StillHammer
4932017244
- Create DebugOverlay class using bgfx debug text API - Display FPS (color-coded: green >55, yellow >30, red <30) - Show frame time, sprite count, draw calls - Show GPU/CPU timing and texture stats from bgfx - Add "debugOverlay" config option to enable at startup - Smooth FPS display over 250ms intervals 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
74 lines
2.4 KiB
C++
74 lines
2.4 KiB
C++
#include "DebugOverlay.h"
|
|
#include <bgfx/bgfx.h>
|
|
|
|
namespace grove {
|
|
|
|
void DebugOverlay::update(float deltaTime, uint32_t spriteCount, uint32_t drawCalls) {
|
|
m_deltaTime = deltaTime;
|
|
m_frameTimeMs = deltaTime * 1000.0f;
|
|
m_fps = deltaTime > 0.0f ? 1.0f / deltaTime : 0.0f;
|
|
m_spriteCount = spriteCount;
|
|
m_drawCalls = drawCalls;
|
|
|
|
// Smooth FPS over time
|
|
m_fpsAccum += deltaTime;
|
|
m_fpsFrameCount++;
|
|
|
|
if (m_fpsAccum >= FPS_UPDATE_INTERVAL) {
|
|
m_smoothedFps = static_cast<float>(m_fpsFrameCount) / m_fpsAccum;
|
|
m_fpsAccum = 0.0f;
|
|
m_fpsFrameCount = 0;
|
|
}
|
|
}
|
|
|
|
void DebugOverlay::render(uint16_t screenWidth, uint16_t screenHeight) {
|
|
if (!m_enabled) {
|
|
return;
|
|
}
|
|
|
|
// Enable debug text rendering
|
|
bgfx::setDebug(BGFX_DEBUG_TEXT);
|
|
|
|
// Clear debug text buffer
|
|
bgfx::dbgTextClear();
|
|
|
|
// Calculate text columns based on screen width (8 pixels per char typically)
|
|
// uint16_t cols = screenWidth / 8;
|
|
(void)screenWidth;
|
|
(void)screenHeight;
|
|
|
|
// Header
|
|
bgfx::dbgTextPrintf(1, 1, 0x0f, "GroveEngine Debug Overlay");
|
|
bgfx::dbgTextPrintf(1, 2, 0x07, "========================");
|
|
|
|
// FPS and frame time
|
|
uint8_t fpsColor = 0x0a; // Green
|
|
if (m_smoothedFps < 30.0f) {
|
|
fpsColor = 0x0c; // Red
|
|
} else if (m_smoothedFps < 55.0f) {
|
|
fpsColor = 0x0e; // Yellow
|
|
}
|
|
bgfx::dbgTextPrintf(1, 4, fpsColor, "FPS: %.1f", m_smoothedFps);
|
|
bgfx::dbgTextPrintf(1, 5, 0x07, "Frame: %.2f ms", m_frameTimeMs);
|
|
|
|
// Rendering stats
|
|
bgfx::dbgTextPrintf(1, 7, 0x07, "Sprites: %u", m_spriteCount);
|
|
bgfx::dbgTextPrintf(1, 8, 0x07, "Draw calls: %u", m_drawCalls);
|
|
|
|
// bgfx stats
|
|
const bgfx::Stats* stats = bgfx::getStats();
|
|
if (stats) {
|
|
bgfx::dbgTextPrintf(1, 10, 0x07, "GPU time: %.2f ms",
|
|
double(stats->gpuTimeEnd - stats->gpuTimeBegin) * 1000.0 / stats->gpuTimerFreq);
|
|
bgfx::dbgTextPrintf(1, 11, 0x07, "CPU submit: %.2f ms",
|
|
double(stats->cpuTimeEnd - stats->cpuTimeBegin) * 1000.0 / stats->cpuTimerFreq);
|
|
bgfx::dbgTextPrintf(1, 12, 0x07, "Primitives: %u", stats->numPrims[bgfx::Topology::TriList]);
|
|
bgfx::dbgTextPrintf(1, 13, 0x07, "Textures: %u / %u", stats->numTextures, stats->textureMemoryUsed / 1024);
|
|
}
|
|
|
|
// Instructions
|
|
bgfx::dbgTextPrintf(1, 15, 0x08, "Press F3 to toggle overlay");
|
|
}
|
|
|
|
} // namespace grove
|