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[Perf] (DirectVulkan): keep the wire draw's render pass open across draws to the same attachments, closing it only for work that cannot sit inside one

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swung0x48
2026-10-04 06:18:35 -04:00
parent e5ee31b022
commit bb31f374a3
15 changed files with 142 additions and 9 deletions
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MobileGL/MG_Backend/DirectVulkan/Renderer/VkRenderPassManager.cpp
+17
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@@ -7,6 +7,8 @@
// End of Source File Header
#include "VkRenderPassManager.h"
#include "RenderPassGuard.h"
#include <atomic>
#include "MG_Impl/GLImpl/Framebuffer/GL_Framebuffer.h"
#include "MG_State/GLState/TextureState/TextureObject2D.h"
@@ -1666,6 +1668,7 @@ namespace MobileGL::MG_Backend::DirectVulkan {
s_clearManager.Get()->PopPendingClear(pending.key);
}
}
s_activeRenderPass.Get().commandBuffer = commandBuffer;
s_activeRenderPass.Get().hash = renderPassEntry.hash;
s_activeRenderPass.Get().compatibilityHash = renderPassEntry.compatibilityHash;
s_activeRenderPass.Get().trackedAttachmentLayouts = renderPassEntry.trackedAttachmentLayouts;
@@ -1676,6 +1679,7 @@ namespace MobileGL::MG_Backend::DirectVulkan {
}
Bool VkRenderPassManager::EndRenderPass(VkCommandBuffer commandBuffer) {
BumpWireImageWriteEpoch();
auto* activeRenderPass = GetActiveRenderPass();
vkCmdEndRenderPass(commandBuffer);
// The fast-path memo reuses the ACTIVE render pass; once the pass ends it must not carry
@@ -1734,4 +1738,17 @@ namespace MobileGL::MG_Backend::DirectVulkan {
ActiveRenderPassInfo* VkRenderPassManager::GetActiveRenderPass() {
return s_hasActiveRenderPass.Get() ? &s_activeRenderPass.Get() : nullptr;
}
namespace {
std::atomic<Uint64> g_wireImageWriteEpoch{1};
}
Uint64 WireImageWriteEpoch() { return g_wireImageWriteEpoch.load(std::memory_order_relaxed); }
void BumpWireImageWriteEpoch() { g_wireImageWriteEpoch.fetch_add(1, std::memory_order_relaxed); }
void EndActiveRenderPassOn(VkCommandBuffer commandBuffer) {
BumpWireImageWriteEpoch();
const auto* active = VkRenderPassManager::GetActiveRenderPass();
if (active != nullptr && active->commandBuffer == commandBuffer && commandBuffer != VK_NULL_HANDLE)
VkRenderPassManager::EndRenderPass(commandBuffer);
}
} // namespace MobileGL::MG_Backend::DirectVulkan