Flutter Impeller
texture_source_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 
12 
14  return desc_;
15 }
16 
17 std::shared_ptr<YUVConversionVK> TextureSourceVK::GetYUVConversion() const {
18  return nullptr;
19 }
20 
21 vk::ImageLayout TextureSourceVK::GetLayout() const {
22  return layout_;
23 }
24 
26  vk::ImageLayout layout) const {
27  const auto old_layout = layout_;
28  layout_ = layout;
29  return old_layout;
30 }
31 
32 fml::Status TextureSourceVK::SetLayout(const BarrierVK& barrier) const {
33  const vk::ImageLayout old_layout =
35  vk::ImageMemoryBarrier image_barrier;
36  image_barrier.srcAccessMask = barrier.src_access;
37  image_barrier.dstAccessMask = barrier.dst_access;
38  image_barrier.oldLayout = old_layout;
39  image_barrier.newLayout = barrier.new_layout;
40  image_barrier.image = GetImage();
41  image_barrier.srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED;
42  image_barrier.dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED;
43  image_barrier.subresourceRange.aspectMask = ToImageAspectFlags(desc_.format);
44  image_barrier.subresourceRange.baseMipLevel = barrier.base_mip_level;
45  image_barrier.subresourceRange.levelCount =
46  desc_.mip_count - barrier.base_mip_level;
47  image_barrier.subresourceRange.baseArrayLayer = 0u;
48  image_barrier.subresourceRange.layerCount = ToArrayLayerCount(desc_.type);
49 
50  barrier.cmd_buffer.pipelineBarrier(barrier.src_stage, // src stage
51  barrier.dst_stage, // dst stage
52  {}, // dependency flags
53  nullptr, // memory barriers
54  nullptr, // buffer barriers
55  image_barrier // image barriers
56  );
57 
58  return {};
59 }
60 
62  SampleCount sample_count) {
63  frame_data_[static_cast<int>(sample_count) / 4] = data;
64 }
65 
67  SampleCount sample_count) const {
68  return frame_data_[static_cast<int>(sample_count) / 4];
69 }
70 
71 } // namespace impeller
TextureSourceVK(TextureDescriptor desc)
virtual std::shared_ptr< YUVConversionVK > GetYUVConversion() const
When sampling from textures whose formats are not known to Vulkan, a custom conversion is necessary t...
const TextureDescriptor & GetTextureDescriptor() const
Gets the texture descriptor for this image source.
const FramebufferAndRenderPass & GetCachedFrameData(SampleCount sample_count) const
virtual vk::Image GetImage() const =0
Get the image handle for this texture source.
void SetCachedFrameData(const FramebufferAndRenderPass &data, SampleCount sample_count)
vk::ImageLayout GetLayout() const
Get the last layout assigned to the TextureSourceVK.
vk::ImageLayout SetLayoutWithoutEncoding(vk::ImageLayout layout) const
Store the layout of the image.
const TextureDescriptor desc_
fml::Status SetLayout(const BarrierVK &barrier) const
Encodes the layout transition barrier to barrier.cmd_buffer for the image.
std::optional< PipelineDescriptor > desc_
constexpr uint32_t ToArrayLayerCount(TextureType type)
Definition: formats_vk.h:539
constexpr vk::ImageAspectFlags ToImageAspectFlags(PixelFormat format)
Definition: formats_vk.h:586
SampleCount
Definition: formats.h:295
Defines an operations and memory access barrier on a resource.
Definition: barrier_vk.h:27
vk::CommandBuffer cmd_buffer
Definition: barrier_vk.h:28
vk::AccessFlags src_access
Definition: barrier_vk.h:39
vk::PipelineStageFlags dst_stage
Definition: barrier_vk.h:44
vk::ImageLayout new_layout
Definition: barrier_vk.h:29
vk::PipelineStageFlags src_stage
Definition: barrier_vk.h:34
uint32_t base_mip_level
The base mip level to apply the barrier to in the subresource range.
Definition: barrier_vk.h:52
vk::AccessFlags dst_access
Definition: barrier_vk.h:49
A lightweight object that describes the attributes of a texture that can then used an allocator to cr...
std::shared_ptr< const fml::Mapping > data
Definition: texture_gles.cc:68