/* * The ManaPlus Client * Copyright (C) 2012-2016 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/>. */ #include "graphicsmanager.h" #ifdef USE_OPENGL #ifndef WIN32 #ifdef ANDROID #include <GLES2/gl2.h> #include <GLES/glext.h> #include <EGL/egl.h> #ifndef USE_SDL2 #include <SDL_android.h> #endif // USE_SDL2 #elif defined(__native_client__) #include <GL/Regal.h> #include "render/opengl/naclglfunctions.h" #else // ANDROID #ifdef USE_X11 #include <GL/glx.h> #endif // USE_X11 #endif // ANDROID #endif // WIN32 #endif // USE_OPENGL #include "settings.h" #ifdef USE_OPENGL #include "render/mobileopengl2graphics.h" #include "render/mobileopenglgraphics.h" #include "render/modernopenglgraphics.h" #include "render/normalopenglgraphics.h" #include "render/safeopenglgraphics.h" #include "render/opengl/mgl.h" #include "render/opengl/mglcheck.h" #include "render/opengl/mglemu.h" #endif #include "render/sdlgraphics.h" #ifdef USE_OPENGL #include "resources/openglimagehelper.h" #include "resources/openglscreenshothelper.h" #ifndef ANDROID #include "resources/mobileopenglscreenshothelper.h" #include "resources/safeopenglimagehelper.h" #endif // ANDROID #include "render/opengl/mglfunctions.h" #endif // USE_OPENGL #include "resources/sdlimagehelper.h" #include "resources/sdlscreenshothelper.h" #ifdef USE_SDL2 #include "render/sdl2softwaregraphics.h" #include "resources/sdl2softwareimagehelper.h" #include "resources/sdl2softwarescreenshothelper.h" #include "resources/surfaceimagehelper.h" #endif #include "utils/delete2.h" #include "utils/sdlhelper.h" #ifdef USE_OPENGL #include "test/testmain.h" #else // USE_OPENGL #include "configuration.h" #include "render/renderers.h" #endif // USE_OPENGL #include <SDL_syswm.h> #include "debug.h" #ifdef USE_OPENGL #ifndef GL_MAX_RENDERBUFFER_SIZE #define GL_MAX_RENDERBUFFER_SIZE 0x84E8 #endif #define useCompression(name) \ OpenGLImageHelper::setInternalTextureType(name); \ logger->log("using " #name " texture compression"); #endif GraphicsManager graphicsManager; RenderType openGLMode = RENDER_SOFTWARE; ScreenshotHelper *screenshortHelper = nullptr; const int densitySize = 6; const std::string densityNames[] = { "low", "medium", "tv", "high", "xhigh", "xxhigh" }; #ifdef USE_OPENGL GLenum GraphicsManager::mLastError(GL_NO_ERROR); #endif GraphicsManager::GraphicsManager() : mExtensions(), mPlatformExtensions(), mGlVersionString(), mGlVendor(), mGlRenderer(), mGlShaderVersionString(), mMinor(0), mMajor(0), mSLMinor(0), mSLMajor(0), mPlatformMinor(0), mPlatformMajor(0), mMaxVertices(500), mMaxFboSize(0), mMaxWidth(0), mMaxHeight(0), mWidthMM(0), mHeightMM(0), mDensity(-1), #ifdef USE_OPENGL mUseTextureSampler(true), mTextureSampler(0), mSupportDebug(0), mSupportModernOpengl(false), mGles(false), #endif mUseAtlases(false) { } GraphicsManager::~GraphicsManager() { #ifdef USE_OPENGL if (isGLNotNull(mglGenSamplers) && mTextureSampler) mglDeleteSamplers(1, &mTextureSampler); #endif } #ifdef USE_OPENGL TestMain *GraphicsManager::startDetection() { TestMain *const test = new TestMain(); test->exec(false); return test; } int GraphicsManager::detectGraphics() { logger->log1("start detecting best mode..."); logger->log1("enable opengl mode"); int textureSampler = 0; int compressTextures = 0; #if !defined(ANDROID) && !defined(__native_client__) mainGraphics = new NormalOpenGLGraphics; #endif SDL_Window *const window = createWindow(100, 100, 0, SDL_ANYFORMAT | SDL_OPENGL); mainGraphics->setWindow(window, 100, 100); mainGraphics->createGLContext(); initOpenGL(); logVersion(); RenderType mode = RENDER_NORMAL_OPENGL; // detecting features by known renderers or vendors if (findI(mGlRenderer, "gdi generic") != std::string::npos) { // windows gdi OpenGL emulation logger->log("detected gdi drawing"); logger->log("disable OpenGL"); mode = RENDER_SOFTWARE; } else if (findI(mGlRenderer, "Software Rasterizer") != std::string::npos) { // software OpenGL emulation logger->log("detected software drawing"); logger->log("disable OpenGL"); mode = RENDER_SOFTWARE; } else if (findI(mGlRenderer, "Indirect") != std::string::npos) { // indirect OpenGL drawing logger->log("detected indirect drawing"); logger->log("disable OpenGL"); mode = RENDER_SOFTWARE; } else if (findI(mGlVendor, "VMWARE") != std::string::npos) { // vmware emulation logger->log("detected VMWARE driver"); logger->log("disable OpenGL"); mode = RENDER_SOFTWARE; } else if (findI(mGlRenderer, "LLVM") != std::string::npos) { // llvm opengl emulation logger->log("detected llvm driver"); logger->log("disable OpenGL"); mode = RENDER_SOFTWARE; } else if (findI(mGlVendor, "NVIDIA") != std::string::npos) { // hope it can work well logger->log("detected NVIDIA driver"); config.setValue("useTextureSampler", true); textureSampler = 1; mode = RENDER_NORMAL_OPENGL; } // detecting feature based on OpenGL version if (!checkGLVersion(1, 1)) { // very old OpenGL version logger->log("OpenGL version too old"); mode = RENDER_SOFTWARE; } if (mode != RENDER_SOFTWARE && findI(mGlVersionString, "Mesa") != std::string::npos) { // Mesa detected. In latest Mesa look like compression broken. config.setValue("compresstextures", false); compressTextures = 0; } config.setValue("opengl", CAST_S32(mode)); config.setValue("videoconfigured", true); config.write(); logger->log("detection complete"); return CAST_U32(mode) | (1024 * textureSampler) | (2048 * compressTextures); } #ifdef USE_SDL2 #define RENDER_SOFTWARE_INIT \ imageHelper = new SDL2SoftwareImageHelper; \ surfaceImageHelper = new SurfaceImageHelper; \ mainGraphics = new SDL2SoftwareGraphics; \ screenshortHelper = new Sdl2SoftwareScreenshotHelper; #define RENDER_SDL2_DEFAULT_INIT \ imageHelper = new SDLImageHelper; \ surfaceImageHelper = new SurfaceImageHelper; \ mainGraphics = new SDLGraphics; \ screenshortHelper = new SdlScreenshotHelper; \ mainGraphics->setRendererFlags(SDL_RENDERER_ACCELERATED); \ mUseTextureSampler = false; #else // USE_SDL2 #define RENDER_SOFTWARE_INIT \ imageHelper = new SDLImageHelper; \ surfaceImageHelper = imageHelper; \ mainGraphics = new SDLGraphics; \ screenshortHelper = new SdlScreenshotHelper; #define RENDER_SDL2_DEFAULT_INIT #endif // USE_SDL2 #if defined(ANDROID) || defined(__native_client__) #define RENDER_NORMAL_OPENGL_INIT #define RENDER_MODERN_OPENGL_INIT #else // defined(ANDROID) || defined(__native_client__) #define RENDER_NORMAL_OPENGL_INIT \ imageHelper = new OpenGLImageHelper; \ surfaceImageHelper = new SurfaceImageHelper; \ mainGraphics = new NormalOpenGLGraphics; \ screenshortHelper = new OpenGLScreenshotHelper; \ mUseTextureSampler = true; #define RENDER_MODERN_OPENGL_INIT \ imageHelper = new OpenGLImageHelper; \ surfaceImageHelper = new SurfaceImageHelper; \ mainGraphics = new ModernOpenGLGraphics; \ screenshortHelper = new OpenGLScreenshotHelper; \ mUseTextureSampler = true; #endif // defined(ANDROID) || defined(__native_client__) #if defined(ANDROID) #define RENDER_SAFE_OPENGL_INIT #define RENDER_GLES2_OPENGL_INIT #else // defined(ANDROID) #define RENDER_SAFE_OPENGL_INIT \ imageHelper = new SafeOpenGLImageHelper; \ surfaceImageHelper = new SurfaceImageHelper; \ mainGraphics = new SafeOpenGLGraphics; \ screenshortHelper = new OpenGLScreenshotHelper; \ mUseTextureSampler = false; #define RENDER_GLES2_OPENGL_INIT \ imageHelper = new OpenGLImageHelper; \ surfaceImageHelper = new SurfaceImageHelper; \ mainGraphics = new MobileOpenGL2Graphics; \ screenshortHelper = new MobileOpenGLScreenshotHelper; \ mUseTextureSampler = false; #endif // defined(ANDROID) #if defined(__native_client__) #define RENDER_GLES_OPENGL_INIT #else // defined(__native_client__) #define RENDER_GLES_OPENGL_INIT \ imageHelper = new OpenGLImageHelper; \ surfaceImageHelper = new SurfaceImageHelper; \ mainGraphics = new MobileOpenGLGraphics; \ screenshortHelper = new OpenGLScreenshotHelper; \ mUseTextureSampler = false; #endif // defined(__native_client__) void GraphicsManager::createRenderers() { RenderType useOpenGL = RENDER_SOFTWARE; if (!settings.options.noOpenGL) { if (settings.options.renderer < 0) { useOpenGL = intToRenderType(config.getIntValue("opengl")); settings.options.renderer = CAST_S32(useOpenGL); } else { useOpenGL = intToRenderType(settings.options.renderer); } } // Setup image loading for the right image format ImageHelper::setOpenGlMode(useOpenGL); // Create the graphics context switch (useOpenGL) { case RENDER_SOFTWARE: RENDER_SOFTWARE_INIT mUseTextureSampler = false; break; case RENDER_LAST: case RENDER_NULL: default: break; case RENDER_NORMAL_OPENGL: RENDER_NORMAL_OPENGL_INIT break; case RENDER_SAFE_OPENGL: RENDER_SAFE_OPENGL_INIT break; case RENDER_MODERN_OPENGL: RENDER_MODERN_OPENGL_INIT break; case RENDER_GLES2_OPENGL: RENDER_GLES2_OPENGL_INIT break; case RENDER_GLES_OPENGL: RENDER_GLES_OPENGL_INIT break; case RENDER_SDL2_DEFAULT: RENDER_SDL2_DEFAULT_INIT break; }; mUseAtlases = (useOpenGL == RENDER_NORMAL_OPENGL || useOpenGL == RENDER_SAFE_OPENGL || useOpenGL == RENDER_MODERN_OPENGL || useOpenGL == RENDER_GLES_OPENGL || useOpenGL == RENDER_GLES2_OPENGL) && config.getBoolValue("useAtlases"); #else // USE_OPENGL void GraphicsManager::createRenderers() { RenderType useOpenGL = RENDER_SOFTWARE; if (!settings.options.noOpenGL) useOpenGL = intToRenderType(config.getIntValue("opengl")); // Setup image loading for the right image format ImageHelper::setOpenGlMode(useOpenGL); // Create the graphics context switch (useOpenGL) { case RENDER_SOFTWARE: case RENDER_SAFE_OPENGL: case RENDER_GLES_OPENGL: case RENDER_GLES2_OPENGL: case RENDER_MODERN_OPENGL: case RENDER_NORMAL_OPENGL: case RENDER_NULL: case RENDER_LAST: default: #ifndef USE_SDL2 case RENDER_SDL2_DEFAULT: #endif #ifdef USE_SDL2 imageHelper = new SDL2SoftwareImageHelper; surfaceImageHelper = new SurfaceImageHelper; mainGraphics = new SDL2SoftwareGraphics; screenshortHelper = new Sdl2SoftwareScreenshotHelper; #else imageHelper = new SDLImageHelper; surfaceImageHelper = imageHelper; mainGraphics = new SDLGraphics; screenshortHelper = new SdlScreenshotHelper; #endif break; #ifdef USE_SDL2 case RENDER_SDL2_DEFAULT: imageHelper = new SDLImageHelper; surfaceImageHelper = new SurfaceImageHelper; mainGraphics = new SDLGraphics; mainGraphics->setRendererFlags(SDL_RENDERER_ACCELERATED); screenshortHelper = new SdlScreenshotHelper; break; #endif }; #endif // USE_OPENGL } void GraphicsManager::deleteRenderers() { delete2(mainGraphics); if (imageHelper != surfaceImageHelper) delete surfaceImageHelper; surfaceImageHelper = nullptr; delete2(imageHelper); } void GraphicsManager::setVideoMode() { const int bpp = 0; const bool fullscreen = config.getBoolValue("screen"); const bool hwaccel = config.getBoolValue("hwaccel"); const bool enableResize = config.getBoolValue("enableresize"); const bool noFrame = config.getBoolValue("noframe"); #ifdef ANDROID // int width = config.getValue("screenwidth", 0); // int height = config.getValue("screenheight", 0); StringVect videoModes; SDL::getAllVideoModes(videoModes); if (videoModes.empty()) logger->error("no video modes detected"); std::vector<int> res; splitToIntVector(res, videoModes[0], 'x'); if (res.size() != 2) logger->error("no video modes detected"); int width = res[0]; int height = res[1]; #elif defined __native_client__ #ifdef USE_SDL2 // not implimented #else const SDL_VideoInfo* info = SDL_GetVideoInfo(); int width = info->current_w; int height = info->current_h; #endif #else int width = config.getIntValue("screenwidth"); int height = config.getIntValue("screenheight"); #endif const int scale = config.getIntValue("scale"); // Try to set the desired video mode if (!mainGraphics->setVideoMode(width, height, scale, bpp, fullscreen, hwaccel, enableResize, noFrame)) { logger->log(strprintf("Couldn't set %dx%dx%d video mode: %s", width, height, bpp, SDL_GetError())); const int oldWidth = config.getValueInt("oldscreenwidth", -1); const int oldHeight = config.getValueInt("oldscreenheight", -1); const int oldFullscreen = config.getValueInt("oldscreen", -1); if (oldWidth != -1 && oldHeight != -1 && oldFullscreen != -1) { config.deleteKey("oldscreenwidth"); config.deleteKey("oldscreenheight"); config.deleteKey("oldscreen"); config.setValueInt("screenwidth", oldWidth); config.setValueInt("screenheight", oldHeight); config.setValue("screen", oldFullscreen == 1); if (!mainGraphics->setVideoMode(oldWidth, oldHeight, scale, bpp, oldFullscreen, hwaccel, enableResize, noFrame)) { logger->safeError(strprintf("Couldn't restore %dx%dx%d " "video mode: %s", oldWidth, oldHeight, bpp, SDL_GetError())); } } } } void GraphicsManager::initGraphics() { openGLMode = intToRenderType(config.getIntValue("opengl")); #ifdef USE_OPENGL OpenGLImageHelper::setBlur(config.getBoolValue("blur")); #ifndef ANDROID SafeOpenGLImageHelper::setBlur(config.getBoolValue("blur")); #endif // ANDROID SurfaceImageHelper::SDLSetEnableAlphaCache( config.getBoolValue("alphaCache") && !openGLMode); ImageHelper::setEnableAlpha((config.getFloatValue("guialpha") != 1.0F || openGLMode) && config.getBoolValue("enableGuiOpacity")); #else SurfaceImageHelper::SDLSetEnableAlphaCache( config.getBoolValue("alphaCache")); ImageHelper::setEnableAlpha(config.getFloatValue("guialpha") != 1.0F && config.getBoolValue("enableGuiOpacity")); #endif createRenderers(); detectPixelSize(); setVideoMode(); #ifdef USE_OPENGL if (config.getBoolValue("checkOpenGLVersion") == true) { const RenderType oldOpenGLMode = openGLMode; if (openGLMode == RENDER_MODERN_OPENGL) { if (!mSupportModernOpengl || !checkGLVersion(3, 0)) { logger->log("Fallback to normal OpenGL mode"); openGLMode = RENDER_NORMAL_OPENGL; } } if (openGLMode == RENDER_NORMAL_OPENGL) { if (!checkGLVersion(2, 0)) { logger->log("Fallback to safe OpenGL mode"); openGLMode = RENDER_SAFE_OPENGL; } } if (openGLMode == RENDER_GLES_OPENGL) { if (!checkGLVersion(2, 0) && !checkGLesVersion(1, 0)) { logger->log("Fallback to safe OpenGL mode"); openGLMode = RENDER_SAFE_OPENGL; } } if (openGLMode == RENDER_GLES2_OPENGL) { // +++ here need check also not implimented gles flag if (!checkGLVersion(2, 0)) { logger->log("Fallback to software mode"); openGLMode = RENDER_SOFTWARE; } } if (openGLMode != oldOpenGLMode) { deleteRenderers(); settings.options.renderer = CAST_S32(openGLMode); config.setValue("opengl", settings.options.renderer); createRenderers(); detectPixelSize(); setVideoMode(); } } #if !defined(ANDROID) && !defined(__APPLE__) const std::string str = config.getStringValue("textureSize"); std::vector<int> sizes; splitToIntVector(sizes, str, ','); const size_t pos = CAST_SIZE(openGLMode); if (sizes.size() <= pos) settings.textureSize = 1024; else settings.textureSize = sizes[pos]; logger->log("Detected max texture size: %u", settings.textureSize); #endif // !defined(ANDROID) && !defined(__APPLE__) #endif } #ifdef USE_SDL2 SDL_Window *GraphicsManager::createWindow(const int w, const int h, const int bpp A_UNUSED, const int flags) { return SDL_CreateWindow("ManaPlus", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, w, h, flags); } SDL_Renderer *GraphicsManager::createRenderer(SDL_Window *const window, const int flags) { // +++ need use different drivers and different flags SDL_Renderer *const renderer = SDL_CreateRenderer(window, -1, flags); SDL_SetRenderDrawBlendMode(renderer, SDL_BLENDMODE_BLEND); return renderer; } #else SDL_Window *GraphicsManager::createWindow(const int w, const int h, const int bpp, const int flags) { return SDL_SetVideoMode(w, h, bpp, flags); } #endif #ifdef USE_OPENGL void GraphicsManager::updateExtensions() { mExtensions.clear(); logger->log1("opengl extensions: "); if (checkGLVersion(3, 0)) { // get extensions in new way assignFunction2(glGetStringi, "glGetStringi"); std::string extList; int num = 0; glGetIntegerv(GL_NUM_EXTENSIONS, &num); for (int f = 0; f < num; f ++) { std::string str = reinterpret_cast<const char*>( mglGetStringi(GL_EXTENSIONS, f)); mExtensions.insert(str); extList.append(str).append(" "); } logger->log1(extList.c_str()); } else { // get extensions in old way char const *extensions = reinterpret_cast<char const *>( mglGetString(GL_EXTENSIONS)); if (extensions) { logger->log1(extensions); splitToStringSet(mExtensions, extensions, ' '); } } } void GraphicsManager::updatePlanformExtensions() { SDL_SysWMinfo info; SDL_VERSION(&info.version); if (SDL::getWindowWMInfo(mainGraphics->getWindow(), &info)) { #ifdef WIN32 if (!mwglGetExtensionsString) return; HDC hdc = GetDC(info.window); if (hdc) { const char *const extensions = mwglGetExtensionsString(hdc); if (extensions) { logger->log1("wGL extensions:"); logger->log1(extensions); splitToStringSet(mPlatformExtensions, extensions, ' '); } } #elif defined USE_X11 Display *const display = info.info.x11.display; if (display) { Screen *const screen = XDefaultScreenOfDisplay(display); if (!screen) return; const int screenNum = XScreenNumberOfScreen(screen); const char *const extensions = glXQueryExtensionsString( display, screenNum); if (extensions) { logger->log1("glx extensions:"); logger->log1(extensions); splitToStringSet(mPlatformExtensions, extensions, ' '); } glXQueryVersion(display, &mPlatformMajor, &mPlatformMinor); if (checkPlatformVersion(1, 1)) { const char *const vendor1 = glXQueryServerString( display, screenNum, GLX_VENDOR); if (vendor1) logger->log("glx server vendor: %s", vendor1); const char *const version1 = glXQueryServerString( display, screenNum, GLX_VERSION); if (version1) logger->log("glx server version: %s", version1); const char *const extensions1 = glXQueryServerString( display, screenNum, GLX_EXTENSIONS); if (extensions1) { logger->log1("glx server extensions:"); logger->log1(extensions1); } const char *const vendor2 = glXGetClientString( display, GLX_VENDOR); if (vendor2) logger->log("glx client vendor: %s", vendor2); const char *const version2 = glXGetClientString( display, GLX_VERSION); if (version2) logger->log("glx client version: %s", version2); const char *const extensions2 = glXGetClientString( display, GLX_EXTENSIONS); if (extensions2) { logger->log1("glx client extensions:"); logger->log1(extensions2); } } logger->log("width=%d", DisplayWidth(display, screenNum)); } #endif } } bool GraphicsManager::supportExtension(const std::string &ext) const { return mExtensions.find(ext) != mExtensions.end(); } void GraphicsManager::updateTextureCompressionFormat() const { const int compressionFormat = config.getIntValue("compresstextures"); // using extensions if can if (checkGLVersion(3, 1) || checkGLesVersion(2, 0) || supportExtension("GL_ARB_texture_compression")) { GLint num = 0; mglGetIntegerv(GL_NUM_COMPRESSED_TEXTURE_FORMATS, &num); logger->log("support %d compressed formats", num); GLint *const formats = new GLint[num > 10 ? CAST_SIZE(num) : 10]; mglGetIntegerv(GL_COMPRESSED_TEXTURE_FORMATS, formats); for (int f = 0; f < num; f ++) logger->log(" 0x%x", CAST_U32(formats[f])); if (compressionFormat) { for (int f = 0; f < num; f ++) { switch (formats[f]) { case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT: if (compressionFormat == 1) { delete []formats; useCompression(GL_COMPRESSED_RGBA_S3TC_DXT5_EXT); return; } break; case GL_COMPRESSED_RGBA_FXT1_3DFX: if (compressionFormat == 2) { delete []formats; useCompression(GL_COMPRESSED_RGBA_FXT1_3DFX); return; } break; case GL_COMPRESSED_RGBA_BPTC_UNORM_ARB: if (compressionFormat == 4) { delete []formats; useCompression(GL_COMPRESSED_RGBA_BPTC_UNORM_ARB); return; } break; default: break; } } if (compressionFormat == 3) { delete []formats; useCompression(GL_COMPRESSED_RGBA_ARB); return; } // workaround for MESA bptc compression detection if (compressionFormat == 4 && supportExtension("GL_ARB_texture_compression_bptc")) { delete []formats; useCompression(GL_COMPRESSED_RGBA_BPTC_UNORM_ARB); return; } } delete []formats; if (compressionFormat) logger->log1("no correct compression format found"); } else { if (compressionFormat) logger->log1("no correct compression format found"); } } void GraphicsManager::updateTextureFormat() { const int renderer = settings.options.renderer; // using default formats if (renderer == RENDER_MODERN_OPENGL || renderer == RENDER_GLES_OPENGL || renderer == RENDER_GLES2_OPENGL || config.getBoolValue("newtextures")) { OpenGLImageHelper::setInternalTextureType(GL_RGBA); #ifndef ANDROID SafeOpenGLImageHelper::setInternalTextureType(GL_RGBA); #endif logger->log1("using RGBA texture format"); } else { OpenGLImageHelper::setInternalTextureType(4); #ifndef ANDROID SafeOpenGLImageHelper::setInternalTextureType(4); #endif logger->log1("using 4 texture format"); } } void GraphicsManager::logString(const char *const format, const int num) { const char *str = reinterpret_cast<const char*>(mglGetString(num)); if (!str) logger->log(format, "?"); else logger->log(format, str); } std::string GraphicsManager::getGLString(const int num) { const char *str = reinterpret_cast<const char*>(mglGetString(num)); return str ? str : ""; } void GraphicsManager::setGLVersion() { mGlVersionString = getGLString(GL_VERSION); std::string version = mGlVersionString; if (findCutFirst(version, "OpenGL ES ")) mGles = true; sscanf(version.c_str(), "%5d.%5d", &mMajor, &mMinor); logger->log("Detected gl version: %d.%d", mMajor, mMinor); mGlVendor = getGLString(GL_VENDOR); mGlRenderer = getGLString(GL_RENDERER); mGlShaderVersionString = getGLString(GL_SHADING_LANGUAGE_VERSION); version = mGlShaderVersionString; cutFirst(version, "OpenGL ES GLSL ES "); cutFirst(version, "OpenGL ES GLSL "); cutFirst(version, "OpenGL ES "); sscanf(version.c_str(), "%5d.%5d", &mSLMajor, &mSLMinor); logger->log("Detected glsl version: %d.%d", mSLMajor, mSLMinor); #ifdef ANDROID if (!mMajor && !mMinor) { logger->log("Overriding detected OpenGL version on Android to 1.0"); mGles = true; mMajor = 1; mMinor = 0; } #endif } void GraphicsManager::logVersion() const { logger->log("gl vendor: " + mGlVendor); logger->log("gl renderer: " + mGlRenderer); logger->log("gl version: " + mGlVersionString); logger->log("glsl version: " + mGlShaderVersionString); } bool GraphicsManager::checkGLVersion(const int major, const int minor) const { return mMajor > major || (mMajor == major && mMinor >= minor); } bool GraphicsManager::checkSLVersion(const int major, const int minor) const { return mSLMajor > major || (mSLMajor == major && mSLMinor >= minor); } bool GraphicsManager::checkGLesVersion(const int major, const int minor) const { return mGles && (mMajor > major || (mMajor == major && mMinor >= minor)); } bool GraphicsManager::checkPlatformVersion(const int major, const int minor) const { return mPlatformMajor > major || (mPlatformMajor == major && mPlatformMinor >= minor); } void GraphicsManager::createFBO(const int width, const int height, FBOInfo *const fbo) { if (!fbo) return; // create a texture object glGenTextures(1, &fbo->textureId); glBindTexture(OpenGLImageHelper::mTextureType, fbo->textureId); glTexParameterf(OpenGLImageHelper::mTextureType, GL_TEXTURE_MAG_FILTER, GL_LINEAR); glTexParameterf(OpenGLImageHelper::mTextureType, GL_TEXTURE_MIN_FILTER, GL_LINEAR); glTexParameterf(OpenGLImageHelper::mTextureType, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); glTexParameterf(OpenGLImageHelper::mTextureType, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); glTexImage2D(OpenGLImageHelper::mTextureType, 0, GL_RGBA8, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr); glBindTexture(OpenGLImageHelper::mTextureType, 0); // create a renderbuffer object to store depth info mglGenRenderbuffers(1, &fbo->rboId); mglBindRenderbuffer(GL_RENDERBUFFER, fbo->rboId); mglRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH_COMPONENT, width, height); mglBindRenderbuffer(GL_RENDERBUFFER, 0); // create a framebuffer object mglGenFramebuffers(1, &fbo->fboId); mglBindFramebuffer(GL_FRAMEBUFFER, fbo->fboId); // attach the texture to FBO color attachment point mglFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, OpenGLImageHelper::mTextureType, fbo->textureId, 0); // attach the renderbuffer to depth attachment point mglFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, fbo->rboId); mglBindFramebuffer(GL_FRAMEBUFFER, fbo->fboId); glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); } void GraphicsManager::deleteFBO(FBOInfo *const fbo) { if (!fbo) return; mglBindFramebuffer(GL_FRAMEBUFFER, 0); if (fbo->fboId) { mglDeleteFramebuffers(1, &fbo->fboId); fbo->fboId = 0; } mglBindRenderbuffer(GL_RENDERBUFFER, 0); if (fbo->rboId) { mglDeleteRenderbuffers(1, &fbo->rboId); fbo->rboId = 0; } if (fbo->textureId) { glDeleteTextures(1, &fbo->textureId); fbo->textureId = 0; } } void GraphicsManager::initOpenGLFunctions() { #ifdef __native_client__ emulateFunction(glTextureSubImage2DEXT); #else const bool is10 = checkGLVersion(1, 0); const bool is11 = checkGLVersion(1, 1); const bool is12 = checkGLVersion(1, 2); const bool is13 = checkGLVersion(1, 3); const bool is15 = checkGLVersion(1, 5); const bool is20 = checkGLVersion(2, 0); const bool is21 = checkGLVersion(2, 1); const bool is30 = checkGLVersion(3, 0); const bool is33 = checkGLVersion(3, 3); const bool is41 = checkGLVersion(4, 1); const bool is42 = checkGLVersion(4, 2); const bool is43 = checkGLVersion(4, 3); const bool is44 = checkGLVersion(4, 4); const bool is45 = checkGLVersion(4, 5); mSupportModernOpengl = true; // Texture sampler if (is10 && (is33 || supportExtension("GL_ARB_sampler_objects"))) { logger->log1("found GL_ARB_sampler_objects"); assignFunction(glGenSamplers); assignFunction(glDeleteSamplers); assignFunction(glBindSampler); assignFunction(glSamplerParameteri); if (isGLNotNull(mglGenSamplers) && config.getBoolValue("useTextureSampler")) { mUseTextureSampler &= true; } else { mUseTextureSampler = false; } } else { logger->log1("texture sampler not found"); mUseTextureSampler = false; } if (!is11) { mSupportModernOpengl = false; emulateFunction(glTextureSubImage2DEXT); return; } /* if (findI(mGlVendor, "NVIDIA") != std::string::npos || mGlVersionString.find("Mesa 10.6.") != std::string::npos || mGlVersionString.find("Mesa 11.1.1") != std::string::npos || mGlVersionString.find("Mesa 11.1.2") != std::string::npos || mGlVersionString.find("Mesa 11.1.3") != std::string::npos || mGlVersionString.find("Mesa 11.2") != std::string::npos || (findI(mGlRenderer, "AMD Radeon HD") != std::string::npos && (mGlVersionString.find( "Compatibility Profile Context 14.") != std::string::npos || mGlVersionString.find( "Compatibility Profile Context 15.") != std::string::npos))) { logger->log1("Not checked for DSA because on " "NVIDIA or AMD or in Mesa it broken"); emulateFunction(glTextureSubImage2DEXT); } else */ { // not for NVIDIA. in NVIDIA atleast in windows drivers DSA is broken // Mesa 10.6.3 show support for DSA, but it broken. Works in 10.7 dev if (is45) { logger->log1("found GL_EXT_direct_state_access"); assignFunction(glTextureSubImage2D); } else if (supportExtension("GL_EXT_direct_state_access")) { logger->log1("found GL_EXT_direct_state_access"); assignFunctionEmu2(glTextureSubImage2DEXT, "glTextureSubImage2DEXT"); } else if (supportExtension("GL_ARB_direct_state_access")) { logger->log1("found GL_ARB_direct_state_access"); logger->log1("GL_EXT_direct_state_access not found"); assignFunction(glTextureSubImage2D); } else { logger->log1("GL_EXT_direct_state_access not found"); logger->log1("GL_ARB_direct_state_access not found"); emulateFunction(glTextureSubImage2DEXT); } } if (is12 && (is42 || supportExtension("GL_ARB_texture_storage"))) { logger->log1("found GL_ARB_texture_storage"); assignFunction(glTexStorage2D); } else { logger->log1("GL_ARB_texture_storage not found"); } if (is13 || supportExtension("GL_ARB_multitexture")) { logger->log1("found GL_ARB_multitexture or OpenGL 1.3"); assignFunction(glActiveTexture); } else { emulateFunction(glActiveTexture); logger->log1("GL_ARB_multitexture not found"); } if (is20 || supportExtension("GL_ARB_explicit_attrib_location")) { logger->log1("found GL_ARB_explicit_attrib_location or OpenGL 2.0"); assignFunction(glBindAttribLocation); } else { logger->log1("GL_ARB_explicit_attrib_location not found"); } if (is30 || supportExtension("GL_ARB_framebuffer_object")) { // frame buffer supported logger->log1("found GL_ARB_framebuffer_object"); assignFunction(glGenRenderbuffers); assignFunction(glBindRenderbuffer); assignFunction(glRenderbufferStorage); assignFunction(glGenFramebuffers); assignFunction(glBindFramebuffer); assignFunction(glFramebufferTexture2D); assignFunction(glFramebufferRenderbuffer); assignFunction(glDeleteFramebuffers); assignFunction(glDeleteRenderbuffers); assignFunction(glCheckFramebufferStatus); } else if (supportExtension("GL_EXT_framebuffer_object")) { // old frame buffer extension logger->log1("found GL_EXT_framebuffer_object"); assignFunctionEXT(glGenRenderbuffers); assignFunctionEXT(glBindRenderbuffer); assignFunctionEXT(glRenderbufferStorage); assignFunctionEXT(glGenFramebuffers); assignFunctionEXT(glBindFramebuffer); assignFunctionEXT(glFramebufferTexture2D); assignFunctionEXT(glFramebufferRenderbuffer); assignFunctionEXT(glDeleteFramebuffers); assignFunctionEXT(glDeleteRenderbuffers); } else { // no frame buffer support logger->log1("GL_ARB_framebuffer_object or " "GL_EXT_framebuffer_object not found"); config.setValue("usefbo", false); } // debug extensions if (is43 || supportExtension("GL_KHR_debug")) { logger->log1("found GL_KHR_debug"); assignFunction(glDebugMessageControl); assignFunction(glDebugMessageCallback); assignFunction(glPushDebugGroup); assignFunction(glPopDebugGroup); assignFunction(glObjectLabel); mSupportDebug = 2; } else if (supportExtension("GL_ARB_debug_output")) { logger->log1("found GL_ARB_debug_output"); assignFunctionARB(glDebugMessageControl); assignFunctionARB(glDebugMessageCallback); mSupportDebug = 1; } else { logger->log1("debug extensions not found"); mSupportDebug = 0; } if (supportExtension("GL_GREMEDY_frame_terminator")) { logger->log1("found GL_GREMEDY_frame_terminator"); assignFunction2(glFrameTerminator, "glFrameTerminatorGREMEDY"); } else { logger->log1("GL_GREMEDY_frame_terminator not found"); } if (is44 || supportExtension("GL_EXT_debug_label")) { logger->log1("found GL_EXT_debug_label"); assignFunction2(glLabelObject, "glObjectLabel"); if (isGLNull(mglLabelObject)) assignFunctionEXT(glLabelObject); assignFunctionEXT(glGetObjectLabel); } else { logger->log1("GL_EXT_debug_label not found"); } if (supportExtension("GL_GREMEDY_string_marker")) { logger->log1("found GL_GREMEDY_string_marker"); assignFunction2(glPushGroupMarker, "glStringMarkerGREMEDY"); } else { logger->log1("GL_GREMEDY_string_marker not found"); } if (supportExtension("GL_EXT_debug_marker")) { logger->log1("found GL_EXT_debug_marker"); assignFunctionEXT(glInsertEventMarker); assignFunctionEXT(glPushGroupMarker); assignFunctionEXT(glPopGroupMarker); } else { logger->log1("GL_EXT_debug_marker not found"); } if (is15 && (is30 || supportExtension("GL_EXT_timer_query"))) { logger->log1("found GL_EXT_timer_query"); assignFunction(glGenQueries); assignFunction(glBeginQuery); assignFunction(glEndQuery); assignFunction(glDeleteQueries); assignFunction(glGetQueryObjectiv); assignFunctionEXT(glGetQueryObjectui64v); } else { logger->log1("GL_EXT_timer_query not supported"); } if (is20 && (is43 || supportExtension("GL_ARB_invalidate_subdata"))) { logger->log1("found GL_ARB_invalidate_subdata"); assignFunction(glInvalidateTexImage); } else { logger->log1("GL_ARB_invalidate_subdata not supported"); } if (is21 && (is30 || supportExtension("GL_ARB_vertex_array_object"))) { logger->log1("found GL_ARB_vertex_array_object"); assignFunction(glGenVertexArrays); assignFunction(glBindVertexArray); assignFunction(glDeleteVertexArrays); assignFunction(glVertexAttribPointer); assignFunction(glEnableVertexAttribArray); assignFunction(glDisableVertexAttribArray); assignFunction(glVertexAttribIPointer); } else { mSupportModernOpengl = false; logger->log1("GL_ARB_vertex_array_object not found"); } if (is20 || supportExtension("GL_ARB_vertex_buffer_object")) { assignFunction(glGenBuffers); assignFunction(glDeleteBuffers); assignFunction(glBindBuffer); assignFunction(glBufferData); assignFunction(glIsBuffer); } else { mSupportModernOpengl = false; logger->log1("buffers extension not found"); } if (is43 || supportExtension("GL_ARB_copy_image")) { logger->log1("found GL_ARB_copy_image"); assignFunction(glCopyImageSubData); } else { logger->log1("GL_ARB_copy_image not found"); } if (is44 || supportExtension("GL_ARB_clear_texture")) { logger->log1("found GL_ARB_clear_texture"); assignFunction(glClearTexImage); assignFunction(glClearTexSubImage); } else { logger->log1("GL_ARB_clear_texture not found"); } if (is20 || supportExtension("GL_ARB_shader_objects")) { logger->log1("found GL_ARB_shader_objects"); assignFunction(glCreateShader); assignFunction(glDeleteShader); assignFunction(glGetShaderiv); assignFunction(glGetShaderInfoLog); assignFunction(glGetShaderSource); assignFunction(glShaderSource); assignFunction(glCompileShader); assignFunction(glLinkProgram); assignFunction(glGetProgramInfoLog); assignFunction(glDeleteProgram); assignFunction(glCreateProgram); assignFunction(glAttachShader); assignFunction(glDetachShader); assignFunction(glGetAttachedShaders); assignFunction(glGetUniformLocation); assignFunction(glGetActiveUniform); assignFunction(glGetProgramiv); assignFunction(glUseProgram); assignFunction(glValidateProgram); assignFunction(glGetAttribLocation); assignFunction(glUniform1f); assignFunction(glUniform2f); assignFunction(glUniform3f); assignFunction(glUniform4f); if (is30 || supportExtension("GL_EXT_gpu_shader4")) { logger->log1("found GL_EXT_gpu_shader4"); assignFunction(glBindFragDataLocation); } else { mSupportModernOpengl = false; logger->log1("GL_EXT_gpu_shader4 not supported"); } if (is41 || supportExtension("GL_ARB_separate_shader_objects")) { logger->log1("found GL_ARB_separate_shader_objects"); assignFunction(glProgramUniform1f); assignFunction(glProgramUniform2f); assignFunction(glProgramUniform3f); assignFunction(glProgramUniform4f); } else { logger->log1("GL_ARB_separate_shader_objects not supported"); } if (is43 || supportExtension("GL_ARB_vertex_attrib_binding")) { logger->log1("found GL_ARB_vertex_attrib_binding"); assignFunction(glBindVertexBuffer); assignFunction(glVertexAttribBinding); assignFunction(glVertexAttribFormat); assignFunction(glVertexAttribIFormat); } else { mSupportModernOpengl = false; logger->log1("GL_ARB_vertex_attrib_binding not supported"); } if (is44 || supportExtension("GL_ARB_multi_bind")) { logger->log1("found GL_ARB_multi_bind"); assignFunction(glBindVertexBuffers); } else { logger->log1("GL_ARB_multi_bind not supported"); } } else { mSupportModernOpengl = false; logger->log1("shaders not supported"); } #ifdef WIN32 assignFunctionARB(wglGetExtensionsString); #endif #endif } void GraphicsManager::updateLimits() { GLint value = 0; #ifdef __native_client__ mMaxVertices = 500; #else glGetIntegerv(GL_MAX_ELEMENTS_VERTICES, &value); logger->log("GL_MAX_ELEMENTS_VERTICES: %d", value); mMaxVertices = value; value = 0; glGetIntegerv(GL_MAX_ELEMENTS_INDICES, &value); logger->log("GL_MAX_ELEMENTS_INDICES: %d", value); if (value < mMaxVertices) mMaxVertices = value; if (!mMaxVertices) { logger->log("Got 0 max amount of vertices or indicies. " "Overriding to 500"); mMaxVertices = 500; } #endif value = 0; glGetIntegerv(GL_MAX_RENDERBUFFER_SIZE, &value); logger->log("Max FBO size: %d", value); mMaxFboSize = value; } void GraphicsManager::initOpenGL() { setGLVersion(); updateExtensions(); initOpenGLFunctions(); updatePlanformExtensions(); updateDebugLog(); createTextureSampler(); updateLimits(); } void GraphicsManager::createTextureSampler() { GLenum err = getLastError(); if (err) logger->log(errorToString(err)); if (mUseTextureSampler) { logger->log1("using texture sampler"); mglGenSamplers(1, &mTextureSampler); if (getLastError() != GL_NO_ERROR) { mUseTextureSampler = false; logger->log1("texture sampler error"); OpenGLImageHelper::setUseTextureSampler(mUseTextureSampler); return; } OpenGLImageHelper::initTextureSampler(mTextureSampler); mglBindSampler(0, mTextureSampler); if (getLastError() != GL_NO_ERROR) { mUseTextureSampler = false; logger->log1("texture sampler error"); } } OpenGLImageHelper::setUseTextureSampler(mUseTextureSampler); #ifndef ANDROID SafeOpenGLImageHelper::setUseTextureSampler(false); #endif } GLenum GraphicsManager::getLastError() { GLenum tmp = glGetError(); GLenum error = GL_NO_ERROR; while (tmp != GL_NO_ERROR) { error = tmp; mLastError = tmp; tmp = glGetError(); } return error; } std::string GraphicsManager::errorToString(const GLenum error) { if (error) { std::string errmsg("Unknown error"); switch (error) { case GL_INVALID_ENUM: errmsg = "GL_INVALID_ENUM"; break; case GL_INVALID_VALUE: errmsg = "GL_INVALID_VALUE"; break; case GL_INVALID_OPERATION: errmsg = "GL_INVALID_OPERATION"; break; case GL_STACK_OVERFLOW: errmsg = "GL_STACK_OVERFLOW"; break; case GL_STACK_UNDERFLOW: errmsg = "GL_STACK_UNDERFLOW"; break; case GL_OUT_OF_MEMORY: errmsg = "GL_OUT_OF_MEMORY"; break; default: break; } return errmsg; } return ""; } void GraphicsManager::logError() { const GLenum error = GraphicsManager::getLastError(); if (error != GL_NO_ERROR) logger->log(errorToString(error)); } void GraphicsManager::detectVideoSettings() { config.setValue("videodetected", true); TestMain *const test = startDetection(); if (test) { const Configuration &conf = test->getConfig(); int val = conf.getValueInt("opengl", -1); if (val >= 0 && val < CAST_S32(RENDER_LAST)) { config.setValue("opengl", val); val = conf.getValue("useTextureSampler", -1); if (val != -1) config.setValue("useTextureSampler", val); val = conf.getValue("compresstextures", -1); if (val != -1) config.setValue("compresstextures", val); } config.setValue("textureSize", conf.getValue("textureSize", "1024,1024,1024,1024,1024,1024")); config.setValue("testInfo", conf.getValue("testInfo", "")); delete test; } } static CALLBACK void debugCallback(GLenum source, GLenum type, GLuint id, GLenum severity, GLsizei length, const GLchar *text, GLvoid *userParam A_UNUSED) { std::string message("OPENGL:"); switch (source) { case GL_DEBUG_SOURCE_API: message.append(" API"); break; case GL_DEBUG_SOURCE_WINDOW_SYSTEM: message.append(" WM"); break; case GL_DEBUG_SOURCE_SHADER_COMPILER: message.append(" SHADERS"); break; case GL_DEBUG_SOURCE_THIRD_PARTY: message.append(" THIRD_PARTY"); break; case GL_DEBUG_SOURCE_APPLICATION: message.append(" APP"); break; case GL_DEBUG_SOURCE_OTHER: message.append(" OTHER"); break; default: message.append(" ?").append(toString(source)); break; } switch (type) { case GL_DEBUG_TYPE_ERROR: message.append(" ERROR"); break; case GL_DEBUG_TYPE_DEPRECATED_BEHAVIOR: message.append(" DEPRECATED"); break; case GL_DEBUG_TYPE_UNDEFINED_BEHAVIOR: message.append(" UNDEFINED"); break; case GL_DEBUG_TYPE_PORTABILITY: message.append(" PORTABILITY"); break; case GL_DEBUG_TYPE_PERFORMANCE: message.append(" PERFORMANCE"); break; case GL_DEBUG_TYPE_OTHER: message.append(" OTHER"); break; case GL_DEBUG_TYPE_MARKER: message.append(" MARKER"); break; case GL_DEBUG_TYPE_PUSH_GROUP: message.append(" PUSH GROUP"); break; case GL_DEBUG_TYPE_POP_GROUP: message.append(" POP GROUP"); break; default: message.append(" ?").append(toString(type)); break; } message.append(" ").append(toString(id)); switch (severity) { case GL_DEBUG_SEVERITY_NOTIFICATION: message.append(" N"); break; case GL_DEBUG_SEVERITY_HIGH: message.append(" H"); break; case GL_DEBUG_SEVERITY_MEDIUM: message.append(" M"); break; case GL_DEBUG_SEVERITY_LOW: message.append(" L"); break; default: message.append(" ?").append(toString(type)); break; } char *const buf = new char[CAST_SIZE(length + 1)]; memcpy(buf, text, length); buf[length] = 0; message.append(" ").append(buf); delete [] buf; logger->log(message); } void GraphicsManager::updateDebugLog() const { if (mSupportDebug && config.getIntValue("debugOpenGL")) { logger->log1("Enable OpenGL debug log"); glEnable(GL_DEBUG_OUTPUT); glEnable(GL_DEBUG_OUTPUT_SYNCHRONOUS); mglDebugMessageControl(GL_DONT_CARE, GL_DONT_CARE, GL_DONT_CARE, 0, nullptr, GL_TRUE); mglDebugMessageCallback(&debugCallback, this); } } #endif void GraphicsManager::detectPixelSize() { SDL_SysWMinfo info; SDL_VERSION(&info.version); if (SDL::getWindowWMInfo(mainGraphics->getWindow(), &info)) { #ifdef WIN32 HDC hdc = GetDC(info.window); if (hdc) { // SetProcessDPIAware(); mMaxWidth = GetDeviceCaps(hdc, HORZRES); mMaxHeight = GetDeviceCaps(hdc, VERTRES); mWidthMM = GetDeviceCaps(hdc, HORZSIZE); mHeightMM = GetDeviceCaps(hdc, VERTSIZE); } #elif defined USE_X11 Display *const display = info.info.x11.display; if (display) { Screen *const screen = XDefaultScreenOfDisplay(display); if (!screen) return; const int screenNum = XScreenNumberOfScreen(screen); mMaxWidth = DisplayWidth(display, screenNum); mMaxHeight = DisplayHeight(display, screenNum); mWidthMM = DisplayWidthMM(display, screenNum); mHeightMM = DisplayHeightMM(display, screenNum); } #endif } #if defined ANDROID #ifdef USE_SDL2 const int dpi = atoi(getenv("DISPLAY_DPI")); if (dpi <= 120) mDensity = 0; else if (dpi <= 160) mDensity = 1; else if (dpi <= 213) mDensity = 2; else if (dpi <= 240) mDensity = 3; else if (dpi <= 320) mDensity = 4; // else if (dpi <= 480) else mDensity = 5; mMaxWidth = atoi(getenv("DISPLAY_RESOLUTION_WIDTH")); mMaxHeight = atoi(getenv("DISPLAY_RESOLUTION_HEIGHT")); mWidthMM = atoi(getenv("DISPLAY_WIDTH_MM")); mHeightMM = atoi(getenv("DISPLAY_HEIGHT_MM")); #else SDL_ANDROID_GetMetrics(&mMaxWidth, &mMaxHeight, &mWidthMM, &mHeightMM, &mDensity); #endif #endif logger->log("screen size in pixels: %ux%u", mMaxWidth, mMaxHeight); logger->log("screen size in millimeters: %ux%u", mWidthMM, mHeightMM); logger->log("actual screen density: " + getDensityString()); const int density = config.getIntValue("screenDensity"); if (density > 0 && density <= densitySize) { mDensity = density - 1; logger->log("selected screen density: " + getDensityString()); } } std::string GraphicsManager::getDensityString() const { if (mDensity >= 0 && mDensity < densitySize) return densityNames[mDensity]; return ""; }