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/*
* The ManaPlus Client
* Copyright (C) 2004-2009 The Mana World Development Team
* Copyright (C) 2009-2010 The Mana Developers
* Copyright (C) 2011-2012 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 "resources/subimage.h"
#ifdef USE_OPENGL
#include "normalopenglgraphics.h"
#include "safeopenglgraphics.h"
#endif
#include "client.h"
#include "debug.h"
SubImage::SubImage(Image *parent, SDL_Surface *image,
int x, int y, int width, int height):
Image(image),
mParent(parent)
{
if (mParent)
{
mParent->incRef();
mParent->SDLTerminateAlphaCache();
mHasAlphaChannel = mParent->hasAlphaChannel();
mIsAlphaVisible = mHasAlphaChannel;
mAlphaChannel = mParent->SDLgetAlphaChannel();
#ifdef DEBUG_BIND_TEXTURE
mIdPath = parent->getIdPath();
#endif
}
else
{
mHasAlphaChannel = false;
mIsAlphaVisible = false;
mAlphaChannel = nullptr;
}
// Set up the rectangle.
mBounds.x = static_cast<short>(x);
mBounds.y = static_cast<short>(y);
mBounds.w = static_cast<uint16_t>(width);
mBounds.h = static_cast<uint16_t>(height);
if (mParent)
{
mInternalBounds.x = mParent->mBounds.x;
mInternalBounds.y = mParent->mBounds.y;
mInternalBounds.w = mParent->mBounds.w;
mInternalBounds.h = mParent->mBounds.h;
}
else
{
mInternalBounds.x = 0;
mInternalBounds.y = 0;
mInternalBounds.w = 1;
mInternalBounds.h = 1;
}
mUseAlphaCache = false;
}
#ifdef USE_OPENGL
SubImage::SubImage(Image *parent, GLuint image,
int x, int y, int width, int height,
int texWidth, int texHeight):
Image(image, width, height, texWidth, texHeight),
mParent(parent)
{
if (mParent)
mParent->incRef();
// Set up the rectangle.
mBounds.x = static_cast<short>(x);
mBounds.y = static_cast<short>(y);
mBounds.w = static_cast<uint16_t>(width);
mBounds.h = static_cast<uint16_t>(height);
if (mParent)
{
mInternalBounds.x = mParent->mBounds.x;
mInternalBounds.y = mParent->mBounds.y;
mInternalBounds.w = mParent->mBounds.w;
mInternalBounds.h = mParent->mBounds.h;
#ifdef DEBUG_BIND_TEXTURE
mIdPath = parent->getIdPath();
#endif
}
else
{
mInternalBounds.x = 0;
mInternalBounds.y = 0;
mInternalBounds.w = 1;
mInternalBounds.h = 1;
}
mIsAlphaVisible = mHasAlphaChannel;
}
#endif
SubImage::~SubImage()
{
// Avoid destruction of the image
mSDLSurface = nullptr;
// Avoid possible destruction of its alpha channel
mAlphaChannel = nullptr;
#ifdef USE_OPENGL
mGLImage = 0;
#endif
if (mParent)
{
mParent->decRef();
mParent = nullptr;
}
}
Image *SubImage::getSubImage(int x, int y, int w, int h)
{
if (mParent)
return mParent->getSubImage(mBounds.x + x, mBounds.y + y, w, h);
else
return nullptr;
}
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