[render-test] Implement gfx probe for tracking gpu resources

1 files changed, 7 insertions, 1 deletions

diff --git a/platform/default/include/mbgl/gfx/headless_frontend.hpp b/platform/default/include/mbgl/gfx/headless_frontend.hpp
index 353452123d..8a98b4112d 100644
--- a/platform/default/include/mbgl/gfx/headless_frontend.hpp
+++ b/platform/default/include/mbgl/gfx/headless_frontend.hpp
@@ -1,6 +1,7 @@
 #pragma once
 
 #include <mbgl/gfx/headless_backend.hpp>
+#include <mbgl/gfx/rendering_stats.hpp>
 #include <mbgl/map/camera.hpp>
 #include <mbgl/renderer/renderer_frontend.hpp>
 #include <mbgl/util/async_task.hpp>
@@ -17,6 +18,11 @@ class TransformState;
 
 class HeadlessFrontend : public RendererFrontend {
 public:
+    struct RenderResult {
+        PremultipliedImage image;
+        gfx::RenderingStats stats;
+    };
+
     HeadlessFrontend(float pixelRatio_,
                      gfx::HeadlessBackend::SwapBehaviour swapBehviour = gfx::HeadlessBackend::SwapBehaviour::NoFlush,
                      gfx::ContextMode mode = gfx::ContextMode::Unique,
@@ -48,7 +54,7 @@ public:
     LatLng latLngForPixel(const ScreenCoordinate&);
 
     PremultipliedImage readStillImage();
-    PremultipliedImage render(Map&);
+    RenderResult render(Map&);
     void renderOnce(Map&);
 
     optional<TransformState> getTransformState() const;