From fe2ee9ecf5709d49279265f0e5d3b2d0a5688265 Mon Sep 17 00:00:00 2001
From: Johannes Schickel
Date: Fri, 11 Dec 2015 19:23:41 +0100
Subject: OPENGL: Refactor screen refresh handling.

Subclasses of OpenGLGraphicsManager are now supposed to supply a refreshScreen
function which handles actual screen updating (for example, buffer swapping).
---
 backends/graphics/opengl/opengl-graphics.h | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'backends/graphics/opengl/opengl-graphics.h')

diff --git a/backends/graphics/opengl/opengl-graphics.h b/backends/graphics/opengl/opengl-graphics.h
index cec970e0cc..3634e145ce 100644
--- a/backends/graphics/opengl/opengl-graphics.h
+++ b/backends/graphics/opengl/opengl-graphics.h
@@ -262,6 +262,11 @@ protected:
 	 */
 	virtual bool loadVideoMode(uint requestedWidth, uint requestedHeight, const Graphics::PixelFormat &format) = 0;
 
+	/**
+	 * Refresh the screen contents.
+	 */
+	virtual void refreshScreen() = 0;
+
 	/**
 	 * Save a screenshot of the full display as BMP to the given file. This
 	 * uses Common::DumpFile for writing the screenshot.
-- 
cgit v1.2.3


From f65a8b26898db3bd870010fc3a0b0b71e50e16b7 Mon Sep 17 00:00:00 2001
From: Johannes Schickel
Date: Fri, 11 Dec 2015 19:54:47 +0100
Subject: OPENGL: Only redraw screen when actual changes happened.

---
 backends/graphics/opengl/opengl-graphics.h | 9 +++++++++
 1 file changed, 9 insertions(+)

(limited to 'backends/graphics/opengl/opengl-graphics.h')

diff --git a/backends/graphics/opengl/opengl-graphics.h b/backends/graphics/opengl/opengl-graphics.h
index 3634e145ce..e88c3ae243 100644
--- a/backends/graphics/opengl/opengl-graphics.h
+++ b/backends/graphics/opengl/opengl-graphics.h
@@ -469,6 +469,15 @@ private:
 	 */
 	byte _cursorPalette[3 * 256];
 
+	//
+	// Misc
+	//
+
+	/**
+	 * Whether the screen contents shall be forced to redrawn.
+	 */
+	bool _forceRedraw;
+
 	/**
 	 * Draws a rectangle
 	 */
-- 
cgit v1.2.3


From 693834e8c6e9bf01925dc1731dad44d15f880be9 Mon Sep 17 00:00:00 2001
From: Johannes Schickel
Date: Fri, 11 Dec 2015 21:22:42 +0100
Subject: OPENGL: Implement black borders using scissor test.

---
 backends/graphics/opengl/opengl-graphics.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'backends/graphics/opengl/opengl-graphics.h')

diff --git a/backends/graphics/opengl/opengl-graphics.h b/backends/graphics/opengl/opengl-graphics.h
index e88c3ae243..9578839383 100644
--- a/backends/graphics/opengl/opengl-graphics.h
+++ b/backends/graphics/opengl/opengl-graphics.h
@@ -479,9 +479,9 @@ private:
 	bool _forceRedraw;
 
 	/**
-	 * Draws a rectangle
+	 * Number of frames glClear shall ignore scissor testing.
 	 */
-	void drawRect(GLfloat x, GLfloat y, GLfloat w, GLfloat h);
+	uint _scissorOverride;
 
 #ifdef USE_OSD
 	//
-- 
cgit v1.2.3