vulkan/android: Add rp_attachment_has_external_format helper

Reviewed-by: Yiwei Zhang <zzyiwei@chromium.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/37177>

src/vulkan/runtime/vk_android.c

@@ -1061,4 +1061,14 @@ vk_android_get_ahb_buffer_properties(
    };
 }
 
+bool vk_android_rp_attachment_has_external_format(
+   const VkAttachmentDescription2 *desc)
+{
+   const VkExternalFormatANDROID *format_info =
+      vk_find_struct_const(desc->pNext,
+                           EXTERNAL_FORMAT_ANDROID);
+   return (desc->format == VK_FORMAT_UNDEFINED) &&
+          (format_info != NULL);
+}
+
 #endif /* ANDROID_API_LEVEL >= 26 */

src/vulkan/runtime/vk_android.h

@@ -110,6 +110,9 @@ void vk_android_get_ahb_buffer_properties(
    const VkPhysicalDeviceExternalBufferInfo *info,
    VkExternalBufferProperties *props);
 
+bool vk_android_rp_attachment_has_external_format(
+   const VkAttachmentDescription2 *desc);
+
 #else /* defined(VK_USE_PLATFORM_ANDROID_KHR) && ANDROID_API_LEVEL >= 26 */
 
 static inline uint64_t
@@ -169,6 +172,13 @@ vk_android_get_ahb_buffer_properties(
 {
 }
 
+static bool
+vk_android_rp_attachment_has_external_format(
+   const VkAttachmentDescription2 *desc)
+{
+   return false;
+}
+
 #endif /* ANDROID_API_LEVEL >= 26 */
 
 #ifdef __cplusplus