(This is the legacy documentation for stable SDL2, the current stable version; SDL3 is the current development version.)

SDL_UpdateNVTexture

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

Header File

Defined in SDL_render.h, but apps should only #include "SDL.h"!

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

Return 0 on success, or -1 if the texture is not valid.

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 2.0.16.

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CategoryAPI, CategoryAPIFunction

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