Wrap more methods to get and set properties of ANativeWindow.
Bug: 307535208
Test: atest libnativewindow_rs-internal_test
Change-Id: I18e4158321f71bd95bb6d3f4868bae4d8a7d417e
diff --git a/libs/nativewindow/rust/src/surface.rs b/libs/nativewindow/rust/src/surface.rs
index 25fea80..9eddfcd 100644
--- a/libs/nativewindow/rust/src/surface.rs
+++ b/libs/nativewindow/rust/src/surface.rs
@@ -20,10 +20,14 @@
unstable_api::{status_result, AsNative},
StatusCode,
};
+use bitflags::bitflags;
use nativewindow_bindgen::{
- AHardwareBuffer_Format, ANativeWindow, ANativeWindow_acquire, ANativeWindow_getFormat,
- ANativeWindow_getHeight, ANativeWindow_getWidth, ANativeWindow_readFromParcel,
- ANativeWindow_release, ANativeWindow_writeToParcel,
+ ADataSpace, AHardwareBuffer_Format, ANativeWindow, ANativeWindow_acquire,
+ ANativeWindow_getBuffersDataSpace, ANativeWindow_getBuffersDefaultDataSpace,
+ ANativeWindow_getFormat, ANativeWindow_getHeight, ANativeWindow_getWidth,
+ ANativeWindow_readFromParcel, ANativeWindow_release, ANativeWindow_setBuffersDataSpace,
+ ANativeWindow_setBuffersGeometry, ANativeWindow_setBuffersTransform,
+ ANativeWindow_writeToParcel,
};
use std::error::Error;
use std::fmt::{self, Debug, Display, Formatter};
@@ -60,6 +64,95 @@
let format = unsafe { ANativeWindow_getFormat(self.0.as_ptr()) };
format.try_into().map_err(|_| ErrorCode(format))
}
+
+ /// Changes the format and size of the window buffers.
+ ///
+ /// The width and height control the number of pixels in the buffers, not the dimensions of the
+ /// window on screen. If these are different than the window's physical size, then its buffer
+ /// will be scaled to match that size when compositing it to the screen. The width and height
+ /// must be either both zero or both non-zero. If both are 0 then the window's base value will
+ /// come back in force.
+ pub fn set_buffers_geometry(
+ &mut self,
+ width: i32,
+ height: i32,
+ format: AHardwareBuffer_Format::Type,
+ ) -> Result<(), ErrorCode> {
+ // SAFETY: The ANativeWindow pointer we pass is guaranteed to be non-null and valid because
+ // it must have been allocated by `ANativeWindow_allocate` or `ANativeWindow_readFromParcel`
+ // and we have not yet released it.
+ let status = unsafe {
+ ANativeWindow_setBuffersGeometry(
+ self.0.as_ptr(),
+ width,
+ height,
+ format.try_into().expect("Invalid format"),
+ )
+ };
+
+ if status == 0 {
+ Ok(())
+ } else {
+ Err(ErrorCode(status))
+ }
+ }
+
+ /// Sets a transfom that will be applied to future buffers posted to the window.
+ pub fn set_buffers_transform(&mut self, transform: Transform) -> Result<(), ErrorCode> {
+ // SAFETY: The ANativeWindow pointer we pass is guaranteed to be non-null and valid because
+ // it must have been allocated by `ANativeWindow_allocate` or `ANativeWindow_readFromParcel`
+ // and we have not yet released it.
+ let status =
+ unsafe { ANativeWindow_setBuffersTransform(self.0.as_ptr(), transform.bits() as i32) };
+
+ if status == 0 {
+ Ok(())
+ } else {
+ Err(ErrorCode(status))
+ }
+ }
+
+ /// Sets the data space that will be applied to future buffers posted to the window.
+ pub fn set_buffers_data_space(&mut self, data_space: ADataSpace) -> Result<(), ErrorCode> {
+ // SAFETY: The ANativeWindow pointer we pass is guaranteed to be non-null and valid because
+ // it must have been allocated by `ANativeWindow_allocate` or `ANativeWindow_readFromParcel`
+ // and we have not yet released it.
+ let status = unsafe { ANativeWindow_setBuffersDataSpace(self.0.as_ptr(), data_space.0) };
+
+ if status == 0 {
+ Ok(())
+ } else {
+ Err(ErrorCode(status))
+ }
+ }
+
+ /// Gets the data space of the buffers in the window.
+ pub fn get_buffers_data_space(&mut self) -> Result<ADataSpace, ErrorCode> {
+ // SAFETY: The ANativeWindow pointer we pass is guaranteed to be non-null and valid because
+ // it must have been allocated by `ANativeWindow_allocate` or `ANativeWindow_readFromParcel`
+ // and we have not yet released it.
+ let data_space = unsafe { ANativeWindow_getBuffersDataSpace(self.0.as_ptr()) };
+
+ if data_space < 0 {
+ Err(ErrorCode(data_space))
+ } else {
+ Ok(ADataSpace(data_space))
+ }
+ }
+
+ /// Gets the default data space of the buffers in the window as set by the consumer.
+ pub fn get_buffers_default_data_space(&mut self) -> Result<ADataSpace, ErrorCode> {
+ // SAFETY: The ANativeWindow pointer we pass is guaranteed to be non-null and valid because
+ // it must have been allocated by `ANativeWindow_allocate` or `ANativeWindow_readFromParcel`
+ // and we have not yet released it.
+ let data_space = unsafe { ANativeWindow_getBuffersDefaultDataSpace(self.0.as_ptr()) };
+
+ if data_space < 0 {
+ Err(ErrorCode(data_space))
+ } else {
+ Ok(ADataSpace(data_space))
+ }
+ }
}
impl Drop for Surface {
@@ -141,3 +234,19 @@
write!(f, "Error {}", self.0)
}
}
+
+bitflags! {
+ /// Transforms that can be applied to buffers as they are displayed to a window.
+ #[derive(Copy, Clone, Debug, Eq, PartialEq)]
+ pub struct Transform: u32 {
+ const MIRROR_HORIZONTAL = 0x01;
+ const MIRROR_VERTICAL = 0x02;
+ const ROTATE_90 = 0x04;
+ }
+}
+
+impl Transform {
+ pub const IDENTITY: Self = Self::empty();
+ pub const ROTATE_180: Self = Self::MIRROR_HORIZONTAL.union(Self::MIRROR_VERTICAL);
+ pub const ROTATE_270: Self = Self::ROTATE_180.union(Self::ROTATE_90);
+}