diff options
Diffstat (limited to 'src/vulkan')
| -rw-r--r-- | src/vulkan/overlay-layer/overlay.cpp | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/src/vulkan/overlay-layer/overlay.cpp b/src/vulkan/overlay-layer/overlay.cpp index 04ee2833730..cdde7ea1e17 100644 --- a/src/vulkan/overlay-layer/overlay.cpp +++ b/src/vulkan/overlay-layer/overlay.cpp @@ -201,6 +201,10 @@ struct swapchain_data { uint64_t n_frames; uint64_t last_present_time; + unsigned n_frames_since_update; + uint64_t last_fps_update; + double fps; + double frame_times[200]; double acquire_times[200]; @@ -401,12 +405,24 @@ static void snapshot_swapchain_frame(struct swapchain_data *data) ((double)now - (double)data->last_present_time) / 1000.0; } + if (data->last_fps_update) { + double elapsed = (double)(now - data->last_fps_update); + if (elapsed >= 500000.0) { + data->fps = ((uint64_t)data->n_frames_since_update * 1000000 / elapsed); + data->n_frames_since_update = 0; + data->last_fps_update = now; + } + } else { + data->last_fps_update = now; + } + struct device_data *device_data = data->device; data->stats[data->n_frames % ARRAY_SIZE(data->frame_times)] = device_data->stats; memset(&device_data->stats, 0, sizeof(device_data->stats)); data->last_present_time = now; data->n_frames++; + data->n_frames_since_update++; } static float get_frame_timing(void *_data, int _idx) @@ -491,6 +507,7 @@ static void compute_swapchain_display(struct swapchain_data *data) format_name = format_name ? (format_name + strlen("VK_FORMAT_")) : "unknown"; ImGui::Text("Swapchain format: %s", format_name); ImGui::Text("Frames: %" PRIu64, data->n_frames); + ImGui::Text("FPS: %.2f" , data->fps); { double min_time = FLT_MAX, max_time = 0.0f; |