From 1feb86ee97eaaaf326918d4945cdaa0a2f61d33f Mon Sep 17 00:00:00 2001
From: Cameron Cawley
Date: Sat, 27 Jul 2019 14:40:50 +0100
Subject: BACKENDS: Handle screen shaking in WindowedGraphicsManager

---
 backends/graphics/gph/gph-graphics.cpp | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

(limited to 'backends/graphics/gph')

diff --git a/backends/graphics/gph/gph-graphics.cpp b/backends/graphics/gph/gph-graphics.cpp
index a55a8869bb..cb3e09ac49 100644
--- a/backends/graphics/gph/gph-graphics.cpp
+++ b/backends/graphics/gph/gph-graphics.cpp
@@ -78,6 +78,8 @@ ScalerProc *GPHGraphicsManager::getGraphicsScalerProc(int mode) const {
 void GPHGraphicsManager::initSize(uint w, uint h, const Graphics::PixelFormat *format) {
 	assert(_transactionMode == kTransactionActive);
 
+	_gameScreenShakeOffset = 0;
+
 #ifdef USE_RGB_COLOR
 	// Avoid redundant format changes
 	Graphics::PixelFormat newFormat;
@@ -216,16 +218,16 @@ void GPHGraphicsManager::internUpdateScreen() {
 #endif
 
 	// If the shake position changed, fill the dirty area with blackness
-	if (_currentShakePos != _newShakePos ||
-	        (_cursorNeedsRedraw && _mouseBackup.y <= _currentShakePos)) {
-		SDL_Rect blackrect = {0, 0, _videoMode.screenWidth *_videoMode.scaleFactor, _newShakePos *_videoMode.scaleFactor};
+	if (_currentShakePos != _gameScreenShakeOffset ||
+		(_cursorNeedsRedraw && _mouseBackup.y <= _currentShakePos)) {
+		SDL_Rect blackrect = {0, 0, (Uint16)(_videoMode.screenWidth * _videoMode.scaleFactor), (Uint16)(_gameScreenShakeOffset * _videoMode.scaleFactor)};
 
 		if (_videoMode.aspectRatioCorrection && !_overlayVisible)
 			blackrect.h = real2Aspect(blackrect.h - 1) + 1;
 
 		SDL_FillRect(_hwScreen, &blackrect, 0);
 
-		_currentShakePos = _newShakePos;
+		_currentShakePos = _gameScreenShakeOffset;
 
 		_forceRedraw = true;
 	}
-- 
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