DOKK / manpages / debian 13 / libsdl3-doc / SDL_UpdateNVTexture.3.en
SDL_UpdateNVTexture(3) SDL3 FUNCTIONS SDL_UpdateNVTexture(3)

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

Defined in SDL3/SDL_render.h

#include "SDL3/SDL.h"
bool SDL_UpdateNVTexture(SDL_Texture *texture,
                     const SDL_Rect *rect,
                     const Uint8 *Yplane, int Ypitch,
                     const Uint8 *UVplane, int UVpitch);

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.

the texture to update.
a pointer to the rectangle of pixels to update, or NULL to update the entire texture.
the raw pixel data for the Y plane.
the number of bytes between rows of pixel data for the Y plane.
the raw pixel data for the UV plane.
the number of bytes between rows of pixel data for the UV plane.

Returns true on success or false on failure; call

SDL_GetError () for more information.

This function should only be called on the main thread.

This function is available since SDL 3.2.0.

(3), SDL_UpdateTexture(3), (3), SDL_UpdateYUVTexture(3)

SDL 3.2.10 Simple Directmedia Layer