---
name: "SDL_GetPixelFormatForMasks"
section: "3"
platform: "linux"
package: "libsdl3-doc"
version: "3.2.10+ds-1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/SDL_GetPixelFormatForMasks"
---

# SDL\_GetPixelFormatForMasks(3)

Convert a bpp value and RGBA masks to an enumerated pixel format.

## NAME

SDL\_GetPixelFormatForMasks - Convert a bpp value and RGBA masks to an enumerated pixel format.

## HEADER FILE

Defined in SDL3/SDL\_pixels.h

## SYNOPSIS

```
#include "SDL3/SDL.h"
```

**SDL\_PixelFormat SDL\_GetPixelFormatForMasks(int bpp, Uint32 Rmask, Uint32 Gmask, Uint32 Bmask, Uint32 Amask);**

## DESCRIPTION

This will return  **SDL\_PIXELFORMAT\_UNKNOWN** if the conversion wasn't possible.

## FUNCTION PARAMETERS

- *bpp*

  a bits per pixel value; usually 15, 16, or 32.

- *Rmask*

  the red mask for the format.

- *Gmask*

  the green mask for the format.

- *Bmask*

  the blue mask for the format.

- *Amask*

  the alpha mask for the format.

## RETURN VALUE

( **SDL\_PixelFormat** ) Returns the

**SDL\_PixelFormat**\
  value corresponding to the format masks, or  **SDL\_PIXELFORMAT\_UNKNOWN**\
  if there isn't a match.

## THREAD SAFETY

It is safe to call this function from any thread.

## AVAILABILITY

This function is available since SDL 3.2.0.

## SEE ALSO

**•**(3), [**SDL\_GetMasksForPixelFormat**(3)](/SDL_GetMasksForPixelFormat/3.md)