rooty/dxvk
1
0
Fork 0
mirror of https://github.com/doitsujin/dxvk.git synced 2025-02-21 04:54:15 +01:00
Code Issues Projects Releases Wiki Activity

[d3d11] Prefer GENERAL layout for read-only textures

Browse Source
This commit is contained in:
Philip Rebohle 2024-10-12 14:06:24 +02:00 committed by Philip Rebohle
parent 6301b9d23d
commit b2598906ca
1 changed files with 18 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

35
src/d3d11/d3d11_texture.cpp
View File

@ -730,33 +730,34 @@ namespace dxvk {
VkImageLayout D3D11CommonTexture::OptimizeLayout(VkImageUsageFlags Usage) {
const VkImageUsageFlags usageFlags = Usage;
// Filter out unnecessary flags. Transfer operations
// are handled by the backend in a transparent manner.
Usage &= ~(VK_IMAGE_USAGE_TRANSFER_DST_BIT
| VK_IMAGE_USAGE_TRANSFER_SRC_BIT);
// Storage images require GENERAL.
if (Usage & VK_IMAGE_USAGE_STORAGE_BIT)
return VK_IMAGE_LAYOUT_GENERAL;
// Also use GENERAL if the image cannot be rendered to. This
// should not harm any hardware in practice and may avoid some
// redundant layout transitions for regular textures.
if (Usage == VK_IMAGE_USAGE_SAMPLED_BIT)
return VK_IMAGE_LAYOUT_GENERAL;
// If the image is used only as an attachment, we never
// have to transform the image back to a different layout
// have to transform the image back to a different layout.
if (Usage == VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT)
return VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL;
if (Usage == VK_IMAGE_USAGE_DEPTH_STENCIL_ATTACHMENT_BIT)
return VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL;
Usage &= ~(VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT
| VK_IMAGE_USAGE_DEPTH_STENCIL_ATTACHMENT_BIT);
// If the image is used for reading but not as a storage
// image, we can optimize the image for texture access
if (Usage == VK_IMAGE_USAGE_SAMPLED_BIT) {
return usageFlags & VK_IMAGE_USAGE_DEPTH_STENCIL_ATTACHMENT_BIT
? VK_IMAGE_LAYOUT_DEPTH_STENCIL_READ_ONLY_OPTIMAL
: VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
}
// Otherwise, we have to stick with the default layout
return VK_IMAGE_LAYOUT_GENERAL;
// Otherwise, pick a layout that can be used for reading.
return usageFlags & VK_IMAGE_USAGE_DEPTH_STENCIL_ATTACHMENT_BIT
? VK_IMAGE_LAYOUT_DEPTH_STENCIL_READ_ONLY_OPTIMAL
: VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
}