OPENGL: Redesign blitting system. Add basics for aspect correction.

Removed the extra surface in GLTexture. Now there are copies of the texture data in their original format (so engine can get the original data when lockScreen or grabOverlay is called). This copies will be updated when the engine calls a function that modifies the game screen/overlay, and the textures will be marked as dirty. When updating screen, the textures will be updated from the copies data if they are dirty.

svn-id: r51234

2 files changed, 29 insertions, 3 deletions

diff --git a/backends/graphics/openglsdl/openglsdl-graphics.cpp b/backends/graphics/openglsdl/openglsdl-graphics.cpp
index aa0a9aa717..6f2ba0df9c 100644
--- a/backends/graphics/openglsdl/openglsdl-graphics.cpp
+++ b/backends/graphics/openglsdl/openglsdl-graphics.cpp
@@ -44,6 +44,28 @@ OpenGLSdlGraphicsManager::~OpenGLSdlGraphicsManager() {
 
 }
 
+
+bool OpenGLSdlGraphicsManager::hasFeature(OSystem::Feature f) {
+	return
+		(f == OSystem::kFeatureFullscreenMode) ||
+		(f == OSystem::kFeatureIconifyWindow) ||
+		OpenGLGraphicsManager::hasFeature(f);
+}
+
+void OpenGLSdlGraphicsManager::setFeatureState(OSystem::Feature f, bool enable) {
+	switch (f) {
+	case OSystem::kFeatureFullscreenMode:
+		setFullscreenMode(enable);
+		break;
+	case OSystem::kFeatureIconifyWindow:
+		if (enable)
+			SDL_WM_IconifyWindow();
+		break;
+	default:
+		OpenGLGraphicsManager::setFeatureState(f, enable);
+	}
+}
+
 #ifdef USE_RGB_COLOR
 
 const Graphics::PixelFormat RGBList[] = {
@@ -202,9 +224,9 @@ void OpenGLSdlGraphicsManager::internUpdateScreen() {
 bool OpenGLSdlGraphicsManager::handleScalerHotkeys(Common::KeyCode key) {
 
 	// Ctrl-Alt-a toggles aspect ratio correction
-	/*if (key == 'a') {
+	if (key == 'a') {
 		beginGFXTransaction();
-			setFeatureState(OSystem::kFeatureAspectRatioCorrection, !_videoMode.aspectRatioCorrection);
+			setAspectRatioCorrection(-1);
 		endGFXTransaction();
 #ifdef USE_OSD
 		char buffer[128];
@@ -222,7 +244,7 @@ bool OpenGLSdlGraphicsManager::handleScalerHotkeys(Common::KeyCode key) {
 #endif
 		internUpdateScreen();
 		return true;
-	}*/
+	}
 
 	// Ctrl-Alt-f toggles antialiasing
 	if (key == 'f') {
@@ -329,6 +351,7 @@ bool OpenGLSdlGraphicsManager::notifyEvent(const Common::Event &event) {
 			_videoMode.hardwareHeight = event.mouse.y;
 			_screenResized = true;
 			_transactionDetails.sizeChanged = true;
+			_transactionDetails.newContext = true;
 		endGFXTransaction();
 		return true;
 
diff --git a/backends/graphics/openglsdl/openglsdl-graphics.h b/backends/graphics/openglsdl/openglsdl-graphics.h
index b0bf12cd4d..f11782131c 100644
--- a/backends/graphics/openglsdl/openglsdl-graphics.h
+++ b/backends/graphics/openglsdl/openglsdl-graphics.h
@@ -42,6 +42,9 @@ public:
 	OpenGLSdlGraphicsManager();
 	virtual ~OpenGLSdlGraphicsManager();
 
+	virtual bool hasFeature(OSystem::Feature f);
+	virtual void setFeatureState(OSystem::Feature f, bool enable);
+
 #ifdef USE_RGB_COLOR
 	virtual Common::List<Graphics::PixelFormat> getSupportedFormats() const;
 #endif