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Viewport: Reduce unnecessary region redraws when scrolling viewports

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Jonathan G Rennison
2020-02-09 00:34:47 +00:00
parent 4d9e07e885
commit a152e2327c
11 changed files with 144 additions and 52 deletions
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2
src/blitter/base.hpp
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@@ -198,7 +198,7 @@ public:
* @param scroll_x How much to scroll in X.
* @param scroll_y How much to scroll in Y.
*/
virtual void ScrollBuffer(void *video, int &left, int &top, int &width, int &height, int scroll_x, int scroll_y) = 0;
virtual void ScrollBuffer(void *video, int left, int top, int width, int height, int scroll_x, int scroll_y) = 0;
/**
* Calculate how much memory there is needed for an image of this size in the video-buffer.