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java samples fix (clear view before drawing frame) of 'dirty' FPS display bug

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This commit is contained in:
Andrey Pavlenko 2012-09-28 18:18:34 +04:00
parent 9ee87bd04b
commit a8e7f91e34
7 changed files with 7 additions and 0 deletions
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1
samples/android/15-puzzle/src/org/opencv/samples/puzzle15/SampleCvViewBase.java
View File

@ -105,6 +105,7 @@ public abstract class SampleCvViewBase extends SurfaceView implements SurfaceHol
if (bmp != null) { if (bmp != null) {
Canvas canvas = mHolder.lockCanvas(); Canvas canvas = mHolder.lockCanvas();
if (canvas != null) { if (canvas != null) {
canvas.drawColor(0, android.graphics.PorterDuff.Mode.CLEAR);
canvas.drawBitmap(bmp, (canvas.getWidth() - bmp.getWidth()) / 2, (canvas.getHeight() - bmp.getHeight()) / 2, null); canvas.drawBitmap(bmp, (canvas.getWidth() - bmp.getWidth()) / 2, (canvas.getHeight() - bmp.getHeight()) / 2, null);
mHolder.unlockCanvasAndPost(canvas); mHolder.unlockCanvasAndPost(canvas);
} }

1
samples/android/face-detection/src/org/opencv/samples/fd/SampleCvViewBase.java
View File

@ -110,6 +110,7 @@ public abstract class SampleCvViewBase extends SurfaceView implements SurfaceHol
if (bmp != null) { if (bmp != null) {
Canvas canvas = mHolder.lockCanvas(); Canvas canvas = mHolder.lockCanvas();
if (canvas != null) { if (canvas != null) {
canvas.drawColor(0, android.graphics.PorterDuff.Mode.CLEAR);
canvas.drawBitmap(bmp, (canvas.getWidth() - bmp.getWidth()) / 2, (canvas.getHeight() - bmp.getHeight()) / 2, null); canvas.drawBitmap(bmp, (canvas.getWidth() - bmp.getWidth()) / 2, (canvas.getHeight() - bmp.getHeight()) / 2, null);
mFps.draw(canvas, (canvas.getWidth() - bmp.getWidth()) / 2, 0); mFps.draw(canvas, (canvas.getWidth() - bmp.getWidth()) / 2, 0);
mHolder.unlockCanvasAndPost(canvas); mHolder.unlockCanvasAndPost(canvas);

1
samples/android/image-manipulations/src/org/opencv/samples/imagemanipulations/SampleCvViewBase.java
View File

@ -111,6 +111,7 @@ public abstract class SampleCvViewBase extends SurfaceView implements SurfaceHol
if (bmp != null) { if (bmp != null) {
Canvas canvas = mHolder.lockCanvas(); Canvas canvas = mHolder.lockCanvas();
if (canvas != null) { if (canvas != null) {
canvas.drawColor(0, android.graphics.PorterDuff.Mode.CLEAR);
canvas.drawBitmap(bmp, (canvas.getWidth() - bmp.getWidth()) / 2, (canvas.getHeight() - bmp.getHeight()), null); canvas.drawBitmap(bmp, (canvas.getWidth() - bmp.getWidth()) / 2, (canvas.getHeight() - bmp.getHeight()), null);
mFps.draw(canvas, (canvas.getWidth() - bmp.getWidth()) / 2, 0); mFps.draw(canvas, (canvas.getWidth() - bmp.getWidth()) / 2, 0);
mHolder.unlockCanvasAndPost(canvas); mHolder.unlockCanvasAndPost(canvas);

1
samples/android/tutorial-0-androidcamera/src/org/opencv/samples/tutorial0/SampleViewBase.java
View File

@ -218,6 +218,7 @@ public abstract class SampleViewBase extends SurfaceView implements SurfaceHolde
if (bmp != null) { if (bmp != null) {
Canvas canvas = mHolder.lockCanvas(); Canvas canvas = mHolder.lockCanvas();
if (canvas != null) { if (canvas != null) {
canvas.drawColor(0, android.graphics.PorterDuff.Mode.CLEAR);
canvas.drawBitmap(bmp, (canvas.getWidth() - getFrameWidth()) / 2, (canvas.getHeight() - getFrameHeight()) / 2, null); canvas.drawBitmap(bmp, (canvas.getWidth() - getFrameWidth()) / 2, (canvas.getHeight() - getFrameHeight()) / 2, null);
mHolder.unlockCanvasAndPost(canvas); mHolder.unlockCanvasAndPost(canvas);
} }

1
samples/android/tutorial-1-addopencv/src/org/opencv/samples/tutorial1/SampleViewBase.java
View File

@ -218,6 +218,7 @@ public abstract class SampleViewBase extends SurfaceView implements SurfaceHolde
if (bmp != null) { if (bmp != null) {
Canvas canvas = mHolder.lockCanvas(); Canvas canvas = mHolder.lockCanvas();
if (canvas != null) { if (canvas != null) {
canvas.drawColor(0, android.graphics.PorterDuff.Mode.CLEAR);
canvas.drawBitmap(bmp, (canvas.getWidth() - getFrameWidth()) / 2, (canvas.getHeight() - getFrameHeight()) / 2, null); canvas.drawBitmap(bmp, (canvas.getWidth() - getFrameWidth()) / 2, (canvas.getHeight() - getFrameHeight()) / 2, null);
mHolder.unlockCanvasAndPost(canvas); mHolder.unlockCanvasAndPost(canvas);
} }

1
samples/android/tutorial-3-native/src/org/opencv/samples/tutorial3/SampleViewBase.java
View File

@ -218,6 +218,7 @@ public abstract class SampleViewBase extends SurfaceView implements SurfaceHolde
if (bmp != null) { if (bmp != null) {
Canvas canvas = mHolder.lockCanvas(); Canvas canvas = mHolder.lockCanvas();
if (canvas != null) { if (canvas != null) {
canvas.drawColor(0, android.graphics.PorterDuff.Mode.CLEAR);
canvas.drawBitmap(bmp, (canvas.getWidth() - getFrameWidth()) / 2, (canvas.getHeight() - getFrameHeight()) / 2, null); canvas.drawBitmap(bmp, (canvas.getWidth() - getFrameWidth()) / 2, (canvas.getHeight() - getFrameHeight()) / 2, null);
mHolder.unlockCanvasAndPost(canvas); mHolder.unlockCanvasAndPost(canvas);
} }

1
samples/android/tutorial-4-mixed/src/org/opencv/samples/tutorial4/SampleViewBase.java
View File

@ -218,6 +218,7 @@ public abstract class SampleViewBase extends SurfaceView implements SurfaceHolde
if (bmp != null) { if (bmp != null) {
Canvas canvas = mHolder.lockCanvas(); Canvas canvas = mHolder.lockCanvas();
if (canvas != null) { if (canvas != null) {
canvas.drawColor(0, android.graphics.PorterDuff.Mode.CLEAR);
canvas.drawBitmap(bmp, (canvas.getWidth() - getFrameWidth()) / 2, (canvas.getHeight() - getFrameHeight()) / 2, null); canvas.drawBitmap(bmp, (canvas.getWidth() - getFrameWidth()) / 2, (canvas.getHeight() - getFrameHeight()) / 2, null);
mHolder.unlockCanvasAndPost(canvas); mHolder.unlockCanvasAndPost(canvas);
} }