.cpp new file mode 100644 index 000000000..ec561476e --- /dev/null +++ b/src/resources/openglscreenshothelper.cpp @@ -0,0 +1,106 @@ +/* + * The ManaPlus Client + * Copyright (C) 2004-2009 The Mana World Development Team + * Copyright (C) 2009-2010 The Mana Developers + * Copyright (C) 2011-2015 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/>. + */ + +#ifdef USE_OPENGL + +#include "resources/openglscreenshothelper.h" + +#include "configuration.h" +#include "graphicsmanager.h" + +#include "render/mgl.h" +#ifdef __native_client__ +#include "render/naclglfunctions.h" +#endif + +#include "debug.h" + +OpenGLScreenshotHelper::OpenGLScreenshotHelper() : + ScreenshotHelper(), + mFbo() +{ +} + +OpenGLScreenshotHelper::~OpenGLScreenshotHelper() +{ +} + +void OpenGLScreenshotHelper::prepare(const int width, + const int height) +{ + if (config.getBoolValue("usefbo")) + graphicsManager.createFBO(width, height, &mFbo); +} + +SDL_Surface *OpenGLScreenshotHelper::getScreenshot(const int width, + const int height) +{ + const int h = height; + const int w = width - (width % 4); + GLint pack = 1; + + SDL_Surface *const screenshot = MSDL_CreateRGBSurface( + SDL_SWSURFACE, w, h, 24, + 0xff0000, 0x00ff00, 0x0000ff, 0x000000); + + if (!screenshot) + return nullptr; + + if (SDL_MUSTLOCK(screenshot)) + SDL_LockSurface(screenshot); + + const size_t lineSize = 3 * w; + GLubyte *const buf = new GLubyte[lineSize]; + + // Grap the pixel buffer and write it to the SDL surface + mglGetIntegerv(GL_PACK_ALIGNMENT, &pack); + mglPixelStorei(GL_PACK_ALIGNMENT, 1); + mglReadPixels(0, 0, w, h, GL_RGB, GL_UNSIGNED_BYTE, screenshot->pixels); + + // Flip the screenshot, as OpenGL has 0,0 in bottom left + const int h2 = h / 2; + for (int i = 0; i < h2; i++) + { + GLubyte *const top = static_cast<GLubyte*>( + screenshot->pixels) + lineSize * i; + GLubyte *const bot = static_cast<GLubyte*>( + screenshot->pixels) + lineSize * (h - 1 - i); + + memcpy(buf, top, lineSize); + memcpy(top, bot, lineSize); + memcpy(bot, buf, lineSize); + } + + delete [] buf; + + if (config.getBoolValue("usefbo")) + graphicsManager.deleteFBO(&mFbo); + + mglPixelStorei(GL_PACK_ALIGNMENT, pack); + + if (SDL_MUSTLOCK(screenshot)) + SDL_UnlockSurface(screenshot); + + return screenshot; +} + +#endif // USE_OPENGL diff --git a/src/resources/openglscreenshothelper.h b/src/resources/openglscreenshothelper.h new file mode 100644 index 000000000..fe9a7cfeb --- /dev/null +++ b/src/resources/openglscreenshothelper.h @@ -0,0 +1,54 @@ +/* + * The ManaPlus Client + * Copyright (C) 2004-2009 The Mana World Development Team + * Copyright (C) 2009-2010 The Mana Developers + * Copyright (C) 2011-2015 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_SDL2IMAGEHELPER_H +#define RESOURCES_SDL2IMAGEHELPER_H + +#ifdef USE_OPENGL + +#include "resources/screenshothelper.h" + +#include "resources/fboinfo.h" + +#include "localconsts.h" + +class OpenGLScreenshotHelper final : public ScreenshotHelper +{ + public: + OpenGLScreenshotHelper(); + + A_DELETE_COPY(OpenGLScreenshotHelper) + + ~OpenGLScreenshotHelper(); + + void prepare(const int width, + const int height) override final; + + SDL_Surface *getScreenshot(const int width, + const int height) override final; + + private: + FBOInfo mFbo; +}; + +#endif // USE_OPENGL +#endif // RESOURCES_SDL2IMAGEHELPER_H |