atdunbg
3bfe28b027
RenderGraph 新增 IGpuProfiler 可选注入（pass 边界 Begin/End 钩子 + 帧尾 Collect，zone 覆盖 barrier+lambda+postBarriers），RG 本体不感知 任何 profiler 实现。Renderer 侧 TracyGpuProfiler 实现：TracyVkContext （校准用临时 cb，池必须带 RESET_COMMAND_BUFFER_BIT——tracy 校准流程 对同一 cb 连续 begin 三次）+ TracyVkZoneTransient（pass 名是运行时 字符串）。TRACY_ENABLE 关闭全链路退化为空。 用法：Tracy GUI（0.14.1 配对）连接后按 pass 名看 GPU 段时间线， 与 ImGui 数表互补；LOD 调优的测量前置。
100 lines
3.2 KiB
C++
100 lines
3.2 KiB
C++
//
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// Created by atdunbg on 2026/9/24.
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//
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#include <Engine/Renderer/TracyGpuProfiler.h>
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#include <Engine/Vulkan/Device.h>
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#include <Engine/Core/Log.h>
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#include <tracy/TracyVulkan.hpp>
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#include <cstring>
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namespace Engine {
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// pass scope：构造 = BEGIN 时间戳，析构 = END（覆盖 pass lambda 录制期）
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class TracyGpuProfiler::ScopeImpl final : public RG::RenderGraph::IGpuProfiler::IScope {
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public:
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#ifdef TRACY_ENABLE
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ScopeImpl(TracyVkCtx ctx, const char* name, vk::CommandBuffer cmd)
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: m_Zone(ctx, static_cast<uint32_t>(__LINE__), __FILE__,
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sizeof(__FILE__) - 1, __FUNCTION__, sizeof(__FUNCTION__) - 1,
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name, std::strlen(name),
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static_cast<VkCommandBuffer>(cmd), true) {}
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tracy::VkCtxScope m_Zone;
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#else
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ScopeImpl(TracyVkCtx, const char*, vk::CommandBuffer) {}
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#endif
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};
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TracyGpuProfiler::TracyGpuProfiler(Device& device)
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{
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#ifdef TRACY_ENABLE
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// 校准用临时 command buffer：tracy 校准流程对同一 cb 连续
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// begin 三次（无中间 reset）——池必须带 RESET_COMMAND_BUFFER_BIT，
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// 否则 VUID-vkBeginCommandBuffer-commandBuffer-00050
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vk::CommandPoolCreateInfo poolInfo;
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poolInfo.setQueueFamilyIndex(device.GetGraphicsFamily())
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.setFlags(vk::CommandPoolCreateFlagBits::eTransient |
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vk::CommandPoolCreateFlagBits::eResetCommandBuffer);
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vk::CommandPool pool =
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device.GetDevice().createCommandPool(poolInfo);
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vk::CommandBuffer cb = device.GetDevice().allocateCommandBuffers(
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vk::CommandBufferAllocateInfo{}
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.setCommandPool(pool)
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.setLevel(vk::CommandBufferLevel::ePrimary)
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.setCommandBufferCount(1))[0];
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m_Ctx = TracyVkContext(
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static_cast<VkPhysicalDevice>(device.GetPhysicalDevice()),
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static_cast<VkDevice>(device.GetDevice()),
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static_cast<VkQueue>(device.GetGraphicsQueue()),
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static_cast<VkCommandBuffer>(cb));
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device.GetDevice().freeCommandBuffers(pool, cb);
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device.GetDevice().destroyCommandPool(pool);
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if (m_Ctx) {
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ENGINE_INFO("Tracy GPU profiler attached (pass zones active)");
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} else {
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ENGINE_WARN("Tracy GPU profiler: context creation failed, disabled");
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}
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#endif
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}
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TracyGpuProfiler::~TracyGpuProfiler()
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{
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#ifdef TRACY_ENABLE
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if (m_Ctx) {
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TracyVkDestroy(static_cast<TracyVkCtx>(m_Ctx));
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}
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#endif
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}
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Scope<TracyGpuProfiler::IScope> TracyGpuProfiler::BeginPass(
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const char* name, vk::CommandBuffer cmd)
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{
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#ifdef TRACY_ENABLE
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if (!m_Ctx) return nullptr;
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return Scope<IScope>(new ScopeImpl(
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static_cast<TracyVkCtx>(m_Ctx), name, cmd));
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#else
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(void)name;
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(void)cmd;
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return nullptr;
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#endif
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}
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void TracyGpuProfiler::EndFrame(vk::CommandBuffer cmd)
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{
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#ifdef TRACY_ENABLE
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if (m_Ctx) {
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TracyVkCollect(static_cast<TracyVkCtx>(m_Ctx),
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static_cast<VkCommandBuffer>(cmd));
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}
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#else
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(void)cmd;
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#endif
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}
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} // namespace Engine
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