Loader interface v2 differs from v1 in that the first ICD entrypoint
called by the loader is vk_icdNegotiateLoaderICDInterfaceVersion(), not
vk_icdGetInstanceProcAddr(). The ICD must statically expose this
entrypoint.
---
src/intel/vulkan/anv_device.c | 43 +++++++++++++++++++++++++++++++++++++++++++
1 file changed, 43 insertions(+)
diff --git a/src/intel/vulkan/anv_device.c b/src/intel/vulkan/anv_device.c
index 219c611408..89e427f342 100644
--- a/src/intel/vulkan/anv_device.c
+++ b/src/intel/vulkan/anv_device.c
@@ -2034,3 +2034,46 @@ void anv_DestroyFramebuffer(
vk_free2(&device->alloc, pAllocator, fb);
}
+
+/* Suppress warnings because vk_icd.h does not declare this function.
+ * Clang supports this pragma too.
+ */
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wmissing-prototypes"
+PUBLIC VKAPI_ATTR VkResult VKAPI_CALL
+vk_icdNegotiateLoaderICDInterfaceVersion(uint32_t* pSupportedVersion)
+{
+ /* For the full details on loader interface versioning, see
+ *
<https://github.com/KhronosGroup/Vulkan-LoaderAndValidationLayers/blob/master/loader/LoaderAndLayerInterface.md>.
+ * What follows is a condensed summary, to help you navigate the large and
+ * confusing official doc.
+ *
+ * - Loader interface v0 is incompatible with later versions. We don't
+ * support it.
+ *
+ * - In loader interface v1:
+ * - The first ICD entrypoint called by the loader is
+ * vk_icdGetInstanceProcAddr(). The ICD must statically expose this
+ * entrypoint.
+ * - The ICD must statically expose no other Vulkan symbol unless it
is
+ * linked with -Bsymbolic.
+ * - Each dispatchable Vulkan handle created by the ICD must be
+ * a pointer to a struct whose first member is VK_LOADER_DATA. The
+ * ICD must initialize VK_LOADER_DATA.loadMagic to ICD_LOADER_MAGIC.
+ * - The loader implements vkCreate{PLATFORM}SurfaceKHR() and
+ * vkDestroySurfaceKHR(). The ICD must be capable of working with
+ * such loader-managed surfaces.
+ *
+ * - Loader interface v2 differs from v1 in:
+ * - The first ICD entrypoint called by the loader is
+ * vk_icdNegotiateLoaderICDInterfaceVersion(). The ICD must
+ * statically expose this entrypoint.
+ *
+ * - Loader interface v3 differs from v2 in:
+ * - The ICD must implement vkCreate{PLATFORM}Surface() and
+ * vkDestroySurface() because the loader no longer does so.
+ */
+ *pSupportedVersion = 2;
+ return VK_SUCCESS;
+}
+#pragma GCC diagnostic pop
--
2.11.0
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