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apu: Add frame timing debug

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This commit is contained in:
Matt Borgerson
2026-02-15 22:06:06 -07:00
committed by mborgerson
parent e85b0dc48a
commit a11d0c83a4
5 changed files with 172 additions and 8 deletions
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ui/xui/debug.cc
+67
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@@ -16,6 +16,7 @@
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
//
#include <inttypes.h>
#include "debug.hh"
#include "common.hh"
#include "misc.hh"
@@ -228,6 +229,72 @@ void DebugApuWindow::Draw()
if (color) ImGui::PopStyleColor();
ImGui::Text("Frames: %04d", dbg->frames_processed);
if (ImGui::TreeNode("Throttle")) {
ImGui::Text("Deviation: %" PRId64 "/%" PRId64 "/%" PRId64 " us",
dbg->throttle.deviation.min_us,
dbg->throttle.deviation.avg_us,
dbg->throttle.deviation.max_us);
ImGui::Text("Latency: %.1f/%.1f/%.1f ms",
dbg->throttle.latency.min_ms,
dbg->throttle.latency.avg_ms,
dbg->throttle.latency.max_ms);
float high = dbg->throttle.latency.high_ms;
if (high > 0) {
float scale = fmax(high, dbg->throttle.latency.max_ms);
float h = ImGui::GetFrameHeight() * 0.25f;
ImGui::Text("Queue/Pacing:");
ImVec2 pos = ImGui::GetCursorScreenPos();
float w = ImGui::GetContentRegionAvail().x;
float low_x = pos.x + w * (dbg->throttle.latency.low_ms / scale);
float high_x = pos.x + w * (high / scale);
float min_x = pos.x + w * (dbg->throttle.latency.min_ms / scale);
float avg_x = pos.x + w * (dbg->throttle.latency.avg_ms / scale);
float max_x = pos.x + w * (dbg->throttle.latency.max_ms / scale);
const ImU32 col_bg = IM_COL32(40, 40, 40, 255);
const ImU32 col_band = IM_COL32(60, 120, 60, 255);
const ImU32 col_avg = IM_COL32(100, 220, 100, 255);
const ImU32 col_low = IM_COL32(255, 255, 0, 180);
const ImU32 col_high = IM_COL32(255, 80, 80, 180);
ImDrawList *dl = ImGui::GetWindowDrawList();
dl->AddRectFilled(pos, ImVec2(pos.x + w, pos.y + h), col_bg);
dl->AddRectFilled(ImVec2(min_x, pos.y), ImVec2(max_x, pos.y + h),
col_band);
dl->AddLine(ImVec2(low_x, pos.y), ImVec2(low_x, pos.y + h),
col_low, 1.0f);
dl->AddLine(ImVec2(avg_x, pos.y), ImVec2(avg_x, pos.y + h),
col_avg, 2.0f);
dl->AddLine(ImVec2(high_x, pos.y), ImVec2(high_x, pos.y + h),
col_high, 1.0f);
ImGui::Dummy(ImVec2(w, h));
pos.y += h * 1.25;
const ImU32 col_speedup = col_low;
const ImU32 col_ok = col_band;
const ImU32 col_backoff = col_high;
float sp = dbg->throttle.pacing.speedup;
float ok = dbg->throttle.pacing.ok;
float bo = dbg->throttle.pacing.backoff;
float sp_x = pos.x + w * sp;
float ok_x = sp_x + w * ok;
dl->AddRectFilled(pos, ImVec2(pos.x + w, pos.y + h), col_bg);
if (sp > 0) {
dl->AddRectFilled(pos, ImVec2(sp_x, pos.y + h), col_speedup);
}
if (ok > 0) {
dl->AddRectFilled(ImVec2(sp_x, pos.y), ImVec2(ok_x, pos.y + h),
col_ok);
}
if (bo > 0) {
dl->AddRectFilled(ImVec2(ok_x, pos.y), ImVec2(pos.x + w, pos.y + h),
col_backoff);
}
ImGui::Dummy(ImVec2(w, h));
}
ImGui::TreePop();
}
ImGui::Text("VP: %4d us", dbg->vp.total_worker_time_us);
if (ImGui::TreeNode("VP Workers")) {
ImGui::Text(" W: # us");