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[dxvk] Don't keep pipeline locked when building optimized variant

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Only lock when creating base variant, otherwise we'll have stutter.
This commit is contained in:
Philip Rebohle 2022-07-06 12:42:47 +02:00
parent cc1575e8b7
commit 7f9a04fd59
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GPG Key ID: C8CC613427A31C99
2 changed files with 27 additions and 10 deletions
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29
src/dxvk/dxvk_graphics.cpp
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@ -566,22 +566,39 @@ namespace dxvk {
void DxvkGraphicsPipeline::compilePipeline(
const DxvkGraphicsPipelineStateInfo& state) {
if (m_device->config().enableGraphicsPipelineLibrary == Tristate::True)
return;
// Try to find an existing instance that contains a base pipeline
DxvkGraphicsPipelineInstance* instance = this->findInstance(state);
if (!instance) {
// Exit early if the state vector is invalid
if (!this->validatePipelineState(state, false))
return;
// Keep the object locked while compiling a pipeline since compiling
// similar pipelines concurrently is fragile on some drivers
// Prevent other threads from adding new instances and check again
std::lock_guard<dxvk::mutex> lock(m_mutex);
instance = this->findInstance(state);
if (!this->findInstance(state))
this->createInstance(state);
if (!instance)
instance = this->createInstance(state);
}
// Exit if another thread is already compiling
// an optimized version of this pipeline
if (instance->isCompiling.load()
|| instance->isCompiling.exchange(VK_TRUE, std::memory_order_acquire))
return;
VkPipeline pipeline = this->createOptimizedPipeline(state);
instance->fastHandle.store(pipeline, std::memory_order_release);
}
DxvkGraphicsPipelineInstance* DxvkGraphicsPipeline::createInstance(
const DxvkGraphicsPipelineStateInfo& state) {
VkPipeline pipeline = this->createPipeline(state);
VkPipeline pipeline = this->createOptimizedPipeline(state);
m_stats->numGraphicsPipelines += 1;
return &(*m_pipelines.emplace(state, VK_NULL_HANDLE, pipeline));
@ -599,7 +616,7 @@ namespace dxvk {
}
VkPipeline DxvkGraphicsPipeline::createPipeline(
VkPipeline DxvkGraphicsPipeline::createOptimizedPipeline(
const DxvkGraphicsPipelineStateInfo& state) const {
auto vk = m_device->vkd();

2
src/dxvk/dxvk_graphics.h
View File

@ -388,7 +388,7 @@ namespace dxvk {
DxvkGraphicsPipelineInstance* findInstance(
const DxvkGraphicsPipelineStateInfo& state);
VkPipeline createPipeline(
VkPipeline createOptimizedPipeline(
const DxvkGraphicsPipelineStateInfo& state) const;
void destroyPipeline(