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-rw-r--r--src/graphicsmanager.cpp144
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diff --git a/src/graphicsmanager.cpp b/src/graphicsmanager.cpp
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+/*
+ * The ManaPlus Client
+ * Copyright (C) 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/>.
+ */
+
+#include "graphicsmanager.h"
+
+#include "configuration.h"
+#include "graphics.h"
+#include "graphicsvertexes.h"
+#include "logger.h"
+
+#include "resources/image.h"
+
+#include "utils/stringutils.h"
+
+#include "debug.h"
+
+GraphicsManager graphicsManager;
+
+GraphicsManager::GraphicsManager()
+{
+}
+
+GraphicsManager::~GraphicsManager()
+{
+}
+
+void GraphicsManager::initGraphics(bool noOpenGL)
+{
+#ifdef USE_OPENGL
+ int useOpenGL = 0;
+ if (!noOpenGL)
+ useOpenGL = config.getIntValue("opengl");
+
+ // Setup image loading for the right image format
+ Image::setLoadAsOpenGL(useOpenGL);
+ GraphicsVertexes::setLoadAsOpenGL(useOpenGL);
+
+ // Create the graphics context
+ switch (useOpenGL)
+ {
+ case 0:
+ mainGraphics = new Graphics;
+ break;
+ case 1:
+ default:
+ mainGraphics = new OpenGLGraphics;
+ break;
+ case 2:
+ mainGraphics = new OpenGL1Graphics;
+ break;
+ };
+
+#else
+ // Create the graphics context
+ mainGraphics = new Graphics;
+#endif
+}
+
+void GraphicsManager::updateExtensions(const char *extensions)
+{
+ mExtensions.clear();
+ splitToStringSet(mExtensions, extensions, ' ');
+}
+
+bool GraphicsManager::supportExtension(const std::string ext)
+{
+ return mExtensions.find(ext) != mExtensions.end();
+}
+
+void GraphicsManager::updateTextureFormat()
+{
+#ifdef USE_OPENGL
+ if (!config.getBoolValue("compresstextures"))
+ return;
+
+ if (supportExtension("GL_ARB_texture_compression"))
+ {
+ if (supportExtension("GL_EXT_texture_compression_s3tc")
+ || supportExtension("3DFX_texture_compression_FXT1"))
+ {
+ GLint num;
+ GLint *formats = nullptr;
+ glGetIntegerv(GL_NUM_COMPRESSED_TEXTURE_FORMATS, &num);
+ logger->log("support %d compressed formats", num);
+ formats = new GLint[num > 10 ? num : 10];
+ glGetIntegerv(GL_COMPRESSED_TEXTURE_FORMATS, formats);
+ for (int f = 0; f < num; f ++)
+ {
+ if (formats[f] == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
+ {
+ delete []formats;
+ Image::setInternalTextureType(
+ GL_COMPRESSED_RGBA_S3TC_DXT5_EXT);
+ logger->log("using s3tc texture compression");
+ return;
+ }
+ else if (formats[f] == GL_COMPRESSED_RGBA_FXT1_3DFX)
+ {
+ delete []formats;
+ Image::setInternalTextureType(
+ GL_COMPRESSED_RGBA_FXT1_3DFX);
+ logger->log("using fxt1 texture compression");
+ return;
+ }
+ }
+ Image::setInternalTextureType(GL_COMPRESSED_RGBA_ARB);
+ logger->log("using texture compression");
+ }
+ else
+ {
+ Image::setInternalTextureType(GL_COMPRESSED_RGBA_ARB);
+ logger->log("using texture compression");
+ }
+ }
+#endif
+}
+
+void GraphicsManager::logString(const char *format, int num)
+{
+#ifdef USE_OPENGL
+ const char *str = reinterpret_cast<const char*>(glGetString(num));
+ if (!str)
+ logger->log(format, "?");
+ else
+ logger->log(format, str);
+#endif
+}