SDL_SoftStretch函数

已经被函数SDL_BlitScaled()替换。缓冲区进行缩放之后拷贝到目标表面。

extern DECLSPEC int SDLCALL SDL_SoftStretch(SDL_Surface *src, SDL_Rect *srcrect,
                                    SDL_Surface *dst, SDL_Rect *dstrect);

例子：

//
		// Draw the backup buffer to the screen
		//
		dstrect.x = 0;
		dstrect.y = screenRealY;
		dstrect.w = gpScreenReal->w;
		dstrect.h = screenRealHeight;

		SDL_SoftStretch(gpScreenBak, NULL, gpScreenReal, &dstrect);
		SDL_UpdateRect(gpScreenReal, 0, 0, gpScreenReal->w, gpScreenReal->h);