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SDL Wiki

SDL_UpdateNVTexture

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

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.


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