From d38defae25196b543255efb9236b3e0e89a9a014 Mon Sep 17 00:00:00 2001
From: Tobias Frisch <tfrisch@uni-koblenz.de>
Date: Sat, 18 Jun 2022 19:05:51 +0200
Subject: [PATCH] Correct SPD fallback mechanic for safe downsampling
Signed-off-by: Tobias Frisch <tfrisch@uni-koblenz.de>
---
.../vkcv/algorithm/SinglePassDownsampler.cpp | 28 ++++++++++++++++---
modules/scene/src/vkcv/scene/Scene.cpp | 18 ++----------
2 files changed, 26 insertions(+), 20 deletions(-)
diff --git a/modules/algorithm/src/vkcv/algorithm/SinglePassDownsampler.cpp b/modules/algorithm/src/vkcv/algorithm/SinglePassDownsampler.cpp
index ea6331b0..d022fbed 100644
--- a/modules/algorithm/src/vkcv/algorithm/SinglePassDownsampler.cpp
+++ b/modules/algorithm/src/vkcv/algorithm/SinglePassDownsampler.cpp
@@ -146,7 +146,7 @@ namespace vkcv::algorithm {
vkcv::Downsampler(core),
m_pipeline(),
- m_descriptorSetLayout(m_core.createDescriptorSetLayout(getDescriptorBindings(sampler))),
+ m_descriptorSetLayout(),
m_descriptorSets(),
m_globalCounter(m_core.createBuffer<uint32_t>(
@@ -155,6 +155,21 @@ namespace vkcv::algorithm {
)),
m_sampler(sampler) {
+ const auto& featureManager = m_core.getContext().getFeatureManager();
+
+ const bool partialBound = featureManager.checkFeatures<vk::PhysicalDeviceDescriptorIndexingFeatures>(
+ vk::StructureType::ePhysicalDeviceDescriptorIndexingFeatures,
+ [](const vk::PhysicalDeviceDescriptorIndexingFeatures& features) {
+ return features.descriptorBindingPartiallyBound;
+ }
+ );
+
+ if (!partialBound) {
+ return;
+ }
+
+ m_descriptorSetLayout = m_core.createDescriptorSetLayout(getDescriptorBindings(sampler));
+
vkcv::shader::GLSLCompiler compiler (vkcv::shader::GLSLCompileTarget::SUBGROUP_OP);
vk::PhysicalDeviceSubgroupProperties subgroupProperties;
@@ -169,8 +184,6 @@ namespace vkcv::algorithm {
compiler.setDefine("SPD_NO_WAVE_OPERATIONS", "1");
}
- const auto& featureManager = m_core.getContext().getFeatureManager();
-
const bool float16Support = (
featureManager.checkFeatures<vk::PhysicalDeviceFloat16Int8FeaturesKHR>(
vk::StructureType::ePhysicalDeviceShaderFloat16Int8FeaturesKHR,
@@ -229,13 +242,20 @@ namespace vkcv::algorithm {
void SinglePassDownsampler::recordDownsampling(const CommandStreamHandle &cmdStream,
const ImageHandle &image) {
+ Downsampler& fallback = m_core.getDownsampler();
+
+ if (m_pipeline) {
+ fallback.recordDownsampling(cmdStream, image);
+ return;
+ }
+
const uint32_t mipLevels = m_core.getImageMipLevels(image);
const uint32_t depth = m_core.getImageDepth(image);
m_core.prepareImageForSampling(cmdStream, image);
if ((mipLevels < 4) || (depth > 1) || (!m_core.isImageSupportingStorage(image))) {
- m_core.getDownsampler().recordDownsampling(cmdStream, image);
+ fallback.recordDownsampling(cmdStream, image);
return;
}
diff --git a/modules/scene/src/vkcv/scene/Scene.cpp b/modules/scene/src/vkcv/scene/Scene.cpp
index cb819370..9a8ded0f 100644
--- a/modules/scene/src/vkcv/scene/Scene.cpp
+++ b/modules/scene/src/vkcv/scene/Scene.cpp
@@ -284,26 +284,12 @@ namespace vkcv::scene {
);
const vkcv::FeatureManager& featureManager = core.getContext().getFeatureManager();
- const bool partialBound = featureManager.checkFeatures<vk::PhysicalDeviceDescriptorIndexingFeatures>(
- vk::StructureType::ePhysicalDeviceDescriptorIndexingFeatures,
- [](const vk::PhysicalDeviceDescriptorIndexingFeatures& features) {
- return features.descriptorBindingPartiallyBound;
- }
- );
- vkcv::Downsampler& downsampler = core.getDownsampler();
vkcv::algorithm::SinglePassDownsampler spdDownsampler (core, sampler);
-
auto mipStream = core.createCommandStream(vkcv::QueueType::Graphics);
- if (partialBound) {
- for (auto& material : scene.m_materials) {
- material.m_data.recordMipChainGeneration(mipStream, spdDownsampler);
- }
- } else {
- for (auto& material : scene.m_materials) {
- material.m_data.recordMipChainGeneration(mipStream, downsampler);
- }
+ for (auto& material : scene.m_materials) {
+ material.m_data.recordMipChainGeneration(mipStream, spdDownsampler);
}
core.submitCommandStream(mipStream, false);
--
GitLab