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/* _______ __ __ __ ______ __ __ _______ __ __
* / _____/\ / /\ / /\ / /\ / ____/\ / /\ / /\ / ___ /\ / |\/ /\
* / /\____\// / // / // / // /\___\// /_// / // /\_/ / // , |/ / /
* / / /__ / / // / // / // / / / ___ / // ___ / // /| ' / /
* / /_// /\ / /_// / // / // /_/_ / / // / // /\_/ / // / | / /
* /______/ //______/ //_/ //_____/\ /_/ //_/ //_/ //_/ //_/ /|_/ /
* \______\/ \______\/ \_\/ \_____\/ \_\/ \_\/ \_\/ \_\/ \_\/ \_\/
*
* Copyright (c) 2004 - 2008 Olof Naess�n and Per Larsson
*
*
* Per Larsson a.k.a finalman
* Olof Naess�n a.k.a jansem/yakslem
*
* Visit: http://guichan.sourceforge.net
*
* License: (BSD)
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name of Guichan nor the names of its contributors may
* be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*
* For comments regarding functions please see the header file.
*/
#include "guichan/sdl/sdlimage.hpp"
#include "guichan/exception.hpp"
#include "guichan/sdl/sdlpixel.hpp"
namespace gcn
{
SDLImage::SDLImage(SDL_Surface* surface, bool autoFree)
{
mAutoFree = autoFree;
mSurface = surface;
}
SDLImage::~SDLImage()
{
if (mAutoFree)
free();
}
SDL_Surface* SDLImage::getSurface() const
{
return mSurface;
}
int SDLImage::getWidth() const
{
if (mSurface == NULL)
{
throw GCN_EXCEPTION("Trying to get the width of "
"a non loaded image.");
}
return mSurface->w;
}
int SDLImage::getHeight() const
{
if (mSurface == NULL)
{
throw GCN_EXCEPTION("Trying to get the height of "
"a non loaded image.");
}
return mSurface->h;
}
Color SDLImage::getPixel(int x, int y)
{
if (mSurface == NULL)
{
throw GCN_EXCEPTION("Trying to get a pixel from a "
"non loaded image.");
}
return SDLgetPixel(mSurface, x, y);
}
void SDLImage::putPixel(int x, int y, const Color& color)
{
if (mSurface == NULL)
{
throw GCN_EXCEPTION("Trying to put a pixel in a "
"non loaded image.");
}
SDLputPixel(mSurface, x, y, color);
}
void SDLImage::convertToDisplayFormat()
{
if (mSurface == NULL)
{
throw GCN_EXCEPTION("Trying to convert a non loaded image "
"to display format.");
}
int i;
bool hasPink = false;
bool hasAlpha = false;
for (i = 0; i < mSurface->w * mSurface->h; ++i)
{
if (((unsigned int*)mSurface->pixels)[i] == SDL_MapRGB(
mSurface->format, 255, 0, 255))
{
hasPink = true;
break;
}
}
for (i = 0; i < mSurface->w * mSurface->h; ++i)
{
Uint8 r, g, b, a;
SDL_GetRGBA(((unsigned int*)mSurface->pixels)[i], mSurface->format,
&r, &g, &b, &a);
if (a != 255)
{
hasAlpha = true;
break;
}
}
SDL_Surface *tmp;
if (hasAlpha)
{
tmp = SDL_DisplayFormatAlpha(mSurface);
SDL_FreeSurface(mSurface);
mSurface = NULL;
}
else
{
tmp = SDL_DisplayFormat(mSurface);
SDL_FreeSurface(mSurface);
mSurface = NULL;
}
if (tmp == NULL)
throw GCN_EXCEPTION("Unable to convert image to display format.");
if (hasPink)
{
SDL_SetColorKey(tmp, SDL_SRCCOLORKEY,
SDL_MapRGB(tmp->format, 255, 0, 255));
}
if (hasAlpha)
{
SDL_SetAlpha(tmp, SDL_SRCALPHA, 255);
}
mSurface = tmp;
}
void SDLImage::free()
{
SDL_FreeSurface(mSurface);
}
}
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