Add FinalAppWindowScreenshotFramebufferScale

pthom · Oct 16, 2024 · f388190 · f388190
1 parent f3fdec8
commit f388190
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Showing 3 changed files with 14 additions and 0 deletions.
diff --git 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
@@ -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
@@ -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),