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/***************************************************************************
textfile_evaluation.cpp - description
-------------------
begin : Thu Oct 06 2002
copyright : (C) 2002 by Martin Bickel
email : bickel@asc-hq.org
***************************************************************************/
/***************************************************************************
* *
* 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 *
* (at your option) any later version. *
* *
***************************************************************************/
#include <vector>
#include <algorithm>
#include <iostream>
#include <SDL_image.h>
#include <boost/regex.hpp>
#include "global.h"
#include "ascstring.h"
#include "fieldimageloader.h"
#include "typen.h"
#include "graphics/blitter.h"
#include "basestreaminterface.h"
#include "stringtokenizer.h"
#include "graphics/surface2png.h"
const char* fileNameDelimitter = " =*/+<>,";
void snowify( Surface& s, bool adaptive )
{
if ( !s.valid() )
return;
if ( s.GetPixelFormat().BitsPerPixel() != 32 )
return;
const int targetWhite = 210;
float avg = 0;
if ( adaptive ) {
for ( int y = 0; y < s.h(); ++y ) {
const char* c = (char*) s.pixels();
c += y * s.pitch();
for ( int x = 0; x < s.w(); ++x ) {
uint32_t* i = (uint32_t*) c;
avg += ((*i >> s.GetPixelFormat().Rshift()) & 0xff )
+ ((*i >> s.GetPixelFormat().Gshift()) & 0xff )
+ ((*i >> s.GetPixelFormat().Bshift()) & 0xff ) ;
c += 4;
}
}
avg /= float(s.h() * s.w() * 3);
} else
avg = 150;
for ( int y = 0; y < s.h(); ++y ) {
char* c = (char*) s.pixels();
c += y * s.pitch();
for ( int x = 0; x < s.w(); ++x ) {
uint32_t* i = (uint32_t*) c;
if ( ((*i >> s.GetPixelFormat().Ashift()) & 0xff ) != Surface::transparent ) {
int v = ((*i >> s.GetPixelFormat().Rshift()) & 0xff )
+ ((*i >> s.GetPixelFormat().Gshift()) & 0xff )
+ ((*i >> s.GetPixelFormat().Bshift()) & 0xff ) ;
v /= 3;
int nv = targetWhite + ( v - int(avg)) * (255-targetWhite) / 64;
if ( nv > 255)
nv = 255;
if ( nv < 0 )
nv = 0;
*i = (nv << s.GetPixelFormat().Rshift()) | (nv << s.GetPixelFormat().Gshift() ) | (nv << s.GetPixelFormat().Bshift()) | (*i & s.GetPixelFormat().Amask() );
}
c += 4;
}
}
}
bool imageEmpty( const Surface& s )
{
bool allWhite = true;
bool allTransparent = true;
int amask = s.GetPixelFormat().Amask();
int areference = Surface::transparent << s.GetPixelFormat().Ashift();
int colmask = s.GetPixelFormat().Rmask() | s.GetPixelFormat().Gmask() | s.GetPixelFormat().Bmask();
int colref = (0xff << s.GetPixelFormat().Rshift()) | (0xff << s.GetPixelFormat().Gshift()) | (0xff << s.GetPixelFormat().Bshift());
for ( int y = 0; y < s.h(); ++y ) {
const char* c = (char*) s.pixels();
c += y * s.pitch();
for ( int x = 0; x < s.w(); ++x ) {
const uint32_t* i = (uint32_t*) c;
if( (*i & amask) != areference )
allTransparent = false;
if ( (*i & colmask) != colref )
allWhite = false;
c += 4;
}
if ( !allWhite && !allTransparent )
return false;
}
return allWhite || allTransparent;
}
vector<Surface> loadASCFieldImageArray ( const ASCString& file, int num )
{
vector<Surface> images;
tnfilestream fs ( file, tnstream::reading );
Surface s ( IMG_Load_RW ( SDL_RWFromStream( &fs ), 1));
if ( !s.valid() )
fatalError("could not read image " + file );
if ( s.GetPixelFormat().BitsPerPixel() == 8 )
s.assignDefaultPalette();
int depth = s.GetPixelFormat().BitsPerPixel();
for ( int i = 0; i < num; i++ ) {
int x1 = (i % 10) * 100;
int y1 = (i / 10) * 100;
if ( depth > 8 && depth < 32 )
depth = 32;
Surface s2 = Surface::createSurface(fieldsizex,fieldsizey, depth );
if ( s2.GetPixelFormat().BitsPerPixel() != 8 || s.GetPixelFormat().BitsPerPixel() != 8 ) {
bool colorKeyAllowed = false;
static boost::regex pcx( ".*\\.pcx$");
boost::smatch what;
if( boost::regex_match( copytoLower(file) , what, pcx)) {
// warningMessage("Truecolor PCX image detected: " + file);
colorKeyAllowed = true;
}
if ( s.GetPixelFormat().BitsPerPixel() == 32 ) {
MegaBlitter<4,4,ColorTransform_None,ColorMerger_PlainOverwrite,SourcePixelSelector_Rectangle > blitter;
blitter.setSrcRectangle(SDLmm::SRect(SPoint(x1,y1),fieldsizex,fieldsizey));
blitter.blit( s, s2, SPoint(0,0) );
} else {
s2.Blit( s, SDLmm::SRect(SPoint(x1,y1),fieldsizex,fieldsizey), SPoint(0,0));
}
applyLegacyFieldMask(s2,0,0, colorKeyAllowed);
if ( colorKeyAllowed )
s2.ColorKey2AlphaChannel();
s2.detectColorKey();
if ( depth != 32 || imageEmpty(s2))
images.push_back( Surface() );
else
images.push_back ( s2 );
} else {
// we don't want any transformations from one palette to another; we just assume that all 8-Bit images use the same colorspace
MegaBlitter<1,1,ColorTransform_None,ColorMerger_AlphaOverwrite,SourcePixelSelector_Rectangle > blitter;
blitter.setSrcRectangle(SDLmm::SRect(SPoint(x1,y1),fieldsizex,fieldsizey));
blitter.blit( s, s2, SPoint(0,0) );
applyFieldMask(s2);
s2.detectColorKey();
images.push_back ( s2 );
}
}
return images;
}
Surface loadASCFieldImage ( const ASCString& file, bool applyFieldMaskToImage )
{
StringTokenizer st ( file, fileNameDelimitter );
FileName fn = st.getNextToken();
fn.toLower();
displayLogMessage ( 6, "loading file " + file + "\n" );
if ( fn.suffix() == "png" ) {
SDLmm::Surface* s = NULL;
do {
tnfilestream fs ( fn, tnstream::reading );
RWOPS_Handler rwo( SDL_RWFromStream( &fs ) );
SDLmm::Surface s2 ( IMG_LoadPNG_RW ( rwo.Get() ));
rwo.Close();
// s2.SetAlpha ( SDL_SRCALPHA, SDL_ALPHA_OPAQUE );
if ( !s )
s = new SDLmm::Surface ( s2 );
else {
int res = s->Blit ( s2 );
if ( res < 0 )
warningMessage ( "ImageProperty::operation_eq - couldn't blit surface "+fn);
}
fn = st.getNextToken();
} while ( !fn.empty() );
if ( s ) {
Surface s3( *s );
if ( applyFieldMaskToImage )
applyFieldMask(s3,0,0,false);
delete s;
return s3;
} else
return Surface();
} else
if ( fn.suffix() == "pcx" ) {
SDL_Surface* surface;
{
tnfilestream fs ( fn, tnstream::reading );
RWOPS_Handler rwo ( SDL_RWFromStream( &fs ));
surface = IMG_LoadPCX_RW ( rwo.Get() );
rwo.Close();
}
if ( !surface )
errorMessage( "error loading file " + fn );
Surface s ( surface );
if ( s.GetPixelFormat().BitsPerPixel() == 8)
s.SetColorKey( SDL_SRCCOLORKEY, 255 );
/*
else
s.SetColorKey( SDL_SRCCOLORKEY, 0xfefefe );
s.SetAlpha(SDL_SRCALPHA,SDL_ALPHA_OPAQUE);
*/
fn = st.getNextToken();
while ( !fn.empty() ) {
tnfilestream fs ( fn, tnstream::reading );
RWOPS_Handler rwo( SDL_RWFromStream( &fs ) );
SDLmm::Surface s2 ( IMG_LoadPNG_RW ( rwo.Get() ));
rwo.Close();
int res = s.Blit ( s2 );
if ( res < 0 )
warningMessage ( "ImageProperty::operation_eq - couldn't blit surface "+fn);
fn = st.getNextToken();
}
if ( applyFieldMaskToImage )
if ( s.w() >= fieldsizex && s.h() >= fieldsizey )
applyFieldMask(s,0,0,false);
return s;
}
throw ASCexception();
}
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