(This is the documentation for SDL3, which is under heavy development and the API is changing! SDL2 is the current stable version!)

SDL_UpdateNVTexture

Update a rectangle within a planar NV12 or NV21 texture with new pixels.

Header File

Syntax

int SDL_UpdateNVTexture(SDL_Texture *texture,
                     const SDL_Rect *rect,
                     const Uint8 *Yplane, int Ypitch,
                     const Uint8 *UVplane, int UVpitch);

Function Parameters

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 Value

Returns 0 on success or a negative error code on failure; call SDL_GetError() for more information.

Remarks

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.

Version

This function is available since SDL 3.0.0.