mirrors/dolphin
0
0
Fork 0
mirror of https://github.com/dolphin-emu/dolphin.git synced 2025-08-10 01:59:02 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

Vulkan: Enable subgroupShuffle.

Browse source 
It is used as workaround for the missing subgroupBroadcastDynamicId flag on SPIR-V < 1.5.
This commit is contained in:
degasus 2023-03-24 21:42:43 +01:00
commit 196c684ac1
3 changed files with 14 additions and 3 deletions
Download patch file Download diff file Expand all files Collapse all files

8
Source/Core/VideoBackends/Vulkan/VulkanContext.cpp
View file

@ -981,9 +981,11 @@ void VulkanContext::PopulateShaderSubgroupSupport()
// We require basic ops (for gl_SubgroupInvocationID), ballot (for subgroupBallot,
// subgroupBallotFindLSB), and arithmetic (for subgroupMin/subgroupMax).
constexpr VkSubgroupFeatureFlags required_operations = VK_SUBGROUP_FEATURE_BASIC_BIT |
VK_SUBGROUP_FEATURE_ARITHMETIC_BIT |
VK_SUBGROUP_FEATURE_BALLOT_BIT;
// Shuffle is enabled as a workaround until SPIR-V >= 1.5 is enabled with broadcast(uniform)
// support.
constexpr VkSubgroupFeatureFlags required_operations =
VK_SUBGROUP_FEATURE_BASIC_BIT | VK_SUBGROUP_FEATURE_ARITHMETIC_BIT |
VK_SUBGROUP_FEATURE_BALLOT_BIT | VK_SUBGROUP_FEATURE_SHUFFLE_BIT;
m_supports_shader_subgroup_operations =
(subgroup_properties.supportedOperations & required_operations) == required_operations &&
subgroup_properties.supportedStages & VK_SHADER_STAGE_FRAGMENT_BIT &&