// load a 32-bit RGBA TGA file into sprite 's', and add colors to the palette
// as needed so that it can be shown exactly as found in the file.
// returns nonzero on failure.
char CEGASprit::LoadTGASprite( const std::string &filename, CSprite &sprite )
{
byte *image, *base;
int x,y;
Uint16 w,h;
unsigned char r,g,b,a;
int c;
Uint8 *pixel, *maskpx;
// Look in local location than in global, if tga was not found!
if (!LoadTGA(filename, &image, w, h))
return 1;
base = image;
sprite.setSize(w, h);
sprite.createSurface( g_pVideoDriver->mp_VideoEngine->getBlitSurface()->flags, g_pGfxEngine->Palette.m_Palette );
SDL_Surface *sfc = sprite.getSDLSurface();
SDL_Surface *msksfc = sprite.getSDLMaskSurface();
if(SDL_MUSTLOCK(sfc)) SDL_LockSurface(sfc);
if(SDL_MUSTLOCK(msksfc)) SDL_LockSurface(msksfc);
pixel = (Uint8*) sfc->pixels;
maskpx = (Uint8*) msksfc->pixels;
for(y=h-1;y>=0;y--)
{
for(x=0;x<w;x++)
{
b = *image++; g = *image++; r = *image++; a = *image++;
if (a & 128)
{
c = g_pGfxEngine->Palette.getcolor(r, g, b);
if (c==-1) c = g_pGfxEngine->Palette.addcolor(r, g, b);
if (c==-1) return 1;
pixel[y*w + x] = c;
maskpx[y*w + x] = 15;
}
else
maskpx[y*w + x] = 0;
}
}
if(SDL_MUSTLOCK(msksfc)) SDL_UnlockSurface(msksfc);
if(SDL_MUSTLOCK(sfc)) SDL_UnlockSurface(sfc);
sprite.m_bboxX1=0;
sprite.m_bboxY1=0;
sprite.m_bboxX2=sprite.getWidth();
sprite.m_bboxY2=sprite.getHeight();
delete [] base;
return 0;
}
void CSprite::copy( CSprite &Destination, SDL_Color *Palette )
{
Destination.m_bboxX1 = m_bboxX1;
Destination.m_bboxY1 = m_bboxY1;
Destination.m_bboxX2 = m_bboxX2;
Destination.m_bboxY2 = m_bboxY2;
Destination.setSize(m_xsize, m_ysize);
Destination.createSurface( mpSurface->flags, Palette );
SDL_FillRect(Destination.getSDLSurface(), NULL, COLORKEY);
SDL_BlitSurface( mpSurface.get(), NULL, Destination.getSDLSurface(), NULL);
}
void CEGASprit::CreateYellowSpriteofTile( CTilemap &tilemap, Uint16 tile, CSprite& sprite )
{
SDL_Rect tile_rect;
tile_rect.x = 16*(tile%13);
tile_rect.y = 16*(tile/13);
tile_rect.w = tile_rect.h= 16;
sprite.setSize(tile_rect.w, tile_rect.h);
sprite.createSurface( g_pVideoDriver->mp_VideoEngine->getBlitSurface()->flags,
g_pGfxEngine->Palette.m_Palette );
sprite.optimizeSurface();
SDL_Surface *src_sfc = sprite.getSDLSurface();
SDL_BlitSurface(tilemap.getSDLSurface(), &tile_rect, src_sfc, NULL);
if(SDL_MUSTLOCK(src_sfc)) SDL_LockSurface(src_sfc);
if(src_sfc->format->BitsPerPixel == 8) return;
// The first pixel is usually the transparent one on items. Use it!
Uint8* pixel = (Uint8*)src_sfc->pixels;
Uint32 transparent_colour;
Uint32 colour;
Uint8 r,g,b,a;
memcpy(&transparent_colour, pixel, src_sfc->format->BytesPerPixel);
for(Uint8 x=0 ; x<16 ; x++)
{
for(Uint8 y=0 ; y<16 ; y++)
{
memcpy(&colour, pixel, src_sfc->format->BytesPerPixel);
SDL_GetRGBA( colour, src_sfc->format, &r, &g, &b, &a );
if( colour == transparent_colour )
a = 0;
if( r!=0 && g!=0 && b!=0 && a!=0)
r = g = 255;
colour = SDL_MapRGBA( src_sfc->format, r, g, b, a );
memcpy( pixel, &colour ,src_sfc->format->BytesPerPixel);
pixel += src_sfc->format->BytesPerPixel;
}
}
if(SDL_MUSTLOCK(src_sfc)) SDL_UnlockSurface(src_sfc);
}
