Apple-2-Tools/jace
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Finally fixed the flicker bug introduced in the 2.0 code changes! Passes against various graphics demos without issues (thanks again, French Touch!)

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This commit is contained in:
Brendan Robert 2015-08-12 23:44:44 -05:00
parent 497a5335f6
commit c098d6345b
3 changed files with 30 additions and 18 deletions
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2
README.md
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@ -14,7 +14,7 @@ Jace is a java-based Apple //e emulator with many compelling features:
* MetaCheat also provides a live heat-map showing all RAM activity, color coded to indicate read, write or CPU execution -- Perfect for reverse engineers
* Optional Debugging rom (][DB) can be enabled for a more powerful monitor
* Super serial emulated as a tcp/ip port
* Mockingboard support, partial Phasor support
* Mockingboard and Phasor support
* Highly flexible configuration allows any combination of cards and many extra options. You can even alter configuration while the emulation is running!
![Airheart](https://sites.google.com/site/brendanrobert/_/rsrc/1327073239228/projects/jace/airheart.png?height=250&width=400)

29
src/main/java/jace/apple2e/VideoNTSC.java
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@ -23,6 +23,7 @@ import jace.core.Computer;
import jace.core.RAMEvent;
import jace.core.RAMListener;
import jace.core.Video;
import java.util.Arrays;
import java.util.HashSet;
import java.util.Set;
import javafx.scene.image.PixelWriter;
@ -69,6 +70,9 @@ public class VideoNTSC extends VideoDHGR {
@Override
protected void showBW(WritableImage screen, int x, int y, int dhgrWord) {
int pos = divBy28[x];
if (rowStart < 0) {
rowStart = pos;
}
colorActive[pos * 4] = colorActive[pos * 4 + 1] = colorActive[pos * 4 + 2] = colorActive[pos * 4 + 3] = false;
scanline[pos] = dhgrWord;
}
@ -76,6 +80,9 @@ public class VideoNTSC extends VideoDHGR {
@Override
protected void showDhgr(WritableImage screen, int x, int y, int dhgrWord) {
int pos = divBy28[x];
if (rowStart < 0) {
rowStart = pos;
}
colorActive[pos * 4] = colorActive[pos * 4 + 1] = colorActive[pos * 4 + 2] = colorActive[pos * 4 + 3] = true;
scanline[pos] = dhgrWord;
}
@ -83,6 +90,9 @@ public class VideoNTSC extends VideoDHGR {
@Override
protected void displayLores(WritableImage screen, int xOffset, int y, int rowAddress) {
int pos = xOffset >> 1;
if (rowStart < 0) {
rowStart = pos;
}
colorActive[xOffset * 2] = colorActive[xOffset * 2 + 1] = true;
int data = ((RAM128k) computer.getMemory()).getMainMemory().readByte(rowAddress + xOffset) & 0x0FF;
if ((xOffset & 1) == 0) {
@ -108,6 +118,9 @@ public class VideoNTSC extends VideoDHGR {
@Override
protected void displayDoubleLores(WritableImage screen, int xOffset, int y, int rowAddress) {
int pos = xOffset >> 1;
if (rowStart < 0) {
rowStart = pos;
}
colorActive[xOffset * 2] = colorActive[xOffset * 2 + 1] = true;
int c1 = ((RAM128k) computer.getMemory()).getAuxVideoMemory().readByte(rowAddress + xOffset) & 0x0FF;
if ((y & 7) < 4) {
@ -154,15 +167,15 @@ public class VideoNTSC extends VideoDHGR {
}
private void renderScanline(WritableImage screen, int y) {
PixelWriter writer = screen.getPixelWriter();
// This is equivilant to y*560 but is 5% faster
//int yOffset = ((y << 4) + (y << 5) + (y << 9))+xOffset;
// For some reason this jumps up to 40 in the wayout title screen (?)
int p = 0;
if (rowStart > 0) {
getCurrentWriter().markDirty(y);
if (rowStart != 0) {
// getCurrentWriter().markDirty(y);
p = rowStart * 28;
if (rowStart < 0) {
return;
}
}
PixelWriter writer = screen.getPixelWriter();
// Reset scanline position
int byteCounter = 0;
for (int s = rowStart; s < 20; s++) {
@ -209,6 +222,8 @@ public class VideoNTSC extends VideoDHGR {
// }
// }
}
Arrays.fill(scanline, 0);
rowStart = -1;
}
// y Range [0,1]
public static final double MIN_Y = 0;

17
src/main/java/jace/core/Video.java
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@ -130,15 +130,12 @@ public abstract class Video extends Device {
@ConfigurableField(category = "video", name = "Min. Screen Refesh", defaultValue = "15", description = "Minimum number of miliseconds to wait before trying to redraw.")
public static int MIN_SCREEN_REFRESH = 15;
Runnable redrawScreen = () -> {
visible.getPixelWriter().setPixels(0, 0, 560, 192, video.getPixelReader(), 0, 0);
};
public void redraw() {
screenDirty = false;
javafx.application.Platform.runLater(() -> {
visible.getPixelWriter().setPixels(0, 0, 560, 192, video.getPixelReader(), 0, 0);
});
// screen.drawImage(video, 0, 0, width, height, null);
// if (Emulator.getFrame() != null) {
// Emulator.getFrame().repaintIndicators();
// }
javafx.application.Platform.runLater(redrawScreen);
}
public void vblankStart() {
@ -160,15 +157,15 @@ public abstract class Video extends Device {
setFloatingBus(computer.getMemory().readRaw(scannerAddress + x));
if (hPeriod > 0) {
hPeriod--;
if (hPeriod == 0) {
if (hPeriod <= 1) {
x = -1;
setScannerLocation(currentWriter.getYOffset(y));
}
} else {
if (!isVblank && x < (APPLE_CYCLES_PER_LINE-1)) {
if (!isVblank && x < (APPLE_CYCLES_PER_LINE)) {
draw();
}
if (x >= APPLE_CYCLES_PER_LINE - 1) {
if (x >= APPLE_CYCLES_PER_LINE) {
int yy = y + hblankOffsetY;
if (yy < 0) {
yy += APPLE_SCREEN_LINES;