extensions/android: Add VK_ANDROID_external_memory_android_hardware_b…

…uffer (#769)

Changelog.md

@@ -14,6 +14,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Update Vulkan-Headers to 1.3.254 (#760)
 - Added `VK_NV_memory_decompression` device extension (#761)
 - Added `VK_GOOGLE_display_timing` device extension (#765)
+- Added `VK_ANDROID_external_memory_android_hardware_buffer` device extension (#769)
 
 ### Changed
 

ash/src/extensions/android/external_memory_android_hardware_buffer.rs

@@ -0,0 +1,56 @@
+use crate::prelude::*;
+use crate::vk;
+use crate::{Device, Instance};
+use std::ffi::CStr;
+use std::mem;
+
+/// <https://www.khronos.org/registry/vulkan/specs/1.3-extensions/man/html/VK_ANDROID_external_memory_android_hardware_buffer.html>
+#[derive(Clone)]
+pub struct ExternalMemoryAndroidHardwareBuffer {
+    handle: vk::Device,
+    fp: vk::AndroidExternalMemoryAndroidHardwareBufferFn,
+}
+
+impl ExternalMemoryAndroidHardwareBuffer {
+    pub fn new(instance: &Instance, device: &Device) -> Self {
+        let handle = device.handle();
+        let fp = vk::AndroidExternalMemoryAndroidHardwareBufferFn::load(|name| unsafe {
+            mem::transmute(instance.get_device_proc_addr(handle, name.as_ptr()))
+        });
+        Self { handle, fp }
+    }
+
+    /// <https://www.khronos.org/registry/vulkan/specs/1.3-extensions/man/html/vkGetAndroidHardwareBufferPropertiesANDROID.html>
+    #[inline]
+    pub unsafe fn get_android_hardware_buffer_properties(
+        &self,
+        buffer: *const vk::AHardwareBuffer,
+        properties: &mut vk::AndroidHardwareBufferPropertiesANDROID,
+    ) -> VkResult<()> {
+        (self.fp.get_android_hardware_buffer_properties_android)(self.handle, buffer, properties)
+            .result()
+    }
+
+    /// <https://www.khronos.org/registry/vulkan/specs/1.3-extensions/man/html/vkGetMemoryAndroidHardwareBufferANDROID.html>
+    #[inline]
+    pub unsafe fn get_memory_android_hardware_buffer(
+        &self,
+        info: &vk::MemoryGetAndroidHardwareBufferInfoANDROID,
+    ) -> VkResult<*mut vk::AHardwareBuffer> {
+        let mut buffer = std::ptr::null_mut();
+        (self.fp.get_memory_android_hardware_buffer_android)(self.handle, info, &mut buffer)
+            .result_with_success(buffer)
+    }
+
+    pub const NAME: &'static CStr = vk::AndroidExternalMemoryAndroidHardwareBufferFn::NAME;
+
+    #[inline]
+    pub fn fp(&self) -> &vk::AndroidExternalMemoryAndroidHardwareBufferFn {
+        &self.fp
+    }
+
+    #[inline]
+    pub fn device(&self) -> vk::Device {
+        self.handle
+    }
+}

ash/src/extensions/android/mod.rs

@@ -0,0 +1,3 @@
+pub use self::external_memory_android_hardware_buffer::ExternalMemoryAndroidHardwareBuffer;
+
+mod external_memory_android_hardware_buffer;

ash/src/extensions/mod.rs

@@ -1,3 +1,4 @@
+pub mod android;
 pub mod ext;
 pub mod google;
 pub mod khr;