Flutter Impeller
khr_swapchain_image_vk.cc
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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 
6 
7 namespace impeller {
8 
10  const vk::Device& device,
11  vk::Image image)
12  : TextureSourceVK(desc), image_(image) {
13  vk::ImageViewCreateInfo view_info;
14  view_info.image = image_;
15  view_info.viewType = vk::ImageViewType::e2D;
16  view_info.format = ToVKImageFormat(desc.format);
17  view_info.subresourceRange.aspectMask = vk::ImageAspectFlagBits::eColor;
18  view_info.subresourceRange.baseMipLevel = 0u;
19  view_info.subresourceRange.baseArrayLayer = 0u;
20  view_info.subresourceRange.levelCount = desc.mip_count;
21  view_info.subresourceRange.layerCount = ToArrayLayerCount(desc.type);
22 
23  auto [view_result, view] = device.createImageViewUnique(view_info);
24  if (view_result != vk::Result::eSuccess) {
25  return;
26  }
27 
28  image_view_ = std::move(view);
29  is_valid_ = true;
30 }
31 
33 
35  return is_valid_;
36 }
37 
38 // |TextureSourceVK|
39 vk::Image KHRSwapchainImageVK::GetImage() const {
40  return image_;
41 }
42 
43 // |TextureSourceVK|
44 vk::ImageView KHRSwapchainImageVK::GetImageView() const {
45  return image_view_.get();
46 }
47 
48 // |TextureSourceVK|
50  return image_view_.get();
51 }
52 
53 // |TextureSourceVK|
55  return true;
56 }
57 
58 } // namespace impeller
KHRSwapchainImageVK(TextureDescriptor desc, const vk::Device &device, vk::Image image)
vk::Image GetImage() const override
Get the image handle for this texture source.
vk::ImageView GetImageView() const override
Retrieve the image view used for sampling/blitting/compute with this texture source.
bool IsSwapchainImage() const override
Determines if swapchain image. That is, an image used as the root render target.
vk::ImageView GetRenderTargetView() const override
Retrieve the image view used for render target attachments with this texture source.
Abstract base class that represents a vkImage and an vkImageView.
constexpr uint32_t ToArrayLayerCount(TextureType type)
Definition: formats_vk.h:539
constexpr vk::Format ToVKImageFormat(PixelFormat format)
Definition: formats_vk.h:146
A lightweight object that describes the attributes of a texture that can then used an allocator to cr...