TCODColor TCODImage::getMipmapPixel(float x0,float y0, float x1, float y1) { return TCOD_image_get_mipmap_pixel(data,x0,y0,x1,y1); }
colornum_t TCOD_image_get_mipmap_pixel_wrapper(TCOD_image_t image, float x0,float y0, float x1, float y1) { return color_to_int(TCOD_image_get_mipmap_pixel (image, x0, y0, x1, y1)); }
void TCOD_image_blit(TCOD_image_t image, TCOD_console_t console, float x, float y, TCOD_bkgnd_flag_t bkgnd_flag, float scalex, float scaley, float angle) { int width,height; image_data_t *img=(image_data_t *)image; if ( scalex == 0.0f || scaley == 0.0f || bkgnd_flag == TCOD_BKGND_NONE ) return; TCOD_image_get_size(image,&width,&height); if ( scalex == 1.0f && scaley == 1.0f && angle == 0.0f && x-((int)x) == 0.0f && y-((int)y)==0.0f) { // clip the image int ix = (int)(x - width*0.5f); int iy = (int)(y - height*0.5f); int minx=MAX(ix,0); int miny=MAX(iy,0); int maxx=MIN(ix+width,TCOD_console_get_width(console)); int maxy=MIN(iy+height,TCOD_console_get_height(console)); int offx=0,offy=0; int cx,cy; if ( ix < 0 ) offx=-ix; if ( iy < 0 ) offy=-iy; for (cx=minx; cx < maxx; cx ++) { for (cy=miny; cy < maxy; cy ++) { TCOD_color_t col=TCOD_image_get_pixel(image,cx-minx+offx,cy-miny+offy); if ( !img->has_key_color || img->key_color.r != col.r || img->key_color.g != col.g || img->key_color.b != col.b ) { TCOD_console_set_back(console,cx,cy,col,bkgnd_flag); } } } } else { float iw=width/2*scalex; float ih=height/2*scaley; // get the coordinates of the image corners in the console float newx_x = cosf(angle); float newx_y = -sinf(angle); float newy_x = newx_y; float newy_y = -newx_x; float x0,y0,x1,y1,x2,y2,x3,y3; // image corners coordinates int rx,ry,rw,rh; // rectangular area in the console int cx,cy; int minx,miny,maxx,maxy; float invscalex,invscaley; // 0 = P - w/2 x' +h/2 y' x0 = x-iw*newx_x+ih*newy_x; y0 = y-iw*newx_y+ih*newy_y; // 1 = P + w/2 x' + h/2 y' x1 = x+iw*newx_x+ih*newy_x; y1 = y+iw*newx_y+ih*newy_y; // 2 = P + w/2 x' - h/2 y' x2 = x+iw*newx_x-ih*newy_x; y2 = y+iw*newx_y-ih*newy_y; // 3 = P - w/2 x' - h/2 y' x3 = x-iw*newx_x-ih*newy_x; y3 = y-iw*newx_y-ih*newy_y; // get the affected rectangular area in the console rx=(int)(MIN(MIN(x0,x1),MIN(x2,x3))); ry=(int)(MIN(MIN(y0,y1),MIN(y2,y3))); rw=(int)(MAX(MAX(x0,x1),MAX(x2,x3))) - rx; rh=(int)(MAX(MAX(y0,y1),MAX(y2,y3))) - ry; // clip it minx=MAX(rx,0); miny=MAX(ry,0); maxx=MIN(rx+rw,TCOD_console_get_width(console)); maxy=MIN(ry+rh,TCOD_console_get_height(console)); invscalex=1.0f / scalex; invscaley=1.0f / scaley; for (cx=minx; cx < maxx; cx ++) { for (cy=miny; cy < maxy; cy ++) { float ix,iy; TCOD_color_t col; // map the console pixel to the image world ix = (iw+ (cx-x) * newx_x + (cy-y) *(-newy_x))*invscalex; iy = (ih + (cx-x) * (newx_y) - (cy-y)*newy_y)*invscaley; col = TCOD_image_get_pixel(image,(int)(ix),(int)(iy)); if ( !img->has_key_color || img->key_color.r != col.r || img->key_color.g != col.g || img->key_color.b != col.b ) { if ( scalex < 1.0f || scaley < 1.0f ) { col = TCOD_image_get_mipmap_pixel(image,ix,iy,ix+1.0f,iy+1.0f); } TCOD_console_set_back(console,cx,cy,col,bkgnd_flag); } } } } }