Next step in transaction implementation. Now it postpones all calls.

NOTE: This breaks most ports, and they will not pass assertions. If you will
fix it (by moving violating OSystem calls to go() method), I'll be grateful.
If you don't bother to fix it, there is a workaround. Just comment out
beginGFXTransaction() and endGFXTransaction() in backends/sdl/graphics.cpp.
This will tunr it off and will use default transaction-less implementation.

svn-id: r15870

1 files changed, 4 insertions, 14 deletions

diff --git a/backends/sdl/sdl.cpp b/backends/sdl/sdl.cpp
index 7883d292f5..80d9d62dfa 100644
--- a/backends/sdl/sdl.cpp
+++ b/backends/sdl/sdl.cpp
@@ -104,7 +104,7 @@ OSystem_SDL::OSystem_SDL()
 	_mouseHotspotX(0), _mouseHotspotY(0),
 	_currentShakePos(0), _newShakePos(0),
 	_paletteDirtyStart(0), _paletteDirtyEnd(0),
-	_graphicsMutex(0) {
+	_graphicsMutex(0), _transactionMode(kTransactionNone) {
 
 	// allocate palette storage
 	_currentPalette = (SDL_Color *)calloc(sizeof(SDL_Color), 256);
@@ -160,19 +160,7 @@ void OSystem_SDL::setFeatureState(Feature f, bool enable) {
 		setFullscreenMode(enable);
 		break;
 	case kFeatureAspectRatioCorrection:
-		if (_screenHeight == 200 && _adjustAspectRatio != enable) {
-			Common::StackLock lock(_graphicsMutex);
-
-			//assert(_hwscreen != 0);
-			_adjustAspectRatio ^= true;
-			hotswap_gfx_mode();
-			
-			// Blit everything to the screen
-			internUpdateScreen();
-			
-			// Make sure that an EVENT_SCREEN_CHANGED gets sent later
-			_modeChanged = true;
-		}
+		setAspectRatioCorrection(enable);
 		break;
 	case kFeatureAutoComputeDirtyRects:
 		if (enable)
@@ -186,6 +174,8 @@ void OSystem_SDL::setFeatureState(Feature f, bool enable) {
 }
 
 bool OSystem_SDL::getFeatureState(Feature f) {
+	assert (_transactionMode != kTransactionNone);
+
 	switch (f) {
 	case kFeatureFullscreenMode:
 		return _full_screen;