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Move video redraw out of FastTimer and instead to a dedicated thread …
…synced with VDP via REG_SCANLINE from #3
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89 changes: 89 additions & 0 deletions
89
v9t9/v9t9-java/v9t9-common/src/v9t9/common/video/VideoThread.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,89 @@ | ||
| /** | ||
| * | ||
| */ | ||
| package v9t9.common.video; | ||
|
|
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| import java.io.PrintWriter; | ||
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| import ejs.base.properties.IProperty; | ||
| import ejs.base.settings.Logging; | ||
| import v9t9.common.client.ISettingsHandler; | ||
| import v9t9.common.client.IVideoRenderer; | ||
| import v9t9.common.cpu.ICpu; | ||
| import v9t9.common.hardware.IVdpChip; | ||
|
|
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| /** | ||
| * @author ejs | ||
| * | ||
| */ | ||
| public class VideoThread extends Thread { | ||
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| private IVideoRenderer videoRenderer; | ||
| private Object sync; | ||
| private IProperty dumpVdpAccess; | ||
| private IProperty dumpFullInstructions; | ||
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| public VideoThread(IVideoRenderer videoRenderer) { | ||
| setName("Video Thread"); | ||
| this.videoRenderer = videoRenderer; | ||
| sync = new Object(); | ||
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| ISettingsHandler settings = videoRenderer.getVdpHandler().getMachine().getSettings(); | ||
| dumpVdpAccess = settings.get(IVdpChip.settingDumpVdpAccess); | ||
| dumpFullInstructions = settings.get(ICpu.settingDumpFullInstructions); | ||
| } | ||
|
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| /** | ||
| * Invoke Object#notifyAll() on this object to trigger | ||
| * a redraw. | ||
| * @return | ||
| */ | ||
| public Object getSync() { | ||
| return sync; | ||
| } | ||
|
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| @Override | ||
| public void run() { | ||
| synchronized (sync) { | ||
| while (!isInterrupted()) { | ||
| try { | ||
| // attempt update at least once a second even if the | ||
| // CPU and/or video threads are somehow frozen | ||
| sync.wait(1000); | ||
|
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| // got notify | ||
| synchronized (videoRenderer.getVdpHandler()) { | ||
| synchronized (videoRenderer) { | ||
| synchronized (videoRenderer.getCanvasHandler()) { | ||
| synchronized (videoRenderer.getCanvas()) { | ||
| updateVideo(); | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } catch (InterruptedException e) { | ||
| break; | ||
| } | ||
| } | ||
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| } | ||
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| System.out.println("Exiting video thread"); | ||
| } | ||
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| private void log(String msg) { | ||
| if (dumpVdpAccess.getBoolean()) { | ||
| PrintWriter pw = Logging.getLog(dumpFullInstructions); | ||
| if (pw != null) | ||
| pw.println("[VideoThread] " + msg); | ||
| } | ||
| } | ||
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| public void updateVideo() { | ||
| if (videoRenderer.isIdle() && videoRenderer.isVisible()) { | ||
| log("updating VDP canvas"); | ||
| videoRenderer.getCanvasHandler().update(); | ||
| videoRenderer.queueRedraw(); | ||
| } | ||
| } | ||
| } |
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