[flutter_runner] use external image create info
DX-939 #progress
MA-394 #progress
This informs the vulkan driver that we're creating an image
that will be backed by external memory. The driver driver can
decide to use different memory requirements based on the if
memory for the image can be exported or not.
No change in behavior. Existing tests (modular_tests,
scenic_tests, etc.) are sufficient and regressions will be
prevented by running these tests on aemu.
Test: fx shell run fuchsia-pkg://fuchsia.com/basemgr#meta/basemgr.cmx --base_shell=fuchsia-pkg://fuchsia.com/spinning_cube#meta/spinning_cube.cmx
Change-Id: I489318c2e31f752f76c80a81245e203861d44d94
diff --git a/runtime/flutter_runner/vulkan_surface.cc b/runtime/flutter_runner/vulkan_surface.cc
index 3bd065f..7e77067 100644
--- a/runtime/flutter_runner/vulkan_surface.cc
+++ b/runtime/flutter_runner/vulkan_surface.cc
@@ -35,9 +35,14 @@
// src/ui/lib/escher/util/image_utils.cc) or else the different vulkan
// devices may interpret the bytes differently.
// TODO(SCN-1369): Use API to coordinate this with scenic.
+ out_vulkan_image->vk_external_image_create_info = {
+ .sType = VK_STRUCTURE_TYPE_EXTERNAL_MEMORY_IMAGE_CREATE_INFO,
+ .pNext = nullptr,
+ .handleTypes = VK_EXTERNAL_MEMORY_HANDLE_TYPE_TEMP_ZIRCON_VMO_BIT_FUCHSIA,
+ };
out_vulkan_image->vk_image_create_info = {
.sType = VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO,
- .pNext = nullptr,
+ .pNext = &out_vulkan_image->vk_external_image_create_info,
.flags = VK_IMAGE_CREATE_MUTABLE_FORMAT_BIT,
.imageType = VK_IMAGE_TYPE_2D,
.format = VK_FORMAT_B8G8R8A8_UNORM,
diff --git a/runtime/flutter_runner/vulkan_surface.h b/runtime/flutter_runner/vulkan_surface.h
index ff866b5..b2d75ba 100644
--- a/runtime/flutter_runner/vulkan_surface.h
+++ b/runtime/flutter_runner/vulkan_surface.h
@@ -29,6 +29,7 @@
VulkanImage(VulkanImage&&) = default;
VulkanImage& operator=(VulkanImage&&) = default;
+ VkExternalMemoryImageCreateInfo vk_external_image_create_info;
VkImageCreateInfo vk_image_create_info;
VkMemoryRequirements vk_memory_requirements;
vulkan::VulkanHandle<VkImage> vk_image;
