case Bitmap::MODE_TRANS : return globalBlend.alpha;
default : return 255;
}
}
static void paintown_applyTrans16(SDL_Surface * dst, const int color);
static void paintown_replace16(SDL_Surface * dst, const int original, const int replace);
static void paintown_draw_sprite_ex16(SDL_Surface * dst, SDL_Surface * src, int dx, int dy, int mode, int flip );
static void paintown_draw_sprite_filter_ex16(SDL_Surface * dst, SDL_Surface * src, int x, int y, const Bitmap::Filter & filter);
static void paintown_light16(SDL_Surface * dst, const int x, const int y, int width, int height, const int start_y, const int focus_alpha, const int edge_alpha, const int focus_color, const int edge_color);
static void doBlit(SDL_Surface * mine, const int mx, const int my, const int width, const int height, const int wx, const int wy, const Bitmap & where ){
void Bitmap::Stretch( const Bitmap & where, const int sourceX, const int sourceY, const int sourceWidth, const int sourceHeight, const int destX, const int destY, const int destWidth, const int destHeight ) const {
PAINTOWN_PIXEL_PTR s = PAINTOWN_OFFSET_PIXEL_PTR(src->line[sybeg + y], sxbeg);
PAINTOWN_PIXEL_PTR d = PAINTOWN_OFFSET_PIXEL_PTR(bmp_write_line(dst, dybeg + y * y_dir), dxbeg);
for (x = w - 1; x >= 0; PAINTOWN_INC_PIXEL_PTR(s), PAINTOWN_INC_PIXEL_PTR_EX(d,x_dir), x--) {
unsigned long c = PAINTOWN_GET_MEMORY_PIXEL(s);
if (!PAINTOWN_IS_SPRITE_MASK(src, c)) {
switch( mode ){
case Bitmap::SPRITE_NORMAL : break;
case Bitmap::SPRITE_LIT : {
c = PAINTOWN_DLSX_BLEND(lit_blender, c);
break;
}
case Bitmap::SPRITE_TRANS : {
c = PAINTOWN_DTS_BLEND(trans_blender, PAINTOWN_GET_PIXEL(d), c);
break;
}
}
PAINTOWN_PUT_MEMORY_PIXEL(d, c);
}
}
}
#endif
}
if (SDL_MUSTLOCK(src)){
SDL_UnlockSurface(src);
}
if (SDL_MUSTLOCK(dst)){
SDL_UnlockSurface(dst);
}
}
/* ultra special-case for drawing a light (like from a lamp).
* center of light is x,y and shines in a perfect isosolese triangle.
*/
static void paintown_light16(SDL_Surface * dst, const int x, const int y, int width, int height, const int start_y, const int focus_alpha, const int edge_alpha, const int focus_color, const int edge_color){
if (width > dst->w){
width = dst->w;
}
if (height > dst->h){
height = dst->h;
}
int dxbeg = x - width;
int x_dir = 1;
unsigned char * alphas = new unsigned char[width];