From f388190787a742c7301d5d4e23975e5756c8b562 Mon Sep 17 00:00:00 2001
From: Pascal Thomet <pthomet@gmail.com>
Date: Wed, 16 Oct 2024 11:34:22 +0200
Subject: [PATCH] Add FinalAppWindowScreenshotFramebufferScale

---
 src/hello_imgui/hello_imgui_screenshot.h               |  1 +
 src/hello_imgui/impl/hello_imgui_screenshot.cpp        | 10 ++++++++++
 .../internal/backend_impls/abstract_runner.cpp         |  3 +++
 3 files changed, 14 insertions(+)

diff --git a/src/hello_imgui/hello_imgui_screenshot.h b/src/hello_imgui/hello_imgui_screenshot.h
index d7450605..0ce4fd28 100644
--- a/src/hello_imgui/hello_imgui_screenshot.h
+++ b/src/hello_imgui/hello_imgui_screenshot.h
@@ -25,4 +25,5 @@ namespace HelloImGui
     ImageBuffer AppWindowScreenshotRgbBuffer();
 
     ImageBuffer FinalAppWindowScreenshotRgbBuffer();
+    float FinalAppWindowScreenshotFramebufferScale();
 }
diff --git a/src/hello_imgui/impl/hello_imgui_screenshot.cpp b/src/hello_imgui/impl/hello_imgui_screenshot.cpp
index 48cffde0..93d2fe98 100644
--- a/src/hello_imgui/impl/hello_imgui_screenshot.cpp
+++ b/src/hello_imgui/impl/hello_imgui_screenshot.cpp
@@ -13,15 +13,25 @@ namespace HelloImGui
     }
 
     ImageBuffer gFinalAppWindowScreenshotRgbBuffer;
+    float gFinalAppWindowScreenshotFramebufferScale = 1.0f;
 
     void setFinalAppWindowScreenshotRgbBuffer(const ImageBuffer& b)
     {
         gFinalAppWindowScreenshotRgbBuffer = b;
     }
+    void setFinalAppWindowScreenshotFramebufferScale(float scale)
+    {
+        gFinalAppWindowScreenshotFramebufferScale = scale;
+    }
 
     ImageBuffer FinalAppWindowScreenshotRgbBuffer()
     {
         return gFinalAppWindowScreenshotRgbBuffer;
     }
 
+    float FinalAppWindowScreenshotFramebufferScale()
+    {
+        return gFinalAppWindowScreenshotFramebufferScale;
+    }
+
 }
diff --git a/src/hello_imgui/internal/backend_impls/abstract_runner.cpp b/src/hello_imgui/internal/backend_impls/abstract_runner.cpp
index 335769d7..b08085dc 100644
--- a/src/hello_imgui/internal/backend_impls/abstract_runner.cpp
+++ b/src/hello_imgui/internal/backend_impls/abstract_runner.cpp
@@ -78,6 +78,7 @@ namespace HelloImGui
 {
 // Encapsulated inside hello_imgui_screenshot.cpp
 void setFinalAppWindowScreenshotRgbBuffer(const ImageBuffer& b);
+void setFinalAppWindowScreenshotFramebufferScale(float scale);
 
 // Encapsulated inside hello_imgui_font.cpp
 bool _reloadAllDpiResponsiveFonts();
@@ -1436,6 +1437,8 @@ void AbstractRunner::TearDown(bool gotException)
         {
             ImageBuffer b = ScreenshotRgb();
             setFinalAppWindowScreenshotRgbBuffer(b);
+            float scale = (ImGui::GetIO().DisplayFramebufferScale.x + ImGui::GetIO().DisplayFramebufferScale.y) / 2.f;
+            setFinalAppWindowScreenshotFramebufferScale(scale);
         }
         if (params.appWindowParams.restorePreviousGeometry)
             HelloImGuiIniSettings::SaveLastRunWindowBounds(IniSettingsLocation(params),