[Tizen] Add environment variable to manually set DPI

Change-Id: I43531781d952e4af03003956536867971b95c75b
Signed-off-by: Seungho, Baek <sbsh.baek@samsung.com>

diff --git a/dali/internal/system/common/environment-variables.h b/dali/internal/system/common/environment-variables.h
index 0947bdb..3d63c00 100644 (file)
--- a/dali/internal/system/common/environment-variables.h
+++ b/dali/internal/system/common/environment-variables.h
@@ -118,6 +118,10 @@ namespace Adaptor
 
 #define DALI_ENV_WEB_ENGINE_NAME "DALI_WEB_ENGINE_NAME"
 
+#define DALI_ENV_DPI_HORIZONTAL "DALI_DPI_HORIZONTAL"
+
+#define DALI_ENV_DPI_VERTICAL "DALI_DPI_VERTICAL"
+
 } // namespace Adaptor
 
 } // namespace Internal

diff --git a/dali/internal/window-system/common/window-render-surface.cpp b/dali/internal/window-system/common/window-render-surface.cpp
index a89b444..6dc0e68 100644 (file)
--- a/dali/internal/window-system/common/window-render-surface.cpp
+++ b/dali/internal/window-system/common/window-render-surface.cpp
@@ -179,7 +179,16 @@ PositionSize WindowRenderSurface::GetPositionSize() const
 
 void WindowRenderSurface::GetDpi( unsigned int& dpiHorizontal, unsigned int& dpiVertical )
 {
-  mWindowBase->GetDpi( dpiHorizontal, dpiVertical );
+  const char* environmentDpiX = std::getenv("DALI_ENV_DPI_HORIZONTAL");
+  dpiHorizontal = environmentDpiX ? std::atoi(environmentDpiX) : 0;
+
+  const char* environmentDpiY = std::getenv("DALI_ENV_DPI_VERTICAL");
+  dpiVertical = environmentDpiY ? std::atoi(environmentDpiY) : 0;
+
+  if( dpiHorizontal == 0 || dpiVertical == 0 )
+  {
+    mWindowBase->GetDpi( dpiHorizontal, dpiVertical );
+  }
 }
 
 int WindowRenderSurface::GetOrientation() const