1 // Copyright 2013 The Flutter Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #include "flutter/vulkan/vulkan_native_surface_android.h"
6
7 #include <android/native_window.h>
8
9 #include "third_party/skia/include/gpu/vk/GrVkBackendContext.h"
10
11 namespace vulkan {
12
VulkanNativeSurfaceAndroid(ANativeWindow * native_window)13 VulkanNativeSurfaceAndroid::VulkanNativeSurfaceAndroid(
14 ANativeWindow* native_window)
15 : native_window_(native_window) {
16 if (native_window_ == nullptr) {
17 return;
18 }
19 ANativeWindow_acquire(native_window_);
20 }
21
~VulkanNativeSurfaceAndroid()22 VulkanNativeSurfaceAndroid::~VulkanNativeSurfaceAndroid() {
23 if (native_window_ == nullptr) {
24 return;
25 }
26 ANativeWindow_release(native_window_);
27 }
28
GetExtensionName() const29 const char* VulkanNativeSurfaceAndroid::GetExtensionName() const {
30 return VK_KHR_ANDROID_SURFACE_EXTENSION_NAME;
31 }
32
GetSkiaExtensionName() const33 uint32_t VulkanNativeSurfaceAndroid::GetSkiaExtensionName() const {
34 return kKHR_android_surface_GrVkExtensionFlag;
35 }
36
CreateSurfaceHandle(VulkanProcTable & vk,const VulkanHandle<VkInstance> & instance) const37 VkSurfaceKHR VulkanNativeSurfaceAndroid::CreateSurfaceHandle(
38 VulkanProcTable& vk,
39 const VulkanHandle<VkInstance>& instance) const {
40 if (!vk.IsValid() || !instance) {
41 return VK_NULL_HANDLE;
42 }
43
44 const VkAndroidSurfaceCreateInfoKHR create_info = {
45 .sType = VK_STRUCTURE_TYPE_ANDROID_SURFACE_CREATE_INFO_KHR,
46 .pNext = nullptr,
47 .flags = 0,
48 .window = native_window_,
49 };
50
51 VkSurfaceKHR surface = VK_NULL_HANDLE;
52
53 if (VK_CALL_LOG_ERROR(vk.CreateAndroidSurfaceKHR(
54 instance, &create_info, nullptr, &surface)) != VK_SUCCESS) {
55 return VK_NULL_HANDLE;
56 }
57
58 return surface;
59 }
60
IsValid() const61 bool VulkanNativeSurfaceAndroid::IsValid() const {
62 return native_window_ != nullptr;
63 }
64
GetSize() const65 SkISize VulkanNativeSurfaceAndroid::GetSize() const {
66 return native_window_ == nullptr
67 ? SkISize::Make(0, 0)
68 : SkISize::Make(ANativeWindow_getWidth(native_window_),
69 ANativeWindow_getHeight(native_window_));
70 }
71
72 } // namespace vulkan
73