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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
}
void GraphicsManager::setVideoMode()
{
const int width = config.getIntValue("screenwidth");
const int height = config.getIntValue("screenheight");
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");
// Try to set the desired video mode
if (!mainGraphics->setVideoMode(width, height, 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, bpp,
oldFullscreen, hwaccel, enableResize, noFrame))
{
logger->safeError(strprintf("Couldn't restore %dx%dx%d "
"video mode: %s", oldWidth, oldHeight, bpp,
SDL_GetError()));
}
}
}
}
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