Picture PictureBank::makePicture(SDL_Surface *surface, const std::string& resource_name) const
{
Point offset( 0, 0 );
// decode the picture name => to set the offset manually
// resource_name = "buildings/Govt_00005.png"
int dot_pos = resource_name.find('.');
std::string filename = resource_name.substr(0, dot_pos);
Point pic_info = PictureInfoBank::instance().getOffset(filename);
if (pic_info.getX() == -1 && pic_info.getY() == -1)
{
// this is a tiled picture=> automatic offset correction
offset.setY( surface->h-15*((surface->w+2)/60) ); // (w+2)/60 is the size of the tile: (1x1, 2x2, 3x3, ...)
}
else if (pic_info.getX() == -2 && pic_info.getY() == -2)
{
// this is a walker picture=> automatic offset correction
offset = Point( -surface->w/2, int(surface->h*3./4.) );
}
else
{
offset = pic_info;
}
Picture pic;
pic.init( surface, offset );
pic.setName(filename);
return pic;
}
void SdlEngine::loadPicture(Picture& ioPicture, bool streaming)
{
if( !ioPicture.surface() )
{
Size size = ioPicture.size();
Logger::warning( StringHelper::format( 0xff, "SdlEngine:: can't make surface, size=%dx%d", size.width(), size.height() ) );
}
SDL_Texture* tx = 0;
if( streaming )
{
tx = SDL_CreateTexture(_d->renderer, SDL_PIXELFORMAT_ARGB8888, SDL_TEXTUREACCESS_STREAMING, ioPicture.width(), ioPicture.height() );
}
else
{
tx = SDL_CreateTextureFromSurface(_d->renderer, ioPicture.surface());
}
if( !tx )
{
Logger::warning( "SdlEngine: cannot create texture from surface" + ioPicture.name() );
}
ioPicture.init( tx, ioPicture.surface(), 0 );
if( streaming )
{
ioPicture.update();
}
SDL_SetTextureBlendMode( ioPicture.texture(), SDL_BLENDMODE_BLEND );
SDL_SetSurfaceBlendMode( ioPicture.surface(), SDL_BLENDMODE_BLEND );
}
Picture operator|(const Picture& p, const Picture& q)
{
Picture r;
r.init(Picture::max(p.height,q.height),p.width + q.width);
r.clear(p.height,0,r.height,q.width);
r.clear(q.height,p.width,r.height,r.width);
r.copyblock(0,0,p);
r.copyblock(0,p.width,q);
return r;
}
Picture operator&(const Picture& p, const Picture& q)
{
Picture r;
r.init(p.height + q.height, Picture::max(p.width ,q.width));
r.clear(0,p.width,p.height,r.width);
r.clear(p.height,q.width,r.height,r.width);
r.copyblock(0,0,p);
r.copyblock(p.height,0,q);
return r;
}
void Font::draw(Picture& dstpic, const std::string &text, const int dx, const int dy, bool useAlpha )
{
if( !_d->ttfFont || !dstpic.isValid() )
return;
SDL_Surface* sText = TTF_RenderUTF8_Blended( _d->ttfFont, text.c_str(), _d->color );
if( sText && useAlpha )
{
SDL_SetAlpha( sText, 0, 0 );
}
if( sText )
{
Picture pic;
pic.init( sText, Point( 0, 0 ) );
dstpic.draw( pic, dx, dy);
}
SDL_FreeSurface( sText );
}
Picture frame(const Picture& p)
{
Picture r;
r.init(p.height + 2, p.width + 2);
for(int i = 1; i < r.height -1; ++i)
{
r.position(i,0) = '|';
r.position(i, r.width - 1) = '|';
}
for(int j = 1; j < r.width - 1; ++j)
{
r.position(0, j) = '-';
r.position(r.height - 1, j) = '-';
}
r.position(0, 0) = '+';
r.position(0, r.width-1) = '+';
r.position(r.height-1, 0)= '+';
r.position(r.height-1,r.width-1)='+';
r.copyblock(1,1,p);
return r;
}
Picture* Picture::createCopy() const
{
if( !_d->surface )
{
_OC3_DEBUG_BREAK_IF( "No surface for duplicate" );
return GfxEngine::instance().createPicture( Size( 100 ) );
}
int width = _d->surface->w;
int height = _d->surface->h;
SDL_Surface* img = SDL_ConvertSurface( _d->surface, _d->surface->format, SDL_SWSURFACE);
if (img == NULL)
{
THROW("Cannot make surface, size=" << width << "x" << height);
}
Picture* newpic = GfxEngine::instance().createPicture( Size( width, height ) );
newpic->init(img, _d->offset );
return newpic;
}
void PictureBank::loadArchive( const std::string &filename, GfxEngine& engine )
{
std::cout << "reading image archive: " << filename << std::endl;
struct archive *a;
struct archive_entry *entry;
int rc;
a = archive_read_new();
archive_read_support_compression_all(a);
archive_read_support_format_all(a);
rc = archive_read_open_filename(a, filename.c_str(), 16384); // block size
if (rc != ARCHIVE_OK)
{
THROW("Cannot open archive " << filename);
}
SDL_Surface *surface;
SDL_RWops *rw;
const Uint32 bufferSize = 10000000; // allocated buffer
std::auto_ptr< Uint8 > buffer( new Uint8[ bufferSize ] );
if( buffer.get() == 0 )
THROW("Memory error, cannot allocate buffer size " << bufferSize);
std::string entryname;
Picture tmpPicture;
while( archive_read_next_header(a, &entry) == ARCHIVE_OK )
{
// for all entries in archive
entryname = archive_entry_pathname(entry);
if ((archive_entry_stat(entry)->st_mode & S_IFREG) == 0)
{
// not a regular file (maybe a directory). skip it.
continue;
}
if (archive_entry_stat(entry)->st_size >= bufferSize)
{
THROW("Cannot load archive: file is too big " << entryname << " in archive " << filename);
}
int size = archive_read_data(a, buffer.get(), bufferSize); // read data into buffer
rw = SDL_RWFromMem(buffer.get(), size);
surface = IMG_Load_RW(rw, 0);
SDL_SetAlpha( surface, 0, 0 );
tmpPicture.init( surface, Point() );
engine.loadPicture( tmpPicture );
setPicture( entryname, tmpPicture );
SDL_FreeRW(rw);
}
rc = archive_read_finish(a);
if (rc != ARCHIVE_OK)
{
THROW("Error while reading archive " << filename);
}
}
