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| Original file line number | Diff line number | Diff line change |
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| #include "Profiler.h" | ||
| #include "ImGui/IconFont/IconsMaterialDesignIcons.h" | ||
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| #include <bgfx/bgfx.h> | ||
| #include <bx/string.h> | ||
| #include <bx/timer.h> | ||
| #include <bx/math.h> | ||
| #include <imgui/imgui.h> | ||
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| #include <cmath> | ||
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| namespace | ||
| { | ||
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| bool DrawBar(const char* id, float width, float maxWidth, float height, const ImVec4& color) | ||
| { | ||
| const ImGuiStyle& style = ImGui::GetStyle(); | ||
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| ImVec4 hoveredColor(color.x * 1.1f, color.y * 1.1f, color.z * 1.1f, color.w * 1.1f); | ||
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| ImGui::PushStyleColor(ImGuiCol_Button, color); | ||
| ImGui::PushStyleColor(ImGuiCol_ButtonHovered, hoveredColor); | ||
| ImGui::PushStyleColor(ImGuiCol_ButtonActive, color); | ||
| ImGui::PushStyleVar(ImGuiStyleVar_FrameRounding, 0.0f); | ||
| ImGui::PushStyleVar(ImGuiStyleVar_ItemSpacing, ImVec2(0.0f, style.ItemSpacing.y)); | ||
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| bool itemHovered = false; | ||
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| ImGui::PushID(id); | ||
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| ImGui::Button("##Visible", ImVec2(width, height)); | ||
| itemHovered = itemHovered || ImGui::IsItemHovered(); | ||
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| ImGui::SameLine(); | ||
| ImGui::InvisibleButton("##Invisible", ImVec2(std::max(1.0f, maxWidth - width), height)); | ||
| itemHovered = itemHovered || ImGui::IsItemHovered(); | ||
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| ImGui::PopID(); | ||
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| ImGui::PopStyleVar(2); | ||
| ImGui::PopStyleColor(3); | ||
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| return itemHovered; | ||
| } | ||
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| } | ||
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| namespace engine | ||
| { | ||
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| Profiler::~Profiler() | ||
| { | ||
| } | ||
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| void Profiler::Init() | ||
| { | ||
| } | ||
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| void Profiler::Update() | ||
| { | ||
| // top left, transparent background | ||
| //ImGui::SetNextWindowPos(padding, ImGuiCond_Always); | ||
| ImGui::SetNextWindowBgAlpha(0.5f); | ||
| constexpr auto flags = ImGuiWindowFlags_NoCollapse | ImGuiWindowFlags_NoScrollbar | ImGuiWindowFlags_NoScrollWithMouse; | ||
| ImGui::Begin(GetName(), &m_isEnable, flags); | ||
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| const float overlayWidth = 150.0f; | ||
| const ImVec2 padding = { 5.0f, 5.0f }; | ||
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| float deltaTime = ImGui::GetIO().DeltaTime; | ||
| static bool showFPS = true; | ||
| static bool showFrameTime = true; | ||
| static bool showViewStats = true; | ||
| static bool showGPUMemory = true; | ||
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| // title | ||
| ImGui::Text("Stats"); | ||
| ImGui::TextDisabled("right-click for options"); | ||
| ImGui::Separator(); | ||
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| // general data | ||
| const bgfx::Stats* stats = bgfx::getStats(); | ||
| const double toCpuMs = 1000.0 / double(stats->cpuTimerFreq); | ||
| const double toGpuMs = 1000.0 / double(stats->gpuTimerFreq); | ||
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| ImGui::Text("Backend: %s", bgfx::getRendererName(bgfx::getRendererType())); | ||
| ImGui::Text("Buffer size: %u x %u px", stats->width, stats->height); | ||
| ImGui::Text("Triangles: %u", stats->numPrims[bgfx::Topology::TriList]); | ||
| ImGui::Text("Draw calls: %u", stats->numDraw); | ||
| ImGui::Text("Compute calls: %u", stats->numCompute); | ||
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| // plots | ||
| static constexpr size_t GRAPH_HISTORY = 100; | ||
| static float fpsValues[GRAPH_HISTORY] = { 0 }; | ||
| static float frameTimeValues[GRAPH_HISTORY] = { 0 }; | ||
| static float gpuMemoryValues[GRAPH_HISTORY] = { 0 }; | ||
| static size_t offset = 0; | ||
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| if (showFPS) | ||
| { | ||
| ImGui::Separator(); | ||
| ImGui::Text("FPS"); | ||
| ImGui::PlotLines("", | ||
| fpsValues, | ||
| IM_ARRAYSIZE(fpsValues), | ||
| (int)offset + 1, | ||
| nullptr, | ||
| 0.0f, | ||
| 200.0f, | ||
| ImVec2(overlayWidth, 50)); | ||
| ImGui::Text("%.0f", fpsValues[offset]); | ||
| } | ||
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| if (showFrameTime) | ||
| { | ||
| ImGui::Separator(); | ||
| ImGui::Text("Frame time"); | ||
| ImGui::PlotLines("", | ||
| frameTimeValues, | ||
| IM_ARRAYSIZE(frameTimeValues), | ||
| (int)offset + 1, | ||
| nullptr, | ||
| 0.0f, | ||
| 30.0f, | ||
| ImVec2(overlayWidth, 50)); | ||
| ImGui::Text("CPU: %.2f ms", float(stats->cpuTimeEnd - stats->cpuTimeBegin) * toCpuMs); | ||
| ImGui::Text("GPU: %.2f ms", float(stats->gpuTimeEnd - stats->gpuTimeBegin) * toGpuMs); | ||
| ImGui::Text("Total: %.2f ms", frameTimeValues[offset]); | ||
| } | ||
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| if (showViewStats) | ||
| { | ||
| ImGui::Separator(); | ||
| ImGui::Text("View stats"); | ||
| if (stats->numViews > 0) | ||
| { | ||
| ImVec4 cpuColor(0.5f, 1.0f, 0.5f, 1.0f); | ||
| ImVec4 gpuColor(0.5f, 0.5f, 1.0f, 1.0f); | ||
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| const float itemHeight = ImGui::GetTextLineHeightWithSpacing(); | ||
| const float itemHeightWithSpacing = ImGui::GetFrameHeightWithSpacing(); | ||
| const float scale = 2.0f; | ||
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| if (ImGui::BeginListBox("##ViewStats", ImVec2(overlayWidth, stats->numViews * itemHeightWithSpacing))) | ||
| { | ||
| ImGuiListClipper clipper; | ||
| clipper.Begin(stats->numViews, itemHeight); | ||
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| while (clipper.Step()) | ||
| { | ||
| for (int32_t pos = clipper.DisplayStart; pos < clipper.DisplayEnd; ++pos) | ||
| { | ||
| const bgfx::ViewStats& viewStats = stats->viewStats[pos]; | ||
| float cpuElapsed = float((viewStats.cpuTimeEnd - viewStats.cpuTimeBegin) * toCpuMs); | ||
| float gpuElapsed = float((viewStats.gpuTimeEnd - viewStats.gpuTimeBegin) * toGpuMs); | ||
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| ImGui::Text("%d", viewStats.view); | ||
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| const float maxWidth = overlayWidth * 0.35f; | ||
| const float cpuWidth = bx::clamp(cpuElapsed * scale, 1.0f, maxWidth); | ||
| const float gpuWidth = bx::clamp(gpuElapsed * scale, 1.0f, maxWidth); | ||
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| ImGui::SameLine(overlayWidth * 0.3f); | ||
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| if (DrawBar("CPU", cpuWidth, maxWidth, itemHeight, cpuColor)) | ||
| { | ||
| ImGui::SetTooltip("%s -- CPU: %.2f ms", viewStats.name, cpuElapsed); | ||
| } | ||
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| ImGui::SameLine(); | ||
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| if (DrawBar("GPU", gpuWidth, maxWidth, itemHeight, gpuColor)) | ||
| { | ||
| ImGui::SetTooltip("%s -- GPU: %.2f ms", viewStats.name, gpuElapsed); | ||
| } | ||
| } | ||
| } | ||
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| clipper.End(); | ||
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| ImGui::EndListBox(); | ||
| } | ||
| } | ||
| else | ||
| { | ||
| ImGui::TextWrapped("Profiler disabled"); | ||
| } | ||
| } | ||
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| if (showGPUMemory) | ||
| { | ||
| int64_t used = stats->gpuMemoryUsed; | ||
| int64_t max = stats->gpuMemoryMax; | ||
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| ImGui::Separator(); | ||
| if (used > 0 && max > 0) | ||
| { | ||
| ImGui::Text("GPU memory"); | ||
| ImGui::PlotLines("", | ||
| gpuMemoryValues, | ||
| IM_ARRAYSIZE(gpuMemoryValues), | ||
| (int)offset + 1, | ||
| nullptr, | ||
| 0.0f, | ||
| float(max), | ||
| ImVec2(overlayWidth, 50)); | ||
| char strUsed[64]; | ||
| bx::prettify(strUsed, BX_COUNTOF(strUsed), stats->gpuMemoryUsed); | ||
| char strMax[64]; | ||
| bx::prettify(strMax, BX_COUNTOF(strMax), stats->gpuMemoryMax); | ||
| ImGui::Text("%s / %s", strUsed, strMax); | ||
| } | ||
| } | ||
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| // update after drawing so offset is the current value | ||
| static float currentTime = 0.0f; | ||
| static float oldTime = 0.0f; | ||
| constexpr float GRAPH_FREQUENCY = 0.1f; | ||
| currentTime += deltaTime; | ||
| if (currentTime - oldTime > GRAPH_FREQUENCY) | ||
| { | ||
| offset = (offset + 1) % GRAPH_HISTORY; | ||
| ImGuiIO& io = ImGui::GetIO(); | ||
| fpsValues[offset] = 1 / io.DeltaTime; | ||
| frameTimeValues[offset] = io.DeltaTime * 1000; | ||
| gpuMemoryValues[offset] = float(stats->gpuMemoryUsed) / 1024 / 1024; | ||
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| oldTime = currentTime; | ||
| } | ||
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| // right click menu | ||
| if (ImGui::BeginPopupContextWindow()) | ||
| { | ||
| ImGui::Checkbox("FPS", &showFPS); | ||
| ImGui::Checkbox("Frame time", &showFrameTime); | ||
| ImGui::Checkbox("View stats", &showViewStats); | ||
| ImGui::Checkbox("GPU memory", &showGPUMemory); | ||
| ImGui::EndPopup(); | ||
| } | ||
| ImGui::End(); | ||
| } | ||
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| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,16 @@ | ||
| #include "ImGui/ImGuiBaseLayer.h" | ||
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| namespace engine | ||
| { | ||
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| class Profiler : public engine::ImGuiBaseLayer | ||
| { | ||
| public: | ||
| using ImGuiBaseLayer::ImGuiBaseLayer; | ||
| virtual ~Profiler(); | ||
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| virtual void Init() override; | ||
| virtual void Update() override; | ||
| }; | ||
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| } |