Update a rectangle within a planar NV12 or NV21 texture with new pixels.
int SDL_UpdateNVTexture(SDL_Texture * texture, const SDL_Rect * rect, const Uint8 *Yplane, int Ypitch, const Uint8 *UVplane, int UVpitch);
|texture||the texture to update|
|rect||a pointer to the rectangle of pixels to update, or NULL to update the entire texture.|
|Yplane||the raw pixel data for the Y plane.|
|Ypitch||the number of bytes between rows of pixel data for the Y plane.|
|UVplane||the raw pixel data for the UV plane.|
|UVpitch||the number of bytes between rows of pixel data for the UV plane.|
Return 0 on success, or -1 if the texture is not valid.
You can use SDL_UpdateTexture() as long as your pixel data is a contiguous block of NV12/21 planes in the proper order, but this function is available if your pixel data is not contiguous.
This function is available since SDL 2.0.16.