#pragma section-numbers off
#pragma camelcase off

= SDL_CreateTextureFromSurface =
Use this function to create a texture from an existing surface.

<<TableOfContents()>>

== Syntax ==
{{{#!highlight cpp
SDL_Texture* SDL_CreateTextureFromSurface(SDL_Renderer* renderer,
                                          SDL_Surface*  surface)
}}}

== Function Parameters ==
||'''renderer'''||the rendering context||
||'''surface'''||the [[SDL_Surface]] structure containing pixel data used to fill the texture||

== Return Value ==
Returns the created texture or NULL on failure; call [[SDL_GetError]]() for more information.

== Code Examples ==
{{{#!highlight cpp
Uint32 rmask, gmask, bmask, amask;

/* SDL interprets each pixel as a 32-bit number, so our masks must depend
   on the endianness (byte order) of the machine */
#if SDL_BYTEORDER == SDL_BIG_ENDIAN
    rmask = 0xff000000;
    gmask = 0x00ff0000;
    bmask = 0x0000ff00;
    amask = 0x000000ff;
#else
    rmask = 0x000000ff;
    gmask = 0x0000ff00;
    bmask = 0x00ff0000;
    amask = 0xff000000;
#endif

SDL_Surface *surface = SDL_CreateRGBSurface(0, 640, 480, 32, rmask, gmask, bmask, amask);

if (surface == NULL) {
    fprintf(stderr, "CreateRGBSurface failed: %s\n", SDL_GetError());
    exit(1);
}


SDL_Texture *texture = SDL_CreateTextureFromSurface(renderer, surface);

if (texture == NULL) {
    fprintf(stderr, "CreateTextureFromSurface failed: %s\n", SDL_GetError());
    exit(1);
}

SDL_FreeSurface(surface);
surface = NULL;

}}}

== Remarks ==
The surface is not modified or freed by this function.

The [[SDL_TextureAccess]] hint for the created texture is SDL_TEXTUREACCESS_STATIC.

The pixel format of the created texture may be different from the pixel format of the surface. Use [[SDL_QueryTexture]]() to query the pixel format of the texture.

== Related Functions ==
 .[[SDL_CreateTexture]]
 .[[SDL_DestroyTexture]]
 .[[SDL_QueryTexture]]

----
[[CategoryAPI]], [[CategoryRender]]