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Commit cd6e4e69 authored by Andrew Walbran's avatar Andrew Walbran
Browse files

Add methods to get properties of Buffer. 

Bug: 307535208
Test: atest libnativewindow_rs-internal_test
Change-Id: Id07eb850ad1db7fbb25ef2a563d1f212ea7145f7
parent 30262985

libs/nativewindow/rust/src/surface/buffer.rs

+23 −1
Original line number Diff line number Diff line
@@ -13,7 +13,7 @@ 
// 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`.
@@ -43,4 +43,26 @@ impl<'a> Buffer<'a> { 
    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))

    }

}