diff options
Diffstat (limited to 'cropper/src/main/java/com/theartofdev/edmodo/cropper/BitmapUtils.java')
| -rw-r--r-- | cropper/src/main/java/com/theartofdev/edmodo/cropper/BitmapUtils.java | 923 |
1 files changed, 0 insertions, 923 deletions
diff --git a/cropper/src/main/java/com/theartofdev/edmodo/cropper/BitmapUtils.java b/cropper/src/main/java/com/theartofdev/edmodo/cropper/BitmapUtils.java deleted file mode 100644 index 7190bd429..000000000 --- a/cropper/src/main/java/com/theartofdev/edmodo/cropper/BitmapUtils.java +++ /dev/null @@ -1,923 +0,0 @@ -// "Therefore those skilled at the unorthodox -// are infinite as heaven and earth, -// inexhaustible as the great rivers. -// When they come to an end, -// they begin again, -// like the days and months; -// they die and are reborn, -// like the four seasons." -// -// - Sun Tsu, -// "The Art of War" - -package com.theartofdev.edmodo.cropper; - -import android.content.ContentResolver; -import android.content.Context; -import android.graphics.Bitmap; -import android.graphics.BitmapFactory; -import android.graphics.BitmapRegionDecoder; -import android.graphics.Matrix; -import android.graphics.Rect; -import android.graphics.RectF; -import android.net.Uri; -import android.util.Log; -import android.util.Pair; - -import androidx.exifinterface.media.ExifInterface; - -import java.io.Closeable; -import java.io.File; -import java.io.FileNotFoundException; -import java.io.IOException; -import java.io.InputStream; -import java.io.OutputStream; -import java.lang.ref.WeakReference; - -import javax.microedition.khronos.egl.EGL10; -import javax.microedition.khronos.egl.EGLConfig; -import javax.microedition.khronos.egl.EGLContext; -import javax.microedition.khronos.egl.EGLDisplay; - -/** - * Utility class that deals with operations with an ImageView. - */ -final class BitmapUtils { - - static final Rect EMPTY_RECT = new Rect(); - - static final RectF EMPTY_RECT_F = new RectF(); - - /** - * Reusable rectangle for general internal usage - */ - static final RectF RECT = new RectF(); - - /** - * Reusable point for general internal usage - */ - static final float[] POINTS = new float[6]; - - /** - * Reusable point for general internal usage - */ - static final float[] POINTS2 = new float[6]; - /** - * used to save bitmaps during state save and restore so not to reload them. - */ - static Pair<String, WeakReference<Bitmap>> mStateBitmap; - /** - * Used to know the max texture size allowed to be rendered - */ - private static int mMaxTextureSize; - - /** - * Rotate the given image by reading the Exif value of the image (uri).<br> - * If no rotation is required the image will not be rotated.<br> - * New bitmap is created and the old one is recycled. - */ - static RotateBitmapResult rotateBitmapByExif(Bitmap bitmap, Context context, Uri uri) { - ExifInterface ei = null; - try { - InputStream is = context.getContentResolver().openInputStream(uri); - if (is != null) { - ei = new ExifInterface(is); - is.close(); - } - } catch (Exception ignored) { - } - return ei != null ? rotateBitmapByExif(bitmap, ei) : new RotateBitmapResult(bitmap, 0); - } - - /** - * Rotate the given image by given Exif value.<br> - * If no rotation is required the image will not be rotated.<br> - * New bitmap is created and the old one is recycled. - */ - static RotateBitmapResult rotateBitmapByExif(Bitmap bitmap, ExifInterface exif) { - int degrees; - int orientation = - exif.getAttributeInt(ExifInterface.TAG_ORIENTATION, ExifInterface.ORIENTATION_NORMAL); - switch (orientation) { - case ExifInterface.ORIENTATION_ROTATE_90: - degrees = 90; - break; - case ExifInterface.ORIENTATION_ROTATE_180: - degrees = 180; - break; - case ExifInterface.ORIENTATION_ROTATE_270: - degrees = 270; - break; - default: - degrees = 0; - break; - } - return new RotateBitmapResult(bitmap, degrees); - } - - /** - * Decode bitmap from stream using sampling to get bitmap with the requested limit. - */ - static BitmapSampled decodeSampledBitmap(Context context, Uri uri, int reqWidth, int reqHeight) { - - try { - ContentResolver resolver = context.getContentResolver(); - - // First decode with inJustDecodeBounds=true to check dimensions - BitmapFactory.Options options = decodeImageForOption(resolver, uri); - - if (options.outWidth == -1 && options.outHeight == -1) - throw new RuntimeException("File is not a picture"); - - // Calculate inSampleSize - options.inSampleSize = - Math.max( - calculateInSampleSizeByReqestedSize( - options.outWidth, options.outHeight, reqWidth, reqHeight), - calculateInSampleSizeByMaxTextureSize(options.outWidth, options.outHeight)); - - // Decode bitmap with inSampleSize set - Bitmap bitmap = decodeImage(resolver, uri, options); - - return new BitmapSampled(bitmap, options.inSampleSize); - - } catch (Exception e) { - throw new RuntimeException( - "Failed to load sampled bitmap: " + uri + "\r\n" + e.getMessage(), e); - } - } - - /** - * Crop image bitmap from given bitmap using the given points in the original bitmap and the given - * rotation.<br> - * if the rotation is not 0,90,180 or 270 degrees then we must first crop a larger area of the - * image that contains the requires rectangle, rotate and then crop again a sub rectangle.<br> - * If crop fails due to OOM we scale the cropping image by 0.5 every time it fails until it is - * small enough. - */ - static BitmapSampled cropBitmapObjectHandleOOM( - Bitmap bitmap, - float[] points, - int degreesRotated, - boolean fixAspectRatio, - int aspectRatioX, - int aspectRatioY, - boolean flipHorizontally, - boolean flipVertically) { - int scale = 1; - while (true) { - try { - Bitmap cropBitmap = - cropBitmapObjectWithScale( - bitmap, - points, - degreesRotated, - fixAspectRatio, - aspectRatioX, - aspectRatioY, - 1 / (float) scale, - flipHorizontally, - flipVertically); - return new BitmapSampled(cropBitmap, scale); - } catch (OutOfMemoryError e) { - scale *= 2; - if (scale > 8) { - throw e; - } - } - } - } - - /** - * Crop image bitmap from given bitmap using the given points in the original bitmap and the given - * rotation.<br> - * if the rotation is not 0,90,180 or 270 degrees then we must first crop a larger area of the - * image that contains the requires rectangle, rotate and then crop again a sub rectangle. - * - * @param scale how much to scale the cropped image part, use 0.5 to lower the image by half (OOM - * handling) - */ - private static Bitmap cropBitmapObjectWithScale( - Bitmap bitmap, - float[] points, - int degreesRotated, - boolean fixAspectRatio, - int aspectRatioX, - int aspectRatioY, - float scale, - boolean flipHorizontally, - boolean flipVertically) { - - // get the rectangle in original image that contains the required cropped area (larger for non - // rectangular crop) - Rect rect = - getRectFromPoints( - points, - bitmap.getWidth(), - bitmap.getHeight(), - fixAspectRatio, - aspectRatioX, - aspectRatioY); - - // crop and rotate the cropped image in one operation - Matrix matrix = new Matrix(); - matrix.setRotate(degreesRotated, bitmap.getWidth() / 2, bitmap.getHeight() / 2); - matrix.postScale(flipHorizontally ? -scale : scale, flipVertically ? -scale : scale); - Bitmap result = - Bitmap.createBitmap(bitmap, rect.left, rect.top, rect.width(), rect.height(), matrix, true); - - if (result == bitmap) { - // corner case when all bitmap is selected, no worth optimizing for it - result = bitmap.copy(bitmap.getConfig(), false); - } - - // rotating by 0, 90, 180 or 270 degrees doesn't require extra cropping - if (degreesRotated % 90 != 0) { - - // extra crop because non rectangular crop cannot be done directly on the image without - // rotating first - result = - cropForRotatedImage( - result, points, rect, degreesRotated, fixAspectRatio, aspectRatioX, aspectRatioY); - } - - return result; - } - - /** - * Crop image bitmap from URI by decoding it with specific width and height to down-sample if - * required.<br> - * Additionally if OOM is thrown try to increase the sampling (2,4,8). - */ - static BitmapSampled cropBitmap( - Context context, - Uri loadedImageUri, - float[] points, - int degreesRotated, - int orgWidth, - int orgHeight, - boolean fixAspectRatio, - int aspectRatioX, - int aspectRatioY, - int reqWidth, - int reqHeight, - boolean flipHorizontally, - boolean flipVertically) { - int sampleMulti = 1; - while (true) { - try { - // if successful, just return the resulting bitmap - return cropBitmap( - context, - loadedImageUri, - points, - degreesRotated, - orgWidth, - orgHeight, - fixAspectRatio, - aspectRatioX, - aspectRatioY, - reqWidth, - reqHeight, - flipHorizontally, - flipVertically, - sampleMulti); - } catch (OutOfMemoryError e) { - // if OOM try to increase the sampling to lower the memory usage - sampleMulti *= 2; - if (sampleMulti > 16) { - throw new RuntimeException( - "Failed to handle OOM by sampling (" - + sampleMulti - + "): " - + loadedImageUri - + "\r\n" - + e.getMessage(), - e); - } - } - } - } - - /** - * Get left value of the bounding rectangle of the given points. - */ - static float getRectLeft(float[] points) { - return Math.min(Math.min(Math.min(points[0], points[2]), points[4]), points[6]); - } - - /** - * Get top value of the bounding rectangle of the given points. - */ - static float getRectTop(float[] points) { - return Math.min(Math.min(Math.min(points[1], points[3]), points[5]), points[7]); - } - - /** - * Get right value of the bounding rectangle of the given points. - */ - static float getRectRight(float[] points) { - return Math.max(Math.max(Math.max(points[0], points[2]), points[4]), points[6]); - } - - /** - * Get bottom value of the bounding rectangle of the given points. - */ - static float getRectBottom(float[] points) { - return Math.max(Math.max(Math.max(points[1], points[3]), points[5]), points[7]); - } - - /** - * Get width of the bounding rectangle of the given points. - */ - static float getRectWidth(float[] points) { - return getRectRight(points) - getRectLeft(points); - } - - /** - * Get height of the bounding rectangle of the given points. - */ - static float getRectHeight(float[] points) { - return getRectBottom(points) - getRectTop(points); - } - - /** - * Get horizontal center value of the bounding rectangle of the given points. - */ - static float getRectCenterX(float[] points) { - return (getRectRight(points) + getRectLeft(points)) / 2f; - } - - /** - * Get vertical center value of the bounding rectangle of the given points. - */ - static float getRectCenterY(float[] points) { - return (getRectBottom(points) + getRectTop(points)) / 2f; - } - - /** - * Get a rectangle for the given 4 points (x0,y0,x1,y1,x2,y2,x3,y3) by finding the min/max 2 - * points that contains the given 4 points and is a straight rectangle. - */ - static Rect getRectFromPoints( - float[] points, - int imageWidth, - int imageHeight, - boolean fixAspectRatio, - int aspectRatioX, - int aspectRatioY) { - int left = Math.round(Math.max(0, getRectLeft(points))); - int top = Math.round(Math.max(0, getRectTop(points))); - int right = Math.round(Math.min(imageWidth, getRectRight(points))); - int bottom = Math.round(Math.min(imageHeight, getRectBottom(points))); - - Rect rect = new Rect(left, top, right, bottom); - if (fixAspectRatio) { - fixRectForAspectRatio(rect, aspectRatioX, aspectRatioY); - } - - return rect; - } - - /** - * Fix the given rectangle if it doesn't confirm to aspect ration rule.<br> - * Make sure that width and height are equal if 1:1 fixed aspect ratio is requested. - */ - private static void fixRectForAspectRatio(Rect rect, int aspectRatioX, int aspectRatioY) { - if (aspectRatioX == aspectRatioY && rect.width() != rect.height()) { - if (rect.height() > rect.width()) { - rect.bottom -= rect.height() - rect.width(); - } else { - rect.right -= rect.width() - rect.height(); - } - } - } - - /** - * Write given bitmap to a temp file. If file already exists no-op as we already saved the file in - * this session. Uses JPEG 95% compression. - * - * @param uri the uri to write the bitmap to, if null - * @return the uri where the image was saved in, either the given uri or new pointing to temp - * file. - */ - static Uri writeTempStateStoreBitmap(Context context, Bitmap bitmap, Uri uri) { - try { - boolean needSave = true; - if (uri == null) { - uri = - Uri.fromFile( - File.createTempFile("aic_state_store_temp", ".jpg", context.getCacheDir())); - } else if (new File(uri.getPath()).exists()) { - needSave = false; - } - if (needSave) { - writeBitmapToUri(context, bitmap, uri, Bitmap.CompressFormat.JPEG, 95); - } - return uri; - } catch (Exception e) { - Log.w("AIC", "Failed to write bitmap to temp file for image-cropper save instance state", e); - return null; - } - } - - /** - * Write the given bitmap to the given uri using the given compression. - */ - static void writeBitmapToUri( - Context context, - Bitmap bitmap, - Uri uri, - Bitmap.CompressFormat compressFormat, - int compressQuality) - throws FileNotFoundException { - OutputStream outputStream = null; - try { - outputStream = context.getContentResolver().openOutputStream(uri); - bitmap.compress(compressFormat, compressQuality, outputStream); - } finally { - closeSafe(outputStream); - } - } - - /** - * Resize the given bitmap to the given width/height by the given option.<br> - */ - static Bitmap resizeBitmap( - Bitmap bitmap, int reqWidth, int reqHeight, CropImageView.RequestSizeOptions options) { - try { - if (reqWidth > 0 - && reqHeight > 0 - && (options == CropImageView.RequestSizeOptions.RESIZE_FIT - || options == CropImageView.RequestSizeOptions.RESIZE_INSIDE - || options == CropImageView.RequestSizeOptions.RESIZE_EXACT)) { - - Bitmap resized = null; - if (options == CropImageView.RequestSizeOptions.RESIZE_EXACT) { - resized = Bitmap.createScaledBitmap(bitmap, reqWidth, reqHeight, false); - } else { - int width = bitmap.getWidth(); - int height = bitmap.getHeight(); - float scale = Math.max(width / (float) reqWidth, height / (float) reqHeight); - if (scale > 1 || options == CropImageView.RequestSizeOptions.RESIZE_FIT) { - resized = - Bitmap.createScaledBitmap( - bitmap, (int) (width / scale), (int) (height / scale), false); - } - } - if (resized != null) { - if (resized != bitmap) { - bitmap.recycle(); - } - return resized; - } - } - } catch (Exception e) { - Log.w("AIC", "Failed to resize cropped image, return bitmap before resize", e); - } - return bitmap; - } - - // region: Private methods - - /** - * Crop image bitmap from URI by decoding it with specific width and height to down-sample if - * required. - * - * @param orgWidth used to get rectangle from points (handle edge cases to limit rectangle) - * @param orgHeight used to get rectangle from points (handle edge cases to limit rectangle) - * @param sampleMulti used to increase the sampling of the image to handle memory issues. - */ - private static BitmapSampled cropBitmap( - Context context, - Uri loadedImageUri, - float[] points, - int degreesRotated, - int orgWidth, - int orgHeight, - boolean fixAspectRatio, - int aspectRatioX, - int aspectRatioY, - int reqWidth, - int reqHeight, - boolean flipHorizontally, - boolean flipVertically, - int sampleMulti) { - - // get the rectangle in original image that contains the required cropped area (larger for non - // rectangular crop) - Rect rect = - getRectFromPoints(points, orgWidth, orgHeight, fixAspectRatio, aspectRatioX, aspectRatioY); - - int width = reqWidth > 0 ? reqWidth : rect.width(); - int height = reqHeight > 0 ? reqHeight : rect.height(); - - Bitmap result = null; - int sampleSize = 1; - try { - // decode only the required image from URI, optionally sub-sampling if reqWidth/reqHeight is - // given. - BitmapSampled bitmapSampled = - decodeSampledBitmapRegion(context, loadedImageUri, rect, width, height, sampleMulti); - result = bitmapSampled.bitmap; - sampleSize = bitmapSampled.sampleSize; - } catch (Exception ignored) { - } - - if (result != null) { - try { - // rotate the decoded region by the required amount - result = rotateAndFlipBitmapInt(result, degreesRotated, flipHorizontally, flipVertically); - - // rotating by 0, 90, 180 or 270 degrees doesn't require extra cropping - if (degreesRotated % 90 != 0) { - - // extra crop because non rectangular crop cannot be done directly on the image without - // rotating first - result = - cropForRotatedImage( - result, points, rect, degreesRotated, fixAspectRatio, aspectRatioX, aspectRatioY); - } - } catch (OutOfMemoryError e) { - if (result != null) { - result.recycle(); - } - throw e; - } - return new BitmapSampled(result, sampleSize); - } else { - // failed to decode region, may be skia issue, try full decode and then crop - return cropBitmap( - context, - loadedImageUri, - points, - degreesRotated, - fixAspectRatio, - aspectRatioX, - aspectRatioY, - sampleMulti, - rect, - width, - height, - flipHorizontally, - flipVertically); - } - } - - /** - * Crop bitmap by fully loading the original and then cropping it, fallback in case cropping - * region failed. - */ - private static BitmapSampled cropBitmap( - Context context, - Uri loadedImageUri, - float[] points, - int degreesRotated, - boolean fixAspectRatio, - int aspectRatioX, - int aspectRatioY, - int sampleMulti, - Rect rect, - int width, - int height, - boolean flipHorizontally, - boolean flipVertically) { - Bitmap result = null; - int sampleSize; - try { - BitmapFactory.Options options = new BitmapFactory.Options(); - options.inSampleSize = - sampleSize = - sampleMulti - * calculateInSampleSizeByReqestedSize(rect.width(), rect.height(), width, height); - - Bitmap fullBitmap = decodeImage(context.getContentResolver(), loadedImageUri, options); - if (fullBitmap != null) { - try { - // adjust crop points by the sampling because the image is smaller - float[] points2 = new float[points.length]; - System.arraycopy(points, 0, points2, 0, points.length); - for (int i = 0; i < points2.length; i++) { - points2[i] = points2[i] / options.inSampleSize; - } - - result = - cropBitmapObjectWithScale( - fullBitmap, - points2, - degreesRotated, - fixAspectRatio, - aspectRatioX, - aspectRatioY, - 1, - flipHorizontally, - flipVertically); - } finally { - if (result != fullBitmap) { - fullBitmap.recycle(); - } - } - } - } catch (OutOfMemoryError e) { - if (result != null) { - result.recycle(); - } - throw e; - } catch (Exception e) { - throw new RuntimeException( - "Failed to load sampled bitmap: " + loadedImageUri + "\r\n" + e.getMessage(), e); - } - return new BitmapSampled(result, sampleSize); - } - - /** - * Decode image from uri using "inJustDecodeBounds" to get the image dimensions. - */ - private static BitmapFactory.Options decodeImageForOption(ContentResolver resolver, Uri uri) - throws FileNotFoundException { - InputStream stream = null; - try { - stream = resolver.openInputStream(uri); - BitmapFactory.Options options = new BitmapFactory.Options(); - options.inJustDecodeBounds = true; - BitmapFactory.decodeStream(stream, EMPTY_RECT, options); - options.inJustDecodeBounds = false; - return options; - } finally { - closeSafe(stream); - } - } - - /** - * Decode image from uri using given "inSampleSize", but if failed due to out-of-memory then raise - * the inSampleSize until success. - */ - private static Bitmap decodeImage( - ContentResolver resolver, Uri uri, BitmapFactory.Options options) - throws FileNotFoundException { - do { - InputStream stream = null; - try { - stream = resolver.openInputStream(uri); - return BitmapFactory.decodeStream(stream, EMPTY_RECT, options); - } catch (OutOfMemoryError e) { - options.inSampleSize *= 2; - } finally { - closeSafe(stream); - } - } while (options.inSampleSize <= 512); - throw new RuntimeException("Failed to decode image: " + uri); - } - - /** - * Decode specific rectangle bitmap from stream using sampling to get bitmap with the requested - * limit. - * - * @param sampleMulti used to increase the sampling of the image to handle memory issues. - */ - private static BitmapSampled decodeSampledBitmapRegion( - Context context, Uri uri, Rect rect, int reqWidth, int reqHeight, int sampleMulti) { - InputStream stream = null; - BitmapRegionDecoder decoder = null; - try { - BitmapFactory.Options options = new BitmapFactory.Options(); - options.inSampleSize = - sampleMulti - * calculateInSampleSizeByReqestedSize( - rect.width(), rect.height(), reqWidth, reqHeight); - - stream = context.getContentResolver().openInputStream(uri); - decoder = BitmapRegionDecoder.newInstance(stream, false); - do { - try { - return new BitmapSampled(decoder.decodeRegion(rect, options), options.inSampleSize); - } catch (OutOfMemoryError e) { - options.inSampleSize *= 2; - } - } while (options.inSampleSize <= 512); - } catch (Exception e) { - throw new RuntimeException( - "Failed to load sampled bitmap: " + uri + "\r\n" + e.getMessage(), e); - } finally { - closeSafe(stream); - if (decoder != null) { - decoder.recycle(); - } - } - return new BitmapSampled(null, 1); - } - - /** - * Special crop of bitmap rotated by not stright angle, in this case the original crop bitmap - * contains parts beyond the required crop area, this method crops the already cropped and rotated - * bitmap to the final rectangle.<br> - * Note: rotating by 0, 90, 180 or 270 degrees doesn't require extra cropping. - */ - private static Bitmap cropForRotatedImage( - Bitmap bitmap, - float[] points, - Rect rect, - int degreesRotated, - boolean fixAspectRatio, - int aspectRatioX, - int aspectRatioY) { - if (degreesRotated % 90 != 0) { - - int adjLeft = 0, adjTop = 0, width = 0, height = 0; - double rads = Math.toRadians(degreesRotated); - int compareTo = - degreesRotated < 90 || (degreesRotated > 180 && degreesRotated < 270) - ? rect.left - : rect.right; - for (int i = 0; i < points.length; i += 2) { - if (points[i] >= compareTo - 1 && points[i] <= compareTo + 1) { - adjLeft = (int) Math.abs(Math.sin(rads) * (rect.bottom - points[i + 1])); - adjTop = (int) Math.abs(Math.cos(rads) * (points[i + 1] - rect.top)); - width = (int) Math.abs((points[i + 1] - rect.top) / Math.sin(rads)); - height = (int) Math.abs((rect.bottom - points[i + 1]) / Math.cos(rads)); - break; - } - } - - rect.set(adjLeft, adjTop, adjLeft + width, adjTop + height); - if (fixAspectRatio) { - fixRectForAspectRatio(rect, aspectRatioX, aspectRatioY); - } - - Bitmap bitmapTmp = bitmap; - bitmap = Bitmap.createBitmap(bitmap, rect.left, rect.top, rect.width(), rect.height()); - if (bitmapTmp != bitmap) { - bitmapTmp.recycle(); - } - } - return bitmap; - } - - /** - * Calculate the largest inSampleSize value that is a power of 2 and keeps both height and width - * larger than the requested height and width. - */ - private static int calculateInSampleSizeByReqestedSize( - int width, int height, int reqWidth, int reqHeight) { - int inSampleSize = 1; - if (height > reqHeight || width > reqWidth) { - while ((height / 2 / inSampleSize) > reqHeight && (width / 2 / inSampleSize) > reqWidth) { - inSampleSize *= 2; - } - } - return inSampleSize; - } - - /** - * Calculate the largest inSampleSize value that is a power of 2 and keeps both height and width - * smaller than max texture size allowed for the device. - */ - private static int calculateInSampleSizeByMaxTextureSize(int width, int height) { - int inSampleSize = 1; - if (mMaxTextureSize == 0) { - mMaxTextureSize = getMaxTextureSize(); - } - if (mMaxTextureSize > 0) { - while ((height / inSampleSize) > mMaxTextureSize - || (width / inSampleSize) > mMaxTextureSize) { - inSampleSize *= 2; - } - } - return inSampleSize; - } - - /** - * Rotate the given bitmap by the given degrees.<br> - * New bitmap is created and the old one is recycled. - */ - private static Bitmap rotateAndFlipBitmapInt( - Bitmap bitmap, int degrees, boolean flipHorizontally, boolean flipVertically) { - if (degrees > 0 || flipHorizontally || flipVertically) { - Matrix matrix = new Matrix(); - matrix.setRotate(degrees); - matrix.postScale(flipHorizontally ? -1 : 1, flipVertically ? -1 : 1); - Bitmap newBitmap = - Bitmap.createBitmap(bitmap, 0, 0, bitmap.getWidth(), bitmap.getHeight(), matrix, false); - if (newBitmap != bitmap) { - bitmap.recycle(); - } - return newBitmap; - } else { - return bitmap; - } - } - - /** - * Get the max size of bitmap allowed to be rendered on the device.<br> - * http://stackoverflow.com/questions/7428996/hw-accelerated-activity-how-to-get-opengl-texture-size-limit. - */ - private static int getMaxTextureSize() { - // Safe minimum default size - final int IMAGE_MAX_BITMAP_DIMENSION = 2048; - - try { - // Get EGL Display - EGL10 egl = (EGL10) EGLContext.getEGL(); - EGLDisplay display = egl.eglGetDisplay(EGL10.EGL_DEFAULT_DISPLAY); - - // Initialise - int[] version = new int[2]; - egl.eglInitialize(display, version); - - // Query total number of configurations - int[] totalConfigurations = new int[1]; - egl.eglGetConfigs(display, null, 0, totalConfigurations); - - // Query actual list configurations - EGLConfig[] configurationsList = new EGLConfig[totalConfigurations[0]]; - egl.eglGetConfigs(display, configurationsList, totalConfigurations[0], totalConfigurations); - - int[] textureSize = new int[1]; - int maximumTextureSize = 0; - - // Iterate through all the configurations to located the maximum texture size - for (int i = 0; i < totalConfigurations[0]; i++) { - // Only need to check for width since opengl textures are always squared - egl.eglGetConfigAttrib( - display, configurationsList[i], EGL10.EGL_MAX_PBUFFER_WIDTH, textureSize); - - // Keep track of the maximum texture size - if (maximumTextureSize < textureSize[0]) { - maximumTextureSize = textureSize[0]; - } - } - - // Release - egl.eglTerminate(display); - - // Return largest texture size found, or default - return Math.max(maximumTextureSize, IMAGE_MAX_BITMAP_DIMENSION); - } catch (Exception e) { - return IMAGE_MAX_BITMAP_DIMENSION; - } - } - - /** - * Close the given closeable object (Stream) in a safe way: check if it is null and catch-log - * exception thrown. - * - * @param closeable the closable object to close - */ - private static void closeSafe(Closeable closeable) { - if (closeable != null) { - try { - closeable.close(); - } catch (IOException ignored) { - } - } - } - // endregion - - // region: Inner class: BitmapSampled - - /** - * Holds bitmap instance and the sample size that the bitmap was loaded/cropped with. - */ - static final class BitmapSampled { - - /** - * The bitmap instance - */ - public final Bitmap bitmap; - - /** - * The sample size used to lower the size of the bitmap (1,2,4,8,...) - */ - final int sampleSize; - - BitmapSampled(Bitmap bitmap, int sampleSize) { - this.bitmap = bitmap; - this.sampleSize = sampleSize; - } - } - // endregion - - // region: Inner class: RotateBitmapResult - - /** - * The result of {@link #rotateBitmapByExif(android.graphics.Bitmap, ExifInterface)}. - */ - static final class RotateBitmapResult { - - /** - * The loaded bitmap - */ - public final Bitmap bitmap; - - /** - * The degrees the image was rotated - */ - final int degrees; - - RotateBitmapResult(Bitmap bitmap, int degrees) { - this.bitmap = bitmap; - this.degrees = degrees; - } - } - // endregion -} |