1 /* 2 * Copyright (C) 2013 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.gallery3d.filtershow.filters; 18 19 import android.graphics.Bitmap; 20 import android.graphics.Color; 21 import android.graphics.Matrix; 22 23 import com.android.gallery3d.R; 24 import com.android.gallery3d.filtershow.pipeline.FilterEnvironment; 25 26 import android.graphics.Bitmap; 27 import android.graphics.Color; 28 import android.graphics.Matrix; 29 import android.support.v8.renderscript.Allocation; 30 import android.support.v8.renderscript.Element; 31 import android.support.v8.renderscript.RenderScript; 32 import android.support.v8.renderscript.Script.LaunchOptions; 33 import android.support.v8.renderscript.Type; 34 import android.util.Log; 35 36 import com.android.gallery3d.R; 37 import com.android.gallery3d.filtershow.pipeline.FilterEnvironment; 38 39 public class ImageFilterGrad extends ImageFilterRS { 40 private static final String LOGTAG = "ImageFilterGrad"; 41 private ScriptC_grad mScript; 42 private Bitmap mSourceBitmap; 43 private static final int RADIUS_SCALE_FACTOR = 160; 44 45 private static final int STRIP_SIZE = 64; 46 47 FilterGradRepresentation mParameters = new FilterGradRepresentation(); 48 private Bitmap mOverlayBitmap; 49 50 public ImageFilterGrad() { 51 mName = "grad"; 52 } 53 54 @Override 55 public FilterRepresentation getDefaultRepresentation() { 56 return new FilterGradRepresentation(); 57 } 58 59 @Override 60 public void useRepresentation(FilterRepresentation representation) { 61 mParameters = (FilterGradRepresentation) representation; 62 } 63 64 @Override 65 protected void resetAllocations() { 66 67 } 68 69 @Override 70 public void resetScripts() { 71 if (mScript != null) { 72 mScript.destroy(); 73 mScript = null; 74 } 75 } 76 @Override 77 protected void createFilter(android.content.res.Resources res, float scaleFactor, 78 int quality) { 79 createFilter(res, scaleFactor, quality, getInPixelsAllocation()); 80 } 81 82 @Override 83 protected void createFilter(android.content.res.Resources res, float scaleFactor, 84 int quality, Allocation in) { 85 RenderScript rsCtx = getRenderScriptContext(); 86 87 Type.Builder tb_float = new Type.Builder(rsCtx, Element.F32_4(rsCtx)); 88 tb_float.setX(in.getType().getX()); 89 tb_float.setY(in.getType().getY()); 90 mScript = new ScriptC_grad(rsCtx); 91 } 92 93 94 private Bitmap getSourceBitmap() { 95 assert (mSourceBitmap != null); 96 return mSourceBitmap; 97 } 98 99 @Override 100 public Bitmap apply(Bitmap bitmap, float scaleFactor, int quality) { 101 if (SIMPLE_ICONS && FilterEnvironment.QUALITY_ICON == quality) { 102 return bitmap; 103 } 104 105 mSourceBitmap = bitmap; 106 Bitmap ret = super.apply(bitmap, scaleFactor, quality); 107 mSourceBitmap = null; 108 109 return ret; 110 } 111 112 @Override 113 protected void bindScriptValues() { 114 int width = getInPixelsAllocation().getType().getX(); 115 int height = getInPixelsAllocation().getType().getY(); 116 mScript.set_inputWidth(width); 117 mScript.set_inputHeight(height); 118 } 119 120 @Override 121 protected void runFilter() { 122 int[] x1 = mParameters.getXPos1(); 123 int[] y1 = mParameters.getYPos1(); 124 int[] x2 = mParameters.getXPos2(); 125 int[] y2 = mParameters.getYPos2(); 126 127 int width = getInPixelsAllocation().getType().getX(); 128 int height = getInPixelsAllocation().getType().getY(); 129 Matrix m = getOriginalToScreenMatrix(width, height); 130 float[] coord = new float[2]; 131 for (int i = 0; i < x1.length; i++) { 132 coord[0] = x1[i]; 133 coord[1] = y1[i]; 134 m.mapPoints(coord); 135 x1[i] = (int) coord[0]; 136 y1[i] = (int) coord[1]; 137 coord[0] = x2[i]; 138 coord[1] = y2[i]; 139 m.mapPoints(coord); 140 x2[i] = (int) coord[0]; 141 y2[i] = (int) coord[1]; 142 } 143 144 mScript.set_mask(mParameters.getMask()); 145 mScript.set_xPos1(x1); 146 mScript.set_yPos1(y1); 147 mScript.set_xPos2(x2); 148 mScript.set_yPos2(y2); 149 150 mScript.set_brightness(mParameters.getBrightness()); 151 mScript.set_contrast(mParameters.getContrast()); 152 mScript.set_saturation(mParameters.getSaturation()); 153 154 mScript.invoke_setupGradParams(); 155 runSelectiveAdjust( 156 getInPixelsAllocation(), getOutPixelsAllocation()); 157 158 } 159 160 private void runSelectiveAdjust(Allocation in, Allocation out) { 161 int width = in.getType().getX(); 162 int height = in.getType().getY(); 163 164 LaunchOptions options = new LaunchOptions(); 165 int ty; 166 options.setX(0, width); 167 168 for (ty = 0; ty < height; ty += STRIP_SIZE) { 169 int endy = ty + STRIP_SIZE; 170 if (endy > height) { 171 endy = height; 172 } 173 options.setY(ty, endy); 174 mScript.forEach_selectiveAdjust(in, out, options); 175 if (checkStop()) { 176 return; 177 } 178 } 179 } 180 181 private boolean checkStop() { 182 RenderScript rsCtx = getRenderScriptContext(); 183 rsCtx.finish(); 184 if (getEnvironment().needsStop()) { 185 return true; 186 } 187 return false; 188 } 189 } 190 191
