SDL_CreateSurfaceFrom3
Allocate a new surface with a specific pixel format and existing pixel data.
Usage
#include "SDL3/SDL.h"
SDL_Surface * SDL_CreateSurfaceFrom(int width, int height, SDL_PixelFormat format, void *pixels, int pitch);
Header file
Defined in SDL3/SDL_surface.h
Overview
No copy is made of the pixel data. Pixel data is not managed automatically; you must free the surface before you free the pixel data.
Pitch is the offset in bytes from one row of pixels to the next, e.g. width*4 for SDL_PIXELFORMAT_RGBA8888 .
You may pass NULL for pixels and 0 for pitch to create a surface that you will fill in with valid values later.
Function parameters
width
|
the width of the surface. |
|---|---|
height
|
the height of the surface. |
format
|
the |
pixels
|
a pointer to existing pixel data. |
pitch
|
the number of bytes between each row, including padding. |
Return value
( SDL_Surface
*) Returns the new SDL_Surface
structure that is created or NULL on failure; call
SDL_GetError () for more information.
Thread safety
It is safe to call this function from any thread.