From 7545be645cd855b6a6410e3145ff23306095c869 Mon Sep 17 00:00:00 2001
From: Dmitry Marakasov <amdmi3@amdmi3.ru>
Date: Fri, 29 Jan 2016 01:37:19 +0300
Subject: [PATCH] Add Renderer::SetDrawBlendMode() default argument and tests

---
 SDL2pp/Renderer.hh      | 2 +-
 tests/live_rendering.cc | 7 +++++++
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/SDL2pp/Renderer.hh b/SDL2pp/Renderer.hh
index f91e473..665d0fc 100644
--- a/SDL2pp/Renderer.hh
+++ b/SDL2pp/Renderer.hh
@@ -340,7 +340,7 @@ public:
 	/// \see http://wiki.libsdl.org/SDL_SetRenderDrawBlendMode
 	///
 	////////////////////////////////////////////////////////////
-	Renderer& SetDrawBlendMode(SDL_BlendMode blendMode);
+	Renderer& SetDrawBlendMode(SDL_BlendMode blendMode = SDL_BLENDMODE_NONE);
 
 	////////////////////////////////////////////////////////////
 	/// \brief Draw a point on the current rendering target
diff --git a/tests/live_rendering.cc b/tests/live_rendering.cc
index 6fe1d2e..e4c80ea 100644
--- a/tests/live_rendering.cc
+++ b/tests/live_rendering.cc
@@ -239,10 +239,17 @@ BEGIN_TEST(int, char*[])
 		renderer.SetDrawColor(0, 0, 0);
 		renderer.Clear();
 
+		EXPECT_EQUAL(renderer.GetDrawBlendMode(), SDL_BLENDMODE_NONE);
+
 		renderer.SetDrawBlendMode(SDL_BLENDMODE_BLEND);
+		EXPECT_EQUAL(renderer.GetDrawBlendMode(), SDL_BLENDMODE_BLEND);
+
 		renderer.SetDrawColor(255, 255, 255, 127);
 		renderer.FillRect(10, 10, 19, 19);
 
+		renderer.SetDrawBlendMode();
+		EXPECT_EQUAL(renderer.GetDrawBlendMode(), SDL_BLENDMODE_NONE);
+
 		pixels.Retrieve(renderer);
 
 		EXPECT_TRUE(pixels.Test3x3(10, 10, 0x033, 127, 127, 127));