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-rw-r--r--engines/wintermute/base/gfx/osystem/base_render_osystem.cpp11
-rw-r--r--engines/wintermute/base/gfx/osystem/base_render_osystem.h1
2 files changed, 10 insertions, 2 deletions
diff --git a/engines/wintermute/base/gfx/osystem/base_render_osystem.cpp b/engines/wintermute/base/gfx/osystem/base_render_osystem.cpp
index b53aef802d..f6ace34ce4 100644
--- a/engines/wintermute/base/gfx/osystem/base_render_osystem.cpp
+++ b/engines/wintermute/base/gfx/osystem/base_render_osystem.cpp
@@ -62,6 +62,8 @@ BaseRenderOSystem::BaseRenderOSystem(BaseGame *inGame) : BaseRenderer(inGame) {
if (ConfMan.hasKey("dirty_rects")) {
_disableDirtyRects = !ConfMan.getBool("dirty_rects");
}
+
+ _lastScreenChangeID = g_system->getScreenChangeID();
}
//////////////////////////////////////////////////////////////////////////
@@ -183,8 +185,13 @@ bool BaseRenderOSystem::flip() {
}
}
}
- if (_needsFlip || _disableDirtyRects) {
- if (_disableDirtyRects) {
+
+ int oldScreenChangeID = _lastScreenChangeID;
+ _lastScreenChangeID = g_system->getScreenChangeID();
+ bool screenChanged = _lastScreenChangeID != oldScreenChangeID;
+
+ if (_needsFlip || _disableDirtyRects || screenChanged) {
+ if (_disableDirtyRects || screenChanged) {
g_system->copyRectToScreen((byte *)_renderSurface->getPixels(), _renderSurface->pitch, 0, 0, _renderSurface->w, _renderSurface->h);
}
// g_system->copyRectToScreen((byte *)_renderSurface->getPixels(), _renderSurface->pitch, _dirtyRect->left, _dirtyRect->top, _dirtyRect->width(), _dirtyRect->height());
diff --git a/engines/wintermute/base/gfx/osystem/base_render_osystem.h b/engines/wintermute/base/gfx/osystem/base_render_osystem.h
index fa0b2afc40..8996c8b2e8 100644
--- a/engines/wintermute/base/gfx/osystem/base_render_osystem.h
+++ b/engines/wintermute/base/gfx/osystem/base_render_osystem.h
@@ -146,6 +146,7 @@ private:
uint32 _clearColor;
bool _skipThisFrame;
+ int _lastScreenChangeID; // previous value of OSystem::getScreenChangeID()
};
} // End of namespace Wintermute