Merge "Add methods to get properties of Buffer." into main

// limitations under the License.

use super::{ErrorCode, Surface};

use nativewindow_bindgen::ANativeWindow_Buffer;

use nativewindow_bindgen::{AHardwareBuffer_Format, ANativeWindow_Buffer};

use std::ptr::null_mut;

/// An empty `ANativeWindow_Buffer`.

    pub fn unlock_and_post(self) -> Result<(), ErrorCode> {

        self.surface.unlock_and_post()

    }

    /// The number of pixels that are shown horizontally.

    pub fn width(&self) -> i32 {

        self.buffer.width

    }

    /// The number of pixels that are shown vertically.

    pub fn height(&self) -> i32 {

        self.buffer.height

    }

    /// The number of pixels that a line in the buffer takes in memory.

    ///

    /// This may be greater than the width.

    pub fn stride(&self) -> i32 {

        self.buffer.stride

    }

    /// The pixel format of the buffer.

    pub fn format(&self) -> Result<AHardwareBuffer_Format::Type, ErrorCode> {

        self.buffer.format.try_into().map_err(|_| ErrorCode(self.buffer.format))

    }

}