diff options
Diffstat (limited to 'renderScript/RenderScriptIntrinsic/Application/src/main/java/com/example/android/renderscriptintrinsic/MainActivity.java')
| -rw-r--r-- | renderScript/RenderScriptIntrinsic/Application/src/main/java/com/example/android/renderscriptintrinsic/MainActivity.java | 141 |
1 files changed, 63 insertions, 78 deletions
diff --git a/renderScript/RenderScriptIntrinsic/Application/src/main/java/com/example/android/renderscriptintrinsic/MainActivity.java b/renderScript/RenderScriptIntrinsic/Application/src/main/java/com/example/android/renderscriptintrinsic/MainActivity.java index 4b6f5ce1..fa1e6f5b 100644 --- a/renderScript/RenderScriptIntrinsic/Application/src/main/java/com/example/android/renderscriptintrinsic/MainActivity.java +++ b/renderScript/RenderScriptIntrinsic/Application/src/main/java/com/example/android/renderscriptintrinsic/MainActivity.java @@ -16,25 +16,32 @@ package com.example.android.renderscriptintrinsic; -import android.app.Activity; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.os.AsyncTask; import android.os.Bundle; +import android.support.v7.app.AppCompatActivity; +import android.support.v7.widget.Toolbar; +import android.support.v8.renderscript.Allocation; +import android.support.v8.renderscript.Element; +import android.support.v8.renderscript.Matrix3f; +import android.support.v8.renderscript.RenderScript; +import android.support.v8.renderscript.ScriptIntrinsicBlur; +import android.support.v8.renderscript.ScriptIntrinsicColorMatrix; +import android.support.v8.renderscript.ScriptIntrinsicConvolve5x5; import android.widget.CompoundButton; import android.widget.CompoundButton.OnCheckedChangeListener; import android.widget.ImageView; import android.widget.RadioButton; import android.widget.SeekBar; import android.widget.SeekBar.OnSeekBarChangeListener; -import android.support.v8.renderscript.*; -public class MainActivity extends Activity { - /* Number of bitmaps that is used for renderScript thread and UI thread synchronization. - Ideally, this can be reduced to 2, however in some devices, 2 buffers still showing tierings on UI. - Investigating a root cause. +public class MainActivity extends AppCompatActivity { + + /** + * Number of bitmaps that is used for renderScript thread and UI thread synchronization. */ - private final int NUM_BITMAPS = 3; + private final int NUM_BITMAPS = 2; private int mCurrentBitmap = 0; private Bitmap mBitmapIn; private Bitmap[] mBitmapsOut; @@ -59,14 +66,10 @@ public class MainActivity extends Activity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); - setContentView(R.layout.main_layout); + setSupportActionBar((Toolbar) findViewById(R.id.toolbar)); - /* - * Initialize UI - */ - - //Set up main image view + // Set up main image view mBitmapIn = loadBitmap(R.drawable.data); mBitmapsOut = new Bitmap[NUM_BITMAPS]; for (int i = 0; i < NUM_BITMAPS; ++i) { @@ -131,20 +134,13 @@ public class MainActivity extends Activity { } }); - /* - * Create renderScript - */ + // Create renderScript createScript(); - /* - * Create thumbnails - */ + // Create thumbnails createThumbnail(); - - /* - * Invoke renderScript kernel and update imageView - */ + // Invoke renderScript kernel and update imageView mFilterMode = MODE_BLUR; updateImage(50); } @@ -159,12 +155,10 @@ public class MainActivity extends Activity { mOutAllocations[i] = Allocation.createFromBitmap(mRS, mBitmapsOut[i]); } - /* - Create intrinsics. - RenderScript has built-in features such as blur, convolve filter etc. - These intrinsics are handy for specific operations without writing RenderScript kernel. - In the sample, it's creating blur, convolve and matrix intrinsics. - */ + // Create intrinsics. + // RenderScript has built-in features such as blur, convolve filter etc. + // These intrinsics are handy for specific operations without writing RenderScript kernel. + // In the sample, it's creating blur, convolve and matrix intrinsics. mScriptBlur = ScriptIntrinsicBlur.create(mRS, Element.U8_4(mRS)); mScriptConvolve = ScriptIntrinsicConvolve5x5.create(mRS, @@ -177,18 +171,15 @@ public class MainActivity extends Activity { Allocation outAllocation, Bitmap bitmapOut, float value) { switch (mFilterMode) { case MODE_BLUR: - /* - * Set blur kernel size - */ + // Set blur kernel size mScriptBlur.setRadius(value); - /* - * Invoke filter kernel - */ + // Invoke filter kernel mScriptBlur.setInput(inAllocation); mScriptBlur.forEach(outAllocation); break; case MODE_CONVOLVE: { + @SuppressWarnings("UnnecessaryLocalVariable") float f1 = value; float f2 = 1.0f - f1; @@ -196,24 +187,18 @@ public class MainActivity extends Activity { float coefficients[] = {-f1 * 2, 0, -f1, 0, 0, 0, -f2 * 2, -f2, 0, 0, -f1, -f2, 1, f2, f1, 0, 0, f2, f2 * 2, 0, 0, 0, f1, 0, f1 * 2,}; - /* - * Set kernel parameter - */ + // Set kernel parameter mScriptConvolve.setCoefficients(coefficients); - /* - * Invoke filter kernel - */ + // Invoke filter kernel mScriptConvolve.setInput(inAllocation); mScriptConvolve.forEach(outAllocation); break; } case MODE_COLORMATRIX: { - /* - * Set HUE rotation matrix - * The matrix below performs a combined operation of, - * RGB->HSV transform * HUE rotation * HSV->RGB transform - */ + // Set HUE rotation matrix + // The matrix below performs a combined operation of, + // RGB->HSV transform * HUE rotation * HSV->RGB transform float cos = (float) Math.cos((double) value); float sin = (float) Math.sin((double) value); Matrix3f mat = new Matrix3f(); @@ -228,23 +213,19 @@ public class MainActivity extends Activity { mat.set(2, 2, (float) (.114 + .886 * cos - .203 * sin)); mScriptMatrix.setColorMatrix(mat); - /* - * Invoke filter kernel - */ + // Invoke filter kernel mScriptMatrix.forEach(inAllocation, outAllocation); } break; } - /* - * Copy to bitmap and invalidate image view - */ + // Copy to bitmap and invalidate image view outAllocation.copyTo(bitmapOut); } - /* - Convert seekBar progress parameter (0-100 in range) to parameter for each intrinsic filter. - (e.g. 1.0-25.0 in Blur filter) + /** + * Convert seekBar progress parameter (0-100 in range) to parameter for each intrinsic filter. + * (e.g. 1.0-25.0 in Blur filter) */ private float getFilterParameter(int i) { float f = 0.f; @@ -269,21 +250,24 @@ public class MainActivity extends Activity { break; } return f; - } - /* + /** * In the AsyncTask, it invokes RenderScript intrinsics to do a filtering. - * After the filtering is done, an operation blocks at Allication.copyTo() in AsyncTask thread. - * Once all operation is finished at onPostExecute() in UI thread, it can invalidate and update ImageView UI. + * + * <p>After the filtering is done, an operation blocks at Allocation.copyTo() in AsyncTask + * thread. Once all operation is finished at onPostExecute() in UI thread, it can invalidate + * and + * update ImageView UI.</p> */ private class RenderScriptTask extends AsyncTask<Float, Integer, Integer> { - Boolean issued = false; + + private boolean mIssued; protected Integer doInBackground(Float... values) { int index = -1; - if (isCancelled() == false) { - issued = true; + if (!isCancelled()) { + mIssued = true; index = mCurrentBitmap; performFilter(mInAllocation, mOutAllocations[index], mBitmapsOut[index], values[0]); @@ -305,16 +289,17 @@ public class MainActivity extends Activity { } protected void onCancelled(Integer result) { - if (issued) { + if (mIssued) { updateView(result); } } } - /* - Invoke AsynchTask and cancel previous task. - When AsyncTasks are piled up (typically in slow device with heavy kernel), - Only the latest (and already started) task invokes RenderScript operation. + /** + * Invoke AsyncTask and cancel previous task. + * + * <p>When AsyncTasks are piled up (typically in slow device with heavy kernel), + * Only the latest (and already started) task invokes RenderScript operation.</p> */ private void updateImage(int progress) { float f = getFilterParameter(progress); @@ -326,8 +311,8 @@ public class MainActivity extends Activity { mLatestTask.execute(f); } - /* - Helper to load Bitmap from resource + /** + * Helper to load Bitmap from resource */ private Bitmap loadBitmap(int resource) { final BitmapFactory.Options options = new BitmapFactory.Options(); @@ -335,9 +320,9 @@ public class MainActivity extends Activity { return BitmapFactory.decodeResource(getResources(), resource, options); } - /* - Create thumbNail for UI. It invokes RenderScript kernel synchronously in UI-thread, - which is OK for small thumbnail (but not ideal). + /** + * Create thumbNail for UI. It invokes RenderScript kernel synchronously in UI-thread, + * which is OK for small thumbnail (but not ideal). */ private void createThumbnail() { int width = 72; @@ -346,11 +331,11 @@ public class MainActivity extends Activity { int pixelsWidth = (int) (width * scale + 0.5f); int pixelsHeight = (int) (height * scale + 0.5f); - //Temporary image + // Temporary image Bitmap tempBitmap = Bitmap.createScaledBitmap(mBitmapIn, pixelsWidth, pixelsHeight, false); Allocation inAllocation = Allocation.createFromBitmap(mRS, tempBitmap); - //Create thumbnail with each RS intrinsic and set it to radio buttons + // Create thumbnail with each RS intrinsic and set it to radio buttons int[] modes = {MODE_BLUR, MODE_CONVOLVE, MODE_COLORMATRIX}; int[] ids = {R.id.radio0, R.id.radio1, R.id.radio2}; int[] parameter = {50, 100, 25}; @@ -358,13 +343,13 @@ public class MainActivity extends Activity { mFilterMode = mode; float f = getFilterParameter(parameter[mode]); - Bitmap destBitpmap = Bitmap.createBitmap(tempBitmap.getWidth(), + Bitmap destBitmap = Bitmap.createBitmap(tempBitmap.getWidth(), tempBitmap.getHeight(), tempBitmap.getConfig()); - Allocation outAllocation = Allocation.createFromBitmap(mRS, destBitpmap); - performFilter(inAllocation, outAllocation, destBitpmap, f); + Allocation outAllocation = Allocation.createFromBitmap(mRS, destBitmap); + performFilter(inAllocation, outAllocation, destBitmap, f); ThumbnailRadioButton button = (ThumbnailRadioButton) findViewById(ids[mode]); - button.setThumbnail(destBitpmap); + button.setThumbnail(destBitmap); } } } |