Update the given texture rectangle with new pixel data.
Defined in <SDL3/SDL_render.h>
bool SDL_UpdateTexture(SDL_Texture *texture, const SDL_Rect *rect, const void *pixels, int pitch);
SDL_Texture * | texture | the texture to update. |
const SDL_Rect * | rect | an SDL_Rect structure representing the area to update, or NULL to update the entire texture. |
const void * | pixels | the raw pixel data in the format of the texture. |
int | pitch | the number of bytes in a row of pixel data, including padding between lines. |
(bool) Returns true on success or false on failure; call SDL_GetError() for more information.
The pixel data must be in the pixel format of the texture, which can be queried using the SDL_PROP_TEXTURE_FORMAT_NUMBER property.
This is a fairly slow function, intended for use with static textures that do not change often.
If the texture is intended to be updated often, it is preferred to create the texture as streaming and use the locking functions referenced below. While this function will work with streaming textures, for optimization reasons you may not get the pixels back if you lock the texture afterward.
You may only call this function from the main thread.
This function is available since SDL 3.0.0.