Mesa (master): radv: Implement VK_KHR_external_fence_fd.

[Bas Nieuwenhuizen]

Module: Mesa
Branch: master
Commit: 72d599e8ef2c78a854ff34b31485f74a2e3c52b3
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=72d599e8ef2c78a854ff34b31485f74a2e3c52b3

Author: Bas Nieuwenhuizen <bas at basnieuwenhuizen.nl>
Date:   Tue Nov 28 00:21:12 2017 +0100

radv: Implement VK_KHR_external_fence_fd.

---

 src/amd/vulkan/radv_device.c      | 47 +++++++++++++++++++++++++++++++++++++++
 src/amd/vulkan/radv_extensions.py |  1 +
 2 files changed, 48 insertions(+)

diff --git a/src/amd/vulkan/radv_device.c b/src/amd/vulkan/radv_device.c
index fc9fb59f99..94562fda87 100644
--- a/src/amd/vulkan/radv_device.c
+++ b/src/amd/vulkan/radv_device.c
@@ -3746,3 +3746,50 @@ void radv_GetPhysicalDeviceExternalSemaphorePropertiesKHR(
 		pExternalSemaphoreProperties->externalSemaphoreFeatures = 0;
 	}
 }
+
+VkResult radv_ImportFenceFdKHR(VkDevice _device,
+				   const VkImportFenceFdInfoKHR *pImportFenceFdInfo)
+{
+	RADV_FROM_HANDLE(radv_device, device, _device);
+	RADV_FROM_HANDLE(radv_fence, fence, pImportFenceFdInfo->fence);
+	uint32_t syncobj_handle = 0;
+	uint32_t *syncobj_dst = NULL;
+	assert(pImportFenceFdInfo->handleType == VK_EXTERNAL_FENCE_HANDLE_TYPE_OPAQUE_FD_BIT_KHR);
+
+	int ret = device->ws->import_syncobj(device->ws, pImportFenceFdInfo->fd, &syncobj_handle);
+	if (ret != 0)
+		return vk_error(VK_ERROR_INVALID_EXTERNAL_HANDLE_KHR);
+
+	if (pImportFenceFdInfo->flags & VK_FENCE_IMPORT_TEMPORARY_BIT_KHR) {
+		syncobj_dst = &fence->temp_syncobj;
+	} else {
+		syncobj_dst = &fence->syncobj;
+	}
+
+	if (*syncobj_dst)
+		device->ws->destroy_syncobj(device->ws, *syncobj_dst);
+
+	*syncobj_dst = syncobj_handle;
+	close(pImportFenceFdInfo->fd);
+	return VK_SUCCESS;
+}
+
+VkResult radv_GetFenceFdKHR(VkDevice _device,
+				const VkFenceGetFdInfoKHR *pGetFdInfo,
+				int *pFd)
+{
+	RADV_FROM_HANDLE(radv_device, device, _device);
+	RADV_FROM_HANDLE(radv_fence, fence, pGetFdInfo->fence);
+	int ret;
+	uint32_t syncobj_handle;
+
+	assert(pGetFdInfo->handleType == VK_EXTERNAL_FENCE_HANDLE_TYPE_OPAQUE_FD_BIT_KHR);
+	if (fence->temp_syncobj)
+		syncobj_handle = fence->temp_syncobj;
+	else
+		syncobj_handle = fence->syncobj;
+	ret = device->ws->export_syncobj(device->ws, syncobj_handle, pFd);
+	if (ret)
+		return vk_error(VK_ERROR_INVALID_EXTERNAL_HANDLE_KHR);
+	return VK_SUCCESS;
+}
diff --git a/src/amd/vulkan/radv_extensions.py b/src/amd/vulkan/radv_extensions.py
index 2c1c71ecdc..3188735ea7 100644
--- a/src/amd/vulkan/radv_extensions.py
+++ b/src/amd/vulkan/radv_extensions.py
@@ -53,6 +53,7 @@ EXTENSIONS = [
     Extension('VK_KHR_bind_memory2',                      1, True),
     Extension('VK_KHR_dedicated_allocation',              1, True),
     Extension('VK_KHR_descriptor_update_template',        1, True),
+    Extension('VK_KHR_external_fence_fd',                 1, 'device->rad_info.has_syncobj_wait'),
     Extension('VK_KHR_external_memory',                   1, True),
     Extension('VK_KHR_external_memory_capabilities',      1, True),
     Extension('VK_KHR_external_memory_fd',                1, True),